/* ============================================================
   TECHLY® — Natural Minimal Template (moban20)
   自然简约风：木绿 + 米白、大图横幅、圆角卡片、数据条
   ============================================================ */

:root {
  --bg: #F5F1E8;
  --paper: #FFFFFF;
  --green: #4A7C59;
  --green-deep: #35613F;
  --green-soft: #E4EDE5;
  --sand: #E8DFCE;
  --ink: #2E2A24;
  --muted: #7A7368;
  --line: #E4DCCB;
  --shadow: 0 8px 26px rgba(74, 124, 89, 0.1);
  --shadow-lg: 0 18px 44px rgba(74, 124, 89, 0.16);
  --radius: 22px;
  --radius-sm: 14px;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--green-deep);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input,
textarea {
  font-family: inherit;
}

::selection {
  background: rgba(74, 124, 89, 0.22);
}

.container {
  width: min(1180px, 92%);
  margin: 0 auto;
}

/* ============================================================
   顶部细条
   ============================================================ */

.leaf-bar {
  background: var(--green);
  color: #EDF4EE;
  text-align: center;
  font-size: 13px;
  padding: 8px 14px;
  letter-spacing: 0.04em;
}

.leaf-bar span {
  color: #DCEBDD;
}

.leaf-bar em {
  font-style: normal;
  color: #FFFFFF;
  font-weight: 700;
}

/* ============================================================
   头部
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 15px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--ink);
  white-space: nowrap;
}

.brand img {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.brand small {
  display: block;
  font-size: 10.5px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-top: 1px;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1.5px solid var(--green);
  color: var(--green-deep);
  font-size: 14px;
  font-weight: 700;
}

.site-nav {
  margin-left: auto;
  display: flex;
  gap: 4px;
}

.site-nav a {
  padding: 9px 16px;
  border-radius: 999px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  transition: background 0.2s ease, color 0.2s ease;
}

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

.site-nav a.active {
  background: var(--green);
  color: #fff;
  box-shadow: 0 4px 14px rgba(74, 124, 89, 0.35);
}

/* ============================================================
   Hero（大图横幅）
   ============================================================ */

.hero {
  position: relative;
}

.hero-banner {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-banner img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(53, 97, 63, 0.78) 0%, rgba(53, 97, 63, 0.45) 55%, rgba(53, 97, 63, 0.1) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  padding: 90px 0;
}

.hero-content .leaf {
  display: inline-block;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  padding: 6px 16px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
}

.hero-content h1 {
  font-size: clamp(30px, 4.4vw, 50px);
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
  margin: 20px 0 16px;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.25);
}

.hero-content h1 .hl {
  color: #DCEBDD;
  position: relative;
}

.hero-content p {
  color: rgba(255, 255, 255, 0.92);
  font-size: 15.5px;
  max-width: 540px;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.2);
}

.hero-content p strong {
  color: #fff;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--light {
  background: #fff;
  color: var(--green-deep);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
}

.btn--ghost-light {
  border: 1.5px solid rgba(255, 255, 255, 0.75);
  color: #fff;
  backdrop-filter: blur(4px);
}

.btn--green {
  background: var(--green);
  color: #fff;
  box-shadow: 0 8px 22px rgba(74, 124, 89, 0.35);
}

.btn--ghost {
  background: #fff;
  color: var(--ink);
  border: 1.5px solid var(--line);
}

/* 底部浮动三卡片 */
.hero-cards {
  position: relative;
  z-index: 2;
  margin-top: -56px;
  padding-bottom: 20px;
}

.hero-cards .grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.float-card {
  background: var(--paper);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
}

.float-card .ic {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--green-soft);
  color: var(--green-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 14px;
}

.float-card h3 {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 6px;
}

.float-card p {
  font-size: 13.5px;
  color: var(--muted);
}

/* ============================================================
   Section
   ============================================================ */

.section {
  padding: 72px 0;
}

.section--paper {
  background: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section--green {
  background: var(--green);
  color: #fff;
}

.section--soft {
  background: var(--green-soft);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 44px;
}

.section-head .eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--green-deep);
  background: var(--green-soft);
  padding: 5px 15px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 800;
  line-height: 1.3;
}

.section-head p {
  color: var(--muted);
  margin-top: 12px;
  font-size: 15px;
}

.section--green .section-head .eyebrow {
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
}

.section--green .section-head p {
  color: #DCEBDD;
}

/* ============================================================
   数据条
   ============================================================ */

.meter-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px 44px;
}

.meter .top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 14.5px;
  font-weight: 700;
  margin-bottom: 8px;
}

.meter .top .v {
  color: var(--green-deep);
  font-size: 17px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.meter .track {
  height: 10px;
  background: #EAE4D7;
  border-radius: 999px;
  overflow: hidden;
}

.meter .fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--green), #7BAE8C);
}

.meter .desc {
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 6px;
}

/* ============================================================
   服务卡（自然图标）
   ============================================================ */

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

.svc-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.svc-card .ic {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--green-soft);
  color: var(--green-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
}

