/* roulang page: index */
:root {
  --blue: #2C6BED;
  --blue-press: #1F56C8;
  --ink: #1C2B3A;
  --muted: #5C6B7A;
  --paper: #F3F6FB;
  --white: #FFFFFF;
  --mist: #EEF3FA;
  --line: #E3EAF3;
  --clay: #C46B5A;
  --clay-soft: #FBF3F1;
  --radius: 16px;
  --radius-btn: 10px;
  --shadow: 0 10px 30px rgba(28, 60, 120, 0.08);
  --shadow-hover: 0 16px 36px rgba(28, 60, 120, 0.12);
  --max: 1120px;
  --header: 72px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul { padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }
body {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper);
  padding-top: var(--header);
}
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}
h1 { font-size: 40px; line-height: 1.25; font-weight: 700; }
h2 { font-size: 26px; line-height: 1.35; font-weight: 700; }
h3 { font-size: 18px; line-height: 1.45; font-weight: 700; }
.lead {
  margin-top: 12px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
  max-width: 760px;
}
.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header);
  background: var(--white);
  border-bottom: 1px solid var(--line);
  z-index: 40;
}
.header-inner {
  height: var(--header);
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  margin-right: auto;
}
.logo-main {
  font-size: 15px;
  line-height: 1.2;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}
.logo-sub {
  font-size: 12px;
  line-height: 1.3;
  color: var(--muted);
}
.nav-center {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  min-height: 44px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  color: var(--ink);
  font-size: 14px;
  border-radius: 8px;
}
.nav-link:hover { color: var(--blue); background: var(--mist); }
.nav-link:active { color: var(--blue-press); }
.nav-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}
.command-search {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 8px 0 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  min-width: 280px;
}
.command-search input {
  flex: 1;
  min-width: 0;
  height: 40px;
  border: 0;
  background: transparent;
  padding: 0;
}
.command-search input::placeholder { color: var(--muted); }
.kbd {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: var(--white);
  color: var(--muted);
  font-size: 12px;
  line-height: 1;
  padding: 4px 6px;
}
.shortcut {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
}
.shortcut:hover { color: var(--blue); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  transition: background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 6px 16px rgba(44, 107, 237, 0.18);
}
.btn-primary:hover {
  background: var(--blue-press);
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(44, 107, 237, 0.25);
}
.btn-primary:active { transform: translateY(0); background: var(--blue-press); }
.btn-secondary {
  background: var(--white);
  color: var(--ink);
  border-color: var(--line);
}
.btn-secondary:hover { border-color: var(--blue); color: var(--blue); }
.btn-secondary:active { color: var(--blue-press); border-color: var(--blue-press); }
.btn:disabled, .btn.is-disabled {
  background: var(--mist);
  color: var(--muted);
  border-color: var(--line);
  box-shadow: none;
  transform: none;
  cursor: not-allowed;
}
.icon-btn {
  display: none;
  min-width: 44px;
  min-height: 44px;
  padding: 0 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
}
.icon-btn:hover { border-color: var(--blue); color: var(--blue); }
.icon-btn[aria-expanded="true"] { background: var(--mist); color: var(--blue); }
.search-pop {
  position: absolute;
  top: var(--header);
  left: 24px;
  right: 24px;
  z-index: 35;
}
.empty-state {
  margin-top: 8px;
  background: var(--paper);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  color: var(--muted);
  box-shadow: var(--shadow);
}
.empty-state strong { display: block; color: var(--ink); margin-bottom: 4px; }
section { padding: 72px 0; scroll-margin-top: 88px; }
.s-white { background: var(--white); }
.s-mist { background: var(--mist); }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 28px;
}
.text-link {
  flex: 0 0 auto;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--blue);
  font-weight: 600;
  font-size: 14px;
}
.text-link:hover { color: var(--blue-press); }
.hero-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 36px;
  align-items: start;
}
.subhead {
