.seo-shell {
  min-height: 100vh;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  background: #050507;
  color: #f3f1ed;
  font-family: Georgia, "Times New Roman", "Palatino Linotype", serif;
}

.seo-shell * {
  box-sizing: border-box;
}

.seo-shell .topbar {
  width: 100%;
  margin-left: 0;
  padding: 18px 0;
  background: rgba(5, 5, 7, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.seo-shell .topbar-inner {
  width: min(1280px, calc(100% - 56px));
  min-height: 46px;
}

.seo-shell .brand {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0;
  color: #f3f1ed;
}

.seo-shell .topbar-actions {
  gap: 14px;
}

.seo-shell .topbar-actions a {
  color: #f3f1ed;
  font-size: 14px;
}

.seo-shell .topbar-workspace-link {
  min-height: 42px;
  padding: 0 20px;
  border: 0;
  background: #e86145;
  color: #ffffff !important;
  font-size: 14px;
  font-weight: 800;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: -0.02em;
}

.seo-main {
  width: min(1320px, calc(100% - 56px));
  margin: 0 auto;
  padding: 30px 0 96px;
}

.seo-breadcrumbs {
  width: min(760px, 100%);
  margin: 0 auto 26px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  color: #8b7964;
  font-size: 14px;
}

.seo-breadcrumbs.is-hidden,
.seo-kicker.is-hidden {
  display: none;
}

.seo-breadcrumbs a {
  color: #8b7964;
}

.seo-breadcrumbs strong {
  color: #6a5742;
  font-weight: 600;
}

.seo-hero {
  display: block;
  padding: 26px 0 10px;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.seo-hero-copy {
  width: min(760px, 100%);
  margin: 0 auto;
  text-align: center;
}

.seo-hero.seo-hero-dark {
  padding: 0;
}

.seo-hero-copy.seo-hero-copy-dark {
  width: min(1120px, 100%);
  padding: 30px 34px 38px;
  border-radius: 34px;
  background: #09090c;
  text-align: left;
}

.seo-hero-badge {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  background: rgba(232, 97, 69, 0.18);
  color: #ef7457;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.seo-kicker {
  display: inline-block;
  min-height: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #936f49;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}

.seo-hero-copy h1 {
  margin: 14px 0 18px;
  color: #332619;
  font-size: clamp(46px, 5.6vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.03em;
}

.seo-hero-copy-dark h1 {
  max-width: 11ch;
  margin: 22px 0 0;
  color: #f3f1ed;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(54px, 6.8vw, 92px);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.seo-hero-description {
  max-width: 900px;
  margin: 28px 0 0;
  color: rgba(243, 241, 237, 0.72);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(24px, 2.8vw, 36px);
  line-height: 1.55;
  letter-spacing: -0.02em;
}

.seo-compare-showcase {
  width: min(1040px, 100%);
  margin: 34px auto 0;
  transform: none;
}

.seo-compare-frame {
  position: relative;
  overflow: hidden;
  border-radius: 40px;
  padding: 16px;
  background: #111111;
  box-shadow: 0 26px 70px rgba(16, 12, 8, 0.18);
}

.seo-before-after-viewer {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 30px;
  background: #16110d;
  --compare-position: 48%;
}

.seo-compare-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.seo-compare-after-layer {
  position: absolute;
  inset: 0;
  clip-path: inset(0 0 0 var(--compare-position));
}

.seo-compare-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--compare-position);
  width: 8px;
  transform: translateX(-50%);
  background: #09090c;
  pointer-events: none;
}

.seo-compare-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 108px;
  height: 108px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  border-radius: 999px;
  background: #09090c;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.32);
  transform: translate(-50%, -50%);
}

.seo-compare-handle-arrow {
  color: #f8f1e7;
  font-size: 44px;
  line-height: 1;
  font-family: Arial, Helvetica, sans-serif;
}

.seo-compare-label {
  position: absolute;
  bottom: 26px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 66px;
  padding: 0 34px;
  border-radius: 999px;
  background: rgba(9, 9, 12, 0.92);
  color: #f8f1e7;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  pointer-events: none;
}

