/* DJ Vault Pro product pages — Rekordbox-inspired, LingScan cobalt accent */
:root {
  --dvp-bg-dark: #0a0c10;
  --dvp-bg-panel: #12151c;
  --dvp-bg-light: #f4f6f9;
  --dvp-surface: #ffffff;
  --dvp-ink: #10131a;
  --dvp-muted: #5c6578;
  --dvp-line: #dde3ec;
  --dvp-accent: #0a73e8;
  --dvp-accent-dark: #0759b3;
  --dvp-accent-soft: rgba(10, 115, 232, 0.12);
  --dvp-warn-bg: #fff8e7;
  --dvp-warn-ink: #7a5a14;
  --dvp-radius: 12px;
  --dvp-font: "Segoe UI", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body.dvp-page {
  margin: 0;
  font-family: var(--dvp-font);
  color: var(--dvp-ink);
  line-height: 1.65;
  background: var(--dvp-bg-light);
  overflow-x: hidden;
}

.dvp-skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  padding: 0.5rem 0.75rem;
  background: var(--dvp-ink);
  color: #fff;
  text-decoration: none;
}
.dvp-skip:focus { top: 1rem; }

/* Header */
.dvp-header {
  position: sticky;
  top: 0;
  z-index: 12;
  background: rgba(10, 12, 16, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.dvp-header-inner {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.dvp-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: #f5f7fa;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
}
.dvp-brand-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  flex-shrink: 0;
}
.dvp-brand-name { white-space: nowrap; }
.dvp-brand img { width: 28px; height: 28px; opacity: 0.92; }
.dvp-brand small {
  color: rgba(245, 247, 250, 0.55);
  font-weight: 500;
  font-size: 0.78rem;
}
.dvp-nav {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.25rem 1.25rem;
  align-items: center;
}
.dvp-nav a {
  color: rgba(245, 247, 250, 0.72);
  text-decoration: none;
  font-size: 0.88rem;
  white-space: nowrap;
}
.dvp-nav a:hover,
.dvp-nav a:focus-visible,
.dvp-nav a[aria-current="page"] {
  color: #fff;
}
#download {
  scroll-margin-top: 80px;
}

/* Hero — dark split */
.dvp-hero {
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(10, 115, 232, 0.22), transparent 55%),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(10, 115, 232, 0.08), transparent 50%),
    var(--dvp-bg-dark);
  color: #f5f7fa;
  padding: 2.5rem 0 4rem;
}
.dvp-hero-inner {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(220px, 0.85fr) minmax(0, 1.15fr);
  gap: 2.5rem;
  align-items: center;
}
.dvp-hero-copy {
  min-width: 0;
}
.dvp-kicker {
  margin: 0 0 0.75rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(10, 115, 232, 0.95);
}
.dvp-hero h1 {
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
  max-width: 14ch;
}
.dvp-hero-lead {
  margin: 1.1rem 0 0.9rem;
  max-width: 38rem;
  color: rgba(245, 247, 250, 0.72);
  font-size: clamp(1rem, 2vw, 1.15rem);
}
.dvp-hero-highlights {
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
  max-width: 36rem;
}
.dvp-hero-highlights li {
  position: relative;
  padding: 0.55rem 0.9rem 0.55rem 1.05rem;
  border-left: 3px solid var(--dvp-accent);
  border-radius: 0 10px 10px 0;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(245, 247, 250, 0.94);
  font-size: 0.98rem;
  font-weight: 650;
  line-height: 1.45;
  text-align: left;
}
.dvp-path {
  margin: 0 0 1.4rem;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}
.dvp-path li {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(245, 247, 250, 0.88);
  font-size: 0.85rem;
}
.dvp-demo-steps {
  margin: 0;
  padding-left: 1.2rem;
  max-width: 40rem;
  color: var(--dvp-muted);
}
.dvp-demo-steps li { margin: 0.55rem 0; }
.dvp-open-hint {
  margin: 1.15rem 0 0;
  max-width: 38rem;
  padding: 0.95rem 1.15rem;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--dvp-radius);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(245, 247, 250, 0.88);
  font-size: 0.95rem;
  line-height: 1.55;
}
.dvp-open-hint strong {
  display: block;
  font-size: 1.08rem;
  margin-bottom: 0.2rem;
  color: #fff;
  letter-spacing: -0.01em;
}
.dvp-open-hint-light {
  max-width: none;
  margin: 0 0 1.15rem;
  background: var(--dvp-accent-soft);
  border-color: rgba(10, 115, 232, 0.28);
  color: var(--dvp-ink);
}
.dvp-open-hint-light strong {
  color: var(--dvp-ink);
}

