/* roulang page: index */
:root {
  --bg: #F3F7FB;
  --card: #FFFFFF;
  --ink: #245C86;
  --ink-2: #1C4C6E;
  --muted: #6E90AD;
  --accent: #1F7A8C;
  --text: #243140;
  --sub: #5C6B7A;
  --line: #D5E2EE;
  --line-2: #E3EDF5;
  --err: #B85C5C;
  --soft: #E5F4F6;
  --band: #E7F1F8;
  --shadow: 0 10px 28px rgba(36, 92, 134, .10);
  --shadow-2: 0 14px 32px rgba(36, 92, 134, .16);
  --r: 12px;
  --r-sm: 10px;
  --r-btn: 8px;
  --max: 1120px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16.5px;
  line-height: 1.75;
}
img, svg { max-width: 100%; display: block; }
button, input, select { font-family: inherit; font-size: inherit; }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--accent); }
p { margin: 0 0 12px; }
p:last-child { margin-bottom: 0; }
h1, h2, h3 { margin: 0; line-height: 1.35; font-weight: 680; color: var(--text); }
h1 { font-size: 44px; letter-spacing: 0; }
h2 { font-size: 28px; }
h3 { font-size: 19px; }
a:focus, button:focus, input:focus, select:focus, summary:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
::selection { background: #d5eef2; color: var(--text); }
[hidden] { display: none !important; }
.skip {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 20;
  background: var(--ink);
  color: #fff;
  padding: 8px 12px;
  border-radius: var(--r-btn);
}
.skip:focus { top: 10px; color: #fff; }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.age-bar {
  background: #E7EEF5;
  color: var(--ink);
  text-align: center;
  font-size: 12px;
  letter-spacing: .04em;
  padding: 7px 16px;
  border-bottom: 1px solid var(--line);
}
.site-header { padding: 18px 0 8px; }
.nav-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  padding: 14px 20px;
}
.brand { display: flex; flex-direction: column; min-width: 168px; text-decoration: none; }
.brand:hover { color: inherit; }
.brand-name { color: var(--ink); font-size: 18px; font-weight: 680; line-height: 1.3; }
.brand-issue { color: var(--muted); font-size: 12px; margin-top: 2px; }
.nav-pills {
  display: flex;
  gap: 8px;
  flex: 1;
  min-width: 0;
}
.nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  background: #fff;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 8px 10px;
  font-size: 14px;
  line-height: 1.2;
}
.nav-pill svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.8; }
.nav-pill:hover { border-color: var(--accent); color: var(--accent); }
.nav-pill.is-active { background: var(--soft); color: var(--accent); border-color: var(--accent); }
.nav-pill:active { transform: translateY(1px); }
.nav-cta { flex: 0 0 auto; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 42px;
  padding: 8px 16px;
  border-radius: var(--r-btn);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  font-size: 15px;
  line-height: 1.2;
  transition: background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.btn-primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-primary:hover { background: var(--ink-2); border-color: var(--ink-2); color: #fff; }
.btn-primary:active { background: #173E5A; color: #fff; }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--muted); }
.btn-ghost:hover { color: var(--accent); border-color: var(--accent); }
.btn-ghost:active { background: var(--soft); }
.btn:disabled, .btn[disabled] { background: #9BB0C2; border-color: #9BB0C2; color: #fff; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-ghost:disabled { background: #F3F7FB; color: #9BB0C2; }
.block { padding: 88px 0; }
.block-alt { background: var(--band); }
.mast { padding: 28px 0 80px; }
.grid-12 { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 22px; }
.s7 { grid-column: span 7; }
.s5 { grid-column: span 5; }
.s4 { grid-column: span 4; }
.s3 { grid-column: span 3; }
.kicker { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; color: var(--muted); font-size: 12px; }
.issue-tag {
  display: inline-flex;
  align-items: center;
  background: var(--soft);
  color: var(--accent);
  border-radius: var(--r-btn);
  padding: 2px 8px;
  font-size: 12px;
}
.date-line, .col-mark { color: var(--muted); }
.v-rule { width: 1px; height: 12px; background: var(--line); display: inline-block; }
.mast-copy { border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); padding: 26px 8px 28px 0; }
h1 .h1-line { display: block; width: 64px; height: 3px; background: var(--ink); margin-top: 14px; }
.lead-one { margin-top: 18px; color: var(--ink); font-size: 18px; }
.intro { margin-top: 12px; color: var(--sub); max-width: 640px; }
.btn-row { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }
.letter-card, .card, .stat-card, .step-card, .case-card, .series-card, .source-card, .quote-card, .form-card, .promise-bar, .compare-card, .calendar, .faq-item {