.seo-compare-label-before {
  left: 26px;
}

.seo-compare-label-after {
  right: 26px;
}

.seo-compare-range {
  position: absolute;
  inset: 0;
  z-index: 4;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
}

.seo-compare-range:focus-visible + .seo-compare-divider .seo-compare-handle {
  outline: 3px solid rgba(255, 255, 255, 0.45);
  outline-offset: 4px;
}

.seo-compare-caption {
  margin: 18px auto 0;
  text-align: center;
  color: #7c6a57;
  font-size: 15px;
  line-height: 1.65;
}

.seo-actions-hero {
  justify-content: flex-start;
  margin-top: 32px;
}

.seo-shell .btn.btn-accent {
  min-height: 76px;
  padding: 0 34px;
  border: 0;
  background: #e86145;
  color: #fff8ef;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  box-shadow: none;
}

.seo-shell .btn.btn-accent:hover {
  background: #db593d;
}

.seo-hero-note {
  margin: 18px 0 0;
  color: rgba(243, 241, 237, 0.56);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  line-height: 1.5;
}

.seo-case-spotlight {
  margin-top: 22px;
  border-radius: 34px;
  background: #09090c;
}

.seo-case-spotlight-inner {
  width: min(980px, calc(100% - 48px));
  margin: 0 auto;
  padding: 34px 0 38px;
  text-align: center;
}

.seo-case-spotlight h2 {
  margin: 0;
  color: #f3f1ed;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(30px, 3.8vw, 46px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.seo-case-spotlight p {
  max-width: 860px;
  margin: 20px auto 0;
  color: rgba(243, 241, 237, 0.7);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(18px, 2.15vw, 24px);
  line-height: 1.7;
  letter-spacing: -0.02em;
}

.seo-how-it-works {
  margin-top: 26px;
  border-radius: 34px;
  background: #09090c;
}

.seo-how-it-works-inner {
  width: min(980px, calc(100% - 48px));
  margin: 0 auto;
  padding: 42px 0 54px;
  text-align: center;
}

.seo-how-it-works h2 {
  margin: 0;
  color: #f3f1ed;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(42px, 5vw, 64px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}

.seo-how-it-works-steps {
  display: grid;
  gap: 54px;
  margin-top: 46px;
}

.seo-how-step {
  display: grid;
  justify-items: center;
  gap: 18px;
}

.seo-how-step-number {
  width: 90px;
  height: 90px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: #e86145;
  color: #fff8ef;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 32px;
  font-weight: 800;
}

.seo-how-step h3 {
  margin: 0;
  color: #f3f1ed;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(26px, 3.2vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.seo-how-step p {
  max-width: 760px;
  margin: 0;
  color: rgba(243, 241, 237, 0.64);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(20px, 2.5vw, 30px);
  line-height: 1.55;
  letter-spacing: -0.02em;
}

.seo-text-sections {
  margin-top: 26px;
  border-radius: 34px;
  background: #09090c;
}

.seo-text-sections-inner {
  width: min(980px, calc(100% - 48px));
  margin: 0 auto;
  padding: 38px 0 54px;
  display: grid;
  gap: 34px;
}

.seo-text-block {
  display: grid;
  gap: 16px;
}

.seo-text-block h2 {
  margin: 0;
  color: #f3f1ed;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(30px, 3.8vw, 44px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.seo-text-block p {
  margin: 0;
  color: rgba(243, 241, 237, 0.72);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.75;
  letter-spacing: -0.02em;
}

.seo-faq-list {
  display: grid;
  gap: 18px;
}

.seo-faq-entry {
  display: grid;
  gap: 8px;
  padding: 20px 22px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.seo-faq-entry h3 {
  margin: 0;
  color: #f3f1ed;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(21px, 2.2vw, 28px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.03em;
}

.seo-faq-entry p {
  font-size: clamp(17px, 1.85vw, 21px);
}

.seo-hero-copy p,
.seo-section-copy,
.seo-card p,
.seo-callout p,
.seo-side-card p,
.seo-faq-answer,
.seo-guide-list li,
.seo-link-list li,
.seo-meta,
.seo-note,
.seo-figure figcaption,
.seo-cluster-card p,
.seo-cluster-card li,
.seo-intro p {
  color: #5f513f;
  line-height: 1.75;
  font-size: 18px;
}

