.aviation-rhenium-intro,
.homepage-procurement-assurance {
    padding: 32px 0;
}

.aviation-rhenium-intro__inner,
.homepage-procurement-assurance {
    max-width: 1400px;
    margin: 0 auto;
}

.aviation-rhenium-intro__header,
.homepage-procurement-assurance__header {
    max-width: 920px;
    margin: 0 auto 24px;
    text-align: center;
}

.aviation-rhenium-intro__eyebrow,
.homepage-procurement-assurance__eyebrow {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(2, 116, 190, 0.08);
    color: var(--ast-global-color-0, #0274be);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.aviation-rhenium-intro__main-title,
.homepage-procurement-assurance__title {
    margin: 0 0 14px;
    color: var(--ast-global-color-3, #1e293b);
    font-size: clamp(1.9rem, 3vw, 2.5rem);
    line-height: 1.2;
}

.aviation-rhenium-intro__lead,
.homepage-procurement-assurance__intro {
    margin: 0;
    color: var(--ast-global-color-2, #64748b);
    line-height: 1.85;
    font-size: 1rem;
}

.aviation-rhenium-intro__metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.aviation-rhenium-intro__metric-card,
.aviation-rhenium-intro__block,
.homepage-procurement-assurance__card {
    background: #ffffff;
    border: 1px solid var(--ast-border-color, #e2e8f0);
    border-radius: 3px;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.04);
}

.aviation-rhenium-intro__metric-card {
    padding: 18px 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.aviation-rhenium-intro__metric-card strong {
    font-size: 1rem;
    color: var(--ast-global-color-3, #1e293b);
}

.aviation-rhenium-intro__metric-card span {
    color: var(--ast-global-color-2, #64748b);
    line-height: 1.7;
    font-size: 0.94rem;
}

.aviation-rhenium-intro__blocks,
.homepage-procurement-assurance__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.aviation-rhenium-intro__block {
    padding: 24px;
}

.aviation-rhenium-intro__block-title,
.homepage-procurement-assurance__card-title {
    margin: 0 0 12px;
    color: var(--ast-global-color-3, #1e293b);
    font-size: 1.12rem;
}

.aviation-rhenium-intro__block-text {
    margin: 0;
    color: var(--ast-global-color-2, #64748b);
    line-height: 1.8;
}

.homepage-procurement-assurance__card {
    padding: 24px;
}

.homepage-procurement-assurance__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.homepage-procurement-assurance__list li {
    position: relative;
    padding-left: 18px;
    color: var(--ast-global-color-2, #64748b);
    line-height: 1.75;
    font-size: 0.95rem;
}

.homepage-procurement-assurance__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: var(--ast-global-color-0, #0274be);
}

.homepage-procurement-assurance__footer {
    margin-top: 20px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 20px;
    align-items: center;
    padding: 24px 26px;
    border-radius: 3px;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.homepage-procurement-assurance__footer-copy strong {
    display: block;
    margin-bottom: 8px;
    color: #ffffff;
    font-size: 1.05rem;
}

.homepage-procurement-assurance__footer-copy p {
    margin: 0;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.85;
}

.homepage-procurement-assurance__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.homepage-procurement-assurance__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 126px;
    padding: 12px 18px;
    border-radius: 3px;
    text-decoration: none;
    font-weight: 600;
    transition: all .2s ease;
}

.homepage-procurement-assurance__btn--primary {
    background: #ffffff;
    color: var(--ast-global-color-0, #0274be);
}

.homepage-procurement-assurance__btn--secondary {
    background: transparent;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.28);
}

.homepage-procurement-assurance__btn:hover {
    transform: translateY(-2px);
}

.homepage-procurement-assurance__btn--primary:hover {
    color: var(--ast-global-color-0, #0274be);
}

.homepage-procurement-assurance__btn--secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

.homepage-supply-demand-board {
    padding: 28px 0 18px;
}

.homepage-supply-demand-board__inner {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.35fr);
    gap: 22px;
    align-items: stretch;
}

.homepage-supply-demand-board__intro {
    padding: 28px;
    border-radius: 3px;
    background:
        radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 42%),
        linear-gradient(160deg, #0f172a 0%, #1e293b 100%);
    color: #ffffff;
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.12);
}

.homepage-supply-demand-board__eyebrow {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    margin-bottom: 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.78);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.homepage-supply-demand-board__title {
    margin: 0 0 12px;
    color: #ffffff;
    font-size: clamp(1.8rem, 2.8vw, 2.35rem);
    line-height: 1.2;
}

.homepage-supply-demand-board__lead {
    margin: 0;
    color: rgba(255, 255, 255, 0.82);
    line-height: 1.85;
}

.homepage-supply-demand-board__points {
    list-style: none;
    margin: 20px 0 0;
    padding: 0;
    display: grid;
    gap: 12px;
}

.homepage-supply-demand-board__points li {
    position: relative;
    padding-left: 18px;
    color: rgba(255, 255, 255, 0.78);
    line-height: 1.75;
    font-size: 0.95rem;
}

.homepage-supply-demand-board__points li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 11px;
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: #38bdf8;
}

