/* ===== 全局重置 & 变量 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --primary: #157336;
  --primary-dark: #0f5a2a;
  --primary-light: #e6f5ec;
  --gold: #c9a84c;
  --gray-800: #2c3e50;
  --gray-600: #5a6f7e;
  --gray-400: #a0b3c4;
  --gray-200: #e8edf2;
  --gray-100: #f5f7fa;
  --white: #ffffff;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'Segoe UI', 'Microsoft Yahei', sans-serif;
  background-color: var(--gray-100);
  background-image:
    radial-gradient(circle at 10% 20%, rgba(21, 115, 54, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 90% 80%, rgba(201, 168, 76, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(21, 115, 54, 0.05) 0%, transparent 70%),
    linear-gradient(rgba(21, 115, 54, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 115, 54, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 40px 40px, 40px 40px;
  background-attachment: fixed;
  color: var(--gray-800);
  line-height: 1.6;
  min-height: 100vh;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1400px; margin: 0 auto; padding: 0 24px; }

/* ===== 顶部导航 ===== */
.header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { width: 60px; height: 60px; flex-shrink: 0; }
.brand-logo img { width: 100%; height: 100%; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; line-height: 1.5; }
.brand-text h1 { font-size: 25px; font-weight: 700; color: var(--primary); letter-spacing: 0.5px; }
.brand-text span { font-size: 15px; color: var(--gray-600); }
.nav-list { display: flex; align-items: center; gap: 15px; }
.nav-list li { white-space: nowrap; }
.nav-list li:not(:last-child)::after {
  content: "/"; color: var(--gray-400); margin: 0 6px 0 10px; font-weight: 300;
}
.nav-list a {
  display: inline-block; padding: 6px 4px; font-size: 18px; font-weight: 600;
  color: var(--gray-800); transition: color var(--transition); position: relative;
}
.nav-list a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2.5px;
  background: var(--primary); transition: width var(--transition);
}
.nav-list a:hover, .nav-list a.active { color: var(--primary); }
.nav-list a:hover::after, .nav-list a.active::after { width: 100%; }
.nav-cta a {
  display: inline-block; padding: 8px 22px; background: var(--primary);
  color: var(--white); border-radius: 50px; font-weight: 600; font-size: 14px;
  transition: background var(--transition), transform var(--transition);
  box-shadow: 0 4px 12px rgba(21, 115, 54, 0.25);
}
.nav-cta a:hover { background: var(--primary-dark); transform: translateY(-2px); }
.menu-toggle { display: none; font-size: 24px; cursor: pointer; color: var(--gray-800); padding: 4px 8px; }
.menu-toggle:hover { color: var(--primary); }

/* 移动端菜单 */
.nav-mobile {
  display: none; flex-direction: column; background: var(--white);
  padding: 16px 24px 24px; border-top: 1px solid var(--gray-200);
  box-shadow: var(--shadow); position: absolute; top: 72px; left: 0;
  width: 100%; gap: 6px;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  padding: 12px 0; font-size: 15px; font-weight: 600; color: var(--gray-800);
  border-bottom: 1px solid var(--gray-200); transition: color var(--transition);
}
.nav-mobile a:hover, .nav-mobile a.active { color: var(--primary); }

@media (max-width: 992px) {
  .nav-list, .nav-cta { display: none; }
  .menu-toggle { display: block; }
  .nav-wrap { height: 64px; }
  .nav-mobile { top: 64px; }
  .brand-logo { width: 40px; height: 40px; }
  .brand-text h1 { font-size: 17px; }
  .brand-text span { font-size: 10px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .brand { gap: 8px; }
  .brand-logo { width: 34px; height: 34px; }
  .brand-text h1 { font-size: 15px; }
}

