/* =========================================================
   亿活官网 v2 首页样式（基于 Bootstrap 3 扩展）
   设计 Token：对齐《亿活设计规范·基础 Token》色板体系
   （primary #3C9CFF 蓝 / 文本 4 级 / 边框 3 级 / 背景 3 级）
   ========================================================= */
:root {
    /* ---- 品牌色 / 状态色 ---- */
    --color-primary: #3C9CFF;
    --color-primary-light: #A0CFFF;
    --color-primary-dark: #2B7CD9;
    --color-secondary: #7D8BFF;
    --color-success: #5AC725;
    --color-warning: #F9AE3D;
    --color-error: #F56C6C;
    --color-info: #909399;

    /* ---- 文本 4 级 ---- */
    --color-text-primary: #303133;
    --color-text-regular: #606266;
    --color-text-secondary: #909399;
    --color-text-placeholder: #C0C4CC;

    /* ---- 边框 3 级 ---- */
    --color-border-base: #DCDFE6;
    --color-border-light: #E4E7ED;
    --color-border-lighter: #EBEEF5;

    /* ---- 背景 ---- */
    --color-bg-base: #FFFFFF;
    --color-bg-page: #F7F8FA;
    --color-bg-overlay: #939496;

    /* ---- 派生 Token（规范色的工程化延伸） ---- */
    --color-primary-tint: #ECF5FF;        /* primary 8% 淡底 */
    --color-primary-tint-border: #CFE6FF; /* primary 30% 淡边 */
    --color-warning-deep: #C07C1A;        /* warning 可读文本派生 */
    --color-success-tint: #EAF8E4;        /* success 淡底 */
    --color-bg-overlay-rgba: rgba(148, 149, 152, 0.92);

    /* ---- 布局 ---- */
    --yh-radius: 14px;
}

html,
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--color-text-primary);
}

a {
    color: var(--color-primary-dark);
}

/* ---------- 导航 ---------- */
.yh-nav {
    background: var(--color-bg-base);
    border: none;
    box-shadow: 0 1px 0 var(--color-border-lighter);
    margin-bottom: 0 !important;
}

.yh-nav .navbar-brand {
    font-weight: 700;
    color: var(--color-text-primary) !important;
    display: flex;
    align-items: center;
    gap: 8px;
}

.yh-nav .navbar-brand .yh-logo-dot {
    width: 26px;
    height: 26px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.yh-nav .navbar-nav > li > a {
    color: var(--color-text-regular);
    font-weight: 500;
}

.yh-nav .navbar-nav > .active > a,
.yh-nav .navbar-nav > li > a:hover,
.yh-nav .navbar-nav > li > a:focus {
    color: var(--color-primary-dark);
    background: transparent;
}

.yh-nav-hotline {
    border: 1px solid var(--color-primary);
    color: var(--color-primary-dark) !important;
    border-radius: 999px;
    padding: 9px 16px !important;
    margin-left: 8px;
    font-weight: 600 !important;
}

.yh-nav-hotline:hover {
    background: var(--color-primary) !important;
    color: #fff !important;
}

/* ---------- Hero ---------- */
.yh-hero {
    position: relative;
    background: #18202c url("../imag/banner1.jpg") center 30% no-repeat;
    background-size: cover;
    color: #fff;
    overflow: hidden;
}

.yh-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(23, 30, 42, 0.94) 0%, rgba(23, 30, 42, 0.82) 45%, rgba(43, 124, 217, 0.5) 100%);
}

.yh-hero-inner {
    position: relative;
    padding: 84px 0 96px;
}

.yh-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 14px;
    letter-spacing: 1px;
    margin-bottom: 22px;
}

.yh-eyebrow .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary-light);
}

.yh-hero h1 {
    font-size: clamp(34px, 4.2vw, 56px);
    font-weight: 800;
    line-height: 1.25;
    margin: 0 0 18px;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}

.yh-hero h1 .hl {
    color: var(--color-primary);
}

.yh-hero-sub {
    font-size: clamp(16px, 1.4vw, 20px);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.86);
    max-width: 640px;
    margin: 0 0 30px;
}

.yh-hero-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 42px;
    padding: 0;
    margin: 0 0 6px;
    list-style: none;
}

.yh-hero-metrics .num {
    font-size: 28px;
    font-weight: 800;
    color: #fff;
}