  background: var(--card);
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  box-shadow: var(--shadow);
}
.letter-card { padding: 22px 22px 8px; position: relative; }
.letter-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
  margin-bottom: 4px;
}
.letter-label { color: var(--ink); font-weight: 680; font-size: 18px; }
.letter-meta { color: var(--muted); font-size: 12px; }
.dir-row {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: var(--text);
}
.dir-row:last-child { border-bottom: 0; }
.dir-no { color: var(--muted); font-size: 12px; }
.dir-title { font-size: 16px; }
.dir-meta { color: var(--muted); font-size: 12px; }
.dir-row:hover .dir-title { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.section-head { margin-bottom: 26px; max-width: 760px; }
.section-head.with-side { display: flex; justify-content: space-between; gap: 24px; align-items: flex-end; max-width: none; }
.section-kicker { color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.section-desc { margin-top: 12px; color: var(--sub); font-size: 16px; }
.head-side { color: var(--muted); font-size: 13px; white-space: nowrap; padding-bottom: 4px; }
.card { padding: 26px 28px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.card:hover, .case-card:hover, .series-card:hover, .source-card:hover, .quote-card:hover, .stat-card:hover, .step-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  border-color: var(--accent);
}
.card-wide { border-left: 3px solid var(--ink); }
.card p, .series-card p, .quote-card p, .step-card p, .case-desc { color: var(--sub); font-size: 15px; }
.card h3, .step-card h3, .series-card h3 { margin-bottom: 8px; }
.tag {
  display: inline-block;
  background: var(--soft);
  color: var(--accent);
  border-radius: var(--r-btn);
  padding: 2px 8px;
  font-size: 12px;
  margin-bottom: 10px;
}
.text-link { display: inline-block; margin-top: 14px; color: var(--ink); font-size: 14px; border-bottom: 1px solid transparent; }
.text-link:hover { color: var(--accent); border-bottom-color: var(--accent); }
.compare-card { padding: 8px 8px 4px; overflow-x: auto; }
.compare-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.compare-table th, .compare-table td { text-align: left; padding: 16px 18px; border-bottom: 1px solid var(--line); font-size: 15px; }
.compare-table th { color: var(--muted); font-size: 13px; font-weight: 680; background: #F7FBFE; }
.compare-table tr:last-child td { border-bottom: 0; }
.compare-table td:first-child { color: var(--ink); font-weight: 680; }
.stat-grid, .step-grid, .source-grid { display: grid; gap: 18px; }
.stat-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat-card { padding: 26px 22px; }
.stat-num { font-size: 42px; color: var(--ink); font-weight: 680; letter-spacing: 0; font-variant-numeric: tabular-nums; line-height: 1; }
.stat-unit { margin-left: 4px; color: var(--accent); font-size: 16px; }
.stat-note { display: block; margin-top: 10px; color: var(--sub); font-size: 13px; }
.step-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.step-card { padding: 22px 20px 24px; min-height: 230px; }
.step-no { display: block; color: var(--muted); font-size: 12px; margin-bottom: 12px; }
.case-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 20px; align-items: start; }
.case-card {
  display: block;
  padding: 18px 18px 20px;
  color: var(--text);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.case-card:hover { color: var(--text); }
.cover { display: block; height: 96px; border-radius: var(--r-btn); margin-bottom: 14px; position: relative; background: #d7e6f2; overflow: hidden; }
.cover::before, .cover::after { content: ""; position: absolute; left: 16px; height: 4px; border-radius: 2px; }
.cover::before { top: 30px; width: 62%; background: var(--ink); }
.cover::after { top: 44px; width: 46%; background: var(--accent); }
.cover-b { height: 78px; background: #d9eef0; }
.cover-c { height: 124px; background: #e5eef6; }
.cover-d { height: 88px; background: #d5e4ef; }
.cover-e { height: 112px; background: #e7f3f4; }
.cover-f { height: 74px; background: #e3edf6; }
.case-issue, .case-date, .news-no, .news-date { color: var(--muted); font-size: 12px; }
.case-title { display: block; font-size: 18px; font-weight: 680; margin: 4px 0 8px; }
.case-card:hover .case-title { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.series-card { display: block; padding: 26px 28px; color: var(--text); min-height: 180px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.series-card:hover { color: var(--text); }
.series-card:hover h3 { color: var(--accent); }
.series-side { display: grid; gap: 20px; }
.series-main { min-height: 100%; }
