/* ============================================================
   卡代智创建站 cardai168.cn - 全站样式表
   风格：户外拓展风 | 配色：军绿 + 卡其 + 正红
   纯CSS3，无框架依赖
   ============================================================ */

/* ---------- CSS变量：色彩系统 ---------- */
:root {
  --army-green: #3d4a2e;       /* 军绿 主色 */
  --army-green-dark: #2a3320;  /* 深军绿 */
  --army-green-light: #5a6b45; /* 浅军绿 */
  --khaki: #c4b896;             /* 卡其 辅助色 */
  --khaki-light: #e0d8c0;      /* 浅卡其 */
  --khaki-dark: #a89b72;        /* 深卡其 */
  --red: #c1272d;               /* 正红 强调色 */
  --red-dark: #9e1f24;          /* 深红 */
  --red-light: #e84545;         /* 浅红 */
  --cream: #f5f1e8;             /* 米白 背景 */
  --cream-dark: #ebe5d5;        /* 深米白 */
  --charcoal: #2c2c2c;          /* 炭黑 文字 */
  --gray-text: #6b6b6b;         /* 灰色文字 */
  --gray-light: #e8e4da;        /* 浅灰边框 */
  --white: #ffffff;
  --shadow-sm: 0 2px 8px rgba(45,51,32,0.08);
  --shadow-md: 0 4px 20px rgba(45,51,32,0.12);
  --shadow-lg: 0 8px 40px rgba(45,51,32,0.18);
  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", Georgia, serif;
  --container: 1280px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--charcoal);
  background: var(--cream);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; border: 0; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
a:hover { color: var(--red); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--army-green-dark); }
h1 { font-size: clamp(28px, 4vw, 48px); }
h2 { font-size: clamp(24px, 3vw, 36px); }
h3 { font-size: clamp(18px, 2vw, 24px); }
h4 { font-size: 18px; }
p { margin-bottom: 1em; }
input, textarea, select, button { font-family: inherit; font-size: inherit; }
button { cursor: pointer; border: none; background: none; }

/* ---------- 通用容器 ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 960px; }
.section { padding: 80px 0; }
.section-sm { padding: 50px 0; }
.section-lg { padding: 120px 0; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }

/* ---------- 按钮系统 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  border-radius: 2px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.btn-primary {
  background: var(--red);
  color: var(--white);
  border: 2px solid var(--red);
}
.btn-primary:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(193,39,45,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--army-green);
  border: 2px solid var(--army-green);
}
.btn-outline:hover {
  background: var(--army-green);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-light {
  background: var(--khaki-light);
  color: var(--army-green-dark);
  border: 2px solid var(--khaki-light);
}
.btn-light:hover {
  background: var(--khaki);
  border-color: var(--khaki);
  color: var(--army-green-dark);
}
.btn-lg { padding: 18px 48px; font-size: 16px; }
.btn-sm { padding: 10px 24px; font-size: 13px; }

/* ---------- 区块标题 ---------- */
.section-header { margin-bottom: 50px; }
.section-header .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 12px;
  position: relative;
  padding-left: 40px;
}
.section-header .eyebrow::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 30px;
  height: 2px;
  background: var(--red);
}
.section-header h2 { margin-bottom: 16px; }
.section-header p { color: var(--gray-text); max-width: 640px; font-size: 16px; }
.section-header.center { text-align: center; }
.section-header.center .eyebrow { padding-left: 0; padding-right: 40px; }
.section-header.center .eyebrow::before { left: auto; right: 0; }
.section-header.center p { margin: 0 auto; }

/* ============================================================
   顶部导航栏
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition);
  background: transparent;
}
.site-header.scrolled {
  background: rgba(42,51,32,0.96);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
}
.header-top {
  background: rgba(42,51,32,0.9);
  padding: 8px 0;
  font-size: 13px;
  color: var(--khaki-light);
  border-bottom: 1px solid rgba(196,184,150,0.15);
}
.site-header.scrolled .header-top { display: none; }
.header-top .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.header-top-info { display: flex; gap: 28px; }
.header-top-info span { display: flex; align-items: center; gap: 6px; }
.header-top-info svg { width: 14px; height: 14px; fill: var(--khaki); }
.header-top-social { display: flex; gap: 14px; }
.header-top-social a {
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(196,184,150,0.1);
  transition: var(--transition);
}
.header-top-social a:hover { background: var(--red); }
.header-top-social svg { width: 12px; height: 12px; fill: var(--khaki-light); }

