.qy-linux-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.qy-linux-hero__bg {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(18, 99, 255, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(18, 99, 255, 0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at 74% 48%, #000000, transparent 62%);
  pointer-events: none;
}

.qy-linux-hero__inner {
  position: relative;
  min-height: 560px;
  display: grid;
  grid-template-columns: 1fr 440px;
  align-items: center;
  gap: 54px;
  padding: 86px 0;
}

.qy-linux-hero__content h1 {
  margin: 24px 0 18px;
  font-size: clamp(38px, 4vw, 58px);
  line-height: 1.08;
  letter-spacing: -1.3px;
}

.qy-linux-hero__content p {
  max-width: 720px;
  margin: 0;
  color: var(--qy-text);
  font-size: 18px;
  line-height: 1.9;
}

.qy-linux-hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.qy-linux-terminal {
  overflow: hidden;
  border: 1px solid rgba(226, 232, 240, 0.95);
  border-radius: 30px;
  background: #07142f;
  box-shadow: var(--qy-shadow-md);
}

.qy-linux-terminal__head {
  height: 58px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 20px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.18);
  background: rgba(255, 255, 255, 0.06);
}

.qy-linux-terminal__head span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #64748b;
}

.qy-linux-terminal__head strong {
  margin-left: auto;
  color: #dbeafe;
  font-size: 13px;
}

.qy-linux-terminal__body {
  padding: 24px;
  font-family: Consolas, Monaco, "Courier New", monospace;
}

.qy-linux-terminal__body p {
  margin: 0 0 10px;
  color: #cbd5e1;
  font-size: 13px;
  line-height: 1.7;
}

.qy-linux-terminal__body b {
  color: #38bdf8;
}

.qy-linux-section {
  padding: 84px 0;
  background: #ffffff;
}

.qy-linux-section--soft {
  background: var(--qy-bg);
}

.qy-linux-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 22px;
  align-items: start;
}

.qy-linux-cate {
  display: grid;
  gap: 12px;
}

.qy-linux-cate button {
  min-height: 82px;
  display: grid;
  grid-template-columns: 48px 1fr;
  grid-template-areas:
    "icon title"
    "icon desc";
  column-gap: 14px;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--qy-line);
  border-radius: 22px;
  background: var(--qy-white);
  text-align: left;
  box-shadow: var(--qy-shadow-sm);
  transition: 0.18s ease;
}

.qy-linux-cate button:hover,
.qy-linux-cate button.is-active {
  border-color: #cfe0ff;
  background: linear-gradient(180deg, #ffffff, #f5f9ff);
  transform: translateY(-2px);
}

.qy-linux-cate span {
  grid-area: icon;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--qy-primary);
  border-radius: 16px;
  background: var(--qy-primary-light);
  font-size: 12px;
  font-weight: 900;
}

.qy-linux-cate strong {
  grid-area: title;
  color: var(--qy-title);
  font-size: 17px;
  line-height: 1.2;
}

.qy-linux-cate em {
  grid-area: desc;
  margin-top: 6px;
  color: var(--qy-muted);
  font-size: 13px;
  font-style: normal;
}

.qy-linux-panel {
  display: none;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.qy-linux-panel.is-active {
  display: grid;
}

.qy-linux-command-card {
  overflow: hidden;
  border: 1px solid var(--qy-line);
  border-radius: 24px;
  background: var(--qy-white);
  box-shadow: var(--qy-shadow-sm);
}

.qy-linux-command-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--qy-soft-line);
  background: linear-gradient(90deg, #ffffff, #f8fbff);
}

.qy-linux-command-card__head span {
  color: var(--qy-primary);
  font-size: 12px;
  font-weight: 900;
}

.qy-linux-command-card__head h3 {
  margin: 6px 0 0;
  color: var(--qy-title);
  font-size: 18px;
}

.qy-linux-command-card__head button {
  height: 36px;
  min-width: 70px;
  padding: 0 14px;
  color: var(--qy-white);
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--qy-primary), var(--qy-sky));
  font-size: 13px;
  font-weight: 900;
}

.qy-linux-command-card__head button.is-copied {
  background: linear-gradient(135deg, #16a34a, #22c55e);
}

.qy-linux-command-card pre {
  margin: 0;
  padding: 20px;
  overflow-x: auto;
  background: #07142f;
}

.qy-linux-command-card code {
  color: #dbeafe;
  font-family: Consolas, Monaco, "Courier New", monospace;
  font-size: 13px;
  line-height: 1.8;
  white-space: pre;
}

.qy-linux-trouble,
.qy-linux-notice {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.qy-linux-notice {
  grid-template-columns: repeat(3, 1fr);
}

.qy-linux-trouble article,
.qy-linux-notice div {
  padding: 28px;
  border: 1px solid var(--qy-line);
  border-radius: 28px;
  background: var(--qy-white);
  box-shadow: var(--qy-shadow-sm);
}

.qy-linux-trouble h3,
.qy-linux-notice h3 {
  margin: 0 0 10px;
  color: var(--qy-title);
  font-size: 21px;
}

.qy-linux-trouble p,
.qy-linux-notice p {
  margin: 0;
  color: var(--qy-text);
  font-size: 14px;
  line-height: 1.8;
}

.qy-linux-trouble code,
.qy-linux-notice code {
  display: block;
  margin-top: 16px;
  padding: 12px;
  color: #dbeafe;
  border-radius: 14px;
  background: #07142f;
  font-family: Consolas, Monaco, "Courier New", monospace;
  font-size: 12px;
  line-height: 1.6;
}

.qy-linux-notice code {
  display: inline;
  margin: 0;
  padding: 2px 6px;
}

.qy-linux-cta {
  position: relative;
  overflow: hidden;
  padding: 76px 0;
  color: #ffffff;
  background: linear-gradient(135deg, #07142f, #1263ff);
}

.qy-linux-cta::before {
  position: absolute;
  top: -120px;
  right: 8%;
  width: 360px;
  height: 360px;
  content: "";
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
}

.qy-linux-cta__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.qy-linux-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.2;
}

.qy-linux-cta p {
  max-width: 720px;
  margin: 0;
  color: #dbeafe;
  line-height: 1.85;
}

.qy-linux-cta__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

@media (max-width: 1100px) {
  .qy-linux-hero__inner,
  .qy-linux-layout {
    grid-template-columns: 1fr;
  }

  .qy-linux-cate {
    grid-template-columns: repeat(2, 1fr);
  }

  .qy-linux-trouble {
    grid-template-columns: repeat(2, 1fr);
  }

  .qy-linux-notice {
    grid-template-columns: 1fr;
  }

  .qy-linux-cta__inner {
    display: block;
  }

  .qy-linux-cta__actions {
    margin-top: 24px;
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .qy-linux-hero__inner {
    min-height: auto;
    padding: 58px 0;
  }

  .qy-linux-hero__content p {
    font-size: 16px;
  }

  .qy-linux-section {
    padding: 62px 0;
  }

  .qy-linux-cate,
  .qy-linux-panel,
  .qy-linux-trouble {
    grid-template-columns: 1fr;
  }

  .qy-linux-command-card__head {
    display: block;
  }

  .qy-linux-command-card__head button {
    margin-top: 14px;
  }

  .qy-linux-command-card code {
    font-size: 12px;
  }

  .qy-linux-hero__actions,
  .qy-linux-cta__actions {
    width: 100%;
  }
}