.news-list { background: var(--card); border: 1px solid var(--line-2); border-radius: var(--r); box-shadow: var(--shadow); }
.news-row {
  display: grid;
  grid-template-columns: 88px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  color: var(--text);
}
.news-row:hover { background: #F8FBFE; }
.news-row:hover .news-title { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.news-title { font-size: 16px; }
.news-more-wrap { margin: 18px 0 0; }
.rhythm-notes { display: grid; gap: 14px; }
.note-row { padding: 18px 20px; }
.note-row strong { display: block; color: var(--ink); font-size: 14px; margin-bottom: 4px; }
.calendar { padding: 20px; }
.cal-head { display: flex; justify-content: space-between; color: var(--ink); font-weight: 680; margin-bottom: 12px; }
.cal-head span { color: var(--muted); font-size: 12px; font-weight: 400; }
.cal-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 6px; }
.cal-grid span { text-align: center; font-size: 13px; color: var(--sub); padding: 8px 0; border-radius: var(--r-btn); }
.cal-grid .wk { color: var(--muted); font-size: 12px; }
.cal-grid .is-update { background: var(--soft); color: var(--accent); font-weight: 680; }
.cal-grid .is-today { box-shadow: inset 0 0 0 1px var(--accent); }
.source-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.source-card { padding: 20px 16px; }
.source-card strong { display: block; color: var(--ink); margin-bottom: 6px; }
.source-card span { color: var(--sub); font-size: 13px; }
.quote-card { padding: 28px; }
.quote-card q { display: block; font-size: 18px; line-height: 1.7; color: var(--text); quotes: none; }
.quote-card span { display: block; margin-top: 14px; color: var(--muted); font-size: 12px; }
.quote-narrow q { font-size: 16px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 0; overflow: hidden; }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 48px 16px 20px;
  position: relative;
  font-weight: 680;
  color: var(--text);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 14px;
  color: var(--accent);
  font-size: 20px;
}
.faq-item[open] summary::after { content: "–"; }
.faq-item[open] summary { color: var(--ink); }
.faq-a { padding: 0 20px 16px; color: var(--sub); border-top: 1px solid var(--line); }
.faq-a p { padding-top: 12px; }
.promise-bar { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); padding: 8px 0; }
.promise-item { padding: 18px 22px; border-right: 1px solid var(--line); }
.promise-item:last-child { border-right: 0; }
.promise-item strong { display: block; color: var(--ink); margin-bottom: 4px; }
.promise-item span { color: var(--sub); font-size: 14px; }
.contact-copy { padding-top: 8px; color: var(--sub); }
.form-card { padding: 26px 26px 28px; }
.form-card h3 { margin-bottom: 14px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--text); }
.field input, .field select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--r-btn);
  background: #fff;
  color: var(--text);
  padding: 8px 12px;
}
.field input:hover, .field select:hover { border-color: var(--muted); }
.field.is-invalid input, .field.is-invalid select { border-color: var(--err); background: #FDF8F8; }
.field-error { color: var(--err); font-size: 12px; margin: 6px 0 0; line-height: 1.5; }
.form-success { background: var(--soft); border-radius: var(--r-btn); padding: 14px 14px 12px; margin-bottom: 14px; color: var(--accent); }
.form-success strong { display: block; margin-bottom: 4px; }
.form-success p { color: var(--text); }
.site-footer { border-top: 2px solid var(--ink); padding: 36px 0 28px; background: #F8FBFE; }
.foot-grid { display: grid; grid-template-columns: 1.5fr .8fr 1.15fr .9fr; gap: 28px; }
.foot-brand strong { display: block; color: var(--ink); font-size: 18px; margin-bottom: 8px; }
.foot-brand p, .foot-col p { color: var(--sub); font-size: 14px; }
.foot-col { display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.foot-col b { color: var(--text); font-weight: 680; margin-bottom: 4px; }
.foot-col a { color: var(--sub); }
.foot-col a:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.copy-line { margin-top: 26px; color: var(--muted); font-size: 12px; }
@media (max-width: 1199px) {
  .container { width: 92%; }
  .nav-pill { padding: 8px 8px; font-size: 13px; }
  .brand-name { font-size: 16px; }
}
@media (max-width: 992px) {
  h1 { font-size: 36px; }
  .source-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .stat-num { font-size: 36px; }
}
@media (max-width: 768px) {
  .block { padding: 64px 0; }
  .container { width: auto; margin: 0 16px; }
  .nav-card { flex-direction: column; align-items: stretch; }
  .nav-pills { overflow-x: auto; padding-bottom: 4px; }
  .nav-cta { width: 100%; }
  .s7, .s5, .s4, .s3 { grid-column: span 12; }