/* ===== 首页 Banner ===== */
.banner {
  margin-top: 72px; height: 560px; position: relative;
  display: flex; align-items: center; justify-content: center;
  text-align: center; color: var(--white); overflow: hidden;
}
.banner-slides { position: relative; width: 100%; height: 100%; }
.slide {
  position: absolute; inset: 0; background-size: cover; background-position: center 30%;
  opacity: 0; transition: opacity 1.2s ease-in-out;
  display: flex; align-items: center; justify-content: center;
}
.slide.active { opacity: 1; z-index: 2; }
.slide::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.25) 100%);
}
.slide .banner-content {
  position: relative; z-index: 2; max-width: 780px; padding: 0 20px;
}
.banner-content h2 {
  font-size: 44px; font-weight: 700; letter-spacing: 1px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3); margin-bottom: 16px;
  word-break: keep-all; white-space: nowrap;
}
.banner-content p {
  font-size: 20px; opacity: 0.92; text-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
  margin-bottom: 36px;
}
.banner-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary, .btn-outline {
  display: inline-block; padding: 14px 36px; border-radius: 50px;
  font-weight: 600; font-size: 16px; transition: all var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--primary); border-color: var(--primary);
  color: var(--white); box-shadow: 0 8px 24px rgba(21, 115, 54, 0.35);
}
.btn-primary:hover {
  background: var(--primary-dark); transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(21, 115, 54, 0.45);
}
.btn-outline {
  background: transparent; border-color: var(--white); color: var(--white);
}
.btn-outline:hover { background: var(--white); color: var(--primary); transform: translateY(-3px); }

.banner-dots {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  z-index: 10; display: flex; gap: 14px;
}
.banner-dots .dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.5); cursor: pointer;
  transition: background 0.3s, transform 0.3s;
}
.banner-dots .dot.active { background: white; transform: scale(1.25); }
.banner-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 10;
  background: rgba(255, 255, 255, 0.15); backdrop-filter: blur(4px);
  border: 2px solid rgba(255, 255, 255, 0.3); border-radius: 50%;
  width: 48px; height: 48px; display: flex; align-items: center; justify-content: center;
  color: white; font-size: 20px; cursor: pointer; transition: all 0.3s ease;
}
.banner-arrow:hover { background: rgba(255, 255, 255, 0.3); border-color: rgba(255, 255, 255, 0.6); }
.banner-arrow-left { left: 24px; }
.banner-arrow-right { right: 24px; }
@media (max-width: 768px) {
  .banner { height: 420px; margin-top: 64px; }
  .banner-content h2 { font-size: 22px; }
  .banner-content p { font-size: 16px; margin-bottom: 28px; }
  .btn-primary, .btn-outline { padding: 11px 26px; font-size: 14px; }
  .banner-arrow { width: 36px; height: 36px; font-size: 14px; }
  .banner-arrow-left { left: 12px; }
  .banner-arrow-right { right: 12px; }
  .banner-dots { bottom: 18px; gap: 10px; }
  .banner-dots .dot { width: 10px; height: 10px; }
}

/* ===== 内页顶部横幅 ===== */
.page-banner {
  margin-top: 65px;
  padding: 8px 0;
  background: linear-gradient(135deg, rgba(21, 115, 54, 0.10) 0%, rgba(230, 245, 236, 0.45) 100%);
  border-bottom: 1px solid var(--gray-200);
}
.page-banner h2 {
  font-size: 24px; font-weight: 700; color: var(--gray-800);
  margin-bottom: 8px;
}
.breadcrumb { font-size: 14px; color: var(--gray-600); }
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { margin: 0 8px; color: var(--gray-400); }
@media (max-width: 768px) {
  .page-banner { margin-top: 64px; padding: 32px 0; }
  .page-banner h2 { font-size: 22px; }
}