  margin-top: 14px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}
.hero .lead { margin-top: 16px; }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.spec-bar {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  background: var(--white);
}
.spec-bar div {
  padding: 18px 16px 0 0;
}
.spec-bar dt {
  font-size: 13px;
  color: var(--muted);
}
.spec-bar dd {
  margin-top: 4px;
  font-weight: 700;
}
.heat-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.heat-panel h2 {
  font-size: 16px;
  margin-bottom: 12px;
}
.heat-row {
  padding: 12px 0;
  border-top: 1px solid var(--line);
}
.heat-row:first-of-type { border-top: 0; }
.heat-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}
.heat-name { font-weight: 700; }
.heat-meta {
  margin-top: 4px;
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}
.bar {
  margin-top: 8px;
  height: 6px;
  background: var(--mist);
  border-radius: 999px;
  overflow: hidden;
}
.bar span {
  display: block;
  height: 100%;
  width: var(--w);
  background: var(--blue);
}
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--mist);
  color: var(--blue);
}
.tag-heat {
  background: var(--clay-soft);
  color: var(--clay);
}
.feature-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}
.feature-card, .topic-card, .scene-card, .price-card, .quote, .metric, .case-item, .day, .player, .side-note {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.feature-card {
  padding: 22px;
  transition: box-shadow .2s ease;
}
.feature-card:hover { box-shadow: var(--shadow-hover); }
.feature-wide { grid-column: 1 / 2; grid-row: 1 / 3; }
.feature-card p { margin-top: 10px; color: var(--muted); }
.topic-layout {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 16px;
}
.topic-card {
  display: block;
  padding: 16px;
  color: inherit;
  transition: box-shadow .2s ease;
}
.topic-card:hover { box-shadow: var(--shadow-hover); }
.cover {
  background: #E7EEF8;
  border-radius: 12px;
  display: flex;
  align-items: flex-end;
  padding: 12px;
  color: var(--muted);
  font-size: 13px;
}
.topic-main .cover { height: 220px; }
.topic-side { display: flex; flex-direction: column; gap: 16px; }
.topic-side .cover { height: 72px; }
.topic-card h3 { margin-top: 12px; }
.topic-card p { margin-top: 6px; color: var(--muted); font-size: 14px; }
.card-action {
  display: inline-flex;
  margin-top: 12px;
  color: var(--blue);
  font-weight: 600;
  font-size: 14px;
  min-height: 44px;
  align-items: center;
}
.scene-track {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1.1fr;
  gap: 12px;
}
.scene-card { padding: 20px; background: var(--white); }
.scene-index {
  font-size: 13px;
  color: var(--blue);
  font-weight: 700;
}
.scene-card h3 { margin: 8px 0; }
.scene-card p { color: var(--muted); font-size: 14px; }
.player-layout {
  display: grid;
  grid-template-columns: 1.45fr 0.8fr;
  gap: 24px;
  align-items: stretch;
}
.player { padding: 16px; }
.player-screen {
  height: 280px;
  border-radius: 12px;
  background: #E7EEF8;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  text-align: center;
  padding: 16px;
}
.player-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 14px;
}
.progress {
  flex: 1 1 180px;
  height: 8px;
  background: var(--mist);
  border-radius: 999px;
  overflow: hidden;
}
.progress span { display: block; width: 42%; height: 100%; background: var(--blue); }
.time { font-size: 13px; color: var(--muted); }
.pill {
  min-height: 36px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
}
.side-note { padding: 22px; }
.side-note li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.side-note li:last-child { border-bottom: 0; }
.side-note span { color: var(--muted); }
.note-warn {
  margin-top: 12px;
  font-size: 13px;
  color: var(--clay);
  font-weight: 600;
}
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
}
th, td {
  text-align: left;
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th {
  font-size: 14px;
  color: var(--blue);
  border-bottom: 2px solid var(--blue);
  font-weight: 700;
}
td { background: transparent; }
.case-list { display: flex; flex-direction: column; gap: 16px; }
.case-item {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 8px 18px;
  padding: 22px;
  transition: box-shadow .2s ease;
}
.case-item:hover { box-shadow: var(--shadow-hover); }
.case-no {
  font-size: 22px;
  font-weight: 700;