.homepage-supply-demand-board__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.homepage-supply-demand-board__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 136px;
    padding: 12px 18px;
    border-radius: 3px;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid transparent;
    transition: transform .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.homepage-supply-demand-board__btn:hover {
    transform: translateY(-2px);
}

.homepage-supply-demand-board__btn:focus-visible {
    outline: 3px solid rgba(56, 189, 248, 0.45);
    outline-offset: 3px;
}

.homepage-supply-demand-board .homepage-supply-demand-board__btn--primary {
    background: #ffffff;
    color: var(--ast-global-color-0, #0274be);
}

.homepage-supply-demand-board .homepage-supply-demand-board__btn--primary:hover {
    color: var(--ast-global-color-0, #0274be);
}

.homepage-supply-demand-board .homepage-supply-demand-board__btn--secondary {
    border-color: rgba(226, 232, 240, 0.72);
    color: #f8fafc;
    background: rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.homepage-supply-demand-board .homepage-supply-demand-board__btn--secondary:hover {
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

.homepage-supply-demand-board__panel {
    padding: 24px;
    border: 1px solid var(--ast-border-color, #e2e8f0);
    border-radius: 3px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.homepage-supply-demand-board__panel-head {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 18px;
}

.homepage-supply-demand-board__panel-head strong {
    display: block;
    margin-bottom: 6px;
    color: var(--ast-global-color-3, #1e293b);
    font-size: 1.08rem;
}

.homepage-supply-demand-board__panel-head p,
.homepage-supply-demand-board__panel-meta {
    margin: 0;
    color: var(--ast-global-color-2, #64748b);
    font-size: 0.93rem;
    line-height: 1.7;
}

.homepage-supply-demand-board__viewport {
    position: relative;
}

.homepage-supply-demand-board__viewport--scroll {
    height: 470px;
    overflow: hidden;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 9%, #000 91%, transparent 100%);
    mask-image: linear-gradient(to bottom, transparent 0, #000 9%, #000 91%, transparent 100%);
}

.homepage-supply-demand-board__track {
    display: flex;
    flex-direction: column;
}

.homepage-supply-demand-board__viewport--scroll .homepage-supply-demand-board__track {
    animation: homepageSupplyDemandScroll 26s linear infinite;
}

.homepage-supply-demand-board__viewport--scroll:hover .homepage-supply-demand-board__track {
    animation-play-state: paused;
}

.homepage-supply-demand-board__group {
    display: grid;
    gap: 14px;
}

.homepage-supply-demand-board__item,
.homepage-supply-demand-board__empty {
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 3px;
    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.05);
}

.homepage-supply-demand-board__item {
    padding: 18px 18px 16px;
}

.homepage-supply-demand-board__item-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.homepage-supply-demand-board__type {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .04em;
}

.homepage-supply-demand-board__type--supply {
    background: rgba(2, 132, 199, 0.12);
    color: #0369a1;
}

.homepage-supply-demand-board__type--demand {
    background: rgba(15, 118, 110, 0.12);
    color: #0f766e;
}

.homepage-supply-demand-board__time {
    color: var(--ast-global-color-2, #64748b);
    font-size: 0.82rem;
    white-space: nowrap;
}

.homepage-supply-demand-board__item-title {
    margin: 0 0 12px;
    color: var(--ast-global-color-3, #1e293b);
    font-size: 1.08rem;
    line-height: 1.45;
}

.homepage-supply-demand-board__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.homepage-supply-demand-board__meta span {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: #f8fafc;
    color: var(--ast-global-color-2, #64748b);
    font-size: 0.85rem;
    line-height: 1.4;
}

.homepage-supply-demand-board__price {
    margin-top: 14px;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
}

.homepage-supply-demand-board__price span {
    color: var(--ast-global-color-2, #64748b);
    font-size: 0.9rem;
}

.homepage-supply-demand-board__price strong {
    color: var(--ast-global-color-3, #1e293b);
    font-size: 1.16rem;
    line-height: 1.2;
}

.homepage-supply-demand-board__note {
    margin: 12px 0 0;
    color: var(--ast-global-color-2, #64748b);
    line-height: 1.75;
    font-size: 0.92rem;
}

.homepage-supply-demand-board__contact {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid rgba(148, 163, 184, 0.18);
}

.homepage-supply-demand-board__contact-label {
    display: block;
    margin-bottom: 10px;
    color: var(--ast-global-color-2, #64748b);
    font-size: 0.88rem;
    font-weight: 600;
}

.homepage-supply-demand-board__contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.homepage-supply-demand-board__contact-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 108px;
    padding: 10px 14px;
    border: none;
    border-radius: 3px;
    text-decoration: none;
    cursor: pointer;
    font: inherit;
    font-size: 0.92rem;
    font-weight: 600;
    transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease;
}

.homepage-supply-demand-board__contact-btn:hover {
    transform: translateY(-1px);
}

.homepage-supply-demand-board__contact-btn--wechat {
    background: rgba(7, 193, 96, 0.1);
    color: #0f9f54;
    box-shadow: inset 0 0 0 1px rgba(7, 193, 96, 0.16);
}

