:root {
  --bg: #f4f5f7;
  --bg-white: #ffffff;
  --dark: #0b1120;
  --dark-2: #121a2e;
  --dark-3: #1a2438;
  --line: rgba(15, 23, 42, 0.08);
  --line-dark: rgba(255, 255, 255, 0.1);
  --text: #0f172a;
  --text-dim: #475569;
  --text-mute: #64748b;
  --text-on-dark: #e2e8f0;
  --text-on-dark-dim: #94a3b8;
  --brand: #ff6b35;
  --brand-dark: #e85a2a;
  --brand-soft: rgba(255, 107, 53, 0.12);
  --blue: #3b82f6;
  --blue-soft: rgba(59, 130, 246, 0.12);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 64px rgba(15, 23, 42, 0.12);
  --shadow-hero: 0 40px 80px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.06) inset;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --nav-h: 64px;
  --max: 1140px;
  --screenshot-native: 1024px;
  --hero-max: 1024px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--blue);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

a:hover { color: #2563eb; }

button, .btn { font-family: inherit; }

.page-bg { display: none; }

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 200;
  padding: 8px 12px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  border-radius: 8px;
}

.skip-link:focus { top: 12px; }

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

/* ── Nav ── */
.site-nav {
  position: fixed;
  top: 16px;
  left: 50%;
  z-index: 100;
  transform: translateX(-50%);
  width: min(calc(var(--max) + 32px), calc(100% - 32px));
  height: var(--nav-h);
  padding: 0 8px 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line-dark);
  background: rgba(11, 17, 32, 0.82);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
}

.brand:hover { color: #fff; }

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  gap: 2px;
  margin-left: auto;
}

.nav-links a {
  color: var(--text-on-dark-dim);
  font-size: 13px;
  font-weight: 500;
  padding: 7px 12px;
  border-radius: 999px;
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

.nav-cta {
  margin-left: 4px;
  min-height: 40px !important;
  padding: 0 18px !important;
  font-size: 13px !important;
  border-radius: 999px !important;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 24px;
  border: 0;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
}

.btn-primary {
  color: #fff;
  background: var(--brand);
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.35);
}

.btn-primary:hover {
  background: var(--brand-dark);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
}

.btn-ghost {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.28);
}

.btn-ghost-dark {
  color: var(--text);
  background: var(--bg-white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.btn-ghost-dark:hover {
  border-color: rgba(15, 23, 42, 0.14);
  box-shadow: var(--shadow-md);
}

.btn-win::before {
  content: "";
  width: 15px;
  height: 15px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='black' d='M1 2.2 7.1 1.4v6.2H1zm7.9-.9L15 0.4v7.2H8.9zM1 8.6h6.1V15L1 14.1zm7.9.1H15V15.6L8.9 14.8z'/></svg>") center / contain no-repeat;
  mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='black' d='M1 2.2 7.1 1.4v6.2H1zm7.9-.9L15 0.4v7.2H8.9zM1 8.6h6.1V15L1 14.1zm7.9.1H15V15.6L8.9 14.8z'/></svg>") center / contain no-repeat;
}

.btn-light {
  color: var(--text);
  background: #fff;
  box-shadow: var(--shadow-md);
}

.btn-outline-light {
  color: #fff;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ── Hero ── */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 56px) 0 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(59, 130, 246, 0.18), transparent),
    radial-gradient(ellipse 50% 40% at 80% 20%, rgba(255, 107, 53, 0.12), transparent),
    linear-gradient(180deg, var(--dark) 0%, var(--dark-2) 55%, var(--bg) 55%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0 0 45%;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, black, transparent 80%);
  pointer-events: none;
}

.hero-copy-wrap {
  position: relative;
  z-index: 2;
  padding-bottom: 48px;
}

.hero-copy--center {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-on-dark-dim);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.kicker-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 8px rgba(52, 211, 153, 0.6);
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.035em;
  font-weight: 800;
  color: #fff;
}

.hero h1 span {
  display: block;
  margin-top: 8px;
  background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  margin: 0 0 32px;
  max-width: 32em;
  color: var(--text-on-dark-dim);
  font-size: 17px;
  line-height: 1.75;
}

.hero-copy--center .lead {
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.hero-copy--center .hero-actions {
  justify-content: center;
}

