/* =========================================
   Slide 24: Q&A 与致谢
   风格：品牌终章 + 联系方式中枢
   ========================================= */

#slide-24 {
    position: absolute;
    overflow: hidden;
    padding: 52px 62px 48px;
    color: var(--color-text-main);
    display: flex;
    flex-direction: column;
    background:
        radial-gradient(circle at 12% 20%, rgba(30, 96, 248, 0.16) 0%, rgba(30, 96, 248, 0) 26%),
        radial-gradient(circle at 82% 22%, rgba(14, 165, 233, 0.11) 0%, rgba(14, 165, 233, 0) 24%),
        radial-gradient(circle at 70% 82%, rgba(16, 185, 129, 0.11) 0%, rgba(16, 185, 129, 0) 24%),
        linear-gradient(135deg, #FFFFFF 0%, #F7FAFF 52%, #EEF5FF 100%);
}

.slide-24-bg-grid,
.slide-24-bg-glow,
.slide-24-bg-orbit {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.slide-24-bg-grid {
    background-image:
        linear-gradient(rgba(30, 96, 248, 0.032) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 96, 248, 0.032) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at 50% 44%, rgba(0, 0, 0, 0.98) 34%, rgba(0, 0, 0, 0.5) 76%, transparent 100%);
    animation: slide-24-grid-drift 34s linear infinite;
}

.slide-24-bg-glow {
    background:
        radial-gradient(circle at 28% 58%, rgba(30, 96, 248, 0.1) 0%, rgba(30, 96, 248, 0) 20%),
        radial-gradient(circle at 72% 40%, rgba(14, 165, 233, 0.1) 0%, rgba(14, 165, 233, 0) 18%),
        radial-gradient(circle at 86% 70%, rgba(16, 185, 129, 0.08) 0%, rgba(16, 185, 129, 0) 18%);
}

.slide-24-bg-orbit::before,
.slide-24-bg-orbit::after {
    content: '';
    position: absolute;
    border-radius: 50%;
}

.slide-24-bg-orbit::before {
    width: 1040px;
    height: 1040px;
    left: -140px;
    top: 116px;
    border: 1px solid rgba(30, 96, 248, 0.08);
}

.slide-24-bg-orbit::after {
    width: 620px;
    height: 620px;
    right: 96px;
    top: 148px;
    border: 1px solid rgba(14, 165, 233, 0.08);
}

.slide-24-shell {
    position: relative;
    z-index: 2;
}

.slide-24-shell {
    flex: 1;
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(0, 0.94fr) minmax(720px, 1.06fr);
    gap: 34px;
    align-items: stretch;
}

.slide-24-left {
    padding: 86px 16px 18px 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    opacity: 0;
    transform: translateX(-28px);
    transition: opacity 0.78s ease 0.12s, transform 0.78s ease 0.12s;
}

.slide-24-brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 26px;
    color: #0F172A;
    font-size: 34px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.slide-24-brand-lockup img {
    width: 74px;
    height: 74px;
    object-fit: contain;
    filter: drop-shadow(0 10px 24px rgba(30, 96, 248, 0.18));
}

.slide-24-title {
    margin-bottom: 18px;
    font-size: 174px;
    line-height: 0.9;
    font-weight: 800;
    letter-spacing: -0.06em;
    color: #0F172A;
    text-shadow: 0 18px 48px rgba(30, 96, 248, 0.12);
}

.slide-24-subtitle {
    max-width: 700px;
    font-size: 27px;
    line-height: 1.58;
    font-weight: 500;
    color: #475569;
}

.slide-24-action-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 34px;
}

.slide-24-action-strip span {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(30, 96, 248, 0.14);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.05);
    color: #1E3A8A;
    font-size: 17px;
    font-weight: 700;
}

.slide-24-cta-band {
    width: min(720px, 100%);
    margin-top: 26px;
    padding: 26px 30px 28px;
    border-radius: 30px;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.96) 0%, rgba(241, 247, 255, 0.96) 100%);
    border: 1px solid rgba(30, 96, 248, 0.14);
    box-shadow: 0 28px 56px rgba(15, 23, 42, 0.08);
}

.cta-label {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 12px;
    border-radius: 999px;
    margin-bottom: 16px;
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.slide-24-cta-band strong {
    display: block;
    margin-bottom: 10px;
    font-size: 32px;
    line-height: 1.22;
    color: #0F172A;
}

.slide-24-cta-band p {
    font-size: 20px;
    line-height: 1.65;
    color: #475569;
}

.slide-24-right {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 82px 0 18px;
    opacity: 0;
    transform: translateX(28px);
    transition: opacity 0.82s ease 0.26s, transform 0.82s ease 0.26s;
}

.slide-24-scan-card {
    position: relative;
    width: 100%;
    max-width: 716px;
    padding: 28px 32px 28px;
    border-radius: 38px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(30, 96, 248, 0.13);
    box-shadow: 0 30px 60px rgba(15, 23, 42, 0.11);
    backdrop-filter: blur(10px);
}

.slide-24-scan-card::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 5px;
    border-radius: 38px 38px 0 0;
    background: linear-gradient(90deg, rgba(30, 96, 248, 0.92), rgba(14, 165, 233, 0.82), rgba(16, 185, 129, 0.76));
}

.slide-24-scan-head {
    margin-bottom: 24px;
}

.slide-24-scan-head h3 {
    margin-bottom: 12px;
    font-size: 36px;
    color: #0F172A;
}

.slide-24-scan-head p {
    margin-bottom: 0;
    font-size: 19px;
    line-height: 1.66;
    color: #475569;
}

.slide-24-qr-stage {
    display: flex;
    justify-content: center;
    margin-bottom: 22px;
}

.slide-24-qr-frame {
    width: 100%;
    max-width: 432px;
    padding: 18px;
    border-radius: 32px;
    background: linear-gradient(135deg, #FFFFFF 0%, #F8FBFF 100%);
    border: 1px solid rgba(30, 96, 248, 0.12);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 18px 40px rgba(15, 23, 42, 0.08);
}

.slide-24-qr-frame img {
    display: block;
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 22px;
}

.slide-24-contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1.28fr) minmax(0, 1fr);
    gap: 14px;
}

.contact-grid-item {
    min-height: 80px;
    padding: 16px 18px 18px;
    border-radius: 22px;
    background: linear-gradient(135deg, rgba(248, 250, 252, 0.96), rgba(239, 246, 255, 0.96));
    border: 1px solid rgba(30, 96, 248, 0.08);
}

.contact-type {
    display: block;
    margin-bottom: 10px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #64748B;
    text-transform: uppercase;
}

.contact-grid-item strong {
    display: block;
    font-size: 17px;
    line-height: 1.5;
    color: #0F172A;
    word-break: break-word;
}

.slide-24-scan-footer {
    position: relative;
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 18px;
    padding-top: 19px;
}

.slide-24-scan-footer::before {
    content: '';
    position: absolute;
    left: 10px;
    right: 10px;
    top: 0;
    height: 1px;
    background: rgba(30, 96, 248, 0.08);
}

.slide-24-scan-footer span {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 14px;
    border-radius: 999px;
    background: rgba(30, 96, 248, 0.06);
    color: #1D4ED8;
    font-size: 14px;
    font-weight: 700;
}

#slide-24.active .slide-24-left,
#slide-24.active .slide-24-right {
    opacity: 1;
    transform: translate(0, 0);
}

@keyframes slide-24-grid-drift {
    0% {
        transform: translate3d(0, 0, 0);
    }
    100% {
        transform: translate3d(48px, 32px, 0);
    }
}