:root {
  --ink: #151512;
  --muted: #68645c;
  --paper: #f3f0e8;
  --surface: #fbfaf6;
  --line: #ded8ca;
  --charcoal: #171916;
  --charcoal-2: #242520;
  --bronze: #9b7844;
  --bronze-dark: #77572f;
  --sage: #6f8174;
  --shadow: 0 22px 54px rgba(20, 18, 13, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0;
}

body[data-lang="zh"] {
  font-family: Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
  letter-spacing: 0;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 42px;
  color: #fff;
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  color: var(--ink);
  background: rgba(243, 240, 232, 0.94);
  box-shadow: 0 1px 0 rgba(21, 21, 18, 0.1);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.14);
}

.site-header.is-scrolled .brand-mark,
.site-header.is-open .brand-mark {
  border-color: var(--bronze);
  background: var(--charcoal);
}

.brand-name {
  font-size: 0.98rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.9rem;
  font-weight: 750;
}

.site-nav a {
  opacity: 0.86;
}

.site-nav a:hover {
  opacity: 1;
}

.language-switch {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 2px;
  padding: 3px;
  color: inherit;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: 4px;
}

.language-switch button {
  min-width: 42px;
  height: 32px;
  padding: 0 9px;
  color: inherit;
  background: transparent;
  border: 0;
  border-radius: 3px;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 850;
}

.language-switch button.is-active {
  color: var(--ink);
  background: #fff;
}

.site-header.is-scrolled .language-switch,
.site-header.is-open .language-switch {
  background: rgba(255, 255, 255, 0.44);
  border-color: var(--line);
}

.site-header.is-scrolled .language-switch button.is-active,
.site-header.is-open .language-switch button.is-active {
  color: #fff;
  background: var(--charcoal);
}

.nav-cta {
  padding: 11px 14px;
  color: #fff;
  background: var(--bronze);
  border-radius: 4px;
}

.nav-cta:hover {
  background: var(--bronze-dark);
}

.nav-toggle {
  display: none;
}

.hero {
  position: relative;
  height: 90svh;
  min-height: 760px;
  max-height: 980px;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
  background: var(--charcoal);
}

.hero-bg,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-bg {
  object-fit: cover;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(12, 13, 11, 0.88) 0%, rgba(12, 13, 11, 0.62) 44%, rgba(12, 13, 11, 0.18) 100%),
    linear-gradient(0deg, rgba(12, 13, 11, 0.84) 0%, rgba(12, 13, 11, 0.04) 62%);
}

.hero-inner,
.section-grid,
.section-heading,
.risk-grid,
.service-grid,
.make-grid,
.experience-inner,
.experience-lists,
.question-list,
.process-line,
.scenario-grid,
.why-grid,
.contact-inner,
.site-footer {
  width: calc(100% - 64px);
  max-width: 1180px;
  margin: 0 auto;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 132px 0 76px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--bronze);
  font-size: 0.84rem;
  font-weight: 850;
  text-transform: uppercase;
  overflow-wrap: break-word;
}

.hero .eyebrow,
.contact .eyebrow {
  color: #d7b77e;
}

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

h1 {
  max-width: 850px;
  margin-bottom: 24px;
  font-size: 4.7rem;
  line-height: 1.02;
  font-weight: 820;
  overflow-wrap: break-word;
}

.hero-title span {
  display: block;
}

h2 {
  margin-bottom: 22px;
  font-size: 2.72rem;
  line-height: 1.08;
  font-weight: 820;
}

.split-heading span {
  display: block;
}

body[data-lang="zh"] h1 {
  max-width: 880px;
  line-height: 1.08;
}

body[data-lang="zh"] h2 {
  line-height: 1.16;
}

body[data-lang="zh"] .eyebrow {
  text-transform: none;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.08rem;
  line-height: 1.2;
}

p {
  line-height: 1.66;
}

.hero-copy {
  max-width: 760px;
  margin-bottom: 16px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.08rem;
  overflow-wrap: break-word;
}

