/* Dongqian additions to the reference layout. */
[hidden] { display: none !important; }
.footer-brand strong { font-size: 17px; }
.footer-brand { min-width: 0; }
.footer-bottom { gap: 20px; }
.footer-filing { flex-shrink: 0; }
.contact-email { overflow-wrap: anywhere; }
.selected-service { padding: 10px 14px; border: 1px solid var(--accent-line); border-radius: 6px; background: var(--accent-soft); color: var(--accent-deep); font-size: 13px; }
.summary-panel { margin-top: 10px; padding-top: 20px; border-top: 1px solid var(--line); }
.summary-panel h3 { font-size: 17px; margin-bottom: 10px; }
.summary-panel p { margin: 8px 0 12px; color: var(--ink-soft); font-size: 13px; }
.summary-panel textarea { width: 100%; resize: vertical; min-height: 210px; padding: 14px; border: 1px solid var(--line-strong); border-radius: 6px; background: var(--surface-soft); color: var(--ink); font-size: 14px; line-height: 1.6; }
.summary-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.summary-actions a { display: inline-flex; align-items: center; padding: 10px 15px; border: 1px solid var(--accent-line); border-radius: 999px; color: var(--accent-deep); font-size: 13px; }
.summary-actions a:first-child { background: var(--accent-deep); border-color: var(--accent-deep); color: var(--page); }
.subpage-main { padding: 95px 0 110px; min-height: 65vh; }
.subpage-intro { max-width: 800px; margin-bottom: 55px; }
.subpage-intro h1 { font-size: clamp(32px, 4.5vw, 54px); line-height: 1.22; margin: 12px 0 24px; letter-spacing: -0.03em; }
.subpage-intro .intro-description { max-width: 700px; color: var(--ink-soft); font-size: 17px; }
.page-date { font-family: var(--mono); color: var(--ink-mute); font-size: 12px; margin-top: 20px; }
.plan-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.plan-card { display: flex; flex-direction: column; gap: 20px; position: relative; padding: 32px 28px; border: 1px solid var(--line-strong); border-radius: 12px; background: var(--surface); box-shadow: var(--shadow-sm); }
.plan-number { font-family: var(--mono); color: var(--accent); font-size: 12px; letter-spacing: 0.1em; }
.plan-card h2 { font-size: 22px; line-height: 1.35; }
.plan-description { min-height: 78px; color: var(--ink-soft); font-size: 14px; }
.plan-price { margin-top: auto; padding-top: 22px; border-top: 1px solid var(--line); }
.plan-price strong { font-size: 24px; color: var(--accent-deep); font-weight: 600; }
.plan-price span { display: block; font-size: 12px; color: var(--ink-mute); margin-top: 5px; }
.plan-card .contact-button { display: inline-flex; justify-content: center; align-items: center; text-align: center; width: 100%; }
.plan-note { margin-top: 30px; max-width: 900px; color: var(--ink-soft); font-size: 14px; line-height: 1.85; }
.text-link { color: var(--accent-deep); text-decoration: underline; text-underline-offset: 4px; }
.document-grid { display: grid; gap: 20px; max-width: 900px; }
.document-section { padding: 28px 30px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
.document-section h2 { font-size: 21px; margin-bottom: 15px; }
.document-section p { color: var(--ink-soft); font-size: 15px; line-height: 1.85; }
.document-section p + p { margin-top: 10px; }
.notice-box { display: flex; align-items: flex-start; gap: 18px; padding: 30px; border: 1px solid var(--accent-line); border-radius: 12px; background: var(--accent-soft); max-width: 900px; margin-bottom: 28px; }
.notice-number { flex-shrink: 0; font-family: var(--mono); color: var(--accent); font-size: 16px; }
.notice-box h2 { font-size: 21px; margin-bottom: 8px; }
.notice-box p { color: var(--ink-soft); font-size: 15px; }
.subpage-actions { display: flex; flex-wrap: wrap; gap: 15px; margin-top: 30px; }
.subpage-actions .contact-button { display: inline-flex; align-items: center; }
@media (max-width: 1080px) { .plan-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .footer-nav { flex-wrap: wrap; } }
@media (max-width: 720px) {
  .subpage-main { padding: 55px 0 70px; }
  .subpage-intro { margin-bottom: 35px; }
  .subpage-intro .intro-description { font-size: 15px; }
  .plan-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .plan-card { padding: 25px 22px; }
  .plan-description { min-height: 0; }
  .document-section, .notice-box { padding: 24px 20px; }
  .footer-brand strong { font-size: 15px; }
  .footer-filing { flex-shrink: 1; }
}