:root {
  --ink: #132033;
  --muted: #637083;
  --line: #d5dde8;
  --panel: #f3f6fa;
  --deep: #111d33;
  --blue: #145fb4;
  --cyan: #1595b0;
  --teal: #188b78;
  --amber: #f0b52b;
  --white: #fff;
  --max: 1080px;
  --pad: max(28px, calc((100vw - var(--max)) / 2));
  --shadow: 0 20px 54px rgba(19, 32, 51, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #f8fafc;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 0 var(--pad);
  border-bottom: 1px solid rgba(213, 221, 232, 0.72);
  background: rgba(248, 250, 252, 0.94);
  backdrop-filter: blur(12px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}
.brand img {
  width: 50px;
  height: 50px;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}
.brand span { display: grid; gap: 2px; }
.brand strong { font-size: 20px; line-height: 1; }
.brand small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.05;
}
.brand small:first-of-type {
  color: #415066;
  font-weight: 900;
}
.top-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.top-actions a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 900;
}

.top-primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 10px 24px rgba(18, 104, 214, 0.18);
}

.top-secondary {
  border: 1px solid rgba(20, 95, 180, 0.22);
  color: var(--blue);
  background: rgba(20, 95, 180, 0.06);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(520px, 0.96fr) minmax(440px, 1fr);
  gap: 36px;
  align-items: center;
  padding: 58px var(--pad);
  color: var(--white);
  background:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(120deg, #101a2d 0%, #12304a 58%, #164c53 100%);
  background-size: 34px 34px, 34px 34px, auto;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  left: var(--pad);
  right: var(--pad);
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(24, 166, 199, 0.8), transparent);
}
.hero > * {
  position: relative;
  z-index: 1;
}
.hero-copy {
  max-width: 760px;
}
.eyebrow {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  min-height: 28px;
  margin: 0 0 12px;
  padding: 0 10px;
  border: 1px solid rgba(24, 166, 199, 0.22);
  border-radius: 999px;
  color: var(--cyan);
  background: rgba(24, 166, 199, 0.08);
  font-size: 13px;
  font-weight: 900;
  line-height: 1;
}
.hero h1 {
  margin: 0;
  font-size: clamp(42px, 3.9vw, 52px);
  line-height: 1.05;
  letter-spacing: 0;
  white-space: nowrap;
}
.hero-answer {
  max-width: 720px;
  margin: 22px 0 0;
  color: #7ed9ee;
  font-size: clamp(22px, 1.85vw, 26px);
  font-weight: 900;
  line-height: 1.45;
}
.text-hot {
  color: #37e5ff;
  font-weight: 900;
}
.hero-subanswer {
  max-width: 760px;
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 18px;
  font-weight: 800;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.quick-promise {
  display: flex;
  margin-top: 10px;
}
.quick-promise span {
  color: rgba(255, 255, 255, 0.58);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.5;
}
.primary-button,
.secondary-button,
.quick-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 6px;
  font-weight: 900;
}
.primary-button,
.quick-form button {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 12px 30px rgba(18, 104, 214, 0.32);
}
.secondary-button {
  border: 1px solid rgba(126, 217, 238, 0.36);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.simple-diagram {
  position: relative;
  display: grid;
  grid-template-columns: minmax(102px, 0.8fr) auto minmax(196px, 1.14fr) auto minmax(142px, 0.96fr);
  gap: 12px;
  align-items: center;
  width: 100%;
  min-width: 0;
  padding: 24px;
  border: 1px solid rgba(126, 217, 238, 0.28);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(10px);
}
.camera-stack { display: grid; gap: 9px; }
.camera-stack span,
.soc-box span {
  display: grid;
  min-height: 44px;
  align-items: center;
  justify-items: center;
  padding: 9px 11px;
  border: 1px solid rgba(126, 217, 238, 0.34);
  border-radius: 6px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  font-weight: 900;
  white-space: nowrap;
}
.arrow {
  color: #7ed9ee;
  font-size: 30px;
  font-weight: 900;
}
.fpga-box {
  display: grid;
  min-width: 196px;
  min-height: 178px;
  align-content: center;
  justify-items: center;
  padding: 20px;
  border: 2px solid rgba(240, 181, 43, 0.95);
  border-radius: 8px;
  text-align: center;
  color: #1c2b10;
  background:
    linear-gradient(rgba(28,43,16,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28,43,16,0.07) 1px, transparent 1px),
    linear-gradient(135deg, #ffe39a, #f5bf2c);
  background-size: 18px 18px, 18px 18px, auto;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.52);
}
.fpga-box small {
  color: #5f4a12;
  font-size: 13px;
  font-weight: 900;
}
.fpga-box strong {
  margin-top: 12px;
  font-size: 28px;
  line-height: 1.15;
  white-space: nowrap;
}
.soc-box { display: grid; gap: 12px; }
.soc-box strong {
  display: grid;
  min-height: 82px;
  align-items: center;
  justify-items: center;
  padding: 14px 18px;
  border-radius: 8px;
  color: var(--white);
  background: linear-gradient(135deg, #0e1729, #136071);
  font-size: 22px;
  border: 1px solid rgba(126, 217, 238, 0.26);
  white-space: nowrap;
}