  .section-head.with-side, .btn-row, .letter-top, .cal-head { display: block; }
  .head-side { margin-top: 8px; }
  .stat-grid, .step-grid, .case-grid, .quote-grid, .source-grid, .promise-bar, .foot-grid, .series-side { grid-template-columns: 1fr; }
  .promise-item { border-right: 0; border-top: 1px solid var(--line); }
  .promise-item:first-child { border-top: 0; }
  h1 { font-size: 30px; }
  h2 { font-size: 24px; }
  .mast-copy { padding-right: 0; }
}
@media (max-width: 520px) {
  .news-row, .dir-row { grid-template-columns: 1fr; gap: 2px; }
  .case-title { font-size: 17px; }
  .card, .series-card, .quote-card, .form-card { padding: 20px 16px; }
}
@media (max-width: 480px) {
  .btn, .btn-row .btn, .field input, .field select { width: 100%; }
  .v-rule { display: none; }
  .age-bar { font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* roulang page: category1 */
:root {
 --bg: #F3F7FB;
 --card: #FFFFFF;
 --ink: #245C86;
 --ink-2: #1C4C6E;
 --muted: #6E90AD;
 --accent: #1F7A8C;
 --text: #243140;
 --sub: #5C6B7A;
 --line: #D5E2EE;
 --line-2: #E3EDF5;
 --err: #B85C5C;
 --soft: #E5F4F6;
 --band: #E7F1F8;
 --shadow: 0 10px 28px rgba(36, 92, 134, .10);
 --shadow-2: 0 14px 32px rgba(36, 92, 134, .16);
 --r: 12px;
 --r-sm: 10px;
 --r-btn: 8px;
 --max: 1120px;
}
/* roulang page: category1 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 background: var(--bg);
 color: var(--text);
 font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
 font-size: 16.5px;
 line-height: 1.75;
}
img, svg { max-width: 100%; display: block; }
button, input, select { font-family: inherit; font-size: inherit; }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--accent); }
a:focus, button:focus, input:focus, select:focus, summary:focus {
 outline: 2px solid var(--accent);
 outline-offset: 2px;
}
h1, h2, h3, p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.age-bar {
 background: var(--ink);
 color: #fff;
 text-align: center;
 font-size: 12px;
 line-height: 1.6;
 padding: 6px 16px;
}
.site-header { padding: 18px 0 8px; }
.nav-card {
 display: flex;
 align-items: center;
 gap: 16px;
 background: var(--card);
 border: 1px solid var(--line-2);
 border-radius: var(--r);
 box-shadow: var(--shadow);
 padding: 14px 20px;
}
.brand { display: flex; flex-direction: column; min-width: 168px; text-decoration: none; }
.brand:hover { color: inherit; }
.brand-name { color: var(--ink); font-size: 18px; font-weight: 680; line-height: 1.3; }
.brand-issue { color: var(--muted); font-size: 12px; margin-top: 2px; }
.nav-pills { display: flex; gap: 8px; flex: 1; min-width: 0; }
.nav-pill {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 flex: 0 0 auto;
 background: #fff;
 color: var(--text);
 border: 1px solid var(--line);
 border-radius: var(--r-sm);
 padding: 8px 10px;
 font-size: 14px;
 line-height: 1.2;
}
.nav-pill svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.8; }
.nav-pill:hover { border-color: var(--accent); color: var(--accent); }
.nav-pill.is-active { background: var(--soft); color: var(--accent); border-color: var(--accent); }
.nav-pill:active { transform: translateY(1px); }
.nav-cta { flex: 0 0 auto; }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 6px;
 min-height: 42px;
 padding: 8px 16px;
 border-radius: var(--r-btn);
 border: 1px solid transparent;
 cursor: pointer;
 text-decoration: none;
 font-size: 15px;
 line-height: 1.2;
 transition: background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.btn-primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-primary:hover { background: var(--ink-2); border-color: var(--ink-2); color: #fff; }
.btn-primary:active { background: #173E5A; color: #fff; }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--muted); }
.btn-ghost:hover { color: var(--accent); border-color: var(--accent); }
.btn-ghost:active { background: var(--soft); }
.btn:disabled, .btn[disabled] { background: #9BB0C2; border-color: #9BB0C2; color: #fff; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-ghost:disabled, .btn-ghost[disabled] { background: #F3F7FB; color: #9BB0C2; border-color: #D5E2EE; }
.issue-tag, .tag {
 display: inline-flex;
 align-items: center;
 background: var(--soft);
 color: var(--accent);
 border-radius: var(--r-btn);
 padding: 2px 8px;
 font-size: 12px;
}
.tag { margin-bottom: 8px; }
.section-kicker, .letter-meta, .date-line { color: var(--muted); font-size: 12px; }
.section-head { margin-bottom: 26px; max-width: 760px; }
.section-desc, .card p, .def-card p, .scope-line { color: var(--sub); font-size: 15px; }
h1 {
 font-size: 44px;
 font-weight: 680;
 color: var(--ink);
 line-height: 1.25;
 letter-spacing: 0;
 border-bottom: 1px solid var(--ink);
 display: inline-block;
