/* ════ #supply 中美两段式供应链（P10 · 源 App.tsx L1717-1940 1:1）════
   双 accent 面板（灰=中国骨架 / 橙=美国皮肤）+ desktop 7 节点流程 / mobile 4 步虚线 + closing CTA */

.sec-supply{background:#fff;padding-block:64px;padding-inline:var(--section-px)}

/* ── 头行（区块头行范式第 4 例：胶囊+副题+H2+右注记）── */
.s-head{margin-bottom:32px}
.s-pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:11.5px;font-weight:600;background:#fff2eb;color:#c44000;border:1px solid #ffdabf;margin-bottom:16px}
.s-pill i{width:6px;height:6px;border-radius:50%;background:var(--c-brand);animation:blink 2s infinite}
.s-sub{display:none}
.s-title{font-family:var(--font-latin);font-size:clamp(28px,4vw,52px);font-weight:700;line-height:1.05;
  letter-spacing:-.03em;color:#111}
.s-title span{color:var(--c-brand)}
.s-note{display:none}

/* ── 双面板：CHINA 灰 accent / USA 橙 accent ── */
.s-panels{display:grid;grid-template-columns:1fr;gap:20px;margin-bottom:20px}
.s-panel{position:relative;display:flex;flex-direction:column;overflow:hidden;border-radius:24px;background:#fff}
.s-panel--cn{border:1.5px solid #e8e6e0;box-shadow:0 8px 40px rgba(0,0,0,.06)}
.s-panel--us{background:#fffaf7;border:1.5px solid #ffd8c0;box-shadow:0 8px 40px rgba(255,82,0,.08)}
.s-bar{height:4px;flex-shrink:0}
.s-panel--cn .s-bar{background:linear-gradient(90deg,#555,#b0ada6)}
.s-panel--us .s-bar{background:linear-gradient(90deg,#ff5200,#ff9a50)}
.s-wm{position:absolute;bottom:16px;right:20px;line-height:1;pointer-events:none;user-select:none;
  font-family:var(--font-latin);font-size:clamp(72px,8vw,110px);font-weight:900;letter-spacing:-.06em}
.s-panel--cn .s-wm{color:#f2f0ec}
.s-panel--us .s-wm{color:#ffe8d8}
.s-body{position:relative;display:flex;flex-direction:column;flex:1;padding:20px}
.s-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:20px}
.s-eyebrow{font-size:10.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;margin-bottom:6px}
.s-panel--cn .s-eyebrow{color:#888}
.s-panel--us .s-eyebrow{color:#ff7030}
.s-h3{font-family:var(--font-latin);font-size:clamp(22px,2.2vw,32px);font-weight:900;line-height:1;letter-spacing:-.03em;color:#111}
.s-ico{width:44px;height:44px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-size:22px;flex-shrink:0}
.s-panel--cn .s-ico{background:#f4f3f0;border:1.5px solid #e4e2dc}
.s-panel--us .s-ico{background:#fff2eb;border:1.5px solid #ffd0a8}
.s-desc{margin-bottom:20px;padding-left:16px;border-left:2.5px solid #e0ddd8;
  font-size:13.5px;font-weight:500;line-height:1.75;color:#555}
.s-panel--us .s-desc{border-left-color:#ffd0a8;color:#994030}
.s-rows{display:flex;flex-direction:column;gap:8px}
.s-row{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:12px;
  background:#f8f7f5;border:1px solid #edebe6}
.s-panel--us .s-row{background:rgba(255,255,255,.85);border-color:rgba(255,150,90,.25)}
.s-num{width:18px;flex-shrink:0;text-align:center;font-family:var(--font-latin);font-size:10px;font-weight:900;
  font-variant-numeric:tabular-nums;color:#d0ccc4}
.s-panel--us .s-num{color:#ffb890}
.s-div{width:1px;height:16px;flex-shrink:0;background:#e4e2dc}
.s-panel--us .s-div{background:#ffd0b0}
.s-label{font-size:13px;font-weight:700;color:#222}
.s-row em{margin-left:auto;font-style:normal;font-size:13px;color:#666}
.s-panel--us .s-row em{color:#994030}