.homepage-supply-demand-board__contact-btn--wechat:hover {
    background: rgba(7, 193, 96, 0.16);
    color: #0f9f54;
}

.homepage-supply-demand-board__contact-btn--phone {
    background: rgba(2, 116, 190, 0.08);
    color: var(--ast-global-color-0, #0274be);
    box-shadow: inset 0 0 0 1px rgba(2, 116, 190, 0.14);
}

.homepage-supply-demand-board__contact-btn--phone:hover {
    background: rgba(2, 116, 190, 0.14);
    color: var(--ast-global-color-0, #0274be);
}

.homepage-supply-demand-board__wechat-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(15, 23, 42, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity .22s ease;
    z-index: 9999;
}

.homepage-supply-demand-board__wechat-modal.is-active {
    opacity: 1;
    pointer-events: auto;
}

.homepage-supply-demand-board__wechat-modal-card {
    position: relative;
    width: min(100%, 380px);
    padding: 28px 24px 24px;
    border-radius: 20px;
    background: #ffffff;
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.22);
    text-align: center;
}

.homepage-supply-demand-board__wechat-modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 999px;
    background: #f8fafc;
    color: #0f172a;
    cursor: pointer;
    font-size: 1.4rem;
    line-height: 1;
}

.homepage-supply-demand-board__wechat-modal-header {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.homepage-supply-demand-board__wechat-modal-header span {
    color: var(--ast-global-color-3, #1e293b);
    font-size: 1.18rem;
    font-weight: 700;
}

.homepage-supply-demand-board__wechat-modal-header small {
    color: var(--ast-global-color-2, #64748b);
    font-size: 0.9rem;
    line-height: 1.6;
}

.homepage-supply-demand-board__wechat-modal-qr {
    width: min(100%, 216px);
    margin: 18px auto 0;
    padding: 14px;
    border-radius: 18px;
    background: linear-gradient(145deg, #f8fafc, #eef7f1);
}

.homepage-supply-demand-board__wechat-modal-qr img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 12px;
}

.homepage-supply-demand-board__wechat-modal-hint {
    margin: 14px 0 0;
    color: var(--ast-global-color-2, #64748b);
    font-size: 0.9rem;
    line-height: 1.6;
}

.homepage-supply-demand-board__wechat-modal-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 16px;
    color: var(--ast-global-color-0, #0274be);
    font-size: 0.92rem;
    font-weight: 600;
    text-decoration: none;
}

.homepage-supply-demand-board__wechat-modal-link:hover {
    text-decoration: underline;
}

.homepage-supply-demand-board__empty {
    padding: 28px 24px;
    text-align: center;
}

.homepage-supply-demand-board__empty strong {
    display: block;
    margin-bottom: 10px;
    color: var(--ast-global-color-3, #1e293b);
    font-size: 1.05rem;
}

.homepage-supply-demand-board__empty p {
    margin: 0 0 18px;
    color: var(--ast-global-color-2, #64748b);
    line-height: 1.8;
}

@keyframes homepageSupplyDemandScroll {
    from {
        transform: translateY(0);
    }

    to {
        transform: translateY(-50%);
    }
}

@media (max-width: 1200px) {
    .aviation-rhenium-intro__metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .homepage-supply-demand-board__inner {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1024px) {
    .aviation-rhenium-intro__blocks,
    .homepage-procurement-assurance__grid,
    .homepage-procurement-assurance__footer {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .aviation-rhenium-intro,
    .homepage-procurement-assurance {
        padding: 24px 0;
    }

    .aviation-rhenium-intro__metrics {
        grid-template-columns: 1fr;
    }

    .homepage-supply-demand-board {
        padding: 24px 0 10px;
    }

    .homepage-supply-demand-board__intro,
    .homepage-supply-demand-board__panel {
        padding: 22px 18px;
    }

    .homepage-supply-demand-board__panel-head {
        flex-direction: column;
    }

    .homepage-supply-demand-board__viewport--scroll {
        height: auto;
        overflow: visible;
        -webkit-mask-image: none;
        mask-image: none;
    }

    .homepage-supply-demand-board__viewport--scroll .homepage-supply-demand-board__track {
        animation: none;
    }

    .homepage-supply-demand-board__viewport--scroll .homepage-supply-demand-board__group[aria-hidden="true"] {
        display: none;
    }

    .homepage-supply-demand-board__actions {
        flex-direction: column;
    }

    .homepage-supply-demand-board__btn {
        width: 100%;
    }

    .homepage-supply-demand-board__price {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
    }

    .homepage-supply-demand-board__contact-actions {
        flex-direction: column;
    }

    .homepage-supply-demand-board__contact-btn {
        width: 100%;
    }

    .homepage-supply-demand-board__wechat-modal {
        padding: 16px;
    }

    .homepage-supply-demand-board__wechat-modal-card {
        padding: 24px 18px 20px;
    }

    .homepage-procurement-assurance__footer {
        padding: 22px 18px;
    }

    .homepage-procurement-assurance__actions {
        flex-direction: column;
    }

    .homepage-procurement-assurance__btn {
        width: 100%;
    }
}