.svc-card .no {
  position: absolute;
}

.svc-card h3 {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 8px;
}

.svc-card p {
  font-size: 13.5px;
  color: var(--muted);
}

.svc-card .link {
  display: inline-block;
  margin-top: 14px;
  font-size: 13.5px;
  font-weight: 800;
  color: var(--green-deep);
}

/* ============================================================
   双栏
   ============================================================ */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.split .frame {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.split .frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.split h3 {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 14px;
}

.split p {
  color: var(--muted);
  font-size: 14.5px;
  margin-bottom: 12px;
}

.split p strong {
  color: var(--ink);
}

.ticks li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 9px 0;
  font-size: 14.5px;
  border-bottom: 1px dashed var(--line);
}

.ticks li::before {
  content: "";
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  margin-top: 8px;
}

/* ============================================================
   资讯卡
   ============================================================ */

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

.news-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.news-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.news-body {
  padding: 20px;
}

.news-date {
  font-size: 12px;
  font-weight: 800;
  color: var(--green-deep);
  letter-spacing: 0.08em;
}

.news-body h3 {
  font-size: 16.5px;
  font-weight: 800;
  margin: 8px 0 6px;
  line-height: 1.5;
}

.news-body p {
  font-size: 13.5px;
  color: var(--muted);
}

/* ============================================================
   时间线
   ============================================================ */

.timeline {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  padding-left: 30px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--green), var(--sand));
}

.tl-item {
  position: relative;
  padding: 0 0 26px 22px;
}

.tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--paper);
  border: 4px solid var(--green);
}

.tl-item .d {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--green-deep);
  letter-spacing: 0.08em;
}

.tl-item h3 {
  font-size: 17px;
  font-weight: 800;
  margin: 4px 0;
}

.tl-item p {
  font-size: 14px;
  color: var(--muted);
}

/* ============================================================
   FAQ
   ============================================================ */

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item.open {
  border-color: var(--green);
}

.faq-item button {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  text-align: left;
  font-size: 15.5px;
  font-weight: 700;
}

.faq-item button .ic {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green-deep);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.faq-item.open button .ic {
  transform: rotate(45deg);
  background: var(--green);
  color: #fff;
}

.faq-answer {
  display: none;
  padding: 0 22px 18px;
  color: var(--muted);
  font-size: 14px;
}

.faq-item.open .faq-answer {
  display: block;
}

.faq-answer p {
  margin-bottom: 8px;
}

/* ============================================================
   表单
   ============================================================ */

.contact-form {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  box-shadow: var(--shadow);
}

.field label {
  display: block;
  font-size: 13.5px;
  font-weight: 700;
  margin-bottom: 6px;
}

.field input,
.field textarea {
  width: 100%;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14.5px;
  outline: none;
  transition: border-color 0.2s ease;
  background: #FBFAF6;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--green);
  background: #fff;
}

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

.status-text {
  font-size: 13.5px;
  color: var(--green-deep);
  min-height: 20px;
}

/* ============================================================
   步骤
   ============================================================ */

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.step {
  text-align: center;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 18px;
}

.step .n {
  width: 44px;
  height: 44px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step h3 {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 8px;
}

.step p {
  font-size: 13.5px;
  color: var(--muted);
}

/* ============================================================
   页脚
   ============================================================ */

.site-footer {
  background: #2E4A38;
  color: #CDDCCF;
  padding: 52px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 32px;
}

.site-footer .brand {
  color: #fff;
  margin-bottom: 10px;
}

.site-footer .brand small {
  color: #A8C2AC;
}

.site-footer p {
  font-size: 13.5px;
  color: #A8C2AC;
  max-width: 320px;
}

.site-footer h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 14px;
}

.site-footer li {
  margin-bottom: 9px;
  font-size: 13.5px;
}

.site-footer a {
  color: #A8C2AC;
}

.site-footer a:hover {
  color: #DCEBDD;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: #A8C2AC;
}

/* ============================================================
   页头（内页）
   ============================================================ */

.page-hero {
  background: linear-gradient(135deg, var(--green), var(--green-deep));
  color: #fff;
  padding: 58px 0;
  text-align: center;
}

.page-hero .crumbs {
  font-size: 12.5px;
  color: #CDDCCF;
  margin-bottom: 12px;
}

.page-hero .crumbs a {
  color: #fff;
  font-weight: 700;
}

.page-hero h1 {
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 800;
}

.page-hero p {
  color: #DCEBDD;
  font-size: 15px;
  max-width: 660px;
  margin: 12px auto 0;
}

/* ============================================================
   响应式
   ============================================================ */

@media (max-width: 980px) {
  .hero-cards .grid,
  .meter-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

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

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

@media (max-width: 640px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 10px 16px 16px;
    display: none;
    box-shadow: var(--shadow-lg);
  }

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

  .hero-cards .grid,
  .meter-grid,
  .svc-grid,
  .news-grid,
  .steps,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-banner {
    min-height: 480px;
  }

  .hero-content {
    padding: 70px 0;
  }

  .section {
    padding: 52px 0;
  }
}