/* ========== 1. 全局品牌色与基础变量 ========== */
:root {
    --dark-black: rgb(68, 84, 106);
    --matte-gold: #B89C68;
    --seal-red: #ff0000;
    --white: #fff;
    /* 边框灰色系列 */
    --gray-border-light: #ddd;
    --gray-border-mid: #ccc;
    --gray-border-faint: #eee;
    --gray-bg-faint: #f5f5f5;
    --gray-bg-hover: #F8F7F5;
    --gray-bg-qr: #E1E6EB;
    --gray-text-mid: #444;
    --gray-text-light: #999;
    /* hover过渡金色 */
    --gold-hover: #fcc867;
    --gold-bright: #ffa704;
    /* 基础过渡与阴影 */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --soft-shadow: 0 2px 12px rgba(68, 84, 106, 0.03);
    --drop-shadow: 0 8px 24px rgba(68, 84, 106, 0.12);
}

/* ========== 2. 核心布局控制 ========== */
/* 面包屑和 Banner 外层：100% 撑满 */
.bc-page{
    margin-top: 80px;
}

/* 内容区容器：严格 1280px 居中 */
.bc-container {
    max-width: 1280px;
    width: 100%;
    margin: 0px auto;
    padding: 0 24px;
    box-sizing: border-box;
}
.bc-container:first-child{
    max-width: 100%;
    padding: 0 60px;
}



/* ========== 3. 面包屑导航 (强制显示) ========== */
.bc-breadcrumb-wrap {
    padding: 40px 0px;
    /* 修改1：换成品牌浅米色背景 */
    background: var(--gray-bg-hover);
}

.bc-breadcrumb {
    font-size: 14px;
    /* 修改2：文字靠左展示 */
    text-align: left;
}

.bc-breadcrumb a {
    color: var(--dark-black);
    transition: var(--transition-smooth);
}

.bc-breadcrumb a:hover {
    color: var(--matte-gold);
}

.bc-split {
    margin: 0 8px;
    color: var(--gray-text-mid);
}

.bc-current {
    color: var(--dark-black);
}

/* ========== 4. 首屏 Banner ========== */
.bc-banner {
    background: var(--dark-black) url("/cshp-web/upload/banner_color_bg.jpg") center/cover no-repeat;
    width: 100%;
    height: 80vh;
    padding: 100px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.bc-banner-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
    position: relative;
    z-index: 3;
}

.bc-banner-sub {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 16px;
    line-height: 1.8;
    position: relative;
    z-index: 3;
}

.bc-banner-tip {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid var(--matte-gold);
    color: var(--matte-gold);
    font-size: 14px;
    border-radius: 20px;
    letter-spacing: 1px;
    position: relative;
    z-index: 3;
}

/* ========== tip鼠标移入金色滑动进度条 ========== */
.bc-tip-progress-wrap {
    position: relative;
    display: inline-block;
    overflow: hidden;
    border-radius: 20px;
}
.bc-tip-progress-wrap::before {
    content: "";
    position: absolute;
    left: -100%;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--matte-gold);
    transition: left 0.7s ease;
    z-index: 0;
}
.bc-tip-progress-wrap:hover::before {
    left: 0;
}
.bc-tip-progress-wrap .bc-banner-tip {
    position: relative;
    z-index: 1;
    margin: 0;
}
.bc-tip-progress-wrap:hover .bc-banner-tip {
    color: var(--white);
}

/* ========== 慢速、大幅度跳动箭头 ========== */
.bc-bouncing-arrow {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

/* ========== 5. 通用区块与标题 ========== */
.bc-block {
    padding: 60px 0;
}

.bc-block-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark-black);
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.bc-block-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--matte-gold);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

.bc-block:hover .bc-block-title::after {
    width: 80px;
}

/* ========== 6. 痛点卡片 & 面料卡片 ========== */
.bc-pain-card-wrap {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
/* 面料板块两列居中布局 */
.bc-fabric-block .bc-pain-card-wrap {
    grid-template-columns: repeat(2, 480px);
    justify-content: center;
}

.bc-pain-card {
    background: var(--white);
    padding: 30px 24px;
    border-radius: 8px;
    border: 1px solid var(--gray-border-faint);
    box-shadow: var(--soft-shadow);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}
/* 面料卡片浅米色背景 */
.bc-fabric-block .bc-pain-card {
    background: var(--gray-bg-hover);
}

.bc-pain-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: var(--matte-gold);
    transition: var(--transition-smooth);
}

.bc-pain-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--drop-shadow);
    border-color: var(--gray-border-light);
}

.bc-pain-card:hover::before {
    width: 4px;
}

.bc-pain-card h3 {
    font-size: 18px;
    color: var(--dark-black);
    margin-bottom: 12px;
    font-weight: 700;
}

