:root {
  --bg: #071218;
  --bg-2: #0d1c23;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.1);
  --line: rgba(180, 241, 245, 0.18);
  --text: #f3fbfc;
  --muted: #b7d0d6;
  --soft: #8db3bb;
  --brand: #8df1ef;
  --brand-2: #c7fbff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --radius-sm: 16px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(120, 243, 242, 0.16), transparent 28%),
    radial-gradient(circle at 80% 8%, rgba(124, 212, 255, 0.16), transparent 22%),
    linear-gradient(180deg, #061117 0%, #09161d 35%, #071218 100%);
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: rgba(7, 18, 24, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 78px;
}

/* keep same visual order across pages even if HTML order differs */
.topbar-inner > .brand { order: 1; }
.topbar-inner > .nav { order: 2; }
.topbar-inner > .ssfuture-link { order: 3; }
.topbar-inner > .actions { order: 4; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(141, 241, 239, 0.22), rgba(255, 255, 255, 0.08));
  border: 1px solid rgba(141, 241, 239, 0.22);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.12);
}

.brand-mark span {
  color: var(--brand);
  font-size: 18px;
  font-weight: 900;
}

.brand small {
  display: block;
  color: var(--soft);
  font-weight: 600;
  letter-spacing: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.nav a {
  color: var(--muted);
  font-size: 15px;
}

.nav a:hover {
  color: var(--text);
}

.actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 750;
  border: 1px solid transparent;
  transition: 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #062028;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 12px 34px rgba(141, 241, 239, 0.24);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.08);
}

.btn-ghost {
  color: var(--muted);
  background: transparent;
  border-color: rgba(255, 255, 255, 0.08);
}

.hero {
  padding: 74px 0 46px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  gap: 36px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(141, 241, 239, 0.09);
  color: var(--brand-2);
  border: 1px solid rgba(141, 241, 239, 0.16);
  font-size: 14px;
  font-weight: 700;
}

.hero h1,
.page-hero h1 {
  margin: 18px 0 18px;
  font-size: clamp(40px, 6vw, 70px);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.hero p,
.page-hero p {
  margin: 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  max-width: 680px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.hero-note {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.stat,
.card,
.panel,
.photo-card,
.price-card,
.timeline-item,
.faq-item,
.info-box {
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.stat {
  padding: 18px 18px 16px;
}

.stat strong {
  display: block;
  font-size: 26px;
  color: var(--brand-2);
  letter-spacing: -0.03em;
}

.stat span {
  display: block;
  color: var(--soft);
  font-size: 14px;
  margin-top: 6px;
}

.hero-visual {
  position: relative;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: -12px;
  border-radius: 36px;
  background: radial-gradient(circle at top, rgba(141, 241, 239, 0.22), transparent 50%);
  filter: blur(18px);
  z-index: -1;
}

.hero-visual img,
.visual-image,
.photo-card img {
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: var(--shadow);
}

.section {
  padding: 46px 0;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  max-width: 580px;
}

.grid-3,
.grid-4,
.feature-grid,
.photo-grid,
.price-grid,
.faq-grid,
.link-grid,
.channel-grid,
.steps,
.detail-grid {
  display: grid;
  gap: 20px;
}

.grid-3,
.feature-grid,
.photo-grid,
.price-grid,
.faq-grid,
.detail-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4,
.channel-grid,
.link-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.steps {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.panel,
.timeline-item,
.info-box {
  padding: 24px;
}

.card h3,
.panel h3,
.photo-card h3,
.price-card h3,
.timeline-item h3,
.info-box h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.skill-grid {
  align-items: stretch;
}

.skill-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.skill-head {
  display: flex;
  gap: 14px;
  align-items: center;
}

.skill-icon {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(141,241,239,0.2), rgba(255,255,255,0.06));
  border: 1px solid rgba(141,241,239,0.2);
  font-size: 22px;
}

.skill-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.example-box {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(141,241,239,0.12);
  border-radius: 16px;
  padding: 14px 16px;
}

.example-title {
  font-size: 13px;
  color: var(--brand-2);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
  font-weight: 800;
}

.example-output {
  margin: 0;
  white-space: pre-wrap;
  font-family: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
  color: #d7f4f6;
  line-height: 1.5;
}

.card p,
.panel p,
.photo-card p,
.price-card p,
.timeline-item p,
.info-box p,
.faq-item p,
li {
  color: var(--muted);
}