 padding-bottom: 8px;
}
h2 { font-size: 28px; font-weight: 680; color: var(--text); line-height: 1.35; }
h3 { font-size: 19px; font-weight: 680; color: var(--text); line-height: 1.4; }
.card, .def-card, .letter-card, .faq-item, .action-bar, .jp-card {
 background: var(--card);
 border: 1px solid var(--line-2);
 border-radius: var(--r);
 box-shadow: var(--shadow);
}
.panel {
 padding: 84px 0;
}
.panel-band {
 background: #fff;
 border-top: 1px solid var(--line);
 border-bottom: 1px solid var(--line);
}
.cat-head { padding: 56px 0 28px; }
.cat-head-grid {
 display: grid;
 grid-template-columns: minmax(0, 1fr) 220px;
 gap: 28px;
 align-items: end;
}
.scope-line { margin-top: 16px; max-width: 640px; }
.issue-side {
 background: var(--card);
 border: 1px solid var(--line-2);
 border-left: 1px solid var(--ink);
 border-radius: var(--r);
 box-shadow: var(--shadow);
 padding: 22px 22px 18px;
 display: flex;
 flex-direction: column;
 gap: 6px;
}
.issue-side strong {
 font-size: 40px;
 line-height: 1;
 color: var(--ink);
 font-weight: 680;
}
.issue-side span:last-child { color: var(--muted); font-size: 13px; }
.filter-sec { padding: 8px 0 28px; }
.filter-bar {
 display: flex;
 gap: 10px;
 flex-wrap: wrap;
 background: var(--card);
 border: 1px solid var(--line-2);
 border-radius: var(--r);
 box-shadow: var(--shadow);
 padding: 14px;
}
.filter-link {
 display: inline-flex;
 align-items: center;
 min-height: 36px;
 padding: 6px 12px;
 border-radius: var(--r-btn);
 border: 1px solid var(--line);
 background: #fff;
 color: var(--text);
 font-size: 14px;
}
.filter-link:hover, .filter-link:focus, .filter-link.is-on {
 background: var(--soft);
 color: var(--accent);
 border-color: var(--accent);
}
.list-sec { padding: 72px 0 80px; }
.jp-list { display: flex; flex-direction: column; gap: 16px; }
.jp-card {
 display: grid;
 grid-template-columns: 168px minmax(0, 1fr);
 gap: 18px;
 padding: 16px;
 color: var(--text);
 transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
 scroll-margin-top: 16px;
}
.jp-card:hover {
 transform: translateY(-2px);
 box-shadow: var(--shadow-2);
 border-color: var(--accent);
 color: var(--text);
}
.jp-cover {
 background: var(--band);
 border-radius: 8px;
 min-height: 112px;
 padding: 12px;
 display: flex;
 flex-direction: column;
 justify-content: space-between;
}
.jp-cover svg { width: 100%; height: 64px; }
.jp-cover span { color: var(--accent); font-size: 12px; }
.jp-body { min-width: 0; padding-top: 2px; }
.jp-top {
 display: flex;
 justify-content: space-between;
 gap: 12px;
 align-items: center;
 margin-bottom: 8px;
}
.jp-no { color: var(--muted); font-size: 12px; }
.jp-title {
 display: block;
 font-size: 18px;
 font-weight: 680;
 color: var(--text);
 margin: 4px 0 8px;
}
.jp-card:hover .jp-title { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.jp-meta { color: var(--sub); font-size: 14px; }
.pager {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
 margin-top: 22px;
 padding-top: 8px;
}
.page-note { color: var(--muted); font-size: 13px; min-height: 1.6em; }
.def-grid {
 display: grid;
 grid-template-columns: 1.2fr .9fr .9fr;
 gap: 18px;
}
.def-card { padding: 26px 24px 28px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.def-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); border-color: var(--accent); }
.def-card h3 { margin: 8px 0; }
.def-card:first-child { border-top: 3px solid var(--ink); }
.rhythm-card { padding: 8px 22px; }
.dir-row {
 display: grid;
 grid-template-columns: 72px minmax(0, 1fr) auto;
 gap: 12px;
 align-items: center;
 padding: 16px 0;
 border-bottom: 1px solid var(--line);
}
.dir-row:last-child { border-bottom: 0; }
.dir-title { font-size: 16px; color: var(--text); }
.dir-meta { color: var(--muted); font-size: 12px; white-space: nowrap; }
.related-card { padding: 6px 22px 8px; }
.related-row {
 display: grid;
 grid-template-columns: 72px minmax(0, 1fr) auto;
 gap: 12px;
 align-items: center;
 padding: 16px 0;
 border-bottom: 1px solid var(--line);
 color: var(--text);
}
.related-row:last-child { border-bottom: 0; }
.related-row:hover .dir-title { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { padding: 0 22px; }
.faq-item summary {
 list-style: none;
 cursor: pointer;
 padding: 16px 0;
 font-weight: 680;
 color: var(--text);
 display: flex;
 justify-content: space-between;
 gap: 16px;
 align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--accent); font-weight: 680; }
.faq-item[open] summary::after { content: "–"; }
.faq-item[open] { border-color: var(--accent); }
.faq-item p { color: var(--sub); padding: 0 0 16px; font-size: 15px; }
.action-sec { padding: 28px 0 88px; }
.action-bar {
 display: flex;
 justify-content: space-between;