.seo-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 22px;
  font-size: 15px;
}

.seo-meta span {
  display: inline-flex;
  align-items: center;
  min-height: auto;
  padding: 0;
  border: 0;
  background: transparent;
}

.seo-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 26px;
}

.seo-shell .btn,
.seo-shell .btn.btn-dark,
.seo-shell .btn.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid rgba(120, 98, 72, 0.12);
  background: #80694d;
  color: #fff8ef;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  font-weight: 700;
}

.seo-shell .btn.btn-secondary {
  background: transparent;
  color: #6d573f;
}

.seo-hero-visual {
  position: relative;
  overflow: hidden;
  min-height: 360px;
  margin: 44px auto 0;
  border-radius: 28px;
  background: #ddd3c5;
}

.seo-hero-visual img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.seo-image-strip {
  width: min(1180px, 100%);
  margin: 44px auto 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.seo-image-card {
  overflow: hidden;
  border-radius: 24px;
  background: #d9d0c3;
}

.seo-image-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.seo-grid {
  width: min(1180px, 100%);
  margin: 56px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
}

.seo-content {
  display: grid;
  gap: 42px;
}

.seo-sidebar {
  display: grid;
  gap: 20px;
  align-self: start;
  position: sticky;
  top: 92px;
}

.seo-card,
.seo-callout,
.seo-side-card,
.seo-faq-item,
.seo-figure,
.seo-cluster-card {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.seo-card h2,
.seo-callout h2,
.seo-side-card h3,
.seo-faq-item h3 {
  margin: 0 0 16px;
  color: #302419;
  letter-spacing: -0.03em;
}

.seo-card h2,
.seo-callout h2 {
  font-size: clamp(30px, 4vw, 38px);
  line-height: 1.14;
}

.seo-side-card h3,
.seo-faq-item h3 {
  font-size: 24px;
  line-height: 1.2;
}

.seo-card + .seo-card,
.seo-card + .seo-callout,
.seo-callout + .seo-card,
.seo-card + .seo-figure {
  padding-top: 8px;
}

.seo-guide-list,
.seo-link-list,
.seo-toc {
  margin: 0;
  padding-left: 22px;
  display: grid;
  gap: 10px;
}

.seo-link-list a,
.seo-breadcrumbs a,
.seo-cluster-card a {
  color: #6d573f;
}

.seo-highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.seo-highlight {
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 250, 244, 0.48);
  border: 1px solid rgba(109, 87, 63, 0.14);
}

.seo-highlight strong {
  display: block;
  margin-bottom: 10px;
  color: #2f2419;
  font-size: 20px;
}

.seo-table-wrap {
  overflow-x: auto;
  border-radius: 22px;
  border: 1px solid rgba(109, 87, 63, 0.14);
  background: rgba(255, 250, 244, 0.48);
}

.seo-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
}

.seo-table th,
.seo-table td {
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(109, 87, 63, 0.12);
  color: #5f513f;
  line-height: 1.7;
  font-size: 17px;
}

.seo-table th {
  color: #302419;
  font-size: 15px;
  background: rgba(245, 238, 229, 0.72);
}

.seo-table td strong {
  color: #302419;
}

.seo-promo-banner {
  padding: 28px 30px;
  border-radius: 28px;
  background: rgba(255, 250, 244, 0.56);
  border: 1px solid rgba(109, 87, 63, 0.14);
}

.seo-promo-banner h2 {
  margin: 0 0 12px;
  font-size: clamp(30px, 4vw, 40px);
  line-height: 1.12;
  color: #2f2419;
}

.seo-promo-banner p {
  margin: 0 0 18px;
  color: #5f513f;
  line-height: 1.72;
  font-size: 18px;
}

.seo-page-note {
  width: min(760px, 100%);
  margin: 20px auto 0;
  text-align: center;
  color: #7e6d59;
  font-size: 15px;
  line-height: 1.6;
}

.seo-footer-note {
  margin-top: 14px;
  color: #8b7964;
  font-size: 14px;
  line-height: 1.6;
}

@media (max-width: 980px) {
  .seo-main {
    width: min(100%, calc(100% - 28px));
    padding-top: 22px;
  }

