:root {
  --page-bg: #ffffff;
  --soft-bg: #f7f5f6;
  --text: #171717;
  --muted: #666666;
  --accent: #751d35;
  --accent-deep: #561225;
  --border: #ded9dc;
  --border-dark: #aaa3a7;
  --max-width: 1220px;
  --nav-height: 88px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 10px;
  --transition: 220ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background: var(--page-bg);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

[hidden] {
  display: none !important;
}

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

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

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

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

h1,
h2,
h3 {
  line-height: 1.18;
  letter-spacing: -0.035em;
}

p {
  color: var(--muted);
}

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  color: #fff;
  background: var(--accent);
  transform: translateY(-180%);
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid rgba(117, 29, 53, 0.45);
  outline-offset: 3px;
}

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: var(--nav-height);
  border-bottom: 1px solid rgba(222, 217, 220, 0.92);
  background: rgba(255, 255, 255, 0.98);
}

.nav-shell {
  display: flex;
  width: min(100% - (var(--gutter) * 2), var(--max-width));
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-inline: auto;
}

.brand-link {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 0.9rem;
}

.brand-link img {
  width: 64px;
  height: 64px;
  flex: 0 0 auto;
  object-fit: contain;
}

.brand-link span {
  display: grid;
  min-width: 0;
  line-height: 1.3;
}

.brand-link strong {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
}

.brand-link small {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.92rem;
  font-weight: 650;
}

.site-header nav > a:not(.nav-phone):hover,
.site-header nav > a:not(.nav-phone):focus-visible {
  color: var(--accent);
}

.nav-phone {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0.55rem 1.05rem;
  border-radius: 8px;
  color: #fff;
  background: var(--accent);
}

.nav-phone:hover {
  background: var(--accent-deep);
}

.assessment-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-height) + clamp(4rem, 8vw, 7rem)) 0 clamp(5rem, 8vw, 7.5rem);
}

.hero-watermark {
  position: absolute;
  right: -0.06em;
  bottom: -0.3em;
  color: rgba(117, 29, 53, 0.028);
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(6rem, 15vw, 13rem);
  font-weight: 700;
  letter-spacing: -0.07em;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(330px, 0.65fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 6rem);
}

.eyebrow {
  margin-bottom: 1.1rem;
  color: var(--accent);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero-copy h1 {
  max-width: 820px;
  margin-bottom: 1.8rem;
  font-size: clamp(3rem, 5.3vw, 5.75rem);
  font-weight: 650;
}

.hero-lead {
  max-width: 710px;
  margin-bottom: 2.1rem;
  font-size: clamp(1.05rem, 1.5vw, 1.22rem);
}

.hero-actions,
.result-actions,
.question-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.hero-note {
  margin: 1.2rem 0 0;
  font-size: 0.86rem;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.45rem;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  transition: color var(--transition), background-color var(--transition), border-color var(--transition), transform var(--transition);
}

.button:hover {
  transform: translateY(-2px);
}

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

.button-primary:hover {
  background: var(--accent-deep);
}

.button-secondary {
  border-color: var(--border-dark);
  background: #fff;
}

.button-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.assessment-facts {
  border-top: 1px solid var(--text);
}

.assessment-facts > div {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 0.2rem 0.8rem;
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--border);
}

.assessment-facts span {
  grid-row: span 2;
  color: var(--accent);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
}

.assessment-facts strong {
  font-size: 1rem;
}

.assessment-facts p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.6;
}

.assessment-workspace {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
  background: var(--soft-bg);
  scroll-margin-top: calc(var(--nav-height) + 1rem);
}

.noscript-message,
.assessment-intro,
.question-panel,
.result-panel {
  max-width: 1050px;
  margin-inline: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
}

.noscript-message {
  margin-bottom: 1rem;
  padding: 1rem 1.2rem;
  color: var(--accent-deep);
}

.assessment-intro {
  padding: clamp(2rem, 5vw, 4.5rem);
}

.assessment-intro h2,
.result-summary h2,
.privacy-section h2 {
  margin-bottom: 1.3rem;
  font-size: clamp(2rem, 4vw, 3.7rem);
}

