/* ===== 解决方案详情页共享样式 ===== */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;background:#f8fafc;color:#1e293b;line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none}
.back-link{display:inline-block;margin:18px 0 0 24px;font-size:.85rem;color:#1a56db;font-weight:600}
.back-link:hover{color:#0f3f9e}
.container{max-width:1080px;margin:0 auto;padding:0 20px}

/* Hero */
.sd-hero{color:#fff;padding:80px 20px 72px;text-align:center;position:relative;overflow:hidden;background-size:cover;background-position:center}
.sd-hero::before{content:'';position:absolute;top:-60%;left:-40%;width:180%;height:180%;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.12),transparent 50%);pointer-events:none}
.sd-hero::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,23,42,.86),rgba(26,86,219,.74));z-index:0;pointer-events:none}
.sd-hero>*{position:relative;z-index:1}
.sd-hero .tag{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);padding:5px 18px;border-radius:20px;font-size:.78rem;font-weight:600;letter-spacing:1px;margin-bottom:16px}
.sd-hero h1{font-size:2.2rem;font-weight:800;letter-spacing:1px;margin-bottom:12px}
.sd-hero .sub{font-size:1.02rem;opacity:.92;max-width:680px;margin:0 auto}
.hero-stats{display:flex;justify-content:center;gap:40px;margin-top:36px;flex-wrap:wrap}
.hero-stats .hs{text-align:center}
.hero-stats .hs .num{font-size:1.9rem;font-weight:800}
.hero-stats .hs .lbl{font-size:.78rem;opacity:.8;margin-top:2px}

/* 区块 */
.sd-sec{padding:56px 0}
.sd-sec.bg-light{background:#fff}
.sd-sec h2{font-size:1.5rem;font-weight:800;color:#0f172a;text-align:center;margin-bottom:6px}
.sd-sec .sec-sub{text-align:center;font-size:.9rem;color:#64748b;margin-bottom:36px}

/* 痛点 */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.pain-card{background:#fff;border:1px solid #fecaca;border-left:4px solid #ef4444;border-radius:12px;padding:20px}
.pain-card .picon{font-size:1.6rem;margin-bottom:8px}
.pain-card h4{font-size:.98rem;color:#b91c1c;margin-bottom:6px}
.pain-card p{font-size:.84rem;color:#64748b;line-height:1.7}

/* 方案模块 */
.mod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mod-card{background:#f8fafc;border:1px solid #dbeafe;border-radius:12px;padding:20px;transition:all .25s}
.mod-card:hover{box-shadow:0 6px 20px rgba(26,86,219,.08);transform:translateY(-2px)}
.mod-card .micon{font-size:1.6rem;margin-bottom:8px}
.mod-card h4{font-size:.96rem;color:#1e3a8a;margin-bottom:6px}
.mod-card p{font-size:.84rem;color:#64748b;line-height:1.7}

/* 对比表 */
.compare-wrap{overflow-x:auto;border-radius:14px;border:1px solid #e2e8f0;background:#fff}
.compare-table{width:100%;border-collapse:collapse;min-width:640px}
.compare-table th,.compare-table td{padding:14px 18px;text-align:left;font-size:.88rem;border-bottom:1px solid #f1f5f9}
.compare-table thead th{background:#f8fafc;font-size:.85rem;color:#475569;font-weight:700}
.compare-table td:first-child{font-weight:600;color:#334155;white-space:nowrap}
.compare-table td:nth-child(2){color:#b91c1c;width:38%}
.compare-table td:last-child{color:#065f46;font-weight:600;width:38%}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table td .x{color:#ef4444;margin-right:6px}
.compare-table td .ok{color:#16a34a;margin-right:6px}

/* 技术亮点 */
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.tech-item{background:#eff6ff;border:1px solid #bfdbfe;border-radius:10px;padding:16px;text-align:center}
.tech-item .tnum{font-size:1.3rem;font-weight:800;color:#1a56db}
.tech-item .tlbl{font-size:.78rem;color:#1e40af;margin-top:4px}

/* 场景 */
.app-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.app-chip{background:#fff;border:1px solid #e2e8f0;border-radius:20px;padding:8px 20px;font-size:.86rem;color:#334155;font-weight:600}
.app-chip:hover{border-color:#1a56db;color:#1a56db}

/* 案例 */
.case-card{display:flex;gap:20px;background:#fff;border:1px solid #e2e8f0;border-radius:14px;overflow:hidden;margin-bottom:16px}
.case-card .cimg{flex-shrink:0;width:280px;min-height:180px;background:#f1f5f9}
.case-card .cimg img{width:100%;height:100%;object-fit:cover}
.case-card .cbody{padding:24px;flex:1}
.case-card .cbadge{display:inline-block;font-size:.72rem;font-weight:700;padding:3px 12px;border-radius:999px;margin-bottom:10px}
.case-card h4{font-size:1.05rem;color:#0f172a;margin-bottom:8px}
.case-card p{font-size:.86rem;color:#64748b;line-height:1.8}
.case-stats{display:flex;gap:28px;margin-top:14px}
.case-stats .cs .num{font-size:1.25rem;font-weight:800;color:#1a56db}
.case-stats .cs .lbl{font-size:.74rem;color:#64748b}

/* CTA */
.sd-cta{background:linear-gradient(135deg,#0f172a,#1a56db);color:#fff;text-align:center;padding:56px 20px}
.sd-cta h3{font-size:1.5rem;font-weight:800;margin-bottom:10px}
.sd-cta p{font-size:.9rem;opacity:.85;margin-bottom:24px}
.sd-cta .btn{display:inline-block;background:#fff;color:#1a56db;font-weight:700;font-size:.95rem;padding:14px 40px;border-radius:8px;transition:all .25s}
.sd-cta .btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.25)}
.sd-footer{text-align:center;padding:24px;font-size:.78rem;color:#94a3b8}

@media(max-width:768px){
  .sd-hero h1{font-size:1.6rem}
  .pain-grid,.mod-grid,.tech-grid{grid-template-columns:1fr}
  .case-card{flex-direction:column}
  .case-card .cimg{width:100%;min-height:160px}
  .hero-stats{gap:24px}
}