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

html,
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--bg-body);
  color: var(--fg-main);
  scroll-behavior: smooth;
}

:root {
  --bg-body: #f4f5fa;
  --bg-elevated: #ffffff;
  --bg-elevated-soft: #f1f3f9;
  --fg-main: #111827;
  --fg-subtle: #6b7280;
  --accent: #2563eb;
  --accent-soft: #e2ebff;
  --accent-strong: #1d4ed8;
  --border-soft: rgba(15, 23, 42, 0.06);
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.08);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 999px;
  --header-height: 64px;
  --transition-fast: 0.18s ease-out;
  --transition-med: 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
}

body.theme-dark {
  --bg-body: #050816;
  --bg-elevated: #020617;
  --bg-elevated-soft: #020617;
  --fg-main: #e5e7eb;
  --fg-subtle: #9ca3af;
  --accent: #3b82f6;
  --accent-soft: rgba(56, 189, 248, 0.12);
  --accent-strong: #2563eb;
  --border-soft: rgba(148, 163, 184, 0.18);
  --shadow-soft: 0 24px 60px rgba(15, 23, 42, 0.55);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-height);
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 42, 0.82),
    rgba(15, 23, 42, 0.78)
  );
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

body.theme-light .site-header {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: rgba(148, 163, 184, 0.16);
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 14px;
  background: radial-gradient(circle at 0% 0%, #4f46e5, #0ea5e9);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  box-shadow: 0 10px 25px rgba(79, 70, 229, 0.45);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-title {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.logo-subtitle {
  font-size: 11px;
  color: var(--fg-subtle);
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
}

.nav-link {
  position: relative;
  text-decoration: none;
  color: var(--fg-subtle);
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(to right, #4f46e5, #0ea5e9);
  transition: width var(--transition-med);
}

.nav-link:hover {
  color: var(--fg-main);
}

body.theme-dark .nav-link:hover {
  color: #f9fafb;
}

.nav-link.active,
.nav-link:focus-visible {
  color: var(--fg-main);
}

.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  position: relative;
  width: 46px;
  height: 26px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: linear-gradient(135deg, #0f172a, #020617);
  padding: 2px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  color: #f9fafb;
  overflow: hidden;
}

body.theme-light .theme-toggle {
  background: linear-gradient(135deg, #e5f0ff, #f9fafb);
}

.theme-icon {
  font-size: 13px;
  width: 18px;
  text-align: center;
  opacity: 0.4;
  transition: opacity var(--transition-fast);
}

.theme-toggle::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: radial-gradient(circle at 0% 0%, #4f46e5, #0ea5e9);
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.5);
  transition: transform var(--transition-med);
}

body.theme-light .theme-toggle::after {
  transform: translateX(18px);
}

body.theme-light .theme-icon.sun {
  opacity: 1;
  color: #f59e0b; /* 暖黄色，白天模式下更清晰 */
  text-shadow: 0 0 4px rgba(251, 191, 36, 0.65);
}

body.theme-dark .theme-icon.moon {
  opacity: 1;
}

main {
  padding: 32px 0 64px;
}

.hero {
  margin-top: 24px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 28px;
  padding: 22px 26px;
  border-radius: 28px;
  background: linear-gradient(135deg, #0b1220, #020617);
  color: #e5f0ff;
  box-shadow: 0 24px 58px rgba(15, 23, 42, 0.6);
  position: relative;
  overflow: hidden;
}

.hero-inner::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.35), transparent 58%),
    radial-gradient(circle at 80% 20%, rgba(244, 114, 182, 0.38), transparent 55%);
  opacity: 0.8;
  mix-blend-mode: screen;
  pointer-events: none;
}

.hero-left,
.hero-right {
  position: relative;
  z-index: 1;
}

.hero-right {
  border-radius: 0;
  padding: 0;
  border: none;
  background: transparent;
  box-shadow: none;
  display: flex;
  flex-direction: column;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  background: rgba(15, 23, 42, 0.75);
  color: #e5e7eb;
  border: 1px solid rgba(148, 163, 184, 0.6);
  margin-bottom: 12px;
}

body.theme-light .hero-badge {
  background: rgba(248, 250, 252, 0.85);
  color: #0f172a;
}

