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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  color-scheme: light;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: #f3efe6;
  color: #1c1915;
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans", "Microsoft YaHei", "Noto Sans", sans-serif;
  font-size: 17px;
  line-height: 1.55;
}

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

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

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

ul,
ol {
  margin: 0;
  padding: 0;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid #6d4e1e;
  outline-offset: 3px;
}

.skip {
  position: absolute;
  inset-inline-start: 12px;
  top: -48px;
  z-index: 50;
  background: #fffdf8;
  color: #1c1915;
  padding: 10px 14px;
  border-radius: 10px;
}

.skip:focus {
  top: calc(8px + env(safe-area-inset-top));
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(100% - 32px, 1120px);
  margin-inline: auto;
}

.layout-child {
  min-width: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding-top: env(safe-area-inset-top);
  background: rgba(243, 239, 230, 0.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(228, 217, 200, 0.9);
}

.header-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 64px;
}

.logo {
  margin-inline-end: auto;
  text-decoration: none;
  color: #1c1915;
}

.logo strong {
  display: block;
  font-family: "Palatino Linotype", Palatino, Georgia, "Songti SC", "PMingLiU", "Microsoft YaHei", serif;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
}

.logo small {
  display: block;
  margin-top: 4px;
  color: #6d4e1e;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

html[lang^="zh"] .logo small,
html[lang="ja"] .logo small,
html[lang="ko"] .logo small,
html[lang="ar"] .logo small {
  letter-spacing: 0;
  text-transform: none;
  font-size: 0.78rem;
}

.menu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid #d9cbb6;
  border-radius: 12px;
  background: #fffdf8;
  cursor: pointer;
}

.menu-lines,
.menu-lines::before,
.menu-lines::after {
  display: block;
  width: 16px;
  height: 1.5px;
  background: #1c1915;
  position: relative;
}

.menu-lines::before,
.menu-lines::after {
  content: "";
  position: absolute;
  inset-inline-start: 0;
}

.menu-lines::before {
  top: -5px;
}

.menu-lines::after {
  top: 5px;
}

.site-nav {
  display: none;
  gap: 4px 18px;
}

.site-header.is-open .site-nav {
  display: flex;
  flex-direction: column;
  padding: 4px 0 14px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
  color: #1c1915;
}

.lang-switch select {
  min-height: 44px;
  width: auto;
  max-width: 7.5rem;
  padding: 8px 8px;
  border-radius: 12px;
  border: 1px solid #d9cbb6;
  background: #fffdf8;
  color: #1c1915;
  font-size: 16px;
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  list-style: none;
  margin-bottom: 18px;
}

.trust-strip li {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  color: #3f3a34;
}

.trust-strip li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #8a6428;
  flex: 0 0 auto;
}


.spot {
  display: grid;
  gap: 4px 18px;
  margin-top: 18px;
  padding: 12px 16px;
  border: 1px solid #e4d9c8;
  border-radius: 18px;
  background: #fffdf8;
}

.spot-figures {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  list-style: none;
  margin: 4px 0 0;
}

.spot-figures b {
  display: block;
  font-size: 1.2rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

.spot-figures span,
.spot-status,
.spot-note {
  color: #5c5348;
  font-size: 0.92rem;
}

.cover {
  padding: 8px 0 44px;
}

.cover-grid {
  display: grid;
  gap: 22px;
}

.kicker {
  margin-bottom: 10px;
  color: #6d4e1e;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

html[lang^="zh"] .kicker,
html[lang="ja"] .kicker,
html[lang="ko"] .kicker,
html[lang="ar"] .kicker,
html[lang^="zh"] .eyebrow,
html[lang="ja"] .eyebrow,
html[lang="ko"] .eyebrow,
html[lang="ar"] .eyebrow {
  letter-spacing: 0;
  text-transform: none;
}

h1 {
  font-family: "Palatino Linotype", Palatino, Georgia, "Songti SC", "PMingLiU", "Microsoft YaHei", serif;
  font-size: clamp(2rem, 4.2vw, 3.35rem);
  font-weight: 560;
  letter-spacing: -0.035em;
  line-height: 1.12;
}

.lede {
  margin-top: 16px;
  max-width: 38rem;
  color: #3f3a34;
  font-size: 1.05rem;
  text-wrap: pretty;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  text-decoration: none;
  cursor: pointer;
  font-weight: 680;
  font-size: 16px;
  line-height: 1.2;
}

