:root {
  color-scheme: light;
  --ink: #203332;
  --ink-soft: #526663;
  --teal: #0a6c68;
  --teal-dark: #063f3d;
  --teal-night: #142b2a;
  --mint: #e9f5f1;
  --coral: #e56b5d;
  --yellow: #f1c84a;
  --paper: #ffffff;
  --cloud: #f5f8f7;
  --line: #d7e1de;
  --max: 1180px;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 134px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.7;
}

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

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

.shell {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 8px 12px;
  color: #fff;
  background: var(--teal-dark);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: 76px;
  border-bottom: 1px solid rgba(10, 108, 104, 0.14);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand-link {
  width: 184px;
  flex: 0 0 auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 25px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--teal);
}

.nav-cta,
.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid var(--teal);
  border-radius: var(--radius);
  color: #fff;
  background: var(--teal);
  font-weight: 800;
  text-decoration: none;
  transition: 160ms ease;
}

.nav-cta {
  min-height: 38px;
  padding: 7px 14px;
}

.button:hover,
.button:focus-visible,
.nav-cta:hover,
.nav-cta:focus-visible {
  border-color: var(--teal-dark);
  color: #fff !important;
  background: var(--teal-dark);
}

.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: var(--teal-night);
  isolation: isolate;
}

.hero::before {
  position: absolute;
  inset: -35% -6% auto auto;
  z-index: -1;
  width: 720px;
  aspect-ratio: 1;
  border: 1px solid rgba(241, 200, 74, 0.22);
  border-radius: 50%;
  content: "";
}

.hero::after {
  position: absolute;
  right: 4%;
  bottom: -290px;
  z-index: -1;
  width: 560px;
  aspect-ratio: 1;
  border-radius: 50%;
  content: "";
  background: rgba(10, 108, 104, 0.25);
}

.hero-grid {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  align-items: center;
  gap: 90px;
  padding-top: 90px;
  padding-bottom: 90px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow,
.case-section-dark .eyebrow,
.contact .eyebrow {
  color: var(--yellow);
}

.hero h1 {
  margin: 0;
  font-family: "Songti SC", "STSong", SimSun, serif;
  font-size: clamp(68px, 9vw, 118px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.hero-lead {
  max-width: 720px;
  margin: 34px 0 0;
  color: #c5d6d3;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button-ghost {
  border-color: #718986;
  color: #fff;
  background: transparent;
}

.hero-aside {
  border-top: 1px solid #506461;
}

.hero-stat {
  display: grid;
  grid-template-columns: 116px 1fr;
  align-items: baseline;
  gap: 18px;
  padding: 25px 0;
  border-bottom: 1px solid #506461;
}

.hero-stat strong {
  color: var(--yellow);
  font-family: Georgia, serif;
  font-size: 44px;
  font-weight: 400;
  line-height: 1;
}

.hero-stat span {
  color: #b9cbc7;
  font-size: 14px;
}

.notice {
  padding: 92px 0;
  border-bottom: 1px solid var(--line);
}

.notice-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 90px;
}

.notice h2,
.prepare h2,
.contact h2 {
  margin: 0;
  font-family: "Songti SC", "STSong", SimSun, serif;
  font-size: clamp(38px, 5vw, 62px);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.035em;
}

.notice-copy p {
  margin: 0 0 18px;
  color: var(--ink-soft);
  font-size: 17px;
}

.case-nav {
  position: sticky;
  top: 76px;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(245, 248, 247, 0.96);
  backdrop-filter: blur(12px);
}

.case-nav-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 58px;
  overflow-x: auto;
  scrollbar-width: none;
  white-space: nowrap;
}

.case-nav-inner::-webkit-scrollbar {
  display: none;
}

.case-nav span {
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.case-nav a {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.case-nav a:hover,
.case-nav a:focus-visible {
  color: var(--teal);
}

.case-section {
  padding: 112px 0 120px;
  border-bottom: 1px solid var(--line);
}

.case-section-tint {
  background: var(--cloud);
}

.case-section-dark {
  color: #f7fbfa;
  background: var(--teal-night);
}

.case-heading {
  display: grid;
  grid-template-columns: minmax(120px, 0.25fr) minmax(0, 1fr);
  gap: 52px;
  align-items: start;
}

