/* ============================================================
   QuickQ 常见问题页 · 常显无折叠 · SEO 友好
   文件：static/css/faq.css
   ============================================================ */

.main-faq {
    --fq-bg-base:    #080c17;
    --fq-bg-dark:    #0b1220;
    --fq-bg-card:    #0f1830;
    --fq-border:        rgba(255, 255, 255, 0.07);
    --fq-border-strong: rgba(255, 255, 255, 0.12);
    --fq-primary:      #4f7cff;
    --fq-primary-dark: #2c58d9;
    --fq-accent:       #6b9bff;
    --fq-cyan:         #22d3ee;
    --fq-green:        #4ade80;
    --fq-gold:         #f5a623;
    --fq-text:       #e6ecf7;
    --fq-text-muted: #98a4bc;
    --fq-text-dim:   #5f6c85;
    --fq-radius:    16px;
    --fq-radius-sm: 10px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   1. 面包屑
   ============================================================ */
.main-faq .breadcrumb-nav {
    background: var(--fq-bg-base);
    border-bottom: 1px solid var(--fq-border);
    padding: 0.8rem 0;
    font-size: 0.8rem;
}
.main-faq .breadcrumb-nav .container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 1.5rem;
}
.main-faq .breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
    color: var(--fq-text-dim);
}
.main-faq .breadcrumb-list a {
    color: var(--fq-text-muted);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: color 0.2s;
}
.main-faq .breadcrumb-list a:hover { color: var(--fq-accent); }
.main-faq .breadcrumb-list a i { font-size: 0.7rem; }
.main-faq .breadcrumb-list .sep {
    color: #334155;
    font-size: 0.6rem;
}
.main-faq .breadcrumb-list li[aria-current="page"] {
    color: #fff;
    font-weight: 500;
}

/* ============================================================
   2. Hero
   ============================================================ */
.main-faq .faq-hero {
    position: relative;
    padding: 5.5rem 1.5rem 4.5rem;
    overflow: hidden;
    background: radial-gradient(ellipse 80% 60% at 50% 0%, #101a35 0%, var(--fq-bg-base) 70%);
    text-align: center;
    isolation: isolate;
}
.main-faq .glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(110px);
    pointer-events: none;
    z-index: 0;
}
.main-faq .glow-1 {
    width: 520px; height: 520px;
    background: radial-gradient(circle, rgba(79, 124, 255, 0.32), transparent 70%);
    top: -200px; left: 10%;
    animation: fqFloatGlow 12s ease-in-out infinite;
}
.main-faq .glow-2 {
    width: 420px; height: 420px;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.18), transparent 70%);
    bottom: -180px; right: 8%;
    animation: fqFloatGlow 14s ease-in-out infinite reverse;
}
.main-faq .glow-3 {
    width: 280px; height: 280px;
    background: radial-gradient(circle, rgba(245, 166, 35, 0.10), transparent 70%);
    top: 40%; left: 45%;
    animation: fqFloatGlow 16s ease-in-out infinite;
}
@keyframes fqFloatGlow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(30px, -20px) scale(1.08); }
}
.main-faq .grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 30%, transparent 80%);
    z-index: 0;
    pointer-events: none;
}
.main-faq .faq-hero .hero-inner {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.main-faq .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(79, 124, 255, 0.10);
    border: 1px solid rgba(79, 124, 255, 0.25);
    border-radius: 999px;
    padding: 0.4rem 1.1rem 0.4rem 0.75rem;
    font-size: 0.78rem;
    color: var(--fq-accent);
    font-weight: 500;
    letter-spacing: 0.5px;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    animation: fqFadeUp 0.6s ease both;
}
.main-faq .pulse-dot {
    display: inline-block;
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--fq-green);
    box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
    animation: fqPulseDot 2s infinite;
}
@keyframes fqPulseDot {
    0%   { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6); }
    70%  { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0); }
    100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}
.main-faq .faq-hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.12;
    letter-spacing: -0.035em;
    margin: 0 0 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    animation: fqFadeUp 0.7s 0.1s ease both;
}
.main-faq .gradient-text {
    background: linear-gradient(135deg, #6b9bff 0%, #22d3ee 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 4px 24px rgba(79, 124, 255, 0.25));
}
.main-faq .faq-hero h1 .h1-line2 {
    font-size: 0.5em;
    font-weight: 700;
    color: var(--fq-text);
    letter-spacing: -0.02em;
    opacity: 0.85;
}
.main-faq .sub-headline {
    color: var(--fq-text-muted);
    font-size: clamp(0.95rem, 1.15vw, 1.1rem);
    line-height: 1.85;
    max-width: 640px;
    margin: 0 auto 2.5rem;
    animation: fqFadeUp 0.7s 0.2s ease both;
}
.main-faq .sub-headline strong { color: #fff; font-weight: 600; }
.main-faq .sub-headline em {
    font-style: normal;
    color: var(--fq-accent);
    font-weight: 600;
}