/* ── desktop 流程（≥1024）：zone 头条 + 7 节点 ── */
.s-flow{display:none;overflow:hidden;margin-bottom:20px;background:#fff;border:1.5px solid #ede9e4;border-radius:24px}
.s-zones{display:flex;border-bottom:1px solid #f0ede8}
.s-zone{display:flex;align-items:center;gap:8px;padding:10px 24px;font-size:10.5px;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase}
.s-zone i{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.s-zone--cn{flex:2;color:#b8b4ac}
.s-zone--cn i{background:#c0bdb6}
.s-zone--transit{flex-shrink:0;padding-inline:20px;letter-spacing:.1em;color:#ffb060}
.s-zone--us{flex:4;justify-content:flex-end;color:#ff6830}
.s-zone--us i{background:var(--c-brand)}
.s-zone-sep{width:1px;background:#f0ede8}
.s-nodes{display:flex}
.s-node{position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:8px;padding-block:24px}
.s-nico{width:52px;height:52px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:22px;
  box-shadow:0 2px 8px rgba(0,0,0,.05)}
.s-node--cn .s-nico{background:#f8f7f5;border:2px solid #e8e5e0}
.s-node--transit .s-nico,.s-node--us .s-nico{border:2px solid #ffcfb3}
.s-node--transit .s-nico{background:#fff5ee}
.s-node--us .s-nico{background:#fff0e5;box-shadow:0 2px 12px rgba(255,82,0,.12)}
.s-nlabel{font-size:12px;font-weight:700;text-align:center;line-height:1.25;padding-inline:4px;color:#222}
.s-nsub{font-size:10px;font-weight:500;text-align:center;color:#666}
.s-node--transit .s-nsub{color:#ffaa60}
.s-node--us .s-nsub{color:#ff7030}
.s-narrow{position:absolute;right:0;top:50%;z-index:10;width:20px;height:20px;border-radius:50%;
  transform:translate(50%,-50%);display:flex;align-items:center;justify-content:center;
  background:#fff;border:1.5px solid #e0ddd8}
.s-node--transit .s-narrow,.s-node--us .s-narrow{border-color:#ffd0b0}

/* ── mobile 流程（<1024）：4 步虚线 ── */
.s-mflow{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;
  padding:20px 16px;background:#fff;border:1.5px solid #ede9e4;border-radius:16px}
.s-mstep{display:flex;align-items:center;flex:1}
.s-mcol{display:flex;flex-direction:column;align-items:center;gap:4px}
.s-mico{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:18px;background:#f8f7f5;border:1.5px solid #eaeae8}
.s-mcol--us .s-mico{background:#fff2eb;border-color:#ffd0b0}
.s-mlabel{font-size:11px;font-weight:700;text-align:center;line-height:1.25;color:#222}
.s-msub{font-size:10px;text-align:center;color:#999}
.s-mcol--us .s-msub{color:#ff7030}
.s-mdash{flex:1;height:1px;margin-inline:4px;
  background:repeating-linear-gradient(90deg,#ffd0b0 0,#ffd0b0 3px,transparent 3px,transparent 7px)}

/* ── closing CTA ── */
.s-close{display:flex;flex-direction:column;gap:20px;padding:20px;border-radius:16px;
  background:linear-gradient(135deg,#fff5ee,#ffede0);border:1.5px solid #ffcfb3}
.s-close-main{flex:1}
.s-close-h{font-family:var(--font-latin);font-size:clamp(16px,1.8vw,21px);font-weight:900;line-height:1.375;
  letter-spacing:-.02em;color:#111;margin-bottom:8px}
.s-close-h span{color:var(--c-brand)}
.s-close-sub{font-size:13px;font-weight:500;color:#888}
.s-close .tcta{padding:14px 28px;font-size:14px;font-weight:700;box-shadow:0 4px 20px rgba(255,82,0,.3)}

/* ── desktop ≥1024 ── */
@media (min-width:1024px){
  .sec-supply{padding-block:96px}
  .s-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:56px}
  .s-head > div:first-child .s-pill{margin-bottom:20px}
  .s-sub{display:block;font-size:15px;font-weight:500;color:#777;margin-bottom:6px}
  .s-note{display:block;max-width:260px;padding-bottom:4px;font-size:14px;font-weight:500;
    line-height:1.7;color:#aaa;text-align:right}
  .s-panels{grid-template-columns:1fr 1fr}
  .s-body{padding:32px}
  .s-flow{display:block}
  .s-mflow{display:none}
}
@media (min-width:640px){
  .s-close{flex-direction:row;align-items:center;padding-inline:20px}
  .s-br{display:none}
}
@media (prefers-reduced-motion:reduce){
  .s-pill i{animation:none}
}