/* ===== 项目页样式 b2b-project-page.css ===== */
.pp-container{max-width:1200px;margin:0 auto;padding:0 20px;box-sizing:border-box}
.pp-page{font-family:"microsoft yahei",Arial,sans-serif;color:#333;line-height:1.8;padding-bottom:20px}

/* 按钮 */
.pp-btn{display:inline-block;padding:12px 32px;border-radius:6px;font-size:16px;font-weight:600;text-decoration:none;cursor:pointer;border:none;transition:all .2s;box-sizing:border-box}
.pp-btn--primary{background:#1a73e8;color:#fff}
.pp-btn--primary:hover{background:#0d47a1}
.pp-btn--secondary{background:transparent;color:#fff;border:2px solid #fff}
.pp-btn--secondary:hover{background:#fff;color:#1a73e8}
.pp-btn--accent{background:#ff6b35;color:#fff}
.pp-btn--accent:hover{background:#e55a2b}

/* 模块通用 */
.pp-section{margin:40px 0;padding:40px 0;background:#fff}
.pp-section__title{font-size:32px;font-weight:800;color:#1e293b;margin:0 0 16px;text-align:center}
.pp-section__desc{font-size:16px;color:#64748b;text-align:center;margin-bottom:24px}

/* 首屏 */
.pp-hero{position:relative;background-color:#0d47a1;background-size:cover;background-position:center;padding:80px 0;color:#fff}
.pp-hero__overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(13,71,161,.65)}
.pp-hero__content{position:relative;z-index:1;max-width:800px}
.pp-hero__title{font-size:48px;font-weight:800;margin:0 0 16px;line-height:1.3}
.pp-hero__subtitle{font-size:20px;margin:0 0 32px;line-height:1.6;opacity:.95}
.pp-hero__ctas{display:flex;gap:16px;flex-wrap:wrap}

/* 富文本 */
.pp-rich-text{font-size:16px;color:#333;line-height:1.8}
.pp-rich-text p{margin:12px 0}
.pp-rich-text h2{font-size:24px;font-weight:700;color:#1e293b;margin:24px 0 12px}
.pp-rich-text h3{font-size:20px;font-weight:600;color:#1e293b;margin:20px 0 10px}
.pp-rich-text h4,.pp-rich-text h5,.pp-rich-text h6{font-size:18px;font-weight:600;color:#333;margin:16px 0 8px}
.pp-rich-text ul,.pp-rich-text ol{padding-left:24px;margin:12px 0}
.pp-rich-text li{margin:6px 0}
.pp-rich-text blockquote{border-left:4px solid #1a73e8;background:#f0f7ff;padding:12px 16px;margin:16px 0;color:#444;border-radius:0 6px 6px 0}
.pp-rich-text img{max-width:100%;height:auto;border-radius:8px}
.pp-rich-text a{color:#1a73e8;text-decoration:underline}
.pp-rich-text table{width:100%;border-collapse:collapse;margin:16px 0}
.pp-rich-text th,.pp-rich-text td{border:1px solid #e0e0e0;padding:8px 12px;text-align:left}
.pp-rich-text th{background:#f8f9fa;font-weight:600}

/* 案例卡片 */
.pp-cases__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(360px,1fr));gap:24px}
.pp-case-card{background:#fff;border:1px solid #e0e0e0;border-radius:10px;padding:24px;transition:box-shadow .2s,transform .2s}
.pp-case-card:hover{box-shadow:0 4px 20px rgba(0,0,0,.12);transform:translateY(-2px)}
.pp-case-card__title{font-size:18px;font-weight:700;color:#1e293b;margin:0 0 8px}
.pp-case-card__client{font-size:14px;color:#64748b;margin:0 0 16px}
.pp-case-card__section{margin-bottom:16px}
.pp-case-card__label{font-size:13px;font-weight:600;color:#1a73e8;margin:0 0 6px}
.pp-case-card__body{font-size:14px;color:#475569;line-height:1.7}
.pp-case-card__section--result{background:#f0fdf4;border-radius:8px;padding:12px 16px;margin-bottom:0}
.pp-case-card__caliber{font-size:12px;color:#999;margin:8px 0 0}

