:root {
  /* Official FFFFFF Design palette (方案 2). */
  --color-bg: #FFFFFF;
  --color-text: #2B2B2B;
  --color-text-secondary: #6B6B6B;
  --color-surface: #F8F6F3;
  --color-accent: #C4A484;

  --line: color-mix(in srgb, var(--color-text) 14%, transparent);
  --line-strong: var(--color-accent);
  --max: 1160px;
  --pad: clamp(1.25rem, 4vw, 2.75rem);
  --font: "PingFang TC", "Noto Sans CJK TC", "Noto Sans TC", "Microsoft JhengHei", "Segoe UI", sans-serif;
  --shadow: 0 18px 40px color-mix(in srgb, var(--color-text) 8%, transparent);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: light;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--color-text);
  background:
    radial-gradient(900px 420px at 100% -8%, color-mix(in srgb, var(--color-accent) 18%, transparent), transparent 55%),
    var(--color-bg);
  line-height: 1.7;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--color-accent);
  color: var(--color-text);
}

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

a {
  color: inherit;
  text-underline-offset: 0.22em;
}

a:hover {
  color: var(--color-accent);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: auto;
}

.skip:focus,
.skip:hover {
  left: var(--pad);
  top: var(--pad);
  z-index: 100;
  background: var(--color-accent);
  color: var(--color-text);
  padding: 0.5rem 0.75rem;
  text-decoration: none;
}

.wrap {
  width: min(100% - 2 * var(--pad), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.5rem;
  padding: 0.75rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-text);
}

.logo:hover {
  color: var(--color-text);
}

.logo-mark {
  width: 2rem;
  height: 2rem;
  flex: none;
}

.logo-word {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-word strong {
  font-weight: 650;
  letter-spacing: 0.14em;
  font-size: 0.92rem;
}

.logo-word span {
  color: var(--color-text-secondary);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.05rem;
  align-items: center;
}

.nav a {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: 0.92rem;
}

.nav a:hover {
  color: var(--color-accent);
}

.nav a[aria-current="page"],
.nav a[aria-current="page"]:hover {
  color: var(--color-text);
  box-shadow: inset 0 -1px 0 var(--color-accent);
}

.nav-toggle {
  display: none;
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--line-strong);
  padding: 0.4rem 0.7rem;
  font: inherit;
  cursor: pointer;
}

@media (max-width: 1100px) {
  .nav-toggle {
    display: inline-block;
  }

  .header-inner {
    flex-wrap: wrap;
  }

  .nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    padding: 0.25rem 0 0.85rem;
    gap: 0.7rem;
  }

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

.hero {
  padding: clamp(3.5rem, 9vw, 6.5rem) 0 clamp(2.5rem, 6vw, 4rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: end;
}

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

.kicker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1.15rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

.kicker::before {
  content: "";
  width: 2.25rem;
  height: 2px;
  background: var(--color-accent);
}

h1,
.h1 {
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.08;
  font-weight: 620;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

.en-line {
  margin: 0 0 1rem;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tagline {
  margin: 0 0 1rem;
  color: var(--color-text-secondary);
  font-size: 1.02rem;
  letter-spacing: 0.04em;
}

.lead {
  margin: 0 0 1.75rem;
  max-width: 38rem;
  color: var(--color-text-secondary);
  font-size: 1.08rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.actions .text-link {
  align-self: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.7rem 1.2rem;
  text-decoration: none;
  border: 1px solid transparent;
  font-size: 0.95rem;
  cursor: pointer;
  font: inherit;
}

.btn-primary {
  /* Charcoal on champagne is 6.06:1. White on #C4A484 is 2.34:1. */
  background: var(--color-accent);
  color: var(--color-text);
  border-color: var(--color-accent);
  font-weight: 650;
}

.btn-primary:hover {
  background: color-mix(in srgb, var(--color-accent) 82%, var(--color-text));
  color: var(--color-text);
}

.btn-ghost {
  border-color: var(--color-accent);
  color: var(--color-text);
  background: transparent;
}

.btn-ghost:hover {
  background: color-mix(in srgb, var(--color-accent) 18%, var(--color-bg));
  color: var(--color-text);
}

