/**
 * 图灵助手官网 — 飞书风格落地页 (fs-*)
 */
body.fs-home-page {
  background: #f5f7fa !important;
  color: #1f2329;
}
body.fs-home-page #root {
  width: 100%;
  max-width: none;
  padding: 0;
}
body.fs-home-page .fs-home {
  overflow-x: hidden;
  background:
    radial-gradient(ellipse 90% 60% at 50% -5%, rgba(51, 112, 255, 0.08), transparent 55%),
    linear-gradient(180deg, #f0f6ff 0%, #f5f7fa 40%, #fff 100%);
}

.fs-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Hero ── */
.fs-hero {
  padding: clamp(24px, 4vw, 48px) 0 0;
  position: relative;
}
.fs-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 1.05fr);
  gap: 32px;
  align-items: center;
}
.fs-hero-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.fs-hero-brand img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}
.fs-hero-brand-name {
  font-size: 15px;
  font-weight: 700;
  color: #1f2329;
}
.fs-hero-brand-sep {
  width: 1px;
  height: 14px;
  background: #c9cdd4;
}
.fs-hero-brand-sub {
  font-size: 13px;
  font-weight: 600;
  color: #86909c;
}
.fs-hero-copy h1 {
  margin: 0 0 12px;
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #1f2329;
}
.fs-hero-sub {
  margin: 0 0 12px;
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 500;
  color: #4e5969;
}
.fs-hero-link {
  display: inline-block;
  margin-bottom: 24px;
  font-size: 14px;
  font-weight: 600;
  color: #3370ff;
  text-decoration: none;
}
.fs-hero-link:hover {
  text-decoration: underline;
}
.fs-hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 8px 0 28px;
  border-radius: 999px;
  background: linear-gradient(90deg, #5b9cff, #3370ff);
  color: #fff !important;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none !important;
  box-shadow: 0 12px 32px rgba(51, 112, 255, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}
.fs-hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(51, 112, 255, 0.42);
}
.fs-hero-cta em {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fff;
  color: #3370ff;
  font-style: normal;
}
.fs-hero-cta em svg {
  width: 20px;
  height: 20px;
}

/* Hero visual mocks */
.fs-hero-visual {
  position: relative;
  min-height: 380px;
}
.fs-mock {
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 20px 50px rgba(31, 35, 41, 0.1);
}
.fs-mock-back {
  position: absolute;
  left: 0;
  top: 24px;
  width: 88%;
  height: 280px;
  display: flex;
  overflow: hidden;
  opacity: 0.85;
}
.fs-mock-sidebar {
  width: 56px;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: #f7f8fa;
  border-right: 1px solid #e5e6eb;
}
.fs-mock-sidebar i {
  display: block;
  height: 10px;
  border-radius: 4px;
  background: #e5e6eb;
}
.fs-mock-sidebar i:first-child {
  background: #3370ff;
  opacity: 0.3;
}
.fs-mock-main {
  flex: 1;
  padding: 20px;
}
.fs-mock-line {
  height: 8px;
  border-radius: 4px;
  background: #eef0f3;
  margin-bottom: 10px;
  width: 70%;
}
.fs-mock-line--lg { width: 90%; height: 12px; }
.fs-mock-line--sm { width: 45%; }

