:root {
  --ink: #22302d;
  --muted: #60706b;
  --line: #dce5df;
  --paper: #fbfcfa;
  --soft: #eef5f0;
  --brand: #1f7a68;
  --brand-2: #b46f4d;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(34, 48, 45, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

img {
  display: block;
  width: 100%;
  height: auto;
}

picture {
  display: block;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(251, 252, 250, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 220px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: var(--brand);
  color: var(--white);
  font-weight: 700;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 14px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.78fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  min-height: calc(100vh - 68px);
  padding: clamp(34px, 6vw, 72px) clamp(18px, 5vw, 72px);
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--brand);
  font-weight: 700;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(36px, 6vw, 68px);
  line-height: 1.08;
  letter-spacing: 0;
}

h1 span {
  display: block;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.2;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 20px;
  line-height: 1.3;
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  font-weight: 700;
}

.button.primary {
  border-color: var(--brand);
  background: var(--brand);
  color: var(--white);
}

.contact-button {
  gap: 8px;
}

.contact-button strong {
  font-size: 18px;
}

.dianping-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 820px;
  margin: -6px 0 18px;
  padding: 16px 18px;
  border-left: 4px solid var(--brand-2);
  background: #fff8f2;
  overflow-wrap: anywhere;
}

.dianping-callout strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 17px;
}

.dianping-callout p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  overflow-wrap: anywhere;
}

.dianping-callout a {
  flex: 0 0 auto;
  color: var(--brand);
  font-weight: 800;
  white-space: nowrap;
}

.dianping-callout > div {
  min-width: 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  max-width: 820px;
  margin: 0;
}

.trust-grid div,
.service-grid article,
.timeline article,
.notice,
.faq-list details {
  border: 1px solid var(--line);
  background: var(--white);
}

.trust-grid div {
  padding: 14px;
}

dt {
  color: var(--muted);
  font-size: 13px;
}

dd {
  margin: 2px 0 0;
  font-weight: 700;
}

.hero-media {
  margin: 0;
  box-shadow: var(--shadow);
}

.hero-media img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.section {
  padding: clamp(52px, 7vw, 86px) clamp(18px, 5vw, 72px);
}

.section:nth-of-type(even) {
  background: var(--soft);
}

.section-head {
  max-width: 820px;
  margin-bottom: 30px;
}

.section-head p:not(.eyebrow) {
  color: var(--muted);
  font-size: 17px;
}

.verify-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.45fr);
  gap: 22px;
  align-items: start;
}

.info-table {
  border-top: 1px solid var(--line);
  background: var(--white);
}

.info-table div {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 16px;
  padding: 15px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

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

.notice {
  padding: 22px;
}

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

.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.proof-grid figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--white);
}

.proof-grid img {
  max-height: 620px;
  object-fit: contain;
  background: #f6f8f6;
}

.proof-grid figcaption {
  padding: 12px 14px;
  color: var(--muted);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.timeline article,
.service-grid article {
  padding: 22px;
}

.timeline span {
  color: var(--brand-2);
  font-weight: 800;
}

.timeline p,
.service-grid p,
.faq-list p {
  color: var(--muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.gallery figure {
  margin: 0;
  background: var(--white);
  border: 1px solid var(--line);
}

.gallery img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.gallery figcaption {
  padding: 12px 14px;
  color: var(--muted);
}

.faq-list {
  display: grid;
  gap: 10px;
  max-width: 960px;
}

.faq-list details {
  padding: 16px 18px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 800;
}

.faq-list p {
  margin: 10px 0 0;
}

.source-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.source-card {
  display: flex;
  min-height: 260px;
  flex-direction: column;
  padding: 22px;
  border: 1px solid var(--line);
  background: var(--white);
}

.source-card.featured {
  background: #f7fbf8;
  border-color: rgba(31, 122, 104, 0.28);
}

.source-type {
  width: fit-content;
  margin-bottom: 12px;
  padding: 4px 10px;
  background: var(--soft);
  color: var(--brand);
  font-size: 13px;
  font-weight: 800;
}

.source-card p:not(.source-type) {
  color: var(--muted);
}

.source-links {
  display: grid;
  gap: 8px;
  margin-top: auto;
}

.source-card a {
  margin-top: auto;
  color: var(--brand);
  font-weight: 800;
}

.source-links a {
  margin-top: 0;
}

.source-card a::after {
  content: " ↗";
}

.guide-article {
  max-width: 1080px;
  margin: 0 auto;
}

.guide-hero {
  padding: 72px 7vw 28px;
}

.guide-hero h1 {
  max-width: 820px;
  margin: 10px 0 20px;
  font-size: clamp(38px, 6vw, 68px);
  line-height: 1.08;
}

.guide-hero .lead {
  max-width: 820px;
}

.guide-sections {
  display: grid;
  border-top: 1px solid var(--line);
}

.guide-sections article {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 18px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.guide-sections article > span {
  color: var(--accent);
  font-weight: 800;
}

.guide-sections h3 { margin: 0 0 8px; }
.guide-sections p { margin: 0; color: var(--muted); line-height: 1.8; }

.check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  list-style: none;
}

.check-list li {
  padding: 16px 18px 16px 46px;
  border: 1px solid var(--line);
  background: #fff;
  position: relative;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 18px;
  color: var(--accent);
  font-weight: 800;
}

.source-note {
  max-width: 980px;
  margin-top: 18px;
  padding: 22px;
  border: 1px dashed rgba(31, 122, 104, 0.38);
  background: rgba(255, 255, 255, 0.7);
}

.source-note p {
  margin-bottom: 0;
  color: var(--muted);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px clamp(18px, 5vw, 72px);
  background: #17231f;
  color: var(--white);
}

.site-footer p {
  margin: 5px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

@media (max-width: 960px) {
  .hero,
  .verify-layout,
  .proof-grid,
  .timeline,
  .service-grid,
  .gallery,
  .source-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

  .source-card {
    min-height: auto;
  }
}

@media (max-width: 680px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }

  .dianping-callout {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    max-width: 100%;
  }

  .button {
    width: 100%;
  }

  .lead,
  .dianping-callout p {
    word-break: normal;
    overflow-wrap: anywhere;
  }

  .trust-grid,
  .service-grid {
    grid-template-columns: 1fr;
  }

  .info-table div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .guide-hero { padding: 48px 22px 18px; }
  .guide-hero h1 { font-size: 38px; }
  .check-list { grid-template-columns: 1fr; }
}