/* =============================================
   WHOLESALE POLICY PAGE
   ============================================= */

.page-wholesale {
    margin-top: var(--header-h);
    min-height: 100vh;
    background: var(--color-bg);
}

/* ── Hero ─────────────────────────────────── */
.policy-hero {
    background: var(--color-primary);
    padding: clamp(5rem, 12vw, 10rem) 0 clamp(3.75rem, 8vw, 7.5rem);
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* Subtle diagonal texture overlay */
.policy-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        -45deg,
        transparent,
        transparent 3rem,
        rgba(226, 176, 126, 0.04) 3rem,
        rgba(226, 176, 126, 0.04) 3.0625rem
    );
    pointer-events: none;
}

.policy-hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4.5vw, 4rem);
    color: var(--color-bg);
    margin-bottom: 1rem;
    line-height: 1.15;
    font-weight: 600;
    position: relative;
}

/* Gold decorative rule under h1 */
.policy-hero h1::after {
    content: '';
    display: block;
    width: 3rem;
    height: 0.125rem;
    background: var(--color-secondary);
    margin: 0.875rem auto 0;
}

.policy-hero p {
    font-family: var(--font-nav);
    font-size: clamp(0.8125rem, 1.2vw, 1rem);
    letter-spacing: 0.1em;
    color: rgba(245, 245, 240, 0.75);
    position: relative;
}

/* ── FAQ Section ──────────────────────────── */
.policy-faq {
    padding: clamp(3.75rem, 10vh, 7.5rem) 0;
    background: var(--color-bg);
}

.faq-outer {
    max-width: 82rem;
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 3.75rem);
}

/* Three-column grid */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1.5rem, 3vw, 3rem);
    align-items: start;
}

/* ── Column ───────────────────────────────── */
.faq-col {
    display: flex;
    flex-direction: column;
    gap: clamp(0.5rem, 1vw, 0.75rem);
}

.faq-col-title {
    font-family: var(--font-heading);
    font-size: clamp(1.125rem, 1.6vw, 1.5rem);
    color: var(--color-primary);
    font-weight: 600;
    letter-spacing: 0.01em;
    padding-left: 1rem;
    border-left: 0.1875rem solid var(--color-secondary);
    margin-bottom: clamp(0.75rem, 2vw, 1.5rem);
    line-height: 1.3;
}

/* ── FAQ Item ─────────────────────────────── */
.faq-item {
    background: var(--color-white);
    border-radius: 0.375rem;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 0.25rem 1.25rem rgba(0, 75, 73, 0.08);
}

/* ── Toggle Button ────────────────────────── */
/*
 * min-height 锁定行高，使所有 collapsed 行等高。
 * align-items: center 保证多行文字也能居中对齐。
 * padding 在垂直方向只作为 min-height 不足时的保底，
 * 保持克制感（高端品牌风格：紧凑但不拥挤）。
 */
.faq-toggle {
    width: 100%;
    background: var(--color-white);
    border: none;
    min-height: 3.25rem;
    padding: 0.625rem clamp(1rem, 2vw, 1.5rem);
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    transition: background 0.2s ease;
    font-family: inherit;
    appearance: none;
    position: relative;
    box-sizing: border-box;
}

/* Gold left-accent on active */
.faq-toggle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0.1875rem;
    background: var(--color-secondary);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.3s ease;
}

.faq-toggle[aria-expanded="true"]::before {
    transform: scaleY(1);
}

.faq-toggle:hover {
    background: rgba(0, 75, 73, 0.02);
}

.faq-toggle:focus-visible {
    outline: 0.125rem solid var(--color-secondary);
    outline-offset: -0.125rem;
}

.faq-question {
    font-family: var(--font-nav);
    font-size: clamp(0.75rem, 0.95vw, 0.875rem);
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 0.02em;
    line-height: 1.45;
}

.faq-toggle[aria-expanded="true"] .faq-question {
    color: var(--color-primary);
}