.fs-mock-front {
  position: absolute;
  left: 8%;
  top: 48px;
  width: 84%;
  padding: 24px 20px 16px;
  z-index: 2;
  animation: fs-float 6s ease-in-out infinite;
}
.fs-mock-q {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 700;
  color: #1f2329;
}
.fs-mock-apps {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.fs-app-ico {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.fs-app-ico--1 { background: linear-gradient(135deg, #3370ff, #5b9cff); }
.fs-app-ico--2 { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
.fs-app-ico--3 { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.fs-app-ico--4 { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.fs-app-ico--5 { background: linear-gradient(135deg, #10b981, #34d399); }
.fs-mock-tasks {
  margin-bottom: 14px;
}
.fs-mock-tasks label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #4e5969;
  margin-bottom: 6px;
}
.fs-mock-cmd {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 999px;
  background: #f7f8fa;
  border: 1px solid #e5e6eb;
}
.fs-mock-cmd-plus {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #86909c;
  border: 1px solid #e5e6eb;
}
.fs-mock-cmd-chip {
  padding: 4px 10px;
  border-radius: 999px;
  background: #fff;
  font-size: 11px;
  color: #4e5969;
  border: 1px solid #e5e6eb;
}
.fs-mock-float {
  position: absolute;
  padding: 12px 14px;
  z-index: 3;
  animation: fs-float 5s ease-in-out infinite;
}
.fs-mock-chart {
  right: 0;
  top: 0;
  width: 120px;
  animation-delay: 0.5s;
}
.fs-mock-chart strong {
  display: block;
  font-size: 11px;
  color: #86909c;
  margin-bottom: 8px;
}
.fs-mini-bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 40px;
}
.fs-mini-bars i {
  flex: 1;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, #5b9cff, #3370ff);
}
.fs-mock-report {
  right: 4%;
  bottom: 20px;
  animation-delay: 1s;
}
.fs-mock-report strong {
  display: block;
  font-size: 12px;
  color: #1f2329;
}
.fs-mock-report span {
  font-size: 10px;
  color: #86909c;
}

@keyframes fs-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.fs-hero-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin: 28px 0 20px;
}
.fs-hero-dots span {
  width: 8px;
  height: 4px;
  border-radius: 2px;
  background: #c9cdd4;
}
.fs-hero-dots .is-on {
  width: 24px;
  background: #3370ff;
}

/* Feature dock under hero */
.fs-feature-dock {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  max-width: 1100px;
  margin: 0 auto 8px;
  padding: 0 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 32px rgba(31, 35, 41, 0.06);
}
.fs-dock-item {
  flex: 1 1 120px;
  min-width: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 12px;
  border: 0;
  background: transparent;
  cursor: pointer;
  position: relative;
  transition: background 0.2s;
}
.fs-dock-item span:last-of-type {
  font-size: 13px;
  font-weight: 600;
  color: #4e5969;
}
.fs-dock-item.is-active {
  background: linear-gradient(180deg, rgba(51, 112, 255, 0.08), transparent);
}
.fs-dock-item.is-active span:last-of-type {
  color: #3370ff;
  font-weight: 700;
}
.fs-dock-item.is-active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: #3370ff;
}
.fs-dock-item em {
  position: absolute;
  top: 8px;
  right: 8px;
  font-style: normal;
  font-size: 9px;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: 4px;
  background: #3370ff;
  color: #fff;
}
.fs-dock-ico {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  color: #fff;
  flex-shrink: 0;
}
.fs-dock-ico svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}
.fs-dock-ico--1 { background: linear-gradient(135deg, #3370ff, #5b9cff); }
.fs-dock-ico--2 { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
.fs-dock-ico--3 { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.fs-dock-ico--4 { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.fs-dock-ico--5 { background: linear-gradient(135deg, #10b981, #34d399); }
.fs-dock-ico--6 { background: linear-gradient(135deg, #64748b, #94a3b8); }

/* ── Pill nav ── */
.fs-main {
  padding: clamp(48px, 6vw, 72px) 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.fs-pill-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
  padding: 6px;
  margin: 0 auto 40px;
  max-width: 520px;
  border-radius: 999px;
  background: #eef0f3;
}
.fs-pill-nav button,
.fs-pill-nav span {
  flex: 1 1 auto;
  min-width: 0;
  padding: 10px 18px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  font-size: 14px;
  font-weight: 600;
  color: #4e5969;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.fs-pill-nav button.is-active {
  background: #1f2329;
  color: #fff;
  box-shadow: 0 4px 12px rgba(31, 35, 41, 0.15);
}
.fs-sec-title {
  margin: 0 0 32px;
  text-align: center;
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 800;
  color: #1f2329;
  letter-spacing: -0.02em;
}
.fs-panel[hidden] {
  display: none !important;
}

