:root {
    --theme-primary: #0ea5e9;
    --theme-secondary: #06b6d4;
    --theme-bg: #020617;
}

.text-theme-primary { color: #0ea5e9; }
.text-theme-secondary { color: #06b6d4; }
.bg-theme-primary { background-color: #0ea5e9; }
.bg-theme-secondary { background-color: #06b6d4; }

.btn-primary {
    background: linear-gradient(135deg, #0ea5e9, #06b6d4);
    color: white;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #06b6d4, #0ea5e9);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(14, 165, 233, 0.4);
}

* {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

html { scroll-behavior: smooth; }

/* 背景网格样式 */
.bg-grid {
    background-image: linear-gradient(to right, rgba(148, 163, 184, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(148, 163, 184, 0.03) 1px, transparent 1px);
    background-size: 100px 100px;
}

.bg-dot-grid {
    background-image: radial-gradient(rgba(245, 158, 11, 0.08) 1px, transparent 1px);
    background-size: 24px 24px;
}

/* 标题样式 */
.section-tag {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
}

.section-title {
    font-size: 4rem;
    font-weight: 200;
    letter-spacing: -0.04em;
    line-height: 1.1;
}

/* 滚动动画 */
.fade-in-up {
    opacity: 0;
    transform: translateY(60px);
    transition: all 1.1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 404页面样式 */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

.float-animation { animation: float 6s ease-in-out infinite; }
.glow-pulse { animation: pulse-glow 2s ease-in-out infinite; }

.error-code {
    font-size: clamp(8rem, 25vw, 16rem);
    line-height: 1;
    background: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 50%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 标签云样式 */
.tag-cloud-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 24px;
    border-radius: 9999px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(51, 65, 85, 0.5);
    color: #94a3b8;
    font-size: 0.9rem;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    text-decoration: none;
}

.tag-cloud-item:hover {
    border-color: rgba(14, 165, 233, 0.5);
    color: #38bdf8;
    background: rgba(14, 165, 233, 0.08);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px -6px rgba(0, 0, 0, 0.4);
}

.tag-cloud-item .tag-count {
    font-size: 0.7rem;
    color: #475569;
    background: rgba(30, 41, 59, 0.8);
    padding: 2px 8px;
    border-radius: 9999px;
    transition: all 0.3s ease;
}

.tag-cloud-item:hover .tag-count {
    color: #38bdf8;
    background: rgba(14, 165, 233, 0.15);
}

.tag-size-sm { font-size: 0.8rem; padding: 8px 18px; }
.tag-size-md { font-size: 0.95rem; padding: 10px 22px; }
.tag-size-lg { font-size: 1.1rem; padding: 12px 28px; color: #cbd5e1; border-color: rgba(71, 85, 105, 0.6); }

/* 新闻卡片样式 */
.news-card {
    background: rgba(15, 23, 42, 0.6);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid rgba(51, 65, 85, 0.5);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.news-card:hover {
    transform: translateY(-8px);
    border-color: rgba(14, 165, 233, 0.5);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
}

.news-card:hover img {
    transform: scale(1.08);
}

.news-card h3 {
    transition: color 0.3s ease;
}

.news-card:hover h3 {
    color: #0ea5e9;
}

/* 横向案例卡片样式 */
.case-h-card {
    display: flex;
    flex-direction: row;
    width: 100%;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(71, 85, 105, 0.3);
    border-left: 3px solid #f59e0b;
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.case-h-card:hover {
    transform: translateY(-6px);
    border-color: rgba(245, 158, 11, 0.5);
    box-shadow: 0 20px 50px -20px rgba(245, 158, 11, 0.15);
    background: rgba(15, 23, 42, 0.85);
}

.case-h-card .card-img-wrap {
    width: 38%;
    min-height: 260px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.case-h-card .card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.case-h-card:hover .card-img-wrap img {
    transform: scale(1.08);
}

.case-h-card .card-img-wrap .img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, transparent 60%, rgba(2, 6, 23, 0.7));
}

.case-h-card .card-body {
    flex: 1;
    padding: 2rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.case-h-card .card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.case-h-card .card-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.75rem;
    border-radius: 9999px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.25);
    color: #fbbf24;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
}

