/* =========================================================
   售后保障 页面（复用 theme.css 亮蓝科技设计系统）
   目标：可靠、放心；顶部照优势页
   ========================================================= */

/* ---------- 区块标题（同系列） ---------- */
.sh-head{text-align:center;max-width:780px;margin:0 auto 56px}
.sh-head__k{display:inline-block;font-size:12px;letter-spacing:3px;font-weight:700;color:var(--blue);margin-bottom:14px}
.sh-head h2{font-size:clamp(26px,3.2vw,38px);color:var(--ink);font-weight:800;letter-spacing:-.5px}
.sh-head p{margin-top:16px;font-size:16px;line-height:1.8;color:var(--muted)}

/* =========================================================
   Hero（照优势页）
   ========================================================= */
.sh-hero{position:relative;overflow:hidden;padding:100px 0 80px;background:
  radial-gradient(700px 500px at 88% 10%,rgba(0,166,232,.18),transparent 60%),
  radial-gradient(600px 480px at 8% 90%,rgba(0,102,255,.16),transparent 60%),
  linear-gradient(180deg,#fff,#F2F8FF)}
.sh-hero__bg{position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(0,102,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(0,102,255,.05) 1px,transparent 1px);
  background-size:48px 48px;-webkit-mask-image:radial-gradient(circle at 50% 30%,#000,transparent 75%);mask-image:radial-gradient(circle at 50% 30%,#000,transparent 75%)}
.sh-hero__inner{position:relative;text-align:center}
.sh-hero__badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--blue);
  background:var(--glass-strong);border:1px solid var(--line);padding:8px 18px;border-radius:30px;margin-bottom:24px;box-shadow:var(--shadow-sm)}
.sh-hero__badge .dot{width:8px;height:8px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px rgba(0,102,255,.18)}
.sh-hero h1{font-size:clamp(32px,4.6vw,56px);line-height:1.12;font-weight:800;color:var(--ink);letter-spacing:-1px}
.sh-hero h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sh-hero__lead{margin:22px auto 0;max-width:780px;font-size:17px;line-height:1.9;color:var(--muted)}
.sh-hero__stats{margin:46px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:880px}
.sh-hero__stats .s{background:var(--glass-strong);border:1px solid var(--line);border-radius:var(--r-sm);padding:24px 16px;box-shadow:var(--shadow-sm)}
.sh-hero__stats b{display:block;font-size:32px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sh-hero__stats span{display:block;font-size:13.5px;color:var(--muted);margin-top:6px}

/* =========================================================
   服务承诺（6 卡）
   ========================================================= */
.sh-promise{background:#fff}
.sh-promise__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sh-card{padding:34px 30px;border-radius:var(--r);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:.28s}
.sh-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(0,102,255,.35)}
.sh-card__ic{width:54px;height:54px;border-radius:14px;background:var(--grad-soft);color:var(--blue);display:grid;place-items:center;margin-bottom:18px}
.sh-card__ic svg{width:28px;height:28px}
.sh-card h3{font-size:19px;font-weight:800;color:var(--ink);margin-bottom:10px}
.sh-card p{font-size:14.5px;line-height:1.85;color:var(--muted)}

/* =========================================================
   售后流程（时间轴）
   ========================================================= */
.sh-flow{background:var(--bg)}
.sh-flow__track{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.sh-flow__track::before{content:"";position:absolute;top:34px;left:12%;right:12%;height:2px;
  background:repeating-linear-gradient(90deg,var(--blue) 0 10px,transparent 10px 20px);opacity:.4}
.sh-step{position:relative;text-align:center;padding:0 8px}
.sh-step__no{display:inline-grid;place-items:center;width:68px;height:68px;border-radius:50%;
  background:#fff;border:2px solid var(--blue);color:var(--blue);font-size:20px;font-weight:800;
  margin-bottom:18px;position:relative;z-index:2;box-shadow:0 12px 28px -14px rgba(0,102,255,.5)}
.sh-step h3{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:8px}
.sh-step p{font-size:14px;line-height:1.8;color:var(--muted)}

/* =========================================================
   服务方式（4 卡）
   ========================================================= */
.sh-channel{background:#fff}
.sh-channel__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.sh-channel__card{padding:28px 24px;border-radius:var(--r);background:var(--bg);border:1px solid var(--line);text-align:center;transition:.28s}
.sh-channel__card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(0,102,255,.35)}
.sh-channel__ic{width:48px;height:48px;border-radius:12px;background:var(--grad-soft);color:var(--blue);display:grid;place-items:center;margin:0 auto 14px}
.sh-channel__ic svg{width:26px;height:26px}
.sh-channel__card h3{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:8px}
.sh-channel__card p{font-size:13.5px;line-height:1.7;color:var(--muted)}

/* =========================================================
   为什么可靠（对比）
   ========================================================= */
.sh-trust{background:var(--bg)}
.sh-trust__grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:980px;margin:0 auto}
.sh-trust__col{padding:32px 30px;border-radius:var(--r);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.sh-trust__col--bad{background:#fff7f7;border-color:rgba(220,60,60,.2)}
.sh-trust__col h4{font-size:19px;font-weight:800;color:var(--ink);margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.sh-trust__col--bad h4{color:#C0392B}
.sh-trust__col ul{list-style:none;margin:0;padding:0}
.sh-trust__col li{font-size:14.5px;line-height:1.7;color:var(--text);padding:9px 0 9px 26px;position:relative}
.sh-trust__col li i{position:absolute;left:0;top:13px;width:16px;height:16px;border-radius:50%;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230066FF' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") no-repeat center/11px;
  background-color:rgba(0,102,255,.1)}
.sh-trust__col--bad li i{background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23C0392B' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E") no-repeat center/11px;
  background-color:rgba(192,57,43,.1)}

/* =========================================================
   CTA（真通栏）
   ========================================================= */
.sh-cta{background:transparent;padding:0 !important;margin-top:-60px;margin-bottom:30px}
.sh-cta__box{position:relative;text-align:center;padding:34px 24px;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#0A1F3C,#0E2A4F 60%,#0A3A4A)}
.sh-cta__box h2{font-size:clamp(26px,3vw,38px);font-weight:800;color:#fff}
.sh-cta__box p{margin-top:14px;font-size:16px;opacity:.9;color:#fff}
.sh-cta__btns{margin-top:30px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.sh-btn{display:inline-flex;align-items:center;justify-content:center;height:52px;padding:0 30px;border-radius:30px;font-size:16px;font-weight:700;text-decoration:none;transition:.25s;cursor:pointer}
.sh-btn--primary{background:#fff;color:var(--blue);box-shadow:0 16px 34px -14px rgba(0,0,0,.4)}
.sh-btn--primary:hover{transform:translateY(-2px);background:#E6F0FF}
.sh-btn--ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.sh-btn--ghost:hover{background:rgba(255,255,255,.1)}

/* =========================================================
   响应式
   ========================================================= */
@media(max-width:980px){
  .sh-hero__stats{grid-template-columns:repeat(2,1fr);gap:14px}
  .sh-promise__grid{grid-template-columns:repeat(2,1fr)}
  .sh-flow__track{grid-template-columns:repeat(2,1fr);gap:28px}
  .sh-flow__track::before{display:none}
  .sh-channel__grid{grid-template-columns:repeat(2,1fr)}
  .sh-trust__grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .sh-hero__stats{grid-template-columns:1fr}
  .sh-promise__grid{grid-template-columns:1fr}
  .sh-flow__track{grid-template-columns:1fr}
  .sh-channel__grid{grid-template-columns:1fr}
}