.header-main {
  padding: 18px 0;
  transition: var(--transition);
}
.site-header.scrolled .header-main { padding: 12px 0; }
.header-main .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.site-logo img { height: 44px; width: auto; }
.site-logo .logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.site-logo .logo-cn {
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 2px;
}
.site-logo .logo-en {
  font-size: 11px;
  color: var(--khaki);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* 主导航 */
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav > li { position: relative; }
.main-nav > li > a {
  display: block;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 1px;
  position: relative;
  transition: var(--transition);
}
.main-nav > li > a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--red);
  transition: var(--transition);
}
.main-nav > li:hover > a,
.main-nav > li.active > a { color: var(--khaki-light); }
.main-nav > li:hover > a::after,
.main-nav > li.active > a::after { width: 24px; }

/* 下拉菜单 */
.main-nav .dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--white);
  border-top: 3px solid var(--red);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: var(--transition);
  padding: 12px 0;
  z-index: 100;
}
.main-nav > li:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.main-nav .dropdown li a {
  display: block;
  padding: 10px 24px;
  font-size: 14px;
  color: var(--charcoal);
  border-left: 3px solid transparent;
  transition: var(--transition);
}
.main-nav .dropdown li a:hover {
  background: var(--cream);
  border-left-color: var(--red);
  color: var(--red);
  padding-left: 28px;
}

.header-cta { flex-shrink: 0; margin-left: 16px; }
.header-cta .btn { padding: 10px 24px; font-size: 14px; }

/* 移动端汉堡菜单 */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  height: 32px;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 1001;
}
.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
}
.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================================
   Hero / Banner 区域
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--army-green-dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(42,51,32,0.85) 0%, rgba(61,74,46,0.6) 50%, rgba(42,51,32,0.8) 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding-top: 80px;
}
.hero-tag {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(193,39,45,0.9);
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease both;
}
.hero h1 {
  color: var(--white);
  margin-bottom: 24px;
  animation: fadeInUp 0.8s 0.2s ease both;
}
.hero h1 .highlight { color: var(--khaki); }
.hero-desc {
  font-size: 18px;
  color: var(--khaki-light);
  margin-bottom: 36px;
  max-width: 560px;
  animation: fadeInUp 0.8s 0.4s ease both;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s 0.6s ease both;
}
.hero-stats {
  position: absolute;
  bottom: 60px;
  left: 0;
  right: 0;
  z-index: 2;
}
.hero-stats .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(196,184,150,0.2);
}
.hero-stat {
  padding: 28px 24px;
  text-align: center;
  border-right: 1px solid rgba(196,184,150,0.15);
}
.hero-stat:last-child { border-right: none; }
.hero-stat .num {
  font-size: 36px;
  font-weight: 800;
  color: var(--khaki);
  line-height: 1;
  margin-bottom: 8px;
}
.hero-stat .label {
  font-size: 13px;
  color: var(--khaki-light);
  letter-spacing: 1px;
}

/* 页面内页 Banner */
.page-banner {
  position: relative;
  height: 420px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--army-green-dark);
  margin-top: 0;
}
.page-banner .hero-bg img { object-fit: cover; }
.page-banner .hero-overlay {
  background: linear-gradient(135deg, rgba(42,51,32,0.9) 0%, rgba(61,74,46,0.7) 100%);
}
.page-banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
  padding-top: 60px;
}
.page-banner h1 {
  color: var(--white);
  margin-bottom: 16px;
}
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 10px;
  font-size: 14px;
  color: var(--khaki-light);
}
.breadcrumb a { color: var(--khaki); }
.breadcrumb a:hover { color: var(--red); }
.breadcrumb .sep { color: var(--khaki-dark); }

/* ============================================================
   通用卡片样式
   ============================================================ */
.card {
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.card:hover .card-img img { transform: scale(1.08); }
.card-body { padding: 24px; }
.card-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--cream-dark);
  color: var(--army-green);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.card-title {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--army-green-dark);
  transition: var(--transition);
}
.card:hover .card-title { color: var(--red); }
.card-desc {
  font-size: 14px;
  color: var(--gray-text);
  margin-bottom: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================================
   网格布局工具
   ============================================================ */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; justify-content: center; align-items: center; }