.case-index {
  display: block;
  padding-top: 9px;
  color: var(--coral);
  font-family: Georgia, serif;
  font-size: 18px;
  font-style: italic;
  font-weight: 700;
}

.case-section-dark .case-index {
  color: var(--yellow);
}

.case-kicker {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.case-section-dark .case-kicker {
  color: var(--yellow);
}

.case-heading h2 {
  margin: 0;
  font-family: "Songti SC", "STSong", SimSun, serif;
  font-size: clamp(44px, 6vw, 76px);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.case-heading div > p:last-child {
  max-width: 820px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 18px;
}

.case-section-dark .case-heading div > p:last-child {
  color: #b9cbc7;
}

.case-insight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 54px 0 46px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.case-section-dark .case-insight-grid {
  border-color: #435856;
}

.case-insight-grid article {
  min-height: 180px;
  padding: 28px 28px 30px 0;
}

.case-insight-grid article + article {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.case-section-dark .case-insight-grid article + article {
  border-color: #435856;
}

.case-insight-grid span {
  display: block;
  margin-bottom: 14px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
}

.case-section-dark .case-insight-grid span {
  color: var(--yellow);
}

.case-insight-grid p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
}

.case-section-dark .case-insight-grid p {
  color: #b9cbc7;
}

.story-gallery {
  display: grid;
  align-items: start;
  gap: 20px;
}

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

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

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

.story-gallery figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.case-section-dark .story-gallery figure {
  border-color: #435856;
  background: #0d201f;
}

.image-button {
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  cursor: zoom-in;
  background: #101413;
}

.story-gallery .image-button {
  height: 520px;
}

.story-gallery img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.story-gallery figcaption {
  min-height: 84px;
  padding: 19px 20px;
  color: var(--ink-soft);
  font-size: 13px;
}

.case-section-dark .story-gallery figcaption {
  color: #b9cbc7;
}

.sensitive-details,
.more-feedback {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.sensitive-details summary,
.more-feedback summary {
  padding: 22px 0;
  color: var(--teal-dark);
  cursor: pointer;
  font-weight: 900;
}

.sensitive-details summary span {
  margin-left: 10px;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 600;
}

.sensitive-details .story-gallery {
  padding: 18px 0 30px;
}

.feedback-wall {
  columns: 3;
  column-gap: 18px;
  padding: 10px 0 36px;
}

.feedback-wall .image-button {
  margin: 0 0 18px;
  break-inside: avoid;
  overflow: hidden;
  border-radius: var(--radius);
}

.feedback-wall img {
  width: 100%;
  height: auto;
}

.case-summary {
  margin-top: 38px;
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 42px rgba(12, 54, 50, 0.06);
}

.case-section-dark .case-summary {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.case-summary-label {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.case-summary h3 {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.6vw, 2.1rem);
  line-height: 1.25;
}

.case-summary p:not(.case-summary-label) {
  max-width: 900px;
  margin: 10px 0 0;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.9;
}

.case-section-dark .case-summary p:not(.case-summary-label) {
  color: #b9cbc7;
}

.feedback-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 38px;
}

.feedback-summary-grid article {
  min-height: 190px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
}

.feedback-summary-grid span {
  display: block;
  margin-bottom: 14px;
  color: var(--teal);
  font-weight: 800;
}

.feedback-summary-grid p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.8;
}

.prepare {
  padding: 110px 0;
  background: var(--mint);
}

.prepare-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 90px;
}

.prepare ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.prepare li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  padding: 24px 0;
  border-top: 1px solid rgba(10, 108, 104, 0.25);
}

.prepare li:last-child {
  border-bottom: 1px solid rgba(10, 108, 104, 0.25);
}

.prepare li > span {
  color: var(--coral);
  font-family: Georgia, serif;
  font-style: italic;
}

.prepare strong {
  font-size: 18px;
}

.prepare li p {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.contact {
  padding: 110px 0;
  color: #fff;
  background: var(--teal);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  align-items: center;
  gap: 100px;
}

