/* 案例页专用样式 —— 复用 styles.css 的设计令牌与版心，不新增配色。
   类名统一 cs- 前缀，避免与首页/pricing 页的语义撞车。 */

.ic{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;
  stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;vertical-align:-3px}

.nav-links a.on{color:var(--gold)}

/* ============ Hero ============ */
.cs-hero{position:relative;overflow:hidden;
  padding:clamp(60px,7vw,96px) 0 clamp(44px,5vw,64px)}
.cs-hero::before{content:'';position:absolute;inset:-30% 40% auto -10%;height:520px;pointer-events:none;
  background:radial-gradient(ellipse at 30% 20%,rgba(212,175,116,.13),transparent 64%)}
.cs-hero .wrap{position:relative}
.cs-hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(30px,4.6vw,54px);
  line-height:1.28;letter-spacing:.01em}
.cs-hero h1 em{font-style:normal;color:var(--gold)}
.cs-hero-sub{margin-top:20px;max-width:720px;font-size:clamp(15px,1.5vw,17px);color:var(--text-2)}

.cs-hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:36px;
  background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.cs-hero-metrics div{background:var(--bg-2);padding:18px 22px}
.cs-hero-metrics b{display:block;font-family:var(--serif);font-weight:400;
  font-size:clamp(24px,2.8vw,32px);color:var(--gold);line-height:1;font-variant-numeric:tabular-nums}
.cs-hero-metrics span{display:block;margin-top:8px;font-size:12.5px;color:var(--text-3)}

.cs-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.cs-hero-actions .btn{height:46px;font-size:14px}
.cs-btn-line{border:1px solid var(--line);color:var(--gold);background:transparent}
.cs-btn-line:hover{border-color:var(--gold);background:var(--gold-dim)}

/* ============ 客户画像 ============ */
.cs-stats{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.cs-stat{padding:20px;border:1px solid var(--line-2);border-radius:14px;background:rgba(255,255,255,.02)}
.cs-stat-ic{width:34px;height:34px;display:flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);background:rgba(212,175,116,.07);color:var(--gold)}
.cs-stat-ic .ic{width:17px;height:17px}
.cs-stat b{display:block;margin-top:12px;font-family:var(--serif);font-weight:400;
  font-size:clamp(19px,2vw,24px);color:var(--gold);line-height:1.1}
.cs-stat > span:last-child{display:block;margin-top:6px;font-size:12px;color:var(--text-3)}

.cs-profile-note{margin-top:24px;max-width:900px;font-size:14px;color:var(--text-2);line-height:1.8}
.cs-profile-note b{color:var(--gold);font-weight:600}
.cs-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.cs-pills span{font-size:12px;color:var(--gold);border:1px solid var(--line);
  background:rgba(212,175,116,.06);border-radius:999px;padding:5px 13px}

/* ============ 痛点 ============ */
.cs-pains{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cs-pain{padding:24px;border:1px solid var(--line);border-radius:16px;background:var(--card)}
.cs-pain-n{font-family:var(--serif);font-size:13px;letter-spacing:.1em;color:var(--gold)}
.cs-pain h3{font-size:16px;font-weight:600;margin:12px 0 9px;line-height:1.5}
.cs-pain p{font-size:13px;color:var(--text-2);line-height:1.7}

/* ============ 解决方案 ============ */
.cs-block{margin-top:clamp(36px,4vw,52px)}
.cs-block-hd{display:flex;gap:18px;align-items:flex-start;margin-bottom:22px}
.cs-block-n{flex:none;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;
  justify-content:center;border:1px solid rgba(212,175,116,.42);color:var(--gold);
  font-family:var(--serif);font-size:16px}
.cs-block-hd h3{font-family:var(--serif);font-weight:400;font-size:clamp(19px,2.2vw,24px);line-height:1.4}
.cs-block-hd p{margin-top:8px;max-width:900px;font-size:13.5px;color:var(--text-2);line-height:1.75}

.cs-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px}
.cs-table{width:100%;min-width:640px;border-collapse:collapse;font-size:13.5px}
.cs-table th{padding:14px 20px;text-align:left;font-size:12.5px;font-weight:600;color:var(--text-2);
  background:var(--bg-2);border-bottom:1px solid var(--line);white-space:nowrap}
.cs-table td{padding:14px 20px;color:var(--text-2);border-bottom:1px solid var(--line-2);vertical-align:top}
.cs-table tbody tr:last-child td{border-bottom:0}
.cs-table td:first-child{color:var(--text);white-space:nowrap}
.cs-table td:nth-child(2){color:var(--gold);font-family:var(--serif);font-size:17px}
.cs-table .cs-sum td{background:rgba(212,175,116,.05);color:var(--text-2)}
.cs-table .cs-sum td:first-child{color:var(--gold)}

.cs-trust{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cs-trust-card{padding:22px;border:1px solid var(--line-2);border-radius:14px;
  background:rgba(255,255,255,.02);transition:border-color .24s,background .24s}
.cs-trust-card:hover{border-color:rgba(212,175,116,.4);background:var(--gold-dim)}
.cs-trust-card h4{margin:14px 0 8px;font-size:15.5px}
.cs-trust-card p{font-size:13px;color:var(--text-2);line-height:1.68}

.cs-strategy{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cs-strategy-card{padding:22px;border:1px solid var(--line);border-radius:14px;background:var(--bg-2)}
.cs-strategy-card h4{display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--gold)}
.cs-strategy-card h4 .ic{width:16px;height:16px}
.cs-strategy-card ul{list-style:none;margin-top:12px;display:flex;flex-direction:column;gap:9px}
.cs-strategy-card li{position:relative;padding-left:14px;font-size:13px;color:var(--text-2);line-height:1.65}
.cs-strategy-card li::before{content:'';position:absolute;left:0;top:.62em;width:5px;height:5px;
  border-radius:50%;background:rgba(212,175,116,.55)}
.cs-strategy-card li b{color:var(--text)}