.dvp-platforms {
  width: min(1180px, calc(100% - 2rem));
  margin: 2rem auto 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.dvp-os-card {
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 1.35rem 1.4rem 1.3rem;
  text-align: left;
  min-width: 0;
}
.dvp-os-card.is-current {
  border-color: rgba(10, 115, 232, 0.5);
  box-shadow: 0 0 0 1px rgba(10, 115, 232, 0.22), 0 16px 40px rgba(0, 0, 0, 0.22);
}
.dvp-os-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
}
.dvp-os-badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 0.65rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.dvp-os-ver {
  color: rgba(245, 247, 250, 0.58);
  font-size: 0.8rem;
  font-weight: 650;
}
.dvp-os-card h2 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
  color: #fff;
}
.dvp-os-meta {
  margin: 0.35rem 0 1rem;
  color: rgba(245, 247, 250, 0.62);
  font-size: 0.9rem;
}
.dvp-os-card .dvp-btn {
  width: 100%;
}
.dvp-os-tip {
  margin: 1rem 0 0;
  padding: 0.85rem 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(245, 247, 250, 0.82);
  font-size: 0.9rem;
  line-height: 1.5;
}
.dvp-os-tip strong {
  display: block;
  color: #fff;
  margin-bottom: 0.15rem;
}
.dvp-os-docs {
  margin: 0.85rem 0 0;
  color: rgba(245, 247, 250, 0.62);
  font-size: 0.86rem;
  line-height: 1.55;
}
.dvp-os-docs a {
  color: #fff;
  font-weight: 650;
  text-underline-offset: 0.16em;
}
.dvp-os-docs a:hover { text-decoration-thickness: 2px; }

.dvp-install-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 0.5rem;
}
.dvp-install-grid h3 {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
}

.dvp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}
.dvp-readme-link {
  margin: 0.75rem 0 0;
  max-width: 38rem;
  font-size: 0.88rem;
  line-height: 1.5;
  color: rgba(245, 247, 250, 0.72);
}
.dvp-readme-link a {
  color: #fff;
  font-weight: 650;
  text-underline-offset: 0.16em;
}
.dvp-readme-link a:hover { text-decoration-thickness: 2px; }
.dvp-mobile-readme {
  display: block;
  width: min(1180px, 100%);
  margin: 0.45rem auto 0;
  color: rgba(245, 247, 250, 0.82);
  font-size: 0.82rem;
  font-weight: 650;
  text-align: center;
  text-underline-offset: 0.16em;
}
.dvp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 46px;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}
.dvp-btn:active { transform: scale(0.98); }
.dvp-btn-primary {
  background: var(--dvp-accent);
  color: #fff;
  box-shadow: 0 8px 28px rgba(10, 115, 232, 0.35);
}
.dvp-btn-primary:hover { background: var(--dvp-accent-dark); }
.dvp-btn-ghost {
  background: transparent;
  color: #f5f7fa;
  border-color: rgba(255, 255, 255, 0.22);
}
.dvp-btn-ghost:hover { border-color: rgba(255, 255, 255, 0.45); }
.dvp-meta {
  margin: 1.25rem 0 0;
  font-size: 0.82rem;
  color: rgba(245, 247, 250, 0.5);
}

.dvp-hero-logo {
  width: clamp(160px, 42vw, 240px);
  height: auto;
  border-radius: 22%;
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(255, 255, 255, 0.06);
  justify-self: center;
}