.hero-title {
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  column-gap: 10px;
}

.hero-title-sub {
  font-size: 18px;
  font-weight: 400;
  opacity: 0.9;
}

.hero-desc {
  margin-top: 12px;
  font-size: 14px;
  max-width: 520px;
  color: rgba(226, 232, 240, 0.9);
}

.hero-features {
  list-style: none;
  margin-top: 18px;
  display: grid;
  gap: 6px;
  font-size: 13px;
}

.hero-features li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-features li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #a5b4fc;
}

.hero-actions {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-med),
    color var(--transition-med),
    box-shadow var(--transition-med),
    transform 0.16s ease-out;
}

.btn-icon {
  margin-right: 6px;
  font-size: 15px;
}

.btn-subtext {
  margin-left: 4px;
  font-size: 11px;
  opacity: 0.9;
}

.btn-main {
  display: inline-flex;
  align-items: center;
}

.hero .btn-main {
  justify-content: center;
}

/* Banner 中仍按行内排列图标和文字，但只在 hero 区使用 btn-main 包裹 */
.hero .btn-main .btn-icon {
  position: static;
  left: auto;
  margin-right: 6px;
}

/* Banner 区主下载按钮：平台名 + 换行版本号（不改变按钮整体布局） */
.hero .btn-subtext {
  margin-left: 0;
  margin-top: 2px;
  font-size: 11px;
  opacity: 0.85;
  display: block;
  width: 100%;
  text-align: center;
}

.hero .btn {
  flex-wrap: wrap;
}
/* 可更改立即体验按钮的颜色 */
.btn-primary {
  background: linear-gradient(120deg, #f75555, #ff7777);
  color: #fff5f5;
  box-shadow: 0 18px 34px rgba(248, 113, 137, 0.6);
  font-weight: 600;
  letter-spacing: 0.01em;
}

/* Banner 主下载按钮（Windows）：紧凑尺寸，带描边 */
.hero .btn-primary {
  padding-inline: 18px;
  padding-block: 8px;
  font-size: 18px;
  font-weight: 400;
  min-width: 170px;
  box-shadow: none;
  border-color: #ff9c9c;
  transition: transform 0.22s ease-out,
    box-shadow 0.26s ease-out,
    background-color 0.26s ease-out,
    color 0.26s ease-out;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 34px rgba(248, 113, 137, 0.6);
}

.hero .btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 14px 30px rgba(248, 113, 137, 0.55);
}

.product-hero .btn-primary {
  box-shadow: none;
  font-weight: 400;
  transition: transform 0.22s ease-out,
    box-shadow 0.26s ease-out,
    background-color 0.26s ease-out,
    color 0.26s ease-out;
}

.product-hero .btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 14px 30px rgba(248, 113, 137, 0.55);
}

.btn-ghost {
  background: rgba(15, 23, 42, 0.5);
  color: #e5e7eb;
  border-color: rgba(148, 163, 184, 0.7);
}

body.theme-light .btn-ghost {
  background: rgba(15, 23, 42, 0.08);
  color: #0f172a;
}

.btn-ghost:hover {
  background: rgba(15, 23, 42, 0.8);
  color: #e5e7eb;
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.7);
}

body.theme-light .btn-ghost:hover {
  background: rgba(15, 23, 42, 0.16);
}

/* Banner 区幽灵按钮始终采用深色底 + 浅色字，避免在深色背景上看不清 */
.hero .btn-ghost,
.hero .btn-ghost:visited,
body.theme-light .hero .btn-ghost,
body.theme-light .hero .btn-ghost:visited {
  background: linear-gradient(135deg, #047857, #22c55e) !important;
  background-color: #047857 !important; /* 确保不是透明底色 */
  color: #ecfdf5;
  border-color:#22c55e;
}