/* 统计条 */
.main-faq .faq-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin: 0 auto 2rem;
    padding: 1.4rem 1.6rem;
    width: 100%;
    max-width: 780px;
    background: rgba(15, 24, 48, 0.55);
    border: 1px solid var(--fq-border-strong);
    border-radius: var(--fq-radius);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    animation: fqFadeUp 0.7s 0.3s ease both;
}
.main-faq .stat-item {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    text-align: left;
    padding: 0.3rem 0.5rem;
    border-right: 1px solid var(--fq-border);
}
.main-faq .stat-item:last-child { border-right: none; }
.main-faq .stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px; height: 38px;
    border-radius: 10px;
    background: rgba(79, 124, 255, 0.12);
    border: 1px solid rgba(79, 124, 255, 0.18);
    color: var(--fq-accent);
    font-size: 0.95rem;
    flex-shrink: 0;
}
.main-faq .stat-icon.green {
    background: rgba(74, 222, 128, 0.12);
    border-color: rgba(74, 222, 128, 0.20);
    color: var(--fq-green);
}
.main-faq .stat-icon.gold {
    background: rgba(245, 166, 35, 0.12);
    border-color: rgba(245, 166, 35, 0.20);
    color: #ffce5a;
}
.main-faq .stat-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}
.main-faq .stat-text strong {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 700;
}
.main-faq .stat-text span {
    color: var(--fq-text-dim);
    font-size: 0.7rem;
    margin-top: 2px;
}

/* 搜索框 */
.main-faq .search-box {
    position: relative;
    width: 100%;
    max-width: 520px;
    margin: 0 auto;
    animation: fqFadeUp 0.7s 0.4s ease both;
}
.main-faq .search-box .search-icon {
    position: absolute;
    left: 1.1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--fq-text-dim);
    font-size: 0.85rem;
    pointer-events: none;
    transition: color 0.2s;
}
.main-faq .search-box input {
    width: 100%;
    padding: 0.95rem 4.5rem 0.95rem 2.9rem;
    background: rgba(15, 24, 48, 0.7);
    border: 1px solid var(--fq-border-strong);
    border-radius: 999px;
    color: var(--fq-text);
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    transition: all 0.25s;
    backdrop-filter: blur(10px);
}
.main-faq .search-box input::placeholder {
    color: var(--fq-text-dim);
}
.main-faq .search-box input:focus {
    border-color: rgba(79, 124, 255, 0.55);
    box-shadow: 0 0 0 4px rgba(79, 124, 255, 0.10);
    background: rgba(15, 24, 48, 0.9);
}
.main-faq .search-box:focus-within .search-icon {
    color: var(--fq-accent);
}
.main-faq .search-box .search-kbd {
    position: absolute;
    right: 0.7rem;
    top: 50%;
    transform: translateY(-50%);
    font-family: 'SF Mono', 'Menlo', monospace;
    font-size: 0.62rem;
    color: var(--fq-text-dim);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--fq-border-strong);
    padding: 0.25rem 0.55rem;
    border-radius: 6px;
    letter-spacing: 0.5px;
}