/* ============================================================
   特色区块 - 交错图文
   ============================================================ */
.feature-alt { padding: 80px 0; }
.feature-alt-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}
.feature-alt-row:last-child { margin-bottom: 0; }
.feature-alt-row.reverse .feature-img { order: 2; }
.feature-img {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.feature-img img { width: 100%; height: 400px; object-fit: cover; }
.feature-img::after {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: -20px;
  bottom: -20px;
  border: 2px solid var(--khaki);
  z-index: -1;
}
.feature-text .num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--red);
  color: var(--white);
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 20px;
  border-radius: 2px;
}
.feature-text h3 { margin-bottom: 16px; font-size: 26px; }
.feature-text p { color: var(--gray-text); margin-bottom: 20px; }
.feature-list { margin-top: 20px; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--charcoal);
}
.feature-list li::before {
  content: '';
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  background: var(--red);
  margin-top: 8px;
  transform: rotate(45deg);
}

/* ============================================================
   服务卡片 - 图标+文字
   ============================================================ */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.service-card {
  background: var(--white);
  padding: 40px 32px;
  border-radius: 4px;
  border-top: 4px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.service-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--cream);
  margin-bottom: 24px;
  border-radius: 4px;
  transition: var(--transition);
}
.service-card:hover .service-icon {
  background: var(--red);
}
.service-icon svg { width: 32px; height: 32px; fill: var(--army-green); transition: var(--transition); }
.service-card:hover .service-icon svg { fill: var(--white); }
.service-card h3 { font-size: 20px; margin-bottom: 12px; }
.service-card p { color: var(--gray-text); font-size: 14px; margin-bottom: 0; }
.service-card .service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--red);
  opacity: 0;
  transform: translateX(-10px);
  transition: var(--transition);
}
.service-card:hover .service-link {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================================
   数据统计区块
   ============================================================ */
.stats-band {
  background: var(--army-green-dark);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.stats-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c4b896' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.stats-band .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 1;
}
.stat-item { text-align: center; }
.stat-item .num {
  font-size: 48px;
  font-weight: 800;
  color: var(--khaki);
  line-height: 1;
  margin-bottom: 12px;
}
.stat-item .num .suffix { font-size: 24px; }
.stat-item .label {
  font-size: 15px;
  color: var(--khaki-light);
  letter-spacing: 1px;
}

/* ============================================================
   案例展示
   ============================================================ */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}
.case-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.case-card:hover img { transform: scale(1.1); }
.case-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(42,51,32,0.95) 0%, rgba(42,51,32,0.3) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  transition: var(--transition);
}
.case-card:hover .case-overlay {
  background: linear-gradient(to top, rgba(193,39,45,0.9) 0%, rgba(193,39,45,0.4) 60%, transparent 100%);
}
.case-cat {
  font-size: 12px;
  color: var(--khaki);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.case-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0;
}
.case-arrow {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.5);
  transition: var(--transition);
}
.case-card:hover .case-arrow {
  opacity: 1;
  transform: scale(1);
}
.case-arrow svg { width: 18px; height: 18px; fill: var(--white); }

