/* =========================
   iwai-wms-case.css
   岩井机械（昆山）有限公司 ERP + WMS案例页
   ========================= */

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

.nav-menu a.active::after {
    width: 100%;
}

/* =========================
   通用标题
   ========================= */
.section-head {
    max-width: 820px;
    margin-bottom: 42px;
}

.section-head-center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section-eyebrow,
.page-badge {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 13px;
    margin-bottom: 14px;
    border-radius: 999px;
    background: rgba(21, 94, 239, 0.08);
    border: 1px solid rgba(21, 94, 239, 0.14);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.08em;
}

.section-title {
    color: var(--text-main);
    font-size: clamp(30px, 3.2vw, 46px);
    line-height: 1.18;
    letter-spacing: -0.8px;
    margin-bottom: 14px;
}

.section-desc {
    color: var(--text-sub);
    font-size: 17px;
    line-height: 1.8;
}

.section-head-center .section-desc {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

/* =========================
   首屏 Hero
   ========================= */
.case-hero {
    position: relative;
    min-height: calc(100vh - var(--header-height));
    overflow: hidden;
    background: radial-gradient(circle at 18% 16%, rgba(21, 94, 239, 0.18), transparent 34%),
    radial-gradient(circle at 86% 28%, rgba(0, 166, 214, 0.16), transparent 32%),
    linear-gradient(135deg, #F7FAFF 0%, #EFF6FF 52%, #FFFFFF 100%);
}

/* 背景图片预留层：后续你可以只改这里 */
.case-hero-bg {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(90deg,
    rgba(247, 250, 255, 0.96) 0%,
    rgba(247, 250, 255, 0.88) 36%,
    rgba(247, 250, 255, 0.58) 64%,
    rgba(247, 250, 255, 0.18) 100%),
    linear-gradient(180deg,
            rgba(247, 250, 255, 0.28) 0%,
            rgba(247, 250, 255, 0.04) 48%,
            rgba(247, 250, 255, 0.26) 100%),
    url("/images/cases/backgrounds/iwai-hero-bg.png");
    background-size: cover;
    background-position: left center;
    background-repeat: no-repeat;
}

/* 后续如果要加真实背景图，用下面这段替换 .case-hero-bg 的 background-image
.case-hero-bg {
  background-image:
    linear-gradient(90deg, rgba(247, 250, 255, 0.96) 0%, rgba(247, 250, 255, 0.82) 42%, rgba(247, 250, 255, 0.38) 100%),
    url("../../images/cases/iwai-hero-bg.jpg");
}
*/

.case-hero-mask {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(21, 94, 239, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 94, 239, 0.055) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.62), transparent 92%);
    pointer-events: none;
}

.case-hero-inner {
    position: relative;
    z-index: 1;
    min-height: calc(100vh - var(--header-height));
    padding: 90px 0 80px;
    display: grid;
    grid-template-columns: 2.04fr 0.96fr;
    align-items: center;
    gap: 58px;
}

.case-hero-copy {
    max-width: 780px;
}

.case-hero-copy h1 {
    color: #081A33;
    font-size: clamp(38px, 4.4vw, 64px);
    line-height: 1.12;
    letter-spacing: -1.4px;
    margin-bottom: 22px;
}

.case-hero-copy p {
    color: var(--text-sub);
    font-size: 18px;
    line-height: 1.82;
}

.case-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 34px;
}

/* =========================
   客户Logo与简介卡
   ========================= */
.client-card {
    position: relative;
    padding: 30px;
    border-radius: 34px;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(221, 230, 242, 0.94);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
    overflow: hidden;
}

.client-card::before {
    content: "";
    position: absolute;
    right: -84px;
    top: -84px;
    width: 230px;
    height: 230px;
    border-radius: 50%;
    background: rgba(21, 94, 239, 0.10);
}

.client-card::after {
    content: "";
    position: absolute;
    left: -70px;
    bottom: -80px;
    width: 190px;
    height: 190px;
    border-radius: 46px;
    transform: rotate(18deg);
    background: rgba(0, 166, 214, 0.08);
}