.hero-copy.secondary {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.74);
}

body[data-lang="zh"] .hero-copy,
body[data-lang="zh"] .hero-copy.secondary {
  max-width: 920px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 18px;
  color: var(--ink);
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 850;
}

.button.primary {
  color: #fff;
  background: var(--bronze);
}

.button.primary:hover {
  background: var(--bronze-dark);
}

.button.ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.58);
  background: rgba(255, 255, 255, 0.06);
}

.button.ghost:hover {
  background: rgba(255, 255, 255, 0.14);
}

.trust-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 860px;
  margin-top: 54px;
}

.trust-tags span {
  padding: 9px 14px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  font-size: 0.86rem;
}

.section {
  padding: 104px 0;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 72px;
  align-items: start;
}

.problem-copy {
  color: var(--muted);
  font-size: 1.06rem;
}

.quote-box {
  margin-top: 0;
  padding: 28px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.quote-box span {
  display: block;
  margin-bottom: 12px;
  color: var(--bronze);
  font-size: 0.82rem;
  font-weight: 850;
  text-transform: uppercase;
}

.quote-box strong {
  display: block;
  max-width: 560px;
  font-size: 1.5rem;
  line-height: 1.28;
}

.risk-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 54px;
}

.risk-grid article {
  min-height: 172px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.risk-grid span {
  display: block;
  margin-bottom: 36px;
  color: var(--bronze);
  font-weight: 850;
}

.risk-grid p {
  margin-bottom: 0;
  color: var(--ink);
  font-weight: 680;
}

.services,
.capabilities,
.process {
  background: var(--surface);
}

.section-heading {
  margin-bottom: 42px;
}

.section-heading h2 {
  max-width: 800px;
}

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

.service-grid article,
.question-list article,
.why-grid article {
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.service-grid ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  color: var(--muted);
  list-style: none;
}

.service-grid li,
.why-grid p,
.question-list p,
.process-line p {
  color: var(--muted);
}

.service-grid li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 9px;
  vertical-align: 2px;
  background: var(--bronze);
  border-radius: 50%;
}

.service-feature {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: 36px;
  color: #fff;
  background: var(--charcoal) !important;
  border-color: var(--charcoal) !important;
}

.service-feature p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.76);
}

.make {
  background: var(--paper);
}

.make-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.make-grid article {
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

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

.make-grid div {
  padding: 24px;
}

.make-grid p {
  margin-bottom: 16px;
  color: var(--muted);
}

.make-grid span {
  display: block;
  color: var(--sage);
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.45;
}

.experience {
  color: #fff;
  background: var(--charcoal);
}

.experience-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.72fr);
  gap: 70px;
  align-items: center;
}

.experience-inner p {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.74);
}

.experience-inner img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  border-radius: 8px;
}

.experience-lists {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.experience-lists article {
  padding: 26px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
}

.experience-lists ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 18px;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.55;
}

.experience-lists p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.78);
}

.note-card {
  background: rgba(155, 120, 68, 0.18) !important;
}

.question-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.question-list article {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 28px;
  align-items: start;
}

.question-list p {
  margin-bottom: 0;
}

.process-line {
  display: grid;
  grid-template-columns: repeat(7, minmax(120px, 1fr));
  gap: 18px;
}

.process-line article {
  --process-color: var(--bronze);
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 16px;
  min-width: 0;
  text-align: center;
}

.process-line article:nth-child(2) {
  --process-color: var(--sage);
}

.process-line article:nth-child(3) {
  --process-color: #b36445;
}

.process-line article:nth-child(4) {
  --process-color: #526f8d;
}

.process-line article:nth-child(5) {
  --process-color: #7a657d;
}

.process-line article:nth-child(6) {
  --process-color: #2d3c36;
}

.process-line article:nth-child(7) {
  --process-color: #bd914a;
}

.process-circle {
  display: grid;
  place-items: center;
  align-content: center;
  width: 150px;
  height: 150px;
  padding: 22px;
  color: #fff;
  background:
    radial-gradient(circle at 35% 28%, rgba(255, 255, 255, 0.24), transparent 32%),
    var(--process-color);
  border: 8px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  box-shadow: 0 16px 34px rgba(20, 18, 13, 0.13);
}