section { padding: 54px var(--pad); }
.plain-section {
  background: var(--white);
}
.plain-section.muted {
  background:
    linear-gradient(rgba(19,32,51,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(19,32,51,0.025) 1px, transparent 1px),
    var(--panel);
  background-size: 32px 32px, 32px 32px, auto;
}
.section-title {
  max-width: 100%;
  margin-bottom: 22px;
}
.section-title h2 {
  margin: 0;
  font-size: clamp(30px, 2.7vw, 38px);
  line-height: 1.18;
}
.compact-title { margin-bottom: 18px; }
#buy .compact-title {
  margin-bottom: 24px;
}

#buy .compact-title h2 {
  max-width: 760px;
}

#buy .compact-title .section-lead {
  max-width: 760px;
  margin: 8px 0 0;
}

.section-lead {
  max-width: 900px;
  margin: -8px 0 20px;
  color: #415066;
  font-size: 17px;
  line-height: 1.65;
  font-weight: 800;
}
.section-lead.strong-line {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-weight: 900;
}
.plain-card.big {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  box-shadow: var(--shadow);
  border-left: 5px solid var(--cyan);
}
.plain-card.big p {
  max-width: 900px;
  margin: 0;
  color: #344055;
  font-size: 26px;
  font-weight: 800;
  line-height: 1.45;
}

.summary-grid,
.problem-simple {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.summary-grid article {
  display: grid;
  grid-template-rows: 22px minmax(68px, auto) auto;
  align-content: start;
  gap: 10px;
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: linear-gradient(180deg, #ffffff, #f6f9fd);
  box-shadow: 0 12px 30px rgba(23, 32, 51, 0.07);
  border-top: 4px solid var(--cyan);
}
.summary-grid span {
  color: var(--teal);
  font-size: 14px;
  font-weight: 900;
}
.summary-grid strong {
  display: block;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.28;
  letter-spacing: 0;
}
.summary-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}
.problem-simple article,
.extended-grid article,
.pattern-grid article,
.effect-grid article,
.case-mini article,
.reuse-box,
.option-note article,
.buy-box,
.quick-form {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  box-shadow: 0 12px 30px rgba(23, 32, 51, 0.07);
}
.problem-simple article {
  position: relative;
  min-height: 150px;
  padding: 22px;
  overflow: hidden;
}
.problem-simple article::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(var(--blue), var(--cyan));
}
.problem-simple span {
  color: var(--teal);
  font-size: 14px;
  font-weight: 900;
}
.problem-simple h3,
.buy-box h3,
.quick-form h3 {
  margin: 10px 0;
  font-size: 24px;
  line-height: 1.25;
}
.problem-simple p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.choice-guide {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}
.choice-guide article {
  display: grid;
  gap: 8px;
  min-height: 116px;
  padding: 20px;
  border: 1px solid rgba(24, 166, 199, 0.22);
  border-radius: 10px;
  background: linear-gradient(180deg, #ffffff, #f6fbff);
  box-shadow: 0 10px 24px rgba(23, 32, 51, 0.06);
}
.choice-guide b {
  color: var(--blue);
  font-size: 19px;
  line-height: 1.25;
}
.choice-guide span {
  color: var(--muted);
  font-size: 16px;
}