/* ── Carousel cards ── */
.fs-carousel-wrap {
  position: relative;
  padding: 0 48px;
}
.fs-carousel {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 8px 4px 16px;
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.fs-carousel::-webkit-scrollbar { display: none; }
.fs-cap-card {
  flex: 0 0 min(260px, 78vw);
  scroll-snap-align: start;
  padding: 20px;
  border-radius: 20px;
  background: var(--fs-cap-bg, #eef0f3);
  min-height: 320px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s;
}
.fs-cap-card:hover {
  transform: translateY(-4px);
}
.fs-cap-card-hd {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.fs-cap-card-hd em {
  font-style: normal;
  font-size: 12px;
  font-weight: 600;
  color: #4e5969;
}
.fs-cap-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  color: #fff;
  flex-shrink: 0;
}
.fs-cap-logo svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}
.fs-cap-logo--1 { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
.fs-cap-logo--2 { background: linear-gradient(135deg, #3370ff, #5b9cff); }
.fs-cap-logo--3 { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.fs-cap-logo--4 { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.fs-cap-logo--5 { background: linear-gradient(135deg, #ec4899, #f472b6); }
.fs-cap-card h3 {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 800;
  color: #1f2329;
}
.fs-cap-ui {
  flex: 1;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 140px;
}

/* 验机卡片 */
.fs-cap-ui--inspect {
  flex-direction: row;
  align-items: center;
  gap: 16px;
}
.fs-cap-inspect-ring {
  position: relative;
  width: 72px;
  height: 72px;
  flex-shrink: 0;
}
.fs-cap-inspect-ring svg {
  width: 100%;
  height: 100%;
}
.fs-cap-inspect-ring strong {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #3370ff;
}
.fs-cap-inspect-list {
  margin: 0;
  padding: 0;
  list-style: none;
  flex: 1;
}
.fs-cap-inspect-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #4e5969;
  padding: 5px 0;
}
.fs-cap-inspect-list li i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #3370ff;
  flex-shrink: 0;
}

/* 越狱步骤 */
.fs-cap-ui--steps {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  padding: 20px 12px;
}
.fs-cap-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: #86909c;
  flex: 1;
  text-align: center;
}
.fs-cap-step span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #e5e6eb;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px #e5e6eb;
}
.fs-cap-step.is-done span {
  background: #3370ff;
  box-shadow: 0 0 0 1px #3370ff;
}
.fs-cap-step.is-active {
  color: #3370ff;
  font-weight: 700;
}
.fs-cap-step.is-active span {
  background: #3370ff;
  box-shadow: 0 0 0 3px rgba(51, 112, 255, 0.25);
}

/* 刷机进度 */
.fs-cap-ui--flash {
  gap: 10px;
}
.fs-cap-flash-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: #4e5969;
}
.fs-cap-flash-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  flex-shrink: 0;
}
.fs-cap-flash-dot.is-wait {
  background: #c9cdd4;
}
.fs-cap-flash-row > span {
  width: 52px;
  flex-shrink: 0;
}
.fs-cap-flash-bar {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: #eef0f3;
  overflow: hidden;
}
.fs-cap-flash-bar i {
  display: block;
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, #3370ff, #5b9cff);
}

/* 签名数据 */
.fs-cap-ui--data {
  align-items: flex-start;
  gap: 4px;
}
.fs-cap-data-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.fs-cap-data-head strong {
  font-size: 28px;
  font-weight: 800;
  color: #1f2329;
  line-height: 1;
}
.fs-cap-data-label {
  margin: 0 0 12px;
  font-size: 11px;
  color: #86909c;
}
.fs-cap-data-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  width: 100%;
  height: 48px;
}
.fs-cap-data-bars i {
  flex: 1;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, #5b9cff, #3370ff);
  min-height: 8px;
}

/* 云端统计 */
.fs-cap-ui--cloud {
  flex-direction: row;
  gap: 12px;
  align-items: stretch;
}
.fs-cap-cloud-stat {
  flex: 1;
  padding: 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.8);
  text-align: center;
}
.fs-cap-cloud-stat span {
  display: block;
  font-size: 11px;
  color: #86909c;
  margin-bottom: 4px;
}
.fs-cap-cloud-stat strong {
  font-size: 22px;
  font-weight: 800;
  color: #1f2329;
}
.fs-carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid #e5e6eb;
  background: #fff;
  font-size: 24px;
  line-height: 1;
  color: #4e5969;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  z-index: 2;
}
.fs-carousel-prev { left: 0; }
.fs-carousel-next { right: 0; }

