/* ============================================================
   State Record / 山东史政网络科技有限公司
   Official Document-Style Stylesheet
   Colors: Navy #1B2A4A, Federal Blue #3A5A8C, Parchment #F5F0E0,
           Gold Seal #B8860B, White #FFFFFF, Slate #4A5568
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-navy: #1B2A4A;
  --color-navy-light: #243662;
  --color-federal: #3A5A8C;
  --color-federal-light: #4A6FA5;
  --color-parchment: #F5F0E0;
  --color-parchment-dark: #E8E0C8;
  --color-gold: #B8860B;
  --color-gold-light: #D4A017;
  --color-white: #FFFFFF;
  --color-slate: #4A5568;
  --color-slate-light: #6B7A90;

  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-body: 'Georgia', 'Times New Roman', serif;
  --font-mono: 'Courier New', Courier, monospace;

  --border-certificate: 3px double var(--color-navy);
  --border-ornate: 1px solid var(--color-gold);
  --shadow-document: 0 2px 12px rgba(27, 42, 74, 0.12);
  --radius-none: 0;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 3rem;
  --space-xl: 5rem;

  --max-width-content: 820px;
  --max-width-wide: 960px;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--color-navy);
  background-color: var(--color-parchment);
  line-height: 1.75;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-xs) var(--space-md);
  z-index: 1000;
  font-weight: bold;
  text-decoration: none;
}

.skip-link:focus {
  top: 0;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  line-height: 1.3;
  font-weight: 700;
}

h1 {
  font-size: 2.2rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h2 {
  font-size: 1.7rem;
  letter-spacing: 0.03em;
}

h3 {
  font-size: 1.35rem;
  letter-spacing: 0.02em;
}

p {
  margin-bottom: var(--space-sm);
}

a {
  color: var(--color-federal);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 0.2s ease;
}

a:hover,
a:focus-visible {
  color: var(--color-navy);
}

:focus-visible {
  outline: 2px solid var(--color-federal);
  outline-offset: 2px;
}

/* --- Ornamental Divider --- */
.ornamental-rule {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin: var(--space-lg) 0;
  color: var(--color-gold);
  font-size: 0.8rem;
  letter-spacing: 0.5em;
  user-select: none;
}

.ornamental-rule::before,
.ornamental-rule::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-gold);
}

.ornamental-rule.double::before,
.ornamental-rule.double::after {
  height: 1px;
  border-top: 1px solid var(--color-gold);
  border-bottom: 1px solid var(--color-gold);
  height: 3px;
  background: transparent;
}

/* --- Site Header / Letterhead --- */
.site-header {
  background: var(--color-white);
  border-bottom: 4px double var(--color-navy);
  padding: var(--space-md) var(--space-md) var(--space-sm);
}

.header-inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header-seal {
  flex-shrink: 0;
  width: 70px;
  height: 70px;
}

.header-titles {
  display: flex;
  flex-direction: column;
}

.header-titles .company-zh {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: 0.06em;
  line-height: 1.2;
}

.header-titles .company-en {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-federal);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-titles .company-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-slate);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 2px;
}

/* --- Navigation --- */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.site-nav a {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--color-navy);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: var(--color-federal);
  border-bottom-color: var(--color-gold);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-navy);
  color: var(--color-navy);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: var(--space-xs) var(--space-sm);
  cursor: pointer;
}

.nav-toggle:hover {
  background: var(--color-navy);
  color: var(--color-white);
}

/* --- Main Content --- */
.site-main {
  flex: 1;
}

/* --- Document Section --- */
.document-section {
  max-width: var(--max-width-content);
  margin: var(--space-lg) auto;
  padding: 0 var(--space-md);
}

.document-section.wide {
  max-width: var(--max-width-wide);
}

/* --- Certificate Box --- */
.certificate-box {
  background: var(--color-white);
  border: var(--border-certificate);
  padding: var(--space-lg) var(--space-md);
  position: relative;
  box-shadow: var(--shadow-document);
}

.certificate-box::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  bottom: 8px;
  border: 1px solid var(--color-gold);
  pointer-events: none;
  opacity: 0.5;
}

.certificate-box .certificate-number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-slate);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-parchment-dark);
}

