/* roulang page: index */
:root {
    --night: #080B0F;
    --wall: #0A0D10;
    --panel: #10151C;
    --card: #161D26;
    --line: #29313C;
    --ink: #E9EDF0;
    --sub: #9AA7AF;
    --faded: #6F7C85;
    --brand: #BFFF2E;
    --neon: #FF4DA6;
    --warn: #FFAE3D;
    --font-body: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
    --font-mono: "SF Mono", "Consolas", "Menlo", monospace;
    --radius-lg-card: 20px;
    --radius-card: 14px;
    --radius-btn: 12px;
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    background: var(--night);
    color: var(--ink);
    font-family: var(--font-body);
    line-height: 1.7;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
  }
  img { display: block; max-width: 100%; }
  button { font: inherit; cursor: pointer; }
  a { text-decoration: none; color: inherit; }
  .font-display { font-weight: 900; letter-spacing: -0.01em; }
  .mono-num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
  .bg-grid::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(191,255,46,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(191,255,46,.03) 1px, transparent 1px);
    background-size: 42px 42px;
    pointer-events: none;
  }
  .bg-dots::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(233,237,240,.07) 1px, transparent 1px);
    background-size: 22px 22px;
    pointer-events: none;
  }
  .card-hover {
    transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
  }
  .card-hover:hover {
    transform: translateY(-4px);
    border-color: rgba(191,255,46,.8);
    box-shadow: 0 0 0 1px rgba(191,255,46,.12), 0 18px 42px rgba(0, 0, 0, .3), 0 0 34px rgba(191,255,46,.12);
  }
  .cta-btn {
    box-shadow: 0 8px 26px rgba(191,255,46,.16);
    transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
  }
  .cta-btn:hover {
    transform: translateY(-2px);
    background: #d2ff60;
    box-shadow: 0 14px 36px rgba(191,255,46,.25);
  }
  .cta-btn:active { transform: translateY(1px); }
  .ghost-btn { transition: border-color .2s ease, color .2s ease, background .2s ease; }
  .ghost-btn:hover { border-color: var(--brand); color: #fff; }
  a:focus-visible,
  button:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
    border-radius: 6px;
  }
  .desktop-nav-link {
    position: relative;
    color: var(--sub);
    font-size: 15px;
    transition: color .2s ease, background .2s ease;
  }
  .desktop-nav-link:hover { color: #fff; }
  .desktop-nav-link.active {
    color: var(--brand);
    background: rgba(191,255,46,.1);
  }
  .desktop-nav-link.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 18px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: var(--brand);
  }
  .tag-pill {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 999px;
    border: 1px solid rgba(191,255,46,.4);
    color: var(--brand);
    background: rgba(191,255,46,.06);
    font-size: 12px;
    line-height: 1.4;
    white-space: nowrap;
  }
  .muted-tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 999px;
    border: 1px solid #3E4854;
    color: var(--sub);
    background: rgba(233,237,240,.04);
    font-size: 12px;
    line-height: 1.4;
  }
  .section-line {
    height: 1px;
    background: linear-gradient(90deg, rgba(41,49,60,0), #29313C 8%, #29313C 92%, rgba(41,49,60,0));
    border: none;
  }
  .scrollbar-hide::-webkit-scrollbar { display: none; }
  .scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }
  .review-rail {
    scroll-snap-type: x mandatory;
  }
  .review-rail > * {
    scroll-snap-align: start;
  }
  .footer-link { color: var(--sub); transition: color .2s ease; }
  .footer-link:hover { color: var(--brand); }
  .feature-number {
    font-family: var(--font-mono);
    line-height: 1;
    color: var(--brand);
  }
  .vertical-text {
    writing-mode: vertical-rl;
    letter-spacing: .18em;
  }
  .faq-item[data-open="true"] .faq-answer { display: block; }
  .faq-item[data-open="true"] .faq-sign { transform: rotate(45deg); }
  .faq-answer { display: none; }
  .faq-sign { transition: transform .25s ease; }
  .img-frame {
    position: relative;
    border-radius: var(--radius-lg-card);
    overflow: hidden;
    border: 1px solid #2b3541;
  }
  .img-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .7s ease;
  }
  .img-frame:hover img { transform: scale(1.04); }
  .glass-hairline {
    background: rgba(22,29,38,.82);
    border: 1px solid #29313C;
  }

