:root {
  --seo-green: #247d60;
  --seo-deep: #153d32;
  --seo-ink: #17342d;
  --seo-muted: #667a74;
  --seo-line: #dce6e1;
  --seo-paper: #fff;
  --seo-warm: #f6f3eb;
}

.seo-home {
  min-height: 100vh;
  margin: 0;
  background: linear-gradient(135deg, #f7f4ec 0%, #eef5f1 62%, #f8f6ef 100%);
  color: var(--seo-ink);
}

.seo-home main {
  max-width: none;
  margin: 0;
  padding: 0;
}

.seo-wrap {
  width: min(1160px, calc(100% - 40px));
  margin: auto;
}

.seo-top {
  display: block;
  height: auto;
  min-height: 0;
  padding: 0;
  top: auto;
  background: rgba(255, 255, 255, .93);
  border-bottom: 1px solid var(--seo-line);
  box-shadow: 0 6px 26px rgba(34, 70, 59, .05);
  position: relative;
  z-index: 5;
}

.seo-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  gap: 24px;
}

.seo-top a {
  padding: 0;
}

.seo-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
}

.seo-brand-mark {
  display: grid;
  place-items: center;
  width: auto;
  min-width: 66px;
  height: 66px;
  padding: 0 16px;
  border-radius: 20px;
  background: var(--seo-green);
  color: #fff;
  box-shadow: 0 8px 22px rgba(36, 125, 96, .2);
  font-size: 16px;
  font-weight: 800;
}

.seo-brand b {
  display: block;
  color: var(--seo-ink);
  font-size: 22px;
  letter-spacing: .01em;
}

.seo-brand small {
  display: block;
  margin-top: 4px;
  color: var(--seo-muted);
  letter-spacing: .04em;
}

.seo-top .seo-links {
  display: flex;
  align-items: center;
  gap: 25px;
  flex-wrap: wrap;
  overflow: visible;
  white-space: normal;
}

.seo-links a {
  color: #345b50;
  text-decoration: none;
  font-weight: 700;
}

.seo-links a:hover {
  color: var(--seo-green);
}

.seo-links .seo-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border: 1px solid var(--seo-green);
  border-radius: 12px;
  background: #fff;
  color: var(--seo-green);
}

.seo-entry-strip {
  background: var(--seo-deep);
  color: #fff;
}

.seo-entry-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 0;
}

.seo-entry-copy {
  display: flex;
  align-items: center;
  gap: 12px;
}

.seo-entry-copy i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #dfb04b;
  box-shadow: 0 0 0 5px rgba(223, 176, 75, .15);
}

.seo-entry-copy b {
  font-size: 16px;
}

.seo-entry-copy span {
  color: #cfe0da;
  font-size: 14px;
}

.seo-entry-button,
.seo-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 800;
  transition: .18s ease;
}

.seo-entry-button {
  padding: 10px 19px;
  border-radius: 10px;
  background: #fff;
  color: var(--seo-deep);
  white-space: nowrap;
}

.seo-entry-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 7px 18px rgba(0, 0, 0, .16);
}

.seo-hero {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 58px;
  align-items: center;
  padding: 76px 0 66px;
}

.seo-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 13px;
  border: 1px solid #cfe0d8;
  border-radius: 999px;
  background: #edf6f1;
  color: var(--seo-green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.seo-kicker::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--seo-green);
}

.seo-hero h1 {
  margin: 21px 0 24px;
  max-width: none;
  font-family: Georgia, "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(40px, 5.4vw, 66px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -.025em;
}

.seo-hero h1 em {
  color: var(--seo-green);
  font-style: normal;
}

.seo-hero p {
  max-width: 690px;
  color: #526a63;
  font-size: 18px;
  line-height: 1.85;
}

.seo-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.seo-actions-center {
  justify-content: center;
}

.seo-cta {
  min-height: 54px;
  padding: 0 27px;
  border: 1px solid var(--seo-green);
  border-radius: 13px;
  background: var(--seo-green);
  color: #fff;
  box-shadow: 0 10px 24px rgba(36, 125, 96, .2);
}

.seo-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(36, 125, 96, .25);
}

.seo-actions .secondary {
  background: #fff;
  color: var(--seo-green);
  box-shadow: none;
}

.seo-practice-cta {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 66px;
  padding: 0 24px;
  border-radius: 15px;
  background: var(--seo-green);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 14px 34px rgba(36, 125, 96, .25);
}

.seo-practice-cta strong {
  display: block;
  font-size: 18px;
}

.seo-practice-cta small {
  display: block;
  margin-top: 2px;
  color: #d8eee6;
  font-weight: 500;
}

.seo-practice-cta em {
  margin-left: 4px;
  font-size: 24px;
  font-style: normal;
}