.kicker {
  color: var(--brand-2);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 10px;
}

.icon-chip {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(141,241,239,0.2), rgba(255,255,255,0.06));
  border: 1px solid rgba(141,241,239,0.18);
  color: var(--brand);
  font-weight: 900;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
}

.list,
.clean-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.list li,
.clean-list li {
  position: relative;
  padding-left: 28px;
  margin-top: 12px;
}

.list li::before,
.clean-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), #fff);
  box-shadow: 0 0 0 4px rgba(141,241,239,0.12);
}

.photo-card {
  overflow: hidden;
}

.photo-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 0;
  border: 0;
  box-shadow: none;
}

.photo-card .content {
  padding: 24px;
}

.inline-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.tag {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.channel-grid .card,
.link-grid .card {
  min-height: 100%;
}

.price-card {
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.price-card.featured {
  border-color: rgba(141,241,239,0.38);
  background: linear-gradient(180deg, rgba(141,241,239,0.12), rgba(255,255,255,0.05));
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(141,241,239,0.12);
  color: var(--brand-2);
  border: 1px solid rgba(141,241,239,0.22);
  font-size: 13px;
  font-weight: 800;
}

.price {
  display: flex;
  align-items: end;
  gap: 10px;
  margin: 16px 0 8px;
}

.price strong {
  font-size: 52px;
  line-height: 1;
  letter-spacing: -0.04em;
}

.price span {
  color: var(--soft);
}

.note {
  color: var(--soft);
  font-size: 14px;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  align-items: start;
  gap: 18px;
}

.timeline-num {
  width: 64px;
  height: 64px;
  border-radius: 22px;
  display: grid;
  place-items: center;
  background: rgba(141,241,239,0.14);
  border: 1px solid rgba(141,241,239,0.18);
  color: var(--brand-2);
  font-size: 22px;
  font-weight: 900;
}

.faq-item {
  padding: 22px;
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.cta-band {
  padding: 30px;
  border-radius: 30px;
  background: linear-gradient(135deg, rgba(141,241,239,0.16), rgba(255,255,255,0.05));
  border: 1px solid rgba(141,241,239,0.18);
  box-shadow: var(--shadow);
}

.cta-band h2 {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 46px);
}

.cta-band p {
  margin: 0;
  color: var(--muted);
  max-width: 700px;
}

.footer {
  padding: 34px 0 60px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer p,
.footer li,
.footer a {
  color: var(--soft);
}

.footer h4 {
  margin: 0 0 12px;
  font-size: 16px;
}

.footer-note {
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
}

.footer-note p {
  margin: 0;
  color: var(--soft);
  font-size: 13px;
}

.page-hero {
  padding: 72px 0 30px;
}

.page-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 26px;
  align-items: center;
}

.lead-panel {
  padding: 26px;
}

.small-muted {
  color: var(--soft);
  font-size: 14px;
}

.muted {
  color: var(--muted);
}

.table-wrap {
  overflow-x: auto;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.pill-success {
  background: rgba(141, 241, 239, 0.16);
  border-color: rgba(141, 241, 239, 0.3);
  color: var(--brand);
}

.pill-warn {
  background: rgba(255, 162, 67, 0.18);
  border-color: rgba(255, 162, 67, 0.3);
  color: #ffd7a0;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  background: rgba(10, 24, 32, 0.5);
  border-radius: 18px;
  overflow: hidden;
}

.compare-table th,
.compare-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.compare-table th {
  font-size: 13px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--soft);
  background: rgba(255, 255, 255, 0.04);
}

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

.compare-table td strong {
  color: var(--text);
}

.compare-table .muted {
  color: var(--muted);
}

.compare-hint {
  margin-top: 14px;
  color: var(--soft);
  font-size: 0.95rem;
}

.form-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  gap: 16px;
}

.form-row,
.info-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-label {
  display: block;
  font-size: 14px;
  color: var(--soft);
  margin-bottom: 6px;
}

.form-input,
.form-select,
input[type="file"],
textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(9, 22, 29, 0.9);
  color: var(--text);
  padding: 12px 14px;
  font-size: 15px;
}

textarea {
  min-height: 120px;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.form-help {
  font-size: 13px;
  color: var(--soft);
}

.notice {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
}

.notice-success {
  border-color: rgba(141, 241, 239, 0.5);
  color: var(--brand-2);
}

