/* ============================================================
   划船机配速与功率换算器 · 独立视觉：深墨绿 + 机械琥珀
   ============================================================ */

.rwx-page {
  --rwx-bg: #edf2ef;
  --rwx-bg-2: #e0e8e3;
  --rwx-card: #ffffff;
  --rwx-soft: #f2f6f4;
  --rwx-soft-2: #e2ebe6;
  --rwx-ink: #0e1f1a;
  --rwx-muted: #5b706a;
  --rwx-line: #d7e2dc;
  --rwx-amber: #d2690f;
  --rwx-amber-soft: rgba(210, 105, 15, .1);
  --rwx-teal: #0f7a63;
  --rwx-ok: #177a4b;
  --rwx-warn: #a45b06;
  --rwx-bad: #b42318;
  --rwx-steel: #334a43;
  --rwx-shadow: 0 14px 38px rgba(14, 40, 33, .09);

  background: var(--rwx-bg);
  color: var(--rwx-ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.78;
  padding-bottom: 48px;
  transition: background-color .2s ease, color .2s ease;
}

:root[data-theme="dark"] .rwx-page {
  --rwx-bg: #06110e;
  --rwx-bg-2: #0b1a16;
  --rwx-card: #0d1b17;
  --rwx-soft: #122420;
  --rwx-soft-2: #1a312b;
  --rwx-ink: #e6f1ec;
  --rwx-muted: #98ada6;
  --rwx-line: #213a33;
  --rwx-amber: #ff9d4f;
  --rwx-amber-soft: rgba(255, 157, 79, .12);
  --rwx-teal: #4fd1ab;
  --rwx-ok: #5fd39c;
  --rwx-warn: #f0b45f;
  --rwx-bad: #f08a80;
  --rwx-steel: #9db5ad;
  --rwx-shadow: 0 14px 38px rgba(0, 0, 0, .5);
}

html[data-theme="dark"] .rwx-page { color-scheme: dark; }

.rwx-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 20px 0;
}

/* ---------- 面包屑 ---------- */
.rwx-crumb { font-size: 13px; color: var(--rwx-muted); margin-bottom: 14px; }
.rwx-crumb a { color: var(--rwx-muted); text-decoration: none; }
.rwx-crumb a:hover { color: var(--rwx-teal); }

/* ---------- Hero ---------- */
.rwx-hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 26px;
  align-items: center;
  background:
    radial-gradient(620px 260px at 88% -20%, rgba(210, 138, 32, .22), transparent 70%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, .028) 0 1px, transparent 1px 26px),
    linear-gradient(140deg, #0b2b23, #051410 74%);
  border: 1px solid #1d3a31;
  border-radius: 22px;
  padding: 28px 30px;
  box-shadow: 0 18px 46px rgba(4, 18, 14, .32);
  margin-bottom: 20px;
  color: #eef6f2;
}
.rwx-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: #ffb066;
  background: rgba(255, 157, 79, .1);
  border: 1px solid rgba(255, 157, 79, .28);
  border-radius: 999px;
  padding: 3px 11px;
  margin-bottom: 10px;
}
.rwx-hero h1 {
  font-size: 30px;
  line-height: 1.3;
  margin: 0 0 10px;
  letter-spacing: -.015em;
  color: #ffffff;
}
.rwx-hero p { margin: 0; font-size: 14.5px; color: #b3c8c0; max-width: 640px; }
.rwx-hero p b { color: #ffb066; font-weight: 600; }
.rwx-hero-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.rwx-hero-meta span {
  font-size: 12px;
  color: #cfe0d9;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 8px;
  padding: 4px 10px;
}

