/* 内容型页面公共样式 - 凡智·任务课堂（项目研究、真境挑战、线下活动、北斗认证、解决方案、合作伙伴、关于我们） */
.content-page main {
    margin-top: 92px;
    min-height: calc(100vh - 92px);
}

.content-hero {
    background: linear-gradient(135deg, var(--deep-space-blue) 0%, var(--light-blue) 100%);
    color: white;
    padding: 56px 0;
    text-align: center;
}

.content-hero h1 {
    font-size: 36px;
    margin-bottom: 12px;
}

.content-hero p {
    font-size: 16px;
    opacity: 0.95;
    max-width: 640px;
    margin: 0 auto;
}

.content-sections {
    padding: 48px 0 64px;
}

.content-sections .container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

.content-section {
    margin-bottom: 48px;
    padding-top: 24px;
}

.content-section:target {
    scroll-margin-top: 120px;
}

.content-section h2 {
    font-size: 22px;
    color: var(--deep-space-blue);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--starlight-gold);
}

.content-section p {
    font-size: 15px;
    line-height: 1.75;
    color: var(--dark-gray);
    margin-bottom: 12px;
}

.content-section ul {
    margin: 12px 0;
    padding-left: 24px;
}

.content-section li {
    margin-bottom: 8px;
    line-height: 1.6;
    color: var(--dark-gray);
}

.content-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.content-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
    border: 1px solid #f0f0f0;
}

.content-card h3 {
    font-size: 17px;
    color: var(--deep-space-blue);
    margin-bottom: 10px;
}

.content-card p {
    font-size: 14px;
    margin-bottom: 0;
}

.page-nav-anchors {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 32px;
}

.page-nav-anchors a {
    display: inline-block;
    padding: 8px 16px;
    background: #f0f0f0;
    color: var(--deep-space-blue);
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s ease;
}

.page-nav-anchors a:hover {
    background: var(--light-blue);
    color: white;
}

/* ========== 项目研究 - 项目选择目录 ========== */
.project-catalog-section .container-wide {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.project-catalog-intro {
    font-size: 15px;
    color: var(--dark-gray);
    margin-bottom: 24px;
    text-align: center;
}

.project-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 32px;
}

.project-filter {
    padding: 10px 20px;
    border: 1px solid var(--light-blue);
    background: white;
    color: var(--deep-space-blue);
    border-radius: 24px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.project-filter:hover {
    background: rgba(44, 82, 130, 0.08);
    border-color: var(--deep-space-blue);
}

.project-filter.active {
    background: var(--deep-space-blue);
    color: white;
    border-color: var(--deep-space-blue);
}

/* 分类下方搜索框 */
.project-search-wrap {
    margin-bottom: 28px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.project-search {
    width: 100%;
    padding: 12px 18px 12px 44px;
    border: 1px solid #ddd;
    border-radius: 24px;
    font-size: 15px;
    color: var(--dark-gray);
    background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E") no-repeat 16px center;
    background-size: 20px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.project-search::placeholder {
    color: #999;
}

.project-search:focus {
    outline: none;
    border-color: var(--light-blue);
    box-shadow: 0 0 0 3px rgba(62, 146, 204, 0.15);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
}

.project-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #eee;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

.project-card:target {
    scroll-margin-top: 120px;
}

.project-card-image {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.project-card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.5) 100%);
    pointer-events: none;
}

/* Logo 角标：与整体风格协调，白底+品牌色描边，对比清晰 */
.project-card-logo {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 2;
    width: 108px;
    height: 68px;
    border-radius: 12px;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 20px rgba(10, 36, 99, 0.2), 0 0 0 1px rgba(62, 146, 204, 0.25);
    backdrop-filter: blur(8px);
}

.project-card-logo img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    vertical-align: middle;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.08));
}