.yh-hero-metrics .num em {
    font-style: normal;
    color: var(--color-primary-light);
    font-size: 20px;
    margin-left: 2px;
}

.yh-hero-metrics .label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.72);
}

/* ---------- 双角色入口 ---------- */
.yh-entry {
    position: relative;
    margin-top: 52px;
    background: var(--color-bg-base);
    border-radius: var(--yh-radius);
    box-shadow: 0 24px 60px rgba(16, 24, 36, 0.35);
    overflow: hidden;
    color: var(--color-text-primary);
}

.yh-entry-tabs {
    display: flex;
    background: var(--color-bg-page);
    border-bottom: 1px solid var(--color-border-lighter);
}

.yh-entry-tab {
    flex: 1;
    border: none;
    background: transparent;
    padding: 16px 10px;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
}

.yh-entry-tab .small {
    display: block;
    font-size: 12px;
    font-weight: 400;
    margin-top: 3px;
}

.yh-entry-tab.active {
    background: var(--color-bg-base);
    color: var(--color-primary-dark);
    box-shadow: inset 0 3px 0 var(--color-primary);
}

.yh-entry-pane {
    display: none;
    padding: 30px 34px 34px;
}

.yh-entry-pane.active {
    display: block;
}

.yh-entry-pane h3 {
    margin: 0 0 6px;
    font-weight: 800;
    font-size: 22px;
}

.yh-entry-pane .desc {
    color: var(--color-text-regular);
    margin: 0 0 20px;
}

.yh-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 22px;
    padding: 0;
    list-style: none;
}

.yh-chip {
    background: var(--color-primary-tint);
    color: var(--color-primary-dark);
    border: 1px solid var(--color-primary-tint-border);
    border-radius: 999px;
    padding: 5px 14px;
    font-size: 13px;
}

.yh-btn-brand {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border: none;
    color: #fff;
    font-weight: 700;
    padding: 12px 26px;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(60, 156, 255, 0.35);
}

.yh-btn-brand:hover,
.yh-btn-brand:focus {
    color: #fff;
    opacity: 0.92;
}

.yh-btn-ghost {
    background: var(--color-bg-base);
    border: 1px solid var(--color-border-base);
    color: var(--color-text-primary);
    font-weight: 600;
    padding: 12px 26px;
    border-radius: 10px;
    margin-left: 10px;
}

.yh-btn-ghost:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
}

.yh-entry-worker {
    display: flex;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
}

.yh-entry-worker .qr {
    width: 150px;
    height: 150px;
    border-radius: 12px;
    border: 1px solid var(--color-border-light);
    padding: 6px;
    background: var(--color-bg-base);
    flex: none;
}

/* ---------- 通用 Section ---------- */
.yh-section {
    padding: 74px 0;
}

.yh-section.alt {
    background: var(--color-bg-page);
}

.yh-section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 46px;
}

.yh-section-head .kicker {
    display: inline-block;
    color: var(--color-primary-dark);
    background: var(--color-primary-tint);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    padding: 4px 14px;
    margin-bottom: 14px;
    letter-spacing: 2px;
}

.yh-section-head h2 {
    font-size: clamp(26px, 2.6vw, 36px);
    font-weight: 800;
    margin: 0 0 12px;
}

.yh-section-head p {
    color: var(--color-text-secondary);
    font-size: 16px;
    margin: 0;
}

/* ---------- 价值主张 ---------- */
.yh-role-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}

.yh-role-tab {
    border: 1px solid var(--color-border-light);
    background: var(--color-bg-base);
    border-radius: 999px;
    padding: 10px 28px;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
}

.yh-role-tab.active {
    background: var(--color-text-primary);
    border-color: var(--color-text-primary);
    color: #fff;
}

.yh-value-card {
    background: var(--color-bg-base);
    border: 1px solid var(--color-border-lighter);
    border-radius: var(--yh-radius);
    padding: 28px 26px;
    height: 100%;
    min-height: 218px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.yh-value-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 34px rgba(48, 49, 51, 0.09);
}

.yh-value-card .icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 16px;
}

.yh-value-card.merchant .icon {
    background: var(--color-primary-tint);
    color: var(--color-primary-dark);
}

.yh-value-card.worker .icon {
    background: var(--color-success-tint);
    color: var(--color-success);
}

.yh-value-card h3 {
    font-size: 19px;
    font-weight: 800;
    margin: 0 0 10px;
}