/* ── Benefit cards ── */
.fs-benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.fs-benefit-card {
  position: relative;
  padding: 20px;
  border-radius: 20px;
  background: #fff;
  border: 1px solid #e5e6eb;
  min-height: 360px;
  transition: box-shadow 0.2s, transform 0.2s;
}
.fs-benefit-card:hover {
  box-shadow: 0 16px 40px rgba(31, 35, 41, 0.08);
  transform: translateY(-2px);
}
.fs-benefit-visual {
  height: 200px;
  border-radius: 14px;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}
.fs-benefit-visual--1 {
  background: linear-gradient(160deg, #dbeafe, #ede9fe);
}
.fs-benefit-visual--2 {
  background: linear-gradient(160deg, #ede9fe, #e0e7ff);
}
.fs-benefit-visual--3 {
  background: linear-gradient(160deg, #cffafe, #dbeafe);
}
.fs-benefit-orb {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 100px;
  border-radius: 40px 40px 0 0;
  background: linear-gradient(180deg, #93c5fd, #3370ff);
}
.fs-benefit-float-card {
  position: absolute;
  top: 20%;
  right: 15%;
  width: 60px;
  height: 48px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}
.fs-benefit-diamond {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: 80px;
  height: 80px;
  border-radius: 16px;
  background: linear-gradient(135deg, #7c3aed, #a78bfa);
  box-shadow: 0 12px 32px rgba(124, 58, 237, 0.3);
}
.fs-benefit-tags {
  position: absolute;
  inset: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: center;
  justify-content: center;
}
.fs-benefit-tags span {
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  font-size: 12px;
  font-weight: 700;
  color: #3370ff;
}
.fs-benefit-card h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 800;
  color: #1f2329;
}
.fs-benefit-card p {
  margin: 0;
  font-size: 13px;
  color: #86909c;
  line-height: 1.6;
}
.fs-benefit-arrow {
  position: absolute;
  bottom: 20px;
  right: 20px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid #e5e6eb;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #4e5969;
  text-decoration: none;
  font-size: 16px;
}
.fs-promo-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.fs-promo-banner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid #e5e6eb;
  text-decoration: none !important;
  color: inherit;
  transition: box-shadow 0.2s;
}
.fs-promo-banner:hover {
  box-shadow: 0 8px 24px rgba(31, 35, 41, 0.08);
}
.fs-promo-banner strong {
  display: block;
  font-size: 15px;
  color: #1f2329;
}
.fs-promo-banner span {
  font-size: 12px;
  color: #86909c;
}
.fs-promo-ico,
.fs-promo-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  flex-shrink: 0;
  color: #fff;
}
.fs-promo-ico svg,
.fs-promo-badge svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
}
.fs-promo-ico {
  background: linear-gradient(135deg, #3370ff, #5b9cff);
}
.fs-promo-badge {
  background: linear-gradient(135deg, #1e3a5f, #3370ff);
}

/* ── Product board ── */
.fs-product-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 24px;
  border-radius: 20px;
  background: linear-gradient(160deg, #eef4ff, #f7f8fa);
  border: 1px solid #e5e6eb;
}
.fs-product-col h4 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 700;
  color: #86909c;
}
.fs-product-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  border-radius: 14px;
  text-decoration: none !important;
  color: inherit;
  margin-bottom: 8px;
  border: 1px solid transparent;
  transition: background 0.2s, border-color 0.2s;
}
.fs-product-item:hover,
.fs-product-item.is-hot {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(51, 112, 255, 0.2);
}
.fs-product-item strong {
  display: block;
  font-size: 14px;
  color: #1f2329;
}
.fs-product-item strong em {
  font-style: normal;
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 4px;
  background: #3370ff;
  color: #fff;
  margin-left: 4px;
  vertical-align: 2px;
}
.fs-product-item span {
  font-size: 12px;
  color: #86909c;
}
.fs-product-ico {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  color: #fff;
  flex-shrink: 0;
}
.fs-product-ico svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
}
.fs-product-ico--1 { background: linear-gradient(135deg, #3370ff, #5b9cff); }
.fs-product-ico--2 { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.fs-product-ico--3 { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
.fs-product-ico--4 { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.fs-product-ico--5 { background: linear-gradient(135deg, #10b981, #34d399); }
.fs-product-ico--6 { background: linear-gradient(135deg, #64748b, #94a3b8); }