/* Legacy preview / notice — never show */
.dvp-visual-caption,
.dvp-preview-caption,
.dvp-mobile-notice {
  display: none !important;
  height: 0 !important;
  overflow: hidden !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
}

/* Light sections */
.dvp-main { padding: 0 0 4rem; }
.dvp-section {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 3.5rem 0;
}
.dvp-section h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}
.dvp-section p { color: var(--dvp-muted); max-width: 52rem; }

.dvp-spec-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.dvp-spec-card {
  background: var(--dvp-surface);
  border: 1px solid var(--dvp-line);
  border-radius: var(--dvp-radius);
  padding: 1.25rem 1.35rem;
}
.dvp-spec-card strong {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dvp-muted);
  margin-bottom: 0.35rem;
}
.dvp-spec-card span {
  font-size: 1.05rem;
  font-weight: 650;
  color: var(--dvp-ink);
}

.dvp-feature-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}
.dvp-feature {
  background: var(--dvp-surface);
  border-radius: var(--dvp-radius);
  padding: 1.5rem;
  border: 1px solid var(--dvp-line);
}
.dvp-feature:nth-child(2) {
  background: linear-gradient(160deg, #fff 0%, #eef4fc 100%);
  border-color: rgba(10, 115, 232, 0.18);
}
.dvp-feature h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}
.dvp-feature p {
  margin: 0;
  font-size: 0.92rem;
}

.dvp-partner {
  background: var(--dvp-accent-soft);
  border: 1px solid rgba(10, 115, 232, 0.2);
  border-radius: var(--dvp-radius);
  padding: 1.35rem 1.5rem;
  margin-top: 1.5rem;
}
.dvp-partner p { margin: 0; font-size: 0.92rem; }
.dvp-partner a { color: var(--dvp-accent-dark); }

.dvp-install-steps {
  counter-reset: dvp-step;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 0.75rem;
}
.dvp-install-steps li {
  counter-increment: dvp-step;
  background: var(--dvp-surface);
  border: 1px solid var(--dvp-line);
  border-radius: var(--dvp-radius);
  padding: 1rem 1.15rem 1rem 3.25rem;
  position: relative;
  font-size: 0.95rem;
}
.dvp-install-steps li::before {
  content: counter(dvp-step);
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: var(--dvp-accent);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.dvp-install-steps li.dvp-install-key {
  border-color: rgba(10, 115, 232, 0.4);
  background: linear-gradient(160deg, #fff 0%, #eef4fc 100%);
  font-size: 1rem;
}

.dvp-callout {
  background: var(--dvp-accent-soft);
  color: var(--dvp-ink);
  border: 1px solid rgba(10, 115, 232, 0.18);
  border-radius: var(--dvp-radius);
  padding: 1rem 1.15rem;
  font-size: 0.92rem;
  margin-top: 1rem;
}

/* Guide layout */
.dvp-guide-layout {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 2.5rem;
  align-items: start;
}
.dvp-toc {
  position: sticky;
  top: 80px;
  background: var(--dvp-surface);
  border: 1px solid var(--dvp-line);
  border-radius: var(--dvp-radius);
  padding: 1rem;
  font-size: 0.85rem;
}
.dvp-toc strong {
  display: block;
  margin-bottom: 0.65rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dvp-muted);
}
.dvp-toc a {
  display: block;
  padding: 0.35rem 0;
  color: var(--dvp-muted);
  text-decoration: none;
}
.dvp-toc a:hover,
.dvp-toc a:focus-visible { color: var(--dvp-accent-dark); }

