/* ==========================================================================
   cozunet.com · 家具案例页 css/pages/case-jiaju.css
   版式：分屏 hero → 左卡右图概览 → 三列痛点 → 三列设计
         → 2x2 实现 → 深棕横排大数字 → 横条更多
   ========================================================================== */

/* ---------- 分屏 hero ---------- */
.jj-hero{padding:120px 0 0;background:var(--paper)}
.jj-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:end}
.jj-hero-copy h1{margin:14px 0 18px;font-size:clamp(28px,4vw,46px);max-width:640px}
.jj-hero-desc{color:var(--ink-2);font-size:15.5px;line-height:2;max-width:580px;margin-bottom:28px}
.jj-hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.jj-hero-media{border-radius:18px 18px 0 0;overflow:hidden;box-shadow:var(--shadow)}
.jj-hero-media img{width:100%;height:480px;object-fit:cover}
@media (max-width:900px){.jj-hero-grid{grid-template-columns:1fr}.jj-hero-media{border-radius:18px}.jj-hero-media img{height:320px}}

/* ---------- 概览左卡右图 ---------- */
.jj-overview{padding:70px 0;background:var(--paper)}
.jj-ov-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}
.jj-ov-card{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:24px 30px;box-shadow:var(--shadow-sm)}
.jj-ov-card div{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px dashed var(--line-2)}
.jj-ov-card div:last-child{border-bottom:0}
.jj-ov-card dt{font-size:13px;color:var(--muted);flex:none;padding-top:3px}
.jj-ov-card dd{font-size:14px;font-weight:500;text-align:right}
.jj-ov-copy h2{margin:10px 0 16px}
.jj-ov-copy p{color:var(--ink-2);font-size:15px;line-height:2.05;margin-bottom:14px}
@media (max-width:880px){.jj-ov-grid{grid-template-columns:1fr;gap:32px}}

/* ---------- 痛点三列 ---------- */
.jj-pain{padding:80px 0;background:var(--card);border-top:1px solid var(--line-2)}
.jj-pain-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.jj-pain-cards > div{background:var(--paper);border:1px solid var(--line-2);border-radius:var(--r);padding:32px 28px}
.jj-pain-cards h3{font-size:18px;margin-bottom:10px}
.jj-pain-cards p{font-size:13.5px;color:var(--ink-2);line-height:1.95}
@media (max-width:900px){.jj-pain-cards{grid-template-columns:1fr}}

/* ---------- 设计三列 ---------- */
.jj-design{padding:90px 0;background:var(--paper);border-top:1px solid var(--line-2)}
.jj-d-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.jj-d-cols figure{border-radius:14px;overflow:hidden;margin-bottom:16px;box-shadow:var(--shadow-sm)}
.jj-d-cols img{width:100%;height:220px;object-fit:cover}
.jj-d-cols h3{font-size:18px;margin-bottom:10px}
.jj-d-cols p{font-size:13.5px;color:var(--ink-2);line-height:1.95}
@media (max-width:900px){.jj-d-cols{grid-template-columns:1fr}.jj-d-cols img{height:240px}}

/* ---------- 实现 2x2 ---------- */
.jj-impl{padding:90px 0;background:var(--card);border-top:1px solid var(--line-2)}
.jj-impl-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.jj-impl-grid > div{background:var(--paper);border:1px solid var(--line-2);border-radius:var(--r);padding:30px 28px}
.jj-impl-grid h3{font-size:18px;margin-bottom:10px}
.jj-impl-grid p{font-size:13.5px;color:var(--ink-2);line-height:1.95}
@media (max-width:760px){.jj-impl-grid{grid-template-columns:1fr}}

