/* =========================================================
   Manxing Grain Storage — Product Pages Styles
   产品列表页 + 产品详情页 专属样式（独立文件，便于前端单独优化）
   依赖：grain.css 中的 CSS 变量（--primary / --accent / --radius / --dark / --muted / --border 等）
   ========================================================= */

/* =========================================================
   一、产品列表页（/products）
   ========================================================= */

/* —— 分类分组区块 + 分隔线 —— */
.product-category-block { position: relative; }
.product-category-block:not(:last-child)::after {
    content: ''; display: block; height: 1px; margin-top: 1rem;
    background: linear-gradient(90deg, transparent, var(--border) 20%, var(--border) 80%, transparent);
}

/* —— 分类标题（左对齐 + 竖线）—— */
.category-heading { position: relative; padding-left: 16px; }
.category-heading::before {
    content: ''; position: absolute; left: 0; top: 4px; bottom: 4px; width: 4px;
    border-radius: 2px; background: linear-gradient(180deg, var(--accent), var(--primary));
}
.category-heading h2 { font-size: 1.85rem; font-weight: 800; color: var(--dark); margin: 0; letter-spacing: -.01em; }
.category-heading p { margin: .25rem 0 0; color: var(--muted); font-size: .95rem; }
.category-heading .cat-count {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 26px; height: 26px; padding: 0 8px; margin-left: 10px;
    background: var(--accent-50); color: var(--accent-dark);
    border: 1px solid #e0c28a; border-radius: 20px;
    font-size: .78rem; font-weight: 700; vertical-align: middle;
}

/* —— 产品卡（列表页 / 相关产品）—— */
.product-card {
    background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
    overflow: hidden; transition: all .3s cubic-bezier(.4,0,.2,1);
    display: flex; flex-direction: column; position: relative;
    box-shadow: 0 1px 0 var(--border), 0 8px 24px rgba(13,124,90,.04);
}
.product-card:hover {
    transform: translateY(-8px); border-color: transparent;
    box-shadow: 0 22px 48px rgba(13,124,90,.16);
}
.product-card .pc-img { aspect-ratio: 4/3; overflow: hidden; position: relative; }
.product-card .pc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.product-card:hover .pc-img img { transform: scale(1.08); }
.product-card .pc-img::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(8,46,37,.35) 100%);
    opacity: 0; transition: opacity .3s;
}
.product-card:hover .pc-img::after { opacity: 1; }
.product-card .pc-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.product-card .pc-body h3 { font-size: 1.2rem; color: var(--dark); margin-bottom: 8px; letter-spacing: -.01em; }
.product-card .pc-body p { color: var(--muted); font-size: .92rem; flex: 1; line-height: 1.55; }
.product-card .pc-link {
    margin-top: 16px; font-weight: 700; color: var(--primary);
    display: inline-flex; align-items: center; gap: 6px; font-size: .92rem;
}
.product-card .pc-link::after { content: '→'; transition: transform .25s; }
.product-card:hover .pc-link::after { transform: translateX(4px); }

/* =========================================================
   二、产品详情页（/products/{slug}）
   ========================================================= */

/* —— 大图 Hero —— */
.product-detail-hero {
    position: relative; color: #fff; overflow: hidden;
    background-size: cover; background-position: center;
    padding: 96px 0 88px; border-bottom: 3px solid var(--accent);
}
.product-detail-hero::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(105deg, rgba(6,40,31,.92) 0%, rgba(8,46,37,.78) 45%, rgba(8,46,37,.35) 100%);
}
.product-detail-hero .container { position: relative; z-index: 2; }
.product-detail-hero h1 { font-size: 3rem; line-height: 1.1; font-weight: 900; max-width: 720px; margin-bottom: 16px; letter-spacing: -.02em; }
.product-detail-hero p { font-size: 1.15rem; max-width: 620px; color: #d6e5db; margin-bottom: 28px; }
.product-detail-hero .hero-meta { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 28px; }
.product-detail-hero .hero-meta span {
    display: inline-flex; align-items: center; gap: 7px;
    font-size: .85rem; color: #d6e5db;
    background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18);
    padding: 7px 14px; border-radius: 20px; backdrop-filter: blur(4px);
}
.product-detail-hero .btn-outline { color: #fff; border-color: rgba(255,255,255,.7); }
.product-detail-hero .btn-outline:hover { background: rgba(255,255,255,.14); color: #fff; border-color: #fff; }
@media (max-width: 768px) {
    .product-detail-hero { padding: 64px 0 56px; }
    .product-detail-hero h1 { font-size: 2.1rem; }
}

