/* ==========================================================================
   DBHOO 产品矩阵 - 页面样式
   主题: neuroai  | 深色风格
   路径: /wp-content/themes/neuroai/assets/css/products.css
   ========================================================================== */

:root {
    --pa-bg:          #0b0d17;
    --pa-bg-soft:     #11141f;
    --pa-card:        #1a1d2e;
    --pa-card-hover:  #232740;
    --pa-border:      #2a2f48;
    --pa-text:        #e2e8f0;
    --pa-text-muted:  #94a3b8;
    --pa-text-dim:    #64748b;
    --pa-accent:      #6366f1;
    --pa-accent-soft: #818cf8;
    --pa-green:       #22c55e;
    --pa-red:         #ef4444;
    --pa-radius:      10px;
    --pa-radius-sm:   6px;
    --pa-shadow:      0 4px 24px rgba(0, 0, 0, 0.35);
    --pa-maxw:        1200px;

    /* 对比表专用（浅色模式下会切换） */
    --pa-table-head:        #161927;
    --pa-table-head-first:  #1a1d2e;
    --pa-table-head-text:   #ffffff;
    --pa-table-col-first:   rgba(26, 29, 46, 0.6);
    --pa-table-row-alt:     rgba(26, 29, 46, 0.45);
    --pa-table-col-first-text: #ffffff;
}

/* 入口容器 */
.dbhoo-products-page {
    background: var(--pa-bg);
    color: var(--pa-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    min-height: 100vh;
    /* 不要用 overflow-x:hidden —— 按 CSS 规范，只声明一个轴时，另一个轴的 visible 会被
       强制计算为 auto，本容器因此变成「自带纵向滚动条的滚动容器」：加载 / Tab 切换瞬间
       内容一旦超出 8px 就会在右缘闪出一条滚动条，布局稳定后又消失。
       clip 只做裁剪、不产生滚动容器，overflow-y 保持 visible。第一行作为旧浏览器回退。 */
    overflow-x: hidden;
    overflow-x: clip;
}

/* 强制对齐 - 覆盖主题默认样式 */
.dbhoo-products-page .hero-inner,
.dbhoo-products-page .hero-subtitle {
    text-align: center !important;
}

.dbhoo-products-page * {
    box-sizing: border-box;
}

.dbhoo-products-page h1,
.dbhoo-products-page h2,
.dbhoo-products-page h3,
.dbhoo-products-page h4 {
    color: var(--pa-text);
    line-height: 1.3;
    font-weight: 600;
    margin: 0;
}

.dbhoo-products-page p {
    margin: 0;
}

/* ============================ Hero ============================ */
.products-hero {
    position: relative;
    padding: 96px 24px 72px;
    background:
        radial-gradient(1200px 480px at 50% -10%, rgba(99, 102, 241, 0.18), transparent 60%),
        linear-gradient(180deg, #0d1020 0%, var(--pa-bg) 100%);
    border-bottom: 1px solid var(--pa-border);
    text-align: center;
}

.hero-inner {
    max-width: var(--pa-maxw);
    margin: 0 auto;
    text-align: center !important;
}

.hero-tag {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--pa-accent-soft);
    font-weight: 600;
    margin-bottom: 18px;
    padding: 4px 14px;
    border: 1px solid var(--pa-border);
    border-radius: 999px;
    background: rgba(99, 102, 241, 0.08);
}

.hero-title {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 18px;
    background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    max-width: 1200px;
    margin: 0 auto;
    color: var(--pa-text-muted);
    font-size: clamp(15px, 1.6vw, 18px);
    text-align: center !important;
}

/* ============================ Tabs ============================ */
.products-tabs {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    padding: 16px 24px;
    background: rgba(11, 13, 23, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--pa-border);
}

.tab-btn {
    appearance: none;
    border: 1px solid var(--pa-border);
    background: transparent;
    color: var(--pa-text-muted);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 10px 26px;
    border-radius: 999px;
    cursor: pointer;
    transition: color .2s ease, background .2s ease, border-color .2s ease, transform .15s ease;
    font-family: inherit;
}

.tab-btn:hover {
    color: var(--pa-text);
    border-color: var(--pa-accent);
    background: rgba(99, 102, 241, 0.10);
}

.tab-btn.is-active {
    color: #fff;
    background: var(--pa-accent);
    border-color: var(--pa-accent);
    box-shadow: 0 6px 18px rgba(99, 102, 241, 0.35);
}

