:root {
  --teal-950: #063f3e;
  --teal-900: #075654;
  --teal-800: #08706d;
  --teal-700: #15908b;
  --teal-100: #e6f3ef;
  --teal-50: #f4fbf8;
  --gold: #d99a3f;
  --gold-dark: #c88024;
  --gold-soft: #fff2dd;
  --ink: #153f40;
  --text: #456160;
  --muted: #7b8e8b;
  --line: #dcebe6;
  --paper: #ffffff;
  --soft: #fbfaf7;
  --shadow: 0 18px 46px rgba(17, 80, 77, 0.12);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #fffdf8 0%, #fbfaf7 42%, #ffffff 100%);
  overflow-x: hidden;
}

body,
button,
input,
textarea {
  font: inherit;
}

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

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

h1,
h2,
h3,
p,
figure,
ul,
ol {
  margin: 0;
}

ul,
ol {
  padding: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto auto;
  align-items: center;
  gap: 28px;
  min-height: 88px;
  padding: 0 clamp(22px, 5vw, 72px);
  border-bottom: 1px solid rgba(217, 226, 222, 0.8);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 8px 26px rgba(18, 80, 76, 0.08);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand img {
  width: 58px;
  height: 58px;
  object-fit: contain;
}

.brand span {
  display: grid;
  gap: 3px;
}

.brand strong {
  color: #172b2d;
  font-size: 19px;
  line-height: 1.25;
}

.brand small {
  color: #506967;
  font-size: 13px;
  line-height: 1.3;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 2vw, 32px);
  color: #213b3d;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.nav a {
  position: relative;
  padding: 34px 0 29px;
}

.nav a::after {
  position: absolute;
  right: 0;
  bottom: 20px;
  left: 0;
  height: 3px;
  border-radius: 999px;
  background: transparent;
  content: "";
}

.nav a[aria-current="page"],
.nav a:hover {
  color: var(--teal-800);
}

.nav a[aria-current="page"]::after,
.nav a:hover::after {
  background: var(--teal-800);
}

.nav-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 24px;
  font-weight: 800;
  letter-spacing: 0;
  white-space: nowrap;
}

.nav-cta,
.btn.primary {
  color: #fff;
  background: linear-gradient(180deg, #e4ad59, var(--gold-dark));
  box-shadow: 0 12px 24px rgba(210, 141, 46, 0.28);
}

.btn.ghost {
  border-color: #b8d5cf;
  color: var(--teal-800);
  background: rgba(255, 255, 255, 0.86);
}

main {
  overflow: hidden;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr);
  align-items: center;
  min-height: 530px;
  padding: clamp(46px, 6vw, 86px) clamp(22px, 7vw, 96px) 58px;
  background:
    linear-gradient(90deg, rgba(255, 253, 248, 0.98) 0%, rgba(255, 253, 248, 0.88) 42%, rgba(255, 253, 248, 0.2) 100%),
    radial-gradient(circle at 82% 28%, rgba(168, 215, 207, 0.36), transparent 34%),
    #fffdf8;
}

.hero-copy {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 20px;
  max-width: 620px;
}

.pill {
  width: max-content;
  max-width: 100%;
  min-height: 34px;
  border-radius: 999px;
  padding: 7px 15px;
  color: #9a6d22;
  background: var(--gold-soft);
  font-size: 15px;
  font-weight: 800;
}

h1 {
  color: var(--teal-950);
  font-size: clamp(44px, 5.2vw, 76px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.12;
  max-width: 100%;
  overflow-wrap: break-word;
}

h2 {
  color: var(--teal-900);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.25;
}

h3 {
  color: var(--teal-900);
  font-size: 20px;
  font-weight: 900;
  line-height: 1.35;
}

.hero-copy p:not(.pill),
.section-title p,
.concern-card p,
.service-card p,
.help-grid p,
.process-section p,
.page-points p,
.article-list p,
.faq-card p,
.faq-list p,
.why-section p,
.about-section p,
.split-card p,
.article-detail,
.related-grid p,
.contact-detail p,
.contact-detail li,
.footer-contact,
.observation-section p {
  color: var(--text);
  font-size: 16px;
  line-height: 1.85;
}

.hero-copy > p:not(.pill) {
  max-width: 570px;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 6px;
}

.video-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  color: #24494a;
  font-size: 15px;
  font-weight: 800;
}

.video-link span {
  display: inline-grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid #d8e6e2;
  border-radius: 50%;
  background: #fff;
}

.video-link span::before {
  width: 0;
  height: 0;
  margin-left: 2px;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 8px solid var(--teal-800);
  content: "";
}

.hero-art {
  position: relative;
  z-index: 1;
  align-self: stretch;
  min-height: 420px;
}