.notice-error {
  border-color: rgba(255, 107, 107, 0.6);
  color: #ffd0d0;
}

.qr-box {
  width: 220px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.2);
}

.qr-box img {
  display: block;
  width: 100%;
}

@media (max-width: 760px) {
  .compare-table th:nth-child(3),
  .compare-table td:nth-child(3) {
    display: none;
  }
}

@media (max-width: 560px) {
  .compare-table th,
  .compare-table td {
    padding: 12px;
  }
}

.usecase-grid {
  display: grid;
  gap: 18px;
}

.usecase-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 22px;
}

.usecase-head h3 {
  margin: 0 0 8px;
  font-size: 22px;
}

.usecase-head p {
  margin: 0 0 16px;
  color: var(--muted);
}

.usecase-meta {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.usecase-meta h4 {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--soft);
}

.usecase-meta-wide {
  grid-column: 1 / -1;
}

.usecase-examples {
  display: grid;
  gap: 12px;
}

.usecase-examples .example-item {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
}

.usecase-examples .example-item::before {
  display: none;
}

.usecase-examples .example-title {
  font-weight: 600;
  margin-bottom: 6px;
}

.example-sub {
  font-size: 13px;
  color: var(--soft);
  margin-top: 4px;
}

.example-sub span {
  display: inline-block;
  min-width: 58px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
  color: var(--muted);
}

.prompt-list {
  display: grid;
  gap: 8px;
}

.prompt-chip {
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  font-size: 13px;
  color: var(--text);
}

.usecase-outcome {
  margin-top: 16px;
  border-left: 2px solid rgba(141,241,239,0.6);
  padding-left: 12px;
  color: var(--soft);
  font-size: 14px;
}

@media (max-width: 980px) {
  .usecase-meta {
    grid-template-columns: 1fr;
  }
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 24px;
}

.filter-chip {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
  transition: 0.2s ease;
}

.filter-chip:hover,
.filter-chip.active {
  border-color: rgba(141, 241, 239, 0.8);
  background: rgba(141, 241, 239, 0.12);
  color: var(--brand-2);
}

.usecase-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.usecase-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(141,241,239,0.12);
  border: 1px solid rgba(141,241,239,0.3);
  font-size: 22px;
}

.usecase-tag {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--soft);
  margin-bottom: 6px;
}

.usecase-cta {
  margin-top: 16px;
}

@media (max-width: 760px) {
  .usecase-head {
    flex-direction: column;
  }
}

/* compact header + SSFuture */
.topbar {
  padding: 10px 0;
}

.topbar-inner {
  gap: 14px;
  min-height: auto;
}

.brand {
  gap: 10px;
}

.brand-mark {
  width: 40px;
  height: 40px;
}

.brand small {
  display: block;
  font-size: 0.72rem;
  line-height: 1.2;
  color: var(--soft);
}

.nav {
  gap: 14px;
}

.nav a {
  padding: 6px 0;
}

.actions {
  gap: 8px;
}

.topbar .btn {
  min-height: 44px;
  padding: 0 14px;
}

.ssfuture-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
  transition: 0.2s ease;
}

.ssfuture-link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-1px);
}

@media (max-width: 1080px) {
  .hero-grid,
  .split,
  .page-hero-grid,
  .footer-top,
  .detail-grid,
  .grid-3,
  .feature-grid,
  .photo-grid,
  .price-grid,
  .faq-grid,
  .grid-4,
  .channel-grid,
  .link-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .section-head {
    align-items: start;
    flex-direction: column;
  }

  .hero-note {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 980px) {
  .topbar {
    padding: 8px 0;
  }

  .topbar-inner {
    gap: 10px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
  }

  .topbar .btn {
    min-height: 42px;
    padding: 0 12px;
  }

  .ssfuture-link {
    padding: 7px 11px;
  }
}

@media (max-width: 760px) {
  .topbar {
    padding: 6px 0;
  }

  .topbar-inner {
    min-height: auto;
    padding: 6px 0;
    display: grid !important;
    grid-template-columns: 1fr auto !important;
    grid-template-areas:
      "brand ssfuture"
      "nav nav"
      "actions actions";
    align-items: center;
    gap: 8px;
  }

