/* ─────────────────── Reset & Base ─────────────────── */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

:root {
  --pk: #d4537e;
  --pk-50: rgba(212, 83, 126, 0.06);
  --pk-100: rgba(212, 83, 126, 0.1);
  --pk-600: #b4365f;
  --page-bg: #fffaf8;
  --text: #1a1a1a;
  --text-soft: #6f5b64;
  --text-mute: #9a8791;
  --border: rgba(212, 83, 126, 0.12);
  --card-bg: rgba(255, 255, 255, 0.92);
  --shadow: 0 20px 50px rgba(116, 66, 83, 0.07);
}

body {
  font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(212, 83, 126, 0.08), transparent 28%),
    linear-gradient(180deg, #fff8fa 0%, var(--page-bg) 18%, #fffaf8 100%);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 0 20px;
}

/* ─────────────────── Header / Nav ─────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 248, 250, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header-inner {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.brand-cn {
  font-size: 18px;
  font-weight: 700;
  color: #321823;
}

.brand-en {
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(50, 24, 35, 0.55);
}

.site-nav {
  display: flex;
  gap: 18px;
  font-size: 13px;
}

.site-nav a {
  color: #5a4b52;
  font-weight: 500;
  transition: color 0.15s ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--pk);
}

/* ─────────────────── Hero ─────────────────── */

.hero {
  padding: 56px 0 28px;
}

.eyebrow {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--pk-100);
  color: var(--pk-600);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.hero-title {
  margin: 16px 0 12px;
  font-size: clamp(26px, 4.8vw, 42px);
  line-height: 1.2;
  font-weight: 700;
  color: #23131c;
}

.hero-desc {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-soft);
  max-width: 34em;
}

.hero-updated {
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-mute);
}

/* ─────────────────── Section ─────────────────── */

.section {
  padding: 32px 0;
}

.section-kicker {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--pk);
  letter-spacing: 0.05em;
}

.section-title {
  margin: 0 0 18px;
  font-size: clamp(20px, 2.8vw, 26px);
  line-height: 1.2;
  color: #1f1a1d;
  font-weight: 700;
}

.section-body {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.95;
  color: #4a3b42;
}

/* ─────────────────── Post Card ─────────────────── */

.post {
  margin: 0 0 20px;
  border-radius: 22px;
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid rgba(212, 83, 126, 0.1);
  box-shadow: 0 18px 42px rgba(116, 66, 83, 0.05);
}

.post-cover {
  position: relative;
  height: 140px;
  display: flex;
  align-items: flex-end;
  padding: 14px 18px;
}

.post-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 40%, rgba(0, 0, 0, 0.12));
  pointer-events: none;
}

.post-tag {
  position: relative;
  z-index: 1;
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.85);
  color: #41202b;
}

.post-body {
  padding: 22px 22px 24px;
}

.post-title {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  color: #1f1720;
  line-height: 1.4;
}

.post-date {
  margin: 0 0 14px;
  font-size: 12px;
  color: var(--text-mute);
  letter-spacing: 0.02em;
}

.post-lead {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.95;
  color: #3a2b32;
  font-weight: 500;
}

.post-heading {
  margin: 16px 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: #22181d;
}

.post-body p {
  margin: 0 0 4px;
  font-size: 14px;
  line-height: 1.95;
  color: #4a3b42;
}

.post-closing {
  margin: 18px 0 0 !important;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(251, 234, 240, 0.55);
  border: 1px solid rgba(212, 83, 126, 0.1);
  font-size: 13px !important;
  line-height: 1.9 !important;
  color: #5a4a52 !important;
  font-style: italic;
}

/* ─────────────────── Filing Info ─────────────────── */

.filing {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.96), rgba(251, 234, 240, 0.88));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
  margin-top: 8px;
}

.info-item {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(212, 83, 126, 0.08);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.info-label {
  font-size: 12px;
  color: #8f7a83;
}

.info-value {
  font-size: 14px;
  font-weight: 600;
  color: #2b2026;
}

.info-link {
  color: #2b2026;
  transition: color 0.15s ease;
}

.info-link:hover {
  color: var(--pk);
}

/* ─────────────────── Prose (Privacy) ─────────────────── */

.prose .prose-section {
  margin-bottom: 22px;
}

.prose h2 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: #1f1a1d;
}

.prose p {
  font-size: 14px;
  line-height: 1.95;
  color: #4a3b42;
}

/* ─────────────────── Footer ─────────────────── */

.site-footer {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 240, 245, 0.55) 100%);
  border-top: 1px solid var(--border);
  margin-top: 20px;
}

.footer-inner {
  padding: 28px 20px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
}

.footer-brand {
  font-size: 15px;
  font-weight: 700;
  color: #321823;
  display: inline-flex;
  gap: 8px;
  align-items: baseline;
}

.footer-brand-en {
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(50, 24, 35, 0.5);
  font-weight: 500;
}

.footer-tagline {
  font-size: 12px;
  color: var(--text-soft);
}

.footer-filing {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  font-size: 12px;
  color: #5a4b52;
}

.footer-filing a {
  color: #5a4b52;
  transition: color 0.15s ease;
}

.footer-filing a:hover {
  color: var(--pk);
}

.filing-pending {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #9a8791;
}

.shield {
  width: 12px;
  height: 12px;
}

.footer-note {
  font-size: 11px;
  color: var(--text-mute);
  margin-top: 4px;
}

/* ─────────────────── Responsive ─────────────────── */

@media (min-width: 768px) {
  .container,
  .site-header-inner {
    width: min(880px, 100%);
  }

  .hero {
    padding: 72px 0 36px;
  }

  .post-cover {
    height: 180px;
  }

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .footer-filing {
    justify-content: flex-end;
  }
}