/* ===== 主布局（侧边栏 + 内容） ===== */
.main-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  padding-top: 20px;
  padding-bottom: 60px;
  align-items: start;
}
.sidebar {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: sticky;
  top: 96px;
}
.sidebar-title {
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex; align-items: center; gap: 10px;
  letter-spacing: 0.5px;
}
.sidebar-title i { font-size: 18px; }
.sidebar-menu li a {
  display: block;
  padding: 16px 24px 16px 28px;
  font-size: 15px;
  color: var(--gray-800);
  border-bottom: 1px solid var(--gray-200);
  transition: all 0.25s ease;
  position: relative;
}
.sidebar-menu li:last-child a { border-bottom: none; }
.sidebar-menu li a::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--primary);
  transform: scaleY(0); transition: transform 0.25s ease;
}
.sidebar-menu li a:hover { background: var(--primary-light); color: var(--primary); padding-left: 32px; }
.sidebar-menu li a.active {
  background: var(--primary-light); color: var(--primary); font-weight: 600;
}
.sidebar-menu li a.active::before,
.sidebar-menu li a:hover::before { transform: scaleY(1); }

.content-area {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 15px;
  min-height: 400px;
}
.content-area h2 {
  font-size: 24px; font-weight: 700; color: var(--gray-800);
  margin-bottom: 24px; padding-bottom: 16px;
  border-bottom: 2px solid var(--primary-light);
  display: flex; align-items: center; gap: 10px;
}
.content-area h2::before {
  content: ""; width: 4px; height: 24px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: 2px;
}
.content-area p { font-size: 15px; color: var(--gray-600); line-height: 2; margin-bottom: 16px; }
@media (max-width: 992px) {
  .main-layout { grid-template-columns: 1fr; gap: 24px; padding-top: 24px; }
  .sidebar { position: static; }
  .content-area { padding: 28px 24px; }
}
@media (max-width: 480px) {
  .content-area { padding: 20px 16px; }
  .content-area h2 { font-size: 20px; }
}

/* ===== 企业简介（首页版） ===== */
.about-section {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(6px);
  padding: 60px 0;
}
.about-grid { display: flex; align-items: center; gap: 48px; flex-wrap: wrap; }
.about-img { flex: 1 1 44%; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.about-img img { width: 100%; height: 320px; object-fit: cover; }
.about-text { flex: 1 1 44%; }
.about-text h4 { font-size: 26px; font-weight: 700; color: var(--gray-800); margin-bottom: 16px; }
.about-text p { font-size: 15px; color: var(--gray-600); line-height: 2; margin-bottom: 18px; }
.about-text .highlight {
  display: inline-block; background: var(--primary-light); color: var(--primary);
  padding: 2px 12px; border-radius: 20px; font-weight: 600;
}
@media (max-width: 768px) {
  .about-section { padding: 40px 0; }
  .about-grid { flex-direction: column; gap: 28px; }
  .about-img, .about-text { flex: 1 1 100%; }
  .about-img img { height: 220px; }
  .about-text h4 { font-size: 22px; }
}

/* ===== 数据统计 ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
  max-width: 1000px;
  margin: 0 auto;
}
@media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; } }
.stat-item .number {
  font-size: 44px; font-weight: 800; color: var(--primary); letter-spacing: -0.5px;
}
.stat-item .number .suffix { font-size: 22px; font-weight: 600; margin-left: 2px; }
.stat-item .label { font-size: 15px; color: var(--gray-600); font-weight: 500; margin-top: 6px; }

/* ===== 核心业务卡片 ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.service-card:hover { transform: translateY(-8px); box-shadow: 0 16px 48px rgba(0, 0, 0, 0.10); }
.service-img { height: 180px; overflow: hidden; background: var(--gray-200); }
.service-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.service-card:hover .service-img img { transform: scale(1.04); }
.service-body { padding: 22px 24px 28px; }
.service-body h4 {
  font-size: 18px; font-weight: 700; color: var(--gray-800); margin-bottom: 12px;
  display: flex; align-items: center; gap: 10px;
}
.service-body h4 i { color: var(--primary); flex-shrink: 0; }
.service-body h4 span { display: flex; flex-direction: column; line-height: 1.4; }
.service-body p { font-size: 14px; color: var(--gray-600); line-height: 1.8; margin-bottom: 16px; }
.service-body .detail-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--primary); font-weight: 600; font-size: 14px;
  transition: gap var(--transition); cursor: pointer;
}
.service-body .detail-link:hover { gap: 12px; }