.frame {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background:
    radial-gradient(90% 80% at 18% 100%, color-mix(in srgb, var(--color-accent) 62%, transparent), transparent 58%),
    radial-gradient(70% 60% at 82% 18%, color-mix(in srgb, var(--color-accent) 32%, transparent), transparent 52%),
    var(--color-bg);
  border: 1px solid color-mix(in srgb, var(--color-accent) 55%, transparent);
  box-shadow: var(--shadow);
}

.frame-wide {
  aspect-ratio: 16 / 9;
}

.frame-label,
.frame-index {
  position: absolute;
  z-index: 1;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.frame-label {
  left: 1rem;
  bottom: 0.9rem;
  color: var(--color-text);
}

.frame-index {
  right: 1rem;
  top: 0.9rem;
  color: var(--color-text-secondary);
}

.frame::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 45%;
  background: linear-gradient(to top, color-mix(in srgb, var(--color-bg) 72%, transparent), transparent);
}

.section {
  padding: clamp(3.2rem, 8vw, 5.5rem) 0;
}

main > section:nth-child(even) {
  background: var(--color-surface);
}

.section-rule {
  border-top: 1px solid var(--line);
}

.section-flush {
  padding-top: 0;
}

.note {
  margin: 1rem 0 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.section-head h2,
.page-title {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  letter-spacing: -0.03em;
  font-weight: 620;
  line-height: 1.2;
}

.eyebrow {
  margin: 0 0 0.4rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.74rem;
}

.muted {
  color: var(--color-text-secondary);
}

.faint {
  color: var(--color-text-secondary);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stats div {
  padding: 1.35rem 1rem 1.45rem 0;
}

.stats div + div {
  padding-left: 1rem;
  border-left: 1px solid var(--line);
}

.stats strong {
  display: block;
  font-size: 1.35rem;
  font-weight: 620;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.stats span {
  color: var(--color-text-secondary);
  font-size: 0.92rem;
}

@media (max-width: 800px) {
  .stats {
    grid-template-columns: 1fr 1fr;
  }

  .stats div:nth-child(3) {
    border-left: 0;
    padding-left: 0;
  }

  .stats div:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }
}

.grid-3,
.grid-2 {
  display: grid;
  gap: 1rem;
}

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

.grid-2 {
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  min-height: 100%;
}

main > section:nth-child(even) .card {
  background: var(--color-bg);
}

.card:hover {
  border-color: var(--color-accent);
  color: inherit;
}

.card-body {
  padding: 1.15rem 1.2rem 1.3rem;
}

.card-body h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 620;
}

.card-body p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.94rem;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.8rem;
  margin-top: 0.75rem;
  color: var(--color-text-secondary);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.service-block {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 1rem 2rem;
}

.service-block:last-child {
  border-bottom: 1px solid var(--line);
}

.service-block h3 {
  margin: 0.2rem 0 0;
  font-size: 1.35rem;
}

.service-block ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--color-text-secondary);
}

.service-block li + li {
  margin-top: 0.35rem;
}

@media (max-width: 720px) {
  .service-block {
    grid-template-columns: 1fr;
  }
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.steps li {
  border-top: 2px solid var(--color-accent);
  padding-top: 0.85rem;
}

.steps span {
  display: block;
  color: var(--color-text-secondary);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.steps strong {
  display: block;
  margin-top: 0.35rem;
  font-weight: 600;
  font-size: 0.98rem;
}

.steps p {
  margin: 0.35rem 0 0;
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  font-weight: 400;
}

@media (max-width: 900px) {
  .steps {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 520px) {
  .steps {
    grid-template-columns: 1fr;
  }
}

.quotes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 720px) {
  .quotes {
    grid-template-columns: 1fr;
  }
}

blockquote {
  margin: 0;
  padding: 1.4rem 1.35rem 1.3rem;
  background: var(--color-surface);
  border-left: 3px solid var(--color-accent);
}

main > section:nth-child(even) blockquote {
  background: var(--color-bg);
}

blockquote p {
  margin: 0;
  font-size: 1.05rem;
}

.page-hero {
  padding: clamp(2.8rem, 7vw, 4.6rem) 0 0.5rem;
}

.prose {
  max-width: 42rem;
}

.prose p {
  margin: 0 0 1rem;
  color: var(--color-text-secondary);
}

.prose p.plain {
  color: var(--color-text);
}

.flow {
  display: grid;
  gap: 0;
}

.flow article {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}

.flow article:last-child {
  border-bottom: 1px solid var(--line);
}

.flow .num {
  color: var(--color-text);
  letter-spacing: 0.08em;
  font-size: 0.9rem;
}

