* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

body {
    background: #0c0118;
    color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    padding: 30px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: all 0.3s ease;
    background: rgba(12, 1, 24, 0.95);
    backdrop-filter: blur(10px);
}

header.scrolled {
    padding: 15px 0;
    box-shadow: 0 5px 20px rgba(147, 51, 234, 0.2);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 32px;
    font-weight: bold;
    background: linear-gradient(45deg, #d946ef, #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 10px rgba(217, 70, 239, 0.3);
}

.header-nav {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-link:hover {
    background-color: rgba(52, 152, 219, 0.1);
}

.nav-download-btn {
    display: inline-block;
    padding: 10px 25px;
    background: linear-gradient(45deg, #d946ef, #8b5cf6);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(139, 92, 246, 0.3);
}

.nav-download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.5);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
}

.mobile-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(12, 1, 24, 0.98);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.mobile-nav .nav-link {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav .nav-download-btn {
    margin-top: 10px;
    text-align: center;
}

.hero {
    padding-top: 150px;
    padding-bottom: 100px;
    position: relative;
    background: linear-gradient(180deg, #0c0118 0%, #2c0950 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 30%, rgba(217, 70, 239, 0.15) 0%, rgba(12, 1, 24, 0) 70%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 5;
}

.hero-text {
    padding-right: 20px;
}

h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 30px;
    background: linear-gradient(45deg, #fff, #d946ef);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.hero-tagline {
    font-size: 18px;
    color: #b8b8b8;
    margin-bottom: 40px;
    line-height: 1.6;
}

.download-buttons {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    background: linear-gradient(45deg, #d946ef, #8b5cf6);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(139, 92, 246, 0.5);
}

.qr-download {
    text-align: center;
    margin-top: 20px;
}

.qr-code-img {
    width: 150px;
    height: 150px;
    display: block;
    margin: 0 auto 10px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.qr-code-text {
    font-size: 14px;
    color: #b8b8b8;
    display: block;
}

.qr-code {
    background: #fff;
    padding: 15px;
    border-radius: 15px;
    display: inline-block;
    margin-bottom: 10px;
}

.qr-code img {
    width: 150px;
    height: 150px;
    display: block;
}

.qr-text {
    font-size: 14px;
    color: #b8b8b8;
}

.hero-screenshots {
    position: relative;
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.screenshot-wrapper {
    position: absolute;
    max-width: 200px;
    transition: all 0.3s ease;
}

.screenshot-wrapper:nth-child(1) {
    transform: translateX(-120%) translateY(-10%) rotate(-15deg);
    z-index: 1;
}

.screenshot-wrapper:nth-child(2) {
    z-index: 3;
}

.screenshot-wrapper:nth-child(3) {
    transform: translateX(120%) translateY(-10%) rotate(15deg);
    z-index: 2;
}

.screenshot-wrapper img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.features {
    padding: 100px 0;
    background: linear-gradient(180deg, #2c0950 0%, #0c0118 100%);
}

.section-heading {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #fff, #d946ef);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 18px;
    color: #b8b8b8;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-item:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.2);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.feature-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #fff;
}

.feature-description {
    color: #b8b8b8;
    line-height: 1.6;
}

.app-showcase {
    padding: 100px 0;
    background: #0c0118;
}

.showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.showcase-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #fff, #d946ef);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.showcase-content p {
    font-size: 18px;
    color: #b8b8b8;
    margin-bottom: 30px;
    line-height: 1.6;
}

.highlight-points {
    list-style: none;
}

.highlight-points li {
    padding: 10px 0;
    color: #b8b8b8;
    position: relative;
    padding-left: 30px;
}

.highlight-points li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #d946ef;
    font-weight: bold;
}

.showcase-screenshots {
    position: relative;
    height: 450px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.showcase-screenshot {
    position: absolute;
    max-width: 180px;
    transition: all 0.3s ease;
}

.showcase-screenshot:nth-child(1) {
    transform: translateX(-100%) translateY(10%) rotate(-10deg);
    z-index: 1;
}

.showcase-screenshot:nth-child(2) {
    z-index: 3;
}

.showcase-screenshot:nth-child(3) {
    transform: translateX(100%) translateY(10%) rotate(10deg);
    z-index: 2;
}

.showcase-screenshot img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.quotes-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #0c0118 0%, #2c0950 100%);
}

.quotes-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.quote-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.quote-text {
    font-size: 16px;
    color: #b8b8b8;
    margin-bottom: 20px;
    line-height: 1.6;
    font-style: italic;
}

.quote-author {
    color: #d946ef;
    font-weight: 600;
}

.download-section {
    padding: 100px 0;
    background: #0c0118;
    text-align: center;
}

.download-options {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 50px;
}

.download-option {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    min-width: 280px;
}

.download-option:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
}

.download-option h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #fff;
}

.download-option p {
    color: #b8b8b8;
    margin-bottom: 25px;
}

.download-option .download-btn {
    width: 100%;
    justify-content: center;
}

.ios-coming-soon {
    background: rgba(255, 193, 7, 0.1);
    border-color: rgba(255, 193, 7, 0.3);
}

.ios-coming-soon .download-btn {
    background: linear-gradient(45deg, #ffc107, #ff8f00);
    cursor: not-allowed;
    opacity: 0.7;
}

footer {
    background: #0a0015;
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #fff;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: #b8b8b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #d946ef;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #666;
}

/* 移动端适配 */
@media (max-width: 992px) {
    .hero-content, .showcase-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-screenshots {
        height: 400px;
        margin-top: 50px;
    }
    
