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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background: #0a0a0f;
}

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

header {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

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

.logo-img {
    height: 40px;
    width: auto;
    filter: drop-shadow(0 0 10px rgba(0, 245, 255, 0.5));
    transition: filter 0.3s;
}

.logo-img:hover {
    filter: drop-shadow(0 0 20px rgba(0, 245, 255, 0.8));
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    margin-left: 10px;
    background: linear-gradient(135deg, #ffffff 0%, #00f5ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 10px rgba(0, 245, 255, 0.5));
}

nav a {
    margin-left: 30px;
    text-decoration: none;
    color: #a0a0b0;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

nav a:hover {
    color: #00f5ff;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00f5ff, #0066ff);
    transition: width 0.3s;
}

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

.hero {
    background: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #16213e 100%);
    position: relative;
    overflow: hidden;
    color: #fff;
    padding: 60px 20px;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 245, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 102, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(138, 43, 226, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 245, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 245, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff 0%, #00f5ff 50%, #0066ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}

.hero p {
    font-size: 20px;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
    color: #b0b0c0;
    position: relative;
    z-index: 1;
}

section {
    padding: 80px 0;
}

section h2 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #ffffff 0%, #00f5ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    text-align: center;
    font-size: 18px;
    color: #a0a0b0;
    margin-bottom: 10px;
}

.section-subdesc {
    text-align: center;
    font-size: 14px;
    color: #707080;
    margin-bottom: 50px;
}

.features {
    background: linear-gradient(180deg, #0a0a0f 0%, #12121a 100%);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 245, 255, 0.3), transparent);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background: linear-gradient(145deg, rgba(20, 20, 30, 0.9) 0%, rgba(15, 15, 25, 0.9) 100%);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid rgba(0, 245, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #00f5ff, #0066ff, #8a2be2);
    opacity: 0;
    transition: opacity 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 40px rgba(0, 245, 255, 0.15);
    border-color: rgba(0, 245, 255, 0.3);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(0, 245, 255, 0.5));
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: #fff;
}

.feature-card > p {
    color: #b0b0c0;
    margin-bottom: 15px;
    font-size: 16px;
}

.feature-desc {
    color: #707080;
    font-size: 14px;
    margin-bottom: 20px;
}

.feature-card ul {
    list-style: none;
    padding-left: 0;
}

.feature-card li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    color: #a0a0b0;
    font-size: 14px;
}

.feature-card li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #00f5ff;
    font-weight: bold;
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

.scenarios {
    background: linear-gradient(180deg, #12121a 0%, #0a0a0f 100%);
    position: relative;
}

.scenarios::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(138, 43, 226, 0.3), transparent);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.scenario-card {
    background: linear-gradient(145deg, rgba(20, 20, 30, 0.9) 0%, rgba(15, 15, 25, 0.9) 100%);
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid transparent;
    border-image: linear-gradient(180deg, #00f5ff, #0066ff) 1;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
}

.scenario-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 40px rgba(138, 43, 226, 0.15);
}

.scenario-card h3 {
    font-size: 22px;
    margin-bottom: 10px;
    color: #fff;
}

.scenario-card > p {
    color: #b0b0c0;
    margin-bottom: 15px;
    font-size: 16px;
}

.scenario-desc {
    color: #707080;
    font-size: 14px;
    margin-bottom: 20px;
}

.scenario-card ul {
    list-style: none;
    padding-left: 0;
}

.scenario-card li {
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
    color: #a0a0b0;
    font-size: 14px;
}

.scenario-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #00f5ff;
    font-weight: bold;
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

.pages {
    background: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #16213e 100%);
    position: relative;
    overflow: hidden;
}

.pages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 70%, rgba(0, 245, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(138, 43, 226, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.pages h2 {
    background: linear-gradient(135deg, #ffffff 0%, #00f5ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pages .section-desc {
    color: rgba(255, 255, 255, 0.8);
}

.pages .section-subdesc {
    color: rgba(255, 255, 255, 0.6);
}

.pages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
    position: relative;
    z-index: 1;
}

.page-card {
    background: rgba(20, 20, 35, 0.6);
    backdrop-filter: blur(20px);
    padding: 40px 30px;
    border-radius: 12px;
    border: 1px solid rgba(0, 245, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.page-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 245, 255, 0.2);
    border-color: rgba(0, 245, 255, 0.4);
}

.page-number {
    font-size: 48px;
    font-weight: bold;
    background: linear-gradient(135deg, rgba(0, 245, 255, 0.3) 0%, rgba(0, 102, 255, 0.3) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.page-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: #fff;
}

.page-card > p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 15px;
    font-size: 16px;
}

.page-desc {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.download {
    background: linear-gradient(180deg, #0a0a0f 0%, #12121a 100%);
    position: relative;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 102, 255, 0.3), transparent);
}

.version-tag {
    display: inline-block;
    background: linear-gradient(135deg, #00f5ff 0%, #0066ff 100%);
    color: #0a0a0f;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 40px;
    box-shadow: 0 4px 15px rgba(0, 245, 255, 0.3);
}

.platform-section {
    margin-bottom: 60px;
}

.platform-section:last-child {
    margin-bottom: 0;
}

.platform-section h3 {
    font-size: 28px;
    margin-bottom: 10px;
    color: #fff;
}

.platform-desc {
    color: #a0a0b0;
    margin-bottom: 30px;
    font-size: 16px;
}

