/* ============================================================
   星空动漫 - 官网样式表
   Domain: xkdongman.cn
   Theme: 星空蓝紫 / Starry Night
   ============================================================ */

/* ---------- CSS Reset & Variables ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* 主题色 - 星空蓝紫 */
  --color-primary: #4f6bff;
  --color-primary-light: #6b83ff;
  --color-primary-dark: #3a52d4;
  --color-accent: #00d4ff;
  --color-accent-glow: rgba(0, 212, 255, 0.4);
  --color-purple: #9b59b6;
  --color-pink: #e879f9;

  /* 中性色 */
  --color-bg: #070b1e;
  --color-bg-secondary: #0f1535;
  --color-bg-card: rgba(20, 27, 65, 0.7);
  --color-bg-card-hover: rgba(30, 40, 90, 0.85);
  --color-border: rgba(100, 120, 200, 0.2);
  --color-border-light: rgba(150, 170, 255, 0.15);

  /* 文字色 */
  --color-text: #e8ecff;
  --color-text-secondary: #a8b0d4;
  --color-text-muted: #6b7399;
  --color-text-inverse: #ffffff;

  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #4f6bff 0%, #9b59b6 100%);
  --gradient-accent: linear-gradient(135deg, #00d4ff 0%, #4f6bff 100%);
  --gradient-hero: linear-gradient(
    180deg,
    rgba(7, 11, 30, 0.3) 0%,
    rgba(7, 11, 30, 0.6) 50%,
    rgba(7, 11, 30, 0.95) 100%
  );
  --gradient-text: linear-gradient(135deg, #00d4ff 0%, #4f6bff 50%, #9b59b6 100%);

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(79, 107, 255, 0.4);
  --shadow-glow-accent: 0 0 40px rgba(0, 212, 255, 0.35);

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;

  /* 间距 */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* 容器 */
  --container-max: 1200px;
  --container-padding: 1.5rem;

  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* 导航高度 */
  --nav-height: 72px;
}

/* ---------- Base ---------- */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent);
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  max-width: 640px;
  margin: 0 auto var(--space-2xl);
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 50px rgba(79, 107, 255, 0.6);
  color: var(--color-text-inverse);
}

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

.btn-accent {
  background: var(--gradient-accent);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-glow-accent);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 50px rgba(0, 212, 255, 0.5);
  color: var(--color-text-inverse);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-lg {
  padding: 1.1rem 2.5rem;
  font-size: var(--font-size-lg);
}

.btn .btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition-base);
  background: rgba(7, 11, 30, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(7, 11, 30, 0.92);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-text);
}

.logo-img {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  box-shadow: 0 0 12px rgba(79, 107, 255, 0.5);
}

.logo-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: width var(--transition-base);
  border-radius: 2px;
}

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

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url("img/hero-bg.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: 1;
}

/* 星空粒子层 */
.hero-stars {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.hero-stars .star {
  position: absolute;
  width: 2px;
  height: 2px;
  background: #fff;
  border-radius: 50%;
  animation: twinkle 3s infinite ease-in-out;
}

@keyframes twinkle {
  0%,
  100% {
    opacity: 0.2;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.5);
  }
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 800px;
  padding: var(--space-lg);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: rgba(79, 107, 255, 0.15);
  border: 1px solid rgba(79, 107, 255, 0.4);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  backdrop-filter: blur(10px);
  animation: fadeInUp 0.8s ease;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.6);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(0, 212, 255, 0);
  }
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: var(--space-md);
  letter-spacing: -0.03em;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-title .highlight {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
  line-height: 1.8;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-stat {
  text-align: center;
}

.hero-stat-number {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-accent);
}

.hero-stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 向下滚动提示 */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  animation: bounce 2s infinite;
}

.scroll-indicator .mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--color-text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator .mouse::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 2px;
  animation: scrollWheel 1.5s infinite;
}

@keyframes scrollWheel {
  0% {
    opacity: 1;
    transform: translate(-50%, 0);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, 12px);
  }
}

@keyframes bounce {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-8px);
  }
}

/* ---------- Features Section ---------- */
.features {
  background: var(--color-bg);
  position: relative;
}

.features::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--color-border),
    transparent
  );
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-6px);
  background: var(--color-bg-card-hover);
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.75rem;
  background: rgba(79, 107, 255, 0.15);
  border: 1px solid rgba(79, 107, 255, 0.3);
}

.feature-card:nth-child(2) .feature-icon {
  background: rgba(155, 89, 182, 0.15);
  border-color: rgba(155, 89, 182, 0.3);
}

.feature-card:nth-child(3) .feature-icon {
  background: rgba(0, 212, 255, 0.15);
  border-color: rgba(0, 212, 255, 0.3);
}

