/* shared_css: This CSS is shared across multiple components or pages. */
/* Base styles */
body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Roboto', sans-serif;
    color: #003366;
    margin-top: 1em;
    margin-bottom: 0.5em;
    line-height: 1.2;
}

h1 {
    font-size: 2.8em;
}
h2 {
    font-size: 2.2em;
}
h3 {
    font-size: 1.8em;
}
p {
    margin-bottom: 1em;
}

a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s ease;
}
a:hover {
    color: #0056b3;
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: #007bff;
    color: #fff;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #0056b3;
}

.btn-secondary {
    background-color: #6c757d;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

/* Forms */
input[type="text"],
input[type="email"],
input[type="password"],
textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    box-sizing: border-box;
}

textarea {
    resize: vertical;
    min-height: 100px;
}

/* Utility classes */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.clearfix::after {
    content: "";
    clear: both;
    display: table;
}

/* Spacing */
.mt-1 { margin-top: 10px; }
.mb-1 { margin-bottom: 10px; }
.py-2 { padding-top: 20px; padding-bottom: 20px; }

/* Responsive adjustments */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    h1 {
        font-size: 2.2em;
    }
    h2 {
        font-size: 1.8em;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8em;
    }
    h2 {
        font-size: 1.5em;
    }
    .btn {
        padding: 8px 15px;
        font-size: 0.9em;
    }
}

/* Additional common styles */
.card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    padding: 25px;
    margin-bottom: 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: #007bff;
    margin: 15px auto 0;
    border-radius: 2px;
}

.icon-list ul {
    list-style: none;
    padding: 0;
}

.icon-list ul li {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.icon-list ul li i {
    color: #007bff;
    margin-right: 10px;
    font-size: 1.2em;
}

/* Flexbox utilities */
.d-flex {
    display: flex;
}

.justify-content-center {
    justify-content: center;
}

.align-items-center {
    align-items: center;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-20 {
    gap: 20px;
}

/* Grid layout for sections */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

/* Image styles */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Accessibility focus styles */
:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* Transition effects for common elements */
.transition-ease {
    transition: all 0.3s ease-in-out;
}

/* Placeholder for more specific component styles */
/* .hero-section { ... } */
/* .feature-block { ... } */
/* .testimonial-carousel { ... } */
/* 移动端内容区防溢出（系统追加，请勿删除） */
@media (max-width: 768px) {
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}