/* 角标左侧色条 + 背景微色区分，与深空蓝/星光金/浅蓝协调 */
.project-card-logo.logo-bg-1 {
    background: linear-gradient(135deg, #ffffff 0%, #f0f6fc 100%);
    box-shadow: 0 4px 20px rgba(10, 36, 99, 0.2), 0 0 0 1px rgba(62, 146, 204, 0.3), inset 4px 0 0 0 var(--deep-space-blue);
}
.project-card-logo.logo-bg-2 {
    background: linear-gradient(135deg, #ffffff 0%, #f8faf5 100%);
    box-shadow: 0 4px 20px rgba(10, 36, 99, 0.2), 0 0 0 1px rgba(62, 146, 204, 0.3), inset 4px 0 0 0 var(--starlight-gold);
}
.project-card-logo.logo-bg-3 {
    background: linear-gradient(135deg, #ffffff 0%, #f5f8fc 100%);
    box-shadow: 0 4px 20px rgba(10, 36, 99, 0.2), 0 0 0 1px rgba(62, 146, 204, 0.3), inset 4px 0 0 0 var(--light-blue);
}
.project-card-logo.logo-bg-4 {
    background: linear-gradient(135deg, #ffffff 0%, #faf5f8 100%);
    box-shadow: 0 4px 20px rgba(10, 36, 99, 0.2), 0 0 0 1px rgba(62, 146, 204, 0.3), inset 4px 0 0 0 #0A2463;
}
.project-card-logo.logo-bg-5 {
    background: linear-gradient(135deg, #ffffff 0%, #f5f5fa 100%);
    box-shadow: 0 4px 20px rgba(10, 36, 99, 0.2), 0 0 0 1px rgba(62, 146, 204, 0.3), inset 4px 0 0 0 #3E92CC;
}
.project-card-logo.logo-bg-6 {
    background: linear-gradient(135deg, #ffffff 0%, #f0f8fc 100%);
    box-shadow: 0 4px 20px rgba(10, 36, 99, 0.2), 0 0 0 1px rgba(62, 146, 204, 0.3), inset 4px 0 0 0 var(--starlight-gold);
}
.project-card-logo.logo-bg-7 {
    background: linear-gradient(135deg, #ffffff 0%, #fcfaf5 100%);
    box-shadow: 0 4px 20px rgba(10, 36, 99, 0.2), 0 0 0 1px rgba(62, 146, 204, 0.3), inset 4px 0 0 0 var(--deep-space-blue);
}
.project-card-logo.logo-bg-8 {
    background: linear-gradient(135deg, #ffffff 0%, #f8f6f5 100%);
    box-shadow: 0 4px 20px rgba(10, 36, 99, 0.2), 0 0 0 1px rgba(62, 146, 204, 0.3), inset 4px 0 0 0 var(--light-blue);
}

.project-card-body {
    padding: 20px 22px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-card-category {
    display: inline-block;
    font-size: 12px;
    color: var(--light-blue);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.project-card-provider {
    font-size: 13px;
    color: #555;
    margin-bottom: 10px;
}

.project-card-provider strong {
    color: var(--deep-space-blue);
    font-weight: 600;
}

.project-card-title {
    font-size: 18px;
    color: var(--deep-space-blue);
    margin: 0 0 12px;
    line-height: 1.35;
    font-weight: 600;
}

.project-card-desc {
    font-size: 14px;
    line-height: 1.65;
    color: var(--dark-gray);
    margin: 0 0 14px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}

.project-tag {
    font-size: 12px;
    padding: 4px 10px;
    background: #f0f4f8;
    color: var(--deep-space-blue);
    border-radius: 6px;
}

.project-card-grade {
    font-size: 13px;
    color: #666;
    margin: 0 0 14px;
}

.project-card-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.project-card-cta {
    display: inline-block;
    padding: 10px 18px;
    text-align: center;
    border-radius: 8px;
    font-size: 14px;
    text-decoration: none;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    flex: 1;
    min-width: 0;
}

.project-card-cta-detail {
    background: var(--deep-space-blue);
    color: white;
    border: 1px solid var(--deep-space-blue);
}

.project-card-cta-detail:hover {
    background: var(--light-blue);
    color: white;
    border-color: var(--light-blue);
}

.project-card-cta-join {
    background: white;
    color: var(--deep-space-blue);
    border: 1px solid var(--light-blue);
}

.project-card-cta-join:hover {
    background: #f0f6fc;
    color: var(--deep-space-blue);
    border-color: var(--deep-space-blue);
}

/* 分页 */
.project-pagination {
    margin-top: 36px;
    padding: 0 0 24px;
}

.project-pagination-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.project-pagination-btn {
    padding: 10px 18px;
    border: 1px solid var(--light-blue);
    background: white;
    color: var(--deep-space-blue);
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.project-pagination-btn:hover:not(:disabled) {
    background: #f0f6fc;
    border-color: var(--deep-space-blue);
}

.project-pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.project-pagination-list {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.project-pagination-item {
    margin: 0;
}

.project-pagination-num {
    min-width: 40px;
    height: 40px;
    padding: 0 8px;
    border: 1px solid #e0e0e0;
    background: white;
    color: var(--deep-space-blue);
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.project-pagination-num:hover {
    background: #f0f6fc;
    border-color: var(--light-blue);
}

.project-pagination-item.active .project-pagination-num {
    background: var(--deep-space-blue);
    color: white;
    border-color: var(--deep-space-blue);
}

.project-pagination-item.active .project-pagination-num:hover {
    background: var(--light-blue);
    border-color: var(--light-blue);
}

.project-pagination-info {
    margin: 12px 0 0;
    font-size: 14px;
    color: #666;
    text-align: center;
}

.project-catalog-note {
    margin-top: 40px;
    font-size: 14px;
    color: #666;
    text-align: center;
}

.project-catalog-note a {
    color: var(--light-blue);
    text-decoration: none;
}

.project-catalog-note a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .content-hero h1 { font-size: 28px; }
    .content-section h2 { font-size: 20px; }
    .project-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .project-card-image {
        height: 160px;
    }
}