/* ---------- 成果深棕横排 ---------- */
.jj-result{background:var(--brown);padding:90px 0}
.jj-result .sec-eyebrow{color:rgba(255,255,255,.6)}
.jj-result .sec-eyebrow::before{background:rgba(255,255,255,.4)}
.jj-result h2{color:#fff;margin-top:12px}
.jj-bignums{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:46px}
.jj-bignums div{text-align:center;padding:20px 10px}
.jj-bignums b{font-family:var(--font-serif);font-size:clamp(34px,4vw,52px);color:#fff;display:block;line-height:1.1}
.jj-bignums b em{font-style:normal;font-size:.38em;color:rgba(255,255,255,.6);margin-left:3px}
.jj-bignums span{display:block;margin-top:12px;font-size:13px;color:rgba(255,255,255,.66)}
@media (max-width:900px){.jj-bignums{grid-template-columns:1fr 1fr}}

/* ---------- 更多横条 ---------- */
.jj-more{padding:90px 0 40px;background:var(--paper)}
.jj-more-rows{display:grid;gap:16px;max-width:960px;margin:0 auto}
.jj-more-rows a{display:grid;grid-template-columns:200px 1fr 36px;gap:22px;align-items:center;background:var(--card);border:1px solid var(--line-2);border-radius:14px;padding:14px;transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.jj-more-rows a:hover{transform:translateX(6px);box-shadow:var(--shadow-sm)}
.jj-more-rows img{width:200px;height:130px;object-fit:cover;border-radius:10px}
.jj-more-rows h3{font-size:16.5px;margin:8px 0 5px}
.jj-more-rows p{font-size:13px;color:var(--ink-2)}
.jj-arrow{width:34px;height:34px;border-radius:50%;background:var(--brown-bg);color:var(--brown);display:flex;align-items:center;justify-content:center;justify-self:end}
.jj-arrow svg{width:14px;height:14px}
@media (max-width:720px){.jj-more-rows a{grid-template-columns:100px 1fr;gap:14px}.jj-more-rows img{width:100px;height:78px}.jj-arrow{display:none}}

/* ---------- CTA ---------- */
.jj-cta{background:var(--brown-deep);padding:72px 0;margin-top:50px}
.jj-cta-in{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.jj-cta-copy h2{color:#fff;font-size:clamp(23px,2.8vw,32px);margin-bottom:10px}
.jj-cta-copy p{color:rgba(255,255,255,.68);font-size:14.5px;letter-spacing:.05em}
.jj-cta-btns{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- 客户常问 ---------- */
.jj-faq{padding:90px 0;background:var(--card);border-top:1px solid var(--line-2)}
.jj-faq-list{max-width:860px;margin:40px auto 0;display:grid;gap:14px}
.jj-faq details{background:var(--paper);border:1px solid var(--line-2);border-radius:12px;padding:20px 26px}
.jj-faq summary{font-size:15.5px;font-weight:600;cursor:pointer;list-style:none;position:relative;padding-right:28px}
.jj-faq summary::-webkit-details-marker{display:none}
.jj-faq summary::after{content:"+";position:absolute;right:0;top:0;font-size:20px;color:var(--brown-soft);line-height:1.2}
.jj-faq details[open] summary::after{content:"-"}
.jj-faq details p{margin-top:12px;font-size:14px;color:var(--ink-2);line-height:1.95}

/* ---------- 售后与维护 ---------- */
.jj-care{padding:80px 0;background:var(--paper);border-top:1px solid var(--line-2)}
.jj-care-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:40px}
.jj-care-grid > div{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:26px 24px}
.jj-care-grid h3{font-size:16px;margin-bottom:10px}
.jj-care-grid p{font-size:13px;color:var(--ink-2);line-height:1.9}
@media (max-width:900px){.jj-care-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.jj-care-grid{grid-template-columns:1fr}}

/* ---------- 客户反馈 ---------- */
.jj-quote{padding:80px 0;background:var(--card);border-top:1px solid var(--line-2)}
.jj-quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px}
.jj-quote blockquote{background:var(--paper);border:1px solid var(--line-2);border-left:3px solid var(--brown);border-radius:12px;padding:28px 30px}
.jj-quote p{font-size:14.5px;line-height:2;color:var(--ink);margin-bottom:14px}
.jj-quote cite{font-size:12.5px;color:var(--muted);font-style:normal;letter-spacing:.05em}
@media (max-width:760px){.jj-quote-grid{grid-template-columns:1fr}}