.hero .btn-ghost:hover {
  /* 保持与默认相同的绿色渐变，不额外提亮，只增强动画 */
  background: linear-gradient(135deg, #047857, #22c55e);
  color: #f0fdf4;
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 20px 42px rgba(4, 120, 87, 0.7);
}

/* SFX Manager 详情页 Banner 中的 MacOS 按钮，复用与首页相同的绿色样式 */
.product-hero .btn-ghost,
.product-hero .btn-ghost:visited,
body.theme-light .product-hero .btn-ghost,
body.theme-light .product-hero .btn-ghost:visited {
  background: linear-gradient(135deg, #047857, #22c55e) !important;
  background-color: #047857 !important;
  color: #ecfdf5;
  border-color: #22c55e;
  font-weight: 400;
  box-shadow: none;
  transition: transform 0.22s ease-out,
    box-shadow 0.26s ease-out,
    background-color 0.26s ease-out,
    color 0.26s ease-out;
}

.product-hero .btn-ghost:hover {
  background: linear-gradient(135deg, #047857, #22c55e);
  color: #f0fdf4;
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 22px 46px rgba(4, 120, 87, 0.7) !important;
}

/* Banner 内 MacOS 下载按钮：尺寸与 Windows 按钮统一 */
.hero .btn-ghost {
  padding-inline: 18px;
  padding-block: 8px;
  font-size: 18px;
  font-weight: 400;
  min-width: 170px;
  transition: transform 0.22s ease-out,
    box-shadow 0.26s ease-out,
    background-color 0.26s ease-out,
    color 0.26s ease-out;
}

/* Banner 中两个主下载按钮固定宽度，保持完全等宽 */
.hero .btn-primary,
.hero .btn-ghost {
  width: 210px; /* 如需更紧凑可调小，例如 200 */
}

.btn-accent {
  background: linear-gradient(to right, #f97316, #ea580c);
  color: #fff7ed;
  box-shadow: 0 14px 28px rgba(248, 113, 22, 0.55);
}

.btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 38px rgba(248, 113, 22, 0.9);
}

.btn-outline {
  background: transparent;
  border-color: rgba(148, 163, 184, 0.6);
  color: var(--fg-main);
}

.btn-outline:hover {
  background: rgba(148, 163, 184, 0.08);
}

.hero-preview {
  position: relative;
  border-radius: 20px;
  background: radial-gradient(circle at 0% 0%, #111827, #020617);
  border: 1px solid rgba(30, 64, 175, 0.7);
  box-shadow: 0 20px 46px rgba(15, 23, 42, 0.85);
  overflow: hidden;
  margin-left: 12px;
  margin-bottom: 14px;
}

.hero-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: linear-gradient(to right, rgba(15, 23, 42, 0.82), rgba(30, 64, 175, 0.88));
}

.hero-preview-dots {
  display: flex;
  gap: 6px;
}

.hero-preview-dots span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.65);
}

.hero-preview-dots span:nth-child(1) {
  background: #f97373;
}

.hero-preview-dots span:nth-child(2) {
  background: #fde68a;
}

.hero-preview-dots span:nth-child(3) {
  background: #4ade80;
}

.hero-preview-title {
  font-size: 12px;
  color: #e5e7eb;
  opacity: 0.9;
}

.hero-preview-body {
  padding: 10px 10px 12px;
}

.hero-preview-image {
  border-radius: 16px;
  background: radial-gradient(circle at 0% 0%, #4f46e5, #2563eb);
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
}

.hero-preview-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  font-size: 13px;
  color: rgba(249, 250, 251, 0.9);
  text-align: center;
}

.hero-highlights {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.hero-highlights-left {
  margin-top: 14px;
  margin-left: 0;
  max-width: 520px;
}