.process-circle span {
  display: block;
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.82rem;
  font-weight: 850;
}

.process-circle h3 {
  max-width: 112px;
  margin-bottom: 0;
  font-size: 0.98rem;
  line-height: 1.16;
  overflow-wrap: break-word;
}

.process-line p {
  max-width: 168px;
  margin: 0 auto;
  font-size: 0.92rem;
  line-height: 1.55;
  text-align: center;
}

.work {
  background: var(--paper);
}

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

.scenario-card {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 0.58fr);
  gap: 0;
  overflow: hidden;
  padding: 0;
  text-align: left;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
}

.scenario-card img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
}

.scenario-card div {
  padding: 28px;
}

.scenario-card p {
  margin-bottom: 12px;
  color: var(--muted);
}

.scenario-card p:last-child {
  margin-bottom: 0;
}

.why {
  background: var(--surface);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.why-grid p {
  margin-bottom: 0;
}

.contact {
  color: #fff;
  background: var(--charcoal);
}

.contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(420px, 0.86fr);
  gap: 70px;
  align-items: start;
}

.contact-inner > div p {
  color: rgba(255, 255, 255, 0.74);
  font-size: 1.06rem;
}

.contact-actions {
  display: grid;
  gap: 10px;
  margin-top: 34px;
}

.contact-actions a,
.contact-actions span {
  padding: 14px 16px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 4px;
}

.brief-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding: 26px;
  color: var(--ink);
  background: var(--surface);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.brief-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 750;
}

.brief-form input,
.brief-form select,
.brief-form textarea {
  width: 100%;
  min-width: 0;
  padding: 12px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  outline: none;
}

.brief-form textarea {
  resize: vertical;
}

.brief-form input:focus,
.brief-form select:focus,
.brief-form textarea:focus {
  border-color: var(--bronze);
  box-shadow: 0 0 0 3px rgba(155, 120, 68, 0.14);
}

.full-field {
  grid-column: 1 / -1;
}

.brief-form .button {
  width: 100%;
  border: 0;
}

.form-note {
  margin: -4px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
  text-align: center;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 30px 0;
  color: var(--muted);
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.site-footer strong {
  color: var(--ink);
}

.site-footer a {
  font-weight: 850;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  place-items: center;
  padding: 26px;
  background: rgba(17, 18, 15, 0.9);
}

.lightbox.is-active {
  display: grid;
}

.lightbox figure {
  width: min(1100px, 100%);
  margin: 0;
}

.lightbox img {
  width: 100%;
  max-height: 78vh;
  object-fit: contain;
  background: #000;
  border-radius: 8px;
}

.lightbox figcaption {
  padding-top: 12px;
  color: #fff;
  font-weight: 850;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 4px;
  cursor: pointer;
}

.lightbox-close::before,
.lightbox-close::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 12px;
  right: 12px;
  height: 2px;
  background: #fff;
}

.lightbox-close::before {
  transform: rotate(45deg);
}

.lightbox-close::after {
  transform: rotate(-45deg);
}

@media (max-width: 1100px) {
  .site-header {
    justify-content: flex-start;
    gap: 12px;
    padding: 14px 24px;
  }

  .language-switch {
    margin-left: auto;
  }

  .nav-toggle {
    position: relative;
    z-index: 61;
    display: grid;
    gap: 6px;
    width: 44px;
    height: 44px;
    padding: 12px;
    color: inherit;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid currentColor;
    border-radius: 4px;
  }

  .nav-toggle span {
    display: block;
    height: 2px;
    background: currentColor;
  }

