/* =========================================================
   FigEdu · 留学工具（tools.html）专属样式
   ========================================================= */

/* —— 工具门户页 Hero —— */
.tools-hero {
    background: linear-gradient(180deg, #F4F6F9 0%, var(--bg-white) 100%);
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
}
.tools-hero .eyebrow {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-gray);
    font-weight: 600;
    margin-bottom: 12px;
}
.tools-hero h1 {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1.25;
    margin-bottom: var(--spacing-sm);
}
.tools-hero .lede {
    font-size: 1.05rem;
    color: var(--text-dark);
    line-height: 1.7;
    max-width: 720px;
    margin-bottom: var(--spacing-md);
}

/* —— 工具网格 —— */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xxl);
}

.tool-card {
    background: white;
    border: 1px solid #ECEEF1;
    border-radius: 12px;
    padding: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.tool-card:hover {
    box-shadow: 0 12px 32px rgba(37, 58, 133, 0.1);
    transform: translateY(-4px);
    border-color: var(--primary-blue);
}

.tool-card .icon-box {
    width: 64px;
    height: 64px;
    background: rgba(37, 58, 133, 0.05);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 2rem;
    transition: all 0.3s ease;
}

.tool-card:hover .icon-box {
    background: var(--primary-blue);
    color: white;
}

.tool-card .content {
    flex: 1;
}

.tool-card h3 {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 700;
}

.tool-card p {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.5;
}

.tool-card .arrow {
    position: absolute;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-blue);
    opacity: 0;
    transition: all 0.3s ease;
}

.tool-card:hover .arrow {
    opacity: 1;
    right: 16px;
}

/* —— 工具子页面通用容器 —— */
.tool-container {
    background: white;
    border: 1px solid #ECEEF1;
    border-radius: 12px;
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.tool-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--primary-blue);
}

.tool-header h1, .tool-header h2 {
    color: var(--primary-blue);
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.tool-header .breadcrumb {
    font-size: 0.9rem;
    color: var(--text-gray);
}
.tool-header .breadcrumb a {
    color: var(--primary-blue);
    text-decoration: none;
}

/* —— 通用子页面组件 —— */
.error-msg {
    color: #B04848;
    font-size: 0.85rem;
    margin-top: 5px;
    min-height: 1.2em;
    display: none;
}

.disclaimer {
    margin-top: 40px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-gray);
    line-height: 1.6;
}

.cta-box {
    margin-top: 30px;
    text-align: center;
}

/* —— 按钮式 Radio 组 —— */
.radio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}
.radio-item {
    position: relative;
}
.radio-item input {
    position: absolute;
    opacity: 0;
}
.radio-item label {
    display: block;
    padding: 12px;
    text-align: center;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s;
}
.radio-item input:checked + label {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
}

/* —— 结果卡片网格 —— */
.result-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}
.res-card {
    background: #fff;
    border: 1px solid #ECEEF1;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.res-card .label {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-bottom: 10px;
    font-weight: 600;
}
.res-card .value {
    font-size: 2rem;
    color: var(--primary-blue);
    font-weight: 700;
    line-height: 1.2;
}
.res-card .sub-value {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin-top: 5px;
}

/* —— 通用表单与输入 —— */
.tool-form {
    display: grid;
    gap: var(--spacing-md);
    max-width: 600px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-dark);
}

.form-control {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
}

/* —— 结果展示 —— */
.tool-result {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-light);
    border-radius: 8px;
    border-left: 4px solid var(--primary-blue);
}

.result-title {
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 12px;
    font-size: 1.1rem;
}

/* —— 响应式 —— */
@media (max-width: 1024px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .tools-hero h1 {
        font-size: 1.8rem;
    }
    .tools-grid {
        grid-template-columns: 1fr;
    }
    .tool-card {
        padding: var(--spacing-md);
    }
    .tool-card .icon-box {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
    }
    .tool-container {
        padding: var(--spacing-md);
    }
    .tool-card .arrow {
        display: none;
    }
}