.hero-highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 12px;
  /* 改为半透明毛玻璃风格，降低饱和度和亮度 */
  background: linear-gradient(
    135deg,
    rgba(15, 23, 42, 0.65),
    rgba(31, 64, 125, 0.65)
  );
  border: 1px solid rgba(148, 163, 184, 0.55);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(14px);
  cursor: pointer;
  transition: transform 0.18s ease-out, box-shadow 0.18s ease-out,
    background 0.2s ease-out, border-color 0.2s ease-out;
}

.hero-highlight-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.6);
  /* 在原有暗色基础上略微提亮，而不是跳到鲜亮蓝色 */
  background: linear-gradient(
    135deg,
    rgba(21, 32, 60, 0.78),
    rgba(40, 70, 135, 0.78)
  );
  border-color: rgba(148, 163, 184, 0.75);
}

.hero-highlight-icon {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: radial-gradient(circle at 0% 0%, #4f46e5, #0ea5e9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.hero-highlight-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0; /* 允许在 flex 布局中收缩，从而让省略号生效 */
}

.hero-highlight-title {
  font-size: 12px;
  color: #e5e7eb;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hero-highlight-desc {
  font-size: 11px;
  color: rgba(226, 232, 240, 0.9);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.section {
  padding: 40px 0;
}

.section-alt {
  background-color: var(--bg-elevated-soft);
}

.section-header {
  text-align: center;
  margin-bottom: 24px;
}

.section-title {
  font-size: 22px;
  margin-bottom: 6px;
}

.section-subtitle {
  font-size: 13px;
  color: var(--fg-subtle);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

.card {
  background: var(--bg-elevated);
  border-radius: 18px;
  border: 1px solid var(--border-soft);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 160px;
  transform-origin: center bottom;
  cursor: pointer;
  transition: transform 0.22s ease-out,
    box-shadow 0.26s ease-out,
    border-color 0.22s ease-out,
    background-color 0.22s ease-out;
}

/* 让整张卡片可点击：内部链接充满整个卡片区域 */
.card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.card-link:focus-visible {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

/* 卡片 hover 动画：轻微上浮 + 放大 + 阴影增强 */
.card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.14);
  border-color: rgba(148, 163, 184, 0.5);
}

.card-thumb {
  width: 100%;
  aspect-ratio: 16 / 9; /* 统一 16:9 比例，方便放截图 */
  transition: transform 0.22s ease-out,
    filter 0.22s ease-out;
}

.placeholder-thumb {
  background: radial-gradient(circle at 0 0, #3730a3, #1d4ed8);
}

/* 卡片 hover 时，顶部图片区域也略微缩放和提亮，增强交互感 */
.card:hover .card-thumb {
  transform: translateY(-3px) scale(1.03);
  /* 只做位移和轻微提亮，不再单独加阴影，避免对白色文字区域造成阴影带 */
  filter: brightness(1.03);
}

.card-body {
  padding: 14px 14px 16px;
}

.card-title {
  font-size: 15px;
  margin-bottom: 6px;
}

.card-desc {
  font-size: 13px;
  color: var(--fg-subtle);
  margin-bottom: 10px;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.section-actions {
  margin-top: 22px;
  text-align: center;
}

.site-footer {
  padding: 20px 0 24px;
  background: #020617;
  color: #9ca3af;
  border-top: 1px solid rgba(148, 163, 184, 0.35);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-logo {
  width: 32px;
  height: 32px;
  border-radius: 12px;
  background: radial-gradient(circle at 0% 0%, #4f46e5, #0ea5e9);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f9fafb;
  font-weight: 700;
}

.footer-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 12px;
}

.footer-sub {
  color: #6b7280;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-right {
  font-size: 13px;
}

.footer-link {
  color: #e5e7eb;
  text-decoration: none;
}

.footer-link:hover {
  text-decoration: underline;
}

.reveal {
  opacity: 0;
  transform: translateY(18px) scale(0.98);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* 避免 .reveal.visible 覆盖卡片 hover 的 transform，保证 hover 有上移+放大效果 */
.card.reveal.visible:hover {
  transform: translateY(-8px) scale(1.03);
}

