/* 关于我们页 v2 */

.about-page-body {
    background: #f4f7fb;
}

/* ── Hero ── */
.about-hero {
    padding: 128px 0 100px;
    background: linear-gradient(160deg, #eef4fc 0%, #f8fafc 45%, #e3edf9 100%);
    position: relative;
    overflow: hidden;
}

.about-hero::before,
.about-hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.about-hero::before {
    top: -180px;
    right: -100px;
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(33, 150, 243, 0.14) 0%, transparent 68%);
}

.about-hero::after {
    bottom: -120px;
    left: -80px;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(21, 101, 192, 0.08) 0%, transparent 70%);
}

.about-hero__grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3.5rem;
    align-items: center;
}

.about-hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: #1565c0;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(33, 150, 243, 0.18);
    padding: 7px 14px;
    border-radius: 999px;
    margin-bottom: 1.35rem;
    backdrop-filter: blur(8px);
}

.about-hero__eyebrow-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.25);
}

.about-hero h1 {
    font-size: clamp(2.125rem, 4.2vw, 3.125rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: #0f172a;
    margin-bottom: 1.125rem;
    font-weight: 800;
}

.about-hero h1 em {
    font-style: normal;
    background: linear-gradient(120deg, #1976d2 0%, #0d47a1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.about-hero__lead {
    font-size: 1.0625rem;
    line-height: 1.85;
    color: #475569;
    margin-bottom: 1.75rem;
    max-width: 520px;
}

.about-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.875rem;
    margin-bottom: 2rem;
}

.about-hero__logos {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem;
}

.about-hero__logos-label {
    font-size: 0.8125rem;
    color: #64748b;
    margin-right: 0.25rem;
}

.about-hero__logos img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 2px solid #fff;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
    transition: transform 0.2s ease;
}

.about-hero__logos img:hover {
    transform: translateY(-2px) scale(1.06);
}

.about-hero__frame {
    position: relative;
    border-radius: 24px;
    padding: 10px;
    background: linear-gradient(145deg, #fff 0%, #eef4ff 100%);
    box-shadow:
        0 24px 48px rgba(15, 23, 42, 0.12),
        0 0 0 1px rgba(255, 255, 255, 0.8) inset;
}

.about-hero__frame img {
    width: 100%;
    display: block;
    border-radius: 16px;
    object-fit: cover;
    min-height: 340px;
    max-height: 420px;
}

.about-hero__badge {
    position: absolute;
    bottom: 24px;
    left: -16px;
    background: #0f172a;
    color: #fff;
    padding: 12px 18px;
    border-radius: 14px;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.25);
    font-size: 0.875rem;
    line-height: 1.45;
}

.about-hero__badge strong {
    display: block;
    font-size: 1.125rem;
    color: #93c5fd;
    margin-bottom: 2px;
}

/* ── 浮动数据卡 ── */
.about-metrics-wrap {
    margin-top: -52px;
    position: relative;
    z-index: 2;
    padding-bottom: 1rem;
}

.about-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: rgba(226, 232, 240, 0.9);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.1);
}

.about-metric {
    background: #fff;
    padding: 1.75rem 1.25rem;
    text-align: center;
    transition: background 0.25s ease;
}

.about-metric:hover {
    background: #f8fbff;
}

.about-metric__num {
    display: block;
    font-size: clamp(1.625rem, 2.5vw, 2.125rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: #0f172a;
    line-height: 1.15;
    margin-bottom: 0.35rem;
}

.about-metric__num span {
    font-size: 0.72em;
    font-weight: 700;
    color: #2196f3;
}

.about-metric__label {
    font-size: 0.875rem;
    color: #64748b;
}

/* ── 通用区块标题 ── */
.about-section {
    padding: 5.5rem 0;
}

.about-section--muted {
    background: transparent;
}

.about-section--surface {
    background: #fff;
    border-top: 1px solid #e8eef5;
    border-bottom: 1px solid #e8eef5;
}

.about-section__head {
    text-align: center;
    max-width: 620px;
    margin: 0 auto 3rem;
}

.about-section__head--left {
    text-align: left;
    margin: 0 0 1.75rem;
    max-width: none;
}

.about-section__kicker {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #2196f3;
    margin-bottom: 0.65rem;
}

.about-section__head h2 {
    font-size: clamp(1.625rem, 3vw, 2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #0f172a;
    margin-bottom: 0.65rem;
}

.about-section__head p {
    color: #64748b;
    line-height: 1.8;
    font-size: 1rem;
}

/* ── 使命 + 能力 ── */
.about-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 2.5rem;
    align-items: start;
}

.about-intro__text p {
    color: #475569;
    line-height: 1.9;
    margin-bottom: 1.125rem;
    font-size: 1.0125rem;
}

.about-intro__text p:last-of-type {
    margin-bottom: 0;
}

.about-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
    margin-top: 1.5rem;
    list-style: none;
    padding: 0;
}

.about-chips li {
    font-size: 0.8125rem;
    color: #334155;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 999px;
    padding: 8px 14px;
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04);
}

.about-pillars {
    display: grid;
    gap: 1rem;
}

.about-pillar {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.125rem;
    align-items: start;
    background: #fff;
    border-radius: 16px;
    padding: 1.35rem 1.5rem;
    border: 1px solid #e8eef5;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.about-pillar:hover {
    transform: translateY(-3px);
    border-color: rgba(33, 150, 243, 0.25);
    box-shadow: 0 12px 28px rgba(33, 150, 243, 0.1);
}