/* ============ 成果数据 ============ */
.cs-results{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:14px;overflow:hidden}
.cs-result{background:var(--bg-2);padding:20px 22px}
.cs-result b{display:block;font-family:var(--serif);font-weight:400;
  font-size:clamp(23px,2.5vw,29px);color:var(--gold);line-height:1;font-variant-numeric:tabular-nums}
.cs-result span{display:block;margin-top:9px;font-size:12.5px;color:var(--text-3)}

.cs-account{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  margin-top:20px;padding:26px 28px;border:1px solid rgba(212,175,116,.42);border-radius:16px;
  background:linear-gradient(150deg,rgba(212,175,116,.08),var(--card) 55%,var(--bg-2))}
.cs-badge{display:inline-block;padding:3px 11px;border-radius:999px;
  background:linear-gradient(135deg,#C9A462,#D4AF74);color:#12151C;font-size:11px;font-weight:600}
.cs-account h3{font-family:var(--serif);font-weight:400;font-size:22px;margin-top:10px}
.cs-account h3 span{font-family:-apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif;
  font-size:12px;color:var(--text-3)}
.cs-account p{margin-top:6px;font-size:12.5px;color:var(--text-3)}
.cs-account-nums{display:flex;gap:clamp(22px,4vw,54px)}
.cs-account-nums b{display:block;font-family:var(--serif);font-weight:400;font-size:clamp(22px,2.4vw,28px);
  color:var(--gold);line-height:1;font-variant-numeric:tabular-nums}
.cs-account-nums span{display:block;margin-top:7px;font-size:11.5px;color:var(--text-3)}

.cs-charts{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
.cs-chart{padding:24px;border:1px solid var(--line);border-radius:16px;background:var(--bg-2)}
.cs-chart-wide{margin-top:16px}
.cs-chart h4{font-size:14.5px;font-weight:600;margin-bottom:18px}
.cs-bar-row{display:grid;grid-template-columns:104px 1fr 52px;align-items:center;gap:12px;
  margin-bottom:12px;font-size:12.5px;color:var(--text-2)}
.cs-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.cs-bar i{display:block;height:100%;border-radius:999px;
  background:linear-gradient(90deg,#C9A462,#D4AF74)}
.cs-bar i.dim{background:rgba(212,175,116,.34)}
.cs-bar-row b{text-align:right;font-family:var(--serif);font-size:14px;color:var(--gold);
  font-variant-numeric:tabular-nums}
.cs-chart-note{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.7}
.cs-chart-note b{color:var(--text-2);font-weight:600}

.cs-stack{display:flex;height:38px;border-radius:10px;overflow:hidden;margin-bottom:18px}
.cs-stack i{display:flex;align-items:center;justify-content:center;font-style:normal;
  font-size:12px;font-weight:600;white-space:nowrap}
.cs-stack .a{background:linear-gradient(135deg,#C9A462,#D4AF74);color:#12151C}
.cs-stack .b{background:rgba(212,175,116,.5);color:#12151C}
.cs-stack .c{background:rgba(255,255,255,.12);color:var(--text-2)}
.cs-grade-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.cs-grade-notes p{font-size:12.5px;color:var(--text-2);line-height:1.7}
.cs-grade-notes b{color:var(--gold);font-weight:600}

.cs-insights{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
.cs-insights article{padding:20px 22px;border:1px solid var(--line-2);border-radius:14px;
  background:rgba(255,255,255,.02)}
.cs-insights b{display:block;font-size:14px;color:var(--gold);margin-bottom:7px}
.cs-insights p{font-size:12.5px;color:var(--text-2);line-height:1.7}

/* ============ 结论 ============ */
.cs-concl{max-width:900px}
.cs-concl p{font-size:14px;color:var(--text-2);line-height:1.9;margin-bottom:16px}
.cs-concl p:last-child{margin-bottom:0}
.cs-concl b{color:var(--text);font-weight:600}

.cs-cta{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  margin-top:40px;padding:clamp(26px,3.5vw,42px);border:1px solid rgba(212,175,116,.3);
  border-radius:20px;background:linear-gradient(150deg,rgba(212,175,116,.08),var(--card) 55%,var(--bg-2))}
.cs-cta h3{font-family:var(--serif);font-weight:400;font-size:clamp(21px,2.6vw,28px);line-height:1.4}
.cs-cta p{margin-top:10px;font-size:13px;color:var(--text-3)}
.cs-cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cs-cta-actions .btn{height:44px;font-size:14px}

.cs-footnote{margin-top:26px;font-size:11.5px;color:var(--text-3)}

/* ============ 响应式 ============ */
@media(max-width:1000px){
  .cs-stats{grid-template-columns:repeat(3,1fr)}
  .cs-pains,.cs-trust{grid-template-columns:repeat(2,1fr)}
  .cs-results{grid-template-columns:repeat(2,1fr)}
  .cs-charts,.cs-insights{grid-template-columns:1fr}
  .cs-grade-notes{grid-template-columns:1fr}
}
@media(max-width:680px){
  .cs-hero-metrics{grid-template-columns:1fr}
  .cs-stats,.cs-pains,.cs-trust,.cs-strategy,.cs-results{grid-template-columns:1fr}
  .cs-account{padding:22px}
  .cs-account-nums{gap:22px}
  .cs-bar-row{grid-template-columns:88px 1fr 44px;gap:9px}
  .cs-stack i span{display:none}
  .cs-cta{padding:24px}
}
@media(prefers-reduced-motion:reduce){
  .cs-trust-card{transition:none}
}