/* 数字屏 + 飞轮 */
.rwx-hud {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid rgba(255, 157, 79, .3);
  border-radius: 16px;
  background: rgba(255, 255, 255, .025);
  padding: 16px 16px 14px;
  box-shadow: inset 0 0 34px rgba(255, 157, 79, .05);
}
.rwx-flywheel {
  position: relative;
  flex: none;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(255, 157, 79, .85) 0 12deg, rgba(255, 157, 79, .16) 12deg 45deg, rgba(255, 157, 79, .8) 45deg 57deg, rgba(255, 157, 79, .16) 57deg 90deg, rgba(255, 157, 79, .75) 90deg 102deg, rgba(255, 157, 79, .16) 102deg 135deg, rgba(255, 157, 79, .8) 135deg 147deg, rgba(255, 157, 79, .16) 147deg 180deg, rgba(255, 157, 79, .75) 180deg 192deg, rgba(255, 157, 79, .16) 192deg 225deg, rgba(255, 157, 79, .8) 225deg 237deg, rgba(255, 157, 79, .16) 237deg 270deg, rgba(255, 157, 79, .75) 270deg 282deg, rgba(255, 157, 79, .16) 282deg 315deg, rgba(255, 157, 79, .8) 315deg 327deg, rgba(255, 157, 79, .16) 327deg 360deg);
  -webkit-mask: radial-gradient(circle, transparent 55%, #000 56%);
  mask: radial-gradient(circle, transparent 55%, #000 56%);
  animation: rwx-spin 9s linear infinite;
}
@keyframes rwx-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .rwx-flywheel { animation: none; }
}
.rwx-screen { min-width: 0; }
.rwx-screen small {
  display: block;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 9.5px;
  letter-spacing: .2em;
  color: #90a89f;
  margin-bottom: 4px;
}
.rwx-screen strong {
  display: block;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 38px;
  line-height: 1.05;
  color: #ffb066;
  letter-spacing: -.03em;
}
.rwx-screen em {
  display: block;
  font-style: normal;
  font-size: 11px;
  color: #a9beb6;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  letter-spacing: .05em;
  margin-top: 3px;
}
.rwx-screen-row {
  display: flex;
  gap: 14px;
  margin-top: 9px;
  padding-top: 9px;
  border-top: 1px dashed rgba(255, 255, 255, .12);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 10px;
  color: #8ea59c;
}
.rwx-screen-row b { color: #e6f1ec; font-weight: 600; }

/* ---------- 提示 ---------- */
.rwx-error {
  display: none;
  margin-bottom: 16px;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 13px;
  color: var(--rwx-bad);
  background: rgba(180, 35, 24, .07);
  border: 1px solid rgba(180, 35, 24, .22);
}
.rwx-error.on { display: block; }

/* ---------- 布局 ---------- */
.rwx-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 396px;
  gap: 20px;
  align-items: start;
  margin-bottom: 22px;
}
.rwx-col { min-width: 0; }

/* ---------- 卡片 ---------- */
.rwx-card {
  background: var(--rwx-card);
  border: 1px solid var(--rwx-line);
  border-radius: 18px;
  padding: 20px 22px;
  box-shadow: var(--rwx-shadow);
  margin-bottom: 18px;
}
.rwx-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.rwx-card-head h2 { font-size: 17px; margin: 0; letter-spacing: -.01em; }
.rwx-card-head span { font-size: 12.5px; color: var(--rwx-muted); }

/* ---------- 双向换算输入 ---------- */
.rwx-dual {
  display: grid;
  grid-template-columns: 1fr 34px 1fr;
  gap: 10px;
  align-items: end;
}
.rwx-field { min-width: 0; }
.rwx-field > label { display: block; font-size: 12.5px; color: var(--rwx-muted); margin-bottom: 5px; }
.rwx-unit {
  display: flex;
  align-items: center;
  background: var(--rwx-soft);
  border: 1px solid var(--rwx-line);
  border-radius: 12px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.rwx-unit:focus-within {
  border-color: var(--rwx-amber);
  box-shadow: 0 0 0 3px rgba(210, 105, 15, .16);
}
.rwx-unit input {
  flex: 1;
  min-width: 0;
  height: 48px;
  padding: 0 12px;
  border: 0;
  background: transparent;
  color: var(--rwx-ink);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 20px;
  letter-spacing: -.01em;
  outline: none;
}
.rwx-unit em {
  font-style: normal;
  font-size: 11.5px;
  color: var(--rwx-muted);
  padding-right: 12px;
  white-space: nowrap;
}
.rwx-swap {
  align-self: end;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  color: var(--rwx-muted);
  font-family: ui-monospace, monospace;
  font-size: 15px;
  border: 1px dashed var(--rwx-line);
  border-radius: 10px;
  background: var(--rwx-soft);
}
.rwx-hint { margin: 11px 0 0; font-size: 12.5px; color: var(--rwx-muted); }
.rwx-hint b { color: var(--rwx-ink); }
.rwx-duration { margin-top: 14px; max-width: 230px; }

