```css
/* ===== CSS Variables & Theme ===== */
:root {
  --primary: #e94560;
  --primary-dark: #c73652;
  --primary-light: #ff6b7a;
  --secondary: #0f3460;
  --accent: #533483;
  --bg: #f8f9fc;
  --bg-card: rgba(255, 255, 255, 0.75);
  --bg-glass: rgba(255, 255, 255, 0.55);
  --text: #1a1a2e;
  --text-muted: #5a5a7a;
  --border: rgba(26, 26, 46, 0.08);
  --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.06);
  --shadow-md: 0 4px 20px rgba(26, 26, 46, 0.08);
  --shadow-lg: 0 8px 40px rgba(26, 26, 46, 0.12);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --blur: blur(20px) saturate(180%);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --nav-h: 72px;
  --section-pad: 80px 0;
  --gradient-banner: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  --gradient-accent: linear-gradient(135deg, #e94560, #ff6b7a);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.9), rgba(255,255,255,0.5));
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

[data-theme="dark"] {
  --bg: #12121e;
  --bg-card: rgba(30, 30, 50, 0.75);
  --bg-glass: rgba(30, 30, 50, 0.55);
  --text: #f0f0f5;
  --text-muted: #a0a0c0;
  --border: rgba(255, 255, 255, 0.08);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --gradient-card: linear-gradient(145deg, rgba(40, 40, 65, 0.9), rgba(30, 30, 50, 0.5));
  --gradient-banner: linear-gradient(135deg, #0d0d1a 0%, #1a1a2e 50%, #0f3460 100%);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

ul, ol {
  list-style-position: inside;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 20px;
  border: 2px solid var(--bg);
}

::selection {
  background: var(--primary);
  color: #fff;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.5em;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  background: linear-gradient(135deg, var(--primary), #ff9a9e);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.3em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  position: relative;
  padding-bottom: 0.5em;
  margin-bottom: 1em;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--gradient-accent);
  border-radius: 4px;
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--text);
}

p {
  margin-bottom: 1em;
  color: var(--text-muted);
}

address {
  font-style: normal;
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 1.5rem 0;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

address p {
  margin-bottom: 0.5rem;
}

address p:last-child {
  margin-bottom: 0;
}

/* ===== Header & Navigation ===== */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.brand-logo:hover {
  transform: scale(1.05);
}

.brand-logo svg {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 4px 8px rgba(233, 69, 96, 0.3));
}

.nav-container > ul {
  display: flex;
  gap: 4px;
  list-style: none;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-container > ul > li {
  position: relative;
}

.nav-container > ul > li > a {
  display: block;
  padding: 10px 16px;
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: 50px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.nav-container > ul > li > a::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
  border-radius: 50px;
}

.nav-container > ul > li > a:hover {
  color: #fff;
}

.nav-container > ul > li > a:hover::before {
  opacity: 1;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--text);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  transition: var(--transition);
  align-items: center;
  justify-content: center;
}

.menu-toggle:hover {
  background: var(--border);
}

/* ===== Main & Sections ===== */
main {
  overflow: hidden;
}

section {
  padding: var(--section-pad);
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  position: relative;
}

section > h2 {
  text-align: center;
}

section > h2::after {
  left: 50%;
  transform: translateX(-50%);
}

/* ===== Hero Section ===== */
#home {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: var(--gradient-banner);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  margin: 0 0 60px;
  padding: 120px 24px;
  position: relative;
  overflow: hidden;
}

#home::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(233, 69, 96, 0.2), transparent 70%);
  animation: float 8s ease-in-out infinite;
}

#home::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(83, 52, 131, 0.3), transparent 70%);
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-30px); }
}

#home h1 {
  color: #fff;
  -webkit-text-fill-color: initial;
  background: none;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 0.8s ease both;
  position: relative;
  z-index: 1;
}

#home p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  max-width: 700px;
  margin-bottom: 2rem;
  animation: fadeInUp 0.8s ease 0.2s both;
  position: relative;