.btn-primary {
  background: #163028;
  color: #f6f1e8;
}

.btn-primary:hover {
  background: #214838;
}

.btn-ghost {
  background: transparent;
  border-color: #163028;
  color: #163028;
}

.btn-ghost:hover {
  background: rgba(22, 48, 40, 0.06);
}

.fine-note {
  margin-top: 14px;
  max-width: 38rem;
  color: #5c5348;
  font-size: 0.92rem;
}

.cover-plate {
  min-width: 0;
  padding: 12px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 244, 220, 0.08), transparent 28%),
    #163028;
  color: #f6f1e8;
  box-shadow: 0 18px 50px rgba(28, 25, 21, 0.12);
}

.hero-figure {
  margin: 0;
}

.hero-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center 32%;
  border-radius: 18px;
  background: #d9c7a5;
}

.hero-figure figcaption {
  padding: 12px 8px 4px;
  font-size: 0.95rem;
}

.macro-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  list-style: none;
  margin-top: 22px;
}

.macro-row li {
  min-width: 0;
}

.macro-row img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
  border-radius: 16px;
  background: #d9c7a5;
}

.macro-row img.macro-band {
  object-position: center 22%;
}

.macro-row span {
  display: block;
  margin-top: 8px;
  padding-inline: 2px;
  color: #3f3a34;
  font-size: 0.92rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.estimate {
  margin-top: 22px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid #e4d9c8;
  background: #fffdf8;
  color: #1c1915;
}

.estimate h2 {
  font-family: "Palatino Linotype", Palatino, Georgia, "Songti SC", "PMingLiU", "Microsoft YaHei", serif;
  font-size: 1.45rem;
  font-weight: 560;
  letter-spacing: -0.03em;
}

.estimate-grid {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.field {
  display: grid;
  gap: 6px;
  min-width: 0;
  font-size: 0.92rem;
  font-weight: 680;
}

.field input,
.field select,
.field textarea,
.lang-switch select {
  font-size: 16px;
  font-weight: 450;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid #d9cbb6;
  border-radius: 12px;
  background: #fff;
  color: #1c1915;
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.estimate .btn {
  width: 100%;
}

.estimate-output {
  min-height: 1.5em;
  margin-top: 12px;
  font-weight: 680;
}

.disclaimer,
.formula {
  margin-top: 8px;
  color: #5c5348;
  font-size: 0.86rem;
}

.formula strong {
  color: #6d4e1e;
}

.section {
  padding: 56px 0;
}

.section-alt {
  background: #e7dfd1;
}

.section h2,
.block-title {
  font-family: "Palatino Linotype", Palatino, Georgia, "Songti SC", "PMingLiU", "Microsoft YaHei", serif;
  font-size: clamp(1.7rem, 3vw, 2.7rem);
  font-weight: 560;
  letter-spacing: -0.03em;
  line-height: 1.12;
  text-wrap: pretty;
}

.step-list,
.card-grid,
.compare-grid,
.promise-grid {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.step,
.plain-card,
.compare-card,
.promise-card {
  min-width: 0;
  padding: 14px;
  border: 1px solid #e4d9c8;
  border-radius: 18px;
  background: #fffdf8;
}

.step img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 14px;
  background: #e7dfd1;
}

.step-no {
  display: block;
  margin: 12px 0 4px;
  color: #8a6428;
  font-family: "Palatino Linotype", Palatino, Georgia, serif;
  font-size: 0.95rem;
}

.step h3,
.plain-card h3,
.compare-card h3,
.promise-card h3,
.faq-item h3 {
  font-size: 1.15rem;
  line-height: 1.3;
}

.step p,
.plain-card li,
.promise-card p,
.faq-panel p {
  margin-top: 8px;
  color: #3f3a34;
}

.split {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.plain-card ul,
.pack-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
  padding-inline-start: 1.1rem;
}

.price-list {
  display: grid;
  gap: 0;
  margin-top: 22px;
  border-top: 1px solid #d9cbb6;
}

.price-list div {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid #d9cbb6;
}

.price-list dt {
  color: #6d4e1e;
  font-weight: 750;
}

.price-list dd {
  margin: 0;
}

.compare-card dl {
  margin: 14px 0 0;
}

.compare-card dt {
  margin-top: 12px;
  color: #6d4e1e;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

html[lang^="zh"] .compare-card dt,
html[lang="ja"] .compare-card dt,
html[lang="ko"] .compare-card dt,
html[lang="ar"] .compare-card dt {
  letter-spacing: 0;
  text-transform: none;
  font-size: 0.86rem;
}

