/* style.css */

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f2f5;
    margin: 0;
    padding: 15px;
    padding-top: calc(15px + 60px);
    box-sizing: border-box;
    overflow: hidden;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    padding: 15px 0;
    box-sizing: border-box;
}

.header-content-wrapper {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header .left-section {
    display: flex;
    align-items: center;
}

.header .logo-container {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #333;
}

.header .logo {
    width: 28px;
    height: 28px;
    background-color: #e74c3c;
    border-radius: 50%;
    margin-right: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-weight: bold;
    font-size: 16px;
}

.header .site-title {
    font-size: 22px;
    font-weight: bold;
    color: #333;
    margin-left: 4px;
}

.header .nav-links {
    display: flex;
    gap: 15px;
}

.header .nav-links a {
    text-decoration: none;
    color: #555;
    font-size: 15px;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
}

/* Style for Font Awesome Icons within nav links */
.header .nav-links a i {
    font-size: 18px; /* Adjust icon size */
    margin-right: 6px; /* Space between icon and text */
}


.header .nav-links a:hover {
    background-color: #e0e0e0;
}

.main-content {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.04);
    padding: 20px;
    width: 100%;
    max-width: 800px;
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center; /* This centers content if it's smaller than main-content's height */
    align-items: center;
}

/* Search bar styles (仅在index.html中有效) */
.search-container {
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 400px;
}

.search-input-wrapper {
    display: flex;
    width: 100%;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.search-input {
    flex-grow: 1;
    border: none;
    padding: 8px 20px;
    font-size: 16px;
    outline: none;
}

.search-button {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

.search-button:hover {
    background-color: #c0392b;
}

.search-options {
    margin-top: 15px;
    display: flex;
    gap: 15px;
}

.search-options label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 15px;
    color: #555;
}

.search-options input[type="radio"] {
    margin-right: 6px;
    transform: scale(1.1);
}

/* Grid container styles (仅在index.html中有效) */
.grid-container {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.grid-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #555;
    font-size: 15px;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out, background-color 0.3s ease;
    padding: 12px;
    border-radius: 8px;
    width: 100%;
    box-sizing: border-box;
    min-width: 70px;
}

.grid-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.07);
    background-color: var(--hover-bg);
}

.grid-item .icon-box {
    width: 55px;
    height: 55px;
    background-color: #f8f8f8;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 8px;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04);
    overflow: hidden;
}

.grid-item .icon-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 50%;
}

.footer {
    color: #999;
    font-size: 13px;
    padding: 15px 0;
    width: 100%;
    max-width: 800px;
    text-align: center;
}

/* Page specific content styles (for test_link_one, two, three) */
.page-content {
    padding: 20px;
    text-align: left;
    line-height: 1.6;
    color: #333;
    width: 100%; /* Adjust to fill available width */
    max-width: 600px; /* Max width for content readability */
    margin: 0 auto; /* Center the page content */
    display: flex; /* Make it a flex container */
    flex-direction: column; /* Stack children vertically */
    align-items: center; /* Center children horizontally within page-content */
}

.page-content h2 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
}

/* New section for QR code inside page-content */
.qrcode-section-in-page {
    margin-top: 30px; /* Space from content above */
    padding-top: 20px; /* Padding for the top border */
    border-top: 1px solid #eee; /* The horizontal line */
    text-align: center;
    width: 100%; /* Take full width of parent (page-content) */
    max-width: 400px; /* Optional: limit max width of QR section for narrower layout */
}

.qrcode-section-in-page h3 {
    color: #333;
    font-size: 1.2em;
    margin-bottom: 10px;
}

.qrcode-section-in-page p {
    color: #666;
    font-size: 0.9em;
    line-height: 1.5;
    margin-bottom: 15px;
}

.qrcode-img {
    width: 150px; /* Set QR code image size */
    height: 150px;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 5px;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.08);
    object-fit: contain;
}


@media (max-width: 768px) {
    body {
        padding: 10px;
        padding-top: calc(10px + 60px);
    }

    .header {
        padding: 10px 0;
    }

    .header-content-wrapper {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        max-width: none;
        margin: 0;
    }

    .header .left-section {
        flex-direction: row;
        align-items: center;
        justify-content: center;
        width: 100%;
        margin-bottom: 10px;
    }

    .header .logo-container {
        flex-direction: row;
        align-items: center;
        margin-bottom: 0;
    }

    .header .site-title {
        margin-left: 5px;
        margin-top: 0;
        font-size: 20px;
    }

    .header .logo {
        margin-right: 5px;
    }

    /* 隐藏移动端导航链接 */
    .header .nav-links {
        display: none;
    }

    .main-content {
        padding: 10px;
        margin-left: auto;
        margin-right: auto;
        width: calc(100% - 16px);
        box-sizing: border-box;
        max-width: 800px;
    }
    .grid-container {
        grid-template-columns: repeat(4, 1fr);
        gap: 12px;
        justify-items: center;
    }
    .grid-item {
        font-size: 13px;
        padding: 8px;
        min-width: unset;
    }
    .grid-item .icon-box {
        width: 45px;
        height: 45px;
        margin-bottom: 6px;
    }
    .grid-item .icon-box img {
        width: 100%;
        height: 100%;
        object-fit: contain;
        border-radius: 50%;
    }

    .footer {
        padding: 10px 0;
        font-size: 11px;
    }

    /* Responsive styles for search bar */
    .search-input-wrapper {
        border-radius: 6px;
    }

    .search-button {
        padding: 10px 15px;
        border-radius: 0 6px 6px 0;
    }

    .search-input {
        padding: 6px 15px;
        font-size: 14px;
    }

    .search-options {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .search-options label {
        font-size: 14px;
    }

    /* Responsive styles for page-content */
    .page-content {
        padding: 10px;
        font-size: 14px;
    }

    .page-content h2 {
        font-size: 20px;
        margin-bottom: 15px;
    }

    /* Mobile QR code section adjustments */
    .qrcode-section-in-page {
        margin-top: 20px;
        padding-top: 15px;
    }
    .qrcode-section-in-page h3 {
        font-size: 1.1em;
    }
    .qrcode-section-in-page p {
        font-size: 0.85em;
    }
    .qrcode-img {
        width: 120px;
        height: 120px;
    }
}

.grid-item:hover {
    --hover-bg: var(--random-color);
}