/* roulang page: category1 */
:root {
    --bg-page: #080B0F;
    --bg-panel: #10151C;
    --bg-card: #161D26;
    --border-line: #29313C;
    --text-body: #E9EDF0;
    --text-sub: #9AA7AF;
    --text-faded: #6F7C85;
    --brand: #BFFF2E;
    --accent: #FF4DA6;
    --warn: #FFAE3D;
    --radius-card: 20px;
    --radius-field: 14px;
    --radius-btn: 12px;
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background: var(--bg-page);
    color: var(--text-body);
    font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
  }

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

  img {
    max-width: 100%;
    display: block;
  }

  button {
    font-family: inherit;
    cursor: pointer;
    border: 0;
    background: transparent;
  }

  :focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 3px;
  }

  ::selection {
    background: rgba(191, 255, 46, .22);
    color: #fff;
  }

  .bg-grid {
    background-image:
      linear-gradient(rgba(191, 255, 46, .04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(191, 255, 46, .04) 1px, transparent 1px);
    background-size: 34px 34px;
  }

  .bg-dots {
    background-image: radial-gradient(rgba(191, 255, 46, .12) 1px, transparent 1px);
    background-size: 22px 22px;
  }

  .desktop-nav-link {
    position: relative;
    color: var(--text-sub);
    transition: background .25s, color .25s, transform .25s;
  }

  .desktop-nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, .05);
  }

  .desktop-nav-link.active {
    background: rgba(191, 255, 46, .1);
    color: var(--brand);
    font-weight: 700;
  }

  .desktop-nav-link.active::before {
    content: "";
    position: absolute;
    left: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 22px;
    border-radius: 8px;
    background: var(--brand);
  }

  @media (min-width: 1024px) and (max-width: 1279px) {
    .desktop-nav-link {
      justify-content: center;
      padding-left: 0;
      padding-right: 0;
    }

    .desktop-nav-link span.nav-label {
      display: none;
    }

    .desktop-nav-link.active::before {
      left: -19px;
    }
  }

  .fan-item,
  .fan-item .fan-icon {
    transition: border-color .3s, transform .3s, color .3s, background .3s;
  }

  .faq-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
  }

  .faq-item.open {
    border-color: rgba(191, 255, 46, .45);
  }

  .faq-item.open .faq-panel {
    max-height: 340px;
  }

  .faq-item.open .faq-icon {
    transform: rotate(45deg);
    color: var(--brand);
  }

  .scrollbar-thin::-webkit-scrollbar {
    width: 5px;
  }

  .scrollbar-thin::-webkit-scrollbar-thumb {
    background: var(--border-line);
    border-radius: 999px;
  }

  @media (max-width: 768px) {
    .mobile-scroll-x {
      scrollbar-width: thin;
      -webkit-overflow-scrolling: touch;
    }
  }

/* roulang page: article */
:root {
  --bg: #080B0F;
  --panel: #10151C;
  --card: #161D26;
  --line: #29313C;
  --main: #E9EDF0;
  --sub: #9AA7AF;
  --faded: #6F7C85;
  --brand: #BFFF2E;
  --brand-ink: #0A0D11;
  --pink: #FF4DA6;
  --orange: #FFAE3D;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 18px 44px rgba(0, 0, 0, 0.32);
  --shadow-hover: 0 22px 48px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(191, 255, 46, 0.1), 0 0 34px rgba(191, 255, 46, 0.14);
}

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

html {
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
}

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "PingFang", sans-serif;
  background: var(--bg);
  color: var(--main);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

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

a,
button,
input,
select,
textarea {
  font-family: inherit;
}

button {
  background: none;
  border: 0;
  cursor: pointer;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: 8px;
}

::selection {
  background: rgba(191, 255, 46, 0.25);
  color: #fff;
}

.dot-grid {
  background-image: radial-gradient(rgba(191, 255, 46, 0.07) 1px, transparent 1px);
  background-size: 22px 22px;
}

.grid-line-bg {
  background-image: linear-gradient(rgba(191, 255, 46, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(191, 255, 46, 0.04) 1px, transparent 1px);
  background-size: 52px 52px;
}