  .brand {
    grid-area: brand;
    gap: 10px;
    min-width: 0;
  }

  .brand > span:last-child {
    white-space: nowrap;
    font-size: 15px;
    line-height: 1.1;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 12px;
  }

  .brand small {
    display: none;
  }

  .nav {
    grid-area: nav;
    width: 100%;
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
  }

  .nav a {
    flex: 0 0 auto;
    font-size: 13px;
    line-height: 1;
    padding: 8px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    white-space: nowrap;
  }

  .ssfuture-link {
    grid-area: ssfuture !important;
    justify-self: end;
    align-self: center;
    padding: 6px 10px;
    font-size: 12px;
  }

  .actions {
    grid-area: actions;
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .actions .btn {
    width: 100%;
    min-height: 42px;
    padding: 0 14px;
    font-size: 14px;
  }

  .hero,
  .page-hero {
    padding: 34px 0 20px;
  }

  .hero h1,
  .page-hero h1 {
    margin: 14px 0 12px;
    font-size: clamp(30px, 9vw, 40px);
    line-height: 1.1;
    letter-spacing: -0.025em;
  }

  .hero p,
  .page-hero p {
    font-size: 15px;
    line-height: 1.72;
  }

  .eyebrow {
    min-height: 32px;
    padding: 0 10px;
    gap: 6px;
    font-size: 12px;
  }

  .hero-cta {
    width: 100%;
    margin-top: 18px;
    gap: 10px;
  }

  .hero-cta .btn {
    flex: 1 1 150px;
    min-height: 42px;
    padding: 0 14px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .timeline-num {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    font-size: 18px;
  }

  .card,
  .panel,
  .timeline-item,
  .info-box,
  .price-card,
  .faq-item,
  .lead-panel {
    padding: 18px;
  }

  .section {
    padding: 34px 0;
  }

  .price strong {
    font-size: clamp(36px, 10vw, 44px);
  }

  .cta-band {
    padding: 22px;
    border-radius: 20px;
  }

  .container {
    width: min(calc(100% - 24px), var(--max));
  }
}

.demo-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 26px;
  align-items: start;
}

.demo-panel {
  background: rgba(10, 22, 30, 0.7);
  border: 1px solid rgba(141, 241, 239, 0.18);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.35);
}

.demo-textarea {
  min-height: 140px;
}

.prompt-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.prompt-chip {
  border: 1px solid rgba(141, 241, 239, 0.25);
  background: rgba(141, 241, 239, 0.08);
  color: var(--brand-2);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
}

.demo-limit {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color: var(--text);
}

.demo-preview {
  display: grid;
  gap: 16px;
}

.demo-preview-card {
  overflow: hidden;
}

.demo-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.demo-image {
  width: 100%;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: var(--shadow);
}

.demo-placeholder {
  border: 1px dashed rgba(255,255,255,0.16);
  border-radius: 18px;
  padding: 26px;
  color: var(--muted);
  text-align: center;
}

.demo-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.demo-thumb {
  width: 100%;
  height: 110px;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.12);
}

.demo-alert {
  padding: 12px 14px;
  border-radius: 12px;
}

.demo-alert-error {
  border: 1px solid rgba(255,107,107,0.5);
  background: rgba(255, 107, 107, 0.08);
  color: #ffd0d0;
}

.demo-alert-success {
  border: 1px solid rgba(141,241,239,0.5);
  background: rgba(141, 241, 239, 0.08);
  color: var(--brand-2);
}

.demo-loading {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
}

.demo-loading.active {
  display: flex;
}

.demo-spinner {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: var(--brand);
  animation: demo-spin 0.9s linear infinite;
}

@keyframes demo-spin {
  to {
    transform: rotate(360deg);
  }
}

.demo-hero-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  padding: 20px;
}

.gmail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.gmail-card {
  display: grid;
  gap: 14px;
}

.gmail-tag {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  background: rgba(255,255,255,0.08);
  color: var(--muted);
}

.gmail-tag.tag-important {
  background: rgba(255,107,107,0.18);
  color: #ffd0d0;
}

.gmail-tag.tag-reply {
  background: rgba(141,241,239,0.2);
  color: var(--brand-2);
}

.gmail-block {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  padding: 12px 14px;
}

.gmail-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--brand-2);
  margin-bottom: 6px;
}

@media (max-width: 980px) {
  .gmail-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1080px) {
  .demo-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .demo-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .demo-thumb {
    height: 96px;
  }
}