  color: var(--blue);
}
.case-item p { grid-column: 2; color: var(--muted); }
.price-layout {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 16px;
  align-items: stretch;
}
.price-side { display: flex; flex-direction: column; gap: 16px; }
.price-card { padding: 22px; transition: box-shadow .2s ease; }
.price-card:hover { box-shadow: var(--shadow-hover); }
.price-card.is-main { box-shadow: 0 16px 36px rgba(28, 60, 120, 0.14); }
.price {
  margin: 10px 0 14px;
  font-size: 32px;
  line-height: 1.2;
  font-weight: 700;
  color: var(--blue);
}
.price small { font-size: 14px; color: var(--muted); font-weight: 600; margin-left: 6px; }
.price-card li {
  position: relative;
  padding: 8px 0 8px 16px;
  color: var(--ink);
}
.price-card li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
  position: absolute;
  left: 0;
  top: 16px;
}
.price-card .btn { margin-top: 12px; }
.quote-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 16px;
  align-items: start;
}
.quote-col { display: flex; flex-direction: column; gap: 16px; }
.quote { padding: 20px 22px; }
.quote p { font-size: 16px; }
.quote footer {
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
}
.metric-row {
  display: grid;
  grid-template-columns: 1.3fr 1fr 0.85fr;
  gap: 16px;
}
.metric { padding: 22px; background: var(--white); }
.metric b {
  display: block;
  margin-top: 8px;
  font-size: 36px;
  line-height: 1.1;
  color: var(--blue);
}
.metric span { font-size: 13px; color: var(--muted); }
.metric-note { margin-top: 18px; color: var(--muted); }
.news-list { display: flex; flex-direction: column; }
.news-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 16px;
  align-items: center;
  min-height: 64px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.news-row:hover .news-title { color: var(--blue); }
.news-title { font-weight: 650; font-weight: 700; }
.news-date { color: var(--muted); font-size: 13px; }
.timeline {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
}
.day {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  min-height: 148px;
  transition: box-shadow .2s ease;
}
.day:hover { box-shadow: var(--shadow-hover); }
.day strong { font-size: 14px; }
.day p { color: var(--muted); font-size: 13px; }
.faq details {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.faq summary {
  min-height: 56px;
  padding: 14px 18px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--blue); }
.faq details[open] summary { color: var(--blue); }
.faq details p { padding: 0 18px 16px; color: var(--muted); }
.step-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.step {
  padding: 8px 8px 0 0;
  border-top: 2px solid var(--blue);
}
.step b {
  display: block;
  margin-top: 12px;
  color: var(--blue);
  font-size: 13px;
}
.step h3 { margin: 6px 0; }
.step p { color: var(--muted); }
.close-wrap { max-width: 720px; }
.close-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-top: 24px;
}
.form-panel { margin-top: 22px; }
.form-panel summary {
  min-height: 44px;
  color: var(--blue);
  font-weight: 700;
  cursor: pointer;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 12px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field span { font-size: 13px; color: var(--muted); }
.field input, .field select {
  min-height: 44px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--white);
  padding: 0 12px;
}
.field.is-error input, .field.is-error select { border-color: var(--clay); }
.form-error, .form-success {
  grid-column: 1 / -1;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 14px;
}
.form-error { background: var(--clay-soft); color: var(--clay); }
.form-success { background: var(--mist); color: var(--ink); border: 1px solid var(--line); }
.form-tip { margin-top: 10px; font-size: 13px; color: var(--muted); }
.footer {
  background: var(--white);
  border-top: 1px solid var(--line);
  padding: 48px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 24px;
}
.footer h2 { font-size: 16px; margin-bottom: 10px; }
.footer a, .footer p { color: var(--muted); font-size: 14px; }
.footer li { margin: 8px 0; }
.footer a:hover { color: var(--blue); }
.legal {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}
@media (max-width: 1024px) {
  .nav-center, .shortcut, .command-search { display: none; }
  .icon-btn { display: inline-flex; align-items: center; justify-content: center; }
