/* Ruian story page: inquiry form up front, a small animated newspaper as decoration. */
.ruian-page {
  --paper: #f6f1e4;
  --paper-edge: #e0d7bd;
  --newsprint: #1b1a17;
  --newsprint-soft: #5a5546;
  --stamp: #b3261e;
  --gz-serif: "Playfair Display", "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, "Times New Roman", serif;
}

.ru-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: clamp(24px, 4vw, 56px); align-items: start; }
.ru-story h1 { text-wrap: balance; }
.ru-jump { display: none; margin-top: var(--space-3, 12px); }
.ru-ask { position: sticky; top: 88px; scroll-margin-top: 88px; }
.ru-ask .contact-form { margin: 0; }
.ru-form-intro { margin: 4px 0 12px; color: var(--ink-soft); font-size: var(--text-sm); }

/* ------------------------------------------------------------ newspaper */
.paper { margin: clamp(20px, 3vw, 32px) 0 0; perspective: 900px; }
.paper-sheet {
  position: relative; max-width: 460px; padding: 14px 18px 16px;
  background: var(--paper); color: var(--newsprint);
  border: 1px solid var(--paper-edge); border-radius: 4px;
  box-shadow: 0 1px 0 #fff inset, 0 2px 0 var(--paper-edge), 0 4px 0 -1px #fff, 0 5px 0 var(--paper-edge), 0 22px 36px -22px rgba(40, 30, 10, 0.55);
  font-family: var(--gz-serif); transform: rotate(-1.4deg);
  background-image: repeating-linear-gradient(0deg, transparent 0 27px, rgba(0, 0, 0, 0.018) 27px 28px);
}
.paper-mast {
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 8px;
  padding-block: 5px; border-block: 1px solid var(--newsprint);
  font: 600 0.58rem/1.2 var(--font-sans); letter-spacing: 0.12em;
}
.paper-mast b { font: 900 1.05rem/1 var(--gz-serif); letter-spacing: 0; text-align: center; }
.paper-mast span:last-child { text-align: right; }
.paper-kicker { margin: 10px 0 2px; font: 700 0.6rem var(--font-sans); letter-spacing: 0.16em; color: var(--stamp); }
.paper-head { margin: 0; font: 900 clamp(1.5rem, 1.1rem + 1.6vw, 2.05rem)/1.04 var(--gz-serif); color: var(--newsprint); text-wrap: balance; }
.ph-line { display: inline; }
.paper-quote { margin: 8px 0 10px; font: italic 0.82rem/1.45 var(--gz-serif); color: var(--newsprint); }
.paper-quote i { font-style: normal; font: 500 0.68rem var(--font-sans); color: var(--newsprint-soft); }
.paper-stats { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; padding-block: 8px; border-block: 3px double var(--newsprint); text-align: center; }
.paper-stats div + div { border-left: 1px solid var(--paper-edge); }
.paper-stats dt { font: 600 0.58rem var(--font-sans); letter-spacing: 0.1em; text-transform: uppercase; color: var(--newsprint-soft); }
.paper-stats dd { margin: 2px 0 0; font: 900 1.55rem/1 var(--gz-serif); font-variant-numeric: tabular-nums; }
.paper-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 10px; }
.paper-cols i { display: block; height: 30px; background: repeating-linear-gradient(0deg, rgba(27, 26, 23, 0.28) 0 2px, transparent 2px 6px); }
.paper-stamp {
  position: absolute; right: 12px; bottom: 30px; max-width: 150px; padding: 6px 10px;
  border: 2px solid var(--stamp); border-radius: 6px; color: var(--stamp);
  font: 800 0.62rem/1.25 var(--font-sans); letter-spacing: 0.06em; text-align: center; text-transform: uppercase;
  background: rgba(246, 241, 228, 0.82); transform: rotate(-9deg);
}

/* Animation: sheet slides in and settles, headline lines wipe in, stamp thuds. */
@media (prefers-reduced-motion: no-preference) {
  .paper-sheet { animation: paper-in 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) both; }
  .ph-line { display: inline-block; clip-path: inset(0 100% 0 0); animation: wipe 0.7s ease-out forwards; }
  .ph-line:nth-child(1) { animation-delay: 0.55s; }
  .ph-line:nth-child(2) { animation-delay: 0.95s; }
  .paper-quote, .paper-stats, .paper-cols { opacity: 0; animation: fade-up 0.6s ease-out forwards; }
  .paper-quote { animation-delay: 1.3s; }
  .paper-stats { animation-delay: 1.55s; }
  .paper-cols { animation-delay: 1.8s; }
  .paper-cols i { transform-origin: left; animation: ink 0.8s ease-out 1.9s both; }
  .paper-stamp { opacity: 0; animation: thud 0.45s cubic-bezier(0.2, 1.4, 0.4, 1) 2.2s forwards; }
  .paper-sheet:hover { transform: rotate(0deg) translateY(-3px); transition: transform 0.4s ease; }
}
@keyframes paper-in { from { opacity: 0; transform: translateY(46px) rotate(5deg) scale(0.94); } to { opacity: 1; transform: rotate(-1.4deg); } }
@keyframes wipe { to { clip-path: inset(0 0 0 0); } }
@keyframes fade-up { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes ink { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes thud { 0% { opacity: 0; transform: rotate(-9deg) scale(2.2); } 100% { opacity: 1; transform: rotate(-9deg) scale(1); } }

/* ------------------------------------------------------------- sources */
.ru-sources { list-style: none; margin: clamp(18px, 2.4vw, 28px) 0 0; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--hairline-soft); }
.ru-sources li { display: grid; grid-template-columns: 5.5em 1fr; gap: 2px 12px; padding: 10px 0; border-bottom: 1px solid var(--hairline-soft); font-size: var(--text-sm); color: var(--ink-soft); }
.ru-sources b { grid-row: span 2; color: var(--ink); font-variant-numeric: tabular-nums; }
.ru-sources a, .ru-sources em { font-size: var(--text-xs); font-style: normal; color: var(--brand); }
.ru-sources em { color: var(--ink-muted); }
.ru-note { margin-top: var(--space-3, 12px); font-size: var(--text-xs); color: var(--ink-muted); max-width: 70ch; }
.ru-note a { color: inherit; text-decoration: underline; }

/* -------------------------------------------- mobile: form must be one tap away */
.ru-sticky { display: none; }
@media (max-width: 900px) {
  .ru-grid { grid-template-columns: minmax(0, 1fr); }
  .ru-ask { position: static; }
  .ru-jump { display: inline-flex; }
  .ru-sticky {
    position: fixed; z-index: 30; left: 16px; right: 16px; bottom: max(16px, env(safe-area-inset-bottom));
    display: flex; justify-content: center; padding: 14px 18px; border-radius: 999px;
    background: var(--brand); color: #fff; font-weight: 650; text-decoration: none;
    box-shadow: 0 10px 26px -8px rgba(10, 99, 196, 0.6); transition: opacity 0.25s, transform 0.25s;
  }
  .ru-sticky.is-hidden { opacity: 0; transform: translateY(20px); pointer-events: none; }
  .ruian-page footer { padding-bottom: 88px; }
}
@media (max-width: 480px) {
  .paper-sheet { padding-inline: 12px; }
  .paper-stamp { position: static; display: inline-block; margin-top: 10px; transform: rotate(-4deg); }
}