/* ===== 基础重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

/* ===== CSS 变量 ===== */
:root {
    /* 配色 */
    --color-primary: #FFB7C5;
    --color-secondary: #98D8C8;
    --color-accent: #7ECFC0;
    --color-text: #4A4A4A;
    --color-text-light: #7A7A7A;
    --color-white: #FFFFFF;

    /* 渐变 */
    --gradient-bg: linear-gradient(135deg, #E8F5E9 0%, #FCE4EC 50%, #E3F2FD 100%);

    /* 字体 */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', sans-serif;

    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* 动画 */
    --transition-smooth: all 0.3s ease-in-out;
}

/* ===== Canvas 背景 ===== */
#sakura-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== 主体样式 ===== */
body {
    font-family: var(--font-main);
    color: var(--color-text);
    background: var(--gradient-bg);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

.content {
    position: relative;
    z-index: 1;
}

/* ===== Hero 区域 ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--spacing-md);
}

.hero-content {
    animation: fadeInUp 1.5s ease-out;
}

.avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    margin: 0 auto var(--spacing-md);
    box-shadow: 0 10px 40px rgba(255, 183, 197, 0.4);
    transition: var(--transition-smooth);
}

.avatar:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 50px rgba(255, 183, 197, 0.6);
}

.name {
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.1em;
}

.tagline {
    font-size: 1.1rem;
    color: var(--color-text-light);
    letter-spacing: 0.2em;
}

.scroll-hint {
    position: absolute;
    bottom: var(--spacing-md);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    display: block;
    width: 30px;
    height: 30px;
    border-right: 2px solid var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    transform: rotate(45deg);
    opacity: 0.6;
}

/* ===== 内容区域 ===== */
section {
    padding: var(--spacing-xl) var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 300;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    margin: var(--spacing-sm) auto 0;
}

/* ===== 关于我 ===== */
.about-content {
    text-align: center;
    font-size: 1.1rem;
    line-height: 2;
    color: var(--color-text-light);
}

.about-content p {
    margin-bottom: var(--spacing-sm);
}

/* ===== 技能展示 ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
}

.skill-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-smooth);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.skill-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(255, 183, 197, 0.2);
    background: rgba(255, 255, 255, 0.9);
}

.skill-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.skill-card h3 {
    font-weight: 400;
    color: var(--color-text);
}

/* ===== 联系方式 ===== */
.contact-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.contact-link {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.7);
    border-radius: 30px;
    text-decoration: none;
    color: var(--color-text);
    transition: var(--transition-smooth);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.contact-link:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 183, 197, 0.4);
}

/* ===== 页脚 ===== */
.footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* ===== 动画 ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .name {
        font-size: 2rem;
    }

    .tagline {
        font-size: 1rem;
    }

    section {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .section-title {
        font-size: 1.5rem;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .skill-card {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .avatar {
        width: 100px;
        height: 100px;
    }

    .name {
        font-size: 1.6rem;
    }

    .contact-links {
        flex-direction: column;
        align-items: center;
    }
}

/* ===== 风吹效果 ===== */
.wind-effect {
    animation: windShake 0.5s ease-in-out;
}

@keyframes windShake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}