:root {
  --bg: #edf3f8;
  --bg-deep: #e3eaf1;
  --paper: rgba(251, 253, 255, 0.82);
  --paper-strong: #ffffff;
  --ink: #111926;
  --ink-soft: #58667a;
  --line: rgba(17, 25, 38, 0.1);
  --line-strong: rgba(17, 25, 38, 0.16);
  --accent: #1967d2;
  --accent-2: #138a7a;
  --accent-3: #14283f;
  --accent-soft: rgba(25, 103, 210, 0.11);
  --accent-soft-2: rgba(19, 138, 122, 0.1);
  --success: #17765c;
  --warning: #9a5a13;
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 12px;
  --shadow: 0 14px 38px rgba(15, 23, 42, 0.07);
  --shadow-strong: 0 20px 56px rgba(15, 23, 42, 0.1);
  --container: 1220px;
  --font-display: "Outfit", "Noto Sans SC", "Segoe UI Variable Display", sans-serif;
  --font-body: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  line-height: 1.5;
  background:
    radial-gradient(circle at 12% 10%, rgba(25, 103, 210, 0.12), transparent 24%),
    radial-gradient(circle at 88% 8%, rgba(19, 138, 122, 0.1), transparent 20%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
}

::selection {
  color: #f8f4ed;
  background: rgba(24, 49, 63, 0.78);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(23, 21, 29, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 21, 29, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  mask: linear-gradient(180deg, rgba(0, 0, 0, 0.3), transparent 85%);
}

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

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

[id] {
  scroll-margin-top: 120px;
}

code {
  display: inline-block;
  padding: 0.18rem 0.48rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
}

.page-shell {
  position: relative;
  max-width: calc(var(--container) + 48px);
  margin: 0 auto;
  padding: 20px 24px 42px;
}

.site-header,
.showcase-card,
.workflow-preview-card,
.mode-card,
.install-card,
.feature-card,
.download-card,
.faq-list,
.status-banner,
.download-note,
.site-footer {
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 18px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 18px;
  background: rgba(248, 251, 255, 0.86);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand img {
  width: 40px;
  height: 40px;
}

.brand span {
  display: grid;
  gap: 3px;
}

.brand strong,
.section-heading h2,
.hero h1 {
  font-family: var(--font-display);
}

.brand strong {
  font-size: 1.1rem;
  line-height: 1;
  letter-spacing: -0.03em;
}

.brand small {
  color: var(--ink-soft);
  font-size: 0.76rem;
}

.site-nav,
.header-actions,
.hero-actions,
.download-grid,
.install-grid,
.feature-grid,
.workflow-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.site-nav {
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  padding: 6px;
  border: 1px solid rgba(23, 21, 29, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.32);
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.header-actions {
  flex: 0 0 auto;
  align-items: center;
  justify-content: flex-end;
  margin-left: auto;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  white-space: nowrap;
  transition: color 0.22s ease, background 0.22s ease;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  padding: 4px;
  border: 1px solid rgba(23, 21, 29, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.45);
}

.lang-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  min-height: 34px;
  padding: 0 10px;
  border-radius: 999px;
  color: var(--ink-soft);
  font-weight: 700;
  transition: background 0.22s ease, color 0.22s ease;
}

.lang-link.current {
  color: #f7f2ea;
  background: linear-gradient(135deg, var(--accent-3), #26475b);
}

.site-nav a:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.62);
}

a:focus-visible {
  outline: 2px solid rgba(28, 124, 114, 0.72);
  outline-offset: 3px;
}

.ghost-button,
.primary-button,
.secondary-button,
.download-button,
.repo-fallback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  letter-spacing: -0.01em;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease,
    background 0.22s ease;
}

.primary-button {
  color: #f9f7f2;
  background: linear-gradient(135deg, var(--accent-3), #22456d);
  box-shadow: 0 10px 22px rgba(20, 40, 63, 0.14);
}

.primary-button.small {
  min-height: 42px;
  padding: 0 16px;
}

.secondary-button,
.repo-fallback {
  color: var(--ink);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.5);
}

.ghost-button {
  color: var(--ink);
  border-color: rgba(23, 21, 29, 0.08);
  background: rgba(255, 255, 255, 0.34);
}

