/* 全局重置与变量 */
:root {
    --bg-color: #0a0e17;
    --text-main: #e0e6ed;
    --text-muted: #8b9bb4;
    --primary-color: #00f0ff;
    --primary-hover: #00c3cc;
    --secondary-color: #7000ff;
    --card-bg: rgba(15, 23, 42, 0.6);
    --border-color: rgba(0, 240, 255, 0.2);
    --font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 1rem 0;
}

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

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

.logo img {
    height: 40px;
    margin-right: 10px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
    letter-spacing: 2px;
}

.navbar nav ul {
    display: flex;
    gap: 2rem;
}

.navbar nav a {
    font-weight: 500;
    position: relative;
    padding-bottom: 5px;
}

.navbar nav a:hover, .navbar nav a.active {
    color: var(--primary-color);
}

.navbar nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
    box-shadow: 0 0 8px var(--primary-color);
}

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

/* 主视觉区 (Hero) */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
    background: radial-gradient(circle at 50% 50%, rgba(112, 0, 255, 0.1) 0%, rgba(10, 14, 23, 1) 70%);
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 2;
    position: relative;
}

.hero-text {
    flex: 1;
    max-width: 600px;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #fff;
    position: relative;
}

/* 故障风标题特效 */
.glitch {
    position: relative;
}
.glitch::before, .glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
}
.glitch::before {
    left: 2px;
    text-shadow: -2px 0 red;
    clip: rect(24px, 550px, 90px, 0);
    animation: glitch-anim-2 3s infinite linear alternate-reverse;
}
.glitch::after {
    left: -2px;
    text-shadow: -2px 0 var(--primary-color);
    clip: rect(85px, 550px, 140px, 0);
    animation: glitch-anim 2.5s infinite linear alternate-reverse;
}

@keyframes glitch-anim {
    0% { clip: rect(10px, 9999px, 80px, 0); }
    20% { clip: rect(60px, 9999px, 10px, 0); }
    40% { clip: rect(30px, 9999px, 90px, 0); }
    60% { clip: rect(80px, 9999px, 30px, 0); }
    80% { clip: rect(20px, 9999px, 70px, 0); }
    100% { clip: rect(90px, 9999px, 20px, 0); }
}
@keyframes glitch-anim-2 {
    0% { clip: rect(65px, 9999px, 100px, 0); }
    20% { clip: rect(15px, 9999px, 80px, 0); }
    40% { clip: rect(90px, 9999px, 20px, 0); }
    60% { clip: rect(30px, 9999px, 70px, 0); }
    80% { clip: rect(80px, 9999px, 40px, 0); }
    100% { clip: rect(20px, 9999px, 90px, 0); }
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.download-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 4px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.3), inset 0 0 10px rgba(0, 240, 255, 0.1);
}

.btn-primary:hover {
    background: var(--primary-color);
    color: #000;
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.6), inset 0 0 15px rgba(0, 240, 255, 0.4);
}

.btn .icon {
    margin-right: 10px;
    font-size: 1.3rem;
}

.btn .version {
    font-size: 0.8rem;
    margin-left: 15px;
    opacity: 0.8;
    font-weight: normal;
}

.sys-req {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

.mockup-container {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.mockup-container img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
    position: relative;
    z-index: 2;
}

.floating {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.2) 0%, transparent 70%);
    z-index: 1;
    filter: blur(40px);
}

#particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* 功能特性区 */
.features {
    padding: 100px 0;
    background: var(--bg-color);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0.3;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color));
    transition: left 0.5s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.1);
    border-color: var(--primary-color);
}

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

.icon-wrapper {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    text-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
}

.icon-wrapper img {
    width: 64px;
    height: 64px;
    filter: drop-shadow(0 0 8px var(--primary-color));
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #fff;
}

.feature-card p {
    color: var(--text-muted);
}

/* 页脚 */
footer {
    background: #05080f;
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-brand h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
}

.footer-brand p {
    color: var(--text-muted);
}

.footer-links ul {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-muted);
}

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

.footer-bottom {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
}

/* 响应式 */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 4rem;
    }
    .hero-text h1 {
        font-size: 2.8rem;
    }
    .navbar nav ul {
        display: none; /* 移动端可拓展汉堡菜单 */
    }
}