.desktop-nav-link,
.mobile-nav-link {
  transition: color 0.25s ease, background 0.25s ease, transform 0.25s ease;
  color: var(--sub);
}

.desktop-nav-link:hover,
.mobile-nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
}

.desktop-nav-link.active,
.mobile-nav-link.active {
  color: var(--brand);
  background: rgba(191, 255, 46, 0.1);
  font-weight: 700;
}

.desktop-nav-link.active svg,
.mobile-nav-link.active svg {
  color: var(--brand);
}

.brand-mark {
  background: var(--brand);
  color: var(--brand-ink);
}

.btn-primary,
.btn-secondary {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 800;
  padding: 0 22px;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}

.btn-primary {
  background: var(--brand);
  color: var(--brand-ink);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(191, 255, 46, 0.22);
  filter: brightness(1.05);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  color: #dfe7e8;
  border: 1px solid var(--line);
}

.btn-secondary:hover {
  color: #fff;
  border-color: var(--brand);
  transform: translateY(-2px);
}

.chip {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  padding: 5px 12px;
  font-size: 13px;
  line-height: 1.4;
  border: 1px solid var(--line);
  color: var(--sub);
  background: rgba(255, 255, 255, 0.03);
  white-space: nowrap;
}

.chip-brand {
  color: #c8ff6b;
  border-color: rgba(191, 255, 46, 0.36);
  background: rgba(191, 255, 46, 0.08);
}

.article-cover {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-card);
}

.article-cover img {
  width: 100%;
  height: 100%;
  max-height: 500px;
  object-fit: cover;
  aspect-ratio: 16 / 8;
}

@media (max-width: 640px) {
  .article-cover img {
    aspect-ratio: 4 / 3;
  }
}

.article-body {
  font-size: 17px;
  line-height: 2;
  color: #d2dce1;
  word-break: break-word;
}

.article-body > *:first-child {
  margin-top: 0;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  color: #ffffff;
  line-height: 1.4;
  scroll-margin-top: 110px;
}

.article-body h2 {
  font-size: 27px;
  font-weight: 800;
  margin-top: 2.2em;
  margin-bottom: 0.75em;
  padding-left: 14px;
  border-left: 4px solid var(--brand);
}

.article-body h3 {
  font-size: 22px;
  font-weight: 800;
  margin-top: 2em;
  margin-bottom: 0.7em;
}

.article-body h4 {
  font-size: 18px;
  font-weight: 800;
  margin-top: 1.8em;
  margin-bottom: 0.6em;
}

.article-body p {
  margin: 1.3em 0;
  color: #cfd9dd;
}

.article-body a {
  color: var(--brand);
  border-bottom: 1px solid rgba(191, 255, 46, 0.5);
  padding-bottom: 1px;
}

.article-body a:hover {
  border-bottom-width: 2px;
}

.article-body ul,
.article-body ol {
  margin: 1.4em 0;
  padding-left: 1.7em;
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin: 0.4em 0;
  padding-left: 4px;
}

.article-body blockquote {
  margin: 1.8em 0;
  padding: 18px 22px;
  background: rgba(191, 255, 46, 0.05);
  border-left: 4px solid var(--brand);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: #e9eef0;
  font-size: 17px;
}

.article-body blockquote p {
  margin: 0;
  color: #dce3e6;
}

.article-body img {
  margin: 2em auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  max-width: 100%;
}

.article-body pre {
  margin: 1.8em 0;
  padding: 18px 20px;
  background: #0a0e13;
  border: 1px solid #2e3842;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-family: "SF Mono", "Consolas", "Menlo", monospace;
  font-size: 14px;
  line-height: 1.7;
  color: #c9d5dc;
}

.article-body code {
  font-family: "SF Mono", "Consolas", "Menlo", monospace;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 0.92em;
}

.article-body pre code {
  background: transparent;
  padding: 0;
  border: 0;
}

.article-body hr {
  margin: 2.6em auto;
  border: 0;
  border-top: 1px solid var(--line);
  max-width: 180px;
}

.article-body table {
  width: 100%;
  margin: 1.8em 0;
  border-collapse: collapse;
  font-size: 15px;
  overflow: hidden;
  border-radius: 14px;
}

