/* ========================================
   GDUFE CS Manual - 额外增强样式
   ======================================== */

/* ---------- 动画关键帧 ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

/* ---------- 加载动画 ---------- */
.loading-shimmer {
    background: linear-gradient(90deg,
            var(--gdufe-bg) 25%,
            var(--gdufe-border) 50%,
            var(--gdufe-bg) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* ---------- 内容淡入动画 ---------- */
.md-content__inner>* {
    animation: fadeInUp 0.5s ease-out forwards;
}

.md-content__inner>*:nth-child(1) {
    animation-delay: 0.05s;
}

.md-content__inner>*:nth-child(2) {
    animation-delay: 0.1s;
}

.md-content__inner>*:nth-child(3) {
    animation-delay: 0.15s;
}

.md-content__inner>*:nth-child(4) {
    animation-delay: 0.2s;
}

.md-content__inner>*:nth-child(5) {
    animation-delay: 0.25s;
}

/* ---------- 链接卡片 ---------- */
.link-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--gdufe-surface);
    border: 1px solid var(--gdufe-border);
    border-radius: var(--radius-lg);
    text-decoration: none !important;
    transition: var(--transition-base);
    margin: 0.75rem 0;
}

.link-card:hover {
    border-color: var(--gdufe-accent);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.link-card__icon {
    width: 48px;
    height: 48px;
    background: var(--gdufe-gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.link-card__icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.link-card__content {
    flex: 1;
    min-width: 0;
}

.link-card__title {
    font-weight: 600;
    color: var(--gdufe-text);
    margin-bottom: 0.25rem;
}

.link-card__desc {
    font-size: 0.875rem;
    color: var(--gdufe-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.link-card__arrow {
    color: var(--gdufe-text-muted);
    transition: var(--transition-fast);
}

.link-card:hover .link-card__arrow {
    color: var(--gdufe-accent);
    transform: translateX(4px);
}

/* ---------- 信息卡片网格 ---------- */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--gdufe-bg);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.info-item:hover {
    background: var(--gdufe-surface);
    box-shadow: var(--shadow-sm);
}

.info-item__icon {
    width: 36px;
    height: 36px;
    background: var(--gdufe-gradient-accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-item__icon svg {
    width: 18px;
    height: 18px;
    color: white;
}

.info-item__content {
    flex: 1;
}

.info-item__label {
    font-size: 0.75rem;
    color: var(--gdufe-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.info-item__value {
    font-weight: 600;
    color: var(--gdufe-text);
}

/* ---------- 时间线样式 ---------- */
.timeline {
    position: relative;
    padding-left: 2rem;
    margin: 1.5rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gdufe-gradient-accent);
    border-radius: 1px;
}

.timeline-item {
    position: relative;
    padding-bottom: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.75rem;
    top: 0.25rem;
    width: 12px;
    height: 12px;
    background: var(--gdufe-surface);
    border: 3px solid var(--gdufe-accent);
    border-radius: 50%;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item__time {
    font-size: 0.8rem;
    color: var(--gdufe-text-muted);
    margin-bottom: 0.25rem;
}

.timeline-item__title {
    font-weight: 600;
    color: var(--gdufe-text);
    margin-bottom: 0.5rem;
}

.timeline-item__content {
    color: var(--gdufe-text-secondary);
    font-size: 0.9rem;
}

/* ---------- 评分星星 ---------- */
.rating {
    display: inline-flex;
    gap: 0.125rem;
}

.rating__star {
    color: var(--gdufe-warning);
}

.rating__star--empty {
    color: var(--gdufe-border);
}

/* ---------- 标签云 ---------- */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.tag-cloud__item {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.375rem 0.75rem;
    background: var(--gdufe-bg);
    border: 1px solid var(--gdufe-border);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--gdufe-text-secondary);
    text-decoration: none !important;
    transition: var(--transition-fast);
}

.tag-cloud__item:hover {
    background: var(--gdufe-primary);
    border-color: var(--gdufe-primary);
    color: white;
}

.tag-cloud__count {
    font-size: 0.75rem;
    padding: 0.125rem 0.375rem;
    background: var(--gdufe-border);
    border-radius: var(--radius-sm);
    color: var(--gdufe-text-muted);
}

.tag-cloud__item:hover .tag-cloud__count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* ---------- 引用块美化 ---------- */
.md-typeset blockquote {
    position: relative;
    background: var(--gdufe-bg);
    border-left: 4px solid var(--gdufe-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--gdufe-text-secondary);
}