.assessment-intro > p:not(.eyebrow) {
  max-width: 750px;
  font-size: 1.05rem;
}

.intro-notice {
  max-width: 820px;
  margin: 2rem 0;
  padding: 1.2rem 1.3rem;
  border-left: 3px solid var(--accent);
  background: #fbf8f9;
}

.intro-notice p {
  margin: 0.35rem 0 0;
}

.question-panel {
  min-height: 630px;
  padding: clamp(1.5rem, 4vw, 3.5rem);
  scroll-margin-top: calc(var(--nav-height) + 1rem);
}

.progress-copy {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.65rem;
  color: var(--muted);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
}

.progress-track {
  height: 4px;
  overflow: hidden;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  background: var(--border);
}

.progress-track > span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 300ms ease;
}

fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
  scroll-margin-top: calc(var(--nav-height) + 1.25rem);
}

fieldset legend {
  max-width: 900px;
  margin-bottom: 0.9rem;
  padding: 0;
  font-size: clamp(1.65rem, 3vw, 2.65rem);
  font-weight: 700;
  line-height: 1.25;
}

fieldset:focus-visible legend {
  color: var(--accent-deep);
}

.question-help {
  max-width: 760px;
  margin-bottom: 2rem;
}

.question-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.option-card {
  position: relative;
  display: grid;
  min-height: 92px;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #fff;
  cursor: pointer;
  transition: border-color var(--transition), background-color var(--transition), transform var(--transition);
}

.option-card:hover {
  border-color: var(--border-dark);
  background: #fcfbfb;
  transform: translateY(-1px);
}

.option-card:focus-within {
  border-color: var(--accent);
  outline: 3px solid rgba(117, 29, 53, 0.2);
  outline-offset: 2px;
}

.option-card.is-selected {
  border-color: var(--accent);
  background: #fbf8f9;
}

.option-card input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

.option-marker {
  display: inline-flex;
  width: 2.35rem;
  height: 2.35rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-dark);
  border-radius: 50%;
  color: var(--accent);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
}

.is-multiple .option-marker {
  border-radius: 6px;
}

.option-card.is-selected .option-marker {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.option-card strong {
  font-size: 0.98rem;
  line-height: 1.55;
}

.validation-message {
  min-height: 1.75rem;
  margin: 1.1rem 0 0.3rem;
  color: var(--accent-deep);
  font-weight: 650;
}

.question-actions {
  justify-content: space-between;
}

.question-actions button:disabled {
  border-color: var(--border);
  color: #a19b9e;
  background: #f3f1f2;
  cursor: not-allowed;
  transform: none;
}

.result-panel {
  padding: clamp(1.5rem, 4vw, 3.5rem);
  scroll-margin-top: calc(var(--nav-height) + 1rem);
}

.result-panel:focus {
  outline: none;
}

.result-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  padding-bottom: 1.6rem;
  border-bottom: 1px solid var(--border);
}

.confidence {
  margin: 0;
  color: var(--text);
  font-weight: 700;
}

.result-number {
  color: var(--accent);
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 500;
  line-height: 1;
}

.result-summary {
  max-width: 870px;
  padding: clamp(2rem, 5vw, 4rem) 0;
}

.result-label,
.next-step span {
  margin-bottom: 0.5rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.result-meta {
  margin-bottom: 0.35rem;
  color: var(--text);
  font-size: 1.12rem;
  font-weight: 700;
}

.tier-meta {
  margin-bottom: 1.2rem;
  color: var(--accent-deep);
  font-size: 0.92rem;
}

.result-summary > p:last-child {
  max-width: 760px;
  margin: 1.25rem 0 0;
  font-size: 1.04rem;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.result-grid article {
  min-width: 0;
  padding: 1.5rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.result-grid article:nth-child(2n) {
  border-right: 0;
}

.result-grid article:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.result-grid h3 {
  margin-bottom: 0.9rem;
  font-size: 1.05rem;
}

.result-grid ol,
.result-grid ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.result-grid p,
.result-grid li {
  margin-bottom: 0.45rem;
  line-height: 1.65;
}