/* ============================================================
   资讯/新闻列表
   ============================================================ */
.news-section { background: var(--cream-dark); }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.news-card {
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.news-card-img {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.news-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.news-card:hover .news-card-img img { transform: scale(1.06); }
.news-date-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--red);
  color: var(--white);
  padding: 8px 14px;
  text-align: center;
  line-height: 1.2;
}
.news-date-badge .day { font-size: 20px; font-weight: 800; display: block; }
.news-date-badge .month { font-size: 11px; letter-spacing: 1px; }
.news-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.news-card-cat {
  font-size: 12px;
  color: var(--red);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.news-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--army-green-dark);
  margin-bottom: 12px;
  line-height: 1.4;
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card:hover .news-card-title { color: var(--red); }
.news-card-excerpt {
  font-size: 14px;
  color: var(--gray-text);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.news-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--gray-light);
  font-size: 13px;
  color: var(--gray-text);
}
.news-card-meta .read-more {
  color: var(--red);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 新闻列表页 - 大列表样式 */
.news-list-large { display: flex; flex-direction: column; gap: 30px; }
.news-item-large {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 30px;
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.news-item-large:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}
.news-item-large .news-img {
  aspect-ratio: auto;
  height: 100%;
  min-height: 240px;
  overflow: hidden;
}
.news-item-large .news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.news-item-large:hover .news-img img { transform: scale(1.05); }
.news-item-large .news-content { padding: 30px; display: flex; flex-direction: column; justify-content: center; }
.news-item-large .news-cat {
  display: inline-block;
  font-size: 12px;
  color: var(--red);
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.news-item-large h3 {
  font-size: 22px;
  margin-bottom: 14px;
  transition: var(--transition);
}
.news-item-large:hover h3 { color: var(--red); }
.news-item-large p {
  color: var(--gray-text);
  font-size: 15px;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-item-large .news-meta {
  display: flex;
  gap: 20px;
  font-size: 13px;
  color: var(--gray-text);
}
.news-item-large .news-meta span { display: flex; align-items: center; gap: 6px; }

/* ============================================================
   新闻详情页
   ============================================================ */
.article-wrap {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 50px;
  padding: 60px 0;
}
.article-main {
  background: var(--white);
  padding: 50px;
  border-radius: 4px;
  box-shadow: var(--shadow-sm);
}
.article-header { margin-bottom: 36px; padding-bottom: 30px; border-bottom: 2px solid var(--cream-dark); }
.article-cat {
  display: inline-block;
  padding: 4px 14px;
  background: var(--red);
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 18px;
}
.article-title {
  font-size: 32px;
  line-height: 1.4;
  margin-bottom: 20px;
  color: var(--army-green-dark);
}
.article-meta {
  display: flex;
  gap: 24px;
  font-size: 14px;
  color: var(--gray-text);
  flex-wrap: wrap;
}
.article-meta span { display: flex; align-items: center; gap: 6px; }
.article-meta svg { width: 16px; height: 16px; fill: var(--khaki-dark); }
.article-content { font-size: 16px; line-height: 1.9; color: var(--charcoal); }
.article-content p { margin-bottom: 1.5em; }
.article-content h2, .article-content h3 { margin: 30px 0 16px; }
.article-content img {
  width: 100%;
  border-radius: 4px;
  margin: 24px 0;
}
.article-content blockquote {
  border-left: 4px solid var(--red);
  padding: 20px 28px;
  background: var(--cream);
  margin: 24px 0;
  font-style: italic;
  color: var(--army-green);
  font-size: 17px;
}

/* 侧边栏 */
.article-sidebar { display: flex; flex-direction: column; gap: 30px; }
.sidebar-widget {
  background: var(--white);
  border-radius: 4px;
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.sidebar-widget h4 {
  font-size: 18px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--cream-dark);
  position: relative;
}
.sidebar-widget h4::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--red);
}
.sidebar-news-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-light);
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.sidebar-news-list li:last-child { border-bottom: none; }
.sidebar-news-list .thumb {
  width: 80px;
  height: 60px;
  flex-shrink: 0;
  border-radius: 2px;
  overflow: hidden;
}
.sidebar-news-list .thumb img { width: 100%; height: 100%; object-fit: cover; }
.sidebar-news-list .info h5 {
  font-size: 14px;
  line-height: 1.4;
  margin-bottom: 6px;
  color: var(--charcoal);
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sidebar-news-list li:hover .info h5 { color: var(--red); }
.sidebar-news-list .info .date { font-size: 12px; color: var(--gray-text); }

/* ============================================================
   联系表单
   ============================================================ */
.contact-section { padding: 80px 0; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 50px;
  align-items: start;
}
.contact-info-card {
  background: var(--army-green-dark);
  color: var(--white);
  padding: 50px 40px;
  border-radius: 4px;
}
.contact-info-card h3 { color: var(--khaki); margin-bottom: 30px; font-size: 24px; }
.contact-info-item {
  display: flex;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(196,184,150,0.15);
}
.contact-info-item:last-child { border-bottom: none; }
.contact-info-item .icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  background: rgba(193,39,45,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}
.contact-info-item .icon svg { width: 22px; height: 22px; fill: var(--red-light); }
.contact-info-item .label { font-size: 13px; color: var(--khaki); margin-bottom: 4px; letter-spacing: 1px; }
.contact-info-item .value { font-size: 16px; color: var(--white); }