/* ── Service grid ── */
.fs-service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-template-rows: auto auto;
  gap: 16px;
}
.fs-service-card {
  position: relative;
  padding: 24px 20px;
  border-radius: 20px;
  overflow: hidden;
  min-height: 160px;
}
.fs-service-card--tall {
  grid-row: span 2;
  min-height: 340px;
}
.fs-service-card--blue { background: linear-gradient(160deg, #dbeafe, #e0f2fe); }
.fs-service-card--purple { background: linear-gradient(160deg, #ede9fe, #e0e7ff); }
.fs-service-card--cyan { background: linear-gradient(160deg, #cffafe, #d1fae5); }
.fs-service-card--green { background: linear-gradient(160deg, #d1fae5, #ecfdf5); }
.fs-service-card--pink { background: linear-gradient(160deg, #fce7f3, #ede9fe); }
.fs-service-card--orange { background: linear-gradient(160deg, #ffedd5, #fef3c7); }
.fs-service-ico {
  position: absolute;
  top: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.75);
  box-shadow: 0 4px 12px rgba(31, 35, 41, 0.08);
}
.fs-service-ico svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}
.fs-service-ico--clock { color: #3370ff; }
.fs-service-ico--ai { color: #7c3aed; }
.fs-service-ico--tech { color: #06b6d4; }
.fs-service-ico--help { color: #10b981; }
.fs-service-ico--consult { color: #ec4899; }
.fs-service-ico--migrate { color: #f59e0b; }
.fs-service-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  color: #1f2329;
}
.fs-service-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: #4e5969;
}
.fs-service-fig--person {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 120px;
  border-radius: 50px 50px 0 0;
  background: linear-gradient(180deg, #93c5fd 0%, #3370ff 100%);
}
.fs-service-fig--orbit {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 120px;
  border: 2px solid rgba(124, 58, 237, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.fs-service-fig--orbit strong {
  font-size: 32px;
  font-weight: 800;
  color: #3370ff;
}

.fs-cap-up {
  font-size: 13px;
  font-weight: 700;
  color: #10b981;
}

/* ── Platform support (图2 style) ── */
.fs-platform {
  position: relative;
  text-align: center;
  padding: clamp(56px, 7vw, 80px) 24px;
  overflow: hidden;
}
.fs-platform-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(51, 112, 255, 0.06), transparent 60%),
    linear-gradient(180deg, #fff 0%, #f5f9ff 100%);
  pointer-events: none;
}
.fs-platform-bg::before,
.fs-platform-bg::after {
  content: '';
  position: absolute;
  bottom: 0;
  width: 50%;
  height: 120px;
  border-top: 1px solid rgba(51, 112, 255, 0.08);
  transform-origin: bottom center;
}
.fs-platform-bg::before {
  left: 0;
  transform: perspective(400px) rotateX(50deg) skewX(-8deg);
}
.fs-platform-bg::after {
  right: 0;
  transform: perspective(400px) rotateX(50deg) skewX(8deg);
}
.fs-platform-kicker {
  position: relative;
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 700;
  color: #3370ff;
}
.fs-platform-title {
  position: relative;
  margin: 0 0 10px;
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 800;
  color: #1f2329;
  letter-spacing: -0.02em;
}
.fs-platform-sub {
  position: relative;
  margin: 0 0 40px;
  font-size: 14px;
  color: #86909c;
}
.fs-platform-arc {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: clamp(16px, 4vw, 48px);
  max-width: 640px;
  margin: 0 auto;
}
.fs-platform-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  border-radius: 20px;
  background: #fff;
  border: 1px solid #e5e6eb;
  box-shadow: 0 8px 24px rgba(31, 35, 41, 0.06);
  text-decoration: none !important;
  color: inherit;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.fs-platform-tile:hover {
  transform: translateY(-6px);
  border-color: rgba(51, 112, 255, 0.3);
  box-shadow: 0 16px 40px rgba(51, 112, 255, 0.12);
}
.fs-platform-tile--center {
  transform: translateY(-12px);
}
.fs-platform-tile--center:hover {
  transform: translateY(-18px);
}
.fs-platform-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: #f7f8fa;
}
.fs-platform-logo svg {
  width: 36px;
  height: 36px;
}
.fs-platform-logo--mac {
  color: #1f2329;
}
.fs-platform-tile strong {
  font-size: 14px;
  font-weight: 700;
  color: #1f2329;
}