@keyframes fqFadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   3. 分类导航
   ============================================================ */
.main-faq .faq-nav {
    background: var(--fq-bg-base);
    padding: 1.5rem 1.5rem;
    border-bottom: 1px solid var(--fq-border);
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}
.main-faq .faq-nav .container {
    max-width: 1000px;
    margin: 0 auto;
}
.main-faq .nav-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}
.main-faq .nav-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1.15rem;
    background: rgba(15, 24, 48, 0.6);
    border: 1px solid var(--fq-border-strong);
    border-radius: 999px;
    color: var(--fq-text-muted);
    font-size: 0.82rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.22s;
    letter-spacing: 0.2px;
}
.main-faq .nav-chip i {
    font-size: 0.75rem;
    color: var(--fq-accent);
    transition: color 0.22s;
}
.main-faq .nav-chip:hover {
    color: #fff;
    border-color: rgba(79, 124, 255, 0.40);
    background: rgba(79, 124, 255, 0.08);
    transform: translateY(-1px);
}
.main-faq .nav-chip.active {
    background: linear-gradient(135deg, var(--fq-primary), var(--fq-primary-dark));
    border-color: var(--fq-primary);
    color: #fff;
    box-shadow: 0 6px 18px rgba(79, 124, 255, 0.30);
}
.main-faq .nav-chip.active i { color: #fff; }

/* ============================================================
   4. FAQ 内容区（常显无折叠）
   ============================================================ */
.main-faq .faq-content {
    background: var(--fq-bg-base);
    padding: 4.5rem 1.5rem 5rem;
    position: relative;
}
.main-faq .faq-content .container {
    max-width: 1100px;
    margin: 0 auto;
}
.main-faq .section-header {
    text-align: center;
    margin-bottom: 3rem;
}
.main-faq .section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(79, 124, 255, 0.10);
    border: 1px solid rgba(79, 124, 255, 0.20);
    border-radius: 999px;
    padding: 0.3rem 0.95rem;
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--fq-accent);
    letter-spacing: 0.5px;
    margin-bottom: 0.9rem;
}
.main-faq .section-title {
    font-size: clamp(1.6rem, 3vw, 2.3rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
    margin: 0 0 0.6rem;
    line-height: 1.2;
}
.main-faq .section-sub {
    color: var(--fq-text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
    margin: 0;
}

/* ---------- 分类容器：单列布局，每行一张卡片 ---------- */
.main-faq .faq-category {
    display: grid;
    grid-template-columns: 1fr;     /* ★ 始终单列 */
    gap: 1.2rem;
    margin-bottom: 3.5rem;
    scroll-margin-top: 100px;
}
.main-faq .faq-category:last-child {
    margin-bottom: 0;
}

.main-faq .cat-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.9rem;
    border-bottom: 1px solid var(--fq-border);
    font-size: 1.15rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.005em;
    grid-column: 1 / -1;            /* 分类标题占满整行 */
}
.main-faq .cat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 11px;
    background: linear-gradient(135deg, rgba(79, 124, 255, 0.20), rgba(34, 211, 238, 0.10));
    border: 1px solid rgba(79, 124, 255, 0.25);
    color: #8fb2ff;
    font-size: 1rem;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(79, 124, 255, 0.15);
}
.main-faq .cat-count {
    margin-left: auto;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--fq-text-dim);
    background: rgba(79, 124, 255, 0.10);
    padding: 0.15rem 0.65rem;
    border-radius: 999px;
    letter-spacing: 0;
}

/* ---------- 常显卡片（单列下更宽敞） ---------- */
.main-faq .faq-item {
    position: relative;
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, rgba(15, 24, 48, 0.75) 0%, rgba(15, 24, 48, 0.40) 100%);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--fq-border-strong);
    border-radius: var(--fq-radius);
    padding: 1.8rem 2rem 1.6rem;    /* ★ 单列下加大内边距 */
    transition: all 0.35s cubic-bezier(0.34, 1.3, 0.64, 1);
    overflow: hidden;
    height: auto;
    width: 100%;
    scroll-margin-top: 110px;
}
.main-faq .faq-item::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(79, 124, 255, 0.6), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}
.main-faq .faq-item:hover {
    transform: translateY(-4px);
    border-color: rgba(79, 124, 255, 0.35);
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.45);
}
.main-faq .faq-item:hover::before { opacity: 1; }



