/* 全局样式 - 纹理底图风 */
:root {
    --bg-color: #f4f1ea;
    --text-main: #2c2c2c;
    --text-sub: #6b6b6b;
    --accent-color: #8c7b75;
    --card-bg: rgba(255, 255, 255, 0.75);
    --nav-bg: rgba(244, 241, 234, 0.85);
    --border-color: rgba(44, 44, 44, 0.1);
    --nav-height: 70px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-image: url('images/bg-texture.jpg');
    background-size: cover;
    background-attachment: fixed;
    color: var(--text-main);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 - 适配纹理背景 */
.navbar {
    height: var(--nav-height);
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-main);
}

.nav-links {
    list-style: none;
    display: flex;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-sub);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--accent-color);
}

/* Hero 区域 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-image: url('images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.greeting {
    display: block;
    font-size: 1.1rem;
    color: var(--text-sub);
    margin-bottom: 15px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.name {
    font-size: 4.5rem;
    margin-bottom: 15px;
    font-weight: 300;
    letter-spacing: -2px;
    color: var(--text-main);
}

.major {
    font-size: 1.1rem;
    color: var(--text-sub);
    margin-bottom: 40px;
    font-weight: 300;
}

/* 按钮样式 - 极简黑白 */
.btn {
    display: inline-block;
    padding: 12px 35px;
    border-radius: 0; /* 直角更极简 */
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: var(--text-main);
    color: #fff;
    border: 1px solid var(--text-main);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--text-main);
}

.btn-outline {
    border: 1px solid var(--text-main);
    color: var(--text-main);
    background: transparent;
}

.btn-outline:hover {
    background-color: var(--text-main);
    color: white;
}

/* 通用 Section */
.section {
    padding: 100px 0;
}

.bg-light {
    background-color: transparent;
}

.section-title {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 60px;
    font-weight: 400;
    letter-spacing: 1px;
}

.section-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background-color: var(--text-sub);
    margin: 15px auto 0;
}

/* 关于我卡片 - 半透明感 */
.about-card {
    background: transparent;
    backdrop-filter: none;
    padding: 50px;
    border: none;
    box-shadow: none;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-card p {
    margin-bottom: 15px;
}

.mbti {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-color);
    margin: 25px 0 20px;
}

.hobbies {
    margin: 20px 0 30px;
    font-size: 1rem;
    color: var(--text-sub);
}

.hobby-tag {
    display: inline-block;
    background: var(--accent-color);
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    margin: 0 5px;
    font-size: 0.9rem;
}

.btn-secondary {
    display: inline-block;
    margin-top: 15px;
    padding: 12px 35px;
    border-radius: 0;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 0.9rem;
    letter-spacing: 1px;
    background-color: var(--text-main);
    color: #fff;
    border: 1px solid var(--text-main);
}

.btn-secondary:hover {
    background-color: transparent;
    color: var(--text-main);
}

/* 作品集网格 */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    padding: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.05);
}

.card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.card-link:hover .card {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.05);
}

.card-image {
    height: 220px;
    background-image: url('images/bg-texture.jpg');
    background-size: cover;
    background-position: center;
    margin-bottom: 20px;
    opacity: 0.8;
    transition: opacity 0.3s;
    border: 1px solid var(--border-color);
}

.card:hover .card-image {
    opacity: 1;
}

.card h4 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.card p {
    color: var(--text-sub);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* 联系与页脚 */
.contact-section {
    text-align: center;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--text-main);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn-primary {
    width: 100%;
    padding: 15px 35px;
    font-size: 1rem;
}

.email-direct {
    font-size: 0.95rem;
    color: var(--text-sub);
}

.email-link {
    color: var(--text-main);
    text-decoration: none;
    border-bottom: 1px solid var(--text-main);
    transition: opacity 0.3s;
}

.email-link:hover {
    opacity: 0.7;
}

footer {
    text-align: center;
    padding: 40px 0;
    color: #555;
    font-size: 0.8rem;
    border-top: 1px solid var(--border-color);
}