.flow h3 {
  margin: 0 0 0.35rem;
}

.flow p {
  margin: 0;
  color: var(--color-text-secondary);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1.5rem;
}

.filters a {
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 0.35rem 0.7rem;
  color: var(--color-text);
  font-size: 0.88rem;
}

.filters a:hover {
  border-color: var(--color-accent);
  background: color-mix(in srgb, var(--color-accent) 16%, var(--color-bg));
  color: var(--color-text);
}

.group-title {
  margin: 2rem 0 0.9rem;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
}

.spec {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 0.35rem 1rem;
  margin: 1.25rem 0 0;
}

.spec dt {
  color: var(--color-text-secondary);
}

.spec dd {
  margin: 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

@media (max-width: 800px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-links a,
.contact-card {
  display: block;
  border: 1px solid var(--line);
  padding: 0.95rem 1.05rem;
  text-decoration: none;
  margin-bottom: 0.65rem;
  background: var(--color-bg);
}

.contact-links a:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.contact-links small {
  display: block;
  color: var(--color-text-secondary);
  margin-top: 0.15rem;
}

form {
  display: grid;
  gap: 0.85rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.92rem;
}

input,
textarea {
  width: 100%;
  font: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--line);
  padding: 0.75rem 0.8rem;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-secondary);
}

input:-webkit-autofill,
textarea:-webkit-autofill {
  -webkit-text-fill-color: var(--color-text);
  box-shadow: 0 0 0 1000px var(--color-bg) inset;
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

.form-note,
.status {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

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

.article-list li {
  border-top: 1px solid var(--line);
}

.article-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.article-list a {
  display: block;
  padding: 1.15rem 0;
  text-decoration: none;
}

.article-list a:hover h3 {
  color: var(--color-accent);
}

.article-list h3 {
  margin: 0 0 0.3rem;
  font-size: 1.12rem;
}

.article-list p {
  margin: 0;
  color: var(--color-text-secondary);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0 3rem;
  margin-top: 1rem;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.7fr 1.45fr;
  gap: 1.5rem;
}

@media (max-width: 760px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.site-footer strong {
  color: var(--color-text);
  font-weight: 620;
}

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

.site-footer ul {
  list-style: none;
  margin: 0.4rem 0 0;
  padding: 0;
}

.site-footer li + li {
  margin-top: 0.25rem;
}

.legal {
  margin-top: 1.75rem;
  color: var(--color-text-secondary);
  font-size: 0.82rem;
}

.anchor {
  scroll-margin-top: 5.5rem;
}

.copy h3 {
  margin: 1.5rem 0 0.45rem;
  font-size: 1.12rem;
  font-weight: 620;
}

.copy h3:first-child {
  margin-top: 0;
}

.copy p {
  margin: 0 0 0.85rem;
  color: var(--color-text-secondary);
}

.checklist {
  margin: 0 0 1rem;
  padding-left: 1.15rem;
  color: var(--color-text-secondary);
}

.checklist li + li {
  margin-top: 0.4rem;
}

.faq-list article {
  padding: 1.15rem 0;
  border-top: 1px solid var(--line);
}

.faq-list article:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-list h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 620;
}

.faq-list p {
  margin: 0;
  color: var(--color-text-secondary);
}

.table-wrap {
  overflow-x: auto;
}

.compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.compare th,
.compare td {
  text-align: left;
  vertical-align: top;
  padding: 0.85rem 0.9rem;
  border-bottom: 1px solid var(--line);
}

.compare th {
  font-weight: 620;
  color: var(--color-text);
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-bottom: 1.25rem;
}

.geo {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.92rem;
  max-width: 46rem;
}

h2.guidance {
  margin: 0 0 1.5rem;
  max-width: 42rem;
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.7;
  letter-spacing: 0;
}

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