/* ---------- 成绩换算 ---------- */
.rwx-result-in {
  margin-top: 16px;
  padding-top: 15px;
  border-top: 1px dashed var(--rwx-line);
}
.rwx-result-in h3 { font-size: 13px; margin: 0 0 9px; color: var(--rwx-muted); font-weight: 600; }
.rwx-result-row {
  display: grid;
  grid-template-columns: 150px 1fr auto;
  gap: 9px;
  align-items: end;
}
.rwx-select {
  height: 42px;
  padding: 0 10px;
  border: 1px solid var(--rwx-line);
  border-radius: 10px;
  background: var(--rwx-soft);
  color: var(--rwx-ink);
  font-family: inherit;
  font-size: 13px;
  outline: none;
}
.rwx-time-input {
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--rwx-line);
  border-radius: 10px;
  background: var(--rwx-soft);
  color: var(--rwx-ink);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 15px;
  outline: none;
  min-width: 0;
}
.rwx-time-input:focus {
  border-color: var(--rwx-amber);
  box-shadow: 0 0 0 3px rgba(210, 105, 15, .16);
  background: var(--rwx-card);
}

/* ---------- 按钮 ---------- */
.rwx-actions { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 16px; }
.rwx-btn {
  height: 42px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: var(--rwx-amber);
  color: #fff9f3;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .12s ease, filter .15s ease, background-color .15s ease;
}
.rwx-btn:hover { filter: brightness(.95); }
.rwx-btn:active { transform: translateY(1px); }
.rwx-btn.ghost {
  background: var(--rwx-card);
  border-color: var(--rwx-line);
  color: var(--rwx-ink);
  font-weight: 500;
}
.rwx-btn.ghost:hover { border-color: var(--rwx-amber); background: var(--rwx-soft); }
.rwx-btn.small { height: 36px; padding: 0 14px; font-size: 13px; }
.rwx-btn:disabled { opacity: .55; cursor: not-allowed; }

/* ---------- 结果卡 ---------- */
.rwx-result {
  background:
    radial-gradient(340px 170px at 100% 0, var(--rwx-amber-soft), transparent 70%),
    var(--rwx-card);
  border: 1px solid var(--rwx-line);
  border-radius: 18px;
  padding: 20px 22px;
  box-shadow: var(--rwx-shadow);
  margin-bottom: 18px;
}
.rwx-result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.rwx-result-head h2 { font-size: 16px; margin: 0; }
.rwx-chip {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--rwx-amber);
  background: var(--rwx-amber-soft);
  border: 1px solid rgba(210, 105, 15, .22);
  white-space: nowrap;
}
.rwx-split {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 10px 0 8px;
}
.rwx-split strong {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 52px;
  line-height: 1;
  letter-spacing: -.045em;
}
.rwx-split em {
  font-style: normal;
  font-size: 12px;
  font-weight: 700;
  color: var(--rwx-muted);
  letter-spacing: .06em;
}
.rwx-sub { font-size: 12px; color: var(--rwx-muted); }
.rwx-sub b { color: var(--rwx-ink); }
.rwx-kpis {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rwx-line);
  border: 1px solid var(--rwx-line);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 14px;
}
.rwx-kpi { background: var(--rwx-card); padding: 10px 12px; min-width: 0; }
.rwx-kpi small { display: block; font-size: 11.5px; color: var(--rwx-muted); margin-bottom: 2px; }
.rwx-kpi b {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 20px;
  letter-spacing: -.02em;
}
.rwx-kpi span { font-size: 11px; color: var(--rwx-muted); margin-left: 3px; }

.rwx-lines { margin-top: 14px; }
.rwx-line-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--rwx-line);
  font-size: 12.5px;
}
.rwx-line-row:last-child { border-bottom: 0; }
.rwx-line-row span { color: var(--rwx-muted); }
.rwx-line-row b {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 13px;
  text-align: right;
}
.rwx-note {
  margin-top: 13px;
  padding: 9px 12px;
  border-radius: 10px;
  background: var(--rwx-soft);
  border: 1px solid var(--rwx-line);
  font-size: 12px;
  color: var(--rwx-muted);
  line-height: 1.65;
}
.rwx-note b { color: var(--rwx-ink); }