.yh-value-card p {
    color: var(--color-text-regular);
    font-size: 14.5px;
    line-height: 1.8;
    margin: 0;
}

.yh-value-card .tag {
    display: inline-block;
    margin-top: 14px;
    font-size: 12px;
    color: var(--color-text-secondary);
    background: var(--color-bg-page);
    border-radius: 6px;
    padding: 3px 10px;
}

/* ---------- 产品矩阵 ---------- */
.yh-product-card {
    background: var(--color-bg-base);
    border: 1px solid var(--color-border-lighter);
    border-radius: var(--yh-radius);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.yh-product-card .shot {
    display: block;
    background: var(--color-bg-page);
    padding: 18px;
    text-align: center;
    cursor: zoom-in;
}

.yh-product-card .shot img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(48, 49, 51, 0.12);
}

.yh-product-card .body {
    padding: 24px 26px 28px;
    flex: 1;
}

.yh-product-card h3 {
    font-weight: 800;
    font-size: 20px;
    margin: 0 0 6px;
}

.yh-product-card .sub {
    color: var(--color-text-secondary);
    font-size: 14px;
    margin-bottom: 16px;
}

.yh-product-card ul {
    padding-left: 0;
    margin: 0 0 20px;
    list-style: none;
}

.yh-product-card ul li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 8px;
    color: var(--color-text-regular);
    font-size: 14.5px;
}

.yh-product-card ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-primary-dark);
    font-weight: 700;
}

/* ---------- 案例与背书 ---------- */
.yh-logo-wall {
    background: var(--color-bg-base);
    border: 1px solid var(--color-border-lighter);
    border-radius: var(--yh-radius);
    padding: 26px;
    margin-bottom: 40px;
}

.yh-logo-wall img {
    width: 100%;
    border-radius: 8px;
}

.yh-logo-wall .note {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 13px;
    margin: 14px 0 0;
}

.yh-case-card {
    background: var(--color-bg-base);
    border: 1px solid var(--color-border-lighter);
    border-radius: var(--yh-radius);
    padding: 26px 26px 24px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.yh-case-card .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.yh-case-card .brand img {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--color-border-light);
}

.yh-case-card .brand h3 {
    font-size: 17px;
    font-weight: 800;
    margin: 0;
}

.yh-case-card .brand span {
    display: block;
    font-size: 12.5px;
    color: var(--color-text-secondary);
    font-weight: 400;
}

.yh-case-card .scene {
    font-size: 13px;
    color: var(--color-primary-dark);
    background: var(--color-primary-tint);
    border-radius: 6px;
    display: inline-block;
    padding: 3px 10px;
    margin-bottom: 12px;
    align-self: flex-start;
}

.yh-case-card p {
    color: var(--color-text-regular);
    font-size: 14.5px;
    line-height: 1.8;
    margin: 0 0 14px;
}

.yh-case-card .result {
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px dashed var(--color-border-light);
    font-size: 13.5px;
    color: var(--color-success);
    font-weight: 600;
}

/* ---------- 服务者风采 ---------- */
.yh-talent-card {
    background: var(--color-bg-base);
    border: 1px solid var(--color-border-lighter);
    border-radius: var(--yh-radius);
    padding: 26px 22px;
    text-align: center;
    height: 100%;
}

.yh-talent-card img {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 14px;
    border: 3px solid var(--color-primary-tint);
}

.yh-talent-card h3 {
    font-size: 18px;
    font-weight: 800;
    margin: 0 0 4px;
}

.yh-talent-card .role {
    color: var(--color-text-secondary);
    font-size: 13px;
    margin-bottom: 14px;
}

.yh-talent-card .stats {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.yh-talent-card .stats span {
    background: var(--color-bg-page);
    border-radius: 999px;
    font-size: 12.5px;
    padding: 4px 12px;
    color: var(--color-text-regular);
}

.yh-talent-card .stats span.star {
    background: #FFF6E6;
    color: var(--color-warning-deep);
}

.yh-safeguard-bar {
    margin-top: 40px;
    background: var(--color-text-primary);
    color: #fff;
    border-radius: var(--yh-radius);
    padding: 22px 30px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.yh-safeguard-bar .item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 600;
}

.yh-safeguard-bar .item .ico {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(60, 156, 255, 0.2);
    color: var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.yh-privacy-note {
    color: var(--color-text-secondary);
    font-size: 12.5px;
    margin-top: 18px;
}