  z-index: 1;
}

#home nav[aria-label="面包屑"] {
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s ease 0.4s both;
}

#home nav[aria-label="面包屑"] ol {
  display: flex;
  gap: 8px;
  list-style: none;
  justify-content: center;
  background: rgba(255, 255, 255, 0.15);
  padding: 12px 24px;
  border-radius: 50px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

#home nav[aria-label="面包屑"] li {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

#home nav[aria-label="面包屑"] a {
  color: rgba(255, 255, 255, 0.9);
}

#home nav[aria-label="面包屑"] a:hover {
  color: #fff;
}

/* ===== Section Reveal Animation ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

section:not(#home) {
  animation: fadeInUp 0.6s ease both;
}

/* ===== About Section ===== */
#about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

#about h2 {
  grid-column: 1 / -1;
}

#about p {
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

#about p:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

#about p strong {
  color: var(--primary);
  display: block;
  margin-bottom: 8px;
  font-size: 1.1rem;
}

#about address {
  grid-column: 1 / -1;
}

/* ===== Products Section ===== */
#products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

#products h2 {
  grid-column: 1 / -1;
}

#products article {
  background: var(--gradient-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

#products article::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

#products article:hover::before {
  transform: scaleX(1);
}

#products article:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

#products h3 {
  font-size: 1.5rem;
  margin-bottom: 12px;
  color: var(--primary);
}

#products h4 {
  margin-top: 20px;
  color: var(--text);
}

#products ul {
  list-style: none;
  margin-top: 12px;
}

#products ul li {
  padding: 8px 0 8px 28px;
  position: relative;
  color: var(--text-muted);
}

#products ul li::before {
  content: '✦';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 0.9rem;
}

/* ===== Solutions Section ===== */
#solutions {
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

#solutions h2 {
  text-align: center;
}

#solutions h2::after {
  left: 50%;
  transform: translateX(-50%);
}

#solutions > p {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 2rem;
}

#solutions ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

#solutions li {
  background: var(--bg);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border);
  transition: var(--transition);
}

#solutions li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

#solutions li strong {
  display: block;
  color: var(--primary);
  margin-bottom: 8px;
  font-size: 1.1rem;
}

/* ===== Cases Section ===== */
#cases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  align-items: stretch;
}

#cases h2 {
  grid-column: 1 / -1;
}

#cases article {
  background: var(--gradient-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

#cases article:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

#cases h3 {
  color: var(--primary);
  margin-bottom: 12px;
}

#cases blockquote {
  grid-column: 1 / -1;
  background: var(--gradient-accent);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

#cases blockquote::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: 20px;
  font-size: 120px;
  opacity: 0.3;
  font-family: Georgia, serif;
}

#cases blockquote p {
  color: #fff;
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0;
  position: relative;
  z-index: 1;
}

/* ===== News Section ===== */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.article-grid article {
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.article-grid article:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.article-grid h3 {
  font-size: 1.1rem;
  line-height: 1.4;
  flex-grow: 1;
}

.article-grid time {
  color: var(--text-muted);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-grid time::before {
  content: '📅';
}

.article-grid p {
  font-size: 0.95rem;
  margin-bottom: 0;
  flex-grow: 1;
}

.article-grid a {
  align-self: flex-start;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.article-grid a:hover {
  gap: 8px;
  color: var(--primary-dark);
}

/* ===== FAQ Section ===== */
#faq {
  max-width: 860px;
}

#faq h2 {
  text-align: center;
}

#faq h2::after {
  left: 50%;
  transform: translateX(-50%);
}

details {
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

details:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

details summary {
  padding: 18px 24px;
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
  position: relative;
}

details summary::-webkit-details-marker {
  display: none;
}

details summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

details[open] summary {
