/* ============================================================
   faq.css — 常见问题（前缀 fq-）
   顶部仿搜索框 + 左侧分类 Tab + 右侧 Accordion
   ============================================================ */

/* ---------- HERO ---------- */
.fq-hero {
    background:
        radial-gradient(circle at 88% 12%, rgba(249, 115, 22, .22), transparent 55%),
        linear-gradient(160deg, var(--orange-50), #fff 70%);
    border-bottom: 1px solid var(--ink-200);
    padding: 54px 0 46px;
    text-align: center;
}
.fq-hero-eyebrow { margin-bottom: 18px; }
.fq-h1 {
    font-size: 38px;
    letter-spacing: .5px;
    margin: 6px 0 14px;
}
.fq-hero-sub {
    color: var(--ink-500);
    font-size: 15.5px;
    max-width: 620px;
    margin: 0 auto 30px;
}

/* 仿搜索框 */
.fq-search {
    display: flex;
    align-items: center;
    gap: 12px;
    max-width: 620px;
    margin: 0 auto;
    background: #fff;
    border: 2px solid var(--orange-200);
    border-radius: var(--radius-pill);
    padding: 6px 8px 6px 18px;
    box-shadow: var(--shadow);
    transition: border-color .18s ease, box-shadow .18s ease;
}
.fq-search:focus-within {
    border-color: var(--orange-500);
    box-shadow: 0 10px 30px rgba(234, 88, 12, .18);
}
.fq-search-ico { color: var(--orange-600); flex-shrink: 0; }
.fq-search-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 15px;
    color: var(--ink-900);
    min-width: 0;
}
.fq-search-input::placeholder { color: var(--ink-400); }
.fq-search-tag {
    flex-shrink: 0;
    font-size: 12px;
    font-weight: 700;
    color: var(--orange-700);
    background: var(--orange-100);
    padding: 7px 14px;
    border-radius: var(--radius-pill);
    white-space: nowrap;
}

.fq-stats {
    margin-top: 22px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--ink-500);
    font-size: 13.5px;
}
.fq-stat b { color: var(--orange-700); font-size: 16px; margin-right: 3px; }
.fq-stat-dot { color: var(--ink-300); }

/* ---------- 布局：Tab + Accordion ---------- */
.fq-wrap { padding-top: 44px; padding-bottom: 60px; }
.fq-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 28px;
    align-items: start;
}

/* 左侧 Tab */
.fq-tabs {
    position: sticky;
    top: calc(var(--head-h) + 20px);
    display: grid;
    gap: 10px;
}
.fq-tab {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    text-align: left;
    background: #fff;
    border: 1.5px solid var(--ink-200);
    border-radius: var(--radius);
    padding: 13px 15px;
    transition: border-color .18s ease, background .18s ease, box-shadow .18s ease;
}
.fq-tab:hover {
    border-color: var(--orange-300);
    background: var(--orange-50);
}
.fq-tab.is-on {
    border-color: var(--orange-600);
    background: linear-gradient(135deg, var(--orange-500), var(--orange-700));
    box-shadow: 0 10px 22px rgba(234, 88, 12, .28);
}
.fq-tab.is-on .fq-tab-body b,
.fq-tab.is-on .fq-tab-body small,
.fq-tab.is-on .fq-tab-count { color: #fff; }
.fq-tab.is-on .fq-tab-count { background: rgba(255, 255, 255, .22); }
.fq-tab-ico { font-size: 21px; flex-shrink: 0; }
.fq-tab-body { flex: 1; min-width: 0; }
.fq-tab-body b { display: block; font-size: 14.5px; color: var(--ink-900); line-height: 1.4; }
.fq-tab-body small { display: block; font-size: 12px; color: var(--ink-500); margin-top: 2px; }
.fq-tab-count {
    flex-shrink: 0;
    min-width: 26px;
    height: 26px;
    display: grid;
    place-items: center;
    font-size: 12.5px;
    font-weight: 700;
    color: var(--orange-700);
    background: var(--orange-100);
    border-radius: var(--radius-pill);
    padding: 0 7px;
}

.fq-tabs-note {
    margin-top: 6px;
    background: var(--ink-900);
    color: var(--ink-300);
    border-radius: var(--radius);
    padding: 18px;
}
.fq-tabs-note b { color: #fff; font-size: 14px; display: block; margin-bottom: 5px; }
.fq-tabs-note p { font-size: 12.5px; line-height: 1.7; margin-bottom: 10px; }
.fq-tabs-btn {
    display: inline-flex;
    align-items: center;
    height: 34px;
    padding: 0 16px;
    background: var(--orange-600);
    color: #fff !important;
    font-size: 13px;
    font-weight: 700;
    border-radius: var(--radius-pill);
}
.fq-tabs-btn:hover { background: var(--orange-500); }

