/* 变量定义保持不变 */
:root {
    --gold: #d4af37;
    --dark-bg: #121212;
    --card-bg: #1e1e1e;
    --text-main: #e0e0e0;
    --text-dim: #999;
    --border-color: #333;
}

body {
    background-color: var(--dark-bg);
    color: var(--text-main);
    font-family: "Georgia", "Source Han Serif SC", "Songti SC", serif;
    margin: 0;
    display: flex;
    justify-content: center;
    padding: 60px 20px;
    line-height: 1.8;
}

.profile-card {
    background-color: var(--card-bg);
    max-width: 800px;
    width: 100%;
    padding: 60px;
    border: 1px solid var(--border-color);
    box-shadow: 0 40px 100px rgba(0,0,0,0.6);
    position: relative;
}

/* 装饰性金边 */
.profile-card::after {
    content: "";
    position: absolute;
    top: 20px; left: 20px; right: 20px; bottom: 20px;
    border: 1px solid var(--gold);
    opacity: 0.15;
    pointer-events: none;
}

/* --- 新增：图片相关样式 --- */

/* 头像容器 */
.profile-photo-wrapper {
    text-align: center;
    margin-bottom: 25px;
}

.profile-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--gold);
    padding: 5px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    background-color: var(--card-bg);
}

/* 证书容器 */
.certificate-wrapper {
    margin-top: 30px;
    text-align: center;
    border: 1px solid var(--border-color);
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
}

.certificate-img {
    max-width: 100%;
    height: auto;
    filter: sepia(20%) contrast(110%); /* 轻微复古滤镜 */
    border: 1px solid rgba(212, 175, 55, 0.3);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.img-caption {
    font-size: 0.8rem;
    color: var(--gold);
    margin-top: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0.8;
}

/* --- 原有样式保持 --- */

header {
    text-align: center;
    margin-bottom: 50px;
}

.main-title {
    font-size: 2.8rem;
    color: var(--gold);
    margin: 0;
    letter-spacing: 6px;
    font-weight: 300;
}

.honorary-titles {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-top: 10px;
}

.section-label {
    font-size: 1.1rem;
    color: var(--gold);
    letter-spacing: 4px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    margin-bottom: 25px;
}

ul { list-style: none; padding: 0; }
li { margin-bottom: 12px; position: relative; padding-left: 25px; }
li::before { content: "◈"; color: var(--gold); position: absolute; left: 0; font-size: 0.7rem; }

.skills-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; }

footer {
    text-align: center;
    margin-top: 60px;
    font-size: 0.7rem;
    color: #444;
    letter-spacing: 4px;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
}

@media (max-width: 650px) {
    .skills-grid { grid-template-columns: 1fr; }
    .main-title { font-size: 1.8rem; }
    .profile-card { padding: 40px 20px; }
}