/* ============================================================
   TurLamAI portal site.css — per-site sections only.
   Shared frame lives in family.css (site-kit); do not duplicate.
   ============================================================ */

/* ---------- Section rhythm ---------- */
.portal-section { padding: 76px 0 64px; scroll-margin-top: 40px; }
.portal-section--alt {
    background: var(--kit-bg-elevated);
    border-block: 1px solid var(--kit-border);
}
.portal-section .section-header { margin-bottom: 44px; }
.portal-section .kit-h2 { max-width: none; }
.portal-section .kit-lead { margin-top: 14px; }

/* ---------- Work groups ---------- */
.work-group { margin-bottom: 56px; }
.work-group:last-child { margin-bottom: 0; }
.work-group-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1em;
    font-weight: 600;
    color: var(--kit-text-2);
    margin: 0 0 18px;
}
.work-group-title::before {
    content: "";
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    border-radius: 2px;
    background: var(--kit-accent);
}
.work-group-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--kit-border);
}

/* ---------- Product cards ---------- */
.product-grid { display: grid; gap: 20px; }
.product-grid--2 { grid-template-columns: repeat(2, 1fr); }
.product-grid--2 .product-card:last-child:nth-child(odd) { grid-column: 1 / -1; }
.product-grid--2 .product-card--wide { grid-column: 1 / -1; }

.product-card {
    display: flex;
    flex-direction: column;
    padding: 26px 28px;
    background: var(--kit-bg-elevated);
    border: 1px solid var(--kit-border);
    border-radius: var(--kit-radius-l);
    transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.product-card:hover {
    border-color: var(--kit-border-strong);
    box-shadow: var(--kit-shadow);
    transform: translateY(-2px);
}
.product-name-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.product-name {
    font-family: var(--kit-font-sans);
    font-size: 1.15em;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0;
}
.product-tagline { font-size: 1.02em; font-weight: 600; color: var(--kit-text); margin: 8px 0 10px; line-height: 1.4; }
.product-desc { font-size: 0.92em; color: var(--kit-text-2); line-height: 1.65; margin: 0 0 6px; }
.product-cta {
    display: inline-block;
    margin-top: auto;
    padding-top: 14px;
    color: var(--kit-accent-strong);
    font-size: 0.9em;
    font-weight: 600;
    transition: transform 0.15s ease;
}
html[data-theme="dark"] .product-cta { color: var(--kit-accent); }
.product-card:hover .product-cta { transform: translateX(3px); }

.product-card--wide { flex-direction: row; align-items: center; gap: 36px; padding: 30px 34px; }
.product-card--wide .product-wide-head { flex-shrink: 0; }
.product-card--wide .product-name { font-size: 1.3em; }
.product-card--wide .product-tagline { margin: 6px 0 0; }
.product-card--wide .product-desc { flex: 1; margin-bottom: 0; }
.product-card--wide .product-cta { margin-top: 0; padding-top: 0; flex-shrink: 0; }

/* ---------- WeChat funnel ---------- */
.wechat-layout { display: flex; align-items: center; justify-content: center; gap: 56px; }
.wechat-points { max-width: 460px; display: flex; flex-direction: column; gap: 26px; }
.wechat-point { display: flex; gap: 14px; }
.wechat-point-dot {
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--kit-accent);
    margin-top: 9px;
}
.wechat-point h3 { font-size: 1.05em; margin: 0 0 4px; }
.wechat-point p { font-size: 0.9em; color: var(--kit-text-2); line-height: 1.6; margin: 0; }
.wechat-qr-card {
    flex-shrink: 0;
    background: var(--kit-bg-elevated);
    border: 1px solid var(--kit-border);
    border-radius: var(--kit-radius-l);
    padding: 28px;
    text-align: center;
    box-shadow: var(--kit-shadow);
}
.wechat-qr-card img { display: block; width: 208px; height: 208px; border-radius: 12px; }
.wechat-qr-title { font-weight: 600; font-size: 0.95em; margin: 16px 0 0; }
.wechat-qr-sub { font-size: 0.8em; color: var(--kit-text-3); margin: 4px 0 0; }

/* ---------- OSS cards ---------- */
.oss-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.oss-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 20px 22px;
    background: var(--kit-bg-elevated);
    border: 1px solid var(--kit-border);
    border-radius: var(--kit-radius-l);
    transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.oss-card:hover {
    border-color: var(--kit-border-strong);
    box-shadow: var(--kit-shadow);
    transform: translateY(-2px);
}
.oss-head { display: flex; align-items: center; gap: 8px; }
.oss-name { font-size: 1.05em; font-weight: 700; margin: 0; margin-right: auto; }
.oss-desc { font-size: 0.88em; color: var(--kit-text-2); line-height: 1.6; margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
    .product-grid--2 { grid-template-columns: repeat(2, 1fr); }
    .product-card--wide { flex-direction: column; align-items: flex-start; gap: 0; }
    .product-card--wide .product-wide-head { margin-bottom: 12px; }
    .product-card--wide .product-desc { margin-bottom: 4px; }
    .product-card--wide .product-cta { margin-top: auto; padding-top: 14px; }
}
@media (max-width: 768px) {
    .portal-section { padding: 48px 0 40px; }
    .work-group { margin-bottom: 44px; }
    .product-grid--2 { grid-template-columns: 1fr; }
    .wechat-layout { flex-direction: column; gap: 36px; }
    .wechat-points { max-width: 100%; }
}
@media (max-width: 480px) {
    .kit-hero h1 { font-size: clamp(1.75rem, 7.5vw, 2rem); }
    .oss-grid { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- Icon visibility per theme ---------- */
html[data-theme="light"] .kit-icon-moon { display: none; }
html[data-theme="dark"] .kit-icon-sun { display: none; }