    .showcase-screenshots {
        margin-top: 40px;
    }
    
    .screenshot-wrapper, .showcase-screenshot {
        max-width: 180px;
    }
    
    .hero-text {
        padding-right: 0;
    }
    
    .highlight-points {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .download-options {
        flex-direction: column;
        align-items: center;
    }
    
    .download-option {
        width: 100%;
        max-width: 320px;
        margin-bottom: 20px;
    }
}

@media (max-width: 768px) {
    .header-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .logo {
        font-size: 26px;
    }
    
    h1 {
        font-size: 40px;
        margin-bottom: 20px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .download-options {
        gap: 20px;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .hero-screenshots, .showcase-screenshots {
        height: 350px;
    }
    
    .screenshot-wrapper, .showcase-screenshot {
        max-width: 150px;
    }
    
    .screenshot-wrapper:nth-child(1), .showcase-screenshot:nth-child(1) {
        transform: translateX(-90%) translateY(5%) rotate(-8deg);
    }
    
    .screenshot-wrapper:nth-child(3), .showcase-screenshot:nth-child(3) {
        transform: translateX(90%) translateY(5%) rotate(8deg);
    }
    
    .feature-item {
        padding: 25px 20px;
    }
    
    .feature-icon {
        font-size: 36px;
        margin-bottom: 15px;
    }
    
    .feature-title {
        font-size: 20px;
        margin-bottom: 10px;
    }
    
    .feature-description {
        font-size: 14px;
    }
    
    .quotes-container {
        gap: 15px;
    }
    
    .quote-card {
        padding: 20px;
    }
    
    .quote-text {
        font-size: 14px;
    }
}

@media (max-width: 576px) {
    .screenshot-wrapper:nth-child(1), .showcase-screenshot:nth-child(1),
    .screenshot-wrapper:nth-child(3), .showcase-screenshot:nth-child(3) {
        display: none;
    }
    
    .screenshot-wrapper:nth-child(2), .showcase-screenshot:nth-child(2) {
        transform: none;
        position: relative;
        max-width: 200px;
        margin: 0 auto;
    }
    
    .hero-screenshots, .showcase-screenshots {
        height: 350px;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    
    .qr-code-img {
        width: 100px;
        height: 100px;
    }
    
    .qr-code-text {
        font-size: 12px;
    }
    
    .hero {
        padding-top: 120px;
        padding-bottom: 60px;
    }
    
    .features, .app-showcase, .quotes-section, .download-section {
        padding: 60px 0;
    }
    
    .section-heading {
        margin-bottom: 40px;
    }
    
    .hero-tagline, .section-subtitle {
        font-size: 16px;
    }
    
    .logo {
        font-size: 24px;
    }
    
    .nav-download-btn {
        padding: 8px 16px;
        font-size: 14px;
    }
    
    .qr-code img,
    .qr-code-img {
        width: 120px;
        height: 120px;
    }
    
    .qr-download {
        margin-top: 15px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .mobile-nav {
        padding: 15px;
    }
    
    .mobile-nav .nav-download-btn {
        padding: 10px 20px;
        font-size: 14px;
    }
}
.privacy-modal {
     position: fixed;
     bottom: 20px;
     right: 20px;
     background: white;
     border: 1px solid #ddd;
     border-radius: 8px;
     box-shadow: 0 4px 20px rgba(0,0,0,0.15);
     padding: 20px;
     max-width: 350px;
     z-index: 1000;
     transform: translateY(100px);
     opacity: 0;
     transition: all 0.3s ease;
 }
 .privacy-modal.show {
     transform: translateY(0);
     opacity: 1;
 }
 .privacy-modal .close-btn {
     position: absolute;
     top: 10px;
     right: 15px;
     background: none;
     border: none;
     font-size: 20px;
     color: #999;
     cursor: pointer;
     padding: 0;
     width: 20px;
     height: 20px;
     display: flex;
     align-items: center;
     justify-content: center;
 }
 .privacy-modal .close-btn:hover {
     color: #666;
 }
 .privacy-modal h4 {
     margin: 0 0 10px 0;
     color: #2c3e50;
     font-size: 16px;
     display: flex;
     align-items: center;
     gap: 8px;
 }
 .privacy-modal p {
     margin: 0;
     color: #555;
     font-size: 14px;
     line-height: 1.5;
 }
 .privacy-modal a {
     color: #3498db;
     text-decoration: none;
     font-weight: 500;
 }
 .privacy-modal a:hover {
     text-decoration: underline;
 }
 .privacy-modal .actions {
     margin-top: 15px;
     display: flex;
     gap: 10px;
 }
 .privacy-modal .btn {
     padding: 8px 16px;
     border: none;
     border-radius: 4px;
     cursor: pointer;
     font-size: 12px;
     transition: all 0.3s ease;
 }
 .privacy-modal .btn-primary {
     background: #3498db;
     color: white;
 }
 .privacy-modal .btn-primary:hover {
     background: #2980b9;
 }
 .privacy-modal .btn-secondary {
     background: #ecf0f1;
     color: #7f8c8d;
 }
 .privacy-modal .btn-secondary:hover {
     background: #d5dbdb;
 }
 .language-switcher {
     display: flex;
     gap: 10px;
     align-items: center;
 }
 .language-switcher a {
     color: #666;
     text-decoration: none;
     padding: 4px 8px;
     border-radius: 3px;
     font-size: 12px;
     transition: all 0.3s ease;
 }
 .language-switcher a:hover {
     background-color: rgba(52, 152, 219, 0.1);
     color: #3498db;
 }
 .language-switcher .active {
     background-color: #3498db;
     color: white;
 }