/* ── CTA ── */
.fs-cta {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: clamp(64px, 8vw, 96px) 24px;
  background: linear-gradient(180deg, #e8f2ff 0%, #f0f6ff 40%, #f5f9ff 100%);
}
.fs-cta-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.fs-cta-mesh {
  position: absolute;
  inset: -50%;
  background:
    radial-gradient(ellipse 50% 40% at 20% 30%, rgba(91, 156, 255, 0.35), transparent 55%),
    radial-gradient(ellipse 45% 35% at 80% 60%, rgba(51, 112, 255, 0.28), transparent 50%),
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(147, 197, 253, 0.25), transparent 60%);
  animation: fs-cta-mesh 12s ease-in-out infinite alternate;
}
.fs-cta-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.5;
  animation: fs-cta-glow 8s ease-in-out infinite alternate;
}
.fs-cta-glow--1 {
  width: 320px;
  height: 320px;
  top: -80px;
  right: 10%;
  background: rgba(51, 112, 255, 0.35);
}
.fs-cta-glow--2 {
  width: 280px;
  height: 280px;
  bottom: -60px;
  left: 5%;
  background: rgba(91, 156, 255, 0.3);
  animation-delay: -4s;
}
.fs-cta-scene {
  position: absolute;
  right: clamp(24px, 8vw, 120px);
  top: 50%;
  transform: translateY(-50%);
  width: min(340px, 42vw);
  height: 220px;
}
.fs-cta-window {
  position: absolute;
  inset: 0;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  box-shadow: 0 24px 60px rgba(51, 112, 255, 0.15);
}
.fs-cta-block {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  backdrop-filter: blur(8px);
  box-shadow: 0 12px 32px rgba(31, 35, 41, 0.12);
  animation: fs-cta-float 6s ease-in-out infinite;
}
.fs-cta-block--brand {
  left: -12%;
  top: 18%;
  padding: 8px 16px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.9), rgba(34, 211, 238, 0.85));
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  animation-delay: 0s;
}
.fs-cta-block--ai {
  left: 28%;
  top: 8%;
  width: 72px;
  height: 72px;
  background: linear-gradient(145deg, #3370ff, #5b9cff);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  animation-delay: -1.5s;
}
.fs-cta-block--code {
  left: 52%;
  bottom: 12%;
  width: 52px;
  height: 52px;
  background: linear-gradient(145deg, #1e40af, #3370ff);
  color: #fff;
  animation-delay: -3s;
}
.fs-cta-block--code svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
}
.fs-cta-block--shield {
  right: -6%;
  top: 22%;
  width: 48px;
  height: 48px;
  background: linear-gradient(145deg, rgba(245, 158, 11, 0.9), rgba(251, 191, 36, 0.85));
  color: #fff;
  animation-delay: -2s;
}
.fs-cta-block--shield svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}
.fs-cta-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}
@keyframes fs-cta-mesh {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-3%, 2%) scale(1.05); }
}
@keyframes fs-cta-glow {
  0% { opacity: 0.35; transform: scale(1); }
  100% { opacity: 0.6; transform: scale(1.15); }
}
@keyframes fs-cta-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.fs-cta-tag {
  display: inline-block;
  margin: 0 auto 28px;
  padding: 8px 20px;
  border-radius: 999px;
  background: #1f2329;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
}
.fs-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  color: #1f2329;
}
.fs-cta h2 strong {
  color: #3370ff;
  font-weight: 800;
}
.fs-cta-sub {
  margin: 0 0 20px;
  font-size: 15px;
  color: #4e5969;
}
.fs-cta-checks {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 28px;
