/* ========================================
   MiraiMind Official Website
   Design System & Styles
   ======================================== */

/* === Design Variables === */
:root {
  /* Primary Colors */
  --color-primary: #09C3FF;
  --color-primary-dark: #07A8DD;
  --color-primary-light: #5DD4FF;
  --color-accent: #6d93FE;
  --color-gradient: linear-gradient(135deg, #09C3FF 0%, #6d93FE 100%);
  --color-gradient-soft: linear-gradient(135deg, rgba(9,195,255,0.08) 0%, rgba(109,147,254,0.08) 100%);

  /* Background & Surface */
  --color-bg: #f5f5f5;
  --color-bg-card: #ffffff;
  --color-bg-alt: #fafafa;
  --color-bg-dark: #1a1a2e;

  /* Text Colors */
  --color-text: #1a1a2e;
  --color-text-secondary: #6b7280;
  --color-text-light: #9ca3af;
  --color-text-white: #ffffff;

  /* Border */
  --color-border: #e5e7eb;
  --color-border-light: #f0f0f0;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-primary: 0 8px 24px rgba(9,195,255,0.25);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;

  /* Spacing */
  --space-section: 80px;
  --container-max: 1200px;
  --container-narrow: 800px;

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

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--color-primary-dark);
}

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

ul, ol {
  list-style: none;
}

/* === Container === */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 24px;
}

/* === Typography === */
.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
}

/* === Header / Navigation === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

.nav-logo img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--color-primary);
}

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

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

.nav-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  background: var(--color-gradient);
  color: var(--color-text-white);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  transition: all var(--transition-base);
}

.nav-download:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-primary);
  color: var(--color-text-white);
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(9,195,255,0.35);
  color: var(--color-text-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-text-white);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.1rem;
}

/* === Hero Section === */
.hero {
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(9,195,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -200px;
  left: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(109,147,254,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 540px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: var(--color-gradient-soft);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

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

.hero-desc {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-hint {
  margin-top: 18px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  opacity: 0.8;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* === Phone Mockup === */
.phone-mockup {
  position: relative;
  width: 280px;
  padding: 10px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 36px;
  box-shadow: var(--shadow-lg);
}

.phone-mockup::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 5px;
  background: #e0e0e0;
  border-radius: 0 0 8px 8px;
  z-index: 2;
}

.phone-mockup img {
  width: 100%;
  aspect-ratio: 9/16;
  object-fit: cover;
  border-radius: 28px;
  display: block;
}

.phone-mockup-lg {
  width: 300px;
}

/* === Features Section === */
.features {
  padding: var(--space-section) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border-light);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-gradient-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.feature-icon i,
.download-card .icon i,
.download-feature .icon i {
  color: var(--color-primary);
}

/* === Character Gallery === */
.gallery {
  padding: var(--space-section) 0;
  background: var(--color-bg-card);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 9/16;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

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

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: linear-gradient(transparent, rgba(0,0,0,0.6));
  color: white;
  font-size: 0.85rem;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

/* === Screenshots Showcase === */
.showcase {
  padding: var(--space-section) 0;
}

.showcase-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
  margin-top: 48px;
}

.showcase-item {
  text-align: center;
}

.showcase-item .phone-mockup {
  width: 220px;
  margin: 0 auto;
}

.showcase-label {
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* === Reviews Section === */
.reviews {
  padding: var(--space-section) 0;
  background: var(--color-bg);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.review-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  display: flex;
  flex-direction: column;
}

.review-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.review-card__header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.review-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  object-fit: cover;
  flex-shrink: 0;
}

.review-card__info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.review-card__name {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
}

.review-card__rating {
  display: flex;
  gap: 2px;
  color: #f5a623;
  font-size: 0.85rem;
}

.review-card__rating i {
  font-size: inherit;
}

.review-card__text {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  flex: 1;
  margin-bottom: 14px;
}

.review-card__time {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* === FAQ Section === */
.faq {
  padding: var(--space-section) 0;
  background: var(--color-bg-card);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border-light);
  padding: 0;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 0;
  background: none;
  border: none;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-question .icon {
  font-size: 1.5rem;
  color: var(--color-primary);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq-item.open .faq-question .icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-base);
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding-bottom: 20px;
}