/* ===== 核心优势 ===== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}
.advantage-item {
  background: var(--white);
  padding: 32px 20px 28px;
  border-radius: var(--radius);
  text-align: center;
  border: 1px solid var(--gray-200);
  transition: transform var(--transition), box-shadow var(--transition);
}
.advantage-item:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.advantage-item .icon-circle {
  width: 64px; height: 64px; margin: 0 auto 16px;
  background: var(--primary-light); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; color: var(--primary);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.advantage-item:hover .icon-circle {
  background: var(--primary); color: var(--white); transform: scale(1.06);
}
.advantage-item h4 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--gray-800); }
.advantage-item p { font-size: 14px; color: var(--gray-600); line-height: 1.8; }

/* ===== 业绩 / 数据卡 ===== */
.performance-sub {
  font-size: 20px; font-weight: 700; color: var(--gray-800);
  margin: 24px 0 20px; padding-left: 16px;
  border-left: 4px solid var(--primary);
  display: flex; align-items: center; gap: 12px;
}
.performance-sub i { color: var(--primary); }
.performance-sub:first-child { margin-top: 0; }
.performance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}
.perf-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}
.perf-card:hover { transform: translateY(-4px); }
.perf-card img { width: 100%; height: 180px; object-fit: cover; background: var(--gray-200); }
.perf-card p {
  padding: 14px 16px; font-size: 13px; color: var(--gray-600);
  text-align: center; font-weight: 500;
  background: var(--gray-100); border-top: 1px solid var(--gray-200);
}
@media (max-width: 480px) {
  .performance-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .perf-card img { height: 130px; }
  .perf-card p { font-size: 12px; padding: 10px; }
}

/* ===== 合作客户 ===== */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);   /* 固定 3 列 */
  gap: 28px;
  align-items: center;
  justify-items: center;
  max-width: 900px;                        /* 限制最大宽度，防止单个卡片太宽 */
  margin: 0 auto;                          /* 居中 */
}

/* 平板：2 列 */
@media (max-width: 768px) {
  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 100%;
  }
}

/* 手机：1 列 */
@media (max-width: 480px) {
  .clients-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}
.client-item {
  width: 100%;
  max-width: 240px;
  padding: 28px 24px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: background 0.35s ease, transform 0.35s ease, box-shadow 0.35s ease;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
}
.client-item:hover {
  background: #049c4a;
  box-shadow: 0 8px 30px rgba(5, 52, 18, 0.5);
  transform: translateY(-6px);
}
.client-item img { width: 100%; height: 90px; object-fit: contain; transition: transform 0.35s ease; }
.client-item:hover img { transform: scale(1.06); }

/* ===== 政策文件 ===== */
.news-list { display: flex; flex-direction: column; gap: 14px; }
.news-item {
  background: var(--white);
  padding: 18px 22px;
  border-radius: 8px;
  border-left: 3px solid var(--primary);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.news-item:hover { transform: translateX(4px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06); }
.news-item h4 { font-size: 15px; font-weight: 600; color: var(--gray-800); }
.news-item h4 a { color: var(--gray-800); transition: color var(--transition); }
.news-item h4 a:hover { color: var(--primary); }
.news-item .meta { font-size: 12px; color: var(--gray-400); margin-top: 6px; }
.news-item .badge {
  display: inline-block; background: var(--primary-light); color: var(--primary);
  font-size: 11px; font-weight: 600; padding: 2px 12px; border-radius: 20px;
  margin-right: 8px;
}
.news-item .summary { font-size: 13px; color: var(--gray-600); margin-top: 8px; padding-left: 4px; }