@media (max-width: 720px) {
  .article-body table {
    display: block;
    overflow-x: auto;
  }
}

.article-body th {
  background: #1c242e;
  color: #fff;
  text-align: left;
  padding: 12px 14px;
  border: 1px solid var(--line);
  font-weight: 700;
}

.article-body td {
  padding: 11px 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
}

.footer-link {
  color: var(--faded);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-link:hover {
  color: var(--brand);
}

.footer-bottom {
  border-top: 1px solid var(--line);
}

.empty-card {
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.02);
}

.related-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.related-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35), 0 0 28px rgba(191, 255, 46, 0.14);
}

.related-card img {
  transition: transform 0.4s ease;
}

.related-card:hover img {
  transform: scale(1.04);
}

.tag-link {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  padding: 7px 16px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--sub);
  font-size: 13px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.tag-link:hover {
  color: #fff;
  border-color: rgba(191, 255, 46, 0.5);
  background: rgba(191, 255, 46, 0.08);
}

.info-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px 22px;
  color: var(--sub);
  font-size: 14px;
}

.info-list span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.section-title {
  font-size: 14px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brand);
  font-weight: 700;
}

.article-read {
  font-family: "SF Mono", "Consolas", "Menlo", monospace;
  color: var(--orange);
}

@media (min-width: 1024px) and (max-width: 1279px) {
  .desktop-sidebar .nav-text {
    display: none;
  }

  .desktop-sidebar .desktop-nav-link {
    justify-content: center;
    padding-left: 0;
    padding-right: 0;
  }

  .desktop-sidebar .brand-text {
    display: none;
  }

  .desktop-sidebar .brand-wrap {
    justify-content: center;
  }

  .desktop-sidebar .sidebar-bottom-copy {
    display: none;
  }
}

@media (max-width: 639px) {
  .info-list {
    gap: 10px 18px;
  }

  .article-body {
    font-size: 16px;
    line-height: 1.9;
  }

  .article-body h2 {
    font-size: 22px;
  }

  .article-body h3 {
    font-size: 19px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* roulang page: category2 */
:root {
    --bg-deep: #080B0F;
    --bg-block: #10151C;
    --card-bg: #161D26;
    --line: #29313C;
    --text-body: #E9EDF0;
    --text-sub: #9AA7AF;
    --text-faded: #6F7C85;
    --brand: #BFFF2E;
    --magenta: #FF4DA6;
    --orange: #FFAE3D;
    --nav-bg: #0A0D10;
    --dark-on-brand: #0A0D11;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 12px;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    background: var(--bg-deep);
    color: var(--text-body);
    font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }

  ::selection {
    background: var(--brand);
    color: var(--dark-on-brand);
  }

  a:focus-visible,
  button:focus-visible,
  [tabindex]:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
  }

  .background-grid {
    background-image: linear-gradient(rgba(191, 255, 46, 0.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(191, 255, 46, 0.05) 1px, transparent 1px);
    background-size: 36px 36px;
  }

  .background-dots {
    background-image: radial-gradient(rgba(233, 237, 240, 0.12) 1px, transparent 1px);
    background-size: 22px 22px;
  }

  .desktop-nav-link {
    position: relative;
    border: 1px solid transparent;
    color: var(--text-sub);
    font-size: 15px;
    font-weight: 500;
    transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease;
  }

  .desktop-nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.04);
  }

  .desktop-nav-link.active {
    background: rgba(191, 255, 46, 0.12);
    border-color: rgba(191, 255, 46, 0.24);
    color: var(--brand);
    font-weight: 700;
  }

  .footer-link {
    transition: color .2s ease;
  }

  .footer-link:hover {
    color: var(--brand);
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    min-height: 44px;
    padding: 0 24px;
    border-radius: var(--radius-sm);
    background: var(--brand);
    color: var(--dark-on-brand);
    font-weight: 700;
    border: 1px solid transparent;
    transition: transform .25s ease, box-shadow .25s ease, background .2s ease;
  }

  .btn-primary:hover {
    background: #d2ff5b;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(191, 255, 46, 0.18);
  }

  .btn-primary:active {
    transform: translateY(0);
  }

  .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    min-height: 44px;
    padding: 0 24px;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-body);
    border: 1px solid #3E4854;
    font-weight: 600;
    transition: border-color .2s ease, color .2s ease, transform .25s ease, background .2s ease;
  }

