/* 全局变量 */
:root {
    --primary-color: #00d4ff;
    --secondary-color: #ff00ff;
    --accent-color: #00ff88;
    --warning-color: #ffd700;
    --dark-bg: #0a0a0a;
    --darker-bg: #050505;
    --card-bg: rgba(20, 20, 20, 0.8);
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border-glow: rgba(0, 212, 255, 0.3);
    --gradient-primary: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    --gradient-secondary: linear-gradient(45deg, var(--secondary-color), var(--warning-color));
}

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Exo 2', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
    position: relative;
}

/* 加载动画 */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader-content {
    text-align: center;
}

.loader-hologram {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    margin: 0 auto 1rem;
    animation: loaderRotate 2s linear infinite;
    position: relative;
}

.loader-hologram::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: loaderPulse 1s ease-in-out infinite;
}

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

@keyframes loaderPulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.2); opacity: 0.1; }
}

.loader-text {
    color: var(--primary-color);
    font-family: 'Orbitron', monospace;
    font-size: 1.2rem;
    animation: loaderText 1.5s ease-in-out infinite;
}

@keyframes loaderText {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* 背景音乐控制 */
.music-control {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1001;
    cursor: pointer;
    padding: 10px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid var(--primary-color);
    transition: all 0.3s ease;
}

.music-control:hover {
    transform: scale(1.1);
    box-shadow: 0 0 20px var(--border-glow);
}

.music-icon {
    font-size: 1.5rem;
    animation: musicPulse 1s ease-in-out infinite;
}

@keyframes musicPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.music-waves {
    display: flex;
    gap: 2px;
    margin-top: 5px;
}

.music-waves span {
    width: 3px;
    height: 10px;
    background: var(--primary-color);
    animation: wave 1s ease-in-out infinite;
}

.music-waves span:nth-child(2) { animation-delay: 0.1s; }
.music-waves span:nth-child(3) { animation-delay: 0.2s; }
.music-waves span:nth-child(4) { animation-delay: 0.3s; }

@keyframes wave {
    0%, 100% { height: 10px; }
    50% { height: 20px; }
}

/* 背景动画 */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 0, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(0, 255, 136, 0.1) 0%, transparent 50%);
    animation: particleFloat 20s ease-in-out infinite;
}

@keyframes particleFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(120deg); }
    66% { transform: translateY(20px) rotate(240deg); }
}

.grid-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 30s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.neural-network {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0.1;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-glow);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    position: relative;
}

.logo-text {
    font-family: 'Orbitron', monospace;
    font-weight: 900;
    font-size: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px var(--primary-color);
}

.logo-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    filter: blur(20px);
    opacity: 0.5;
    animation: logoPulse 2s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: left 0.3s ease;
    z-index: -1;
}

.nav-link:hover {
    color: var(--dark-bg);
    border-color: var(--primary-color);
}

.nav-link:hover::before {
    left: 0;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

/* 主页面 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    padding: 0 2rem;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    position: relative;
    margin-bottom: 1rem;
}

.badge-text {
    background: var(--gradient-secondary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.badge-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-secondary);
    border-radius: 20px;
    filter: blur(10px);
    opacity: 0.5;
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-title {
    font-family: 'Orbitron', monospace;
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.title-main {
    display: block;
    position: relative;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlow 3s ease-in-out infinite;
}

.title-main::before {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: blur(3px);
    opacity: 0.5;
    animation: titleGlitch 2s ease-in-out infinite;
}

@keyframes titleGlow {
    0%, 100% { filter: brightness(1) blur(0px); }
    50% { filter: brightness(1.2) blur(1px); }
}

@keyframes titleGlitch {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
}

.title-sub {
    display: block;
    font-size: 2rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--dark-bg);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.7);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    box-shadow: 0 0 30px var(--border-glow);
}

.btn-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    filter: blur(20px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn:hover .btn-glow {
    opacity: 0.5;
}

/* 全息图效果 */
.hologram-container {
    position: relative;
    width: 400px;
    height: 400px;
    margin: 0 auto;
}

.hologram-main {
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.8;
    animation: hologramRotate 10s linear infinite;
    position: relative;
}

.hologram-main::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: hologramPulse 2s ease-in-out infinite;
}

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

@keyframes hologramPulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.1); opacity: 0.1; }
}

.hologram-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.5;
}

.ring-1 {
    width: 120%;
    height: 120%;
    animation: ringExpand 3s ease-out infinite;
}

.ring-2 {
    width: 140%;
    height: 140%;
    animation: ringExpand 3s ease-out infinite 1s;
}

.ring-3 {
    width: 160%;
    height: 160%;
    animation: ringExpand 3s ease-out infinite 2s;
}

@keyframes ringExpand {
    0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0.8; }
    100% { transform: translate(-50%, -50%) scale(1); opacity: 0; }
}