/* ===== 联系信息 ===== */
.contact-box {
  max-width: 1000px;
  margin: 0 auto;
  background: var(--white);
  padding: 30px 26px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.contact-box h4 {
  font-size: 22px; font-weight: 700; color: var(--gray-800);
  margin-bottom: 16px; display: flex; align-items: center; gap: 10px;
}
.contact-box h4 i { color: var(--primary); }
.contact-lead {
  font-size: 15px; font-weight: 600; color: var(--primary);
  margin: 8px 0 16px; line-height: 1.7;
  display: flex; align-items: flex-start; gap: 8px;
}
.contact-lead i { margin-top: 3px; flex-shrink: 0; }
.contact-methods { display: flex; flex-direction: column; gap: 14px; margin-bottom: 12px; }
.contact-method {
  display: flex; align-items: center; gap: 16px;
  padding: 18px 20px;
  background: linear-gradient(135deg, var(--primary-light) 0%, rgba(230, 245, 236, 0.4) 100%);
  border-radius: var(--radius);
  border: 1px solid rgba(21, 115, 54, 0.08);
  transition: all 0.3s ease;
  cursor: pointer;
}
.contact-method:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(21, 115, 54, 0.15);
  border-color: rgba(21, 115, 54, 0.2);
}
.contact-icon {
  width: 48px; height: 48px; flex-shrink: 0;
  background: var(--primary); color: var(--white); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; box-shadow: 0 6px 16px rgba(21, 115, 54, 0.25);
  transition: transform 0.3s ease;
}
.contact-method:hover .contact-icon { transform: scale(1.08); }
.contact-info-text { display: flex; flex-direction: column; line-height: 1.4; }
.contact-label { font-size: 12px; color: var(--gray-600); font-weight: 500; letter-spacing: 0.5px; }
.contact-value { font-size: 18px; font-weight: 700; color: var(--gray-800); letter-spacing: 0.3px; }
.contact-tips {
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 20px;
}
.contact-tips p {
  font-size: 14px; color: var(--gray-600); line-height: 2;
  display: flex; align-items: center; gap: 10px;
}
.contact-tips p i { color: var(--primary); font-size: 14px; flex-shrink: 0; }
.contact-hint {
  font-size: 13px; color: var(--gray-400); line-height: 1.8;
  text-align: center; padding: 14px 16px;
  background: rgba(21, 115, 54, 0.04);
  border-radius: 10px; border-left: 3px solid var(--primary);
}
.contact-hint strong { color: var(--primary); font-weight: 600; }
@media (max-width: 600px) {
  .contact-box { padding: 28px 20px; }
  .contact-value { font-size: 16px; }
}

/* ===== 页脚 ===== */
.footer {
  background: var(--gray-800);
  color: rgba(255, 255, 255, 0.8);
  padding: 48px 0 20px;
  margin-top: 40px;
}
.footer-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px; padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-item h4 { color: var(--white); font-size: 17px; font-weight: 700; margin-bottom: 14px; }
.footer-item p, .footer-item li { font-size: 14px; line-height: 2; color: rgba(255, 255, 255, 0.65); }
.footer-item .gold { color: var(--gray-300); }
.copyright {
  text-align: center; padding-top: 24px; font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

/* ===== 返回顶部 ===== */
.back-top {
  position: fixed; bottom: 28px; right: 28px;
  width: 46px; height: 46px; background: var(--primary); color: var(--white);
  border: none; border-radius: 50%; font-size: 18px; cursor: pointer;
  box-shadow: 0 6px 24px rgba(21, 115, 54, 0.30);
  transition: all var(--transition); opacity: 0; visibility: hidden;
  transform: translateY(12px);
  display: flex; align-items: center; justify-content: center; z-index: 999;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--primary-dark); transform: translateY(-4px); }
@media (max-width: 600px) {
  .back-top { width: 40px; height: 40px; font-size: 16px; bottom: 16px; right: 16px; }
}

