.sell-erp-page {
    --sell-primary: #0b55d9;
    --sell-primary-dark: #063c9a;
    --sell-accent: #d6001c;
    --sell-gold: #c99a2e;
    --sell-cyan: #16b7c8;
    --sell-ink: #172033;
    --sell-text: #4a5872;
    --sell-muted: #7b879d;
    --sell-line: #e6ebf4;
    --sell-soft: #f6f9ff;
    --sell-card: #ffffff;
    --sell-shadow: 0 18px 48px rgba(25, 59, 118, 0.12);
    color: var(--sell-text);
    background: #ffffff;
    font-family: "Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

.sell-erp-page *,
.sell-erp-page *::before,
.sell-erp-page *::after {
    box-sizing: border-box;
}

.sell-erp-page img {
    max-width: 100%;
    height: auto;
}

.sell-hero {
    position: relative;
    overflow: hidden;
    min-height: 560px;
    padding: 128px 0 92px;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.9) 28%, rgba(255, 255, 255, 0.42) 48%, rgba(255, 255, 255, 0.0) 65%),
        url("../images/generated/img2test.webp");
    background-position: center;
    background-size: cover;
}

/* ::before 已移除 — 原黄色蒙层会使图片灰蒙 */

.sell-hero-inner {
    position: relative;
    z-index: 1;
    width: min(1200px, calc(100% - 64px));
    margin: 0 auto;
    min-height: 340px;
    display: flex;
    align-items: center;
}

.sell-hero-copy {
    max-width: 610px;
}

.sell-title-row {
    display: flex;
    align-items: center;
    margin-bottom: 24px;
}

.sell-hero h1 {
    margin: 0;
    color: #111820;
    font-size: 40px;
    font-weight: 800;
    line-height: 1.18;
    letter-spacing: 0;
}

.sell-hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
}

.sell-hero-badges span {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 14px;
    border-radius: 4px;
    color: #8b4a00;
    background: rgba(255, 208, 83, 0.24);
    font-size: 14px;
    font-weight: 600;
}

.sell-hero-badges span + span {
    color: #44505f;
    background: rgba(228, 232, 236, 0.76);
}

.sell-hero-desc {
    margin: 0 0 38px;
    max-width: 560px;
    color: var(--sell-text);
    font-size: 16px;
    line-height: 1.75;
}

.sell-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.sell-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 128px;
    height: 52px;
    padding: 0 26px;
    border-radius: 999px;
    font-size: 16px;
    font-weight: 600;
    transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease, background 0.24s ease;
}

.sell-button.primary {
    color: #ffffff;
    background: #111111;
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.16);
}

.sell-button.secondary {
    color: #111820;
    border: 1px solid rgba(17, 24, 32, 0.42);
    background: rgba(255, 255, 255, 0.34);
    backdrop-filter: blur(4px);
}

.sell-button:hover {
    transform: translateY(-2px);
    color: inherit;
}

.sell-button.primary:hover {
    color: #ffffff;
    box-shadow: 0 18px 34px rgba(0, 0, 0, 0.2);
}

.sell-section-nav {
    position: sticky;
    top: 78px;
    z-index: 20;
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid var(--sell-line);
    border-bottom: 1px solid var(--sell-line);
    box-shadow: 0 8px 24px rgba(18, 39, 77, 0.06);
    backdrop-filter: blur(12px);
}

.sell-section-nav-inner {
    width: min(1200px, calc(100% - 64px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.sell-section-nav a {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 68px;
    color: var(--sell-ink);
    font-size: 16px;
    font-weight: 500;
}

.sell-section-nav a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 36px;
    height: 3px;
    border-radius: 999px 999px 0 0;
    background: var(--sell-primary);
    transform: translateX(-50%) scaleX(0);
    transform-origin: center;
    transition: transform 0.22s ease;
}

.sell-section-nav a.active {
    color: var(--sell-primary);
    font-weight: 700;
}

.sell-section-nav a.active::after,
.sell-section-nav a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.sell-section {
    position: relative;
    padding: 88px 0;
    scroll-margin-top: 164px;
}

.sell-section.soft {
    background: var(--sell-soft);
}

.sell-container {
    width: min(1200px, calc(100% - 64px));
    margin: 0 auto;
}

.sell-section-heading {
    max-width: 760px;
    margin: 0 auto 42px;
    text-align: center;
}

.sell-section-heading.align-left {
    margin-left: 0;
    text-align: left;
}

.sell-section-heading h2 {
    margin: 0 0 10px;
    color: var(--sell-ink);
    font-size: 34px;
    font-weight: 700;
    line-height: 1.25;
}

.sell-section-heading p {
    margin: 0;
    color: var(--sell-primary);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0;
}

.sell-overview-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.98fr) minmax(0, 1.02fr);
    gap: 32px;
    align-items: stretch;
    padding: 28px;
    border: 1px solid rgba(230, 235, 244, 0.96);
    border-radius: 12px;
    background: linear-gradient(145deg, #ffffff 0%, #fbfdff 56%, #f5f9ff 100%);
    box-shadow: var(--sell-shadow);
    overflow: hidden;
}

.sell-overview-copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 100%;
    padding: 4px 8px 4px 4px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.sell-overview-copy p {
    margin: 0 0 18px;
    color: var(--sell-text);
    font-size: 16px;
    line-height: 1.85;
}