.tab-btn:focus-visible {
    outline: 2px solid var(--pa-accent-soft);
    outline-offset: 2px;
}

/* ============================ Panel ============================ */
.tab-panel {
    display: none;
    max-width: var(--pa-maxw);
    margin: 0 auto;
    padding: 56px 24px 96px;
    animation: pa-fade .35s ease;
}

.tab-panel.is-active {
    display: block;
}

@keyframes pa-fade {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.panel-head {
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--pa-border);
}

.panel-title {
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 700;
    margin-bottom: 8px;
}

.panel-tagline {
    color: var(--pa-accent-soft);
    font-size: 14px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ============================ Section ============================ */
.panel-section {
    margin-bottom: 56px;
}

.panel-section:last-child {
    margin-bottom: 0;
}

.section-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 18px;
    padding-left: 12px;
    border-left: 3px solid var(--pa-accent);
    max-width: 920px;
    margin-left: auto;
    margin-right: auto;
}

.section-text {
    color: var(--pa-text-muted);
    font-size: 15px;
    max-width: 920px;
    margin: 0 auto;
    text-align: left;
    padding-left: 15px;  /* 与 section-title 蓝色条对齐 */
    line-height: 1.8;
}

/* ============================ Feature Grid ============================ */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

.feature-card {
    background: var(--pa-card);
    border: 1px solid var(--pa-border);
    border-radius: var(--pa-radius);
    padding: 22px 22px;
    transition: border-color .2s ease, background .2s ease, transform .2s ease;
}

.feature-card:hover {
    border-color: var(--pa-accent);
    background: var(--pa-card-hover);
    transform: translateY(-2px);
}

.feature-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--pa-text);
}

.feature-card p {
    color: var(--pa-text-muted);
    font-size: 14px;
    line-height: 1.6;
}

/* ============================ Table ============================ */
.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--pa-border);
    border-radius: var(--pa-radius);
    background: var(--pa-bg-soft);
    box-shadow: var(--pa-shadow);
}

.table-wrap::-webkit-scrollbar {
    height: 10px;
}
.table-wrap::-webkit-scrollbar-track {
    background: var(--pa-bg-soft);
}
.table-wrap::-webkit-scrollbar-thumb {
    background: var(--pa-border);
    border-radius: 999px;
}
.table-wrap::-webkit-scrollbar-thumb:hover {
    background: var(--pa-accent);
}

.cmp-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    min-width: 720px;
}

.cmp-table-wide {
    min-width: 1000px;
}

.cmp-table thead th {
    position: sticky;
    top: 0;
    z-index: 2;
    background: var(--pa-table-head);
    color: var(--pa-table-head-text);
    font-weight: 600;
    text-align: left;
    padding: 16px 18px;
    border-bottom: 2px solid var(--pa-accent);
    white-space: nowrap;
}

.cmp-table thead th:first-child {
    color: var(--pa-accent-soft);
    background: var(--pa-table-head-first);
}

.cmp-table tbody td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--pa-border);
    color: var(--pa-text);
    vertical-align: top;
}

.cmp-table tbody tr:nth-child(even) td {
    background: var(--pa-table-row-alt);
}

.cmp-table tbody tr:hover td {
    background: rgba(99, 102, 241, 0.08);
}

.cmp-table tbody td:first-child {
    color: var(--pa-table-col-first-text);
    font-weight: 600;
    white-space: nowrap;
    background: var(--pa-table-col-first);
}

/* 表头粘性需配合偶数行背景，确保首列在 sticky header 下不被穿透 */
.cmp-table tbody tr:nth-child(even) td:first-child {
    background: var(--pa-table-head-first);
}

/* 状态标记 */
.cmp-table .ok {
    color: var(--pa-green);
    font-weight: 700;
    margin-right: 2px;
}

.cmp-table .x {
    color: var(--pa-red);
    font-weight: 700;
    margin-right: 4px;
}

/* ============================ 响应式 ============================ */
@media (max-width: 768px) {
    .products-hero {
        padding: 64px 18px 48px;
    }

    .products-tabs {
        padding: 12px 12px;
        gap: 6px;
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    .tab-btn {
        flex: 0 0 auto;
        padding: 9px 20px;
        font-size: 14px;
    }

    .tab-panel {
        padding: 36px 18px 64px;
    }

    .panel-section {
        margin-bottom: 40px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .cmp-table {
        font-size: 13px;
        min-width: 560px;
    }