/* ---------- 2000 米预测 ---------- */
.rwx-predict-fields {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  align-items: end;
}
.rwx-predict-main {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 0 10px;
  border-bottom: 1px solid var(--rwx-line);
}
.rwx-predict-main strong {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 40px;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--rwx-amber);
}
.rwx-predict-main span { font-size: 12px; color: var(--rwx-muted); }
.rwx-scenarios {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rwx-line);
  border: 1px solid var(--rwx-line);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 13px;
}
.rwx-scenario { background: var(--rwx-card); padding: 9px 11px; min-width: 0; }
.rwx-scenario small { display: block; font-size: 11px; color: var(--rwx-muted); margin-bottom: 2px; }
.rwx-scenario b {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 15px;
}
.rwx-scenario em { display: block; font-style: normal; font-size: 10.5px; color: var(--rwx-muted); margin-top: 1px; }

/* ---------- 批量 ---------- */
.rwx-textarea {
  display: block;
  width: 100%;
  min-height: 110px;
  padding: 10px 12px;
  border: 1px solid var(--rwx-line);
  border-radius: 11px;
  background: var(--rwx-soft);
  color: var(--rwx-ink);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 13px;
  line-height: 1.75;
  resize: vertical;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.rwx-textarea:focus {
  border-color: var(--rwx-amber);
  box-shadow: 0 0 0 3px rgba(210, 105, 15, .16);
  background: var(--rwx-card);
}
.rwx-batch-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.rwx-batch-count { margin-top: 9px; font-size: 12.5px; color: var(--rwx-muted); }
.rwx-batch-count b { color: var(--rwx-ink); }

/* ---------- 表格 ---------- */
.rwx-tbl-wrap {
  margin-top: 12px;
  overflow-x: auto;
  border: 1px solid var(--rwx-line);
  border-radius: 12px;
}
.rwx-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 520px; }
.rwx-table th {
  text-align: left;
  padding: 9px 12px;
  background: var(--rwx-soft);
  color: var(--rwx-muted);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  border-bottom: 1px solid var(--rwx-line);
}
.rwx-table td { padding: 9px 12px; border-bottom: 1px solid var(--rwx-line); vertical-align: middle; }
.rwx-table tr:last-child td { border-bottom: 0; }
.rwx-table tbody tr:hover td { background: var(--rwx-soft); }
.rwx-num { font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace; }
.rwx-tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 11.5px;
  line-height: 1.7;
  background: var(--rwx-soft-2);
  color: var(--rwx-ink);
  white-space: nowrap;
}

/* ---------- 区块 ---------- */
.rwx-block {
  background: var(--rwx-card);
  border: 1px solid var(--rwx-line);
  border-radius: 18px;
  padding: 22px 24px;
  box-shadow: var(--rwx-shadow);
  margin-bottom: 20px;
}
.rwx-block > h2 { font-size: 20px; margin: 0 0 6px; letter-spacing: -.01em; }
.rwx-block > p.lead { margin: 0 0 16px; font-size: 13.5px; color: var(--rwx-muted); }
.rwx-block > p b { color: var(--rwx-ink); }

.rwx-formula {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 14px;
}
.rwx-formula div {
  background: var(--rwx-soft);
  border: 1px solid var(--rwx-line);
  border-radius: 12px;
  padding: 12px 14px;
}
.rwx-formula h3 { margin: 0 0 5px; font-size: 12.5px; color: var(--rwx-muted); font-weight: 600; }
.rwx-formula code {
  display: block;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
  font-size: 13px;
  color: var(--rwx-amber);
  word-break: break-word;
  line-height: 1.6;
}
.rwx-formula p { margin: 6px 0 0; font-size: 11.5px; color: var(--rwx-muted); }

.rwx-reference td:first-child { font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace; font-weight: 600; }

/* FAQ */
.rwx-faq details {
  border: 1px solid var(--rwx-line);
  border-radius: 12px;
  padding: 0 16px;
  margin-bottom: 9px;
  background: var(--rwx-card);
}
.rwx-faq summary {
  cursor: pointer;
  list-style: none;
  padding: 12px 24px 12px 0;
  font-size: 14px;
  font-weight: 600;
  position: relative;
}
.rwx-faq summary::-webkit-details-marker { display: none; }
.rwx-faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-family: ui-monospace, monospace;
  color: var(--rwx-muted);
  font-size: 16px;
}
.rwx-faq details[open] summary::after { content: "–"; }
.rwx-faq details p {
  margin: 0 0 13px;
  font-size: 13px;
  color: var(--rwx-muted);
  line-height: 1.8;
}
.rwx-faq details p b { color: var(--rwx-ink); }