.hero-art::before {
  position: absolute;
  inset: 8% 0 4% 8%;
  border-radius: 54% 46% 42% 58%;
  background: linear-gradient(135deg, rgba(173, 218, 210, 0.75), rgba(225, 240, 236, 0.55));
  content: "";
}

.hero-art img {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 430px;
  border-radius: 42% 0 0 42%;
  object-fit: cover;
  object-position: center;
}

.page-points {
  display: none;
}

.section,
.knowledge-layout,
.observe-banner,
.split-card,
.contact-cta,
.contact-detail,
.article-shell {
  width: min(1280px, calc(100% - 80px));
  margin: 54px auto;
}

.section.compact {
  margin-top: 10px;
}

.section-title {
  display: grid;
  gap: 10px;
  margin-bottom: 28px;
}

.section-title.center {
  justify-items: center;
  text-align: center;
}

.section-title h2::after {
  display: block;
  width: 38px;
  height: 4px;
  margin-top: 10px;
  border-radius: 99px;
  background: var(--teal-800);
  content: "";
}

.section-title.center h2::after {
  margin-right: auto;
  margin-left: auto;
}

.concern-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 24px;
}

.concern-card {
  display: grid;
  justify-items: center;
  min-height: 118px;
  gap: 12px;
  border: 1px solid #eadfd0;
  border-radius: 14px;
  padding: 18px 14px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 12px 30px rgba(31, 83, 80, 0.05);
  text-align: center;
}

.concern-card img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.concern-card h3 {
  font-size: 17px;
}

.concern-card p {
  display: none;
  font-size: 13px;
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 42px;
}

.help-grid article {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
}

.help-grid strong {
  color: rgba(211, 150, 70, 0.86);
  font-family: Georgia, serif;
  font-size: 70px;
  font-weight: 400;
  line-height: 1;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 20px;
}

.service-card {
  display: grid;
  min-height: 220px;
  gap: 10px;
  border: 1px solid #eadfd0;
  border-radius: 16px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 34px rgba(31, 83, 80, 0.07);
}

.service-card img {
  width: 100%;
  aspect-ratio: 1.4;
  border-radius: 12px;
  object-fit: cover;
}

.service-card h3 {
  font-size: 18px;
}

.service-card p {
  font-size: 14px;
}

.service-card a,
.article-list a,
.related-grid a {
  color: var(--teal-800);
  font-size: 14px;
  font-weight: 900;
}

.process-section ol {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 12px;
  list-style: none;
}

.process-section li {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 9px;
  text-align: center;
}

.process-section li span {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid #cfe2dc;
  border-radius: 50%;
  color: var(--teal-800);
  background: #f3faf7;
  font-weight: 900;
}

.process-section li:not(:last-child)::after {
  position: absolute;
  top: 29px;
  right: -20px;
  width: 28px;
  border-top: 2px dotted #b8d2cc;
  content: "";
}

.process-section strong {
  color: var(--teal-900);
  font-weight: 900;
}

.process-section p {
  font-size: 13px;
}

.observe-banner {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  border-radius: 18px;
  padding: 24px 48px 22px;
  color: #fff;
  background:
    radial-gradient(circle at 82% 30%, rgba(255, 255, 255, 0.22), transparent 28%),
    linear-gradient(135deg, #88c4bb 0%, #08706d 100%);
  box-shadow: var(--shadow);
}

.observe-banner img {
  max-height: 150px;
  object-fit: contain;
}

.observe-banner h2,
.observe-banner p {
  color: #fff;
}

.contact-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  border: 1px solid rgba(8, 112, 109, 0.14);
  border-radius: 18px;
  padding: 30px 42px;
  background: #f2fbf8;
  box-shadow: var(--shadow-soft);
}

.contact-cta div:first-child {
  display: grid;
  gap: 8px;
}

.contact-cta p {
  max-width: 720px;
  color: var(--muted);
}

.env-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 14px;
}

.env-grid figure {
  overflow: hidden;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(31, 83, 80, 0.08);
  text-align: center;
}

.env-grid img {
  width: 100%;
  height: 132px;
  object-fit: cover;
}

.env-grid figure:first-child img {
  height: 150px;
}

.env-grid figcaption {
  padding: 10px;
  color: var(--teal-900);
  font-weight: 800;
}

.knowledge-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(330px, 0.8fr);
  gap: 38px;
  align-items: start;
}

.article-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.article-list article {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(31, 83, 80, 0.06);
}

.article-list article.featured {
  grid-column: 1 / -1;
  grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1fr);
}

.article-list img {
  width: 100%;
  height: 150px;
  border-radius: 10px;
  object-fit: cover;
}

