:root {
  --green: #1f7a5c;
  --green-dark: #14543f;
  --green-light: #e8f3ef;
  --maple: #e2622b;
  --ink: #1c2a26;
  --muted: #5d6b66;
  --bg: #f6f8f7;
  --line: #e3e9e6;
  --white: #fff;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--white);
}

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

a:hover {
  color: var(--green-dark);
}

h1, h2, h3, h4, p {
  margin: 0;
}

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 未填写的配置项 */
.todo {
  color: var(--maple);
}

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
}

.brand:hover {
  color: var(--ink);
}

.brand-mark {
  width: 36px;
  height: 36px;
  flex: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-text strong {
  font-size: 18px;
  letter-spacing: 1px;
}

.brand-text small {
  font-size: 12px;
  color: var(--muted);
}

.site-nav {
  display: flex;
  gap: 6px;
}

.site-nav a {
  padding: 8px 16px;
  border-radius: 6px;
  color: var(--ink);
  font-size: 15px;
}

.site-nav a:hover {
  background: var(--green-light);
  color: var(--green-dark);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0 9px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

/* ===== 首页首屏 ===== */
.hero {
  position: relative;
  overflow: hidden;
  padding: 110px 0 120px;
  color: var(--white);
  background:
    radial-gradient(circle at 85% 20%, rgba(226, 98, 43, 0.280), transparent 42%),
    radial-gradient(circle at 10% 90%, rgba(255, 255, 255, 0.100), transparent 40%),
    linear-gradient(135deg, var(--green-dark), var(--green) 62%, #2f9a76);
}

.hero-tag {
  display: inline-block;
  margin-bottom: 20px;
  padding: 4px 14px;
  border: 1px solid rgba(255, 255, 255, 0.450);
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 1px;
}

.hero h1 {
  max-width: 720px;
  font-size: 46px;
  line-height: 1.3;
  letter-spacing: 2px;
}

.hero p {
  max-width: 640px;
  margin-top: 20px;
  font-size: 17px;
  color: rgba(255, 255, 255, 0.880);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.btn {
  display: inline-block;
  padding: 11px 30px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 15px;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn-primary {
  background: var(--maple);
  color: var(--white);
}

.btn-primary:hover {
  background: #c9521f;
  color: var(--white);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.600);
  color: var(--white);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.140);
  color: var(--white);
}

.btn-outline {
  border-color: var(--green);
  color: var(--green);
}

.btn-outline:hover {
  background: var(--green);
  color: var(--white);
}

/* ===== 内页横幅 ===== */
.page-banner {
  padding: 64px 0;
  color: var(--white);
  background:
    radial-gradient(circle at 88% 10%, rgba(226, 98, 43, 0.250), transparent 45%),
    linear-gradient(135deg, var(--green-dark), var(--green));
}

.page-banner h1 {
  font-size: 34px;
  letter-spacing: 2px;
}

.page-banner p {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.850);
}

/* ===== 通用区块 ===== */
.section {
  padding: 80px 0;
}

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

.section-head {
  margin-bottom: 44px;
  text-align: center;
}

.section-head h2 {
  font-size: 30px;
  letter-spacing: 1px;
}

.section-head h2::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 2px;
  background: var(--maple);
}

.section-head p {
  margin-top: 14px;
  color: var(--muted);
}

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

.prose p + p {
  margin-top: 16px;
}

/* ===== 卡片 ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
}

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

.card:hover {
  transform: translateY(-4px);
  border-color: var(--green);
  box-shadow: 0 12px 28px rgba(20, 84, 63, 0.100);
}

.card-num {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--green);
}

.card h3 {
  margin-bottom: 10px;
  font-size: 19px;
}

.card p {
  font-size: 15px;
  color: var(--muted);
}

/* ===== 首页：关于我们 ===== */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-split h2 {
  margin-bottom: 18px;
  font-size: 30px;
}

.about-split .btn {
  margin-top: 26px;
}

.about-panel {
  padding: 40px 36px;
  border-radius: var(--radius);
  color: var(--white);
  background: linear-gradient(140deg, var(--green), var(--green-dark));
}

.about-panel li {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.180);
}

.about-panel li:last-child {
  border-bottom: 0;
}

.about-panel strong {
  display: block;
  font-size: 18px;
  letter-spacing: 1px;
}

.about-panel span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.820);
}

/* ===== 行动号召 ===== */
.cta {
  padding: 64px 0;
  text-align: center;
  color: var(--white);
  background: linear-gradient(135deg, var(--green-dark), var(--green));
}

.cta h2 {
  font-size: 28px;
}

.cta p {
  margin: 12px 0 28px;
  color: rgba(255, 255, 255, 0.850);
}

/* ===== 关于页：基本信息表 ===== */
.info-table {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  border-collapse: collapse;
  border: 1px solid var(--line);
  background: var(--white);
}

.info-table th,
.info-table td {
  padding: 15px 22px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.info-table tr:last-child th,
.info-table tr:last-child td {
  border-bottom: 0;
}

.info-table th {
  width: 160px;
  font-weight: 600;
  color: var(--ink);
  background: var(--green-light);
}

.info-table td {
  color: var(--muted);
}

.narrow {
  max-width: 820px;
  margin: 0 auto;
}

/* ===== 服务页：服务流程 ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.steps li {
  position: relative;
  padding: 28px 22px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
  text-align: center;
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin: 0 auto 14px;
  border-radius: 50%;
  font-weight: 700;
  color: var(--white);
  background: var(--green);
}

.steps strong {
  display: block;
  margin-bottom: 6px;
  font-size: 17px;
}

.steps span {
  font-size: 14px;
  color: var(--muted);
}

/* ===== 联系页 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 880px;
  margin: 0 auto;
}

.contact-item {
  padding: 28px 26px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--green);
  border-radius: var(--radius);
  background: var(--white);
}

.contact-item h3 {
  margin-bottom: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
}

.contact-item p {
  font-size: 18px;
  word-break: break-all;
}

/* ===== 页脚 ===== */
.site-footer {
  color: rgba(255, 255, 255, 0.720);
  background: #10231d;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.4fr;
  gap: 40px;
  padding-top: 52px;
  padding-bottom: 40px;
}

.site-footer h4 {
  margin-bottom: 14px;
  font-size: 16px;
  color: var(--white);
}

.site-footer li {
  margin-bottom: 6px;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.720);
}

.site-footer a:hover {
  color: var(--white);
}

.footer-bottom {
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.100);
  font-size: 13px;
}

.footer-bottom .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 20px;
}

/* ===== 响应式 ===== */
@media (max-width: 860px) {
  .about-split {
    grid-template-columns: 1fr;
    gap: 36px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 8px 16px 14px;
    background: var(--white);
    border-bottom: 1px solid var(--line);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 12px;
  }

  .hero {
    padding: 72px 0 80px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .page-banner {
    padding: 44px 0;
  }

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

  .section {
    padding: 56px 0;
  }

  .section-head h2,
  .about-split h2 {
    font-size: 25px;
  }

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

  .info-table th {
    width: 110px;
  }

  .info-table th,
  .info-table td {
    padding: 13px 14px;
  }
}

@media (max-width: 480px) {
  .steps {
    grid-template-columns: 1fr;
  }

  .brand-text small {
    display: none;
  }
}