.contact p:not(.eyebrow) {
  max-width: 720px;
  margin: 28px 0 30px;
  color: #d5e7e3;
}

.contact .button {
  border-color: #fff;
  color: var(--teal-dark);
  background: #fff;
}

.contact figure {
  margin: 0;
  padding: 16px;
  border-radius: var(--radius);
  background: #fff;
}

.contact figure img {
  width: 100%;
}

.contact figcaption {
  padding: 12px 4px 2px;
  color: var(--ink-soft);
  font-size: 12px;
  text-align: center;
}

.site-footer {
  padding: 56px 0;
  color: #d2e1de;
  background: #0c1d1c;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 38px 64px;
}

.footer-inner strong {
  color: #fff;
  font-size: 18px;
}

.footer-inner p {
  margin: 6px 0 0;
  font-size: 13px;
}

.footer-inner nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 13px;
}

.footer-inner nav a {
  text-decoration: none;
}

.legal {
  grid-column: 1 / -1;
  max-width: 900px;
  padding-top: 28px;
  border-top: 1px solid #304442;
  color: #9fb2ae;
}

.lightbox {
  width: min(94vw, 1120px);
  max-width: none;
  max-height: 92vh;
  margin: auto;
  padding: 54px 18px 18px;
  overflow: auto;
  border: 0;
  border-radius: var(--radius);
  background: #0d1110;
}

.lightbox::backdrop {
  background: rgba(4, 14, 13, 0.88);
  backdrop-filter: blur(6px);
}

.lightbox img {
  width: auto;
  max-width: 100%;
  max-height: calc(92vh - 76px);
  margin: 0 auto;
}

.lightbox-close {
  position: absolute;
  top: 10px;
  right: 14px;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 0;
  color: #fff;
  cursor: pointer;
  background: transparent;
  font-size: 30px;
  line-height: 1;
}

:focus-visible {
  outline: 3px solid rgba(229, 107, 93, 0.55);
  outline-offset: 3px;
}

@media (max-width: 900px) {
  .feedback-summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-nav a:not(.nav-cta) {
    display: none;
  }

  .hero-grid,
  .notice-grid,
  .prepare-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .hero-grid {
    min-height: 0;
    padding-top: 78px;
    padding-bottom: 78px;
  }

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

  .hero-stat {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 20px 18px 20px 0;
  }

  .hero-stat + .hero-stat {
    padding-left: 18px;
    border-left: 1px solid #506461;
  }

  .case-heading {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .case-insight-grid {
    grid-template-columns: 1fr;
  }

  .case-insight-grid article {
    min-height: 0;
    padding: 24px 0;
  }

  .case-insight-grid article + article {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .case-section-dark .case-insight-grid article + article {
    border-color: #435856;
  }

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

  .feedback-wall {
    columns: 2;
  }

  .contact figure {
    width: min(100%, 420px);
  }
}

@media (max-width: 620px) {
  .feedback-summary-grid {
    grid-template-columns: 1fr;
  }

  .feedback-summary-grid article {
    min-height: auto;
  }

  .shell {
    width: min(var(--max), calc(100% - 30px));
  }

  .site-header {
    height: 68px;
  }

  .brand-link {
    width: 154px;
  }

  .nav-cta {
    min-height: 36px;
    padding: 7px 11px;
    font-size: 12px;
  }

  .hero h1 {
    font-size: 64px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-aside {
    grid-template-columns: 1fr;
  }

  .hero-stat,
  .hero-stat + .hero-stat {
    grid-template-columns: 96px 1fr;
    padding: 18px 0;
    border-left: 0;
  }

  .hero-stat strong {
    font-size: 36px;
  }

  .notice,
  .prepare,
  .contact {
    padding: 72px 0;
  }

  .case-nav {
    top: 68px;
  }

  .case-section {
    padding: 78px 0 82px;
  }

  .case-heading h2 {
    font-size: 43px;
  }

  .case-heading div > p:last-child {
    font-size: 16px;
  }

  .gallery-two,
  .gallery-three,
  .gallery-five {
    grid-template-columns: 1fr;
  }

  .story-gallery .image-button {
    height: 500px;
  }

  .feedback-wall {
    columns: 1;
  }

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

  .legal {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}