.result-grid p,
.result-grid li:last-child {
  margin-bottom: 0;
}

.next-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 2rem;
  margin-top: 1.5rem;
  padding: 1.4rem 1.5rem;
  border-left: 3px solid var(--accent);
  background: #fbf8f9;
}

.next-step p {
  margin: 0;
  color: var(--text);
}

.result-disclaimer {
  margin: 1.5rem 0 0;
  font-size: 0.82rem;
}

.result-secondary-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin-top: 1.2rem;
}

.result-secondary-actions button,
.result-secondary-actions a {
  padding: 0;
  border: 0;
  border-bottom: 1px solid currentColor;
  color: var(--accent-deep);
  background: transparent;
  font-size: 0.88rem;
  cursor: pointer;
}

.result-services {
  display: grid;
  gap: 1.25rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.service-panel {
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
}

.service-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 0.9rem;
}

.service-heading h3 {
  margin: 0;
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
}

.service-heading > span {
  flex: 0 0 auto;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--border-dark);
  border-radius: 6px;
  color: var(--accent-deep);
  font-size: 0.75rem;
  font-weight: 700;
}

.service-panel > p {
  max-width: 780px;
}

.lead-opt-in {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem 1.5rem;
  padding: clamp(1.1rem, 2.4vw, 1.55rem);
  background: #faf9f9;
}

.lead-opt-in-copy {
  min-width: 0;
}

.lead-opt-in-copy h3,
.lead-form-heading h4,
.lead-success h4 {
  margin: 0;
}

.lead-opt-in-copy h3 {
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
}

.lead-opt-in-copy > p:last-child,
.lead-form-heading p,
.lead-success p {
  max-width: 780px;
  margin: 0.55rem 0 0;
  color: var(--muted);
}

.lead-toggle {
  min-height: 44px;
  padding: 0.62rem 0.9rem;
  border: 1px solid var(--border-dark);
  color: var(--accent-deep);
  background: transparent;
}

.lead-toggle:hover {
  border-color: var(--accent);
  background: #fff;
}

.lead-form-region,
.lead-success {
  grid-column: 1 / -1;
  min-width: 0;
  margin-top: 0.35rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--border);
}

.lead-form-heading {
  margin-bottom: 1.2rem;
}

.lead-form-heading h4,
.lead-success h4 {
  font-size: 1.1rem;
}

.lead-success {
  padding: 1.15rem;
  border: 1px solid #cbd9cf;
  border-radius: 9px;
  background: #f7faf8;
}

.consent-block {
  max-width: 850px;
  margin: 1.3rem 0;
  padding: 1rem 1.1rem;
  border-left: 3px solid var(--accent);
  background: #fbf8f9;
}

.consent-row {
  display: grid;
  grid-template-columns: 1.25rem minmax(0, 1fr);
  align-items: start;
  gap: 0.75rem;
  color: var(--text);
  cursor: pointer;
  font-weight: 650;
  line-height: 1.6;
}

.consent-row input {
  width: 1.1rem;
  height: 1.1rem;
  margin: 0.25rem 0 0;
  accent-color: var(--accent);
}

.consent-block p {
  margin: 0.55rem 0 0 2rem;
  font-size: 0.82rem;
}

.consent-block a,
.privacy-copy a {
  margin-left: 0.2rem;
  color: var(--accent-deep);
  border-bottom: 1px solid currentColor;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.contact-grid label {
  display: grid;
  gap: 0.45rem;
  min-width: 0;
}

.contact-grid label > span {
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
}

.contact-grid input {
  width: 100%;
  min-height: 48px;
  padding: 0.72rem 0.8rem;
  border: 1px solid var(--border-dark);
  border-radius: 8px;
  color: var(--text);
  background: #fff;
}

.contact-grid input:focus-visible {
  border-color: var(--accent);
}

.contact-grid input:disabled,
.consent-row input:disabled {
  color: #777;
  background: #f2f0f1;
  cursor: not-allowed;
}

.field-help {
  margin: 0.7rem 0 0;
  font-size: 0.82rem;
}

.service-status {
  min-height: 1.7rem;
  margin: 0.9rem 0 0;
  font-size: 0.88rem;
  font-weight: 650;
}

