/* ==========================================================================
   service-xiangying.css · 响应式网站
   版式：首屏上字下大图 / 三端三卡中间下移 / 两套站对照双栏 /
        测试断点四格横向 / 案例左图右文 / FAQ + CTA 双栏
   ========================================================================== */

/* ---------- 首屏 ---------- */
.xy-hero{padding:140px 0 40px}
.xy-hero-copy{margin-top:30px;max-width:760px}
.xy-hero-copy h1{margin:12px 0 20px}
.xy-hero-desc{color:var(--ink-2);font-size:16.5px;margin-bottom:28px}
.xy-hero-cta{margin-bottom:44px}
.xy-hero-media img{width:100%;height:auto;border-radius:var(--r);box-shadow:var(--shadow)}

/* ---------- 三端对照 ---------- */
.xy-dev{padding:60px 0 20px}
.xy-dev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:start}
.xy-dev-card{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:32px 28px}
.xy-dev-offset{transform:translateY(44px)}
.xy-dev-card:hover{transform:translateY(-6px)}
.xy-dev-offset:hover{transform:translateY(38px)}
.xy-dev-tag{display:inline-block;font-size:12.5px;letter-spacing:.2em;color:var(--brown-soft);background:var(--brown-bg);padding:5px 14px;border-radius:999px;margin-bottom:16px}
.xy-dev-card h3{font-size:20px;margin-bottom:10px}
.xy-dev-card p{color:var(--ink-2);font-size:14.5px}

/* ---------- 两套站对照 ---------- */
.xy-vs{padding:60px 0 20px}
.xy-vs-row{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-bottom:36px}
.xy-vs-col{border-radius:var(--r);padding:32px}
.xy-vs-bad{background:#f7f1ec;border:1px solid #eadfd6}
.xy-vs-good{background:var(--brown-bg);border:1px solid var(--line)}
.xy-vs-col h3{font-size:19px;margin-bottom:10px}
.xy-vs-col p{font-size:14.5px;color:var(--ink-2)}
.xy-vs-media img{width:100%;height:auto;border-radius:var(--r)}

/* ---------- 测试断点 ---------- */
.xy-test{padding:50px 0 10px}
.xy-test-list{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.xy-test-item{border-top:2px solid var(--brown);padding-top:18px}
.xy-test-item b{font-family:var(--font-serif);font-size:26px;color:var(--brown-deep);display:block;margin-bottom:8px}
.xy-test-item span{font-size:13.5px;color:var(--ink-2)}

/* ---------- 案例 ---------- */
.xy-case{padding:50px 0 10px}
.xy-case-in{
  display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:center;
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden;
}
.xy-case-in img{width:100%;height:auto}
.xy-case-body{padding:10px 44px 10px 0}
.xy-case-body h3{margin:12px 0 10px;font-size:21px}
.xy-case-body p{color:var(--ink-2);font-size:15px;margin-bottom:14px}

/* ---------- FAQ ---------- */
.xy-faq{padding:50px 0 10px}
.xy-faq-list{display:grid;gap:13px;max-width:840px}
.xy-faq-list details{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r-sm);padding:18px 24px}
.xy-faq-list summary{cursor:pointer;font-weight:600;font-size:15.5px;list-style:none}
.xy-faq-list summary::-webkit-details-marker{display:none}
.xy-faq-list details p{margin-top:10px;color:var(--ink-2);font-size:14.5px}
.xy-faq-list details p a{color:var(--brown);text-decoration:underline}

/* ---------- CTA ---------- */
.xy-cta{margin-top:70px;background:var(--brown-deep);color:#fff;border-radius:var(--r);padding:50px 54px;display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:center}
.xy-cta-copy h2{color:#fff;margin-bottom:14px}
.xy-cta-copy p{color:rgba(255,255,255,.65)}
.xy-cta-copy p a{color:#fff;font-weight:600}
.xy-cta-side{display:grid;gap:11px}
.xy-cta-side p{font-size:13px;color:var(--brown-soft)}
.xy-cta-side a{
  display:flex;justify-content:space-between;align-items:center;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);
  border-radius:var(--r-sm);padding:13px 20px;font-weight:500;color:#fff;
}
.xy-cta-side .btn{justify-content:center;margin-top:8px;color:var(--brown-deep)}

