:root {
    --bg-color: #020205; 
    --text-main: #ffffff;
    --accent-blue: #0077ff;
    --glass-bg: rgba(20, 20, 25, 0.4); 
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, sans-serif;
    margin: 0;
    overflow-x: hidden;
    line-height: 1.6;
    letter-spacing: 0.05em;
}

#space-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1; 
    pointer-events: none;
}

#hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.name-title {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: 0.15em;
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.15); 
}

.personality-tags {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    justify-content: center;
}

.tag {
    font-size: 0.85rem;
    padding: 6px 18px;
    border-radius: 30px; 
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #e2e8f0;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
}

.tag:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.5);
}

.content-section {
    width: 85%;
    max-width: 1100px;
    margin: 0 auto 80px auto;
    position: relative;
    z-index: 10;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px); 
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.08); 
    border-radius: 16px;
    padding: 35px;
    transition: all 0.4s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
}

.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
    background: rgba(30, 30, 35, 0.5);
}

.glass-card h3 {
    margin-top: 0;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: #ffffff;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.desc {
    color: #a0aabf;
    font-size: 0.95rem;
    line-height: 1.8;
}

.highlight {
    color: var(--accent-blue);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.two-col-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.project-content {
    flex-grow: 1; 
}

.project-title {
    color: #fff;
    font-size: 1.1rem;
    margin: 0 0 10px 0;
}

.tech-tags {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.tech-tags span {
    font-size: 0.75rem;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    color: #a0aabf;
}

.jump-btn {
    display: block;
    text-align: center;
    margin-top: 25px;
    padding: 12px 0;
    background: rgba(0, 119, 255, 0.1);
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    text-decoration: none !important; 
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.jump-btn:hover {
    background: var(--accent-blue);
    color: #fff;
    box-shadow: 0 0 20px rgba(0, 119, 255, 0.4);
}

.three-col-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.menu-card {
    padding: 25px;
}

.blog-links, .btn-row {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn-row {
    flex-direction: row;
    justify-content: space-between;
}

.btn-link {
    display: block;
    text-align: center;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #e2e8f0;
    text-decoration: none !important;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    flex: 1; 
}

.btn-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.3);
}

.divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 15px 0;
}

.contact-info p {
    margin: 8px 0;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.85); 
    font-family: monospace;
}

.contact-info a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none !important;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: var(--accent-blue);
}

/* === 留言板展示与表单区 === */
.message-display {
    height: 100px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 15px;
    overflow-y: auto;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    line-height: 1.5;
}

.message-display p {
    margin: 0 0 8px 0;
    word-wrap: break-word; 
}

.message-display::-webkit-scrollbar {
    width: 6px;
}
.message-display::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.mini-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mini-form input, .mini-form textarea {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #fff;
    padding: 10px;
    outline: none;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.mini-form input:focus, .mini-form textarea:focus {
    border-color: var(--accent-blue);
}

.mini-form button {
    background: rgba(0, 119, 255, 0.1);
    color: var(--accent-blue);
    border: 1px solid var(--accent-blue);
    padding: 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
}

.mini-form button:hover {
    background: var(--accent-blue);
    color: #fff;
}

@media (max-width: 900px) {
    .two-col-layout, .three-col-row {
        grid-template-columns: 1fr;
    }
}

footer {
    text-align: center;
    padding: 40px 0;
    color: #475569;
    font-size: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}