/* ============================================================
   前端展示样式 - 白底 + 夜间模式 + 移动端优先
   ============================================================ */

/* ---------- CSS 变量（浅色主题） ---------- */
:root {
    --bg: #ffffff;
    --bg-secondary: #f8f9fa;
    --text: #1a1a1a;
    --text-secondary: #666666;
    --text-muted: #999999;
    --border: #e8e8e8;
    --accent: #e8527a;
    --accent-hover: #d14068;
    --card-bg: #ffffff;
    --card-shadow: 0 2px 8px rgba(0,0,0,0.06);
    --header-bg: #ffffff;
    --nav-bg: #f8f9fa;
    --radius: 12px;
    --radius-sm: 8px;
}

/* ---------- 深色主题 ---------- */
[data-theme="dark"] {
    --bg: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --text: #e8e8e8;
    --text-secondary: #aaaaaa;
    --text-muted: #666666;
    --border: #2a2a2a;
    --accent: #ff6b8a;
    --accent-hover: #ff8da6;
    --card-bg: #1a1a1a;
    --card-shadow: 0 2px 8px rgba(0,0,0,0.3);
    --header-bg: #141414;
    --nav-bg: #1a1a1a;
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { 
    font-size: 16px; 
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ---------- Header ---------- */
.site-header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--border);
    padding: 24px 0 16px;
    position: relative;
}

.site-header .container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.site-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
    flex: 1;
}

.site-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.7;
    /* 移动端也显示，只是更小更淡 */
}

.back-link {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.theme-toggle {
    background: none;
    border: 2px solid var(--border);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.theme-toggle:hover { border-color: var(--accent); }

/* ---------- 分类导航 ---------- */
.category-nav {
    background: var(--nav-bg);
    border-bottom: 1px solid var(--border);
    padding: 8px 0;
}

.category-scroll {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
}
.category-scroll::-webkit-scrollbar { display: none; }

.category-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    white-space: nowrap;
    background: var(--bg);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    transition: all 0.2s;
}
.category-tag:hover { border-color: var(--accent); color: var(--accent); }
.category-tag.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ---------- 商品网格 ---------- */
main.container { padding-top: 16px; padding-bottom: 32px; }

.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.product-card-link {
    display: block;
    color: inherit;
}
.product-card-link:hover {
    color: inherit;
}
.product-card-link:active .product-card {
    transform: scale(0.97);
}

@media (min-width: 600px) {
    .product-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- 商品卡片 ---------- */
.product-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.product-thumb {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: var(--bg-secondary);
}
.product-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.product-info {
    padding: 10px 12px 12px;
}

.product-title {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    /* -webkit-line-clamp 浏览器支持：Chrome/Safari/Firefox 68+/Edge，移动端全覆盖 */
}

.product-cat {
    display: inline-block;
    margin-top: 4px;
    font-size: 0.75rem;
    color: var(--accent);
    background: rgba(232,82,122,0.08);
    padding: 2px 8px;
    border-radius: 4px;
}

.product-pin {
    display: inline-block;
    margin-top: 4px;
    margin-right: 6px;
    font-size: 0.72rem;
    color: #cc7a00;
    background: rgba(255,149,0,0.14);
    padding: 2px 8px;
    border-radius: 4px;
}

/* ---------- 商品详情 ---------- */
.product-detail { padding-top: 0; }

.gallery-main {
    width: 100%;
    background: var(--bg-secondary);
    margin-bottom: 0;
}
.gallery-main img {
    width: 100%;
    max-height: 70vh;
    object-fit: contain;
}

.gallery-thumbs {
    display: flex;
    gap: 8px;
    padding: 8px 0;
    overflow-x: auto;
    scrollbar-width: none;
}
.gallery-thumbs::-webkit-scrollbar { display: none; }

.gallery-thumb {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: 6px;
    border: 2px solid transparent;
    cursor: pointer;
    flex-shrink: 0;
    opacity: 0.6;
    transition: all 0.2s;
}
.gallery-thumb.active { border-color: var(--accent); opacity: 1; }

.product-meta {
    padding: 16px 0 8px;
}
.product-meta .product-title {
    font-size: 1.3rem;
    -webkit-line-clamp: unset;
}

.product-cat-link {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--accent);
    background: rgba(232,82,122,0.08);
    padding: 3px 10px;
    border-radius: 4px;
    margin-top: 6px;
}

.product-date {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.product-content {
    padding: 16px 0 32px;
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-secondary);
    white-space: pre-wrap;
}

/* ---------- Footer ---------- */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 20px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ---------- 空状态 ---------- */
.empty-state {
    text-align: center;
    padding: 48px 16px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ---------- 响应式增强 ---------- */
@media (min-width: 768px) {
    .site-desc { font-size: 0.85rem; opacity: 1; }
    .product-grid { gap: 16px; }
    .product-title { font-size: 0.95rem; }
}

/* ---------- 分页导航 ---------- */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 32px;
    padding-bottom: 8px;
    flex-wrap: wrap;
}

.page-link {
    display: inline-block;
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all 0.2s;
}

.page-link:hover:not(.disabled) {
    border-color: var(--accent);
    color: var(--accent);
}

.page-link.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.page-link.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}