.contact-form-card {
  background: var(--white);
  padding: 50px 40px;
  border-radius: 4px;
  box-shadow: var(--shadow-md);
}
.contact-form-card h3 { margin-bottom: 30px; font-size: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--army-green-dark);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--gray-light);
  border-radius: 2px;
  font-size: 15px;
  color: var(--charcoal);
  background: var(--cream);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--army-green);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(61,74,46,0.1);
}
.form-group textarea { resize: vertical; min-height: 140px; }

/* ============================================================
   价格方案
   ============================================================ */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; align-items: stretch; }
.pricing-card {
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}
.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.pricing-card.featured {
  border: 2px solid var(--red);
  transform: scale(1.03);
}
.pricing-card.featured:hover { transform: scale(1.03) translateY(-8px); }
.pricing-badge {
  position: absolute;
  top: 20px;
  right: -30px;
  background: var(--red);
  color: var(--white);
  padding: 6px 40px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  transform: rotate(45deg);
}
.pricing-header {
  padding: 36px 30px;
  text-align: center;
  background: var(--cream);
  border-bottom: 1px solid var(--gray-light);
}
.pricing-card.featured .pricing-header { background: var(--army-green-dark); }
.pricing-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--army-green-dark);
  margin-bottom: 8px;
}
.pricing-card.featured .pricing-name { color: var(--khaki); }
.pricing-desc { font-size: 13px; color: var(--gray-text); }
.pricing-card.featured .pricing-desc { color: var(--khaki-light); }
.pricing-price {
  padding: 30px;
  text-align: center;
}
.pricing-price .amount {
  font-size: 48px;
  font-weight: 800;
  color: var(--red);
  line-height: 1;
}
.pricing-price .unit { font-size: 16px; color: var(--gray-text); }
.pricing-features {
  padding: 0 30px 30px;
  flex: 1;
}
.pricing-features li {
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-light);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.pricing-features li::before {
  content: '';
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  background: var(--army-green-light);
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E") center/contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E") center/contain no-repeat;
}
.pricing-footer { padding: 0 30px 36px; text-align: center; }

/* ============================================================
   团队展示
   ============================================================ */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.team-card {
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  text-align: center;
  transition: var(--transition);
}
.team-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.team-photo {
  aspect-ratio: 3/4;
  overflow: hidden;
  position: relative;
}
.team-photo img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.team-card:hover .team-photo img { transform: scale(1.05); }
.team-info { padding: 24px 20px; }
.team-info h4 { font-size: 18px; margin-bottom: 6px; }
.team-info .role { font-size: 13px; color: var(--red); font-weight: 600; letter-spacing: 1px; }

/* ============================================================
   流程步骤
   ============================================================ */
.process-section { background: var(--army-green-dark); padding: 80px 0; position: relative; }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
}
.process-step {
  text-align: center;
  position: relative;
  padding: 0 10px;
}
.process-step .step-num {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background: var(--red);
  color: var(--white);
  font-size: 28px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  position: relative;
  z-index: 2;
  border: 4px solid var(--army-green-dark);
}
.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 36px;
  left: 60%;
  width: 80%;
  height: 2px;
  background: dashed;
  border-top: 2px dashed rgba(196,184,150,0.3);
  z-index: 1;
}
.process-step h4 { color: var(--khaki); margin-bottom: 10px; font-size: 18px; }
.process-step p { color: var(--khaki-light); font-size: 14px; margin-bottom: 0; }

/* ============================================================
   CTA 横幅
   ============================================================ */
.cta-band {
  position: relative;
  padding: 80px 0;
  background: var(--army-green);
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23c4b896' fill-opacity='0.04'%3E%3Cpath d='M0 40L40 0H20L0 20M40 40V20L20 40'/%3E%3C/g%3E%3C/svg%3E");
}
.cta-band .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 1;
  gap: 40px;
}
.cta-band h2 { color: var(--white); margin-bottom: 8px; }
.cta-band p { color: var(--khaki-light); margin-bottom: 0; font-size: 16px; }