.client-logo-box,
.client-info-list {
    position: relative;
    z-index: 1;
}

.client-logo-box {
    padding: 18px;
    border-radius: 26px;
    background: #fff;
    border: 1px solid rgba(221, 230, 242, 0.94);
    box-shadow: 0 12px 28px rgba(16, 32, 51, 0.06);
}

.client-logo-box img {
    width: 100%;
    aspect-ratio: 416 / 196;
    display: block;
    object-fit: contain;
}

.client-info-list {
    display: grid;
    gap: 16px;
    margin-top: 20px;
}

.client-info-list div {
    padding: 20px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(221, 230, 242, 0.9);
}

.client-info-list strong {
    display: block;
    margin-bottom: 8px;
    color: var(--primary-dark);
    font-size: 18px;
}

.client-info-list p {
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.72;
}

/* =========================
   上线成效大数字
   ========================= */
.result-section {
    padding: 96px 0 104px;
    background: #fff;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.result-card {
    position: relative;
    min-height: 260px;
    padding: 34px 30px;
    border-radius: 32px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.92));
    border: 1px solid rgba(221, 230, 242, 0.94);
    box-shadow: 0 18px 42px rgba(16, 32, 51, 0.08);
    overflow: hidden;
    transition: transform 0.26s ease, box-shadow 0.26s ease, border-color 0.26s ease;
}

.result-card::before {
    content: "";
    position: absolute;
    right: -72px;
    top: -72px;
    width: 190px;
    height: 190px;
    border-radius: 50%;
    background: rgba(21, 94, 239, 0.08);
}

.result-card:hover {
    transform: translateY(-8px);
    border-color: rgba(21, 94, 239, 0.30);
    box-shadow: 0 28px 60px rgba(16, 32, 51, 0.14);
}

.result-card-primary {
    background: linear-gradient(135deg, #0B3A91 0%, #155EEF 58%, #00A6D6 100%);
    color: #fff;
}

.result-card-primary::before {
    background: rgba(255, 255, 255, 0.16);
}

.result-number {
    position: relative;
    z-index: 1;
    margin-bottom: 18px;
    color: var(--primary);
    font-size: clamp(54px, 6.2vw, 58px);
    line-height: 1;
    font-weight: 1000;
    letter-spacing: -2.6px;
}

.result-card-primary .result-number {
    color: #fff;
    text-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
}

.result-card h3,
.result-card p {
    position: relative;
    z-index: 1;
}

.result-card h3 {
    color: var(--primary-dark);
    font-size: 24px;
    line-height: 1.32;
    margin-bottom: 14px;
}

.result-card p {
    color: var(--text-sub);
    font-size: 15px;
    line-height: 1.78;
}

.result-card-primary h3,
.result-card-primary p {
    color: #fff;
}

.result-card-primary p {
    color: rgba(255, 255, 255, 0.84);
}

.product-used-card {
    display: grid;
    grid-template-columns: 0.72fr 1.28fr;
    gap: 24px;
    align-items: center;
    margin-top: 28px;
    padding: 26px;
    border-radius: 30px;
    background: radial-gradient(circle at 12% 20%, rgba(21, 94, 239, 0.12), transparent 30%),
    linear-gradient(135deg, #F7FAFF, #EFF6FF);
    border: 1px solid rgba(221, 230, 242, 0.94);
    box-shadow: 0 14px 34px rgba(16, 32, 51, 0.07);
}

.product-used-card span {
    display: block;
    margin-bottom: 8px;
    color: var(--primary);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.08em;
}

.product-used-card strong {
    color: var(--primary-dark);
    font-size: 24px;
    line-height: 1.28;
}

.product-used-card ul {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.product-used-card li {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 0 14px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid rgba(221, 230, 242, 0.94);
    color: var(--primary-dark);
    font-size: 14px;
    font-weight: 800;
    box-shadow: 0 8px 18px rgba(16, 32, 51, 0.05);
}

/* =========================
   客户背景
   ========================= */
.profile-section {
    padding: 96px 0 104px;
    background: var(--bg-main);
}

.profile-inner {
    display: grid;
    grid-template-columns: 0.96fr 1.04fr;
    align-items: center;
    gap: 56px;
}

.profile-copy h2,
.flow-copy h2 {
    color: var(--text-main);
    font-size: clamp(30px, 3vw, 42px);
    line-height: 1.2;
    letter-spacing: -0.6px;
    margin-bottom: 18px;
}

