/* 根变量 - 高端暗黑主题 */
:root {
    --bg-color: #000000;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --accent-primary: #6c5ce7;
    --accent-secondary: #00cec9;
    --gradient-main: linear-gradient(135deg, #6c5ce7 0%, #00cec9 100%);
    --surface-dark: #121212;
    --surface-glass: rgba(255, 255, 255, 0.05);
    --border-glass: rgba(255, 255, 255, 0.1);
    --font-heading: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-body: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --nav-height: 80px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
.btn,
.nav-links a {
    font-family: var(--font-heading);
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

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

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    gap: 8px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
    background: var(--gradient-main);
    color: white;
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.6);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-glass);
    color: var(--text-main);
}

.btn-secondary:hover {
    border-color: var(--text-main);
    background: var(--surface-glass);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn.sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

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

/* 导航栏 */
.navbar {
    height: var(--nav-height);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
}

.nav-container {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.5rem;
    font-family: var(--font-heading);
}

.nav-logo-img {
    height: 40px;
    width: 40px;
    border-radius: 10px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-links a:not(.btn) {
    color: var(--text-muted);
    font-weight: 500;
}

.nav-links a:not(.btn):hover {
    color: var(--text-main);
}

/* 首屏区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--nav-height);
    overflow: hidden;
}

/* 背景抽象光斑 */
.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(108, 92, 231, 0.2) 0%, rgba(0, 0, 0, 0) 70%);
    border-radius: 50%;
    z-index: -1;
    filter: blur(60px);
}

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

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--accent-secondary);
    margin-bottom: 24px;
    font-weight: 600;
}

.hero-content h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    perspective: 1000px;
}

.hero-mockup-placeholder {
    width: 320px;
    height: 650px;
    background: #1a1a1a;
    border-radius: 40px;
    border: 8px solid #333;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    background-image: linear-gradient(45deg, #121212, #1e1e1e);
    transform: rotateY(-15deg) rotateX(5deg);
    transition: transform 0.5s;
}

.hero-mockup-placeholder:hover {
    transform: rotateY(0) rotateX(0);
}

.mockup-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
    font-family: var(--font-heading);
}

.mockup-content i {
    font-size: 4rem;
    margin-bottom: 10px;
    color: var(--accent-primary);
}

/* 特性功能 */
.features {
    padding: 120px 0;
    background: #050505;
}

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

.section-header h2 {
    font-size: 3rem;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    padding: 40px;
    border-radius: 20px;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
}

.icon-box {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* 规格参数 */
.specs {
    padding: 120px 0;
}

.specs-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.specs-content h2 {
    font-size: 3rem;
    margin-bottom: 40px;
    color: var(--text-muted);
}

.white-text {
    color: var(--text-main);
}

.specs-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.specs-list li {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.specs-list i {
    font-size: 1.5rem;
    color: var(--accent-secondary);
    margin-top: 4px;
}

.specs-list strong {
    display: block;
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.specs-list p {
    color: var(--text-muted);
}

.visual-card {
    width: 100%;
    aspect-ratio: 1;
    background: radial-gradient(circle at center, #1a1a1a 0%, #000 70%);
    border-radius: 30px;
    border: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.eq-visualizer {
    display: flex;
    gap: 10px;
    height: 100px;
    align-items: center;
    margin-bottom: 20px;
}

.bar {
    width: 12px;
    background: var(--gradient-main);
    border-radius: 10px;
    animation: visualize 1.2s infinite ease-in-out;
}

.bar:nth-child(1) {
    height: 40px;
    animation-delay: 0.1s;
}

.bar:nth-child(2) {
    height: 80px;
    animation-delay: 0.3s;
}

.bar:nth-child(3) {
    height: 60px;
    animation-delay: 0.2s;
}

.bar:nth-child(4) {
    height: 90px;
    animation-delay: 0.4s;
}

.bar:nth-child(5) {
    height: 50px;
    animation-delay: 0.1s;
}

@keyframes visualize {

    0%,
    100% {
        transform: scaleY(1);
    }

    50% {
        transform: scaleY(0.5);
    }
}

/* 行动号召 CTA */
.cta {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(108, 92, 231, 0.1) 100%);
}

.cta-content h2 {
    font-size: 3rem;
    margin-bottom: 16px;
}

.cta-content p {
    color: var(--text-muted);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.small-note {
    font-size: 0.8rem;
    opacity: 0.6;
}

/* 页脚 */
footer {
    border-top: 1px solid var(--border-glass);
    padding: 80px 0;
    background: #020202;
    margin-top: 80px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
}

.footer-brand h4 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 80px;
}

.link-group h5 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.link-group a {
    display: block;
    color: var(--text-muted);
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.link-group a:hover {
    color: var(--accent-secondary);
}

/* 动画关键帧 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式适配 */
@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

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

    .hero-content h1 {
        font-size: 3.5rem;
    }

    .nav-links {
        display: none;
        /* simple hide for mobile for this demo */
    }

    .specs-container {
        grid-template-columns: 1fr;
    }

    .logo {
        margin: 0 auto;
    }
}


/* 详细功能展示 (Z字形布局) */
.detailed-features {
    padding: 100px 0;
    background: #020202;
    /* Seamless blend */
}

.feature-row {
    display: flex;
    align-items: center;
    gap: 80px;
    margin-bottom: 120px;
    opacity: 0;
    /* For animation */
    transform: translateY(30px);
}

.feature-row:last-child {
    margin-bottom: 0;
}

.feature-row.reverse {
    flex-direction: row-reverse;
}

.feature-text {
    flex: 1;
}

.feature-icon-small {
    display: inline-flex;
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-secondary);
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
    border: 1px solid var(--border-glass);
}

.feature-text h3 {
    font-size: 2.2rem;
    margin-bottom: 16px;
    background: linear-gradient(to right, #fff, #bbb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-text p {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.8;
}

.feature-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.visual-placeholder {
    width: 100%;
    max-width: 500px;
    height: 300px;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    position: relative;
    overflow: hidden;
    transition: transform 0.4s;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
}

.visual-placeholder:hover {
    transform: scale(1.02);
    border-color: rgba(255, 255, 255, 0.2);
}

.visual-placeholder i {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.5;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Z字形布局响应式适配 */
@media (max-width: 900px) {
    .feature-row {
        flex-direction: column;
        gap: 40px;
        text-align: center;
        margin-bottom: 80px;
    }

    .feature-row.reverse {
        flex-direction: column;
    }

    .feature-text h3 {
        font-size: 1.8rem;
    }

    .visual-placeholder {
        height: 250px;
    }
}/* *��q�u��D�Xm͓�\!} */

.hero-image-real {

    width: 320px;

    height: auto;

    border-radius: 40px;

    border: 8px solid #333;

    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);

    transform: rotateY(-15deg) rotateX(5deg);

    transition: transform 0.5s;

    background: #000;

}



.hero-image-real:hover {

    transform: rotateY(0) rotateX(0);

}



/* �~��Y�~� �P�S */

@media (max-width: 900px) {

    .hero-image-real {

        width: 280px;

        transform: none;

    }



    .hero-image-real:hover {

        transform: none;

    }

}