.header-link-button {
  gap: 8px;
  min-height: 42px;
  padding: 0 14px;
  font-size: 0.92rem;
}

.button-logo {
  display: block;
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}

.github-logo {
  border-radius: 999px;
}

.gitee-logo {
  border-radius: 4px;
}

.download-button {
  width: 100%;
  color: #f9f7f2;
  background: linear-gradient(135deg, var(--accent), #285e58);
  box-shadow: 0 10px 24px rgba(28, 124, 114, 0.18);
}

.ghost-button:hover,
.primary-button:hover,
.secondary-button:hover,
.download-button:hover,
.repo-fallback:hover {
  transform: translateY(-1px);
}

.section {
  padding-top: 96px;
}

.section-sm {
  padding-top: 28px;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}

.section-heading.narrow {
  max-width: 640px;
}

.section-heading.wide {
  max-width: 1100px;
}

.section-heading h2 {
  margin: 12px 0 14px;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.section-heading p,
.hero-text,
.showcase-card p,
.mode-card p,
.feature-card p,
.download-card p,
.faq-list p,
.download-note p,
.site-footer p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.76;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(23, 21, 29, 0.08);
  background: rgba(255, 255, 255, 0.48);
  color: var(--accent-3);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 56px;
  align-items: center;
  min-height: clamp(560px, 70vh, 680px);
}

.hero-copy {
  max-width: 580px;
  animation: reveal-up 0.8s ease both;
}

.hero h1 {
  margin: 14px 0 16px;
  font-size: clamp(1.95rem, 3.15vw, 3.05rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.hero-text {
  max-width: 520px;
  font-size: 0.98rem;
  line-height: 1.8;
}

.hero-actions {
  margin: 22px 0 20px;
}

.hero-actions .primary-button,
.hero-actions .secondary-button,
.hero-actions .ghost-button {
  min-width: 146px;
  min-height: 44px;
}

.hero-points {
  display: grid;
  gap: 12px;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
}

.hero-points li {
  position: relative;
  padding-left: 28px;
  color: var(--ink);
  line-height: 1.68;
}

.hero-points li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 5px rgba(25, 103, 210, 0.07);
}

.hero-visual {
  position: relative;
  min-height: 600px;
  animation: reveal-up 0.9s ease 0.1s both;
}

.hero-stage {
  position: relative;
  min-height: 600px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.56);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.4), rgba(244, 248, 253, 0.78)),
    rgba(244, 249, 254, 0.74);
  box-shadow: var(--shadow-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.hero-stage::before {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: calc(var(--radius-xl) - 10px);
  border: 1px solid rgba(17, 25, 38, 0.05);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 30%),
    linear-gradient(90deg, rgba(17, 25, 38, 0.03) 1px, transparent 1px),
    linear-gradient(rgba(17, 25, 38, 0.03) 1px, transparent 1px);
  background-size: auto, 28px 28px, 28px 28px;
  mask: linear-gradient(180deg, rgba(0, 0, 0, 0.38), transparent 82%);
  pointer-events: none;
}

.visual-orbit {
  position: absolute;
  border-radius: 999px;
  filter: blur(18px);
  opacity: 0.58;
}

.orbit-a {
  top: 40px;
  right: 28px;
  width: 190px;
  height: 190px;
  background: rgba(25, 103, 210, 0.16);
}

.orbit-b {
  bottom: 56px;
  left: 10px;
  width: 170px;
  height: 170px;
  background: rgba(19, 138, 122, 0.14);
}

.hero-preview {
  position: absolute;
  border-radius: calc(var(--radius-lg) + 2px);
  padding: 10px;
  border: 1px solid rgba(17, 25, 38, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(238, 244, 250, 0.92)),
    rgba(255, 255, 255, 0.9);
  box-shadow:
    0 18px 42px rgba(15, 23, 42, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.hero-preview .media-frame,
.workflow-preview-card .media-frame {
  position: relative;
  overflow: hidden;
  border-radius: calc(var(--radius-lg) - 8px);
  border: 1px solid rgba(17, 25, 38, 0.08);
  background: linear-gradient(180deg, #eef4fa, #dce6f0);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.showcase-card .media-frame {
  position: relative;
  overflow: hidden;
  border-radius: 0;
  background: #dce6f0;
}