.md-typeset blockquote::before {
    content: '"';
    position: absolute;
    top: -0.5rem;
    left: 0.5rem;
    font-size: 3rem;
    color: var(--gdufe-accent);
    opacity: 0.3;
    font-family: Georgia, serif;
    line-height: 1;
}

.md-typeset blockquote p {
    margin: 0;
    position: relative;
    z-index: 1;
}

.md-typeset blockquote cite {
    display: block;
    margin-top: 0.75rem;
    font-size: 0.875rem;
    font-style: normal;
    color: var(--gdufe-text-muted);
}

.md-typeset blockquote cite::before {
    content: '— ';
}

/* ---------- 图片卡片 ---------- */
.image-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.image-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.image-card__img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.image-card__content {
    padding: 1rem;
    background: var(--gdufe-surface);
}

.image-card__title {
    font-weight: 600;
    color: var(--gdufe-text);
    margin-bottom: 0.5rem;
}

.image-card__desc {
    font-size: 0.875rem;
    color: var(--gdufe-text-secondary);
}

/* ---------- 步骤指示器 ---------- */
.steps {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 1.5rem 0;
    padding: 1rem;
    background: var(--gdufe-bg);
    border-radius: var(--radius-lg);
}

.step {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.step__number {
    width: 28px;
    height: 28px;
    background: var(--gdufe-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gdufe-text-muted);
}

.step--active .step__number {
    background: var(--gdufe-gradient-accent);
    color: white;
}

.step--completed .step__number {
    background: var(--gdufe-success);
    color: white;
}

.step__label {
    font-size: 0.875rem;
    color: var(--gdufe-text-secondary);
}

.step--active .step__label {
    color: var(--gdufe-text);
    font-weight: 600;
}

.step__divider {
    flex: 1;
    height: 2px;
    background: var(--gdufe-border);
    max-width: 40px;
}

.step__divider--completed {
    background: var(--gdufe-success);
}

/* ---------- 数据展示 ---------- */
.data-display {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.data-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--gdufe-surface);
    border: 1px solid var(--gdufe-border);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
}

.data-item:hover {
    border-color: var(--gdufe-accent);
    box-shadow: var(--shadow-sm);
}

.data-item__value {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gdufe-gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.data-item__label {
    font-size: 0.875rem;
    color: var(--gdufe-text-secondary);
    margin-top: 0.5rem;
}

/* ---------- 提示气泡 ---------- */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip__content {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 0.75rem;
    background: var(--gdufe-text);
    color: white;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    z-index: 100;
}

.tooltip__content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--gdufe-text);
}

.tooltip:hover .tooltip__content {
    opacity: 1;
    visibility: visible;
    bottom: calc(100% + 8px);
}

/* ---------- 公告栏 ---------- */
.announcement {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.1) 0%, rgba(90, 127, 165, 0.1) 100%);
    border: 1px solid var(--gdufe-accent);
    border-radius: var(--radius-lg);
    margin: 1rem 0;
}

.announcement__icon {
    color: var(--gdufe-accent);
    flex-shrink: 0;
}

.announcement__content {
    flex: 1;
    font-size: 0.9rem;
    color: var(--gdufe-text);
}

.announcement__close {
    color: var(--gdufe-text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

.announcement__close:hover {
    color: var(--gdufe-text);
}

/* ---------- 深色模式适配 ---------- */
[data-md-color-scheme="slate"] .link-card:hover {
    border-color: var(--gdufe-accent);
}

[data-md-color-scheme="slate"] .info-item {
    background: var(--gdufe-surface);
}

[data-md-color-scheme="slate"] .info-item:hover {
    background: #1f2937;
}

[data-md-color-scheme="slate"] .timeline-item::before {
    background: var(--gdufe-bg);
}

[data-md-color-scheme="slate"] .tag-cloud__item {
    background: var(--gdufe-surface);
}

[data-md-color-scheme="slate"] .md-typeset blockquote {
    background: var(--gdufe-surface);
}

[data-md-color-scheme="slate"] .steps {
    background: var(--gdufe-surface);
}

[data-md-color-scheme="slate"] .data-item {
    background: var(--gdufe-bg);
}

[data-md-color-scheme="slate"] .announcement {
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.15) 0%, rgba(57, 208, 216, 0.15) 100%);
}