 align-items: center;
 gap: 20px;
 padding: 26px 28px;
 border-top: 1px solid var(--ink);
}
.action-bar h2 { font-size: 26px; margin-bottom: 6px; }
.action-links { display: flex; gap: 12px; flex-wrap: wrap; }
.field-error { color: var(--err); font-size: 12px; margin-top: 4px; }
.site-footer {
 background: var(--bg);
 border-top: 1px solid var(--ink);
 padding: 36px 0 28px;
}
.foot-grid {
 display: grid;
 grid-template-columns: 1.4fr .8fr 1fr .7fr;
 gap: 28px;
}
.foot-brand strong { display: block; color: var(--ink); font-size: 18px; font-weight: 680; margin-bottom: 8px; }
.foot-brand p, .foot-col p { color: var(--sub); font-size: 14px; }
.foot-col { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.foot-col b { color: var(--text); font-size: 14px; }
.foot-col a { color: var(--ink); font-size: 14px; border-bottom: 1px solid transparent; }
.foot-col a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.copy-line { margin-top: 28px; color: var(--muted); font-size: 12px; }
@media (max-width: 1199px) {
 .container { width: 92%; }
}
@media (max-width: 992px) {
 .cat-head-grid, .def-grid { grid-template-columns: 1fr; }
 .issue-side { max-width: 280px; }
 h1 { font-size: 36px; }
}
@media (max-width: 768px) {
 .nav-card { flex-direction: column; align-items: stretch; }
 .nav-pills { overflow-x: auto; padding-bottom: 4px; }
 .nav-cta { width: 100%; }
 .brand { min-width: 0; }
 h1 { font-size: 30px; }
 h2 { font-size: 24px; }
 .panel, .list-sec { padding: 56px 0; }
 .jp-card { grid-template-columns: 120px minmax(0, 1fr); }
 .action-bar, .foot-grid { grid-template-columns: 1fr; display: grid; }
 .dir-row, .related-row { grid-template-columns: 56px minmax(0, 1fr); }
 .dir-meta { grid-column: 2; }
}
@media (max-width: 480px) {
 .container { width: calc(100% - 28px); }
 .jp-card { grid-template-columns: 1fr; }
 .issue-side { border-left: 0; max-width: none; }
 .pager, .action-links { flex-direction: column; align-items: stretch; }
 .btn, .filter-link { width: 100%; }
 .filter-bar { flex-direction: column; }
 .jp-top { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
 * { transition: none !important; scroll-behavior: auto !important; }
}

/* roulang page: category2 */
:root {
  --bg: #F3F7FB;
  --card: #FFFFFF;
  --ink: #245C86;
  --ink-2: #1C4C6E;
  --muted: #6E90AD;
  --accent: #1F7A8C;
  --text: #243140;
  --sub: #5C6B7A;
  --line: #D5E2EE;
  --line-2: #E3EDF5;
  --err: #B85C5C;
  --soft: #E5F4F6;
  --band: #E7F1F8;
  --shadow: 0 10px 28px rgba(36, 92, 134, .10);
  --shadow-2: 0 14px 32px rgba(36, 92, 134, .16);
  --r: 12px;
  --r-sm: 10px;
  --r-btn: 8px;
  --max: 1120px;
}
/* roulang page: category2 */
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16.5px;
  line-height: 1.75;
}
img, svg { max-width: 100%; display: block; }
button, input, select { font-family: inherit; font-size: inherit; }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--accent); }
a:focus, button:focus, input:focus, select:focus, summary:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
h1, h2, h3, p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1 { font-size: 44px; font-weight: 680; color: var(--ink); line-height: 1.25; letter-spacing: 0; }
h2 { font-size: 28px; font-weight: 680; color: var(--ink); line-height: 1.35; }
h3 { font-size: 19px; font-weight: 680; color: var(--text); line-height: 1.4; }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.age-bar {
  background: var(--ink);
  color: #fff;
  font-size: 12px;
  line-height: 1.6;
  text-align: center;
  padding: 6px 16px;
}
.site-header { padding: 0 0 8px; }
.site-header .container { padding-top: 18px; }
.nav-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  padding: 14px 20px;
}
.brand { display: flex; flex-direction: column; min-width: 168px; text-decoration: none; }
.brand:hover { color: inherit; }
.brand-name { color: var(--ink); font-size: 18px; font-weight: 680; line-height: 1.3; }
.brand-issue { color: var(--muted); font-size: 12px; margin-top: 2px; }
.nav-pills {
  display: flex;
  gap: 8px;
  flex: 1;
  min-width: 0;
}
.nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  background: #fff;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 8px 10px;
  font-size: 14px;
  line-height: 1.2;
  transition: border-color .2s ease, color .2s ease, background .2s ease, transform .2s ease;
}
.nav-pill svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.nav-pill:hover { border-color: var(--accent); color: var(--accent); }
.nav-pill.is-active { background: var(--soft); color: var(--accent); border-color: var(--accent); }
.nav-pill:active { transform: translateY(1px); }
.nav-cta { flex: 0 0 auto; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 42px;