/* Chevron icon */
.faq-toggle svg {
    width: clamp(1rem, 1.5vw, 1.25rem);
    height: clamp(1rem, 1.5vw, 1.25rem);
    flex-shrink: 0;
    stroke: var(--color-secondary);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-toggle[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

/* ── Answer Panel ─────────────────────────── */
/*
 * grid-template-rows: 0fr → 1fr 方案：
 * - 无需预设 max-height 魔法数字，真实内容高度驱动动画
 * - 展开/收起速度均匀，视觉完全丝滑
 * - 需要 faq-answer 作为 grid 容器，faq-answer-inner 作为唯一子项（min-height:0）
 */
.faq-answer {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s ease;
    background: rgba(0, 75, 73, 0.02);
}

.faq-answer.is-open {
    grid-template-rows: 1fr;
    opacity: 1;
}

.faq-answer-inner {
    overflow: hidden;
    min-height: 0;
    padding: clamp(0.875rem, 1.5vw, 1.25rem) clamp(1.25rem, 2.5vw, 2rem) clamp(1rem, 1.75vw, 1.5rem);
}

.faq-answer p {
    font-family: var(--font-body);
    font-size: clamp(0.8125rem, 0.95vw, 0.9375rem);
    line-height: 1.8;
    color: var(--color-text);
    margin: 0 0 0.75rem;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer ul {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0;
}

.faq-answer li {
    font-family: var(--font-body);
    font-size: clamp(0.8125rem, 0.95vw, 0.9375rem);
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 0.5rem;
    padding-left: 1.25rem;
    position: relative;
}

/* Custom bullet — gold dash */
.faq-answer li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-size: 0.75rem;
    top: 0.35em;
    line-height: 1;
}

.faq-answer strong {
    color: var(--color-primary);
    font-weight: 600;
}

.faq-answer a {
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 0.0625rem solid transparent;
    transition: border-color 0.2s, color 0.2s;
}

.faq-answer a:hover {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* ── CTA Section ──────────────────────────── */
.policy-cta {
    background: var(--color-primary);
    padding: clamp(3.75rem, 10vh, 6.25rem) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.policy-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        -45deg,
        transparent,
        transparent 3rem,
        rgba(226, 176, 126, 0.04) 3rem,
        rgba(226, 176, 126, 0.04) 3.0625rem
    );
    pointer-events: none;
}

.policy-cta h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 3.5vw, 3rem);
    color: var(--color-bg);
    margin-bottom: 0.75rem;
    font-weight: 600;
    position: relative;
}

.policy-cta p {
    font-family: var(--font-nav);
    font-size: clamp(0.8125rem, 1.1vw, 1rem);
    color: rgba(245, 245, 240, 0.7);
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
    position: relative;
}

.btn-contact-wholesale {
    display: inline-block;
    background: var(--color-secondary);
    color: var(--color-primary);
    font-family: var(--font-nav);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: clamp(0.875rem, 1.5vw, 1.125rem) clamp(2rem, 4vw, 3.25rem);
    border: 0.125rem solid var(--color-secondary);
    border-radius: 0.25rem;
    text-decoration: none;
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    position: relative;
}

.btn-contact-wholesale:hover {
    background: transparent;
    color: var(--color-secondary);
}

/* ── Responsive ───────────────────────────── */

/* Tablet: 3 cols → 2 cols */
@media (max-width: 64rem) {
    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: clamp(1.5rem, 4vw, 2.5rem);
    }
}

/* Mobile: 2 cols → 1 col */
@media (max-width: 48rem) {
    .faq-grid {
        grid-template-columns: 1fr;
        gap: clamp(2rem, 5vw, 3rem);
    }

    .policy-hero {
        padding: clamp(3.75rem, 8vh, 6.25rem) 0 clamp(2.5rem, 6vh, 5rem);
    }
}

@media (max-width: 30rem) {
    .faq-outer {
        padding: 0 clamp(1rem, 3vw, 1.5rem);
    }
}