* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "微软雅黑", "Microsoft YaHei", sans-serif;
}
:root {
    --main: #094074;
    --dark: #052b4e;
    --blue: #165DFF;
    --gray-bg: #f4f7fa;
    --text: #333;
    --light-text: #666;
}
a {
    text-decoration: none;
    color: inherit;
}
ul {
    list-style: none;
}
.container {
    width: 92%;
    max-width: 1100px;
    margin: 0 auto;
}
.section {
    padding: 60px 0;
}
.bg-gray {
    background-color: var(--gray-bg);
}
.title {
    font-size: 26px;
    color: var(--dark);
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}
.title::after {
    content: "";
    width: 50px;
    height: 3px;
    background: var(--blue);
    position: absolute;
    left: 50%;
    bottom: -12px;
    transform: translateX(-50%);
}
.navbar {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 999;
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 65px;
}
.logo {
    font-size: 22px;
    font-weight: bold;
    color: var(--main);
}
.nav-menu {
    display: flex;
    gap: 26px;
    font-size: 15px;
}
.nav-menu a:hover {
    color: var(--blue);
    transition: 0.25s;
}
.hero {
    background: linear-gradient(135deg,var(--main),var(--dark));
    color: #fff;
    padding: 90px 0;
    text-align: center;
}
.hero-text h1 {
    font-size: 42px;
    margin-bottom: 12px;
}
.hero-text h2 {
    font-size: 20px;
    font-weight: 400;
    margin-bottom: 16px;
    opacity: 0.92;
}
.hero-text p {
    font-size: 16px;
    margin-bottom: 30px;
    opacity: 0.88;
}
.down-resume {
    display: inline-block;
    padding: 12px 32px;
    background: #fff;
    color: var(--main);
    border-radius: 30px;
    font-weight: bold;
    transition: 0.3s;
}
.down-resume:hover {
    background: var(--dark);
    color: #fff;
}
.about-text {
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.9;
    color: var(--light-text);
    font-size: 16px;
    text-align: center;
}
.about-text p {
    margin-bottom: 15px;
}
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.skill-card {
    background: #fff;
    padding: 30px 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}
.skill-card i {
    font-size: 36px;
    color: var(--blue);
    margin-bottom: 16px;
}
.skill-card h3 {
    margin-bottom: 10px;
    color: var(--dark);
}
.skill-card p {
    color: var(--light-text);
    font-size: 15px;
    line-height: 1.7;
}
.exp-item,.pro-item {
    background: #fff;
    padding: 26px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}
.exp-item h3,.pro-item h3 {
    color: var(--dark);
    margin-bottom: 8px;
}
.exp-item span {
    display: inline-block;
    color: var(--blue);
    font-size: 14px;
    margin-bottom: 12px;
}
.exp-item p,.pro-item p {
    color: var(--light-text);
    line-height: 1.8;
}
.cert-box {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}
.cert-tag {
    background: #fff;
    padding: 10px 20px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    color: var(--text);
}
.cert-tag i {
    color: var(--blue);
    margin-right: 6px;
}
.contact-box {
    text-align: center;
    line-height: 2.2;
    font-size: 17px;
    color: var(--text);
}
.contact-box i {
    color: var(--blue);
    width: 25px;
}
.contact-box a {
    color: var(--blue);
}
.footer {
    background: var(--dark);
    color: #ccc;
    text-align: center;
    padding: 30px 0;
    font-size: 14px;
}
.footer a {
    color: #69b1ff;
}
.footer .beian {
    margin-top: 10px;
    font-size: 13px;
}
.footer .beian a {
    color: #69b1ff;
}
@media (max-width: 768px) {
    .nav-menu {
        gap: 12px;
        font-size: 13px;
    }
    .hero-text h1 {
        font-size: 32px;
    }
    .section {
        padding: 40px 0;
    }
}