/* 合作流程 */
.pp-process__list{list-style:none;padding:0;margin:0}
.pp-process__item{display:flex;gap:20px;margin-bottom:24px;align-items:flex-start}
.pp-process__no{flex-shrink:0;width:40px;height:40px;background:linear-gradient(135deg,#1a73e8,#4285f4);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700}
.pp-process__body{flex:1}
.pp-process__title{font-size:18px;font-weight:600;color:#1e293b;margin:0 0 8px}

/* FAQ折叠面板 */
.pp-faq__list{margin-top:24px}
.pp-faq__item{border:1px solid #e0e0e0;border-radius:8px;margin-bottom:12px;overflow:hidden;background:#fff}
.pp-faq__q{padding:16px 20px;font-weight:600;color:#1e293b;cursor:pointer;position:relative;padding-right:48px;font-size:16px}
.pp-faq__q::after{content:'+';position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:22px;color:#999;transition:transform .2s;line-height:1}
.pp-faq__item--open .pp-faq__q::after{transform:translateY(-50%) rotate(45deg)}
.pp-faq__a{padding:0 20px;max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease}
.pp-faq__item--open .pp-faq__a{padding:0 20px 16px;max-height:2000px}

/* 底部CTA */
.pp-cta{background:linear-gradient(135deg,#0d47a1,#1a73e8);color:#fff;padding:60px 0;text-align:center;margin:40px 0}
.pp-cta__title{font-size:28px;font-weight:800;margin:0 0 16px}
.pp-cta__desc{font-size:16px;margin:0 0 24px;opacity:.9}
.pp-cta__btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:16px}
.pp-cta__hint{font-size:14px;opacity:.85;margin:0}

/* 自定义模块 */
.pp-custom__media{margin:20px 0;text-align:center}
.pp-custom__img{max-width:100%;border-radius:10px}
.pp-custom__video{max-width:100%;border-radius:10px}

/* 未开放页面 */
.pp-notfound{text-align:center;padding:80px 20px}
.pp-notfound__title{font-size:28px;color:#333;margin:0 0 16px}
.pp-notfound__desc{font-size:16px;color:#666;margin:0 0 24px}

/* 移动端底部固定联系栏（仅移动端显示） */
.pp-mobile-bar{display:none}

@media(max-width:768px){
    .pp-hero{padding:48px 0}
    .pp-hero__title{font-size:28px}
    .pp-hero__subtitle{font-size:16px}
    .pp-hero__ctas{flex-direction:column}
    .pp-btn{width:100%;text-align:center}
    .pp-section{margin:24px 0;padding:24px 0}
    .pp-section__title{font-size:24px}
    .pp-cases__grid{grid-template-columns:1fr}
    .pp-process__item{flex-direction:column;gap:12px}
    .pp-process__no{width:36px;height:36px;font-size:16px}
    .pp-cta{padding:40px 0}
    .pp-cta__btns{flex-direction:column}
    .pp-cta__title{font-size:22px}
    .pp-page{padding-bottom:80px}

    /* 移动端底部固定联系栏 */
    .pp-mobile-bar{display:flex;position:fixed;bottom:0;left:0;right:0;height:64px;background:#fff;border-top:1px solid #e0e0e0;z-index:999;box-shadow:0 -2px 8px rgba(0,0,0,.08)}
    .pp-mobile-bar__btn{flex:1;display:flex;align-items:center;justify-content:center;gap:4px;text-decoration:none;font-size:14px;font-weight:600;color:#1a73e8;border-right:1px solid #f0f0f0}
    .pp-mobile-bar__btn:last-child{border-right:none}
    .pp-mobile-bar__btn--accent{background:#ff6b35;color:#fff}
}