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  background: var(--army-green-dark);
  color: var(--khaki-light);
  padding-top: 70px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(196,184,150,0.15);
}
.footer-col h4 {
  color: var(--khaki);
  font-size: 17px;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 36px;
  height: 2px;
  background: var(--red);
}
.footer-about .site-logo { margin-bottom: 20px; }
.footer-about p { font-size: 14px; line-height: 1.8; margin-bottom: 20px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(196,184,150,0.1);
  border-radius: 50%;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--red); transform: translateY(-3px); }
.footer-social svg { width: 16px; height: 16px; fill: var(--khaki-light); }

.footer-links li { padding: 8px 0; }
.footer-links li a {
  font-size: 14px;
  color: var(--khaki-light);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-links li a::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--red);
  transform: rotate(45deg);
  flex-shrink: 0;
  transition: var(--transition);
}
.footer-links li a:hover { color: var(--white); padding-left: 6px; }
.footer-links li a:hover::before { background: var(--khaki); }

.footer-contact li {
  display: flex;
  gap: 14px;
  padding: 12px 0;
  font-size: 14px;
  align-items: flex-start;
}
.footer-contact .icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  background: rgba(193,39,45,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}
.footer-contact .icon svg { width: 16px; height: 16px; fill: var(--red-light); }

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--khaki-dark);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { color: var(--khaki-dark); }
.footer-bottom-links a:hover { color: var(--khaki-light); }

/* ============================================================
   动画
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* 滚动渐入 */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats .container { grid-template-columns: repeat(2, 1fr); }
  .stats-band .container { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-step:not(:last-child)::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .article-wrap { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 50px 0; }
  .section-lg { padding: 70px 0; }
  
  .header-top { display: none; }
  .header-main { padding: 14px 0; }
  
  .mobile-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--army-green-dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 24px 24px;
    gap: 0;
    transition: right 0.4s ease;
    overflow-y: auto;
    z-index: 999;
  }
  .main-nav.open { right: 0; }
  .main-nav > li { width: 100%; border-bottom: 1px solid rgba(196,184,150,0.1); }
  .main-nav > li > a { padding: 16px 0; font-size: 16px; }
  .main-nav > li > a::after { display: none; }
  .main-nav .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: transparent;
    border-top: none;
    padding: 0 0 12px 16px;
    display: none;
  }
  .main-nav > li.open .dropdown { display: block; }
  .main-nav .dropdown li a { color: var(--khaki-light); border-left: none; padding: 10px 0; }
  .main-nav .dropdown li a:hover { background: none; color: var(--red); padding-left: 0; }
  
  .header-cta { display: none; }
  
  .hero { min-height: 80vh; }
  .hero-content { padding-top: 60px; }
  .hero h1 { font-size: 32px; }
  .hero-desc { font-size: 16px; }
  .hero-stats { position: static; padding: 30px 0; background: var(--army-green-dark); }
  .hero-stats .container { grid-template-columns: 1fr 1fr; }
  .hero-stat { padding: 20px 12px; }
  .hero-stat .num { font-size: 28px; }
  
  .page-banner { height: 300px; }
  
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 20px; }
  .service-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card.featured { transform: none; }
  .pricing-card.featured:hover { transform: translateY(-8px); }
  .team-grid { grid-template-columns: 1fr 1fr; }
  
  .feature-alt-row { grid-template-columns: 1fr; gap: 30px; margin-bottom: 50px; }
  .feature-alt-row.reverse .feature-img { order: 0; }
  .feature-img img { height: 280px; }
  
  .contact-grid { grid-template-columns: 1fr; gap: 30px; }
  .form-row { grid-template-columns: 1fr; }
  
  .news-item-large { grid-template-columns: 1fr; }
  .news-item-large .news-img { min-height: 200px; }
  
  .article-main { padding: 30px 20px; }
  .article-title { font-size: 24px; }
  
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  
  .cta-band .container { flex-direction: column; text-align: center; }
  
  .stats-band .container { grid-template-columns: 1fr 1fr; }
  .stat-item .num { font-size: 36px; }
  
  .process-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .team-grid { grid-template-columns: 1fr; }
}