  .btn-secondary:hover {
    border-color: var(--brand);
    color: #ffffff;
    transform: translateY(-2px);
    background: rgba(191, 255, 46, 0.04);
  }

  .btn-secondary:active {
    transform: translateY(0);
  }

  .card-bg {
    background: var(--card-bg);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
  }

  .card-hover {
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  }

  .card-hover:hover {
    transform: translateY(-4px);
    border-color: rgba(191, 255, 46, 0.85);
    box-shadow: 0 10px 36px rgba(191, 255, 46, 0.14);
  }

  .faq-item {
    background: var(--card-bg);
    border: 1px solid #2a323d;
    border-radius: 16px;
    transition: border-color .25s ease, background .25s ease;
  }

  .faq-item.open {
    border-color: rgba(191, 255, 46, 0.25);
    background: #19222B;
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
  }

  .faq-icon {
    font-size: 24px;
    font-weight: 300;
    color: var(--text-faded);
    transition: transform .3s ease, color .3s ease;
  }

  .faq-item.open .faq-icon {
    transform: rotate(45deg);
    color: var(--brand);
  }

  .faq-q {
    cursor: pointer;
    text-align: left;
  }

  @media (min-width: 1024px) and (max-width: 1279px) {
    .desktop-nav-link {
      justify-content: center;
    }
    .desktop-nav-link:hover::after {
      content: attr(data-label);
      position: absolute;
      left: 100%;
      top: 50%;
      transform: translateY(-50%);
      margin-left: 10px;
      white-space: nowrap;
      background: #1B232D;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: #fff;
      padding: 8px 12px;
      font-size: 13px;
      font-weight: 500;
      z-index: 60;
      box-shadow: 0 8px 22px rgba(0, 0, 0, .3);
    }
  }

/* roulang page: category3 */
:root{--page:#080B0F;--panel:#10151C;--card:#161D26;--line:#29313C;--text:#E9EDF0;--sub:#9AA7AF;--faded:#6F7C85;--brand:#BFFF2E;--ink:#0A0D11;--pink:#FF4DA6;--orange:#FFAE3D;--radius-card:20px;--radius-sm:14px;--radius-btn:12px;}
  *{box-sizing:border-box}
  html{scroll-behavior:smooth;scroll-padding-top:96px}
  body{font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;background:var(--page);color:var(--text);margin:0;line-height:1.7;-webkit-font-smoothing:antialiased}
  img{max-width:100%;display:block}
  a{text-decoration:none;color:inherit}
  button{font-family:inherit;border:0;background:transparent;cursor:pointer;color:inherit}
  table{border-collapse:collapse}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
  .bg-grid{background-image:linear-gradient(to right,rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.035) 1px,transparent 1px);background-size:34px 34px}
  .bg-dots{background-image:radial-gradient(rgba(191,255,46,.14) 1px,transparent 1px);background-size:18px 18px}

  .btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;border-radius:var(--radius-btn);padding:0 20px;font-size:14px;font-weight:700;transition:all .25s ease;white-space:nowrap}
  .btn-primary{background:var(--brand);color:var(--ink)}
  .btn-primary:hover{background:#d5ff70;transform:translateY(-2px);box-shadow:0 8px 20px rgba(191,255,46,.18)}
  .btn-primary:active{transform:translateY(0)}
  .btn-secondary{border:1px solid #3E4854;color:var(--sub);background:transparent}
  .btn-secondary:hover{border-color:var(--brand);color:#fff;transform:translateY(-2px)}
  .btn-secondary:active{transform:translateY(0)}

  .desktop-nav-link{position:relative;color:var(--sub);font-weight:500;display:flex;width:100%;align-items:center;gap:12px;padding:12px 12px;border-radius:12px;transition:background .2s,color .2s}
  .desktop-nav-link svg{width:20px;height:20px;color:var(--sub);transition:color .2s;flex-shrink:0}
  .desktop-nav-link:hover{color:#fff;background:rgba(255,255,255,.03)}
  .desktop-nav-link:hover svg{color:#fff}
  .desktop-nav-link.active{background:rgba(191,255,46,.1);color:var(--brand)}
  .desktop-nav-link.active svg{color:var(--brand)}
  @media (min-width:1024px) and (max-width:1279.98px){
    .desktop-nav-link{justify-content:center;padding:14px 10px}
  }
  @media (min-width:1280px){
    .desktop-nav-link{justify-content:flex-start;padding:13px 16px}
  }

