:root {
  --ink: #18221d;
  --muted: #607066;
  --line: #dce5df;
  --paper: #ffffff;
  --soft: #f3f7f4;
  --brand: #176b45;
  --brand-strong: #0f5133;
  --accent: #d99d27;
  --danger: #9d2f2f;
  --shadow: 0 18px 48px rgba(24, 34, 29, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.72;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

p,
ul,
ol {
  margin-top: 0;
}

p,
li,
td,
th,
h1,
h2,
h3,
h4,
a {
  overflow-wrap: anywhere;
  word-break: normal;
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-width: 0;
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--brand-strong);
  white-space: nowrap;
}

.brand img {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: 7px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 15px;
  color: #26372e;
}

.site-nav a {
  padding: 24px 0;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--brand);
}

.header-phone {
  display: inline-flex;
  flex: 0 0 auto;
  min-width: 156px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  border: 1px solid rgba(217, 157, 39, 0.55);
  border-radius: var(--radius);
  padding: 6px 12px;
  background: #fff7e3;
  color: #6b4200;
  line-height: 1.16;
  white-space: nowrap;
}

.header-phone span {
  font-size: 12px;
}

.header-phone strong {
  font-size: 18px;
  letter-spacing: 0;
}

.menu-toggle {
  display: none;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--brand-strong);
  font-size: 22px;
}

.btn {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--brand);
  border-radius: var(--radius);
  padding: 10px 18px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  line-height: 1.2;
}

.btn:hover {
  background: var(--brand-strong);
}

.btn.secondary {
  background: #fff;
  color: var(--brand-strong);
}

.btn.secondary:hover {
  background: var(--soft);
}

.hero {
  min-height: 620px;
  display: grid;
  align-items: end;
  position: relative;
  overflow: hidden;
  color: #fff;
  background: #10251a;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(13, 30, 21, 0.88), rgba(13, 30, 21, 0.52) 46%, rgba(13, 30, 21, 0.18)),
    var(--hero-image);
  background-size: cover;
  background-position: center;
}

.hero .container {
  position: relative;
  padding: 118px 0 86px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: #f2d391;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 760px;
  margin: 0 0 20px;
  font-size: clamp(36px, 6vw, 68px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero p {
  max-width: 680px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 18px;
}

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

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 64px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.14);
}

.metric {
  min-height: 104px;
  padding: 18px;
  background: rgba(9, 24, 17, 0.45);
}

.metric strong {
  display: block;
  font-size: 26px;
  line-height: 1.2;
  color: #fff;
}

.metric span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.section {
  padding: 82px 0;
}

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

.section-head {
  max-width: 740px;
  margin-bottom: 34px;
}

.section-head.center {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-head h2,
.page-title h1,
.article h1 {
  margin: 0 0 14px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.18;
  letter-spacing: 0;
}

.section-head p,
.page-title p {
  color: var(--muted);
  font-size: 17px;
}

.grid {
  display: grid;
  gap: 24px;
  min-width: 0;
}

.grid.cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.cols-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  min-width: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 22px rgba(24, 34, 29, 0.06);
}

.card-body {
  padding: 24px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.28;
}

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

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

.feature-list {
  display: grid;
  gap: 14px;
  padding: 0;
  list-style: none;
}

.feature-list li {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 42px;
  align-items: center;
  min-width: 0;
}

.split img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.video-section {
  background: #fff;
}

.company-video-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  gap: 34px;
  align-items: center;
  min-width: 0;
}

.company-video-frame {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0f1f17;
  box-shadow: var(--shadow);
}

.company-video-frame video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: #0f1f17;
}

.company-video-copy h3 {
  margin: 0 0 14px;
  font-size: 26px;
  line-height: 1.24;
}

.company-video-copy p {
  color: var(--muted);
}

.feature-list.compact {
  margin-top: 22px;
}

.feature-list.compact li {
  padding: 12px 14px;
}

.page-hero {
  background: var(--soft);
  border-bottom: 1px solid var(--line);
  padding: 56px 0;
}

.breadcrumb {
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 14px;
}

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

.article-list {
  display: grid;
  gap: 18px;
}

.article-card {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  padding: 18px;
}