/* === CTA Section === */
.cta {
  padding: var(--space-section) 0;
}

.cta-box {
  background: var(--color-gradient);
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -10%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.cta-title {
  font-size: 2rem;
  font-weight: 800;
  color: white;
  margin-bottom: 12px;
  position: relative;
}

.cta-desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 32px;
  position: relative;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

.cta-actions .btn {
  background: white;
  color: var(--color-primary);
}

.cta-actions .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* === Footer === */
.site-footer {
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border-light);
  padding: 48px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
}

.footer-logo img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  max-width: 320px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.footer-col ul li a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border-light);
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-light);
}

/* === Legal Pages === */
.legal-page {
  padding: 100px 0 60px;
}

.legal-header {
  text-align: center;
  margin-bottom: 48px;
}

.legal-header h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.legal-header .update-date {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.legal-content {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-sm);
}

.legal-content h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 32px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-gradient);
  display: inline-block;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.legal-content ul {
  margin: 12px 0 16px 20px;
}

.legal-content ul li {
  color: var(--color-text-secondary);
  line-height: 1.8;
  list-style: disc;
  margin-bottom: 6px;
}

.legal-content strong {
  color: var(--color-text);
}

/* === Animations === */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* === Floating Animation === */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.float-animation {
  animation: float 4s ease-in-out infinite;
}

/* === Download Page === */
.download-page {
  padding: 120px 0 80px;
}

.download-hero {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.download-hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.download-hero p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.download-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 640px;
  margin: 0 auto;
}

.download-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.download-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.download-card .icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.download-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.download-card p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.download-features {
  max-width: 720px;
  margin: 56px auto 0;
  text-align: center;
}

.download-features h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 32px;
}

.download-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.download-feature {
  text-align: center;
}

.download-feature .icon {
  font-size: 2rem;
  margin-bottom: 10px;
}

.download-feature h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.download-feature p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.download-qr {
  text-align: center;
  margin-top: 56px;
  padding: 32px;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.download-qr h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.qr-placeholder {
  width: 200px;
  height: 200px;
  margin: 0 auto;
  background: var(--color-gradient-soft);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--color-primary-light);
}

.qr-placeholder span {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-align: center;
  padding: 20px;
}

/* === Responsive === */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.6rem;
  }

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

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: white;
    padding: 20px;
    gap: 16px;
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-content {
    max-width: 100%;
    margin: 0 auto;
  }

  .hero-badge {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .phone-mockup {
    width: 240px;
  }

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

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

  .section-title {
    font-size: 1.6rem;
  }

  .cta-box {
    padding: 40px 24px;
  }

  .cta-title {
    font-size: 1.5rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .legal-content {
    padding: 24px;
  }

  .showcase-grid {
    gap: 24px;
  }

  .showcase-item .phone-mockup {
    width: 180px;
  }

  .download-options {
    grid-template-columns: 1fr;
  }

  .download-hero h1 {
    font-size: 1.8rem;
  }

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

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

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.8rem;
  }

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

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

  .btn-lg {
    padding: 14px 24px;
    font-size: 1rem;
  }
}

/* === 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;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }
}

/* === 举报反馈悬浮按钮 === */
.feedback-fab {
  position: fixed;
  right: 24px;
  bottom: 32px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  background: #2770fa;
  color: #fff;
  font-size: 0.9rem;
  border-radius: 28px;
  box-shadow: 0 4px 16px rgba(39, 112, 250, 0.35);
  transition: background 0.25s, box-shadow 0.25s, transform 0.25s;
}

.feedback-fab:hover {
  background: #1f63e0;
  box-shadow: 0 6px 20px rgba(39, 112, 250, 0.5);
  transform: translateY(-2px);
}

.feedback-fab i {
  font-size: 1.1rem;
}

@media (max-width: 640px) {
  .feedback-fab {
    right: 16px;
    bottom: 20px;
    padding: 8px 14px;
    font-size: 0.82rem;
  }
}