.extended-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.extended-grid article {
  position: relative;
  display: grid;
  gap: 8px;
  min-height: 122px;
  align-content: start;
  padding: 20px;
  overflow: hidden;
}

.extended-grid article::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
}

.extended-grid strong {
  color: var(--blue);
  font-size: 20px;
  line-height: 1.25;
}

.extended-grid span {
  color: var(--muted);
  font-size: 15px;
}

.pattern-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.pattern-grid article {
  display: grid;
  gap: 6px;
  min-height: 146px;
  align-content: center;
  padding: 22px;
  position: relative;
  overflow: hidden;
}

.pattern-grid article::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
}

.pattern-grid strong {
  color: var(--blue);
  font-size: 31px;
  line-height: 1.1;
}

.pattern-grid span {
  color: var(--ink);
  font-size: 17px;
  font-weight: 900;
}

.pattern-grid em {
  color: #48566b;
  font-size: 14px;
  font-style: normal;
  line-height: 1.45;
}

.pattern-grid i {
  display: inline-flex;
  width: fit-content;
  margin-top: 4px;
  padding: 4px 9px;
  border-radius: 999px;
  color: #13506a;
  background: rgba(24, 166, 199, 0.09);
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.scene-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.scene-strip b {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  color: var(--ink);
  font-size: 14px;
  font-weight: 900;
}

.scene-strip span {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 13px;
  border: 1px solid rgba(24, 166, 199, 0.25);
  border-radius: 999px;
  color: #13506a;
  background: rgba(24, 166, 199, 0.08);
  font-size: 14px;
  font-weight: 900;
}

.fit-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  box-shadow: 0 12px 30px rgba(23, 32, 51, 0.07);
}

.fit-table th,
.fit-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.fit-table th {
  color: var(--ink);
  background: #f3f8fd;
  font-size: 16px;
}

.fit-table td {
  color: #415066;
  font-size: 16px;
  font-weight: 800;
}

.fit-table tr:last-child td {
  border-bottom: 0;
}

.fit-table td:last-child {
  color: var(--ink);
}

.spec-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  align-items: start;
  gap: 16px;
}

.spec-table {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--white);
  box-shadow: 0 12px 30px rgba(23, 32, 51, 0.07);
}

.spec-table div {
  display: grid;
  gap: 6px;
  align-content: start;
  min-height: 104px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.spec-table div:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.spec-table div:nth-last-child(-n + 2) { border-bottom: 0; }

.spec-table b {
  color: var(--blue);
  font-size: 16px;
}

.spec-table span {
  color: #415066;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.55;
}

.reuse-box {
  padding: 24px;
  border-left: 4px solid var(--cyan);
}

.reuse-box h3 {
  margin: 0 0 8px;
  font-size: 24px;
}

.reuse-box p {
  margin: 0;
  color: var(--muted);
  font-weight: 800;
}

.reuse-box ul {
  margin: 14px 0 0;
  padding-left: 20px;
}

.reuse-box li {
  margin: 8px 0;
  color: #415066;
  font-size: 16px;
  font-weight: 800;
}

.spec-note {
  margin: 16px 0 0;
  padding: 14px 16px;
  border: 1px solid rgba(24, 166, 199, 0.24);
  border-radius: 8px;
  color: #13506a;
  background: rgba(24, 166, 199, 0.07);
  font-size: 15px;
  font-weight: 900;
}

.buy-box {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--line);
}

.effect-grid,
.case-mini {
  display: grid;
  gap: 14px;
}

.effect-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.case-mini {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.effect-grid article,
.case-mini article {
  padding: 22px;
}

.effect-grid h3,
.case-mini h3 {
  margin: 0 0 10px;
  font-size: 24px;
  line-height: 1.25;
}