/* —— 概述图 —— */
.product-overview-img {
    position: relative; border-radius: var(--radius); overflow: hidden;
    box-shadow: 0 18px 40px rgba(8,46,37,.18);
}
.product-overview-img img { display: block; width: 100%; height: 100%; object-fit: cover; }

/* —— 精致 feature 卡 —— */
.feature-lux { display: flex; gap: 18px; padding: 26px; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); transition: all .3s; }
.feature-lux:hover { transform: translateY(-5px); box-shadow: 0 16px 36px rgba(13,124,90,.1); border-color: transparent; }
.feature-lux .feature-icon { width: 56px; height: 56px; flex-shrink: 0; border-radius: 14px; background: linear-gradient(145deg, #e6f2ec, #d5e9dc); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; box-shadow: inset 0 -3px 0 rgba(13,124,90,.12); }
.feature-lux h3 { font-size: 1.08rem; color: var(--dark); margin-bottom: 6px; }
.feature-lux p { color: var(--muted); font-size: .9rem; line-height: 1.55; }

/* —— 带编号的区块标题 —— */
.block-title { display: flex; align-items: center; gap: 14px; margin: 3rem 0 1.5rem; }
.block-title .bt-num {
    flex-shrink: 0; width: 40px; height: 40px; border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), #e8c07a);
    color: #13251f; font-weight: 800; font-size: 1.05rem;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 6px 16px rgba(176,128,58,.3);
}
.block-title h2 { font-size: 1.7rem; font-weight: 800; color: var(--dark); margin: 0; letter-spacing: -.01em; }

/* =========================================================
   三、列表页紧凑化 / 锚点导航（解决"页面太长"）
   ========================================================= */

/* 分类锚点导航条：吸顶，横向排列分类，点击平滑滚动到对应分类 */
.product-cat-nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,.95); backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0; margin-bottom: 2rem;
    display: flex; gap: 8px; flex-wrap: wrap;
}
.product-cat-nav a {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px; border-radius: 20px;
    font-size: .88rem; font-weight: 600; color: var(--text);
    background: var(--light); border: 1px solid var(--border);
    text-decoration: none; transition: all .2s; white-space: nowrap;
}
.product-cat-nav a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.product-cat-nav a .nav-count {
    font-size: .72rem; background: var(--accent-50); color: var(--accent-dark);
    border-radius: 10px; padding: 1px 7px;
}
.product-cat-nav a:hover .nav-count { background: rgba(255,255,255,.25); color: #fff; }

/* 紧凑卡片：列表页可选小卡（横排，减少纵向长度） */
.product-card-compact {
    display: flex; align-items: center; gap: 16px;
    background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 14px 18px; text-decoration: none; transition: all .25s;
}
.product-card-compact:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(13,124,90,.12); border-color: transparent; }
.product-card-compact .pcc-img { width: 72px; height: 72px; flex-shrink: 0; border-radius: 10px; overflow: hidden; }
.product-card-compact .pcc-img img { width: 100%; height: 100%; object-fit: cover; }
.product-card-compact .pcc-body { flex: 1; min-width: 0; }
.product-card-compact .pcc-body h3 { font-size: 1rem; color: var(--dark); margin: 0 0 3px; }
.product-card-compact .pcc-body p { font-size: .84rem; color: var(--muted); margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.product-card-compact .pcc-arrow { color: var(--primary); font-weight: 700; flex-shrink: 0; }