.rwx-disclaimer {
  font-size: 12px;
  color: var(--rwx-muted);
  line-height: 1.8;
  padding: 14px 16px;
  border: 1px dashed var(--rwx-line);
  border-radius: 12px;
  background: var(--rwx-soft);
}

/* ---------- AI ---------- */
.rwx-ai {
  background: var(--rwx-card);
  border: 1px solid var(--rwx-line);
  border-radius: 18px;
  padding: 18px 20px;
  box-shadow: var(--rwx-shadow);
}
.rwx-ai-btn {
  width: 100%;
  height: 42px;
  border: 1px solid var(--rwx-amber);
  border-radius: 10px;
  background: transparent;
  color: var(--rwx-amber);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease;
}
.rwx-ai-btn:hover { background: var(--rwx-amber); color: #fff9f3; }
.rwx-ai-btn:disabled { opacity: .55; cursor: not-allowed; }
.rwx-ai-note { margin: 8px 0 0; font-size: 11.5px; color: var(--rwx-muted); line-height: 1.6; }
.rwx-ai-status {
  display: none;
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--rwx-soft);
  border: 1px solid var(--rwx-line);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--rwx-ink);
  white-space: pre-wrap;
  word-break: break-word;
}
.rwx-ai-status.on { display: block; }
.rwx-ai-status.err { color: var(--rwx-bad); border-color: rgba(180, 35, 24, .3); background: rgba(180, 35, 24, .06); }

.rwx-page [hidden] { display: none !important; }
.rwx-copy-holder { position: fixed; left: -9999px; top: 0; opacity: 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 1060px) {
  .rwx-grid { grid-template-columns: 1fr; }
  .rwx-hero { grid-template-columns: minmax(0, 1fr) 260px; }
  .rwx-formula { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .rwx-shell { padding: 14px 14px 0; }
  .rwx-hero { grid-template-columns: 1fr; padding: 22px 20px; }
  .rwx-hero h1 { font-size: 25px; }
  .rwx-hud { max-width: 330px; }
  .rwx-card, .rwx-block, .rwx-result, .rwx-ai { padding: 17px 16px; border-radius: 15px; }
  .rwx-dual { grid-template-columns: 1fr; gap: 8px; }
  .rwx-swap { display: none; }
  .rwx-result-row { grid-template-columns: 1fr 1fr; }
  .rwx-result-row .rwx-btn { grid-column: 1 / -1; }
  .rwx-predict-fields { grid-template-columns: 1fr 1fr; }
  .rwx-predict-fields .rwx-field:first-child { grid-column: 1 / -1; }
  .rwx-split strong { font-size: 44px; }
  .rwx-predict-main strong { font-size: 34px; }
  .rwx-block > h2 { font-size: 18px; }
}

@media (max-width: 420px) {
  .rwx-hero { padding: 18px 16px; }
  .rwx-hero h1 { font-size: 22px; }
  .rwx-hero p { font-size: 13.5px; }
  .rwx-screen strong { font-size: 32px; }
  .rwx-flywheel { width: 70px; height: 70px; }
  .rwx-kpis { grid-template-columns: 1fr; }
  .rwx-scenarios { grid-template-columns: 1fr; }
  .rwx-actions .rwx-btn { flex: 1 1 calc(50% - 9px); padding: 0 10px; }
  .rwx-card-head { flex-wrap: wrap; gap: 4px; }
}

/* ---------- 打印 ---------- */
@media print {
  .rwx-page { background: #fff; color: #000; padding: 0; }
  .rwx-crumb, .rwx-hero, .rwx-ai, .rwx-actions, .rwx-textarea,
  .rwx-batch-actions, .rwx-faq, .rwx-result-in { display: none !important; }
  .rwx-shell { max-width: none; padding: 0; }
  .rwx-grid { display: block; }
  .rwx-card, .rwx-block, .rwx-result { box-shadow: none; border-color: #ccc; page-break-inside: avoid; }
}