:root {
  --ink: #11100d;
  --paper: #f7f8f4;
  --white: #ffffff;
  --green: #69c757;
  --green-dark: #399d3c;
  --muted: #666a62;
  --line: #dfe2da;
  --danger: #a82424;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

img {
  display: block;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 12px 16px;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-160%);
}

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

.form-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 104px;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 4.5vw;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
}

.brand img {
  width: 48px;
  height: 43px;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand-copy strong {
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -0.04em;
}

.brand-copy small {
  margin-top: 5px;
  color: var(--green-dark);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
}

.back-link {
  font-size: 0.875rem;
  font-weight: 700;
  transition: color 180ms ease;
}

.back-link:hover {
  color: var(--green-dark);
}

.form-header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
}

.language-switch a,
.language-switch span {
  padding: 5px 2px;
}

.language-switch a:hover {
  color: var(--green-dark);
}

.language-switch [aria-current="page"] {
  color: var(--ink);
  border-bottom: 2px solid var(--green-dark);
}

.supplier-shell {
  display: grid;
  grid-template-columns: minmax(330px, 0.72fr) minmax(0, 1.28fr);
  max-width: 1440px;
  margin: 0 auto;
}

.supplier-intro {
  position: relative;
  min-height: 820px;
  padding: 88px 5vw 70px;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.supplier-intro::before,
.supplier-intro::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(105, 199, 87, 0.35);
  border-radius: 50%;
}

.supplier-intro::before {
  width: 420px;
  height: 420px;
  right: -260px;
  bottom: 20px;
}

.supplier-intro::after {
  width: 260px;
  height: 260px;
  right: -150px;
  bottom: 100px;
}

.eyebrow,
.form-kicker {
  margin: 0 0 24px;
  color: var(--green);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.supplier-intro h1 {
  position: relative;
  z-index: 1;
  max-width: 590px;
  margin: 0 0 35px;
  font-size: clamp(3rem, 5.2vw, 5.1rem);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.supplier-intro h1 span {
  color: var(--green);
}

.supplier-intro > p:not(.eyebrow):not(.market-note) {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 0 14px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 1rem;
}

.review-points {
  position: relative;
  z-index: 1;
  display: grid;
  margin-top: 58px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.review-points div {
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: center;
  min-height: 64px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.875rem;
}

.review-points span {
  color: var(--green);
  font-size: 0.75rem;
  font-weight: 700;
}

.market-note {
  position: relative;
  z-index: 1;
  margin: 54px 0 0;
  color: var(--green);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.form-panel {
  padding: 86px clamp(28px, 6vw, 92px) 90px;
  background: var(--white);
}

.form-heading {
  margin-bottom: 50px;
}

.form-heading h2,
.success-card h2 {
  margin: 0;
  font-size: clamp(2.5rem, 4vw, 4.25rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 1;
}

.form-heading > p:last-child {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.875rem;
}

.error-box {
  margin: 0 0 34px;
  padding: 22px 24px;
  border-left: 4px solid var(--danger);
  background: #fff4f4;
  color: #651919;
}

.error-box strong {
  font-size: 0.9375rem;
}

.error-box ul {
  margin: 12px 0 0;
  padding-left: 20px;
  font-size: 0.875rem;
}

fieldset {
  min-width: 0;
  margin: 0 0 54px;
  padding: 0;
  border: 0;
}

legend {
  width: 100%;
  margin: 0 0 26px;
  padding: 0 0 15px;
  border-bottom: 1px solid var(--ink);
  font-size: 1.125rem;
  font-weight: 700;
}

legend span {
  display: inline-block;
  min-width: 44px;
  color: var(--green-dark);
  font-size: 0.75rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.field {
  display: grid;
  gap: 9px;
}

.field.full {
  grid-column: 1 / -1;
}

.field > span {
  color: #353832;
  font-size: 0.875rem;
  font-weight: 700;
}

.field-help {
  margin-top: -2px;
  color: var(--muted);
  font-size: 0.8125rem;
}

.market-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 4px;
}

.market-option {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  align-items: center;
  min-height: 54px;
  padding: 12px 13px;
  border: 1px solid #cdd1c8;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease;
}

