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

:root {
    --primary-color: #10a37f;
    --primary-hover: #0d8a6a;
    --secondary-color: #6e56cf;
    --accent-color: #ff6b6b;
    --bg-dark: #0d0d0d;
    --bg-secondary: #1a1a1a;
    --bg-card: #1f1f1f;
    --text-primary: #ececec;
    --text-secondary: #8e8e8e;
    --border-color: #2a2a2a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #0d0d0d;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(16, 163, 127, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(110, 86, 207, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* 粒子背景画布 */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(13, 13, 13, 0.8);
    backdrop-filter: blur(12px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    padding-bottom: 20px;
}

.logo {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 36px;
    width: auto;
    display: block;
}

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

.nav {
    display: flex;
    gap: 32px;
}

.nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.3s;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: 180px 0 120px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* 英雄区域光效 */
.hero-glow {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(16, 163, 127, 0.12) 0%, transparent 70%);
    filter: blur(80px);
    pointer-events: none;
    z-index: 1;
    animation: breathe 4s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.hero-title {
    font-size: 64px;
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    animation: fadeInUp 0.8s ease-out;
    position: relative;
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0.8) 0%, 
        rgba(255, 255, 255, 1) 30%,
        rgba(16, 163, 127, 1) 50%,
        rgba(255, 255, 255, 1) 70%,
        rgba(255, 255, 255, 0.8) 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out, shimmer 3s linear infinite;
}

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

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

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
    animation: fadeInUp 0.8s ease-out 0.1s backwards;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.btn {
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: var(--primary-color);
    color: #ffffff;
    font-weight: 500;
    position: relative;
    overflow: hidden;
    transition: all 0.2s ease;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 8px 16px rgba(16, 163, 127, 0.2);
}

.btn-primary span {
    position: relative;
    z-index: 1;
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

.hero-note {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Features Section */
.features {
    padding: 120px 0;
    background: transparent;
    position: relative;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    animation: fadeInUp 0.6s ease-out;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 64px;
    animation: fadeInUp 0.6s ease-out 0.1s backwards;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.feature-card {
    background: rgba(31, 31, 31, 0.5);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(16, 163, 127, 0.05), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(16, 163, 127, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(16, 163, 127, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.feature-icon svg {
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    background: rgba(16, 163, 127, 0.15);
}

.feature-card:hover .feature-icon svg {
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.6;
}

/* Video Section */
.video-section {
    padding: 120px 0;
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(31, 31, 31, 0.5);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.06);
    aspect-ratio: 16/9;
    position: relative;
}

.video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(26, 26, 26, 0.8);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

#videoContainer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-placeholder:hover {
    background: rgba(31, 31, 31, 0.9);
}

.video-placeholder svg {
    color: var(--primary-color);
    margin-bottom: 16px;
    transition: all 0.3s ease;
}

.video-placeholder:hover svg {
    transform: scale(1.1);
    filter: drop-shadow(0 0 20px rgba(16, 163, 127, 0.4));
}

.video-placeholder p {
    font-size: 18px;
    position: relative;
    z-index: 1;
}

video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

/* Stats Section */
.stats {
    padding: 80px 0;
    background: transparent;
    position: relative;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 48px;
}

.stat-item {
    text-align: center;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-4px);
}

.stat-number {
    font-size: 48px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.02em;
    transition: color 0.3s ease;
}

.stat-item:hover .stat-number {
    color: var(--primary-color);
}

.stat-label {
    font-size: 16px;
    color: var(--text-secondary);
}

/* Download Section */
.download {
    padding: 120px 0;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.download-card {
    background: rgba(31, 31, 31, 0.5);
    backdrop-filter: blur(10px);
    padding: 48px 32px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.download-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(16, 163, 127, 0.08), transparent);
    transition: left 0.5s ease;
}

.download-card:hover::before {
    left: 100%;
}

.download-card:hover {
    transform: translateY(-4px);
    border-color: rgba(16, 163, 127, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes gradient-rotate {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.download-card:hover {
    transform: translateY(-4px);
    border-color: rgba(16, 163, 127, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.download-icon {
    width: 64px;
    height: 64px;
    background: rgba(16, 163, 127, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.download-icon svg {
    transition: transform 0.3s ease;
}

.download-card:hover .download-icon {
    background: rgba(16, 163, 127, 0.15);
}

.download-card:hover .download-icon svg {
    transform: scale(1.1);
}

.download-card h3 {
    font-size: 28px;
    margin-bottom: 8px;
}

.download-version {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 8px;
}

.download-size {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 32px;
}

.btn-download {
    background: var(--primary-color);
    color: #ffffff;
    font-weight: 500;
    width: 100%;
    transition: all 0.2s ease;
}

.btn-download:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 8px 16px rgba(16, 163, 127, 0.2);
}

/* Footer */
.footer {
    background: transparent;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 80px 0 32px;
    position: relative;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 64px;
    margin-bottom: 48px;
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 16px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-column h4 {
    font-size: 16px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 12px;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .section-title {
        font-size: 36px;
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

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

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

    .nav {
        gap: 20px;
    }

    .nav a {
        font-size: 14px;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--primary-color);
    color: #ffffff;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* 网格背景效果 */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

/* 按钮文字需要在最上层 */
.btn {
    position: relative;
}

.btn > * {
    position: relative;
    z-index: 1;
}/* VIP Section */
.vip-section {
  padding: 120px 0;
  position: relative;
  background: transparent;
}

.vip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
}

.vip-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 40px;
  position: relative;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.vip-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.vip-card.featured {
  border: 2px solid var(--primary-color);
  box-shadow: 0 0 30px rgba(16, 163, 127, 0.1);
  transform: scale(1.05);
  z-index: 10;
}

.vip-card.featured:hover {
  transform: scale(1.05) translateY(-4px);
  box-shadow: 0 20px 50px rgba(16, 163, 127, 0.2);
}

.vip-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--primary-color);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.vip-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.vip-desc {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

.vip-price {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 32px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.vip-price small {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-secondary);
}

.vip-features {
  list-style: none;
  margin-bottom: 40px;
  flex: 1;
}

.vip-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-size: 14px;
}

.vip-features li svg {
  color: var(--primary-color);
  flex-shrink: 0;
}

.vip-btn {
  width: 100%;
  padding: 14px;
  border-radius: 8px;
  text-align: center;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s;
  margin-top: auto;
}

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

.vip-btn.primary:hover {
  background: var(--primary-hover);
}

.vip-btn.secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.vip-btn.secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}