.article-list article.featured img {
  height: 230px;
}

.article-list div {
  display: grid;
  align-content: center;
  gap: 10px;
}

.article-list span {
  width: max-content;
  border-radius: 999px;
  padding: 5px 12px;
  color: #9a6d22;
  background: var(--gold-soft);
  font-size: 13px;
  font-weight: 800;
}

.faq-card,
.faq-list {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  background: #fff;
  box-shadow: var(--shadow);
}

.faq-card {
  position: relative;
  overflow: hidden;
}

.faq-card > img {
  width: 130px;
  margin: 18px 0 -24px auto;
}

.faq-card details,
.faq-list details {
  border-bottom: 1px solid #e8efec;
  padding: 17px 0;
}

.faq-card details:last-of-type,
.faq-list details:last-of-type {
  border-bottom: 0;
}

.faq-card summary,
.faq-list summary {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--teal-900);
  cursor: pointer;
  font-weight: 900;
  line-height: 1.5;
}

.faq-card summary::after,
.faq-list summary::after {
  display: grid;
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  color: var(--teal-800);
  background: var(--teal-100);
  content: "+";
}

.faq-card p,
.faq-list p {
  margin-top: 10px;
}

.topic-grid,
.related-grid,
.related-articles > div:last-child,
.why-section > div,
.about-section > div,
.observation-section > div,
.domain-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.topic-grid a,
.related-grid article,
.related-articles article,
.why-section article,
.about-section article,
.observation-section article,
.domain-grid span {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(31, 83, 80, 0.06);
}

.topic-grid a {
  position: relative;
  overflow: hidden;
  min-height: 170px;
  color: #fff;
}

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

.topic-grid a::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, rgba(6, 63, 62, 0.82));
  content: "";
}

.topic-grid strong,
.topic-grid span {
  position: relative;
  z-index: 1;
  display: block;
}

.topic-grid span {
  margin-top: 76px;
  font-size: 22px;
  font-weight: 900;
}

.split-card,
.contact-detail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.7fr);
  gap: 30px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 34px;
  background: #fff;
  box-shadow: var(--shadow);
}

.split-card div,
.contact-detail div {
  display: grid;
  gap: 16px;
}

.split-card img,
.contact-detail img {
  width: 100%;
  max-height: 330px;
  border-radius: 14px;
  object-fit: cover;
}

.contact-detail ul {
  display: grid;
  gap: 10px;
  list-style: none;
}

.service-detail-card {
  display: grid;
  width: min(1180px, calc(100% - 80px));
  margin: 54px auto;
  gap: 12px;
  border-radius: 18px;
  padding: 28px;
  background: linear-gradient(135deg, #f7fbfa, #fff);
  box-shadow: var(--shadow);
}

.service-detail-card p {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 18px;
  background: #fff;
}

.service-detail-card strong {
  color: var(--teal-900);
}

.article-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 26px;
  align-items: start;
}

.article-detail {
  display: grid;
  gap: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(24px, 4vw, 42px);
  background: #fff;
  box-shadow: var(--shadow);
}

.article-detail .answer {
  border: 1px solid #bdded8;
  border-radius: 14px;
  padding: 22px;
  color: var(--text);
  background: linear-gradient(135deg, #f0faf8, #fff);
}

.article-detail .answer strong {
  display: block;
  margin-bottom: 8px;
  color: var(--teal-900);
  font-size: 22px;
}

.article-detail h2 {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 26px;
}

.article-detail h2 span {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--teal-800);
  font-size: 16px;
}

.article-detail ul {
  display: grid;
  gap: 10px;
  padding-left: 24px;
}

.article-side {
  position: sticky;
  top: 110px;
  display: grid;
  gap: 20px;
}

.article-side > div {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}

.article-side ol {
  display: grid;
  gap: 14px;
  margin-top: 16px;
  padding-left: 22px;
  color: var(--text);
  line-height: 1.7;
}

.side-consult {
  display: grid;
  gap: 14px;
  border-color: #eccb99 !important;
  background: linear-gradient(180deg, #fffaf1, #fff) !important;
}

.side-consult img {
  width: 150px;
  margin: 0 auto;
}

.related-grid img {
  width: 100%;
  height: 130px;
  border-radius: 10px;
  object-fit: cover;
}

.related-grid article {
  display: grid;
  gap: 10px;
}

.related-articles > div:last-child {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.related-articles article {
  overflow: hidden;
  padding: 0;
}

.related-articles img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.related-articles article > div {
  display: grid;
  gap: 8px;
  padding: 16px;
}

