/* ===========================================================
   产品中心页面样式（resources/newpage/products.html）
   依赖 home.css 的 Design Tokens 与头部/页脚样式
   注意：使用 .p-grid / .p-card / .p-* 命名，避免与首页 .product-grid 冲突
   =========================================================== */

/* ============== 页面 hero（蓝色）============== */
.page-hero {
    background: linear-gradient(135deg, #061A36 0%, #0B2545 50%, #143A6B 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 80%);
    pointer-events: none;
}
.page-hero-inner {
    position: relative;
    padding: 64px 0 56px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.crumbs {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: rgba(255,255,255,.6);
}
.crumbs a, .crumbs button {
    color: rgba(255,255,255,.6);
    text-decoration: none;
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
}
.crumbs a:hover, .crumbs button:hover { color: #fff; }
.crumbs .sep { color: rgba(255,255,255,.3); }
.crumbs .current { color: #fff; font-weight: 500; }
.page-hero h1 {
    font-size: 40px;
    font-weight: 700;
    margin: 0;
    letter-spacing: 0.01em;
}
.page-hero h1 .accent { color: var(--c-accent-2); }
.page-hero p {
    font-size: 15px;
    color: rgba(255,255,255,.75);
    max-width: 720px;
    margin: 0;
    line-height: 1.75;
}
.page-hero-meta {
    display: flex;
    gap: 32px;
    margin-top: 8px;
    flex-wrap: wrap;
}
.page-hero-meta div {
    font-size: 13px;
    color: rgba(255,255,255,.7);
}
.page-hero-meta div b {
    color: #fff;
    font-size: 22px;
    font-weight: 700;
    display: block;
    line-height: 1.1;
    font-feature-settings: "tnum";
}

/* ============== 主区：左侧筛选 + 右侧网格 ============== */
.catalog {
    padding: 56px 0 80px;
}
.catalog-grid {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 32px;
    align-items: flex-start;
}

/* ============== 左侧筛选卡 ============== */
.filter-card {
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: var(--r-lg);
    overflow: hidden;
    position: sticky;
    top: 92px;
}
.filter-head {
    padding: 18px 22px;
    border-bottom: 1px solid var(--c-line);
    background: linear-gradient(135deg, #F8FAFC 0%, #EFF6FF 100%);
}
.filter-head h3 {
    margin: 0;
    font-size: 15px;
    font-weight: 700;
    color: var(--c-ink);
    display: flex;
    align-items: center;
    gap: 8px;
}
.filter-head h3::before {
    content: '';
    width: 4px;
    height: 14px;
    background: var(--c-accent);
    border-radius: 2px;
}
.filter-head .sub {
    font-size: 12px;
    color: var(--c-ink-3);
    margin-top: 4px;
    letter-spacing: 0.06em;
}
.filter-list {
    padding: 8px;
}
.filter-item {
    width: 100%;
    padding: 12px 14px;
    border-radius: var(--r-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    color: var(--c-ink-2);
    text-align: left;
    transition: background .18s ease, color .18s ease;
    border: 1px solid transparent;
    background: none;
    cursor: pointer;
    text-decoration: none;
}
.filter-item:hover {
    background: var(--c-surface-2);
    color: var(--c-brand);
}
.filter-item.is-active {
    background: var(--c-brand);
    color: #fff;
    border-color: var(--c-brand);
}
.filter-item .l {
    display: flex;
    align-items: center;
    gap: 10px;
}
.filter-item .l::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--c-line-2);
}
.filter-item.is-active .l::before {
    background: var(--c-accent-2);
    box-shadow: 0 0 0 3px rgba(242,92,42,.25);
}
.filter-item .count {
    font-size: 12px;
    color: var(--c-ink-3);
    font-feature-settings: "tnum";
}
.filter-item.is-active .count {
    color: rgba(255,255,255,.7);
}

/* 侧边帮助块 */
.filter-help {
    padding: 16px 22px;
    border-top: 1px solid var(--c-line);
    background: var(--c-surface-2);
}
.filter-help .t {
    font-size: 13px;
    font-weight: 600;
    color: var(--c-ink);
    margin: 0 0 6px;
}
.filter-help .p {
    font-size: 12px;
    color: var(--c-ink-3);
    line-height: 1.6;
    margin: 0;
}
.filter-help .btn {
    margin-top: 10px;
    width: 100%;
    height: 36px;
    background: var(--c-accent);
    color: #fff;
    border-radius: var(--r-md);
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 0;
    text-decoration: none;
    cursor: pointer;
}
.filter-help .btn:hover { background: #DC4A1A; }

/* ============== 右侧：工具栏 + 网格 + 分页 + CTA ============== */
.catalog-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding: 14px 18px;
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: var(--r-lg);
    gap: 12px;
    flex-wrap: wrap;
}
.catalog-toolbar .result {
    font-size: 14px;
    color: var(--c-ink-2);
}
.catalog-toolbar .result b {
    color: var(--c-brand);
    font-weight: 700;
}
.catalog-toolbar .sort {
    display: flex;
    align-items: center;
    gap: 4px;
}
.sort-btn {
    padding: 6px 12px;
    font-size: 13px;
    color: var(--c-ink-3);
    border-radius: var(--r-sm);
    border: 1px solid transparent;
    background: none;
    cursor: pointer;
}
.sort-btn:hover {
    color: var(--c-brand);
    background: var(--c-surface-2);
}
.sort-btn.is-active {
    color: var(--c-brand);
    border-color: var(--c-line);
    background: var(--c-surface-2);
}