.bc-pain-card p {
    font-size: 14px;
    color: var(--dark-black);
    line-height: 1.7;
}

.bc-block-summary {
    text-align: center;
    margin-top: 30px;
    font-size: 14px;
    color: var(--dark-black);
    padding: 16px;
    background: var(--gray-bg-faint);
    border-radius: 8px;
}

/* ========== 7. 落地逻辑 & 品控保障 ========== */
.bc-model-block,
.bc-qa-block {
    background: var(--gray-bg-faint);
}

.bc-model-step-wrap {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.bc-model-step {
    background: var(--white);
    padding: 30px 24px;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--soft-shadow);
    transition: var(--transition-smooth);
}

.bc-model-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--drop-shadow);
}

.bc-model-step h3 {
    font-size: 18px;
    color: var(--matte-gold);
    margin-bottom: 12px;
    font-weight: 700;
}

.bc-model-step p {
    font-size: 14px;
    color: var(--dark-black);
    line-height: 1.7;
}

.bc-flow-text {
    text-align: center;
    margin-top: 30px;
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-black);
    letter-spacing: 2px;
}

.bc-qa-meta {
    text-align: center;
    margin-top: 30px;
    font-size: 14px;
    color: var(--matte-gold);
    font-weight: 600;
    padding: 12px 24px;
    border: 1px dashed var(--matte-gold);
    border-radius: 8px;
    display: inline-block;
    left: 50%;
    position: relative;
    transform: translateX(-50%);
}

/* ========== 8. 631法则 ========== */
.bc-rule-item-wrap {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.bc-rule-item {
    background: var(--white);
    padding: 30px 24px;
    border-radius: 8px;
    border: 2px solid var(--matte-gold);
    text-align: center;
    transition: var(--transition-smooth);
}

.bc-rule-item:hover {
    background: var(--gray-bg-hover);
    transform: translateY(-4px);
    box-shadow: var(--drop-shadow);
}

.bc-rule-item h3 {
    font-size: 18px;
    color: var(--dark-black);
    margin-bottom: 12px;
    font-weight: 800;
}

.bc-rule-item p {
    font-size: 14px;
    color: var(--dark-black);
    line-height: 1.7;
}

/* ========== 9. 岗位矩阵 ========== */
.bc-matrix-card-wrap {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.bc-matrix-card {
    background: var(--gray-bg-hover);
    padding: 30px 24px 30px 30px;
    border-radius: 8px;
    border-left: 4px solid var(--matte-gold);
    box-shadow: var(--soft-shadow);
    transition: var(--transition-smooth);
}

.bc-matrix-card:hover {
    box-shadow: var(--drop-shadow);
    transform: translateX(4px);
}

.bc-matrix-card h3 {
    font-size: 18px;
    color: var(--dark-black);
    margin-bottom: 12px;
    font-weight: 700;
}

.bc-matrix-card p {
    font-size: 14px;
    color: var(--dark-black);
    line-height: 1.7;
}

/* ========== 10. 案例对比 ========== */
.bc-case-compare-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.bc-case-card {
    padding: 40px 30px;
    border-radius: 12px;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.bc-case-old {
    background: var(--gray-bg-faint);
    border: 1px solid var(--gray-border-light);
}

.bc-case-old h3 { color: var(--gray-text-light); }
.bc-case-old li { color: var(--dark-black); }
.bc-case-old li::before { content: '×'; color: var(--gray-border-mid); }

.bc-case-new {
    background: var(--dark-black);
    box-shadow: var(--drop-shadow);
}

.bc-case-new h3 { color: var(--matte-gold); }
.bc-case-new li { color: var(--white); }
.bc-case-new li::before { content: '✓'; color: var(--matte-gold); }

.bc-case-card h3 {
    font-size: 24px;
    margin-bottom: 24px;
    font-weight: 700;
}

.bc-case-card ul {
    list-style: none;
    padding: 0;
}

.bc-case-card li {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 12px;
    padding-left: 24px;
    position: relative;
}

.bc-case-card li::before {
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* ========== 11. 响应式适配 ========== */
@media (max-width: 1024px) {
    .bc-pain-card-wrap,
    .bc-model-step-wrap,
    .bc-rule-item-wrap,
    .bc-matrix-card-wrap {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .bc-block { padding: 40px 0; }
    .bc-banner { 
        padding: 50px 20px;
        height: 360px; /* 手机端降低banner高度 */
    }
    .bc-pain-card-wrap,
    .bc-model-step-wrap,
    .bc-rule-item-wrap,
    .bc-matrix-card-wrap,
    .bc-case-compare-wrap {
        grid-template-columns: 1fr;
    }
    /* 手机端面料卡片单列 */
    .bc-fabric-block .bc-pain-card-wrap {
        grid-template-columns: 1fr;
    }
    .bc-case-card { min-height: auto; padding: 30px; }
}