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
}
.fs-cta-checks li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #4e5969;
}
.fs-cta-check-ico {
  display: flex;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}
.fs-cta-check-ico svg {
  width: 18px;
  height: 18px;
  display: block;
}
.fs-cta-btns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.fs-cta-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 32px;
  border-radius: 999px;
  background: linear-gradient(90deg, #5b9cff, #3370ff);
  color: #fff !important;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none !important;
  box-shadow: 0 12px 32px rgba(51, 112, 255, 0.35);
}
.fs-cta-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 32px;
  border-radius: 999px;
  border: 1px solid #3370ff;
  color: #3370ff !important;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none !important;
  background: #fff;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .fs-hero-grid {
    grid-template-columns: 1fr;
  }
  .fs-hero-visual {
    min-height: 280px;
    max-width: 480px;
    margin: 0 auto;
  }
  .fs-cta-scene {
    opacity: 0.45;
    right: 0;
    width: min(280px, 50vw);
  }
  .fs-benefit-grid,
  .fs-product-board {
    grid-template-columns: 1fr;
  }
  .fs-service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .fs-service-card--tall {
    grid-row: span 1;
    min-height: 200px;
  }
  .fs-promo-row {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 768px) {
  .fs-hero {
    padding-top: 16px;
  }
  .fs-wrap {
    padding: 0 16px;
  }
  .fs-hero-copy h1 {
    font-size: clamp(26px, 7vw, 36px);
  }
  .fs-hero-link {
    display: block;
    margin-bottom: 16px;
    line-height: 1.5;
  }
  .fs-hero-visual {
    display: none !important;
    min-height: 0 !important;
    margin: 0 !important;
  }
  .fs-mock-back,
  .fs-mock-chart,
  .fs-mock-report,
  .fs-mock-front {
    display: none !important;
  }
  .fs-hero-dots {
    margin: 16px 0 12px;
  }
  .fs-feature-dock {
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    max-width: calc(100% - 32px);
    margin-bottom: 12px;
    padding: 4px 8px;
  }
  .fs-feature-dock::-webkit-scrollbar {
    display: none;
  }
  .fs-dock-item {
    flex: 0 0 auto;
    min-width: 88px;
    flex-direction: column;
    scroll-snap-align: start;
    padding: 12px 10px;
  }
  .fs-dock-item.is-active::after {
    left: 20%;
    right: 20%;
    top: auto;
    bottom: 0;
    width: auto;
    height: 3px;
    border-radius: 3px 3px 0 0;
  }
  .fs-pill-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    max-width: 100%;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .fs-pill-nav::-webkit-scrollbar {
    display: none;
  }
  .fs-pill-nav button {
    flex: 0 0 auto;
    white-space: nowrap;
    font-size: 13px;
    padding: 8px 14px;
  }
  .fs-main {
    padding: 40px 16px;
  }
  .fs-cta-scene {
    display: none;
  }
  .fs-platform-arc {
    flex-wrap: wrap;
    align-items: center;
  }
  .fs-platform-tile--center {
    transform: none;
  }
  .fs-platform-tile--center:hover {
    transform: translateY(-6px);
  }
  .fs-cta {
    padding: 56px 16px 64px;
  }
  .fs-cta-checks {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
}
@media (max-width: 640px) {
  .fs-service-grid {
    grid-template-columns: 1fr;
  }
  .fs-carousel-wrap {
    padding: 0 36px;
  }
  .fs-cap-card {
    flex: 0 0 min(240px, 85vw);
    min-height: 280px;
  }
}