/* ---------- 最新消息 ---------- */
.yh-news-item {
    background: var(--color-bg-base);
    border: 1px solid var(--color-border-lighter);
    border-radius: var(--yh-radius);
    padding: 18px;
    height: 100%;
    transition: box-shadow 0.2s ease;
}

.yh-news-item:hover {
    box-shadow: 0 12px 26px rgba(48, 49, 51, 0.08);
}

.yh-news-item .media {
    margin: 0;
}

.yh-news-item img.media-object {
    width: 76px;
    height: 76px;
    border-radius: 10px;
}

.yh-news-item h4 {
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 8px;
    line-height: 1.5;
}

.yh-news-item h4 a {
    color: var(--color-text-primary);
}

.yh-news-item h4 a:hover {
    color: var(--color-primary-dark);
    text-decoration: none;
}

.yh-news-item .date {
    color: var(--color-text-secondary);
    font-size: 12.5px;
}

/* ---------- 底部转化条 ---------- */
.yh-final-cta {
    background: linear-gradient(120deg, #232B38 0%, #23405E 55%, #2B7CD9 100%);
    color: #fff;
    border-radius: var(--yh-radius);
    padding: 40px 44px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 22px;
}

.yh-final-cta h2 {
    margin: 0 0 6px;
    font-size: clamp(22px, 2.4vw, 30px);
    font-weight: 800;
}

.yh-final-cta p {
    margin: 0;
    color: rgba(255, 255, 255, 0.78);
}

/* ---------- 页脚 ---------- */
.yh-footer {
    background: var(--color-bg-page);
    padding: 56px 0 34px;
}

.yh-footer h4 {
    font-weight: 800;
    margin-bottom: 18px;
}

.yh-footer ul {
    list-style: none;
    padding: 0;
}

.yh-footer ul li {
    color: var(--color-text-regular);
    font-size: 13.5px;
    line-height: 2;
    word-break: break-all;
}

.yh-footer .qr img {
    width: 132px;
    height: 132px;
    border-radius: 10px;
    border: 1px solid var(--color-border-light);
}

.yh-footer .qr p {
    font-size: 12.5px;
    color: var(--color-text-secondary);
    margin-top: 8px;
    text-align: center;
}

.yh-copyright {
    border-top: 1px solid var(--color-border-lighter);
    margin-top: 34px;
    padding-top: 20px;
    font-size: 12.5px;
    color: var(--color-text-placeholder);
    text-align: center;
}

.yh-copyright a {
    color: var(--color-primary-dark);
}

/* ---------- 表单 ---------- */
.yh-form .form-control {
    border-radius: 8px;
    height: 42px;
}

.yh-form textarea.form-control {
    height: auto;
}

.yh-copy-box {
    width: 100%;
    border: 1px solid var(--color-border-base);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 13px;
    color: var(--color-text-regular);
    background: var(--color-bg-page);
    resize: vertical;
}

/* ---------- 通用动画 ---------- */
.blink {
    animation: blinker 1s linear infinite;
}

@keyframes blinker {
    50% {
        opacity: 0;
    }
}

/* ---------- 响应式 ---------- */
@media (max-width: 991px) {
    .yh-hero-inner {
        padding: 56px 0 64px;
    }

    .yh-entry-pane {
        padding: 22px 18px 26px;
    }

    .yh-entry-worker {
        gap: 18px;
    }

    .yh-entry-worker .qr {
        width: 118px;
        height: 118px;
    }

    .yh-section {
        padding: 52px 0;
    }

    .yh-value-card {
        min-height: 0;
        margin-bottom: 16px;
    }

    .yh-case-card,
    .yh-news-item {
        margin-bottom: 16px;
    }

    .yh-final-cta {
        padding: 30px 24px;
    }
}

@media (max-width: 767px) {
    .yh-nav-hotline {
        margin-left: 0;
    }

    .yh-hero {
        background-position: 62% 30%;
    }

    .yh-hero-metrics {
        gap: 8px 24px;
    }

    .yh-hero-metrics .num {
        font-size: 22px;
    }

    .yh-btn-ghost {
        margin-left: 0;
        margin-top: 10px;
    }

    .yh-entry-pane {
        padding: 20px 14px 24px;
    }

    .yh-entry-pane .btn {
        width: 100%;
    }
}