.case-mini span {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  color: #13506a;
  background: rgba(24, 166, 199, 0.1);
  font-size: 13px;
  font-weight: 900;
}

.effect-grid p,
.case-mini p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.business-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.business-tags em {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  padding: 0 10px;
  border: 1px solid rgba(24, 166, 199, 0.28);
  border-radius: 999px;
  color: #13506a;
  background: rgba(24, 166, 199, 0.09);
  font-size: 14px;
  font-style: normal;
  font-weight: 900;
}

.case-mini .case-detail {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: #415066;
  font-size: 15px;
  font-weight: 800;
}

.case-mini .case-detail + .case-detail {
  margin-top: 8px;
  padding-top: 0;
  border-top: 0;
}

.case-note {
  width: fit-content;
  margin: 14px 0 0;
  padding: 10px 14px;
  border-left: 4px solid var(--cyan);
  color: #344055;
  background: rgba(24, 166, 199, 0.08);
  font-size: 15px;
  font-weight: 900;
}

.case-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.case-stats b {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 11px;
  border: 1px solid rgba(18, 104, 214, 0.18);
  border-radius: 6px;
  color: var(--blue);
  background: rgba(18, 104, 214, 0.06);
  font-size: 15px;
  font-weight: 900;
}
.buy-box > div {
  min-height: 210px;
  padding: 30px;
  background: var(--white);
}
.buy-box > div:first-child {
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff, #f6fbff);
}
.buy-box ul {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}
.buy-box li {
  position: relative;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.5;
}

.buy-box li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--blue);
  transform: translateY(-50%);
}

.buy-box li strong {
  color: var(--blue);
  font-weight: 900;
}

.option-note {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.option-note article {
  padding: 20px;
  border-left: 4px solid var(--cyan);
}

.option-note strong {
  display: block;
  margin-bottom: 6px;
  color: var(--blue);
  font-size: 20px;
}

.option-note span {
  color: var(--muted);
  font-size: 16px;
  font-weight: 800;
}

.price-note {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  margin-top: 18px;
  padding: 18px 22px;
  border: 1px solid rgba(240, 181, 43, 0.38);
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(240, 181, 43, 0.12), #ffffff);
  box-shadow: 0 10px 24px rgba(23, 32, 51, 0.06);
}

.price-note strong {
  color: #7a5600;
  font-size: 20px;
  white-space: nowrap;
}

.price-note span {
  color: #415066;
  font-size: 16px;
  font-weight: 800;
}

.price-note span b {
  color: #7a5600;
  font-weight: 900;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(480px, 1fr) minmax(390px, 1fr);
  gap: 34px;
  align-items: center;
  color: var(--white);
  background:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(135deg, #111d33, #16404d);
  background-size: 34px 34px, 34px 34px, auto;
}
.hero .eyebrow,
.contact-section .eyebrow {
  border-color: rgba(126, 217, 238, 0.26);
  color: #7ad8d3;
  background: rgba(126, 217, 238, 0.1);
}
.contact-copy h2 {
  margin: 0;
  font-size: clamp(40px, 3.55vw, 50px);
  line-height: 1.15;
  white-space: nowrap;
}
.contact-copy p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 20px;
  max-width: 660px;
}
.next-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}
.next-steps span {
  display: grid;
  min-height: 58px;
  align-items: center;
  padding: 12px;
  border: 1px solid rgba(126, 217, 238, 0.28);
  border-radius: 8px;
  color: #e9fbff;
  background: rgba(255, 255, 255, 0.08);
  font-size: 15px;
  font-weight: 900;
  text-align: center;
}
.contact-row {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  max-width: 520px;
  margin-top: 26px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}
.contact-row img {
  width: 116px;
  height: 116px;
  border-radius: 6px;
  object-fit: cover;
  object-position: center 63%;
  background: var(--white);
}
.contact-row div { display: grid; gap: 7px; }
.contact-row strong { font-size: 24px; }
.contact-row a { color: rgba(255, 255, 255, 0.84); }