.hero-preview img,
.showcase-card img,
.workflow-preview-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.hero-preview-main {
  top: 30px;
  left: 30px;
  width: 70%;
  transform: rotate(-0.6deg);
  animation: none;
}

.hero-preview-main .media-frame {
  aspect-ratio: 4 / 5;
}

.hero-preview-side {
  top: 122px;
  right: 30px;
  width: 34%;
  transform: rotate(1deg);
  animation: none;
}

.hero-preview-side .media-frame {
  aspect-ratio: 4 / 5;
}

.preview-label {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 1;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(17, 25, 38, 0.08);
  background: rgba(248, 251, 255, 0.92);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
  color: var(--accent-3);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.hero-specs {
  position: absolute;
  right: 28px;
  bottom: 28px;
  left: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.08);
}

.hero-specs span,
.platform-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

.hero-specs span {
  border: 1px solid rgba(17, 25, 38, 0.08);
  background: rgba(245, 249, 253, 0.92);
  color: var(--accent-3);
}

.showcase-card h3,
.mode-card h3,
.feature-card h3,
.download-card h3 {
  display: block;
  margin: 0 0 10px;
  font-size: 1.16rem;
  letter-spacing: -0.03em;
}

.download-grid,
.install-grid,
.workflow-grid,
.feature-grid {
  display: grid;
  gap: 18px;
}

.mode-card,
.install-card,
.feature-card,
.download-card,
.showcase-card,
.workflow-preview-card,
.status-banner,
.download-note,
.faq-list,
.site-footer {
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow);
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}

.showcase-card {
  overflow: hidden;
}

.showcase-card.featured {
  background:
    linear-gradient(180deg, rgba(20, 40, 63, 0.03), rgba(255, 255, 255, 0.52)),
    var(--paper);
}

.showcase-card.featured .card-copy {
  display: grid;
  gap: 10px;
}

.showcase-card h3,
.mode-card h3,
.install-card h3,
.feature-card h3,
.download-card h3 {
  line-height: 1.18;
}

.showcase-card .card-copy {
  position: relative;
  padding: 22px 24px 24px;
}

.showcase-card .card-copy::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  width: 52px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(25, 103, 210, 0.8), rgba(19, 138, 122, 0.45));
}

.showcase-card .card-copy.compact {
  padding-top: 18px;
}

.showcase-card .media-frame {
  border-bottom: 1px solid rgba(17, 25, 38, 0.08);
}

.showcase-card.featured .media-frame.wide {
  aspect-ratio: auto;
}

.demo-card .media-frame {
  height: clamp(296px, 28vw, 360px);
  min-height: 0;
  aspect-ratio: auto;
}

.demo-reading-card img {
  object-position: center top;
}

.demo-horizontal-card img {
  object-position: center center;
}

.workflow-preview-shell {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.workflow-preview-card {
  position: relative;
  width: min(100%, 360px);
  overflow: hidden;
  padding: 10px;
  border-color: rgba(17, 25, 38, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(238, 244, 250, 0.92)),
    rgba(255, 255, 255, 0.9);
  box-shadow:
    0 18px 42px rgba(15, 23, 42, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.workflow-preview-card .media-frame {
  border-radius: 0;
  aspect-ratio: 4 / 5;
}

.caption-note {
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px solid rgba(17, 25, 38, 0.08);
  font-size: 0.9rem;
}

.workflow-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mode-card,
.install-card,
.feature-card,
.download-card {
  padding: 24px;
}

.mode-card {
  position: relative;
  overflow: hidden;
}

.mode-card::after {
  content: "";
  position: absolute;
  inset: auto -30px -30px auto;
  width: 120px;
  height: 120px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(28, 124, 114, 0.12), transparent 70%);
}

.mode-index {
  display: inline-flex;
  margin-bottom: 16px;
  font-family: var(--font-display);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.install-grid {
  position: relative;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.install-grid::before {
  content: "";
  position: absolute;
  top: 26px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(25, 103, 210, 0.26), transparent);
}

.install-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 248px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(248, 251, 255, 0.84), rgba(255, 255, 255, 0.58)),
    var(--paper);
}

.install-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, rgba(25, 103, 210, 0.78), rgba(19, 138, 122, 0.36));
}