.certificate-box .certificate-title {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.certificate-box .certificate-title h2 {
  font-size: 1.5rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-navy);
  margin-bottom: var(--space-xs);
}

.certificate-box .certificate-title .subtitle {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-slate);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* --- Seal Stamp Motif --- */
.seal-stamp {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: var(--space-md) auto;
}

.seal-stamp svg {
  width: 90px;
  height: 90px;
  opacity: 0.85;
}

.seal-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.04;
  pointer-events: none;
  z-index: 0;
}

.seal-watermark svg {
  width: 200px;
  height: 200px;
}

/* --- Document Body Text --- */
.document-body {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-navy);
}

.document-body p {
  text-indent: 2em;
  margin-bottom: var(--space-sm);
}

.document-body p.no-indent {
  text-indent: 0;
}

/* --- Official Numbered List --- */
.official-list {
  list-style: none;
  counter-reset: official;
  padding: 0;
  margin: var(--space-md) 0;
}

.official-list li {
  counter-increment: official;
  padding: var(--space-sm) 0 var(--space-sm) 3rem;
  position: relative;
  border-bottom: 1px solid var(--color-parchment-dark);
}

.official-list li:last-child {
  border-bottom: none;
}

.official-list li::before {
  content: '(' counter(official, decimal) ')';
  position: absolute;
  left: 0;
  top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-federal);
  font-weight: 700;
}

.official-list h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
  color: var(--color-navy);
}

.official-list p {
  color: var(--color-slate);
  font-size: 0.95rem;
  text-indent: 0;
  margin-bottom: 0;
}

/* --- Service Document (two-column document grid) --- */
.service-docket {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin: var(--space-md) 0;
}

.docket-item {
  background: var(--color-white);
  border: 1px solid var(--color-parchment-dark);
  padding: var(--space-md);
  position: relative;
}

.docket-item .docket-ref {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-slate);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.docket-item h3 {
  font-size: 1.1rem;
  color: var(--color-navy);
  margin-bottom: var(--space-xs);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-gold);
}

.docket-item p {
  font-size: 0.9rem;
  color: var(--color-slate);
  text-indent: 0;
  margin-bottom: 0;
}

/* --- Official Quote Block --- */
.official-blockquote {
  margin: var(--space-md) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 4px solid var(--color-federal);
  background: var(--color-white);
  font-style: italic;
  color: var(--color-slate);
}

.official-blockquote .attribution {
  display: block;
  margin-top: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-federal);
}

/* --- Counters (Document Register Style) --- */
.counter-register {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
}

.register-entry {
  text-align: center;
  min-width: 140px;
}

.register-entry .register-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1;
  display: block;
}

.register-entry .register-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-slate);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: block;
  margin-top: var(--space-xs);
  padding-top: var(--space-xs);
  border-top: 1px solid var(--color-gold);
}

/* --- Contact Form --- */
.contact-document {
  background: var(--color-white);
  border: var(--border-certificate);
  padding: var(--space-lg) var(--space-md);
}

.contact-document .form-header {
  text-align: center;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-gold);
}

.contact-document .form-header h2 {
  font-size: 1.5rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-document .form-header .form-ref {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-slate);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.form-field {
  margin-bottom: var(--space-md);
}

.form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-navy);
  margin-bottom: var(--space-xs);
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 0.75rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-navy);
  background: var(--color-parchment);
  border: 1px solid var(--color-parchment-dark);
  border-radius: 0;
  transition: border-color 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--color-federal);
  background: var(--color-white);
}

.form-field textarea {
  min-height: 140px;
  resize: vertical;
}

.form-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%231B2A4A' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

.form-submit {
  display: flex;
  justify-content: center;
}

.btn-official {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.85rem 2.5rem;
  background: var(--color-navy);
  color: var(--color-white);
  border: 2px solid var(--color-navy);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.btn-official:hover,
.btn-official:focus-visible {
  background: var(--color-white);
  color: var(--color-navy);
}

.btn-official:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-status {
  text-align: center;
  margin-top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  min-height: 1.5em;
}

.form-status.success {
  color: #1a5c1a;
}

.form-status.error {
  color: #8b1a1a;
}

/* --- Site Footer --- */
.site-footer {
  background: var(--color-navy);
  color: var(--color-parchment);
  padding: var(--space-lg) var(--space-md);
  margin-top: var(--space-xl);
  border-top: 4px double var(--color-gold);
}