.quick-form {
  display: grid;
  gap: 12px;
  padding: 24px;
  color: var(--ink);
  border-top: 4px solid var(--cyan);
}
.quick-form h3 { margin: 0 0 2px; }
.quick-form p {
  margin: -2px 0 6px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 800;
}
.quick-form label {
  display: grid;
  gap: 7px;
  color: #344055;
  font-size: 15px;
  font-weight: 900;
}
input,
textarea {
  width: 100%;
  min-height: 44px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  font: inherit;
}
textarea { min-height: 92px; resize: vertical; }
.quick-form button { width: 100%; border: 0; font: inherit; cursor: pointer; }
.quick-form small {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.sticky-cta {
  position: fixed;
  right: 22px;
  bottom: 20px;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}
.sticky-cta span {
  color: var(--ink);
  font-size: 13px;
  font-weight: 900;
}
.sticky-cta a {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  padding: 0 12px;
  border-radius: 6px;
  color: var(--white);
  background: var(--blue);
  font-size: 13px;
  font-weight: 900;
}
.sticky-cta a:last-child {
  color: var(--blue);
  background: rgba(23, 105, 224, 0.1);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  padding: 28px var(--pad);
  border-top: 1px solid var(--line);
  color: #415066;
  background: #f8fafc;
  font-size: 14px;
  font-weight: 800;
}

.site-footer strong {
  color: var(--ink);
  font-size: 16px;
}

.site-footer span {
  color: var(--muted);
}

.site-footer a {
  color: var(--blue);
}

@media (max-width: 1040px) {
  .hero,
  .contact-section {
    grid-template-columns: 1fr;
  }
  .contact-copy h2 {
    white-space: normal;
  }
  .summary-grid,
  .problem-simple {
    grid-template-columns: 1fr;
  }

  .choice-guide,
  .extended-grid,
  .spec-layout,
  .next-steps {
    grid-template-columns: 1fr;
  }

  .pattern-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .effect-grid,
  .case-mini {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1041px) {
  #meaning .section-title h2,
  #problem .section-title h2,
  #patterns .section-title h2 {
    white-space: nowrap;
  }
}

@media (max-width: 760px) {
  body { padding-bottom: 68px; }
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 12px 5vw;
  }
  .brand img { width: 44px; height: 44px; }
  .brand small { display: none; }
  .top-actions {
    width: 100%;
  }
  .top-actions a {
    flex: 1;
  }
  .hero,
  section {
    padding-left: 5vw;
    padding-right: 5vw;
  }
  .hero { padding-top: 38px; padding-bottom: 48px; }
  .hero h1 {
    font-size: 42px;
    white-space: normal;
  }
  .hero-answer { font-size: 21px; }
  .quick-promise span { width: auto; }
  .simple-diagram {
    grid-template-columns: 1fr;
  }
  .arrow { transform: rotate(90deg); justify-self: center; }
  .fpga-box { min-height: 160px; }
  .buy-box,
  .contact-row,
  .price-note,
  .option-note {
    grid-template-columns: 1fr;
  }
  .buy-box > div:first-child {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .spec-table div {
    grid-template-columns: 1fr;
    gap: 4px;
    min-height: auto;
    border-right: 0;
  }
  .spec-table {
    grid-template-columns: 1fr;
  }
  .spec-table div:nth-last-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }
  .spec-table div:last-child {
    border-bottom: 0;
  }
  .pattern-grid {
    grid-template-columns: 1fr;
  }
  .choice-guide {
    grid-template-columns: 1fr;
  }
  .extended-grid {
    grid-template-columns: 1fr;
  }
  .plain-card.big p,
  .contact-copy p {
    font-size: 18px;
  }
  .contact-row img { width: 160px; height: 160px; }
  .sticky-cta {
    right: 10px;
    bottom: 10px;
    left: 10px;
    justify-content: space-between;
  }
  .sticky-cta span { display: none; }
  .sticky-cta a { flex: 1; justify-content: center; }
  .site-footer {
    padding-bottom: 90px;
  }
}