  .nav-center {
    position: absolute;
    top: var(--header);
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    z-index: 30;
  }
  .header.nav-open .nav-center,
  .header.nav-open .shortcut { display: flex; }
  .header.nav-open .shortcut { padding: 0 16px 8px; }
  .header.search-open .command-search {
    display: flex;
    position: absolute;
    top: var(--header);
    left: 12px;
    right: 12px;
    width: auto;
    min-width: 0;
    z-index: 32;
    background: var(--white);
  }
  .feature-grid, .scene-track, .metric-row { grid-template-columns: 1fr 1fr; }
  .feature-wide { grid-column: 1 / -1; grid-row: auto; }
}
@media (max-width: 768px) {
  section { padding: 40px 0; }
  .hero-grid, .topic-layout, .player-layout, .price-layout, .quote-grid, .footer-grid, .step-row, .spec-bar, .form-grid, .case-item {
    grid-template-columns: 1fr;
  }
  .feature-grid, .scene-track, .metric-row { grid-template-columns: 1fr; }
  .timeline { display: flex; overflow-x: auto; padding-bottom: 6px; }
  .day { min-width: 150px; }
  .news-row { grid-template-columns: 1fr auto; }
  .news-date { grid-column: 1; }
  .section-head { flex-direction: column; }
  .case-item p { grid-column: 1; }
}
@media (max-width: 480px) {
  h1 { font-size: 30px; }
  .container, .header-inner { padding-left: 16px; padding-right: 16px; }
  .logo-main { font-size: 13px; }
  .logo-sub { display: none; }
  .header-inner { gap: 6px; }
  .hero-actions, .close-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn-primary,
  .close-panel .btn-primary,
  .price-card .btn { width: 100%; }
}

/* roulang page: category1 */
:root {
 --blue: #2C6BED;
 --blue-press: #1F56C8;
 --ink: #1C2B3A;
 --muted: #5C6B7A;
 --paper: #F3F6FB;
 --white: #FFFFFF;
 --mist: #EEF3FA;
 --line: #E3EAF3;
 --clay: #C46B5A;
 --clay-soft: #FBF3F1;
 --radius: 16px;
 --radius-btn: 10px;
 --shadow: 0 10px 30px rgba(28, 60, 120, 0.08);
 --shadow-hover: 0 16px 36px rgba(28, 60, 120, 0.12);
 --max: 1120px;
 --header: 72px;
}
/* roulang page: category */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }
[hidden] { display: none !important; }
body {
 font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
 font-size: 16px;
 line-height: 1.75;
 color: var(--ink);
 background: var(--paper);
 padding-top: var(--header);
}
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
h1 { font-size: 40px; line-height: 1.25; font-weight: 700; }
h2 { font-size: 26px; line-height: 1.35; font-weight: 700; }
h3 { font-size: 18px; line-height: 1.45; font-weight: 700; }
.lead { margin-top: 12px; color: var(--muted); font-size: 16px; line-height: 1.75; max-width: 760px; }
.eyebrow { display: inline-block; margin-bottom: 12px; color: var(--blue); font-size: 13px; font-weight: 600; }
.header {
 position: fixed; top: 0; left: 0; right: 0; height: var(--header);
 background: var(--white); border-bottom: 1px solid var(--line); z-index: 40;
}
.header-inner {
 height: var(--header); max-width: var(--max); margin: 0 auto; padding: 0 24px;
 display: flex; align-items: center; gap: 16px;
}
.logo { display: flex; flex-direction: column; justify-content: center; min-width: 0; margin-right: auto; }
.logo-main { font-size: 15px; line-height: 1.2; font-weight: 700; color: var(--ink); white-space: nowrap; }
.logo-sub { font-size: 12px; line-height: 1.3; color: var(--muted); }
.nav-center { display: flex; align-items: center; gap: 4px; }
.nav-link {
 min-height: 44px; padding: 0 10px; display: inline-flex; align-items: center;
 color: var(--ink); font-size: 14px; border-radius: 8px;
}
.nav-link:hover { color: var(--blue); background: var(--mist); }
.nav-link:active, .nav-link.active { color: var(--blue); background: var(--mist); }
.nav-tools { display: flex; align-items: center; gap: 10px; }
.command-search {
 display: flex; align-items: center; gap: 8px; height: 44px; padding: 0 8px 0 16px;
 background: var(--paper); border: 1px solid var(--line); border-radius: 999px; min-width: 280px;
}
.command-search input { flex: 1; min-width: 0; height: 40px; border: 0; background: transparent; padding: 0; outline: none; }
.command-search input::placeholder { color: var(--muted); }
.command-search:focus-within { border-color: var(--blue); box-shadow: 0 0 0 2px rgba(44, 107, 237, 0.2); }
.kbd {
 font-size: 12px; font-weight: 600; color: var(--muted); border: 1px solid var(--line);