.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    transform: rotate(45deg);
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(10px); }
}

/* 通用容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-family: 'Orbitron', monospace;
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.title-glitch {
    position: relative;
    color: var(--primary-color);
    text-shadow: 0 0 20px var(--primary-color);
}

.title-glitch::before,
.title-glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.title-glitch::before {
    animation: glitch-1 0.5s infinite;
    color: var(--secondary-color);
    z-index: -1;
}

.title-glitch::after {
    animation: glitch-2 0.5s infinite;
    color: var(--accent-color);
    z-index: -2;
}

@keyframes glitch-1 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
}

@keyframes glitch-2 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(2px, -2px); }
    40% { transform: translate(2px, 2px); }
    60% { transform: translate(-2px, 2px); }
    80% { transform: translate(-2px, -2px); }
}

/* 关于部分 */
.about {
    padding: 8rem 0;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.about-card {
    background: var(--card-bg);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.about-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.3);
}

.about-card:hover::before {
    opacity: 0.1;
}

.card-icon-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 1.5rem;
}

.card-icon {
    font-size: 4rem;
    position: relative;
    z-index: 1;
}

.icon-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    filter: blur(20px);
    opacity: 0.5;
    animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
}

.about-card h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.card-tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.tech-item {
    background: rgba(0, 212, 255, 0.2);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

/* 技能部分 */
.skills {
    padding: 8rem 0;
}

.skills-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.skill-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.skill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.skill-name {
    font-weight: 600;
    color: var(--text-primary);
}

.skill-percent {
    color: var(--primary-color);
    font-weight: 600;
}

.skill-bar {
    position: relative;
    height: 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 5px;
    width: 0%;
    transition: width 2s ease;
    position: relative;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: skillShine 3s ease-in-out infinite;
}

@keyframes skillShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.skill-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    filter: blur(10px);
    opacity: 0.3;
}

.skills-showcase {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.showcase-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    text-align: center;
    transition: all 0.3s ease;
}

.showcase-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.showcase-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.showcase-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.showcase-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 项目部分 */
.projects {
    padding: 8rem 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.3);
}

.project-image {
    height: 250px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
                            justify-content: center;
                            position: relative;
                            overflow: hidden;
}

.project-preview {
    text-align: center;
    z-index: 1;
}

.code-line {
    display: block;
    color: white;
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    margin: 0.5rem 0;
    opacity: 0.9;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    padding: 0.8rem 1.5rem;
    background: var(--gradient-primary);
    color: var(--dark-bg);
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.project-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.5);
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tech-tag {
    background: rgba(0, 212, 255, 0.2);
    color: var(--primary-color);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

/* 联系部分 */
.contact {
    padding: 8rem 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: all 0.3s ease;
}

.contact-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 212, 255, 0.2);
}

.contact-icon-wrapper {
    position: relative;
    flex-shrink: 0;
}

.contact-icon {
    font-size: 2.5rem;
    position: relative;
    z-index: 1;
}

.contact-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    filter: blur(15px);
    opacity: 0.5;
}

.contact-details h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.contact-value {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.contact-btn {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.contact-btn:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    box-shadow: 0 0 15px var(--border-glow);
}

.contact-form-container {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-secondary);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 20px var(--border-glow);
}

.input-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 8px;
    filter: blur(10px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.form-input:focus ~ .input-glow,
.form-textarea:focus ~ .input-glow {
    opacity: 0.3;
}

.form-submit {
    width: 100%;
    margin-top: 1rem;
}

/* 页脚 */
.footer {
    background: var(--darker-bg);
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(0, 212, 255, 0.2);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-info {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo .logo-text {
    font-size: 1.2rem;
}

.footer-description {
    color: var(--text-secondary);
    margin: 1rem 0;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 5px;
    transition: all 0.3s ease;
}

.social-link:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 10px var(--border-glow);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
}

.icp-container {
    margin-top: 1rem;
}

.icp-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 5px;
    transition: all 0.3s ease;
}

.icp-link:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 15px var(--border-glow);
}

.icp-icon {
    font-size: 1.2rem;
}

.icp-number {
    font-family: 'Orbitron', monospace;
    font-size: 0.9rem;
}

/* 浮动按钮 */
.floating-buttons {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 999;
}

.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: none;
    color: var(--dark-bg);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.4);
}

.float-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.6);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .skills-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .title-sub {
        font-size: 1.5rem;
    }
    
    .hologram-container {
        width: 300px;
        height: 300px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-info {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .floating-buttons {
        bottom: 1rem;
        right: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .contact-card {
        flex-direction: column;
        text-align: center;
    }
}

/* 动画延迟类 */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* 粒子动画 */
.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

/* 响应式字体 */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 12px;
    }
}