/* ============================================================
   720全景工坊 - 官网扩展样式（真实作品 / 分类浏览 / 联系我们）
   依赖 style.css 的 CSS 变量，请在 style.css 之后引入
   ============================================================ */

/* ---------- 修复：导航栏底边白线（覆盖 style.css） ----------
   根因：Chrome 对 position:fixed + backdrop-filter:blur 的元素，会在其
   底边缘渲染出一条 1px 亮线（合成层采样残影），向下滚动、或刷新后
   Chrome 恢复滚动位置使 .scrolled 生效时都能看到，即"一闪而过的白线"。
   对策：彻底移除 backdrop-filter，改用接近不透明的纯色深底 + 阴影表达层次，
   并让 background 只做极短过渡，杜绝半透明中间帧。 */
.navbar {
    transition: background-color 0.25s ease, box-shadow 0.25s ease;
}
.navbar.scrolled {
    background: rgba(10,10,26,0.97);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    box-shadow: 0 8px 28px rgba(0,0,0,0.45);
}

/* ---------- 真实精选作品卡片 ---------- */
.work-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.work-card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.work-thumb {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a3e, #12122a);
}
.work-thumb img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.5s ease, opacity 0.3s;
}
.work-card:hover .work-thumb img { transform: scale(1.06); }
.work-badge {
    position: absolute; top: 12px; left: 12px;
    padding: 3px 10px; border-radius: 50px; font-size: 0.72rem; font-weight: 600;
    background: linear-gradient(135deg, #f59e0b, #ef4444); color: #fff;
}
.work-play {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    opacity: 0; transition: var(--transition);
}
.work-card:hover .work-play { opacity: 1; }
.work-body { padding: 16px 18px; }
.work-body h4 {
    font-size: 1rem; font-weight: 600; margin-bottom: 10px; color: #fff;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.work-meta {
    display: flex; align-items: center; justify-content: space-between;
    font-size: 0.8rem; color: var(--text-muted);
}
.work-author {
    max-width: 60%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.work-views { display: inline-flex; align-items: center; gap: 5px; }
.work-views svg { color: var(--text-dim); }

/* ---------- 分类浏览网格 ---------- */
.categories { padding: 80px 0 120px; }
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
}
.category-card {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 10px; padding: 26px 14px; text-align: center;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); transition: var(--transition);
}
.category-card:hover {
    background: var(--bg-card-hover); border-color: var(--primary);
    transform: translateY(-4px); box-shadow: var(--shadow);
}
.cat-ico { font-size: 2rem; line-height: 1; }
.cat-name { font-size: 0.92rem; font-weight: 600; color: var(--text); }
.category-card:hover .cat-name { color: var(--primary-light); }

/* ---------- 联系我们 ---------- */
.contact { padding: 80px 0 120px; }
.contact-grid {
    display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; align-items: stretch;
}
.contact-info {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
}
.info-card {
    display: flex; align-items: flex-start; gap: 14px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 20px; transition: var(--transition);
}
.info-card:hover { border-color: var(--border-light); background: var(--bg-card-hover); }
.info-ico {
    width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; background: rgba(99,102,241,0.12);
}
.info-text h4 { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; margin-bottom: 6px; }
.info-text p { font-size: 0.95rem; color: var(--text); line-height: 1.5; }
.info-text a { color: var(--primary-light); }
.info-text a:hover { color: var(--accent); }
/* 地址、工作时间跨两列显示 */
.contact-info .info-card:nth-last-child(-n+2) { grid-column: 1 / -1; }

.contact-cta {
    display: flex; flex-direction: column; justify-content: center; gap: 16px;
    background: linear-gradient(135deg, var(--primary-dark), var(--accent-dark));
    border-radius: var(--radius-lg); padding: 40px 32px; position: relative; overflow: hidden;
}
.contact-cta::before {
    content: ''; position: absolute; top: -60px; right: -50px;
    width: 200px; height: 200px; border-radius: 50%; background: rgba(255,255,255,0.08);
}
.contact-cta h3 { font-size: 1.5rem; font-weight: 800; color: #fff; position: relative; z-index: 1; }
.contact-cta p { font-size: 0.98rem; color: rgba(255,255,255,0.82); line-height: 1.7; position: relative; z-index: 1; }
.contact-cta .btn { position: relative; z-index: 1; align-self: flex-start; }

/* ---------- 页脚备案号 ---------- */
.footer-bottom { text-align: center; }
.footer-bottom p { margin-bottom: 6px; }
.footer-icp a { color: var(--text-dim); }
.footer-icp a:hover { color: var(--primary-light); }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
    .contact-grid { grid-template-columns: 1fr; }
    .contact-info { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .categories { padding: 48px 0 80px; }
    .category-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 12px; }
    .category-card { padding: 18px 10px; }
    .cat-ico { font-size: 1.6rem; }
    .cat-name { font-size: 0.82rem; }
    .contact { padding: 48px 0 80px; }
    .contact-info { grid-template-columns: 1fr; }
    .contact-info .info-card:nth-last-child(-n+2) { grid-column: auto; }
    .contact-cta { padding: 32px 24px; }
    .contact-cta h3 { font-size: 1.25rem; }
    .contact-cta .btn { align-self: stretch; justify-content: center; }
}