.footer-inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-lg);
}

.footer-brand .footer-zh {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.footer-brand .footer-en {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--color-gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.footer-brand .footer-address {
  font-size: 0.8rem;
  color: var(--color-parchment-dark);
  line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-federal);
}

.footer-links a {
  display: block;
  font-size: 0.85rem;
  color: var(--color-parchment);
  text-decoration: none;
  padding: 0.3rem 0;
  transition: color 0.2s ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-gold);
}

.footer-contact p {
  font-size: 0.8rem;
  color: var(--color-parchment-dark);
  margin-bottom: var(--space-xs);
}

.footer-contact a {
  color: var(--color-parchment);
}

.footer-contact a:hover,
.footer-contact a:focus-visible {
  color: var(--color-gold);
}

.footer-bottom {
  max-width: var(--max-width-wide);
  margin: var(--space-md) auto 0;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-federal);
  text-align: center;
}

.footer-bottom p {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-slate-light);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}

.footer-bottom .footer-icp {
  font-size: 0.6rem;
  color: var(--color-slate-light);
}

/* --- Privacy & TOS Policy Pages --- */
.policy-document {
  max-width: var(--max-width-content);
  margin: var(--space-lg) auto;
  padding: 0 var(--space-md);
}

.policy-header {
  text-align: center;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 3px double var(--color-navy);
}

.policy-header h1 {
  font-size: 1.8rem;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-xs);
}

.policy-header .policy-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-slate);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.policy-content {
  background: var(--color-white);
  border: var(--border-certificate);
  padding: var(--space-lg) var(--space-md);
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-navy);
}

.policy-content h2 {
  font-size: 1.25rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-gold);
  letter-spacing: 0.04em;
}

.policy-content h2:first-child {
  margin-top: 0;
}

.policy-content h3 {
  font-size: 1.05rem;
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
  color: var(--color-federal);
}

.policy-content p {
  margin-bottom: var(--space-sm);
  text-indent: 0;
}

.policy-content ul,
.policy-content ol {
  margin: var(--space-sm) 0 var(--space-sm) var(--space-lg);
}

.policy-content li {
  margin-bottom: var(--space-xs);
}

.policy-content .policy-seal {
  text-align: center;
  margin: var(--space-lg) 0;
}

.policy-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  font-size: 0.9rem;
}

.policy-content th,
.policy-content td {
  border: 1px solid var(--color-parchment-dark);
  padding: 0.6rem 0.8rem;
  text-align: left;
}

.policy-content th {
  background: var(--color-navy);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.policy-content .effective-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-slate);
  text-align: center;
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-parchment-dark);
}

.policy-content .entity-name {
  font-weight: 700;
  color: var(--color-navy);
}

/* --- Scroll Animation --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }

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

  .header-seal {
    width: 50px;
    height: 50px;
  }

  .header-titles .company-zh {
    font-size: 1.2rem;
  }

  .header-titles .company-en {
    font-size: 0.8rem;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: 0;
    padding-top: var(--space-sm);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: var(--space-sm);
    border-bottom: 1px solid var(--color-parchment-dark);
    font-size: 0.8rem;
  }

  .service-docket {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .certificate-box,
  .contact-document,
  .policy-content {
    padding: var(--space-md) var(--space-sm);
  }

  h1 {
    font-size: 1.6rem;
  }

  h2 {
    font-size: 1.3rem;
  }

  .counter-register {
    gap: var(--space-md);
  }

  .register-entry .register-number {
    font-size: 2.2rem;
  }

  .document-body p {
    text-indent: 1em;
  }

  .policy-content {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .certificate-box::before {
    top: 4px;
    left: 4px;
    right: 4px;
    bottom: 4px;
  }

  .counter-register {
    flex-direction: column;
    align-items: center;
  }

  .official-list li {
    padding-left: 2.5rem;
  }
}

/* --- Print Styles --- */
@media print {
  body {
    background: var(--color-white);
  }

  .site-header,
  .site-footer,
  .nav-toggle,
  .contact-document,
  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }

  .certificate-box {
    box-shadow: none;
    break-inside: avoid;
  }

  .site-nav {
    display: none;
  }
}