* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}
body {
    background-color: #f5f7fa;
    padding: 0;
    min-width: 1200px;
}
.navbar {
    background-color: #28a745;
    color: #fff;
    padding: 15px 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 999;
}
.navbar-container {
    max-width: 1920px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.navbar-logo {
    font-size: 20px;
    font-weight: 700;
}
.navbar-menu {
    display: flex;
    gap: 30px;
}
.navbar-menu a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    transition: opacity 0.3s;
}
.navbar-menu a:hover {
    opacity: 0.8;
    text-decoration: underline;
}
.footer {
    background-color: #333;
    color: #ccc;
    padding: 20px 15px;
    margin-top: 40px;
}
.footer-container {
    max-width: 1920px;
    margin: 0 auto;
}
.footer-copyright {
    text-align: center;
    font-size: 12px;
    color: #999;
    line-height: 1.6;
}
.page-container {
    width: 98%;
    max-width: 1920px;
    margin: 0 auto;
    padding: 0 15px;
}
.container-inner {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    padding: 30px;
    margin-top: 20px;
    margin-bottom: 20px;
}
.module {
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-bottom: 25px;
}
.title-btn-container {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
}
.title-btn-container h1 {
    margin: 0;
    color: #2c3e50;
    font-size: 20px;
    padding-left: 10px;
    border-left: 4px solid #28a745;
}
.api-doc-btn, .card-link-btn {
    display: inline-block;
    padding: 10px 20px;
    background: #28a745;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-size: 14px;
    transition: background-color 0.2s;
    margin-right: 5px;
}
.api-doc-btn:hover, .card-link-btn:hover {
    background: #28a745;
}
.search-box, .search-form {
    margin: 20px 0;
}
.form-group {
    margin-bottom: 15px;
}
.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #2c3e50;
    font-weight: 600;
    font-size: 14px;
}
.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #e5e9f0;
    border-radius: 4px;
    font-size: 14px;
    color: #333;
}
.form-control:focus {
    outline: none;
    border-color: #28a745;
    box-shadow: 0 0 0 2px rgba(40, 167, 69, 0.2);
}
.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #28a745;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}
.btn:hover {
    background-color: #28a745;
}
.result-area {
    margin-top: 25px;
}
.result-area h3 {
    font-size: 16px;
    color: #28a745;
    margin-bottom: 15px;
    font-weight: 600;
}
.ip-card {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e5e9f0;
}
.ip-address {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #2c3e50;
}
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 20px;
}
.info-item {
    padding: 10px;
    background: #fff;
    border-radius: 6px;
    border: 1px solid #e5e9f0;
}
.info-label {
    font-weight: 600;
    color: #2c3e50;
    margin-right: 5px;
}
.info-value {
    color: #555;
}
.result-table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.result-table th, .result-table td {
    border: 1px solid #eaeaea;
    padding: 12px 10px;
    text-align: center;
    font-size: 14px;
}
.result-table th {
    background: #f7f8fa;
    font-weight: 600;
    color: #2c3e50;
}
.text-success {
    color: #00a800 !important;
    font-weight: 600;
}
.text-gray {
    color: #888;
}
.text-error {
    color: #dc3545;
    padding: 10px;
}
.text-warning {
    color: #ffc107;
    padding: 10px;
}
.info-section {
    background: #e8f4f8;
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
    border-left: 4px solid #28a745;
}
.info-section ul {
    padding-left: 20px;
    margin-bottom: 10px;
}
.info-section li {
    margin: 8px 0;
    color: #333;
}
.info-section p {
    color: #64748b;
    line-height: 1.6;
}
.info-section h2 {
    font-size: 15px !important;
}
.info-section li, .info-section p {
    font-size: 14px !important;
}
.history-display-area {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e5e9f0;
    margin-top: 20px;
}
.history-display-area h4 {
    font-size: 15px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}
.history-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-height: 150px;
    overflow-y: auto;
    padding-right: 5px;
}
.history-item {
    padding: 6px 12px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
    color: #333;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    text-decoration: none;
}
.history-item:hover {
    background: #e8f4f8;
    border-color: #28a745;
    color: #28a745;
}
.history-ip {
    font-weight: 600;
    color: #28a745;