/* =========================
   SFX Manager 详情页样式
   ========================= */

.product-hero {
  padding: 40px 0 60px;
  background: radial-gradient(circle at 0% 0%, #020617, #020617);
  color: #e5f0ff;
}

body.theme-light .product-hero {
  background: radial-gradient(circle at 0% 0%, #0b1120, #020617);
}

.product-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.product-hero-main {
  position: relative;
  z-index: 1;
}

.product-hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.6);
  margin-bottom: 12px;
}

.product-hero-title {
  font-size: 30px;
  line-height: 1.25;
}

.product-hero-subtitle {
  margin-top: 10px;
  font-size: 14px;
  max-width: 540px;
  color: rgba(226, 232, 240, 0.9);
}

.product-hero-points {
  margin-top: 14px;
  padding-left: 18px;
  font-size: 13px;
  color: rgba(226, 232, 240, 0.92);
}

.product-hero-points li + li {
  margin-top: 4px;
}

.product-hero-actions {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.product-hero-media {
  position: relative;
}

.product-media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.product-media-item {
  border-radius: 14px;
  background: radial-gradient(circle at 0 0, #1d4ed8, #020617);
  padding: 10px;
  font-size: 12px;
  color: rgba(226, 232, 240, 0.92);
  display: flex;
  align-items: flex-end;
}

.product-media-hint {
  margin-top: 8px;
  font-size: 11px;
  color: rgba(148, 163, 184, 0.9);
}

.product-section {
  padding: 40px 0;
}

.product-section-alt {
  background-color: var(--bg-elevated-soft);
}

.product-section-header {
  text-align: center;
  margin-bottom: 24px;
}

.product-section-title {
  font-size: 22px;
  margin-bottom: 6px;
}

.product-section-subtitle {
  font-size: 13px;
  color: var(--fg-subtle);
}

.product-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.product-feature-card {
  background: var(--bg-elevated);
  border-radius: 16px;
  border: 1px solid var(--border-soft);
  padding: 16px 16px 18px;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.06);
}

.product-feature-card h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.product-feature-card p {
  font-size: 13px;
  color: var(--fg-subtle);
}

.install-steps {
  display: grid;
  gap: 14px;
}

.install-step {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: var(--bg-elevated);
  border-radius: 16px;
  padding: 14px 16px;
  border: 1px solid var(--border-soft);
}

.install-step-badge {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  background: linear-gradient(135deg, #4f46e5, #0ea5e9);
  color: #f9fafb;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
}

.install-step-content h3 {
  font-size: 14px;
  margin-bottom: 4px;
}

.install-step-content p {
  font-size: 13px;
  color: var(--fg-subtle);
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-item {
  border-radius: 16px;
  border: 1px solid var(--border-soft);
  background: var(--bg-elevated);
  padding: 10px 14px;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  font-size: 14px;
}

.faq-item[open] summary {
  font-weight: 600;
}

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

.faq-body {
  margin-top: 6px;
  font-size: 13px;
  color: var(--fg-subtle);
}

.changelog-timeline {
  display: grid;
  gap: 12px;
}

.changelog-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.changelog-version {
  min-width: 64px;
  padding: 4px 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, #1d4ed8, #22c55e);
  font-size: 12px;
  color: #f9fafb;
  text-align: center;
}

.changelog-content {
  flex: 1;
  border-radius: 16px;
  border: 1px solid var(--border-soft);
  background: var(--bg-elevated);
  padding: 10px 14px;
}

.changelog-date {
  font-size: 12px;
  color: var(--fg-subtle);
  margin-bottom: 4px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-highlights {
    grid-template-columns: minmax(0, 1fr);
  }

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

@media (max-width: 640px) {
  .nav {
    display: none;
  }

  .hero-inner {
    padding: 20px 18px;
  }

  .card-grid,
  .card-grid-small {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}