.about-pillar__icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8125rem;
    font-weight: 800;
    color: #fff;
    flex-shrink: 0;
}

.about-pillar__icon--ai {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}

.about-pillar__icon--multi {
    background: linear-gradient(135deg, #8b5cf6, #6d28d9);
}

.about-pillar__icon--privacy {
    background: linear-gradient(135deg, #10b981, #047857);
}

.about-pillar h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.4rem;
}

.about-pillar p {
    font-size: 0.9375rem;
    color: #64748b;
    line-height: 1.7;
    margin: 0;
}

/* ── 产品矩阵 ── */
.about-products-toolbar {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin: -1.5rem auto 2rem;
    flex-wrap: wrap;
}

.about-products-toolbar span {
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 999px;
    background: #e3f2fd;
    color: #1565c0;
}

.about-products-toolbar span.is-web {
    background: #ecfdf5;
    color: #047857;
}

.about-product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(272px, 1fr));
    gap: 1rem;
}

.about-product {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
    background: #fff;
    border-radius: 16px;
    padding: 1.125rem 1.25rem;
    text-decoration: none;
    color: inherit;
    border: 1px solid #e8eef5;
    transition: all 0.25s ease;
    overflow: hidden;
}

.about-product::after {
    content: "→";
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translate(8px, -50%);
    opacity: 0;
    color: #2196f3;
    font-weight: 700;
    transition: all 0.25s ease;
}

.about-product:hover {
    border-color: rgba(33, 150, 243, 0.35);
    box-shadow: 0 10px 28px rgba(33, 150, 243, 0.12);
    transform: translateY(-2px);
    padding-right: 2.25rem;
}

.about-product:hover::after {
    opacity: 1;
    transform: translate(0, -50%);
}

.about-product img {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(15, 23, 42, 0.08);
}

.about-product__body h3 {
    font-size: 0.9875rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.15rem;
}

.about-product__body p {
    font-size: 0.8125rem;
    color: #64748b;
    line-height: 1.45;
}

.about-product__tag {
    margin-left: auto;
    margin-right: 0.5rem;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    padding: 4px 9px;
    border-radius: 6px;
    flex-shrink: 0;
}

.about-product:hover .about-product__tag {
    margin-right: 1rem;
}

.about-product__tag--ios {
    background: #eff6ff;
    color: #1d4ed8;
}

.about-product__tag--web {
    background: #ecfdf5;
    color: #047857;
}

/* ── FAQ ── */
.about-faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    max-width: 960px;
    margin: 0 auto;
}

.about-faq-item {
    background: #fff;
    border-radius: 16px;
    padding: 1.5rem 1.625rem;
    border: 1px solid #e8eef5;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}

.about-faq-item:last-child {
    grid-column: 1 / -1;
}

.about-faq-item__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: #eff6ff;
    color: #1d4ed8;
    font-size: 0.8125rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.about-faq-item dt {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.55rem;
    line-height: 1.45;
}

.about-faq-item dd {
    color: #64748b;
    line-height: 1.75;
    font-size: 0.9375rem;
    margin: 0;
}

/* ── 联系 CTA ── */
.about-contact {
    padding: 0 0 5rem;
    background: transparent;
}

.about-contact__card {
    max-width: 880px;
    margin: 0 auto;
    padding: 3rem 2.5rem;
    border-radius: 24px;
    text-align: center;
    color: #fff;
    background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 48%, #2563eb 100%);
    box-shadow: 0 24px 48px rgba(29, 78, 216, 0.28);
    position: relative;
    overflow: hidden;
}

.about-contact__card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.18) 0%, transparent 45%);
    pointer-events: none;
}

.about-contact__card > * {
    position: relative;
}

.about-contact h2 {
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    font-weight: 800;
    margin-bottom: 0.65rem;
    letter-spacing: -0.02em;
}

.about-contact p {
    opacity: 0.92;
    margin-bottom: 1.75rem;
    line-height: 1.7;
    font-size: 1rem;
}

.about-contact__actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.875rem;
}

.about-contact .btn.primary {
    background: #fff;
    color: #1d4ed8;
    font-weight: 600;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.about-contact .btn.primary:hover {
    background: #f8fafc;
}

.about-contact .btn.secondary {
    border: 1.5px solid rgba(255, 255, 255, 0.55);
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.about-contact .btn.secondary:hover {
    background: rgba(255, 255, 255, 0.16);
}

/* ── 响应式 ── */
@media (max-width: 968px) {
    .about-hero__grid,
    .about-intro-grid {
        grid-template-columns: 1fr;
    }

    .about-hero__visual-col {
        order: -1;
    }

    .about-hero__frame img {
        min-height: 240px;
        max-height: 300px;
    }

    .about-hero__badge {
        left: 12px;
        bottom: 16px;
    }

    .about-metrics {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-faq-grid {
        grid-template-columns: 1fr;
    }

    .about-faq-item:last-child {
        grid-column: auto;
    }
}

@media (max-width: 560px) {
    .about-hero {
        padding-top: 110px;
    }

    .about-metrics-wrap {
        margin-top: -36px;
    }

    .about-metric {
        padding: 1.25rem 0.75rem;
    }

    .about-product__tag {
        display: none;
    }

    .about-product:hover {
        padding-right: 1.25rem;
    }

    .about-product::after {
        display: none;
    }

    .about-contact__card {
        padding: 2.25rem 1.5rem;
    }
}