  .section{padding-top:84px;padding-bottom:84px}
  .section-kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--brand);text-transform:uppercase}
  .section-kicker::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:999px}
  .section-title{font-size:28px;line-height:1.25;font-weight:800;margin:12px 0 0;color:var(--text);letter-spacing:-.01em}
  @media (min-width:768px){.section-title{font-size:34px}}

  .card-surface{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;position:relative;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
  .card-surface:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 18px 38px rgba(0,0,0,.35),0 0 0 1px rgba(191,255,46,.18)}

  .badge-live,.badge-wait,.badge-hurry{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:700;line-height:1}
  .badge-live{background:rgba(191,255,46,.1);color:var(--brand)}
  .badge-wait{background:rgba(154,167,175,.1);color:var(--sub)}
  .badge-hurry{background:rgba(255,77,166,.12);color:var(--pink)}
  .badge-live i,.badge-wait i,.badge-hurry i{width:5px;height:5px;border-radius:999px;background:currentColor}

  .data-table{width:100%;font-size:14px;min-width:540px}
  .data-table th{padding:14px 16px;text-align:left;font-weight:700;color:var(--brand);background:var(--ink);border-bottom:1px solid var(--line);white-space:nowrap}
  .data-table td{padding:14px 16px;color:var(--sub);border-bottom:1px solid #202833;vertical-align:top}
  .data-table tbody tr:last-child td{border-bottom:0}
  .data-table tbody tr:hover td{background:rgba(191,255,46,.03)}
  .tab-wrap{background:var(--panel);border:1px solid var(--line);border-radius:20px;overflow-x:auto;overflow-y:hidden}

  .faq-item{background:var(--panel);border:1px solid var(--line);border-radius:16px;transition:border-color .2s}
  .faq-item.open{border-color:rgba(191,255,46,.5)}
  .faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:18px 20px;text-align:left;font-size:16px;font-weight:700;color:var(--text)}
  .faq-q span:last-child{flex-shrink:0;display:grid;place-items:center;width:28px;height:28px;border-radius:999px;background:rgba(191,255,46,.1);color:var(--brand);font-size:20px;font-weight:400;transition:transform .3s}
  .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
  .faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s ease}
  .faq-a>div{overflow:hidden}
  .faq-a p{padding:0 20px 20px;margin:0;color:var(--sub);line-height:1.85;font-size:15px;border-left:3px solid var(--brand);margin-left:20px;padding-left:14px}
  .faq-item.open .faq-a{grid-template-rows:1fr}

  .event-rail{overflow-x:auto;scroll-snap-type:x proximity;display:flex;gap:18px;padding:2px 2px 18px;scrollbar-width:thin;scrollbar-color:#333d49 transparent}
  .event-rail::-webkit-scrollbar{height:8px}
  .event-rail::-webkit-scrollbar-thumb{background:#333d49;border-radius:999px}
  .event-rail::-webkit-scrollbar-track{background:transparent}
  .event-card{min-width:270px;max-width:270px;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:18px;scroll-snap-align:start;transition:border-color .2s,transform .25s}
  .event-card:hover{border-color:var(--brand);transform:translateY(-3px)}

  .step-card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:24px 20px}
  .step-card .step-no{font-family:"SF Mono",Consolas,Menlo,monospace;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.08em}
  .step-card::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:0 999px 999px 0;background:var(--brand)}

  .qr-block{width:168px;height:168px;border:1px dashed #5B6772;border-radius:16px;background:rgba(255,255,255,.04);display:grid;place-items:center;text-align:center;color:var(--faded);font-size:13px;line-height:1.6;padding:8px}

  .footer-link{color:var(--faded);transition:color .2s}
  .footer-link:hover{color:var(--brand)}

  @media (max-width:767.98px){
    .section{padding-top:52px;padding-bottom:52px}
    .event-card{min-width:230px;max-width:230px}
  }