/* ===== 图片灯箱 ===== */
.lightbox {
  display: none; position: fixed; inset: 0; z-index: 9999;
  background: rgba(255, 255, 255, 0.92);
  justify-content: center; align-items: center;
  backdrop-filter: blur(6px); padding: 40px; cursor: pointer;
}
.lightbox.active { display: flex; }
.lightbox-img {
  max-width: 90vw; max-height: 90vh; object-fit: contain;
  border-radius: 8px; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  cursor: default; animation: lightboxFadeIn 0.35s ease;
}
@keyframes lightboxFadeIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}
.lightbox-close {
  position: absolute; top: 24px; right: 32px; font-size: 40px;
  color: white; cursor: pointer; transition: transform 0.3s ease;
  z-index: 10; line-height: 1;
}
.lightbox-close:hover { transform: rotate(90deg); }
@media (max-width: 600px) {
  .lightbox-close { top: 16px; right: 20px; font-size: 32px; }
  .lightbox { padding: 16px; }
}

/* ===== 模态框（业务详情） ===== */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px); z-index: 2000;
  display: none; align-items: center; justify-content: center; padding: 24px;
}
.modal-overlay.active { display: flex; }
.modal-box {
  background: var(--white); border-radius: var(--radius);
  max-width: 720px; width: 100%; max-height: 90vh; overflow-y: auto;
  padding: 36px 40px 32px;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.2);
  position: relative; transform: scale(0.92);
  transition: transform 0.4s ease, opacity 0.4s ease; opacity: 0;
}
.modal-overlay.active .modal-box { transform: scale(1); opacity: 1; }
.modal-close {
  position: absolute; top: 16px; right: 20px; font-size: 28px;
  color: var(--gray-400); cursor: pointer; background: none; border: none;
  transition: color var(--transition), transform var(--transition);
}
.modal-close:hover { color: var(--gray-800); transform: rotate(90deg); }
.modal-img {
  width: 100%; height: 200px; object-fit: cover;
  border-radius: 8px; margin-bottom: 20px; background: var(--gray-200);
}
.modal-box h2 { font-size: 24px; font-weight: 700; color: var(--gray-800); margin-bottom: 16px; }
.modal-box h2 i { color: var(--primary); margin-right: 10px; }
.modal-box p { font-size: 15px; color: var(--gray-600); line-height: 2; margin-bottom: 16px; }
.modal-tag {
  display: inline-block; background: var(--primary-light); color: var(--primary);
  font-size: 13px; font-weight: 600; padding: 4px 16px; border-radius: 20px;
}
@media (max-width: 600px) {
  .modal-box { padding: 24px 20px 28px; }
  .modal-img { height: 150px; }
  .modal-box h2 { font-size: 20px; }
}

/* 通用标题（内页） */
.section-title { text-align: center; padding: 30px 0 20px; }
.section-title h3 { font-size: 26px; font-weight: 700; color: var(--gray-800); }
.section-title .sub { font-size: 14px; color: var(--gray-600); margin-top: 8px; }

/* 淡入动画 */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
/* ===== 售电业绩 - 省份卡片（带图片） ===== */
.province-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0;
  background: var(--white);
}
.province-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: var(--gray-200);
  position: relative;
}
.province-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.province-card:hover .province-img img {
  transform: scale(1.08);
}
.province-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.35) 100%);
  pointer-events: none;
}
.province-info {
  padding: 16px 20px 18px;
  text-align: center;
}
.province-info h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.province-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--gray-800);
  line-height: 1.2;
  margin-bottom: 6px;
}
.province-num span {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-600);
  margin-left: 4px;
}
.province-desc {
  font-size: 13px;
  color: var(--gray-600);
  padding-top: 10px;
  border-top: 1px dashed var(--gray-200);
  margin-top: 4px;
}
/* ===== 售电业绩：一排 3 个 ===== */
.province-grid {
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 992px) {
  .province-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .province-grid {
    grid-template-columns: 1fr;
  }
}
/* ===== 业绩板块顶部大图 ===== */
.performance-banner {
  position: relative;
  width: 100%;
  height: 260px;
  border-radius: var(--radius);
  overflow: hidden;
  margin: 40px 0 30px;
  box-shadow: var(--shadow);
}
.performance-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.8s ease;
}
.performance-banner:hover img {
  transform: scale(1.03);
}
/* 覆盖一层深色渐变遮罩，让文字更清晰 */
.performance-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.65) 0%,
    rgba(0, 0, 0, 0.35) 50%,
    rgba(0, 0, 0, 0.10) 100%
  );
  z-index: 1;
}
.performance-banner-text {
  position: absolute;
  left: 48px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  color: #fff;
  max-width: 620px;
}
.performance-banner-text h3 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}
.performance-banner-text p {
  font-size: 15px;
  color: #ffffff;              /* 纯白，不再变灰 */
  opacity: 1;                   /* 去掉透明度 */
  font-weight: 500;             /* 稍微加粗一点 */
  line-height: 1.7;
  text-shadow:
    0 2px 8px rgba(0, 0, 0, 0.85),
    0 1px 3px rgba(0, 0, 0, 0.9); /* 双层阴影，压住背景 */
  margin: 0;
  letter-spacing: 0.3px;
}