.seo-trust {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  margin-top: 27px;
  color: #60736d;
  font-size: 14px;
}

.seo-trust span::before {
  content: "✓";
  margin-right: 7px;
  color: var(--seo-green);
  font-weight: 900;
}

.seo-preview {
  position: relative;
  padding: 32px;
  border: 1px solid #d8e3dd;
  border-radius: 28px;
  background: var(--seo-paper);
  box-shadow: 0 24px 65px rgba(30, 66, 55, .13);
}

.seo-preview::before {
  content: "";
  position: absolute;
  left: 0;
  top: 42px;
  bottom: 42px;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: #dfb04b;
}

.seo-preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  padding-bottom: 17px;
  border-bottom: 1px solid #e6ece8;
}

.seo-preview small {
  color: var(--seo-green);
  font-weight: 800;
  letter-spacing: .04em;
}

.seo-preview-count {
  color: #6c7f79;
  font-size: 13px;
}

.seo-preview h2 {
  margin: 22px 0;
  font-family: Georgia, "Noto Serif SC", "Songti SC", serif;
  font-size: 24px;
  line-height: 1.5;
}

.seo-option {
  margin: 10px 0;
  padding: 15px 18px;
  border: 1px solid #dce6e1;
  border-radius: 14px;
  background: #fff;
  color: #526a63;
}

.seo-option.correct {
  border-color: var(--seo-green);
  background: #edf7f2;
  color: #174f3e;
  font-weight: 700;
}

.seo-preview-foot {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-top: 15px;
  color: #6a7c76;
  font-size: 13px;
}

.seo-proof {
  padding: 0 0 72px;
}

.seo-proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  border-radius: 22px;
  background: var(--seo-deep);
  color: #fff;
  box-shadow: 0 18px 42px rgba(21, 61, 50, .16);
}

.seo-proof-item {
  padding: 25px 20px;
  border-right: 1px solid rgba(255, 255, 255, .12);
  text-align: center;
}

.seo-proof-item:last-child {
  border-right: 0;
}

.seo-proof-item b {
  display: block;
  color: #e1f1ea;
  font: 700 31px Georgia, "Times New Roman", serif;
}

.seo-proof-item span {
  display: block;
  margin-top: 6px;
  color: #bfd2ca;
  font-size: 13px;
}

.seo-section {
  padding: 78px 0;
}

.seo-section.alt {
  border-top: 1px solid rgba(220, 230, 225, .8);
  border-bottom: 1px solid rgba(220, 230, 225, .8);
  background: rgba(255, 255, 255, .52);
}

.seo-section h2 {
  margin: 0 0 16px;
  text-align: center;
  font-family: Georgia, "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(30px, 4vw, 44px);
}

.seo-lead {
  max-width: 760px;
  margin: 0 auto 42px;
  color: #62766f;
  text-align: center;
  line-height: 1.75;
}

.seo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.seo-card {
  padding: 28px;
  border: 1px solid #dfe8e3;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(31, 67, 56, .05);
}

.seo-card-icon {
  display: grid;
  place-items: center;
  width: 43px;
  height: 43px;
  margin-bottom: 19px;
  border-radius: 13px;
  background: #eaf4ef;
  color: var(--seo-green);
  font-weight: 900;
}

.seo-card b {
  font-size: 20px;
}

.seo-card p {
  color: #62766f;
  line-height: 1.7;
}

.seo-resource {
  display: grid;
  grid-template-columns: .86fr 1.14fr;
  gap: 22px;
  align-items: stretch;
  margin-top: 34px;
}

.seo-handbook {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 34px;
  border: 1px solid #bdd8cc;
  border-radius: 24px;
  background: linear-gradient(145deg, #fff, #edf7f2);
  box-shadow: 0 14px 34px rgba(31, 67, 56, .07);
}

.seo-handbook small {
  color: var(--seo-green);
  font-weight: 850;
  letter-spacing: .09em;
}

.seo-handbook h3 {
  margin: 14px 0;
  font: 700 30px/1.3 Georgia, "Noto Serif SC", "Songti SC", serif;
}

.seo-handbook p {
  color: #5f746c;
  line-height: 1.75;
}

.seo-handbook a {
  align-self: flex-start;
  margin-top: 17px;
  color: var(--seo-green);
  text-decoration: none;
  font-weight: 850;
}

.seo-plan-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.seo-plan-mini {
  position: relative;
  padding: 27px;
  border: 1px solid #d9e5df;
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(31, 67, 56, .055);
}

.seo-plan-mini.recommended {
  border-color: #73aa94;
  background: var(--seo-deep);
  color: #fff;
}