  padding: 8px 16px;
  border-radius: var(--r-btn);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  font-size: 15px;
  line-height: 1.2;
  transition: background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.btn-primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-primary:hover { background: var(--ink-2); border-color: var(--ink-2); color: #fff; }
.btn-primary:active { background: #173E5A; color: #fff; }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--muted); }
.btn-ghost:hover { color: var(--accent); border-color: var(--accent); }
.btn-ghost:active { background: var(--soft); }
.btn:disabled, .btn[disabled] { background: #9BB0C2; border-color: #9BB0C2; color: #fff; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-ghost:disabled { background: #F3F7FB; color: #9BB0C2; }
.issue-tag {
  display: inline-flex;
  align-items: center;
  background: var(--soft);
  color: var(--accent);
  border-radius: var(--r-btn);
  padding: 2px 8px;
  font-size: 12px;
}
.date-line { color: var(--muted); font-size: 12px; }
.page-section { padding: 84px 0; }
.page-section.band { background: var(--band); }
.kr-mast { padding: 36px 0 8px; background: var(--bg); }
.kr-mast-line {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 28px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
  padding: 28px 4px 22px;
}
.kr-kicker { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.kr-mast h1::after {
  content: "";
  display: block;
  width: 56px;
  height: 2px;
  background: var(--ink);
  margin-top: 14px;
}
.kr-mast-issue {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0;
  padding-bottom: 6px;
  border-left: 1px solid var(--line);
  padding-left: 22px;
  white-space: nowrap;
}
.section-head { margin-bottom: 26px; max-width: 760px; }
.section-kicker { color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.section-desc { margin-top: 12px; color: var(--sub); font-size: 16px; }
.letter-card, .series-card, .proof-card, .rel-card, .guard-bar, .remind-bar {
  background: var(--card);
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  box-shadow: var(--shadow);
}
.letter-card { padding: 8px 28px 12px; }
.guide-row {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.guide-row:last-child { border-bottom: 0; }
.dir-no { color: var(--muted); font-size: 13px; }
.guide-row strong { display: block; color: var(--text); font-size: 17px; font-weight: 680; }
.guide-row p { color: var(--sub); font-size: 15px; margin-top: 4px; }
.dir-meta { color: var(--muted); font-size: 12px; white-space: nowrap; }
.timeline-card { padding: 12px 22px 12px 28px; position: relative; }
.kr-timeline { position: relative; }
.kr-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 18px;
  bottom: 18px;
  width: 1px;
  background: var(--line);
}
.kr-time-item {
  display: grid;
  grid-template-columns: 16px 128px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 18px 8px;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  transition: border-color .2s ease, transform .2s ease;
}
.kr-time:last-child .kr-time-item { border-bottom: 0; }
.kr-time-item:hover { color: var(--text); }
.kr-time-item:hover .kr-time-title { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.kr-dot {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--soft);
  position: relative;
  z-index: 1;
}
.kr-date { color: var(--muted); font-size: 13px; }
.kr-time-title { display: block; font-size: 18px; font-weight: 680; line-height: 1.4; }
.kr-note { display: block; color: var(--sub); font-size: 14px; margin-top: 2px; }
.tag {
  display: inline-block;
  background: var(--soft);
  color: var(--accent);
  border-radius: var(--r-btn);
  padding: 2px 8px;
  font-size: 12px;
  line-height: 1.6;
}
.series-split { display: grid; grid-template-columns: 1.35fr .85fr; gap: 22px; align-items: start; }
.series-card {
  display: block;
  padding: 28px 28px 24px;
  color: var(--text);
  min-height: 220px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.series-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  border-color: var(--accent);
  color: var(--text);
}
.series-card .tag { margin-bottom: 14px; }
.series-card h3 { margin-bottom: 10px; }
.series-card p { color: var(--sub); font-size: 15px; }
.series-card .text-link { margin-top: 18px; }
.text-link { display: inline-block; color: var(--ink); font-size: 14px; border-bottom: 1px solid transparent; }
.series-card:hover .text-link { color: var(--accent); border-bottom-color: var(--accent); }
.proof-card { padding: 8px 28px 12px; }
.proof-head, .proof-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 24px;
}
.proof-head {
  color: var(--muted);
  font-size: 12px;
  padding: 16px 0 10px;