@media (max-width: 768px) {
  .performance-banner {
    height: 200px;
    margin-top: 32px;
  }
  .performance-banner-text {
    left: 24px;
    right: 24px;
    max-width: none;
  }
  .performance-banner-text h3 {
    font-size: 18px;
    margin-bottom: 8px;
  }
  .performance-banner-text p {
    font-size: 13px;
  }
}
@media (max-width: 480px) {
  .performance-banner {
    height: 170px;
  }
  .performance-banner-text h3 {
    font-size: 16px;
  }
  .performance-banner-text p {
    font-size: 12px;
  }
}
/* ===== 售电业绩：未完待续卡片 ===== */
.province-card-more {
  cursor: default;
}
.province-more-bg {
  width: 100%;
  height: 220px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
/* 底部细纹装饰 */
.province-more-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.18) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.12) 0%, transparent 45%);
  pointer-events: none;
}
/* 图标 */
.province-more-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 26px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: transform 0.4s ease;
}
.province-card-more:hover .province-more-icon {
  transform: rotate(15deg) scale(1.08);
}
/* 文字部分微调 */
.province-card-more .province-num {
  font-size: 22px;
  color: var(--primary);
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 4px;
}
.province-card-more .province-num span {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-600);
  margin-left: 6px;
  letter-spacing: 0;
}
.province-card-more .province-desc {
  color: var(--gray-400);
}
.page-banner .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.page-banner h2 { margin-bottom: 0; }
.page-banner .breadcrumb { margin: 0; }
@media (max-width: 600px) {
  .page-banner .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}
/* ===== 核心业务：更多业务卡片 ===== */
.service-card-more {
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}
.service-card-more:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.10);
}
.service-more-bg {
  height: 190px;
  background:
    linear-gradient(135deg, rgba(21, 115, 54, 0.10) 0%, rgba(230, 245, 236, 0.6) 100%),
    repeating-linear-gradient(45deg, transparent 0 12px, rgba(21, 115, 54, 0.04) 12px 13px);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.service-more-bg::before {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(21, 115, 54, 0.12) 0%, transparent 70%);
  animation: pulseMore 3s ease-in-out infinite;
}
@keyframes pulseMore {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.15); opacity: 1; }
}
.service-more-icon {
  position: relative;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--white);
  border: 2px dashed var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 24px;
  box-shadow: 0 6px 16px rgba(21, 115, 54, 0.15);
  transition: transform 0.4s ease, background 0.3s ease, color 0.3s ease;
}
.service-card-more:hover .service-more-icon {
  transform: rotate(90deg) scale(1.08);
  background: var(--primary);
  color: var(--white);
  border-style: solid;
}
.service-card-more .service-body {
  text-align: center;
}
.service-card-more .detail-link {
  justify-content: center;
}
.advantage-item .adv-num {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 42px;
  font-weight: 800;
  color: rgba(21, 115, 54, 0.06);
  line-height: 1;
  letter-spacing: -1px;
  transition: color var(--transition), transform var(--transition);
}
.advantage-item:hover .adv-num {
  color: rgba(21, 115, 54, 0.14);
  transform: scale(1.1);
}
/* ===== 底部 CTA 区块 ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: var(--radius);
  padding: 48px 56px;
  margin: 40px 0 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(21, 115, 54, 0.25);
}
/* 装饰光晕 */
.cta-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.18) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.10) 0%, transparent 70%);
  pointer-events: none;
}
.cta-text {
  position: relative;
  z-index: 1;
  flex: 1 1 400px;
}
.cta-text h3 {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}
.cta-text p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
}
.cta-actions {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: #fff;
  color: var(--primary);
  border-radius: 50px;
  font-size: 16px;
  font-weight: 700;
  transition: all 0.3s ease;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}
.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
  color: var(--primary-dark);
}
.cta-btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s ease;
}
.cta-btn-outline:hover {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
  transform: translateY(-3px);
}
@media (max-width: 768px) {
  .cta-section {
    padding: 32px 24px;
    margin: 32px 0 48px;
  }
  .cta-text h3 { font-size: 20px; }
  .cta-text p { font-size: 14px; }
  .cta-actions { width: 100%; }
  .cta-btn, .cta-btn-outline { width: 100%; justify-content: center; }
}