}
.history-location {
    color: #666;
    margin-left: 5px;
}
.history-empty {
    color: #999;
    font-size: 13px;
    padding: 10px 0;
}
.sub-navbar {
    background-color: #208838;
    color: #fff;
    padding: 10px 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 15px;
}
.sub-navbar-container {
    max-width: 1920px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 25px;
    flex-wrap: wrap;
}
.sub-navbar-menu a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    padding: 5px 10px;
    border-radius: 4px;
    transition: all 0.2s;
}
.sub-navbar-menu a:hover,
.sub-navbar-menu a.active {
    background-color: rgba(255,255,255,0.2);
    text-decoration: none;
}
.tool-nav-card {
    margin: 20px auto;
    padding: 15px;
    width: 100%;
    max-width: 1920px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    border: 1px solid #eee;
    box-sizing: border-box;
}
.tool-nav-card h3 {
    margin: 0 0 10px 0;
    font-size: 16px;
    color: #333;
    font-weight: 600;
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
}
.input-group {
    display: flex;
    align-items: center;
    width: 100%;
    gap: 8px;
    border: none !important;
}
.input-group input {
    flex: 1;
    border: 1px solid #2ecc71 !important;
    outline: none;
    padding: 12px 15px;
    font-size: 14px;
    border-radius: 4px !important;
}
.btn-detect {
    background-color: #28a745;
    color: #fff;
    border: none;
    padding: 12px 25px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s;
    border-radius: 4px;
}
.btn-detect:hover {
    background-color: #27ae60;
}
.btn-reset {
    background-color: #95a5a6;
    color: #fff;
    border: none;
    padding: 12px 25px;
    font-size: 14px;
    cursor: pointer;
    margin-left: 0 !important;
    transition: background-color 0.2s;
    border-radius: 4px;
}
.btn-reset:hover {
    background-color: #7f8c8d;
}
.btn-group {
    display: flex;
    gap: 8px;
    align-items: center;
}
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}
.text-muted.mb-20 {
    font-size: 14px !important;
    color: inherit !important;
}

@media only screen and (max-width: 767px) {
    body {
        min-width: unset;
        width: 100%;
        overflow-x: hidden;
    }
    .page-container, .container {
        width: 100%;
        padding: 0 10px;
    }
    .container-inner {
        padding: 15px;
        margin: 10px auto;
        border-radius: 8px;
    }
    .navbar {
        padding: 10px 15px;
    }
    .navbar-container {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    .navbar-menu {
        gap: 15px;
        flex-wrap: wrap;
        width: 100%;
    }
    .navbar-menu a {
        font-size: 14px;
    }
    .module {
        padding: 15px;
        margin-bottom: 15px;
    }
    .title-btn-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .card-link-btn {
        width: 100%;
        margin-bottom: 5px;
        text-align: center;
    }
    .info-grid {
        grid-template-columns: 1fr;
    }
    .btn {
        width: 100%;
        padding: 12px 20px;
        font-size: 15px;
    }
    .history-items {
        flex-direction: row;
    }
    /* ========== 仅优化结果区域手机自适应 ========== */
    .result-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 5px;
    }
    .result-table th, .result-table td {
        min-width: 100px;
        white-space: nowrap;
        padding: 8px 6px;
        font-size: 12px;
    }
    .result-area .text-error,
    .result-area .text-warning {
        font-size: 13px;
        padding: 8px;
        word-break: break-all;
    }
    /* ============================================ */
    .info-section {
        padding: 12px;
    }
    .info-section li {
        font-size: 13px;
    }
    .info-section p {
        font-size: 13px;
    }
    .input-group {
        flex-wrap: wrap;
        gap: 8px;
        border: none !important;
    }
    .input-group input {
        width: 100%;
        border: 1px solid #2ecc71 !important;
        border-radius: 4px !important;
    }
    .btn-group {
        width: 100%;
        display: flex;
        gap: 8px;
    }
    .btn-detect, .btn-reset {
        flex: 1;
        margin-left: 0 !important;
        padding: 12px 0;
        text-align: center;
        border-radius: 4px;
    }
    .sub-navbar {
        padding: 8px 15px;
    }
    .sub-navbar-container {
        gap: 10px;
        justify-content: flex-start;
    }
    .sub-navbar-menu a {
        font-size: 12px;
        padding: 4px 8px;
    }
}

.btn-detect:disabled{
    opacity: 0.6;
    cursor: not‑allowed;
    filter: grayscale(100%);
}