.sell-overview-copy p:last-child {
    margin-bottom: 0;
}

.sell-overview-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.sell-overview-tags span {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 12px;
    border-radius: 999px;
    color: var(--sell-primary);
    background: rgba(23, 100, 255, 0.08);
    font-size: 13px;
    font-weight: 600;
}

.sell-overview-image {
    display: flex;
    align-items: stretch;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.sell-architecture-card {
    padding: 22px;
    border: 1px solid var(--sell-line);
    border-radius: 8px;
    background: linear-gradient(145deg, #ffffff, #f8fbff);
    box-shadow: var(--sell-shadow);
}

.sell-overview-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: 8px;
}

.sell-architecture-card img {
    display: block;
    width: 100%;
    border-radius: 6px;
}

.sell-overview-copy .sell-section-heading {
    max-width: none;
    margin: 0 0 22px;
}

.sell-overview-copy .sell-section-heading h2 {
    margin: 0;
}

.sell-advantage-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 18px;
}

.sell-advantage-card,
.sell-feature-card,
.sell-case-card {
    border: 1px solid var(--sell-line);
    border-radius: 8px;
    background: var(--sell-card);
    box-shadow: 0 10px 28px rgba(18, 39, 77, 0.06);
    transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.sell-advantage-card {
    min-height: 256px;
    padding: 24px 20px;
}

.sell-advantage-card:hover,
.sell-feature-card:hover,
.sell-case-card:hover {
    transform: translateY(-4px);
    border-color: rgba(23, 100, 255, 0.24);
    box-shadow: 0 18px 42px rgba(18, 39, 77, 0.12);
}

.sell-card-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    margin-bottom: 22px;
    border-radius: 8px;
    color: var(--sell-primary);
    background: linear-gradient(135deg, rgba(23, 100, 255, 0.1), rgba(36, 200, 219, 0.12));
    font-size: 15px;
    font-weight: 800;
}

.sell-advantage-card h3,
.sell-feature-card h3 {
    margin: 0 0 12px;
    color: var(--sell-ink);
    font-size: 19px;
    font-weight: 700;
    line-height: 1.35;
}

.sell-advantage-card p,
.sell-feature-card p {
    margin: 0;
    color: var(--sell-text);
    font-size: 14px;
    line-height: 1.72;
}

.sell-advantage-card .sell-card-detail {
    margin-top: 10px;
    color: var(--sell-muted);
    font-size: 13px;
}

.sell-architecture-wrap {
    max-width: 1080px;
    margin: 0 auto;
}

.sell-architecture-card {
    padding: 28px;
}

.sell-case-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

.sell-case-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: 28px;
}

.sell-case-head {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 18px;
}

.sell-case-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 64px;
    width: 64px;
    height: 64px;
    border: 1px solid var(--sell-line);
    border-radius: 8px;
    background: #ffffff;
}

.sell-case-logo img {
    max-width: 46px;
    max-height: 46px;
    object-fit: contain;
}

.sell-case-head h3 {
    margin: 0 0 6px;
    color: var(--sell-ink);
    font-size: 20px;
    font-weight: 700;
}

.sell-case-head span {
    color: var(--sell-primary);
    font-size: 14px;
    font-weight: 600;
}

.sell-case-card p {
    margin: 0;
    color: var(--sell-text);
    font-size: 14px;
    line-height: 1.8;
}

.sell-feature-lead {
    max-width: 860px;
    margin: -18px auto 38px;
    color: var(--sell-muted);
    font-size: 16px;
    line-height: 1.75;
    text-align: center;
}

.sell-feature-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.sell-feature-card {
    min-height: 230px;
    padding: 24px;
}

.sell-feature-card .sell-card-num {
    margin-bottom: 18px;
    color: var(--sell-accent);
    background: linear-gradient(135deg, rgba(255, 138, 31, 0.12), rgba(23, 100, 255, 0.08));
}

.sell-reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.sell-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1199px) {
    .sell-overview-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 22px;
    }

    .sell-hero {
        padding-top: 108px;
    }

    .sell-advantage-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .sell-feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 767px) {
    .sell-hero {
        min-height: auto;
        padding: 96px 0 42px;
        background-position: 58% center;
    }

    .sell-hero-inner,
    .sell-container,
    .sell-section-nav-inner {
        width: min(100% - 32px, 1200px);
    }

    .sell-hero h1 {
        font-size: 30px;
    }

    .sell-title-row {
        margin-bottom: 18px;
    }

    .sell-hero-desc {
        margin-bottom: 28px;
    }

    .sell-section-nav {
        top: 64px;
        overflow-x: auto;
    }

    .sell-section-nav-inner {
        display: flex;
        min-width: 580px;
    }

    .sell-section-nav a {
        flex: 1 0 auto;
        height: 58px;
        font-size: 14px;
    }

    .sell-section {
        padding: 64px 0;
        scroll-margin-top: 132px;
    }

    .sell-section-heading h2 {
        font-size: 28px;
    }

    .sell-overview-copy,
    .sell-architecture-card,
    .sell-case-card,
    .sell-feature-card,
    .sell-advantage-card {
        padding: 22px;
    }

    .sell-overview-copy {
        padding: 2px;
    }

    .sell-overview-image img {
        aspect-ratio: 17 / 10;
        object-fit: cover;
        height: auto;
    }

    .sell-advantage-grid,
    .sell-case-grid,
    .sell-feature-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    .sell-erp-page *,
    .sell-erp-page *::before,
    .sell-erp-page *::after {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}