.related-articles strong {
  color: var(--teal-800);
  font-size: 13px;
}

.related-articles h3 {
  font-size: 19px;
  line-height: 1.35;
}

.related-articles p {
  display: -webkit-box;
  min-height: 60px;
  overflow: hidden;
  color: var(--muted);
  font-size: 14px;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.related-articles a {
  color: var(--teal-800);
  font-weight: 700;
}

.footer-contact {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr) 180px;
  gap: 42px;
  align-items: center;
  padding: 42px clamp(22px, 7vw, 92px);
  color: #e9fbf8;
  background: linear-gradient(135deg, #064846, #08706d);
}

.footer-contact > div {
  display: grid;
  gap: 8px;
}

.footer-contact img {
  width: 72px;
  border-radius: 12px;
}

.footer-contact strong {
  color: #fff;
  font-size: 20px;
}

.footer-contact ul {
  display: grid;
  gap: 12px;
  list-style: none;
}

.footer-contact figure {
  display: grid;
  justify-items: center;
  gap: 8px;
}

.footer-contact figure img {
  width: 132px;
  border: 8px solid #fff;
  border-radius: 12px;
}

.footer-bottom {
  display: flex;
  justify-content: center;
  gap: 28px;
  padding: 14px 20px 18px;
  color: rgba(255, 255, 255, 0.74);
  background: #064846;
  font-size: 13px;
}

@media (max-width: 1120px) {
  .site-header {
    grid-template-columns: 1fr auto;
    overflow: hidden;
  }

  .nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
    max-width: 100%;
    min-width: 0;
    overflow-x: auto;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }

  .nav a {
    padding: 8px 0 12px;
  }

  .nav a::after {
    bottom: 5px;
  }

  .hero,
  .knowledge-layout,
  .article-shell,
  .split-card,
  .contact-detail {
    grid-template-columns: 1fr;
  }

  .hero-art {
    min-height: 340px;
  }

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

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

  .process-section li::after {
    display: none;
  }

  .article-side {
    position: static;
  }
}

@media (max-width: 760px) {
  body,
  main,
  .site-header,
  .hero {
    width: 100%;
    max-width: 100vw;
  }

  .site-header {
    grid-template-columns: minmax(0, 1fr);
    min-height: auto;
    padding: 12px 16px;
    gap: 12px;
  }

  .brand,
  .nav,
  .nav-cta {
    width: 100%;
  }

  .brand img {
    width: 46px;
    height: 46px;
  }

  .brand strong {
    font-size: 16px;
  }

  .brand small {
    font-size: 12px;
  }

  .nav-cta {
    min-height: 38px;
    padding: 0 14px;
    font-size: 13px;
  }

  .hero {
    display: block;
    padding: 34px 20px 38px;
    overflow: hidden;
  }

  .hero-copy {
    width: 100%;
    max-width: none;
    min-width: 0;
  }

  .hero-copy p {
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  h1 {
    font-size: 36px;
    line-height: 1.18;
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  h2 {
    font-size: 27px;
  }

  .hero-art img {
    min-height: 280px;
    border-radius: 26px;
  }

  .section,
  .knowledge-layout,
  .observe-banner,
  .split-card,
  .contact-cta,
  .contact-detail,
  .article-shell,
  .service-detail-card {
    width: calc(100% - 32px);
    margin: 34px auto;
  }

  .concern-grid,
  .service-grid,
  .help-grid,
  .topic-grid,
  .related-grid,
  .related-articles > div:last-child,
  .why-section > div,
  .about-section > div,
  .observation-section > div,
  .domain-grid,
  .article-list,
  .footer-contact {
    grid-template-columns: 1fr;
  }

  .help-grid article {
    grid-template-columns: 84px minmax(0, 1fr);
  }

  .help-grid strong {
    font-size: 54px;
  }

  .process-section ol,
  .env-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .observe-banner {
    grid-template-columns: 1fr;
    justify-items: center;
    padding: 24px;
    text-align: center;
  }

  .contact-cta {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .observe-banner img {
    max-height: 120px;
  }

  .article-list article,
  .article-list article.featured,
  .service-detail-card p {
    grid-template-columns: 1fr;
  }

  .article-list img,
  .article-list article.featured img {
    height: 190px;
  }

  .faq-card,
  .faq-list,
  .article-detail {
    padding: 20px;
  }

  .article-detail h2 {
    align-items: flex-start;
    font-size: 23px;
  }

  .footer-contact {
    gap: 24px;
    padding: 34px 22px;
  }

  .footer-bottom {
    flex-wrap: wrap;
    gap: 12px 22px;
  }
}

@media (max-width: 430px) {
  .nav {
    font-size: 13px;
  }

  .pill {
    font-size: 13px;
  }

  h1 {
    font-size: 32px;
  }

  .concern-grid,
  .process-section ol,
  .env-grid {
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
  }
}