.compare-card dd {
  margin: 4px 0 0;
}

.compare-card.is-ours {
  background: #163028;
  border-color: #163028;
  color: #f6f1e8;
}

.compare-card.is-ours dt {
  color: #f0d7a6;
}

.compare-card.is-ours dd,
.compare-card.is-ours p {
  color: #f6f1e8;
}

.faq-item {
  border-top: 1px solid #d9cbb6;
}

.faq-item:last-child {
  border-bottom: 1px solid #d9cbb6;
}

.faq-item h3 {
  margin: 0;
}

.faq-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  min-height: 56px;
  padding: 14px 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: start;
  cursor: pointer;
  font-weight: 720;
}

.faq-btn::after {
  content: "+";
  flex: 0 0 auto;
  font-family: "Palatino Linotype", Palatino, Georgia, serif;
  font-size: 1.5rem;
  line-height: 1;
}

.faq-btn[aria-expanded="true"]::after {
  content: "–";
}

.faq-panel {
  padding: 0 0 16px;
}

.faq-panel[hidden] {
  display: none;
}

.kit-panel {
  display: grid;
  gap: 18px;
  padding: 18px;
  border-radius: 24px;
  background: #fffdf8;
  border: 1px solid #e4d9c8;
}

.form-grid {
  display: grid;
  gap: 12px;
}

.field-error {
  margin: 0;
  color: #8d2e2e;
  font-size: 0.86rem;
  font-weight: 650;
}

.field-error:empty {
  display: none;
}

.form-status {
  margin-top: 12px;
  color: #3f3a34;
}

.site-footer {
  padding: 36px 0 calc(28px + env(safe-area-inset-bottom));
  background: #14241c;
  color: #f6f1e8;
}

.footer-grid {
  display: grid;
  gap: 18px;
}

.site-footer a {
  color: #f6f1e8;
}

.site-footer p + p {
  margin-top: 8px;
}

.footer-meta {
  color: #eadcc6;
  font-size: 0.92rem;
}

.sticky-action {
  display: none;
}

@media (min-width: 400px) {
  .logo strong {
    font-size: 1.45rem;
  }

  .lang-switch select {
    max-width: 148px;
  }
}

@media (min-width: 480px) {
  .estimate-grid {
    grid-template-columns: 1fr 1fr;
  }

  .estimate .btn,
  .estimate .span-2 {
    grid-column: 1 / -1;
  }
}

@media (min-width: 768px) {
  .menu-btn {
    display: none;
  }

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

  .site-nav,
  .site-header.is-open .site-nav {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    flex-basis: 100%;
    order: 4;
    padding: 0 0 8px;
  }

  .step-list,
  .split,
  .promise-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .span-2 {
    grid-column: 1 / -1;
  }

  .price-list div {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

  .kit-panel {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: start;
    padding: 28px;
  }
}

@media (min-width: 1024px) {
  .header-bar {
    flex-wrap: nowrap;
  }

  .site-nav,
  .site-header.is-open .site-nav {
    flex-basis: auto;
    order: 0;
    padding: 0;
    margin-inline-end: 8px;
  }

  .cover-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 36px;
    align-items: center;
  }

  .spot {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
  }

  .spot .kicker {
    margin-bottom: 0;
  }

  .spot-figures {
    grid-column: 2;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 0;
  }

  .spot-status,
  .spot-note {
    grid-column: 1 / -1;
  }

  .estimate-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
    align-items: end;
  }

  .estimate .btn {
    grid-column: auto;
    width: auto;
    min-width: 11rem;
  }

  .step-list,
  .promise-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .cover {
    padding-top: 34px;
  }
}

@media (max-width: 767px) {
  .sticky-action {
    display: block;
    position: fixed;
    z-index: 30;
    inset-inline: 0;
    bottom: 0;
    padding: 10px 16px max(10px, env(safe-area-inset-bottom));
    background: rgba(243, 239, 230, 0.94);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border-top: 1px solid #e4d9c8;
  }

  .sticky-action .btn {
    width: 100%;
  }

  .sticky-action.is-hidden {
    display: none;
  }

  body {
    padding-bottom: calc(72px + env(safe-area-inset-bottom));
  }
}

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

  .btn,
  .faq-btn,
  .site-nav a,
  .menu-btn {
    transition: none;
  }
}