 background: var(--white); border-radius: 6px; padding: 2px 6px; line-height: 1.4; white-space: nowrap;
}
.shortcut { min-height: 44px; display: inline-flex; align-items: center; font-size: 14px; font-weight: 600; color: var(--ink); padding: 0 4px; }
.shortcut:hover { color: var(--blue); }
.btn {
 display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 16px;
 border-radius: var(--radius-btn); border: 1px solid transparent; font-size: 14px; font-weight: 600;
 transition: background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 6px 16px rgba(44, 107, 237, 0.18); }
.btn-primary:hover { background: var(--blue-press); transform: translateY(-1px); box-shadow: 0 8px 18px rgba(44, 107, 237, 0.25); }
.btn-primary:active { transform: translateY(0); background: var(--blue-press); }
.btn-secondary { background: var(--white); color: var(--ink); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--blue); color: var(--blue); }
.btn:disabled, .btn.is-disabled { background: var(--mist); color: var(--muted); border-color: var(--line); box-shadow: none; transform: none; cursor: not-allowed; }
.icon-btn {
 display: none; min-width: 44px; min-height: 44px; padding: 0 10px; border-radius: 10px;
 border: 1px solid var(--line); background: var(--white); color: var(--ink); font-size: 13px; font-weight: 600;
}
.icon-btn:hover { border-color: var(--blue); color: var(--blue); }
.icon-btn[aria-expanded="true"] { background: var(--mist); color: var(--blue); }
.search-pop { position: absolute; top: var(--header); left: 24px; right: 24px; z-index: 35; }
.empty-state {
 max-width: var(--max); margin: 8px auto 0; background: var(--white); border: 1px solid var(--line);
 border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px 18px;
}
.empty-state p { color: var(--muted); margin-top: 4px; }
a:focus-visible, button:focus-visible, .chip:focus-visible {
 outline: 2px solid var(--blue); outline-offset: 2px;
}
section { scroll-margin-top: 88px; }
.cat-head { background: var(--white); padding: 48px 0 20px; }
.crumb { font-size: 13px; color: var(--muted); margin-bottom: 14px; display: flex; gap: 8px; flex-wrap: wrap; }
.crumb a:hover { color: var(--blue); }
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.chip {
 min-height: 44px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line);
 background: var(--white); color: var(--ink); font-size: 13px; font-weight: 600;
}
.chip:hover { border-color: var(--blue); color: var(--blue); }
.chip.is-on, .chip[aria-pressed="true"] { background: var(--mist); color: var(--blue); border-color: var(--blue); }
.filters { background: var(--white); padding: 0 0 28px; }
.cond {
 display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
 background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
 box-shadow: var(--shadow); padding: 14px 16px;
}
.cond-label { font-size: 13px; color: var(--muted); }
.cond strong { color: var(--ink); font-weight: 600; }
.sorts { display: flex; flex-wrap: wrap; gap: 8px; }
.list-stack {
 display: grid; gap: 16px; padding: 72px 24px; background: var(--mist);
}
.list-section { display: contents; }
.list-stack .section-head, .list-stack .post-card, .list-stack .mid-guide {
 width: 100%; max-width: var(--max); margin-inline: auto;
}
.list-section > .section-head { order: 0; }
.list-section > .post-card:nth-child(-n+5) { order: 1; }
.mid-guide { order: 2; }
.list-section > .post-card:nth-child(n+6) { order: 3; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; }
.section-head p { color: var(--muted); font-size: 14px; }
.post-card {
 display: flex; gap: 16px; padding: 16px; background: var(--white); border: 1px solid var(--line);
 border-radius: var(--radius); box-shadow: var(--shadow); transition: box-shadow .2s ease;
}
.post-card:hover { box-shadow: var(--shadow-hover); }
.cover {
 width: 148px; height: 104px; flex: 0 0 148px; border-radius: 12px; background: #E4ECF7;
 border: 1px solid var(--line); display: flex; align-items: flex-end; padding: 8px;
 color: var(--muted); font-size: 12px; font-weight: 600;
}
.post-body { min-width: 0; flex: 1; }
.post-body h3 { font-size: 18px; }
.meta { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; }
.tag {
 display: inline-flex; align-items: center; min-height: 24px; padding: 0 8px; border-radius: 999px;
 font-size: 12px; font-weight: 600; background: var(--mist); color: var(--blue);