.market-option:hover {
  border-color: var(--green-dark);
  background: #f4faf1;
}

.market-option input {
  width: 20px;
  min-height: 20px;
  margin: 0;
  accent-color: var(--green-dark);
}

.market-option span {
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.35;
}

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

input,
select,
textarea {
  width: 100%;
  min-height: 50px;
  padding: 13px 14px;
  border: 1px solid #cdd1c8;
  border-radius: 0;
  outline: none;
  background: var(--white);
  color: var(--ink);
  font-size: 1rem;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

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

input:focus,
select:focus,
textarea:focus {
  border-color: var(--green-dark);
  box-shadow: 0 0 0 3px rgba(57, 157, 60, 0.15);
}

input::placeholder,
textarea::placeholder {
  color: #8a8e85;
}

.consent-field {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 13px;
  align-items: start;
  margin-top: -8px;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.55;
}

.consent-field input {
  width: 20px;
  min-height: 20px;
  margin: 2px 0 0;
  accent-color: var(--green-dark);
}

.submit-row {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 34px;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  min-width: 245px;
  min-height: 56px;
  gap: 30px;
  padding: 15px 19px;
  border: 0;
  border-radius: 0;
  background: var(--ink);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 180ms ease, transform 180ms ease;
}

.primary-button:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
}

.primary-button:focus-visible {
  outline: 3px solid rgba(57, 157, 60, 0.35);
  outline-offset: 3px;
}

.submit-row p {
  margin: 0;
  color: var(--muted);
  font-size: 0.75rem;
}

.honeypot {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
}

.success-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  min-height: 600px;
  max-width: 680px;
}

.success-icon {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 34px;
  border-radius: 50%;
  background: var(--green);
  font-size: 1.5rem;
  font-weight: 700;
}

.success-card > p:not(.form-kicker) {
  max-width: 610px;
  margin: 26px 0 36px;
  color: var(--muted);
  font-size: 1.0625rem;
}

.form-footer {
  display: flex;
  justify-content: space-between;
  max-width: 1440px;
  min-height: 120px;
  margin: 0 auto;
  padding: 40px 4.5vw;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.75rem;
}

.form-footer p {
  margin: 0;
}

.form-footer a:hover {
  color: var(--green-dark);
}

@media (max-width: 980px) {
  .supplier-shell {
    grid-template-columns: 1fr;
  }

  .supplier-intro {
    min-height: auto;
    padding: 76px 7vw;
  }

  .supplier-intro h1 {
    max-width: 760px;
  }

  .review-points {
    max-width: 680px;
  }
}

@media (max-width: 680px) {
  .form-header {
    flex-wrap: wrap;
    gap: 12px;
    min-height: 84px;
    padding: 16px 22px;
  }

  .brand img {
    width: 39px;
    height: 36px;
  }

  .brand-copy strong {
    font-size: 0.9375rem;
  }

  .brand-copy small {
    font-size: 0.6875rem;
  }

  .back-link {
    max-width: 110px;
    text-align: right;
    font-size: 0.75rem;
    line-height: 1.35;
  }

  .form-header-actions {
    width: 100%;
    justify-content: space-between;
    gap: 9px;
  }

  .language-switch {
    gap: 5px;
    font-size: 0.6875rem;
  }

  .supplier-intro {
    padding: 68px 22px;
  }

  .supplier-intro h1 {
    font-size: clamp(2.85rem, 14vw, 4.25rem);
  }

  .form-panel {
    padding: 68px 22px 76px;
  }

  .form-grid {
    grid-template-columns: 1fr;
    gap: 21px;
  }

  .market-options {
    grid-template-columns: 1fr;
  }

  .field.full {
    grid-column: auto;
  }

  .submit-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .primary-button {
    width: 100%;
  }

  .form-footer {
    flex-direction: column;
    gap: 10px;
    padding: 36px 22px;
  }
}

html[lang^="zh"] body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
}

html[lang^="zh"] .supplier-intro h1,
html[lang^="zh"] .form-heading h2,
html[lang^="zh"] .success-card h2 {
  letter-spacing: -0.025em;
  line-height: 1.08;
}

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

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