/* ==========================================================================
   cozunet.com · 食品案例页 css/pages/case-shipin.css
   版式：浅底标题带 → 左卡右图概览 → 痛点左右对照 → 通栏图+悬浮文板
         → 编号竖列实现 → 大数字横排成果 → 横条更多案例
   ========================================================================== */

/* ---------- 页首标题带 ---------- */
.sp-hero{padding:130px 0 56px;background:var(--paper)}
.sp-title{margin:14px 0 16px;max-width:820px}
.sp-desc{color:var(--ink-2);font-size:15.5px;line-height:2;max-width:660px}

/* ---------- 概览：左卡右图 ---------- */
.sp-overview{padding:20px 0 80px;background:var(--paper)}
.sp-ov-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}
.sp-ov-card{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:30px 32px;box-shadow:var(--shadow-sm)}
.sp-ov-tag{display:inline-block;font-size:12.5px;letter-spacing:.3em;color:var(--brown-soft);margin-bottom:18px}
.sp-ov-card dl div{display:flex;justify-content:space-between;gap:18px;padding:13px 0;border-bottom:1px dashed var(--line-2)}
.sp-ov-card dl div:last-child{border-bottom:0}
.sp-ov-card dt{font-size:13px;color:var(--muted);flex:none;padding-top:3px}
.sp-ov-card dd{font-size:14.5px;font-weight:500;text-align:right}
.sp-ov-media{border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
.sp-ov-media img{width:100%;height:auto;object-fit:cover}
.sp-ov-media figcaption{font-size:12.5px;color:var(--muted);padding:10px 4px 0;letter-spacing:.04em}
@media (max-width:880px){.sp-ov-grid{grid-template-columns:1fr;gap:32px}}

/* ---------- 痛点：左右对照 ---------- */
.sp-pain{padding:90px 0;background:var(--card);border-top:1px solid var(--line-2)}
.sp-pain-cols{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line-2);border-radius:18px;overflow:hidden}
.sp-pain-bad,.sp-pain-good{padding:38px 36px}
.sp-pain-bad{background:var(--paper)}
.sp-pain-good{background:var(--brown-bg)}
.sp-pain-cols h3{font-size:19px;margin-bottom:20px}
.sp-pain-bad li{position:relative;padding-left:22px;margin-bottom:16px;font-size:14px;color:var(--ink-2);line-height:1.95}
.sp-pain-bad li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;background:#b08968}
.sp-pain-good li{position:relative;padding-left:22px;margin-bottom:16px;font-size:14px;color:var(--ink-2);line-height:1.95}
.sp-pain-good li::before{content:"";position:absolute;left:0;top:10px;width:9px;height:9px;border-radius:50%;background:var(--brown)}
.sp-pain-cols b{color:var(--ink);font-weight:600}
@media (max-width:820px){.sp-pain-cols{grid-template-columns:1fr}}

/* ---------- 设计思路：通栏图 + 悬浮文板 ---------- */
.sp-design{padding:90px 0;background:var(--paper)}
.sp-design-media{border-radius:18px;overflow:hidden;box-shadow:var(--shadow);margin-bottom:-70px;position:relative;z-index:1}
.sp-design-media img{width:100%;height:340px;object-fit:cover}
.sp-design-panel{position:relative;z-index:2;background:var(--card);border:1px solid var(--line-2);border-radius:18px;padding:40px 44px;box-shadow:var(--shadow);max-width:760px;margin-left:auto}
.sp-design-panel h2{margin:12px 0 18px}
.sp-p{color:var(--ink-2);font-size:14.5px;line-height:2.05;margin-bottom:14px}
@media (max-width:760px){.sp-design-media{margin-bottom:0;height:230px}.sp-design-panel{margin:20px 0 0;padding:28px 24px}}