.profile-copy p,
.flow-copy p {
    color: var(--text-sub);
    font-size: 17px;
    line-height: 1.82;
    margin-bottom: 16px;
}

.profile-feature-panel {
    padding: 30px;
    border-radius: 32px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(221, 230, 242, 0.94);
    box-shadow: var(--shadow-card);
}

.profile-feature-title {
    color: var(--primary-dark);
    font-size: 22px;
    font-weight: 900;
    margin-bottom: 20px;
}

.profile-feature-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.profile-feature-grid div {
    min-height: 116px;
    padding: 22px;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(247, 250, 255, 0.96), #fff);
    border: 1px solid rgba(221, 230, 242, 0.94);
}

.profile-feature-grid span {
    display: block;
    margin-bottom: 8px;
    color: var(--primary);
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 0.06em;
}

.profile-feature-grid strong {
    color: var(--primary-dark);
    font-size: 21px;
}

/* =========================
   问题与重点
   ========================= */
.challenge-section {
    padding: 96px 0 104px;
    background: #fff;
}

.challenge-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}

.challenge-card {
    min-height: 260px;
    padding: 28px;
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.92));
    border: 1px solid rgba(221, 230, 242, 0.94);
    box-shadow: 0 14px 34px rgba(16, 32, 51, 0.07);
}

.challenge-index {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    margin-bottom: 20px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    font-size: 15px;
    font-weight: 900;
}

.challenge-card h3 {
    color: var(--primary-dark);
    font-size: 21px;
    line-height: 1.34;
    margin-bottom: 12px;
}

.challenge-card p {
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.72;
}

/* =========================
   实施方案
   ========================= */
.solution-section {
    position: relative;
    padding: 96px 0 104px;
    background: var(--bg-main);
    overflow: hidden;
}

.solution-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(21, 94, 239, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 94, 239, 0.04) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.5), transparent);
    pointer-events: none;
}

.solution-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.solution-card {
    position: relative;
    min-height: 260px;
    padding: 30px;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(221, 230, 242, 0.94);
    box-shadow: 0 14px 34px rgba(16, 32, 51, 0.07);
    overflow: hidden;
    transition: transform 0.26s ease, box-shadow 0.26s ease, border-color 0.26s ease;
}

.solution-card-featured {
    grid-column: span 1;
    min-height: 360px;
}

.solution-card:hover {
    transform: translateY(-8px);
    border-color: rgba(21, 94, 239, 0.30);
    box-shadow: 0 24px 52px rgba(16, 32, 51, 0.12);
}

.solution-icon {
    width: 62px;
    height: 62px;
    display: grid;
    place-items: center;
    margin-bottom: 22px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    font-size: 22px;
    font-weight: 900;
    box-shadow: 0 14px 28px rgba(21, 94, 239, 0.24);
}

.solution-card h3 {
    color: var(--primary-dark);
    font-size: 23px;
    margin-bottom: 12px;
}

.solution-card p {
    color: var(--text-sub);
    font-size: 15px;
    line-height: 1.76;
    margin-bottom: 18px;
}

.solution-card ul {
    display: grid;
    gap: 9px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.solution-card li {
    position: relative;
    padding-left: 20px;
    color: #43536A;
    font-size: 14px;
    line-height: 1.62;
}

.solution-card li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.72em;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: 0 0 0 4px rgba(21, 94, 239, 0.08);
}

/* =========================
   业务闭环
   ========================= */
.flow-section {
    padding: 96px 0 104px;
    background: #fff;
}

.flow-inner {
    display: grid;
    grid-template-columns: 0.82fr 1.18fr;
    align-items: center;
    gap: 54px;
}

.flow-steps {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.flow-step {
    min-height: 190px;
    padding: 24px;
    border-radius: 26px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.92));
    border: 1px solid rgba(221, 230, 242, 0.94);
    box-shadow: 0 14px 34px rgba(16, 32, 51, 0.07);
}

.flow-step span {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    margin-bottom: 16px;
    border-radius: 999px;
    background: rgba(21, 94, 239, 0.08);
    color: var(--primary);
    font-size: 12px;
    font-weight: 900;
}

