* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}
body {
    background-color: #f7f9fc;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 60px 20px;
    color: #111;
}
/* 顶部logo区域 */
.logo-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
}
.logo-wrap img {
    height: 64px;
    width: auto;
    object-fit: contain;
}
.logo-text h1 {
    font-size: 32px;
    color: #111;
    font-weight: 600;
    line-height: 1;
}
.logo-text p {
    font-size: 14px;
    color: #666;
    text-align: left;
}
/* 主卡片 */
.card {
    background: #fff;
    width: 100%;
    max-width: 760px;
    padding: 48px 36px;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    text-align: center;
}
.card-title h2 {
    font-size: 28px;
    color: #111;
    margin-bottom: 8px;
}
.card-title p {
    color: #666;
    font-size: 14px;
    margin-bottom: 36px;
}
/* 输入框行 */
.search-row {
    display: flex;
    gap: 0;
    margin-bottom: 32px;
}
.search-input {
    flex: 1;
    padding: 14px 16px;
    border: 1px solid #e2e8f0;
    border-right: none;
    border-radius: 6px 0 0 6px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s;
}
.search-input:focus {
    border-color: #307aff;
}
.search-btn {
    background-color: #1677ff;
    color: #fff;
    border: none;
    padding: 0 24px;
    border-radius: 0 6px 6px 0;
    font-size: 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}
.search-btn:hover {
    background-color: #0968e6;
}
/* 表单 */
.form-row {
    margin-bottom: 20px;
    text-align: left;
}
.form-row label {
    display: block;
    font-size: 14px;
    color: #444;
    margin-bottom: 8px;
}
.form-control {
    width: 100%;
    padding: 13px 15px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s;
    background: #fff;
}
.form-control:focus {
    border-color: #1677ff;
}
.help-block {
    display: block;
    color: #999;
    font-size: 12px;
    margin-top: 6px;
}
.section-title {
    font-size: 22px;
    color: #111;
    margin-bottom: 24px;
    text-align: center;
}
.block-card {
    text-align: left;
    background: #fafbfc;
    border: 1px solid #eef2f7;
    border-radius: 8px;
    padding: 22px 24px;
    margin-top: 24px;
    color: #555;
    line-height: 1.9;
    font-size: 14px;
}
.block-card h5 {
    font-size: 16px;
    color: #1677ff;
    margin: 14px 0 6px;
}
.block-card h5:first-child {
    margin-top: 0;
}
.block-card a {
    color: #1677ff;
}
.submit-btn {
    background-color: #1677ff;
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 6px;
    font-size: 15px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.submit-btn:hover {
    background-color: #0968e6;
}
.form-actions {
    text-align: center;
    margin-top: 28px;
}
.vercode-row {
    display: flex;
    gap: 10px;
}
.vercode-row .form-control {
    flex: 1;
}
.vercode-btn {
    flex: 0 0 auto;
    background: #f2f7ff;
    color: #1677ff;
    border: 1px solid #d6e4ff;
    border-radius: 6px;
    padding: 0 18px;
    font-size: 14px;
    cursor: pointer;
    white-space: nowrap;
}
.vercode-btn:hover {
    background: #e6f0ff;
}
.vercode-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
/* 导航标签 */
.nav-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 28px;
}
.nav-tabs a {
    padding: 9px 18px;
    border-radius: 6px;
    background: #eef2f7;
    color: #555;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}
.nav-tabs a:hover {
    background: #d6e4ff;
    color: #1677ff;
}
.nav-tabs a.active {
    background: #1677ff;
    color: #fff;
}
/* 功能按钮组 */
.btn-group {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}
.func-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: #f2f7ff;
    border: none;
    border-radius: 6px;
    color: #1677ff;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s;
}
.func-btn:hover {
    background: #e6f0ff;
}
/* 底部页脚 */
footer {
    margin-top: 60px;
    text-align: center;
    color: #888;
    font-size: 13px;
}
.footer-links {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-bottom: 10px;
    flex-wrap: wrap;
}
.footer-links a {
    color: #888;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
}
.footer-links a:hover {
    color: #1677ff;
}
.result-box {
    margin-top: 24px;
    padding: 16px;
    border-radius: 8px;
    font-size: 14px;
    text-align: left;
    display: none;
}
.result-box.ok {
    background: #f0fff4;
    border: 1px solid #b7ebc8;
    color: #1a7f37;
}
.result-box.no {
    background: #fff1f0;
    border: 1px solid #ffccc7;
    color: #cf1322;
}
@media (max-width: 600px) {
    body {
        padding: 36px 14px;
    }
    .card {
        padding: 32px 18px;
    }
    .search-row {
        flex-direction: column;
    }
    .search-input {
        border-right: 1px solid #e2e8f0;
        border-radius: 6px 6px 0 0;
    }
    .search-btn {
        border-radius: 0 0 6px 6px;
        padding: 12px;
        justify-content: center;
    }
}