.hero-meta {
  color: var(--text-on-dark-dim);
  font-size: 13px;
}

.hero-meta a { color: rgba(255, 255, 255, 0.7); }
.hero-meta a:hover { color: #fff; }
.hero-meta strong { color: var(--text-on-dark); font-weight: 600; }

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 28px;
}

.hero-pill {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-on-dark);
  font-size: 13px;
  font-weight: 500;
}

.hero-pill strong {
  color: var(--brand);
  font-weight: 700;
  margin-right: 4px;
}

.hero-visual--full {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  padding: 0 20px 0;
  margin-top: -8px;
}

.hero-stage {
  position: relative;
  width: min(var(--hero-max), calc(100vw - 40px));
}

.hero-stage::before {
  content: "";
  position: absolute;
  inset: 20% 10% -20% 10%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.2), transparent 65%);
  filter: blur(40px);
  pointer-events: none;
}

.browser-frame--hero-full {
  position: relative;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: var(--dark-3);
  box-shadow: var(--shadow-hero);
  overflow: hidden;
}

.browser-frame--hero-full .browser-chrome {
  background: rgba(255, 255, 255, 0.04);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.browser-frame--hero-full .browser-url {
  background: rgba(0, 0, 0, 0.3);
  border-color: rgba(255, 255, 255, 0.08);
  color: var(--text-on-dark-dim);
}

.browser-frame--hero-full img {
  width: 100%;
  height: auto;
}

.browser-frame--hero-full .shot-caption {
  background: rgba(255, 255, 255, 0.04);
  border-top-color: rgba(255, 255, 255, 0.08);
  color: var(--text-on-dark-dim);
}

/* ── Trust strip ── */
.workflow {
  position: relative;
  z-index: 3;
  margin-top: -28px;
  padding-bottom: 8px;
}

.workflow-track {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 0;
  padding: 28px 32px;
  border-radius: var(--radius-xl);
  background: var(--bg-white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
}

.workflow-step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  min-width: 0;
}

.workflow-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand) 0%, #f97316 100%);
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
}

.workflow-body h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.workflow-body p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

.workflow-connector {
  width: 48px;
  align-self: center;
  height: 2px;
  margin: 0 12px;
  background: linear-gradient(90deg, var(--line), rgba(255, 107, 53, 0.35), var(--line));
}

/* ── Sections ── */
section {
  padding: 88px 0;
  scroll-margin-top: 96px;
}

.section-label {
  display: block;
  margin-bottom: 12px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.sec-head {
  max-width: 560px;
  margin-bottom: 48px;
}

.sec-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.sec-head h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 3vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.03em;
  font-weight: 800;
  color: var(--text);
}

.sec-head p {
  margin: 0;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.7;
}

/* ── Official (slim) ── */
#official {
  padding-top: 64px;
  padding-bottom: 0;
}

.official-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 32px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
  color: var(--text-on-dark);
}

.official-banner h2 {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 700;
}

.official-banner p {
  margin: 0;
  font-size: 14px;
  color: var(--text-on-dark-dim);
}

.official-url {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff !important;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.official-url:hover {
  background: rgba(255, 255, 255, 0.14);
  text-decoration: none;
}

.seo-copy {
  display: none;
}

/* ── Features ── */
#features {
  position: relative;
  padding-top: 80px;
  padding-bottom: 96px;
  background:
    radial-gradient(ellipse 55% 40% at 15% 20%, rgba(59, 130, 246, 0.06), transparent 60%),
    radial-gradient(ellipse 45% 35% at 85% 75%, rgba(255, 107, 53, 0.05), transparent 55%),
    linear-gradient(180deg, #eef2f7 0%, #f6f8fb 45%, #ffffff 100%);
  border-top: 1px solid var(--line);
}

#features::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(15, 23, 42, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: linear-gradient(180deg, black 0%, transparent 85%);
  pointer-events: none;
}