.install-card:nth-child(2)::before {
  background: linear-gradient(90deg, rgba(216, 137, 53, 0.7), rgba(25, 103, 210, 0.3));
}

.install-card:nth-child(3)::before {
  background: linear-gradient(90deg, rgba(19, 138, 122, 0.72), rgba(25, 103, 210, 0.32));
}

.install-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.install-head .mode-index {
  margin-bottom: 0;
}

.install-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid rgba(17, 25, 38, 0.08);
  background: rgba(245, 249, 253, 0.92);
  color: var(--accent-3);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.install-card h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
  letter-spacing: -0.02em;
}

.install-card p {
  max-width: 36ch;
}

.install-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 18px;
}

.install-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 11px;
  border-radius: 999px;
  border: 1px solid rgba(17, 25, 38, 0.08);
  background: rgba(255, 255, 255, 0.66);
  color: var(--ink-soft);
  font-size: 0.82rem;
  white-space: nowrap;
}

.install-card:nth-child(1) {
  background:
    linear-gradient(180deg, rgba(24, 49, 63, 0.03), rgba(255, 255, 255, 0.56)),
    var(--paper);
}

.install-card:nth-child(2) {
  background:
    linear-gradient(180deg, rgba(216, 137, 53, 0.06), rgba(255, 255, 255, 0.56)),
    var(--paper);
}

.install-card:nth-child(3) {
  background:
    linear-gradient(180deg, rgba(28, 124, 114, 0.06), rgba(255, 255, 255, 0.56)),
    var(--paper);
}

.install-card p + p {
  margin-top: 10px;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
  position: relative;
  min-height: 208px;
}

.feature-card:nth-child(3n + 1) {
  background:
    linear-gradient(180deg, rgba(28, 124, 114, 0.06), rgba(255, 255, 255, 0.5)),
    var(--paper);
}

.feature-card:nth-child(3n + 2) {
  background:
    linear-gradient(180deg, rgba(216, 137, 53, 0.06), rgba(255, 255, 255, 0.5)),
    var(--paper);
}

.feature-card:nth-child(3n) {
  background:
    linear-gradient(180deg, rgba(24, 49, 63, 0.06), rgba(255, 255, 255, 0.5)),
    var(--paper);
}

.download-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.status-banner {
  margin: 20px 0 18px;
  padding: 18px 22px;
  color: var(--ink);
}

.status-banner.success {
  border-color: rgba(25, 104, 94, 0.24);
  background: rgba(25, 104, 94, 0.08);
}

.status-banner.warning {
  border-color: rgba(154, 90, 19, 0.22);
  background: rgba(154, 90, 19, 0.08);
}

.download-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.download-card.recommended {
  border-color: rgba(28, 124, 114, 0.28);
}

.download-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.download-version {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(24, 49, 63, 0.08);
  color: var(--accent-3);
  font-weight: 700;
  white-space: nowrap;
}

.platform-pill.good {
  color: var(--success);
  background: rgba(25, 104, 94, 0.12);
}

.platform-pill.warn {
  color: var(--warning);
  background: rgba(154, 90, 19, 0.1);
}

.platform-pill.neutral {
  color: var(--accent-3);
  background: rgba(24, 49, 63, 0.08);
}

.download-hints,
.meta-list {
  display: grid;
  gap: 10px;
}

.download-hints {
  display: flex;
  flex-wrap: wrap;
}

.download-hints span {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.meta-list {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.48);
}

.meta-list > span {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.meta-list b {
  color: var(--ink);
  text-align: right;
  word-break: break-all;
}

.meta-list b.empty-value {
  color: var(--ink-soft);
  font-weight: 500;
}

.download-note {
  margin-top: 18px;
  padding: 20px 22px;
}

.faq-list {
  padding: 12px 22px;
}

.faq-list details {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.faq-list details[open] {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), transparent);
}

.faq-list details:last-child {
  border-bottom: none;
}

.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--accent);
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list p {
  margin-top: 12px;
  max-width: 900px;
}

.site-footer {
  margin-top: 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 0 6px;
  border: none;
  border-top: 1px solid rgba(17, 25, 38, 0.08);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-align: center;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.footer-title {
  font-family: var(--font-display);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(17, 25, 38, 0.7);
}