/* ---------- 实现：编号竖列 ---------- */
.sp-impl{padding:90px 0;background:var(--card);border-top:1px solid var(--line-2)}
.sp-steps{list-style:none;max-width:860px;margin:0 auto}
.sp-steps li{display:grid;grid-template-columns:80px 1fr;gap:24px;padding:28px 0;border-bottom:1px dashed var(--line)}
.sp-steps li:last-child{border-bottom:0}
.sp-step-no{font-family:var(--font-serif);font-size:44px;color:var(--brown-bg);line-height:1;font-weight:700}
.sp-step-body h3{font-size:19px;margin-bottom:10px}
.sp-step-body p{color:var(--ink-2);font-size:14.5px;line-height:2}

/* ---------- 成果：大数字横排 ---------- */
.sp-result{padding:90px 0;background:var(--paper)}
.sp-bignums{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:46px}
.sp-bignums div{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:30px 24px;text-align:center}
.sp-bignums b{font-family:var(--font-serif);font-size:clamp(32px,3.6vw,48px);color:var(--brown);display:block;line-height:1.1}
.sp-bignums b em{font-style:normal;font-size:.4em;color:var(--brown-soft);margin-left:3px}
.sp-bignums span{display:block;margin-top:12px;font-size:13px;color:var(--ink-2);line-height:1.7}
@media (max-width:900px){.sp-bignums{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.sp-bignums{grid-template-columns:1fr}}

/* ---------- 更多案例：横条 ---------- */
.sp-more{padding:90px 0 40px;background:var(--paper)}
.sp-more-rows{display:grid;gap:18px}
.sp-mrow{display:grid;grid-template-columns:200px 1fr 40px;gap:24px;align-items:center;background:var(--card);border:1px solid var(--line-2);border-radius:14px;padding:16px;transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.sp-mrow:hover{transform:translateX(6px);box-shadow:var(--shadow-sm)}
.sp-mrow img{width:200px;height:140px;object-fit:cover;border-radius:10px}
.sp-mrow-body h3{font-size:17px;margin:10px 0 6px}
.sp-mrow-body p{font-size:13px;color:var(--ink-2)}
.sp-mrow-arrow{width:36px;height:36px;border-radius:50%;background:var(--brown-bg);color:var(--brown);display:flex;align-items:center;justify-content:center;justify-self:end}
.sp-mrow-arrow svg{width:15px;height:15px}
.sp-more-back{margin-top:34px;text-align:center}
@media (max-width:720px){.sp-mrow{grid-template-columns:110px 1fr;gap:16px}.sp-mrow img{width:110px;height:84px}.sp-mrow-arrow{display:none}}

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

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

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

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

/* ---------- 合作流程 ---------- */
.sp-flow{padding:80px 0;background:var(--card);border-top:1px solid var(--line-2)}
.sp-flow-list{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:40px}
.sp-flow-list > div{background:var(--paper);border:1px solid var(--line-2);border-radius:var(--r);padding:26px 24px}
.sp-flow-list b{font-family:var(--font-serif);font-size:14px;color:var(--brown-soft);letter-spacing:.1em}
.sp-flow-list h3{font-size:16px;margin:10px 0 8px}
.sp-flow-list p{font-size:13px;color:var(--ink-2);line-height:1.9}
@media (max-width:900px){.sp-flow-list{grid-template-columns:1fr 1fr}}

/* ---------- 后台自管 ---------- */
.sp-admin{padding:80px 0;background:var(--paper);border-top:1px solid var(--line-2)}
.sp-admin-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}
.sp-admin-copy h2{margin:12px 0 16px}
.sp-p{color:var(--ink-2);font-size:14.5px;line-height:2.05;margin-bottom:14px}
.sp-admin-list{list-style:none;display:grid;gap:14px}
.sp-admin-list li{background:var(--card);border:1px solid var(--line-2);border-radius:12px;padding:20px 24px}
.sp-admin-list h3{font-size:15px;margin-bottom:6px}
.sp-admin-list p{font-size:13px;color:var(--ink-2);line-height:1.85}
@media (max-width:860px){.sp-admin-grid{grid-template-columns:1fr;gap:32px}}