.feature-card:nth-child(4) .feature-icon {
  background: rgba(232, 121, 249, 0.15);
  border-color: rgba(232, 121, 249, 0.3);
}

.feature-card:nth-child(5) .feature-icon {
  background: rgba(79, 107, 255, 0.15);
  border-color: rgba(79, 107, 255, 0.3);
}

.feature-card:nth-child(6) .feature-icon {
  background: rgba(155, 89, 182, 0.15);
  border-color: rgba(155, 89, 182, 0.3);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.feature-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ---------- Showcase Section ---------- */
.showcase {
  background: var(--color-bg-secondary);
  position: relative;
  overflow: hidden;
}

.showcase-bg {
  position: absolute;
  inset: 0;
  background-image: url("img/showcase-bg.webp");
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  z-index: 0;
}

.showcase-inner {
  position: relative;
  z-index: 1;
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.showcase-image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.showcase-image img {
  width: 100%;
  height: auto;
  display: block;
}

.showcase-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(79, 107, 255, 0.1),
    transparent 50%
  );
  pointer-events: none;
}

.showcase-content h3 {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.showcase-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.8;
}

.showcase-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.showcase-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.showcase-list .check-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.75rem;
  margin-top: 2px;
}

/* ---------- Content / Hot Anime Section ---------- */
.hot-anime {
  background: var(--color-bg);
}

.anime-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.anime-tab {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.anime-tab:hover {
  color: var(--color-text);
  border-color: var(--color-primary);
}

.anime-tab.active {
  background: var(--gradient-primary);
  color: var(--color-text-inverse);
  border-color: transparent;
}

.anime-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.anime-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
}

.anime-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
}

.anime-cover {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--color-bg-secondary);
}

.anime-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.anime-card:hover .anime-cover img {
  transform: scale(1.08);
}

.anime-badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.25rem 0.625rem;
  background: rgba(7, 11, 30, 0.8);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: var(--color-accent);
  font-weight: 600;
}

.anime-rank {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: #fff;
}

.anime-info {
  padding: 0.75rem;
}

.anime-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.anime-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.anime-views {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* ---------- Download Section ---------- */
.download {
  position: relative;
  text-align: center;
  overflow: hidden;
}

.download-bg {
  position: absolute;
  inset: 0;
  background-image: url("img/download-bg.webp");
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.download-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(7, 11, 30, 0.85) 0%,
    rgba(7, 11, 30, 0.75) 50%,
    rgba(7, 11, 30, 0.95) 100%
  );
  z-index: 1;
}

.download-inner {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
}

.download-icon {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-lg);
  margin: 0 auto var(--space-md);
  box-shadow: var(--shadow-glow);
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.download-title {
  font-size: var(--font-size-4xl);
  font-weight: 900;
  margin-bottom: var(--space-sm);
}

.download-desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

.download-btn-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.download-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.download-meta-item {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.download-meta-item .dot {
  width: 4px;
  height: 4px;
  background: var(--color-text-muted);
  border-radius: 50%;
}

/* ---------- FAQ Section ---------- */
.faq {
  background: var(--color-bg-secondary);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--color-primary);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: rgba(255, 255, 255, 0.03);
}

.faq-arrow {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
  color: var(--color-text-muted);
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
  color: var(--color-accent);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 1.5rem 1.25rem;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.8;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-brand .logo {
  margin-bottom: var(--space-sm);
}

.footer-brand p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h4 {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.footer-bottom a {
  color: var(--color-text-muted);
}

.footer-bottom a:hover {
  color: var(--color-accent);
}

/* ---------- Scroll Reveal Animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 {
  transition-delay: 0.1s;
}
.reveal-delay-2 {
  transition-delay: 0.2s;
}
.reveal-delay-3 {
  transition-delay: 0.3s;
}
.reveal-delay-4 {
  transition-delay: 0.4s;
}

/* ---------- Back to Top ---------- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-glow);
  border: none;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 40px rgba(79, 107, 255, 0.7);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.5rem;
    --space-3xl: 4rem;
    --space-2xl: 3rem;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(7, 11, 30, 0.98);
    backdrop-filter: blur(20px);
    padding: var(--space-lg);
    gap: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    transition: transform var(--transition-base);
    z-index: 999;
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-cta .btn {
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-sm);
  }

  .hero-title {
    font-size: var(--font-size-4xl);
  }

  .hero-stats {
    gap: var(--space-md);
  }

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

  .showcase-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .showcase-grid.reverse .showcase-image {
    order: -1;
  }

  .anime-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 42px;
    height: 42px;
  }

  .scroll-indicator {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .download-btn-wrapper {
    flex-direction: column;
    width: 100%;
  }

  .download-btn-wrapper .btn {
    width: 100%;
  }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}