.service-status.is-loading,
.service-status.is-warning {
  color: #715323;
}

.service-status.is-success {
  color: #3d6549;
}

.service-status.is-error {
  color: var(--accent-deep);
}

.service-panel button:disabled {
  opacity: 0.58;
  cursor: not-allowed;
  transform: none;
}

.ai-insight-output {
  margin-top: 1rem;
  padding: 1.2rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--soft-bg);
}

.ai-insight-output > p {
  margin-bottom: 1.15rem;
  color: var(--text);
}

.ai-insight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.ai-insight-grid article {
  min-width: 0;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border-dark);
}

.ai-insight-grid h4 {
  margin: 0 0 0.65rem;
  font-size: 0.92rem;
}

.ai-insight-grid ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.ai-insight-grid li {
  margin-bottom: 0.4rem;
}

.privacy-section {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
}

.privacy-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(330px, 1fr);
  gap: clamp(3rem, 7vw, 6rem);
}

.privacy-copy {
  border-top: 1px solid var(--text);
}

.privacy-copy article {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.privacy-copy h3 {
  margin-bottom: 0.65rem;
  font-size: 1.05rem;
}

.privacy-copy p {
  margin: 0;
}

.site-footer {
  padding: 2.2rem 0;
  border-top: 1px solid var(--border);
  background: var(--soft-bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.footer-inner div {
  display: grid;
  gap: 0.2rem;
}

.footer-inner strong {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.footer-inner span,
.footer-inner a {
  color: var(--muted);
  font-size: 0.84rem;
}

@media (max-width: 1000px) {
  .hero-grid,
  .privacy-grid {
    grid-template-columns: 1fr;
  }

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

  .assessment-facts > div {
    display: block;
    padding: 1.2rem;
    border: 1px solid var(--border);
    border-right: 0;
  }

  .assessment-facts > div:last-child {
    border-right: 1px solid var(--border);
  }

  .assessment-facts span,
  .assessment-facts strong {
    display: block;
    margin-bottom: 0.35rem;
  }

  .next-step {
    grid-template-columns: 1fr;
  }

  .ai-insight-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  :root {
    --nav-height: 76px;
    --gutter: 1.1rem;
  }

  .brand-link img {
    width: 54px;
    height: 54px;
  }

  .brand-link small,
  .site-header nav > a:not(.nav-phone) {
    display: none;
  }

  .nav-phone {
    min-height: 42px;
    padding-inline: 0.85rem;
    font-size: 0.84rem;
  }

  .assessment-hero {
    padding-top: calc(var(--nav-height) + 3.5rem);
  }

  .hero-watermark {
    display: none;
  }

  .assessment-facts,
  .question-options,
  .result-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .lead-opt-in {
    grid-template-columns: minmax(0, 1fr);
  }

  .lead-toggle {
    justify-self: start;
  }

  .assessment-facts > div,
  .assessment-facts > div:last-child {
    border-right: 1px solid var(--border);
    border-bottom: 0;
  }

  .assessment-facts > div:last-child {
    border-bottom: 1px solid var(--border);
  }

  .question-panel {
    min-height: 0;
  }

  .result-grid article,
  .result-grid article:nth-child(2n),
  .result-grid article:nth-last-child(-n + 2) {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .result-grid article:last-child {
    border-bottom: 0;
  }

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

@media (max-width: 430px) {
  .hero-copy h1 {
    font-size: clamp(2.1rem, 8.8vw, 2.45rem);
  }

  .hero-actions,
  .question-actions,
  .result-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

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

  .assessment-intro,
  .question-panel,
  .result-panel {
    padding: 1.2rem;
  }

  .question-actions {
    gap: 0.65rem;
  }

  .result-heading {
    display: block;
  }

  .service-heading {
    display: block;
  }

  .service-heading > span {
    display: inline-block;
    margin-top: 0.8rem;
  }

  .result-number {
    display: block;
    margin-top: 1.4rem;
  }

  .option-card {
    min-height: 86px;
    padding: 0.9rem;
  }

  .service-panel .button {
    width: 100%;
  }

  .consent-block {
    padding: 0.9rem;
  }

  .consent-block p {
    margin-left: 0;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}