/* ---------- 设计变量 ---------- */
:root {
    /* 主色 */
    --c-primary: #165DFF;
    --c-primary-mid: #2E74FF;
    --c-primary-light: #4C8DFF;
    --c-primary-pale: #7AA8FF;
    --c-danger: #F53F3F;

    /* 文字 */
    --c-text: #1D2939;
    --c-heading: #1D2129;
    --c-body: #4E5969;
    --c-muted: #86909C;
    --c-faint: #C9CDD4;

    /* 边框与背景 */
    --c-border: #E5E6EB;
    --c-border-pain: #FFE0D6;
    --c-border-feature: #D6E4FF;
    --c-border-value: #B8D4FF;
    --c-bg-soft: #F5F8FF;
    --c-bg-shadowbox: #EEF3FF;
    --c-bg-reserved: #FAFBFF;

    /* 圆角 */
    --r-md: 12px;
    --r-lg: 16px;

    /* 布局 */
    --container-w: 1200px;
}


img {
    display: block;
    max-width: 100%;
}

button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

/* SVG 图标定义容器：不参与渲染 */
.icon-defs {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* ---------- 通用布局 ---------- */
.container {
    position: relative;
    width: var(--container-w);
    max-width: 100%;
    margin: 0 auto;
}

.section {
    position: relative;
    width: 100%;
    padding: 64px 0;
}

/* 区块标题 */
.section-head {
    max-width: 672px;
    margin: 0 auto 48px;
    text-align: center;
}

.section-head--wide {
    margin-bottom: 64px;
}

.section-head--loose {
    margin-bottom: 48px;
}

.section-title {
    margin: 0px 0px 24px;
    font-size: 36px;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.025em;
    color: var(--c-heading);
}

.section-desc {
    margin: 0px 0px 48px;
    font-size: 18px;
    line-height: 1.625;
    color: var(--c-muted);
}

/* 背景装饰光斑 */
.orb {
    position: absolute;
    border-radius: 9999px;
    pointer-events: none;
}

/* ---------- 入场动画（由 JS 的 IntersectionObserver 添加 is-visible） ---------- */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.config-card.reveal,
.benefit-item.reveal {
    transform: translateY(30px);
}

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

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ============================================================
   一、业务场景（Tab 切换）
   ============================================================ */
.section--scenario {
    background-image: linear-gradient(to bottom, #F8FAFF, #fff);
}

.orb--scenario {
    top: 80px;
    right: 0;
    width: 400px;
    height: 400px;
    background-color: rgba(22, 93, 255, 0.04);
    filter: blur(64px);
}

/* Tab 导航 */
.tab-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
}

.tab-btn {
    padding: 12px 24px;
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
    background-color: #fff;
    color: var(--c-body);
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    border-color: rgba(22, 93, 255, 0.4);
    color: var(--c-primary);
}

.tab-btn.is-active {
    border-color: transparent;
    background-color: var(--c-primary);
    color: #fff;
    box-shadow: 0 8px 24px rgba(22, 93, 255, 0.3);
}

.tab-btn__no {
    margin-right: 6px;
    opacity: 0.7;
}

/* Tab 面板 */
.tab-panel {
    display: none;
}

.tab-panel.is-active {
    display: block;
}

.scenario-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: start;
}

/* 左：配图 */
.scenario-figure {
    position: relative;
    display: flex;
    justify-content: center;
}

.scenario-figure__frame {
    position: relative;
    flex-shrink: 0;
    width: 574px;
    max-width: 100%;
    height: 470px;
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    overflow: hidden;
    background-color: #fff;
    box-shadow: 0 12px 40px rgba(22, 93, 255, 0.1);
}

.scenario-figure__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background-color: #f9fafb;
}

/* 右下方错位的色块 */
.scenario-figure__shadow {
    position: absolute;
    right: -16px;
    bottom: -16px;
    z-index: -1;
    width: 574px;
    max-width: 100%;
    height: 470px;
    border-radius: var(--r-lg);
    background-color: var(--c-bg-shadowbox);
}

/* 右：文字说明 */
.scenario-detail {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 12px;
    height: 470px;
}

.scenario-detail__head {
    margin-bottom: 12px;
}

.scenario-detail__title {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    color: var(--c-heading);
}

/* 痛点 / 功能 / 价值 卡片 */
.info-card {
    display: flex;
    flex: 1 1 0;
    flex-direction: column;
    justify-content: center;
    padding: 16px 20px;
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
    background-color: #fff;
}

.info-card--pain {
    border-color: var(--c-border-pain);
}

.info-card--feature {
    border-color: var(--c-border-feature);
}

.info-card--value {
    border-color: var(--c-border-value);
    background-image: linear-gradient(to right, #E8F3FF, #F0F7FF);
}