.article-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius);
}

.article-card h2 {
  margin: 0 0 8px;
  font-size: 24px;
  line-height: 1.3;
}

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

.article {
  max-width: 840px;
  margin: 0 auto;
}

.article-cover {
  width: 100%;
  margin: 28px 0;
  border-radius: var(--radius);
  aspect-ratio: 16 / 9;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.article-inline-image {
  width: 100%;
  margin: 24px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(24, 34, 29, 0.08);
}

.article-content {
  font-size: 18px;
  max-width: 100%;
}

.article-content h2 {
  margin-top: 36px;
  font-size: 28px;
  line-height: 1.28;
}

.article-content h3 {
  margin-top: 28px;
}

.article-content a {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-content table {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 16px;
  table-layout: fixed;
}

.article-content th,
.article-content td {
  border: 1px solid var(--line);
  padding: 12px;
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

.article-content th {
  background: var(--soft);
}

.cta-band {
  padding: 54px 0;
  background: var(--brand-strong);
  color: #fff;
}

.cta-band .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.cta-band h2 {
  margin: 0 0 8px;
  font-size: 32px;
  line-height: 1.2;
}

.cta-band p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
}

.site-footer {
  padding: 52px 0 28px;
  background: #121d17;
  color: rgba(255, 255, 255, 0.78);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr repeat(4, 1fr);
  gap: 32px;
}

.site-footer h3,
.site-footer h4 {
  margin-top: 0;
  color: #fff;
}

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

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-bottom {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 14px;
}

.notice {
  border-left: 4px solid var(--accent);
  padding: 16px 18px;
  background: #fff8e9;
  color: #4a3a16;
}

@media (max-width: 900px) {
  .header-inner {
    gap: 14px;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    right: 20px;
    top: 72px;
    display: none;
    width: min(320px, calc(100vw - 40px));
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow);
    padding: 8px;
  }

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

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

  .header-phone {
    margin-left: auto;
  }

  .company-video-layout {
    gap: 22px;
  }

  .hero-metrics,
  .grid.cols-4,
  .grid.cols-3,
  .grid.cols-2,
  .split,
  .company-video-layout,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .article-card {
    grid-template-columns: 1fr;
  }

  .cta-band .container {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 28px, 1160px);
  }

  .header-inner {
    min-height: 64px;
    gap: 8px;
  }

  .brand {
    gap: 8px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .menu-toggle {
    width: 38px;
    height: 38px;
    font-size: 20px;
  }

  .site-nav {
    right: 14px;
    top: 64px;
    width: calc(100vw - 28px);
  }

  .hero {
    min-height: auto;
  }

  .hero .container {
    padding: 74px 0 44px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero p,
  .section-head p,
  .page-title p {
    font-size: 16px;
  }

  .hero-metrics {
    margin-top: 36px;
  }

  .metric {
    min-height: auto;
    padding: 16px;
  }

  .metric strong {
    font-size: 22px;
  }

  .section {
    padding: 58px 0;
  }

  .page-hero {
    padding: 42px 0;
  }

  .section-head h2,
  .page-title h1,
  .article h1 {
    font-size: 28px;
  }

  .card-body {
    padding: 20px;
  }

  .card h3,
  .article-card h2 {
    font-size: 21px;
  }

  .article-content {
    font-size: 17px;
  }

  .article-content h2 {
    font-size: 24px;
  }

  .article-content table {
    font-size: 15px;
  }

  .article-content th,
  .article-content td {
    padding: 10px;
  }

  .article-content th:first-child,
  .article-content td:first-child {
    width: 34%;
  }

  .cta-band h2 {
    font-size: 26px;
  }

  .brand span {
    max-width: 96px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .header-phone {
    min-width: 116px;
    padding: 5px 6px;
  }

  .header-phone span {
    display: none;
  }

  .header-phone strong {
    font-size: 15px;
  }
}

@media (max-width: 640px) {
  .header-phone {
    display: none;
  }

  .brand span {
    max-width: 150px;
  }
}

@media (max-width: 360px) {
  .container {
    width: min(100% - 24px, 1160px);
  }

  .header-inner {
    gap: 6px;
  }

  .brand span {
    max-width: 150px;
  }

  .header-phone {
    min-width: 108px;
  }

  .header-phone strong {
    font-size: 14px;
  }

  .menu-toggle {
    width: 36px;
    height: 36px;
  }

  .btn {
    width: 100%;
    flex: 1 1 100%;
    padding-right: 12px;
    padding-left: 12px;
  }
}