/* ---------- 补充板块 ---------- */
.xy-detail{padding:40px 0 10px}
.xy-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.xy-detail-item{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:26px 28px}
.xy-detail-item b{font-family:var(--font-serif);font-size:22px;color:var(--brown-soft);display:block;margin-bottom:8px}
.xy-detail-item h3{font-size:17px;margin-bottom:8px}
.xy-detail-item p{font-size:14px;color:var(--ink-2)}
.xy-prep{padding:40px 0 10px}
.xy-prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.xy-prep-item{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:24px}
.xy-prep-item b{font-family:var(--font-serif);font-size:17px;color:var(--brown-deep);display:block;margin-bottom:8px}
.xy-prep-item p{font-size:14px;color:var(--ink-2)}
.xy-say{padding:40px 0 10px}
.xy-say-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.xy-say-item{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:28px 30px;border-left:3px solid var(--brown)}
.xy-say-item p{font-family:var(--font-serif);font-size:16.5px;line-height:1.9;margin-bottom:12px}
.xy-say-item footer{font-size:13px;color:var(--muted)}
.xy-moretext{padding:40px 0 10px}
.xy-moretext-in{max-width:860px;margin:0 auto;display:grid;gap:16px}
.xy-moretext p{color:var(--ink-2);font-size:15px;line-height:2.1}
.xy-deliver{padding:40px 0 10px}
.xy-deliver-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.xy-deliver-item{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:22px 20px}
.xy-deliver-item b{font-family:var(--font-serif);font-size:16.5px;color:var(--brown-deep);display:block;margin-bottom:8px}
.xy-deliver-item p{font-size:13px;color:var(--ink-2)}
.xy-industry{padding:40px 0 10px}
.xy-industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.xy-industry-item{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:22px 20px}
.xy-industry-item b{font-family:var(--font-serif);font-size:16.5px;color:var(--brown-deep);display:block;margin-bottom:8px}
.xy-industry-item p{font-size:13px;color:var(--ink-2)}
.xy-fee{padding:40px 0 10px}
.xy-fee-row{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.xy-fee-col{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:28px 30px}
.xy-fee-col h3{font-size:18px;margin-bottom:10px}
.xy-fee-col p{font-size:14px;color:var(--ink-2)}
.xy-flow{padding:40px 0 10px}
.xy-flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.xy-flow-step{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:24px 22px;text-align:center}
.xy-flow-step b{display:block;font-family:var(--font-serif);font-size:28px;color:var(--brown-soft);margin-bottom:8px}
.xy-flow-step h3{font-size:16.5px;margin-bottom:6px}
.xy-flow-step p{font-size:13px;color:var(--ink-2)}
.xy-mis{padding:40px 0 10px}
.xy-mis-list{display:grid;gap:16px;max-width:840px;margin:0 auto}
.xy-mis-item{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r-sm);padding:20px 26px;border-left:3px solid var(--brown)}
.xy-mis-item b{display:block;font-size:15.5px;margin-bottom:6px;color:var(--brown-deep)}
.xy-mis-item p{font-size:14px;color:var(--ink-2)}

.xy-note{padding:40px 0 10px}
.xy-note-in{max-width:860px;margin:0 auto;text-align:center;font-family:var(--font-serif);font-size:18px;line-height:2.1;color:var(--ink)}
.xy-note-in a{color:var(--brown);font-weight:600}

/* ---------- 响应式 ---------- */
@media (max-width:900px){
  .xy-hero{padding:110px 0 30px}
  .xy-dev-grid,.xy-vs-row,.xy-test-list,.xy-case-in{grid-template-columns:1fr}
  .xy-cta{grid-template-columns:1fr;padding:36px 26px}
  .xy-dev-offset{transform:none}
  .xy-dev-offset:hover{transform:translateY(-6px)}
  .xy-case-body{padding:0 26px 26px}
}