.info-card__head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.info-card__icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.info-card__icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.info-card--pain .info-card__icon {
    color: var(--c-danger);
}

.info-card__label {
    font-size: 16px;
    font-weight: 600;
    color: var(--c-heading);
}

.info-card__text {
    padding-left: 28px;
    font-size: 16px;
    line-height: 1.625;
    color: #4B5563;
}

.info-card--value .info-card__text {
    color: var(--c-heading);
    font-weight: 500;
}

/* ============================================================
   二、灵活自主配置
   ============================================================ */
.section--config {
    background-color: #fff;
}

.config-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.config-card {
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    overflow: hidden;
    background-color: #fff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out, box-shadow 0.3s ease;
}

.config-card:hover {
    box-shadow: 0 16px 40px rgba(22, 93, 255, 0.15);
}

.config-card__media {
    position: relative;
    aspect-ratio: 2 / 1;
    overflow: hidden;
    background-color: var(--c-primary);
    background-image: linear-gradient(to bottom right, var(--c-primary), var(--c-primary-mid), var(--c-primary-light));
    background-size: contain;
    background-position: center center;
    background-repeat: no-repeat;
}

.config-card__body {
    padding: 12px 24px 24px;
}

.config-card__title {
    margin: 0px 0px 12px;
    font-size: 18px;
    font-weight: 700;
    color: var(--c-heading);
}

.config-card__text {
    font-size: 14px;
    line-height: 1.625;
    color: #4B5563;
}

/* ============================================================
   三、企业回报数据
   ============================================================ */
.section--benefit {
    overflow: hidden;
    background-color: var(--c-bg-soft);
}

.orb--benefit-1 {
    top: 25%;
    left: 25%;
    width: 500px;
    height: 500px;
    transform: translate(-50%, -50%);
    background-color: rgba(22, 93, 255, 0.08);
    filter: blur(120px);
}

.orb--benefit-2 {
    right: 25%;
    bottom: 25%;
    width: 450px;
    height: 450px;
    transform: translate(50%, 50%);
    background-color: rgba(76, 141, 255, 0.06);
    filter: blur(100px);
}

.orb--benefit-3 {
    top: 50%;
    right: 40px;
    width: 350px;
    height: 350px;
    transform: translateY(-50%);
    background-color: rgba(122, 168, 255, 0.05);
    filter: blur(90px);
}

.benefit-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px 0;
}

.benefit-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 24px;
    text-align: center;
}

.benefit-item__figure {
    margin-bottom: 12px;
}

.benefit-item__number {
    font-size: 60px;
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.025em;
    color: var(--c-primary);
}

.benefit-item__unit {
    margin-bottom: 20px;
    font-size: 18px;
    font-weight: 500;
    color: var(--c-muted);
}

.benefit-item__title {
    margin: 0px 0px 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--c-heading);
}

.benefit-item__text {
    max-width: 340px;
    font-size: 16px;
    line-height: 1.625;
    color: var(--c-muted);
}

/* ============================================================
   四、预留区域
   ============================================================ */
.section--reserved {
    padding: 64px 0;
    background-color: #fff;
}

.reserved-box {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    padding: 64px 0;
    border: 2px dashed var(--c-border);
    border-radius: var(--r-lg);
    background-color: var(--c-bg-reserved);
}

.reserved-box__inner {
    text-align: center;
}

.reserved-box__title {
    margin-bottom: 8px;
    font-size: 18px;
    font-weight: 600;
    color: var(--c-muted);
}

.reserved-box__text {
    font-size: 14px;
    color: var(--c-faint);
}

/* ============================================================
   响应式（断点沿用 Tailwind：sm 640 / md 768 / lg 1024）
   ============================================================ */
@media (min-width: 640px) {
    .config-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .benefit-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0;
    }
}

@media (min-width: 1024px) {
    .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .scenario-figure {
        justify-content: flex-start;
    }

    .config-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 窄屏补充：原页面容器无左右内边距，小屏会贴边，此处补上（如需完全还原可删除本段） */
@media (max-width: 1240px) {
    .container {
        padding-left: 20px;
        padding-right: 20px;
    }
}

@media (max-width: 1023px) {
    .section {
        padding: 64px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .section-desc {
        font-size: 16px;
    }

    /* 窄屏下配图与文案改为自适应高度，避免固定 470px 造成内容溢出 */
    .scenario-figure__frame,
    .scenario-figure__shadow {
        height: auto;
        aspect-ratio: 574 / 470;
    }

    .scenario-detail {
        height: auto;
    }

    .benefit-item__number {
        font-size: 48px;
    }
}