.dvp-article {
  background: var(--dvp-surface);
  border: 1px solid var(--dvp-line);
  border-radius: calc(var(--dvp-radius) + 2px);
  padding: 2rem 2.25rem;
}
.dvp-article-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
}
.dvp-article-logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  flex-shrink: 0;
}
.dvp-article h1 {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  letter-spacing: -0.02em;
}
.dvp-article .dvp-byline {
  margin: 0 0 2rem;
  color: var(--dvp-muted);
  font-size: 0.92rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--dvp-line);
}
.dvp-article h2 {
  margin: 2.25rem 0 0.75rem;
  font-size: 1.35rem;
  scroll-margin-top: 88px;
}
.dvp-article h3 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.05rem;
}
.dvp-article p,
.dvp-article li { color: #2a3140; }
.dvp-article ul,
.dvp-article ol { padding-left: 1.25rem; }
.dvp-article table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1rem 0;
}
.dvp-article th,
.dvp-article td {
  border: 1px solid var(--dvp-line);
  padding: 0.55rem 0.75rem;
  text-align: left;
  vertical-align: top;
}
.dvp-article th { background: #efede6; font-weight: 650; }
.dvp-article blockquote {
  margin: 1rem 0;
  padding: 0.85rem 1rem;
  background: #efede6;
  border-left: 3px solid var(--dvp-accent);
  color: var(--dvp-muted);
  font-size: 0.92rem;
}
.dvp-article hr {
  border: none;
  border-top: 1px solid var(--dvp-line);
  margin: 2rem 0;
}

/* Footer */
.dvp-footer {
  background: var(--dvp-bg-panel);
  color: rgba(245, 247, 250, 0.72);
  padding: 2.5rem 0;
  font-size: 0.88rem;
}
.dvp-footer-inner {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}
.dvp-footer a { color: rgba(10, 115, 232, 0.95); }
.dvp-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  margin: 0.75rem 0;
}
.dvp-footer-nav a {
  color: rgba(245, 247, 250, 0.65);
  text-decoration: none;
}
.dvp-footer-nav a:hover { color: #fff; }

/* Sticky mobile download bar */
.dvp-mobile-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 15;
  padding: 0.7rem max(1rem, env(safe-area-inset-right)) calc(0.7rem + env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
  background: rgba(10, 12, 16, 0.96);
  backdrop-filter: blur(14px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.28);
}
.dvp-mobile-bar[hidden] { display: none !important; }
.dvp-mobile-bar-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.55rem;
}
.dvp-mobile-bar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.dvp-mobile-bar-text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 0.78rem;
  line-height: 1.35;
  color: rgba(245, 247, 250, 0.72);
}
.dvp-mobile-bar-text strong {
  display: block;
  color: #fff;
  font-size: 0.9rem;
  margin-bottom: 0.08rem;
}
.dvp-mobile-bar-copy {
  appearance: none;
  flex: 0 0 auto;
  min-height: 44px;
  padding: 0 0.2rem;
  border: 0;
  background: none;
  color: #8ec2ff;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 650;
  text-decoration: underline;
  text-underline-offset: 0.18em;
  white-space: nowrap;
  cursor: pointer;
}
.dvp-mobile-bar-copy:hover,
.dvp-mobile-bar-copy:focus-visible {
  color: #fff;
}
.dvp-mobile-bar-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
}
.dvp-mobile-bar-actions .dvp-btn,
.dvp-mobile-bar-mac,
.dvp-mobile-bar-win {
  width: 100%;
  flex-direction: column;
  gap: 0.08rem;
  min-height: 52px;
  padding: 0.5rem 0.65rem;
  font-size: 0.95rem;
}
.dvp-mobile-bar-actions .dvp-btn small {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  opacity: 0.82;
}
.dvp-mobile-bar-actions .dvp-btn.is-preferred {
  box-shadow: 0 0 0 2px #fff, 0 8px 24px rgba(10, 115, 232, 0.42);
}
.dvp-btn-sm {
  min-height: 44px;
  min-width: 44px;
  padding: 0.55rem 0.95rem;
  font-size: 0.88rem;
}
.dvp-btn-outline-warn {
  background: transparent;
  color: #f5d78a;
  border-color: rgba(245, 215, 138, 0.45);
}
.dvp-btn-outline-warn:hover { border-color: rgba(245, 215, 138, 0.75); }
.dvp-btn-outline {
  background: transparent;
  color: rgba(245, 247, 250, 0.88);
  border-color: rgba(255, 255, 255, 0.28);
}
.dvp-btn-outline:hover { border-color: rgba(255, 255, 255, 0.5); }

body.dvp-has-mobile-bar .dvp-footer {
  padding-bottom: calc(9rem + env(safe-area-inset-bottom));
}