.seo-plan-mini .badge {
  position: absolute;
  right: 17px;
  top: 15px;
  padding: 5px 9px;
  border-radius: 999px;
  background: #e5b94f;
  color: #173d32;
  font-size: 10px;
  font-weight: 900;
}

.seo-plan-mini h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.seo-plan-mini strong {
  display: block;
  color: var(--seo-green);
  font: 700 38px Georgia, "Times New Roman", serif;
}

.seo-plan-mini.recommended strong {
  color: #e3f2ec;
}

.seo-plan-mini p {
  min-height: 48px;
  color: #657971;
  line-height: 1.55;
}

.seo-plan-mini.recommended p {
  color: #cbded7;
}

.seo-plan-mini a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 12px;
  background: var(--seo-green);
  color: #fff;
  text-decoration: none;
  font-weight: 850;
}

.seo-plan-mini.recommended a {
  background: #fff;
  color: var(--seo-deep);
}

.seo-purchase-note {
  max-width: 850px;
  margin: 24px auto 0;
  padding: 14px 18px;
  border-radius: 14px;
  background: #eef6f2;
  color: #4f6c62;
  text-align: center;
  font-size: 14px;
}

.seo-faq {
  max-width: 850px;
  margin: auto;
}

.seo-faq details {
  margin: 12px 0;
  padding: 19px 22px;
  border: 1px solid #dfe8e3;
  border-radius: 15px;
  background: #fff;
  box-shadow: 0 7px 20px rgba(31, 67, 56, .035);
}

.seo-faq summary {
  cursor: pointer;
  font-weight: 800;
}

.seo-faq p {
  color: #5c716a;
  line-height: 1.7;
}

.seo-bottom {
  margin: 70px auto 55px;
  padding: 56px 25px;
  border-radius: 27px;
  background: var(--seo-deep);
  color: #fff;
  text-align: center;
  box-shadow: 0 22px 48px rgba(21, 61, 50, .18);
}

.seo-bottom h2 {
  margin: 0 0 12px;
  color: #fff;
  font-family: Georgia, "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(30px, 4vw, 43px);
}

.seo-bottom p {
  margin-bottom: 26px;
  color: #d5e4df;
}

.seo-bottom .seo-cta {
  border-color: #fff;
  background: #fff;
  color: var(--seo-deep);
  box-shadow: none;
}

.seo-bottom .seo-cta.secondary {
  border-color: rgba(255, 255, 255, .55);
  background: transparent;
  color: #fff;
}

.seo-footer {
  padding: 0 0 35px;
  color: #6a7c76;
  text-align: center;
  font-size: 14px;
}

@media (max-width: 850px) {
  .seo-wrap {
    width: min(100% - 28px, 1160px);
  }

  .seo-nav {
    min-height: 78px;
  }

  .seo-brand-mark {
    min-width: 54px;
    height: 54px;
    padding: 0 12px;
    border-radius: 16px;
    font-size: 13px;
  }

  .seo-brand b {
    font-size: 18px;
  }

  .seo-brand small,
  .seo-links a:not(.seo-login):not(.seo-lang),
  .seo-entry-copy span {
    display: none;
  }

  .seo-links {
    gap: 12px;
  }

  .seo-links .seo-login {
    padding: 10px 14px;
  }

  .seo-hero {
    grid-template-columns: 1fr;
    gap: 35px;
    padding: 52px 0;
  }

  .seo-hero h1 {
    font-size: clamp(38px, 11vw, 54px);
  }

  .seo-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .seo-practice-cta,
  .seo-cta {
    width: 100%;
  }

  .seo-grid,
  .seo-resource {
    grid-template-columns: 1fr;
  }

  .seo-preview {
    padding: 25px 22px;
  }

  .seo-section {
    padding: 60px 0;
  }

  .seo-bottom {
    margin-top: 55px;
  }

  .seo-proof-grid {
    grid-template-columns: 1fr 1fr;
  }

  .seo-proof-item:nth-child(2) {
    border-right: 0;
  }

  .seo-proof-item:nth-child(-n+2) {
    border-bottom: 1px solid rgba(255, 255, 255, .12);
  }
}

@media (max-width: 560px) {
  .seo-entry-inner {
    align-items: center;
  }

  .seo-entry-copy b {
    font-size: 14px;
  }

  .seo-entry-button {
    padding: 9px 12px;
    font-size: 13px;
  }

  .seo-lang {
    font-size: 14px;
  }

  .seo-links .seo-login {
    display: none;
  }

  .seo-trust {
    display: grid;
    gap: 10px;
  }

  .seo-plan-summary {
    grid-template-columns: 1fr;
  }

  .seo-plan-mini p {
    min-height: 0;
  }

  .seo-proof-item {
    padding: 20px 10px;
  }

  .seo-proof-item b {
    font-size: 25px;
  }
}