/* ---------- 卡片头：图标 + 问题 ---------- */
.main-faq .faq-head {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 1.1rem;
    margin-bottom: 1.2rem;
    border-bottom: 1px solid var(--fq-border);
}
.main-faq .q-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 13px;
    background: linear-gradient(135deg, rgba(79, 124, 255, 0.20), rgba(34, 211, 238, 0.10));
    border: 1px solid rgba(79, 124, 255, 0.25);
    color: #8fb2ff;
    font-size: 1.15rem;
    flex-shrink: 0;
    transition: transform 0.3s, background 0.3s;
}
.main-faq .faq-item:hover .q-icon {
    transform: scale(1.08) rotate(-4deg);
    background: linear-gradient(135deg, rgba(79, 124, 255, 0.30), rgba(34, 211, 238, 0.18));
}
.main-faq .q-text {
    flex: 1;
    font-size: 1.15rem;             /* ★ 单列下标题加大 */
    font-weight: 700;
    color: #fff;
    line-height: 1.45;
    margin: 0;
    letter-spacing: -0.005em;
}

/* ---------- 答案：有序步骤 ---------- */
.main-faq .faq-a {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}
.main-faq .faq-a li {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    color: var(--fq-text-muted);
    font-size: 0.95rem;              /* ★ 单列下正文加大 */
    line-height: 1.8;
    padding: 0;
    margin: 0;
    list-style: none;
}
.main-faq .faq-a .step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--fq-primary), var(--fq-primary-dark));
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    box-shadow: 0 3px 10px rgba(79, 124, 255, 0.30);
    margin-top: 0.2rem;
    line-height: 1;
}
.main-faq .faq-a .step-text {
    flex: 1;
    min-width: 0;
    word-break: break-word;
}
.main-faq .faq-a strong { color: #eaf0ff; font-weight: 600; }
.main-faq .faq-a a {
    color: var(--fq-accent);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px dashed rgba(79, 124, 255, 0.4);
    transition: color 0.2s, border-color 0.2s;
}
.main-faq .faq-a a:hover {
    color: #fff;
    border-bottom-color: #fff;
}

/* ---------- 价格卡片（订阅价格问题内） ---------- */
.main-faq .price-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 0.4rem 0 1rem;
    max-width: 620px;                /* 单列下限制价格卡片宽度 */
}
.main-faq .price-card {
    position: relative;
    padding: 1.1rem 0.8rem 0.9rem;
    background: linear-gradient(180deg, rgba(15, 24, 48, 0.7), rgba(15, 24, 48, 0.4));
    border: 1px solid var(--fq-border-strong);
    border-radius: var(--fq-radius-sm);
    text-align: center;
    transition: all 0.3s ease;
}
.main-faq .price-card:hover {
    transform: translateY(-3px);
    border-color: rgba(79, 124, 255, 0.35);
}
.main-faq .price-card.best {
    border-color: rgba(245, 166, 35, 0.40);
    background: linear-gradient(180deg, rgba(245, 166, 35, 0.10), rgba(15, 24, 48, 0.5));
}
.main-faq .price-badge {
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.6rem;
    font-weight: 700;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--fq-primary), var(--fq-primary-dark));
    color: #fff;
    letter-spacing: 0.3px;
    white-space: nowrap;
    box-shadow: 0 3px 10px rgba(79, 124, 255, 0.35);
}
.main-faq .price-badge.gold {
    background: linear-gradient(135deg, #ffce5a, #f5a623);
    color: #2a1a00;
    box-shadow: 0 3px 10px rgba(245, 166, 35, 0.4);
}
.main-faq .price-name {
    font-size: 0.75rem;
    color: var(--fq-text-muted);
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 0.4rem;
}
.main-faq .price-amount {
    display: inline-flex;
    align-items: baseline;
    gap: 1px;
    color: #fff;
    font-weight: 800;
    font-size: 1.5rem;
    line-height: 1;
    letter-spacing: -0.02em;
}
.main-faq .price-amount .c {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--fq-text-muted);
    align-self: flex-start;
    margin-top: 0.1rem;
}
.main-faq .price-amount .u {
    font-size: 0.72rem;
    color: var(--fq-text-dim);
    font-weight: 500;
    margin-left: 1px;
}
.main-faq .price-card.best .price-amount {
    background: linear-gradient(135deg, #ffce5a, #f5a623);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.main-faq .price-desc {
    font-size: 0.7rem;
    color: var(--fq-text-dim);
    margin-top: 0.35rem;
}
.main-faq .price-desc strong { color: #fff; }