    .cmp-table thead th,
    .cmp-table tbody td {
        padding: 12px 14px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        letter-spacing: 0;
    }

    .panel-title {
        font-size: 22px;
    }

    .section-title {
        font-size: 18px;
    }

    .feature-card {
        padding: 18px;
    }
}

/* 尊重用户动效偏好 */
@media (prefers-reduced-motion: reduce) {
    .tab-panel,
    .feature-card,
    .tab-btn {
        transition: none;
        animation: none;
    }
}
html { overflow-y: scroll !important; }

/* ============================================================
 * 浅色模式：--pa-* 设计变量重映射
 * 通过 [data-theme="light"] 手动启用；无 data-theme 时跟随系统偏好
 * ============================================================ */
:root[data-theme="light"]{
    --pa-bg:#f5f7fb;
    --pa-bg-soft:#ffffff;
    --pa-card:#ffffff;
    --pa-card-hover:#eef2f9;
    --pa-border:#d8dfe9;
    --pa-text:#0f172a;
    --pa-text-muted:#475569;
    --pa-text-dim:#64748b;
    --pa-accent:#4f46e5;
    --pa-accent-soft:#4338ca;
    --pa-green:#15803d;
    --pa-red:#dc2626;
    --pa-shadow:0 4px 24px rgba(15,23,42,0.10);
    --pa-table-head:#eef2f7;
    --pa-table-head-first:#e2e8f0;
    --pa-table-head-text:#0f172a;
    --pa-table-col-first:rgba(15,23,42,0.05);
    --pa-table-row-alt:rgba(15,23,42,0.045);
    --pa-table-col-first-text:#0f172a;
}
:root[data-theme="light"] .products-tabs{background:rgba(255,255,255,0.92)}
/* 浅色模式下 hero 标题需要深色渐变，否则白字压在浅底上不可读 */
:root[data-theme="light"] .hero-title{
    background-image:linear-gradient(180deg,#0f172a 0%,#334155 100%);
    -webkit-background-clip:text;
    background-clip:text;
    -webkit-text-fill-color:transparent;
}
/* hero 区在浅色模式下改用浅底，避免深色渐变带与浅色 token 冲突（文字发灰看不清） */
:root[data-theme="light"] .products-hero{
    background:
        radial-gradient(1200px 480px at 50% -10%, rgba(99,102,241,0.12), transparent 60%),
        linear-gradient(180deg, #eef2fb 0%, var(--pa-bg) 100%);
}
:root[data-theme="light"] .hero-tag{background:rgba(79,70,229,0.08);border-color:rgba(79,70,229,0.28)}

@media (prefers-color-scheme: light){
    :root:not([data-theme="dark"]){
        --pa-bg:#f5f7fb;
        --pa-bg-soft:#ffffff;
        --pa-card:#ffffff;
        --pa-card-hover:#eef2f9;
        --pa-border:#d8dfe9;
        --pa-text:#0f172a;
        --pa-text-muted:#475569;
        --pa-text-dim:#64748b;
        --pa-accent:#4f46e5;
        --pa-accent-soft:#4338ca;
        --pa-green:#15803d;
        --pa-red:#dc2626;
        --pa-shadow:0 4px 24px rgba(15,23,42,0.10);
        --pa-table-head:#eef2f7;
        --pa-table-head-first:#e2e8f0;
        --pa-table-head-text:#0f172a;
        --pa-table-col-first:rgba(15,23,42,0.05);
        --pa-table-row-alt:rgba(15,23,42,0.045);
        --pa-table-col-first-text:#0f172a;
    }
    :root:not([data-theme="dark"]) .products-tabs{background:rgba(255,255,255,0.92)}
    :root:not([data-theme="dark"]) .hero-title{
        background-image:linear-gradient(180deg,#0f172a 0%,#334155 100%);
        -webkit-background-clip:text;
        background-clip:text;
        -webkit-text-fill-color:transparent;
    }
    :root:not([data-theme="dark"]) .products-hero{
        background:
            radial-gradient(1200px 480px at 50% -10%, rgba(99,102,241,0.12), transparent 60%),
            linear-gradient(180deg, #eef2fb 0%, var(--pa-bg) 100%);
    }
    :root:not([data-theme="dark"]) .hero-tag{background:rgba(79,70,229,0.08);border-color:rgba(79,70,229,0.28)}
}