/* ===== 右下角悬浮联系组件 ===== */
.float-contact {
  position: fixed;
  right: 28px;
  bottom: 96px;
  z-index: 998;
  font-family: inherit;
}
.float-contact-toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 8px 24px rgba(21, 115, 54, 0.35);
  transition: all 0.3s ease;
  position: relative;
}
.float-contact-toggle::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  animation: pulseCta 2s ease-out infinite;
  pointer-events: none;
}
@keyframes pulseCta {
  0% { transform: scale(0.9); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}
.float-contact-toggle:hover {
  transform: scale(1.08);
}
.float-contact-toggle.active {
  transform: rotate(90deg);
  background: var(--gray-800);
}
.float-contact-menu {
  position: absolute;
  right: 0;
  bottom: 70px;
  width: 220px;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
}
.float-contact-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.float-contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--gray-800);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.25s ease;
}
.float-contact-item:hover {
  background: var(--primary-light);
  color: var(--primary);
}
.float-contact-item i {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: all 0.25s ease;
}
.float-contact-item:hover i {
  background: var(--primary);
  color: #fff;
}
.float-contact-item .item-info {
  display: flex;
  flex-direction: column;
  line-height: 1.35;
}
.float-contact-item .item-info small {
  font-size: 11px;
  color: var(--gray-600);
  font-weight: 400;
}
@media (max-width: 600px) {
  .float-contact {
    right: 16px;
    bottom: 76px;
  }
  .float-contact-toggle {
    width: 48px;
    height: 48px;
    font-size: 18px;
  }
  .float-contact-menu {
    width: 200px;
    bottom: 60px;
  }
}
/* ===== 联系表单样式 ===== */
.contact-form-wrap {
  margin: 28px 0 24px;
  padding: 24px 24px 20px;
  background: var(--gray-100);
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
}
.form-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.form-title i { color: var(--primary); }
.contact-form-wrap input,
.contact-form-wrap select,
.contact-form-wrap textarea {
  width: 100%;
  padding: 12px 16px;
  margin-bottom: 12px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.contact-form-wrap input:focus,
.contact-form-wrap select:focus,
.contact-form-wrap textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(21, 115, 54, 0.10);
}
.contact-form-wrap textarea {
  min-height: 90px;
  resize: vertical;
}
.contact-form-wrap button {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  box-shadow: 0 6px 20px rgba(21, 115, 54, 0.25);
  margin-top: 4px;
}
.contact-form-wrap button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}
.contact-form-wrap button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}
.form-success {
  display: none;
  margin-top: 14px;
  padding: 12px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  text-align: center;
  border: 1px solid var(--primary);
}
.form-success i { margin-right: 6px; }
.form-privacy {
  font-size: 12px;
  color: var(--gray-400);
  text-align: center;
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.form-privacy i { color: var(--primary); }