.main-faq .faq-note {
    display: block;
    color: var(--fq-text-dim);
    font-size: 0.85rem;
    margin: 0;
    padding: 0;
}



/* 搜索无结果 */
.main-faq .search-empty {
    text-align: center;
    padding: 5rem 1rem;
    color: var(--fq-text-dim);
}
.main-faq .search-empty i {
    display: block;
    font-size: 2.5rem;
    color: #334155;
    margin-bottom: 1rem;
}
.main-faq .search-empty p {
    font-size: 1rem;
    margin: 0 0 0.4rem;
    color: var(--fq-text-muted);
}
.main-faq .search-empty span {
    font-size: 0.85rem;
}
.main-faq .search-empty a {
    color: var(--fq-accent);
    text-decoration: none;
    font-weight: 600;
}
.main-faq .search-empty a:hover {
    text-decoration: underline;
}

/* ============================================================
   5. CTA
   ============================================================ */
.main-faq .faq-cta {
    background: var(--fq-bg-dark);
    padding: 5rem 1.5rem 6rem;
    border-top: 1px solid var(--fq-border);
    position: relative;
    overflow: hidden;
}
.main-faq .faq-cta::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 800px; height: 400px;
    background: radial-gradient(ellipse, rgba(79, 124, 255, 0.12), transparent 70%);
    pointer-events: none;
}
.main-faq .faq-cta .container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}
.main-faq .cta-box {
    text-align: center;
    padding: 3rem 2rem;
    background: linear-gradient(180deg, rgba(15, 24, 48, 0.85), rgba(15, 24, 48, 0.55));
    border: 1px solid var(--fq-border-strong);
    border-radius: 20px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}
.main-faq .cta-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px; height: 60px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(79, 124, 255, 0.25), rgba(34, 211, 238, 0.15));
    border: 1px solid rgba(79, 124, 255, 0.30);
    color: #a3c2ff;
    font-size: 1.6rem;
    margin-bottom: 1.4rem;
    box-shadow: 0 12px 40px rgba(79, 124, 255, 0.30);
}
.main-faq .cta-box h3 {
    font-size: clamp(1.3rem, 2.5vw, 1.75rem);
    font-weight: 800;
    color: #fff;
    margin: 0 0 0.7rem;
    letter-spacing: -0.02em;
}
.main-faq .cta-box p {
    color: var(--fq-text-muted);
    font-size: 0.95rem;
    margin: 0 0 1.8rem;
    line-height: 1.75;
}
.main-faq .cta-box p a {
    color: var(--fq-accent);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px dashed rgba(79, 124, 255, 0.4);
    transition: color 0.2s, border-color 0.2s;
}
.main-faq .cta-box p a:hover {
    color: #fff;
    border-bottom-color: #fff;
}
.main-faq .btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--fq-primary), var(--fq-primary-dark));
    color: #fff;
    font-weight: 600;
    font-size: 0.98rem;
    padding: 0.9rem 2.2rem;
    border-radius: 999px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 8px 28px rgba(79, 124, 255, 0.35);
    letter-spacing: 0.3px;
}
.main-faq .btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 40px rgba(79, 124, 255, 0.5);
}