.case-h-card .card-date {
    color: #64748b;
    font-size: 0.78rem;
}

.case-h-card .card-title {
    font-size: 1.45rem;
    font-weight: 600;
    color: #f1f5f9;
    line-height: 1.5;
    margin-bottom: 0.85rem;
    transition: color 0.3s ease;
}

.case-h-card:hover .card-title {
    color: #fbbf24;
}

.case-h-card .card-desc {
    color: #94a3b8;
    font-size: 0.9rem;
    line-height: 1.85;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-h-card .card-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #f59e0b;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    transition: all 0.3s ease;
}

.case-h-card .card-cta svg {
    transition: transform 0.3s ease;
}

.case-h-card:hover .card-cta svg {
    transform: translateX(5px);
}

.case-h-card .card-divider {
    width: 40px;
    height: 2px;
    background: linear-gradient(to right, #f59e0b, transparent);
    border-radius: 2px;
    margin-bottom: 1rem;
}

.case-h-card .card-index {
    position: absolute;
    top: 1.25rem;
    right: 1.5rem;
    font-size: 2.8rem;
    font-weight: 800;
    color: rgba(245, 158, 11, 0.08);
    line-height: 1;
    pointer-events: none;
}

/* 搜索框样式 */
.search-input {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(51, 65, 85, 0.5);
    color: #fff;
    transition: all 0.4s ease;
}

.search-input:focus {
    outline: none;
    border-color: rgba(14, 165, 233, 0.5);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
    background: rgba(15, 23, 42, 0.8);
}

.search-input::placeholder {
    color: #475569;
}

.search-form button[type="submit"] {
    position: absolute !important;
    right: 8px !important;
    top: 8px !important;
    bottom: 8px !important;
    width: auto !important;
    height: auto !important;
}

/* 搜索结果卡片 */
.search-card {
    background: rgba(15, 23, 42, 0.6);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(51, 65, 85, 0.5);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.search-card:hover {
    transform: translateY(-6px);
    border-color: rgba(14, 165, 233, 0.5);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
}

.search-card:hover img {
    transform: scale(1.05);
}

.search-card h3 a {
    transition: color 0.3s ease;
}

.search-card h3 a:hover {
    color: #0ea5e9;
}

/* 搜索高亮 */
.highlight {
    color: #0ea5e9;
    background: rgba(14, 165, 233, 0.15);
    padding: 0 4px;
    border-radius: 4px;
}

/* 分页样式 */
.pagelist ul, .pagelist li { list-style: none; margin: 0; padding: 0; }
.pagelist a, .pagelist span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    margin: 0 4px;
    border-radius: 9999px;
    background: rgba(30, 41, 59, 0.5);
    color: #94a3b8;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.pagelist a:hover {
    background: rgba(14, 165, 233, 0.2);
    color: #38bdf8;
    border-color: rgba(14, 165, 233, 0.3);
}

.pagelist .thisclass {
    background: linear-gradient(135deg, #0ea5e9, #06b6d4);
    color: white;
    font-weight: 500;
}

/* 空状态样式 */
.empty-state svg {
    opacity: 0.15;
}

/* Glow orb */
.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
}

/* 导航栏样式 */
.nav-link {
    position: relative;
    font-weight: 400;
    transition: font-weight 0.3s ease;
}

/* 移动端响应式 */
@media (max-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }

    .case-h-card {
        flex-direction: column;
        overflow: visible;
        min-height: auto;
    }

    .case-h-card .card-img-wrap {
        width: 100%;
        min-height: 220px;
        flex-shrink: 0;
        position: relative;
    }

    .case-h-card .card-body {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        padding: 1.5rem 1.25rem;
        background: linear-gradient(to top, rgba(2,6,23,0.95) 0%, rgba(2,6,23,0.8) 60%, transparent 100%);
        width: 100%;
        z-index: 10;
    }

    .case-h-card .card-meta {
        margin-bottom: 0.5rem;
    }

    .case-h-card .card-divider {
        margin-bottom: 0.5rem;
    }

    .case-h-card .card-title {
        font-size: 1.1rem;
        margin-bottom: 0.4rem;
    }

    .case-h-card .card-desc {
        -webkit-line-clamp: 2;
        font-size: 0.8rem;
        margin-bottom: 0.5rem;
    }

    .case-h-card .card-cta {
        font-size: 0.75rem;
    }

    .case-h-card .card-index {
        font-size: 2rem;
        top: 0.75rem;
        right: 1rem;
    }
}