  border-bottom: 1px solid var(--ink);
}
.proof-row {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.proof-row:last-child { border-bottom: 0; }
.proof-name { color: var(--ink); font-weight: 680; font-size: 16px; }
.proof-note { color: var(--sub); font-size: 15px; }
.rel-card { padding: 6px 8px; }
.rel-item {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 18px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  transition: background .2s ease, color .2s ease;
}
.rel-item:last-child { border-bottom: 0; }
.rel-item:hover { background: #F8FBFD; color: var(--text); }
.rel-item:hover .rel-title { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.rel-no { color: var(--muted); font-size: 13px; }
.rel-title { display: block; font-size: 17px; font-weight: 680; }
.rel-sub { display: block; color: var(--sub); font-size: 14px; }
.rel-date { color: var(--muted); font-size: 12px; }
.guard-bar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 8px 8px;
}
.guard-item { padding: 22px 24px; }
.guard-item + .guard-item { border-left: 1px solid var(--line); }
.guard-item b { display: block; color: var(--ink); font-size: 16px; margin-bottom: 6px; }
.guard-item p { color: var(--sub); font-size: 15px; }
.remind-bar {
  display: grid;
  grid-template-columns: 1.05fr 1.35fr;
  gap: 32px;
  align-items: center;
  padding: 32px;
}
.remind-bar h2 { margin-bottom: 8px; }
.remind-bar .section-desc { margin-top: 0; }
.remind-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 10px 12px;
  align-items: center;
}
.remind-form label { grid-column: 1 / -1; color: var(--muted); font-size: 13px; }
.remind-form input {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--r-btn);
  padding: 8px 12px;
  color: var(--text);
  background: #fff;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.remind-form input:hover { border-color: var(--muted); }
.remind-form input:focus { border-color: var(--accent); outline: 2px solid var(--accent); outline-offset: 2px; }
.remind-form input.is-error { border-color: var(--err); background: #FDF7F7; }
.field-error { grid-column: 1 / -1; color: var(--err); font-size: 13px; line-height: 1.5; margin: 0; }
.form-ok {
  grid-column: 1 / -1;
  background: var(--soft);
  color: var(--accent);
  border-radius: var(--r-btn);
  padding: 10px 12px;
  font-size: 14px;
}
.site-footer {
  border-top: 1px solid var(--ink);
  background: var(--band);
  padding: 8px 0 32px;
}
.foot-grid {
  display: grid;
  grid-template-columns: 1.4fr .8fr .95fr .75fr;
  gap: 28px;
  padding-top: 28px;
}
.foot-brand strong { color: var(--ink); font-size: 16px; }
.foot-brand p, .foot-col p, .foot-col a { color: var(--sub); font-size: 14px; }
.foot-col { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.foot-col b { color: var(--ink); font-size: 14px; font-weight: 680; }
.foot-col a { border-bottom: 1px solid transparent; }
.foot-col a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.copy-line { color: var(--muted); font-size: 12px; margin-top: 22px; }
@media (max-width: 1199px) {
  .container { width: 92%; }
}
@media (max-width: 1024px) {
  .remind-bar { grid-template-columns: 1fr; gap: 18px; }
  .series-split { grid-template-columns: 1fr .82fr; }
  .foot-grid { grid-template-columns: 1.2fr 1fr; }
}
@media (max-width: 768px) {
  .page-section { padding: 56px 0; }
  h1 { font-size: 30px; }
  h2 { font-size: 24px; }
  .nav-card { flex-direction: column; align-items: stretch; gap: 12px; }
  .brand { min-width: 0; }
  .nav-pills { overflow-x: auto; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
  .nav-cta { width: 100%; }
  .kr-mast-line { flex-direction: column; align-items: flex-start; }
  .kr-mast-issue { border-left: 0; padding-left: 0; }
  .kr-time-item { grid-template-columns: 16px minmax(0, 1fr); }
  .kr-date, .kr-status { grid-column: 2; }
  .series-split, .proof-head, .proof-row, .rel-item, .guard-bar { grid-template-columns: 1fr; display: grid; }
  .guide-row { grid-template-columns: 40px 1fr; }
  .dir-meta { grid-column: 2; }
  .guard-item + .guard-item { border-left: 0; border-top: 1px solid var(--line); }
  .rel-date { justify-self: start; }
  .series-card { min-height: 0; }
}
@media (max-width: 520px) {
  .container { width: calc(100% - 28px); }
  body { font-size: 16px; }
  .letter-card, .remind-bar, .proof-card { padding-left: 16px; padding-right: 16px; }
  .remind-form { grid-template-columns: 1fr; }
  .remind-form .btn, .btn { width: 100%; }
  .kr-mast-issue { display: block; }
  .decor-vline, .kr-timeline::before { display: none; }
  .foot-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .kr-timeline::before { display: none; }
  .guide-row { grid-template-columns: 1fr; gap: 4px; }
}