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

.download-card {
    background: linear-gradient(145deg, rgba(20, 20, 30, 0.9) 0%, rgba(15, 15, 25, 0.9) 100%);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid rgba(0, 102, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 40px rgba(0, 102, 255, 0.2);
    border-color: rgba(0, 102, 255, 0.3);
}

.download-card h4 {
    font-size: 20px;
    margin-bottom: 5px;
    color: #fff;
}

.arch-desc {
    background: linear-gradient(135deg, #00f5ff 0%, #0066ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 16px;
}

.arch-detail {
    color: #707080;
    font-size: 14px;
    margin-bottom: 20px;
}

.download-links {
    display: flex;
    flex-direction: row;
    gap: 20px;
    justify-content: flex-start;
}

.download-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform 0.2s;
}

.download-link:hover {
    transform: translateY(-2px);
}

.link-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px 0 0 8px;
    font-size: 18px;
}

.link-icon.quark-bg {
    background: linear-gradient(135deg, #00f5ff 0%, #0066ff 100%);
}

.link-icon.baidu-bg {
    background: linear-gradient(135deg, #0066ff 0%, #8a2be2 100%);
}

.link-text {
    display: flex;
    align-items: center;
    padding: 0 16px;
    height: 40px;
    background: linear-gradient(145deg, rgba(30, 30, 40, 0.9) 0%, rgba(20, 20, 30, 0.9) 100%);
    border: 1px solid rgba(0, 245, 255, 0.2);
    border-left: none;
    border-radius: 0 8px 8px 0;
    color: #e0e0e0;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
}

.download-link:hover .link-text {
    border-color: rgba(0, 245, 255, 0.4);
    background: linear-gradient(145deg, rgba(40, 40, 50, 0.9) 0%, rgba(30, 30, 40, 0.9) 100%);
}

.faq {
    background: linear-gradient(180deg, #12121a 0%, #0a0a0f 100%);
    position: relative;
}

.faq::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 245, 255, 0.3), transparent);
}

.faq-list {
    max-width: 800px;
    margin: 50px auto 0;
}

.faq-item {
    background: linear-gradient(145deg, rgba(20, 20, 30, 0.9) 0%, rgba(15, 15, 25, 0.9) 100%);
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px solid rgba(0, 245, 255, 0.1);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item:hover {
    border-color: rgba(0, 245, 255, 0.2);
    box-shadow: 0 4px 20px rgba(0, 245, 255, 0.1);
}

.faq-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #fff;
}

.faq-item p {
    color: #a0a0b0;
    font-size: 16px;
    line-height: 1.8;
}

footer {
    background: #050508;
    border-top: 1px solid rgba(0, 245, 255, 0.1);
    color: #fff;
    padding: 40px 0;
    text-align: center;
}

footer p {
    opacity: 0.6;
    font-size: 14px;
    color: #707080;
}

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background: linear-gradient(145deg, rgba(25, 25, 35, 0.95) 0%, rgba(15, 15, 25, 0.95) 100%);
    margin: 10% auto;
    padding: 40px;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    position: relative;
    animation: slideIn 0.3s;
    border: 1px solid rgba(0, 245, 255, 0.2);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 28px;
    font-weight: bold;
    color: #707080;
    cursor: pointer;
    transition: color 0.3s;
}

.close:hover {
    color: #00f5ff;
}

.modal-content h3 {
    text-align: center;
    margin-bottom: 30px;
    color: #fff;
}

.download-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.download-option {
    display: flex;
    align-items: center;
    padding: 20px;
    background: linear-gradient(145deg, rgba(30, 30, 40, 0.9) 0%, rgba(20, 20, 30, 0.9) 100%);
    border-radius: 8px;
    text-decoration: none;
    color: #e0e0e0;
    transition: background 0.3s, transform 0.2s, border-color 0.3s;
    border: 1px solid rgba(0, 245, 255, 0.1);
}

.download-option:hover {
    background: linear-gradient(145deg, rgba(40, 40, 50, 0.9) 0%, rgba(30, 30, 40, 0.9) 100%);
    transform: translateY(-2px);
    border-color: rgba(0, 245, 255, 0.3);
}

.option-icon {
    font-size: 32px;
    margin-right: 15px;
}

.option-info h4 {
    font-size: 18px;
    margin-bottom: 5px;
    color: #fff;
}

.option-info p {
    font-size: 14px;
    color: #707080;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 15px;
    }

    section h2 {
        font-size: 24px;
    }

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

    header .container {
        flex-direction: column;
        gap: 15px;
    }

    nav a {
        margin: 0 10px;
        font-size: 14px;
    }

    .logo {
        flex-direction: column;
        gap: 5px;
    }

    .logo-text {
        font-size: 20px;
        margin-left: 0;
    }

    .logo-img {
        height: 30px;
    }

    .download-links {
        flex-direction: column;
        gap: 10px;
    }

    .download-link {
        width: 100%;
    }

    .link-text {
        font-size: 13px;
        padding: 0 12px;
    }

    .feature-card,
    .scenario-card,
    .page-card,
    .download-card,
    .faq-item {
        padding: 20px;
    }

    .feature-card h3,
    .scenario-card h3,
    .page-card h3 {
        font-size: 20px;
    }

    .platform-section h3 {
        font-size: 24px;
    }
}