/* 产品网格（4 列响应式）—— 命名避开 home.css 的 .product-grid */
.p-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}
.p-card {
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: var(--r-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    text-decoration: none;
    color: inherit;
}
.p-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--c-line-2);
}
.p-cover {
    aspect-ratio: 1/1;
    background: linear-gradient(135deg, #F1F5F9 0%, #E2E8F0 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.p-cover img {
    width: 84%;
    height: 84%;
    object-fit: contain;
    filter: drop-shadow(0 6px 14px rgba(15,23,42,.10));
    transition: transform .25s ease;
}
.p-card:hover .p-cover img { transform: scale(1.04); }
.p-cover .badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 4px 9px;
    border-radius: 4px;
    background: rgba(11,37,69,.85);
    color: #fff;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.04em;
}
.p-cover .cat-tag {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 4px 8px;
    border-radius: 999px;
    background: rgba(242,92,42,.12);
    color: var(--c-accent);
    font-size: 11px;
    font-weight: 600;
    border: 1px solid rgba(242,92,42,.2);
}
.p-body {
    padding: 14px 16px 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}
.p-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--c-ink);
    line-height: 1.4;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.8em;
}
.p-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--c-ink-3);
    margin-top: auto;
    padding-top: 8px;
    border-top: 1px dashed var(--c-line);
}
.p-meta .id { font-feature-settings: "tnum"; }
.p-cta {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--c-brand);
    font-weight: 600;
    font-size: 12px;
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
}
.p-cta:hover { color: var(--c-accent); }
.p-cta svg { width: 12px; height: 12px; }

/* 空状态 */
.p-empty {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--c-ink-4);
    padding: 48px 0;
    font-size: 14px;
}

/* ============== 分页 ============== */
.pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 40px;
    flex-wrap: wrap;
}
.pager a, .pager button {
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border-radius: var(--r-md);
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    color: var(--c-ink-2);
    font-size: 13px;
    font-feature-settings: "tnum";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: border-color .18s ease, color .18s ease, background .18s ease;
    text-decoration: none;
    cursor: pointer;
}
.pager a:hover:not(.disabled):not(.active),
.pager button:hover:not(:disabled) {
    border-color: var(--c-brand);
    color: var(--c-brand);
}
.pager a.active, .pager button.is-active {
    background: var(--c-brand);
    color: #fff;
    border-color: var(--c-brand);
}
.pager .disabled {
    opacity: .4;
    cursor: not-allowed;
    pointer-events: none;
}
.pager .ellipsis {
    color: var(--c-ink-3);
    padding: 0 4px;
}
.pager svg { width: 14px; height: 14px; }

/* ============== 底部 CTA ============== */
.catalog-cta {
    margin-top: 56px;
    padding: 40px 44px;
    background: linear-gradient(135deg, #061A36 0%, #0B2545 100%);
    color: #fff;
    border-radius: var(--r-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    position: relative;
    overflow: hidden;
}
.catalog-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: radial-gradient(ellipse at 80% 50%, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at 80% 50%, black 30%, transparent 80%);
}
.catalog-cta .ct { position: relative; }
.catalog-cta h3 {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 8px;
    letter-spacing: .01em;
}
.catalog-cta p {
    margin: 0;
    font-size: 14px;
    color: rgba(255,255,255,.7);
    max-width: 520px;
}
.catalog-cta .ct-actions {
    position: relative;
    display: flex;
    gap: 12px;
    flex-shrink: 0;
    flex-wrap: wrap;
}
.catalog-cta .btn-warm {
    height: 44px;
    padding: 0 22px;
    background: var(--c-accent);
    color: #fff;
    border-radius: var(--r-md);
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    border: 0;
    cursor: pointer;
}
.catalog-cta .btn-warm:hover { background: #DC4A1A; }
.catalog-cta .btn-line {
    height: 44px;
    padding: 0 22px;
    background: transparent;
    color: #fff;
    border-radius: var(--r-md);
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(255,255,255,.3);
    text-decoration: none;
    cursor: pointer;
}
.catalog-cta .btn-line:hover {
    background: rgba(255,255,255,.08);
    border-color: rgba(255,255,255,.6);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .p-card, .p-cover img, .filter-item, .pager a, .pager button, .catalog-cta .btn-warm, .catalog-cta .btn-line {
        transition: none !important;
    }
}

/* ============== 响应式 ============== */
@media (max-width: 1100px) {
    .catalog-grid {
        grid-template-columns: 220px 1fr;
        gap: 24px;
    }
    .p-grid { grid-template-columns: repeat(3, 1fr); }
    .page-hero h1 { font-size: 34px; }
}
@media (max-width: 760px) {
    .page-hero-inner { padding: 48px 0 40px; }
    .page-hero h1 { font-size: 28px; }
    .page-hero-meta { gap: 18px; }
    .catalog { padding: 40px 0 56px; }
    .catalog-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .filter-card { position: static; }
    .filter-list {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }
    .filter-item .count { display: none; }
    .p-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    .p-body { padding: 12px 12px 14px; }
    .p-name { font-size: 13px; }
    .catalog-cta {
        flex-direction: column;
        align-items: flex-start;
        padding: 28px 24px;
    }
}