  .seo-compare-showcase {
    width: min(100%, calc(100vw - 28px));
  }

  .seo-compare-frame {
    padding: 10px;
    border-radius: 28px;
  }

  .seo-before-after-viewer {
    border-radius: 22px;
  }

  .seo-compare-divider {
    width: 6px;
  }

  .seo-compare-handle {
    width: 84px;
    height: 84px;
    gap: 8px;
  }

  .seo-compare-handle-arrow {
    font-size: 34px;
  }

  .seo-compare-label {
    min-height: 54px;
    padding: 0 24px;
    font-size: 15px;
  }

  .seo-compare-label-before {
    left: 16px;
  }

  .seo-compare-label-after {
    right: 16px;
  }

  .seo-image-strip,
  .seo-highlights,
  .seo-grid {
    grid-template-columns: 1fr;
  }

  .seo-sidebar {
    position: static;
  }

  .seo-hero-copy h1 {
    font-size: clamp(38px, 10vw, 52px);
  }

  .seo-hero-copy p,
  .seo-section-copy,
  .seo-card p,
  .seo-callout p,
  .seo-side-card p,
  .seo-faq-answer,
  .seo-guide-list li,
  .seo-link-list li,
  .seo-meta {
    font-size: 17px;
  }

  .seo-shell .topbar-inner {
    width: min(100%, calc(100% - 28px));
    min-height: 52px;
  }

  .seo-shell .topbar-actions {
    gap: 10px;
    display: flex !important;
    flex: 0 0 auto;
  }

  .seo-shell .brand {
    font-size: 16px;
  }

  .seo-shell .topbar-workspace-link {
    min-height: 38px;
    padding: 0 12px;
    font-size: 12px;
    white-space: nowrap;
  }

  .seo-hero-copy.seo-hero-copy-dark {
    padding: 22px 18px 26px;
    border-radius: 26px;
  }

  .seo-hero-badge {
    min-height: 38px;
    padding: 0 16px;
    font-size: 12px;
  }

  .seo-hero-copy-dark h1 {
    max-width: none;
    margin-top: 18px;
    font-size: clamp(40px, 10vw, 62px);
  }

  .seo-hero-description {
    margin-top: 20px;
    font-size: clamp(18px, 4vw, 24px);
  }

  .seo-actions-hero {
    margin-top: 22px;
  }

  .seo-shell .btn.btn-accent {
    width: 100%;
    min-height: 62px;
    font-size: 18px;
  }

  .seo-hero-note {
    margin-top: 14px;
    font-size: 16px;
  }

  .seo-how-it-works {
    margin-top: 18px;
    border-radius: 26px;
  }

  .seo-text-sections {
    margin-top: 18px;
    border-radius: 26px;
  }

  .seo-text-sections-inner {
    width: min(100%, calc(100% - 32px));
    padding: 28px 0 36px;
    gap: 28px;
  }

  .seo-text-block {
    gap: 14px;
  }

  .seo-text-block p {
    font-size: clamp(17px, 4.3vw, 20px);
  }

  .seo-faq-list {
    gap: 14px;
  }

  .seo-faq-entry {
    padding: 16px 16px 18px;
    border-radius: 20px;
  }

  .seo-faq-entry h3 {
    font-size: clamp(20px, 5vw, 24px);
  }

  .seo-case-spotlight {
    margin-top: 18px;
    border-radius: 26px;
  }

  .seo-case-spotlight-inner {
    width: min(100%, calc(100% - 32px));
    padding: 26px 0 28px;
  }

  .seo-case-spotlight p {
    margin-top: 16px;
    font-size: clamp(17px, 4.4vw, 21px);
  }

  .seo-how-it-works-inner {
    width: min(100%, calc(100% - 32px));
    padding: 28px 0 34px;
  }

  .seo-how-it-works-steps {
    gap: 42px;
    margin-top: 34px;
  }

  .seo-how-step-number {
    width: 74px;
    height: 74px;
    font-size: 28px;
  }

  .seo-how-step h3 {
    font-size: clamp(22px, 6vw, 32px);
  }

  .seo-how-step p {
    font-size: clamp(18px, 4.6vw, 22px);
  }
}