.footer-note {
  max-width: 720px;
  margin: 0;
  color: rgba(88, 102, 122, 0.9);
  font-size: 0.82rem;
  line-height: 1.7;
}

@media (hover: hover) and (pointer: fine) {
  .mode-card:hover,
  .install-card:hover,
  .feature-card:hover,
  .download-card:hover,
  .showcase-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 24px 54px rgba(32, 20, 34, 0.12);
  }

  .showcase-card:hover img,
  .hero-preview:hover img,
  .workflow-preview-card:hover img {
    transform: scale(1.03);
  }
}

.skeleton {
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    rgba(23, 21, 29, 0.04),
    rgba(23, 21, 29, 0.09),
    rgba(23, 21, 29, 0.04)
  );
  background-size: 220% 100%;
  animation: shimmer 1.4s linear infinite;
}

.skeleton.badge {
  width: 108px;
  height: 28px;
}

.skeleton.title {
  width: 56%;
  height: 24px;
}

.skeleton.button {
  width: 100%;
  height: 48px;
  margin-top: auto;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

@keyframes float-card {
  0%,
  100% {
    transform: translateY(0) rotate(var(--card-rotate, 0deg));
  }
  50% {
    transform: translateY(-10px) rotate(var(--card-rotate, 0deg));
  }
}

.hero-preview-main {
  --card-rotate: -4deg;
}

.hero-preview-side {
  --card-rotate: 7deg;
}

@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1180px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: unset;
  }

  .hero-visual {
    min-height: 700px;
  }

  .hero-stage {
    min-height: 700px;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .showcase-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  .hero {
    gap: 40px;
  }

  .hero-copy {
    max-width: none;
  }

  .hero-stage {
    padding: 24px;
  }

  .hero-preview-main {
    top: 24px;
    left: 24px;
  }

  .hero-preview-side {
    top: 124px;
    right: 24px;
    width: 38%;
  }

  .workflow-grid,
  .install-grid,
  .download-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .install-grid::before {
    display: none;
  }

  .site-header {
    gap: 12px;
    padding: 14px 16px;
  }

  .site-nav {
    display: none;
  }

  .showcase-grid {
    gap: 18px;
  }

  .showcase-card .card-copy {
    padding: 20px 20px 22px;
  }

  .showcase-card .card-copy::before {
    left: 20px;
  }

  .mode-card,
  .install-card,
  .feature-card,
  .download-card {
    padding: 22px;
  }

  .header-actions {
    gap: 8px;
    flex-wrap: nowrap;
  }

  .header-actions .ghost-button {
    display: none;
  }

  .header-actions .primary-button.small {
    min-height: 40px;
    padding: 0 14px;
    font-size: 0.92rem;
  }

  .faq-list {
    padding: 10px 18px;
  }

  .site-footer {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 720px) {
  .page-shell {
    padding: 14px 14px 30px;
  }

  .section {
    padding-top: 68px;
  }

  .section-heading {
    margin-bottom: 26px;
  }

  .section-heading h2 {
    font-size: 1.56rem;
    line-height: 1.14;
  }

  .eyebrow {
    padding: 6px 10px;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
  }

  .hero {
    gap: 30px;
  }

  .hero h1 {
    font-size: 1.68rem;
    line-height: 1.12;
  }

  .hero-text {
    font-size: 0.95rem;
    line-height: 1.7;
  }

  .site-header {
    top: 6px;
    gap: 10px;
    padding: 12px;
    border-radius: 16px;
  }

  .brand {
    gap: 10px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .brand strong {
    font-size: 1.02rem;
  }

  .brand small {
    font-size: 0.72rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions > a {
    width: 100%;
  }

  .header-actions {
    width: auto;
    gap: 6px;
    min-width: 0;
  }

  .hero-actions {
    margin: 18px 0 18px;
    gap: 10px;
  }

  .hero-actions .primary-button,
  .hero-actions .secondary-button,
  .hero-actions .ghost-button {
    min-height: 42px;
  }

  .header-actions .lang-switch {
    flex: 0 0 auto;
  }

  .header-actions .primary-button.small {
    min-width: 0;
    max-width: 152px;
    padding: 0 12px;
    font-size: 0.88rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .workflow-grid,
  .install-grid,
  .feature-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }

  .showcase-grid {
    gap: 14px;
  }

  .showcase-card .card-copy {
    padding: 18px 18px 20px;
  }

  .showcase-card .card-copy::before {
    left: 18px;
  }

  .showcase-card .card-copy.compact {
    padding-top: 16px;
  }

  .showcase-card.featured .media-frame.wide {
    height: 220px;
  }

  .demo-card .media-frame {
    height: 220px;
  }

  .hero-points {
    gap: 10px;
    margin-bottom: 22px;
  }

  .hero-points li {
    padding-left: 24px;
    font-size: 0.96rem;
    line-height: 1.62;
  }

  .hero-points li::before {
    top: 9px;
    width: 10px;
    height: 10px;
    box-shadow: 0 0 0 4px rgba(25, 103, 210, 0.07);
  }

  .install-card {
    min-height: unset;
  }

  .install-card p {
    max-width: none;
  }

  .mode-card,
  .install-card,
  .feature-card,
  .download-card {
    padding: 18px;
  }

  .mode-index {
    margin-bottom: 14px;
    font-size: 0.8rem;
  }

  .install-head {
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
  }

  .install-card h3,
  .showcase-card h3,
  .mode-card h3,
  .feature-card h3,
  .download-card h3 {
    font-size: 1.04rem;
  }

  .install-kicker,
  .install-tags span,
  .download-hints span {
    font-size: 0.78rem;
  }

  .install-tags {
    gap: 7px;
    padding-top: 14px;
  }

  .hero-visual {
    display: grid;
    min-height: unset;
    gap: 12px;
  }

  .hero-stage {
    display: grid;
    min-height: unset;
    padding: 14px;
    gap: 12px;
  }

  .visual-orbit {
    display: none;
  }

  .hero-preview,
  .hero-specs {
    position: static;
    width: 100%;
    animation: none;
    transform: none;
  }

  .hero-preview-main .media-frame,
  .hero-preview-side .media-frame {
    aspect-ratio: 4 / 3;
  }

  .hero-preview-main,
  .hero-preview-side {
    width: 100%;
  }

  .hero-specs {
    gap: 8px;
    padding: 10px;
    right: auto;
    bottom: auto;
    left: auto;
  }

  .hero-specs span {
    min-height: 28px;
    padding: 0 10px;
    font-size: 0.78rem;
  }

  .preview-label {
    top: 12px;
    left: 12px;
    padding: 6px 10px;
    font-size: 0.72rem;
  }

  .download-header,
  .meta-list > span {
    flex-direction: column;
    align-items: flex-start;
  }

  .download-card {
    gap: 12px;
  }

  .download-version {
    min-height: 30px;
    padding: 0 10px;
    font-size: 0.88rem;
  }

  .status-banner {
    margin: 16px 0;
    padding: 14px 16px;
    font-size: 0.95rem;
  }

  .meta-list {
    padding: 13px 14px;
  }

  .meta-list > span {
    font-size: 0.9rem;
  }

  .meta-list b {
    text-align: left;
  }

  .download-note {
    margin-top: 14px;
    padding: 16px 18px;
  }

  .faq-list {
    padding: 8px 16px;
  }

  .faq-list details {
    padding: 15px 0;
  }

  .faq-list summary {
    font-size: 0.98rem;
    line-height: 1.5;
  }

  .workflow-preview-shell {
    margin-bottom: 18px;
  }

  .site-footer {
    margin-top: 14px;
    gap: 12px;
  }
}

@media (max-width: 560px) {
  .page-shell {
    padding: 12px 12px 26px;
  }

  .hero h1 {
    font-size: 1.58rem;
  }

  .section-heading h2 {
    font-size: 1.46rem;
  }

  .site-header {
    padding: 11px;
  }

  .brand small {
    display: none;
  }

  .header-actions .primary-button.small {
    max-width: 132px;
    padding: 0 10px;
    font-size: 0.84rem;
  }

  .showcase-card .card-copy,
  .mode-card,
  .install-card,
  .feature-card,
  .download-card {
    padding: 16px;
  }

  .showcase-card .card-copy::before {
    left: 16px;
  }

  .hero-stage {
    padding: 12px;
  }

  .hero-specs,
  .download-note,
  .status-banner {
    border-radius: 14px;
  }

  .faq-list {
    padding: 6px 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}