/* ============================================================
   6. 响应式
   ============================================================ */
@media (max-width: 1024px) {
    .main-faq .faq-nav { position: static; }
}
@media (max-width: 820px) {
    .main-faq .faq-hero { padding: 3.5rem 1rem 3.5rem; }
    .main-faq .faq-hero h1 { font-size: clamp(1.9rem, 6vw, 2.6rem); }
    .main-faq .faq-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.7rem;
        padding: 1rem;
    }
    .main-faq .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--fq-border);
        padding: 0.4rem 0.3rem 0.55rem;
    }
    .main-faq .stat-item:nth-child(3),
    .main-faq .stat-item:nth-child(4) {
        border-bottom: none;
        padding-bottom: 0.3rem;
    }
    .main-faq .faq-content { padding: 3rem 1rem 3.5rem; }
    .main-faq .faq-item { padding: 1.5rem 1.5rem 1.4rem; }
    .main-faq .faq-head { gap: 0.85rem; padding-bottom: 1rem; margin-bottom: 1.1rem; }
    .main-faq .q-icon { width: 40px; height: 40px; font-size: 1rem; }
    .main-faq .q-text { font-size: 1.08rem; }
    .main-faq .faq-a li { font-size: 0.92rem; }
    .main-faq .cat-title { font-size: 1.05rem; }
    .main-faq .cat-icon { width: 34px; height: 34px; font-size: 0.9rem; }
}

@media (max-width: 520px) {
    .main-faq .breadcrumb-nav { font-size: 0.72rem; }
    .main-faq .breadcrumb-nav .container { padding: 0 1rem; }
    .main-faq .faq-hero { padding: 2.5rem 1rem 3rem; }
    .main-faq .faq-hero h1 { font-size: 1.75rem; }
    .main-faq .sub-headline { font-size: 0.88rem; margin-bottom: 2rem; }
    .main-faq .faq-stats { padding: 0.9rem; gap: 0.5rem; }
    .main-faq .stat-icon { width: 32px; height: 32px; font-size: 0.8rem; }
    .main-faq .stat-text strong { font-size: 0.85rem; }
    .main-faq .stat-text span { font-size: 0.65rem; }

    .main-faq .search-box input {
        padding: 0.85rem 3.6rem 0.85rem 2.6rem;
        font-size: 0.85rem;
    }
    .main-faq .search-box .search-kbd { display: none; }

    .main-faq .nav-chip {
        padding: 0.4rem 0.9rem;
        font-size: 0.75rem;
    }

    .main-faq .faq-item { padding: 1.3rem 1.2rem 1.2rem; }
    .main-faq .faq-head {
        gap: 0.7rem;
        padding-bottom: 0.9rem;
        margin-bottom: 1rem;
    }
    .main-faq .q-icon { width: 36px; height: 36px; font-size: 0.9rem; }
    .main-faq .q-text { font-size: 1rem; }
    .main-faq .faq-a { gap: 0.75rem; }
    .main-faq .faq-a li { font-size: 0.88rem; gap: 0.65rem; }
    .main-faq .faq-a .step-num {
        width: 22px;
        height: 22px;
        font-size: 0.68rem;
    }

    .main-faq .price-grid {
        grid-template-columns: 1fr;
        gap: 0.6rem;
        max-width: 100%;
    }
    .main-faq .price-card { padding: 1rem 0.8rem 0.85rem; }
    .main-faq .price-amount { font-size: 1.35rem; }

    .main-faq .cat-title { font-size: 1rem; gap: 0.55rem; }
    .main-faq .cat-count { font-size: 0.62rem; }

    .main-faq .cta-icon {
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
    }
    .main-faq .cta-box { padding: 2rem 1.4rem; }
    .main-faq .cta-box h3 { font-size: 1.15rem; }
    .main-faq .btn-cta {
        padding: 0.75rem 1.6rem;
        font-size: 0.9rem;
    }
}

/* 打印 */
@media print {
    .main-faq .glow,
    .main-faq .grid-overlay,
    .main-faq .breadcrumb-nav,
    .main-faq .faq-nav,
    .main-faq .faq-cta,
    .main-faq .search-box,
    .main-faq .backfab { display: none !important; }
    .main-faq .faq-item { break-inside: avoid; }
    .main-faq .q-text { color: #000; }
    .main-faq .faq-a { color: #333; }
}