}
.tag-heat { background: var(--clay-soft); color: var(--clay); }
.mid-guide {
 background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
 box-shadow: var(--shadow); padding: 22px 22px 18px;
}
.mid-guide p { margin-top: 8px; color: var(--muted); max-width: 760px; }
.band { padding: 72px 0; }
.band-white { background: var(--white); }
.band-mist { background: var(--mist); }
.note-list { display: flex; flex-direction: column; gap: 12px; }
.note-item {
 display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 64px;
 padding: 14px 18px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
 box-shadow: var(--shadow); transition: box-shadow .2s ease;
}
.note-item:hover { box-shadow: var(--shadow-hover); }
.note-item span { color: var(--muted); font-size: 13px; white-space: nowrap; }
.table-wrap { overflow-x: auto; margin-top: 8px; }
table { width: 100%; border-collapse: collapse; min-width: 560px; }
th, td { text-align: left; padding: 14px 12px; border-bottom: 1px solid var(--line); font-size: 15px; vertical-align: top; }
thead th { color: var(--ink); font-weight: 700; border-bottom: 2px solid var(--blue); font-size: 14px; }
tbody td { color: var(--ink); }
.quality-note { margin-top: 16px; color: var(--muted); max-width: 760px; }
.faq-item {
 background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
 box-shadow: var(--shadow); margin-top: 12px;
}
.faq-q {
 width: 100%; text-align: left; background: transparent; border: 0; min-height: 56px;
 padding: 14px 18px; font-weight: 700; display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq-q:hover { color: var(--blue); }
.faq-mark { color: var(--blue); font-size: 20px; line-height: 1; font-weight: 500; }
.faq-a { padding: 0 18px 16px; color: var(--muted); }
.list-end .end-row {
 display: flex; justify-content: space-between; align-items: center; gap: 18px;
 background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
 box-shadow: var(--shadow); padding: 22px;
}
.end-row p { color: var(--muted); margin-top: 6px; }
.text-link {
 flex: 0 0 auto; min-height: 44px; display: inline-flex; align-items: center; color: var(--blue);
 font-weight: 600; font-size: 14px; padding: 0 4px;
}
.text-link:hover { color: var(--blue-press); }
.footer { background: var(--white); border-top: 1px solid var(--line); padding: 48px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; }
.footer h2 { font-size: 14px; margin-bottom: 8px; }
.footer p { color: var(--muted); font-size: 14px; margin-top: 8px; }
.footer a { display: flex; min-height: 36px; align-items: center; color: var(--muted); font-size: 14px; }
.footer a:hover { color: var(--blue); }
.legal { margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.legal p + p { margin-top: 4px; }
.field-error { border-color: var(--clay) !important; background: var(--clay-soft); }
.is-disabled { pointer-events: none; opacity: 0.55; }
@media (max-width: 1024px) {
 .nav-center {
  display: none; position: absolute; top: var(--header); left: 0; right: 0; background: var(--white);
  flex-direction: column; align-items: stretch; border-bottom: 1px solid var(--line); padding: 8px 16px 16px; z-index: 38;
 }
 .nav-center.is-open { display: flex; }
 .nav-link { width: 100%; }
 .icon-btn { display: inline-flex; align-items: center; justify-content: center; }
 .command-search { display: none; min-width: 0; }
 .command-search.is-open {
  display: flex; position: absolute; top: var(--header); left: 0; right: 0; width: auto;
  border-radius: 0; z-index: 39; background: var(--white);
 }
 .shortcut { display: none; }
 .search-pop { left: 12px; right: 12px; }
}
@media (max-width: 768px) {
 .band, .list-stack { padding-top: 40px; padding-bottom: 40px; }
 .footer-grid { grid-template-columns: 1fr 1fr; }
 .cond { align-items: flex-start; }
 .note-item { align-items: flex-start; flex-direction: column; }
 .end-row { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 520px) {
 h1 { font-size: 30px; }
 .header-inner { padding: 0 12px; gap: 8px; }
 .logo-sub { display: none; }
 .container, .list-stack { padding-left: 16px; padding-right: 16px; }
 .post-card { flex-direction: column; }
 .cover { width: 100%; flex-basis: auto; height: 120px; }
 .footer-grid { grid-template-columns: 1fr; }
 .text-link, .list-end .text-link { width: 100%; justify-content: center; }
}