  background: var(--gradient-accent);
  color: #fff;
}

details[open] summary::after {
  content: '−';
  transform: rotate(180deg);
  color: #fff;
}

details p {
  padding: 0 24px 18px;
  margin: 0;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

details[open] p {
  color: var(--text);
}

/* ===== HowTo Section ===== */
#howto {
  background: var(--gradient-banner);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  color: #fff;
  margin-top: 60px;
}

#howto h2 {
  color: #fff;
}

#howto h2::after {
  background: var(--gradient-accent);
}

#howto p {
  color: rgba(255, 255, 255, 0.9);
}

#howto p strong {
  color: var(--primary-light);
}

#howto ol {
  list-style: none;
  counter-reset: step;
  margin: 30px 0;
  display: grid;
  gap: 16px;
}

#howto ol li {
  counter-increment: step;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 20px 24px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
  color: #fff;
}

#howto ol li:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(8px);
}

#howto ol li::before {
  content: counter(step);
  background: var(--gradient-accent);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(233, 69, 96, 0.4);
}

/* ===== Footer ===== */
footer {
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-top: 1px solid var(--border);
  padding: 60px 24px 30px;
  margin-top: 60px;
}

footer h2 {
  text-align: center;
  margin-bottom: 30px;
}

footer h2::after {
  left: 50%;
  transform: translateX(-50%);
}

footer > p {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 1rem;
}

footer nav {
  max-width: 1280px;
  margin: 0 auto 30px;
  padding: 24px;
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

footer nav h3 {
  text-align: center;
  margin-bottom: 16px;
  color: var(--primary);
}

footer nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

footer nav ul li a {
  display: inline-block;
  padding: 8px 16px;
  background: var(--bg-card);
  border-radius: 50px;
  border: 1px solid var(--border);
  transition: var(--transition);
  color: var(--text);
  font-size: 0.9rem;
}

footer nav ul li a:hover {
  background: var(--gradient-accent);
  color: #fff;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(233, 69, 96, 0.3);
}

footer small {
  display: block;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.8;
  padding: 4px 0;
}

footer small a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
  .nav-container > ul {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--bg-glass);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
  }

  .nav-container > ul.active {
    display: flex;
  }

  .nav-container > ul > li > a {
    padding: 14px 20px;
    border-radius: 12px;
    text-align: center;
  }

  .menu-toggle {
    display: flex;
  }

  #home {
    min-height: 70vh;
    padding: 100px 20px;
  }

  #about {
    grid-template-columns: 1fr;
  }

  #about h2 {
    grid-column: 1;
  }

  #about address {
    grid-column: 1;
  }

  section {
    padding: 60px 20px;
  }

  #solutions, #howto {
    padding: 40px 24px;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-h: 60px;
  }

  .nav-container {
    padding: 0 16px;
  }

  .brand-logo span {
    font-size: 1.2rem;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  #home {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    padding: 80px 20px;
  }

  #home p {
    font-size: 1rem;
  }

  #products {
    grid-template-columns: 1fr;
  }

  #cases {
    grid-template-columns: 1fr;
  }

  #cases blockquote {
    padding: 24px;
  }

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

  footer nav ul {
    flex-direction: column;
    align-items: center;
  }

  footer {
    padding: 40px 16px 20px;
  }
}

@media (max-width: 480px) {
  .nav-container > ul > li > a {
    padding: 12px 16px;
    font-size: 0.9rem;
  }

  #home nav[aria-label="面包屑"] ol {
    flex-wrap: wrap;
  }

  details summary {
    padding: 14px 16px;
    font-size: 0.95rem;
  }

  details p {
    padding: 12px 16px;
  }

  #howto ol li {
    flex-direction: column;
    text-align: center;
  }

  #howto ol li::before {
    margin-bottom: 8px;
  }
}

/* ===== Print Styles ===== */
@media print {
  header, footer, #home nav[aria-label="面包屑"] {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  section {
    padding: 20px 0;
    max-width: 100%;
  }

  h1 {
    -webkit-text-fill-color: initial;
    background: none;
    color: #000;
  }
}

/* ===== 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;
  }
}

/* ===== Utility Classes ===== */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.p-5 { padding: 3rem; }

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

.glass-card {
  background: var(--bg-glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}
```