  .site-nav {
    position: fixed;
    top: 72px;
    left: 24px;
    right: 24px;
    z-index: 60;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 13px 12px;
  }

  .nav-cta {
    color: #fff;
  }

  h1 {
    max-width: 760px;
    font-size: 3.7rem;
  }

  h2 {
    font-size: 2.2rem;
  }

  .risk-grid,
  .service-grid,
  .make-grid,
  .experience-lists,
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-line {
    grid-template-columns: repeat(4, minmax(140px, 1fr));
    gap: 34px 18px;
  }

  .service-feature,
  .experience-inner,
  .contact-inner,
  .section-grid {
    grid-template-columns: 1fr;
  }

  .experience-inner img {
    height: 420px;
  }

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

@media (max-width: 720px) {
  .hero {
    height: auto;
    min-height: 92svh;
    max-height: none;
  }

  .hero-inner,
  .section-grid,
  .section-heading,
  .risk-grid,
  .service-grid,
  .make-grid,
  .experience-inner,
  .experience-lists,
  .question-list,
  .process-line,
  .scenario-grid,
  .why-grid,
  .contact-inner,
  .site-footer {
    width: calc(100% - 32px);
  }

  .hero-inner {
    padding: 112px 0 54px;
  }

  .brand-name {
    display: none;
  }

  .language-switch button {
    min-width: 38px;
    height: 30px;
    padding: 0 8px;
    font-size: 0.75rem;
  }

  h1 {
    font-size: 2.55rem;
  }

  body[data-lang="zh"] h1 {
    font-size: 2.32rem;
    line-height: 1.12;
  }

  h2 {
    font-size: 1.84rem;
  }

  .hero-copy,
  .contact-inner > div p {
    font-size: 1rem;
  }

  .button,
  .hero-actions {
    width: 100%;
  }

  .trust-tags {
    margin-top: 36px;
  }

  .section {
    padding: 72px 0;
  }

  .risk-grid,
  .service-grid,
  .make-grid,
  .experience-lists,
  .question-list,
  .why-grid,
  .brief-form {
    grid-template-columns: 1fr;
  }

  .process-line {
    grid-template-columns: repeat(2, minmax(132px, 1fr));
    gap: 30px 18px;
  }

  .process-circle {
    width: 142px;
    height: 142px;
    padding: 18px;
  }

  .question-list article,
  .scenario-card {
    grid-template-columns: 1fr;
  }

  .scenario-card img {
    min-height: 240px;
  }

  .experience-inner img {
    height: 330px;
  }

  .brief-form {
    padding: 20px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  body[data-lang="zh"] h1,
  body[data-lang="zh"] .hero-copy,
  body[data-lang="zh"] .trust-tags {
    max-width: 340px;
  }

  body[data-lang="zh"] h1 {
    font-size: 2.04rem;
  }
}

@media (max-width: 480px) {
  .hero-inner,
  .section-grid,
  .section-heading,
  .risk-grid,
  .service-grid,
  .make-grid,
  .experience-inner,
  .experience-lists,
  .question-list,
  .process-line,
  .scenario-grid,
  .why-grid,
  .contact-inner,
  .site-footer {
    width: 340px;
    max-width: calc(100% - 32px);
  }

  .hero-inner {
    margin-left: 16px;
    margin-right: auto;
  }

  h1 {
    max-width: 340px;
    font-size: 2.22rem;
    line-height: 1.08;
    overflow-wrap: anywhere;
  }

  body[data-lang="zh"] h1 {
    font-size: 2.04rem;
  }

  .hero-copy,
  .trust-tags {
    max-width: 340px;
  }

  .trust-tags span {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  .process-line {
    gap: 28px 14px;
  }

  .process-circle {
    width: 132px;
    height: 132px;
    border-width: 7px;
  }

  .process-circle h3 {
    max-width: 96px;
    font-size: 0.9rem;
  }

  .process-line p {
    max-width: 142px;
    font-size: 0.88rem;
  }
}