/* 右侧面板 */
.fq-main { min-width: 0; }
.fq-panel { display: none; }
.fq-panel.is-active { display: block; animation: fqFade .25s ease; }
@keyframes fqFade {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.fq-panel-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
}
.fq-panel-ico {
    width: 46px; height: 46px;
    display: grid;
    place-items: center;
    font-size: 22px;
    background: var(--orange-100);
    border-radius: 13px;
    flex-shrink: 0;
}
.fq-panel-title { font-size: 21px; }
.fq-panel-desc { font-size: 13px; color: var(--ink-500); margin-top: 2px; }

/* Accordion 条目 */
.fq-item {
    background: #fff;
    border: 1.5px solid var(--ink-200);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color .18s ease, box-shadow .18s ease;
}
.fq-item[open], .fq-item:hover {
    border-color: var(--orange-300);
    box-shadow: var(--shadow-sm);
}
.fq-item[open] { border-color: var(--orange-500); }
.fq-q {
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 16px 18px;
    cursor: pointer;
    list-style: none;
    user-select: none;
}
.fq-q::-webkit-details-marker { display: none; }
.fq-q-index {
    flex-shrink: 0;
    font-size: 12px;
    font-weight: 800;
    color: var(--orange-700);
    background: var(--orange-100);
    padding: 4px 9px;
    border-radius: 7px;
    letter-spacing: .5px;
}
.fq-q-text { flex: 1; font-size: 15.5px; font-weight: 600; color: var(--ink-900); line-height: 1.55; }
.fq-q-mark {
    flex-shrink: 0;
    width: 28px; height: 28px;
    display: grid;
    place-items: center;
    font-size: 17px;
    font-weight: 400;
    color: var(--orange-600);
    background: var(--orange-50);
    border-radius: 50%;
    transition: transform .22s ease, background .22s ease;
}
.fq-item[open] .fq-q-mark { transform: rotate(45deg); background: var(--orange-600); color: #fff; }
.fq-a {
    padding: 2px 18px 18px 18px;
    border-top: 1px dashed var(--ink-200);
}
.fq-a p {
    padding-top: 13px;
    color: var(--ink-700);
    font-size: 14.5px;
    line-height: 1.85;
}
.fq-a a { font-weight: 600; }

.fq-empty {
    text-align: center;
    color: var(--ink-500);
    background: #fff;
    border: 1.5px dashed var(--ink-300);
    border-radius: var(--radius);
    padding: 30px;
    font-size: 14.5px;
}

/* ---------- 底部 CTA 卡 ---------- */
.fq-more { padding-bottom: 70px; }
.fq-more-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.fq-more-card {
    background: #fff;
    border: 1.5px solid var(--ink-200);
    border-radius: var(--radius-lg);
    padding: 26px 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.fq-more-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--orange-300);
}
.fq-more-orange {
    background: linear-gradient(140deg, var(--orange-600), var(--orange-800));
    border-color: transparent;
}
.fq-more-orange h3 { color: #fff; }
.fq-more-orange p { color: var(--orange-100); }
.fq-more-ico { font-size: 26px; }
.fq-more-card h3 { font-size: 17px; }
.fq-more-card p { font-size: 13.5px; color: var(--ink-500); line-height: 1.75; flex: 1; }
.fq-more-btn {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    height: 38px;
    padding: 0 20px;
    background: #fff;
    color: var(--orange-700) !important;
    font-size: 13.5px;
    font-weight: 700;
    border-radius: var(--radius-pill);
}
.fq-more-orange .fq-more-btn { background: #fff; }
.fq-more-btn-ghost {
    background: var(--orange-50);
    border: 1.5px solid var(--orange-200);
}
.fq-more-btn-ghost:hover { background: var(--orange-100); }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
    .fq-h1 { font-size: 30px; }
    .fq-layout {
        grid-template-columns: 1fr;
        gap: 18px;
    }
    .fq-tabs {
        position: static;
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        gap: 10px;
        padding-bottom: 6px;
    }
    .fq-tab {
        min-width: 200px;
        flex-shrink: 0;
    }
    .fq-tabs-note { display: none; }
    .fq-more-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .fq-hero { padding: 40px 0 34px; }
    .fq-h1 { font-size: 25px; }
    .fq-hero-sub { font-size: 14px; }
    .fq-search { padding-left: 14px; gap: 8px; }
    .fq-search-tag { display: none; }
    .fq-stats { font-size: 12.5px; gap: 8px; }
    .fq-wrap { padding-top: 28px; }
    .fq-tab { min-width: 168px; padding: 11px 12px; }
    .fq-q { padding: 13px 14px; gap: 10px; }
    .fq-q-text { font-size: 14.5px; }
    .fq-a { padding: 2px 14px 14px; }
    .fq-a p { font-size: 13.5px; }
    .fq-panel-title { font-size: 18px; }
    .fq-more { padding-bottom: 48px; }
}