/* Collapsible guide TOC */
.dvp-toc-toggle {
  display: none;
  width: 100%;
  min-height: 44px;
  margin: 0 0 0.75rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--dvp-line);
  border-radius: var(--dvp-radius);
  background: var(--dvp-surface);
  color: var(--dvp-ink);
  font: inherit;
  font-weight: 650;
  font-size: 0.92rem;
  text-align: left;
  cursor: pointer;
}
.dvp-toc-toggle::after {
  content: "展开";
  float: right;
  color: var(--dvp-accent-dark);
  font-weight: 600;
  font-size: 0.82rem;
}
.dvp-toc-toggle[aria-expanded="true"]::after { content: "收起"; }

.dvp-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1rem 0;
  border: 1px solid var(--dvp-line);
  border-radius: var(--dvp-radius);
}
.dvp-table-scroll table {
  margin: 0;
  min-width: 520px;
}

html.dvp-is-mobile .dvp-btn,
html.dvp-is-mobile .dvp-nav a,
html.dvp-is-mobile .dvp-toc a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
html.dvp-is-mobile .dvp-mobile-bar-actions .dvp-btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

@media (max-width: 900px) {
  .dvp-hero-inner {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    text-align: center;
  }
  .dvp-hero-logo {
    width: clamp(96px, 24vw, 128px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
    margin: 0 auto;
  }
  .dvp-hero h1 { max-width: none; }
  .dvp-hero-lead,
  .dvp-hero-highlights,
  .dvp-open-hint { margin-left: auto; margin-right: auto; text-align: left; }
  .dvp-hero-highlights { max-width: 28rem; }
  .dvp-spec-grid,
  .dvp-feature-row,
  .dvp-platforms,
  .dvp-install-grid { grid-template-columns: 1fr; }
  .dvp-guide-layout { grid-template-columns: 1fr; }
  .dvp-toc { position: static; }
  .dvp-nav { gap: 0.75rem; }
  .dvp-header-inner { width: min(1180px, calc(100% - 1.25rem)); }
  .dvp-hero-inner,
  .dvp-platforms,
  .dvp-section,
  .dvp-guide-layout,
  .dvp-footer-inner { width: min(1180px, calc(100% - 1.25rem)); }
}

@media (max-width: 768px) {
  .dvp-hero { padding: 1.75rem 0 2.75rem; }
  .dvp-hero h1 { max-width: none; font-size: clamp(1.85rem, 8vw, 2.6rem); }
  .dvp-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .dvp-actions .dvp-btn {
    width: 100%;
    justify-content: center;
  }
  .dvp-section { padding: 2.25rem 0; }
  .dvp-nav a {
    padding: 0.35rem 0;
    font-size: 0.85rem;
  }
  .dvp-toc-toggle { display: block; }
  .dvp-toc:not(.is-open) { display: none; }
  .dvp-toc.is-open { display: block; margin-bottom: 0.5rem; }
  .dvp-article h2 { scroll-margin-top: 76px; }
}

@media (max-width: 640px) {
  .dvp-brand-name { display: none; }
  .dvp-brand small { display: none; }
  .dvp-brand-logo { width: 36px; height: 36px; }
  .dvp-article { padding: 1.35rem 1.15rem; }
  .dvp-article-head { gap: 0.75rem; }
  .dvp-article-logo { width: 48px; height: 48px; border-radius: 12px; }
}

@media (max-width: 360px) {
  .dvp-mobile-bar-actions .dvp-btn {
    font-size: 0.88rem;
    padding: 0.45rem 0.4rem;
  }
}

@media (max-width: 480px) {
  .dvp-header-inner {
    flex-wrap: wrap;
    min-height: 56px;
    padding: 0.35rem 0;
  }
  .dvp-nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.15rem;
  }
}