.flow-step strong {
    display: block;
    margin-bottom: 10px;
    color: var(--primary-dark);
    font-size: 20px;
}

.flow-step p {
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.68;
}

/* =========================
   价值总结
   ========================= */
.value-section {
    padding: 96px 0 104px;
    background: var(--bg-main);
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}

.value-card {
    min-height: 230px;
    padding: 28px;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(221, 230, 242, 0.94);
    box-shadow: 0 14px 34px rgba(16, 32, 51, 0.07);
    transition: transform 0.26s ease, box-shadow 0.26s ease, border-color 0.26s ease;
}

.value-card:hover {
    transform: translateY(-7px);
    border-color: rgba(21, 94, 239, 0.30);
    box-shadow: 0 24px 52px rgba(16, 32, 51, 0.12);
}

.value-card h3 {
    color: var(--primary-dark);
    font-size: 22px;
    margin-bottom: 12px;
}

.value-card p {
    color: var(--text-sub);
    font-size: 15px;
    line-height: 1.72;
}

/* =========================
   CTA
   ========================= */
.case-cta-section {
    padding: 78px 0;
    background: linear-gradient(135deg, #0B3A91, #155EEF);
    color: #fff;
}

.case-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
}

.case-cta-inner h2 {
    font-size: clamp(28px, 3vw, 40px);
    line-height: 1.22;
    margin-bottom: 10px;
}

.case-cta-inner p {
    max-width: 760px;
    color: rgba(255, 255, 255, 0.84);
    font-size: 16px;
    line-height: 1.78;
}

.case-cta-section .btn-primary {
    background: #fff;
    color: var(--primary-dark);
    box-shadow: 0 16px 34px rgba(0, 0, 0, 0.16);
    white-space: nowrap;
}

/* =========================
   响应式
   ========================= */
@media (max-width: 1180px) {
    .case-hero-inner,
    .profile-inner,
    .flow-inner {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 980px) {
    .result-grid {
        grid-template-columns: 1fr;
    }

    .product-used-card {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .case-hero {
        min-height: auto;
    }

    .case-hero-inner {
        min-height: auto;
        padding: 66px 0 58px;
        gap: 38px;
    }

    .case-hero-copy h1 {
        letter-spacing: -0.8px;
    }

    .case-hero-copy p {
        font-size: 16px;
    }

    .case-hero-actions {
        flex-direction: column;
    }

    .case-hero-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .client-card,
    .product-used-card {
        padding: 24px;
        border-radius: 26px;
    }

    .result-section,
    .profile-section,
    .challenge-section,
    .solution-section,
    .flow-section,
    .value-section {
        padding: 68px 0 76px;
    }

    .challenge-grid,
    .solution-grid,
    .flow-steps,
    .value-grid,
    .profile-feature-grid {
        grid-template-columns: 1fr;
    }

    .solution-card-featured {
        min-height: auto;
    }

    .result-card,
    .challenge-card,
    .solution-card,
    .flow-step,
    .value-card {
        min-height: auto;
    }

    .result-number {
        font-size: 58px;
    }

    .case-cta-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .case-cta-section .btn-primary {
        width: 100%;
        justify-content: center;
    }
}


/* =========================
   实施方案架构图
   ========================= */
.solution-flow-image {
    position: relative;
    max-width: 1180px;
    margin: 38px auto 0;
    padding: 18px;
    border-radius: 30px;
    overflow: hidden;
    background:
            radial-gradient(circle at 18% 16%, rgba(21, 94, 239, 0.10), transparent 34%),
            radial-gradient(circle at 86% 28%, rgba(0, 166, 214, 0.10), transparent 32%),
            linear-gradient(135deg, #F7FAFF 0%, #EFF6FF 52%, #FFFFFF 100%);
    border: 1px solid rgba(221, 230, 242, 0.94);
    box-shadow: 0 18px 42px rgba(16, 32, 51, 0.08);
}

.solution-flow-image img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 22px;
    object-fit: contain;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .solution-flow-image {
        margin-top: 28px;
        padding: 10px;
        border-radius: 22px;
    }

    .solution-flow-image img {
        border-radius: 16px;
    }
}