#features .wrap {
  position: relative;
  z-index: 1;
}

#features .section-label {
  color: var(--brand);
}

#features .sec-head h2 {
  color: var(--text);
}

#features .sec-head p {
  color: var(--text-dim);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature {
  --feat-accent: #3b82f6;
  --feat-glow: rgba(59, 130, 246, 0.18);
  --feat-bg: #151d2e;
  position: relative;
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 8px 4px;
  min-height: 168px;
  padding: 22px 20px 20px;
  border-radius: 18px;
  border: 1px solid rgba(15, 23, 42, 0.06);
  background: linear-gradient(155deg, #1a2438 0%, var(--feat-bg) 55%, #121a28 100%);
  box-shadow:
    0 4px 20px rgba(15, 23, 42, 0.08),
    0 1px 0 rgba(255, 255, 255, 0.06) inset;
  overflow: hidden;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.feature::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
  pointer-events: none;
}

.feature::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid var(--feat-accent);
  opacity: 0.45;
  pointer-events: none;
  transition: opacity 0.25s var(--ease);
}

.feature:hover {
  transform: translateY(-5px);
  box-shadow:
    0 20px 48px var(--feat-glow),
    0 8px 24px rgba(15, 23, 42, 0.12),
    0 1px 0 rgba(255, 255, 255, 0.08) inset;
}

.feature:hover::before {
  opacity: 0.85;
}

.feature--blue { --feat-accent: #3b82f6; --feat-glow: rgba(59, 130, 246, 0.25); }
.feature--orange { --feat-accent: #f97316; --feat-glow: rgba(249, 115, 22, 0.25); }
.feature--purple { --feat-accent: #a855f7; --feat-glow: rgba(168, 85, 247, 0.25); }
.feature--cyan { --feat-accent: #06b6d4; --feat-glow: rgba(6, 182, 212, 0.22); }
.feature--gold { --feat-accent: #eab308; --feat-glow: rgba(234, 179, 8, 0.22); }
.feature--green { --feat-accent: #22c55e; --feat-glow: rgba(34, 197, 94, 0.22); }

.feature-icon-wrap {
  position: relative;
  width: 72px;
  height: 72px;
  margin-top: 4px;
  display: grid;
  place-items: center;
  color: var(--feat-accent);
}

.feature-icon-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
  box-shadow:
    0 0 0 8px rgba(255, 255, 255, 0.03),
    0 0 0 16px rgba(255, 255, 255, 0.015);
}

.feature-icon-ring::before,
.feature-icon-ring::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.14);
}

.feature-icon-ring::before {
  inset: -10px;
}

.feature-icon-ring::after {
  inset: -18px;
  opacity: 0.5;
}

.feature-icon {
  position: relative;
  z-index: 1;
  width: 40px;
  height: 40px;
  filter: drop-shadow(0 0 8px var(--feat-glow));
}

.feature-body {
  min-width: 0;
  padding-right: 28px;
}

.feature h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
}

.feature-points {
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-points li {
  position: relative;
  padding-left: 0;
  color: rgba(226, 232, 240, 0.72);
  font-size: 12.5px;
  line-height: 1.65;
}

.feature-points li + li {
  margin-top: 2px;
}

.feature-arrow {
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--feat-accent);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.feature-arrow:hover {
  color: var(--feat-accent);
  background: rgba(255, 255, 255, 0.12);
  transform: translateX(3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* ── Showcase ── */
.showcase-section {
  background:
    radial-gradient(ellipse 50% 40% at 80% 10%, rgba(255, 107, 53, 0.04), transparent),
    linear-gradient(180deg, #ffffff 0%, #f6f8fb 100%);
  border-top: 1px solid var(--line);
}

.showcase-panel {
  --panel-accent: #3b82f6;
  --panel-glow: rgba(59, 130, 246, 0.2);
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: 32px;
  align-items: center;
  margin-bottom: 28px;
  padding: 28px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(15, 23, 42, 0.06);
  background: linear-gradient(155deg, #1a2438 0%, #121a28 100%);
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.12);
  position: relative;
  overflow: hidden;
}

.showcase-panel:last-child {
  margin-bottom: 0;
}

.showcase-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid var(--panel-accent);
  opacity: 0.5;
  pointer-events: none;
}

.showcase-panel--blue { --panel-accent: #3b82f6; --panel-glow: rgba(59, 130, 246, 0.22); }
.showcase-panel--orange { --panel-accent: #f97316; --panel-glow: rgba(249, 115, 22, 0.22); }

.showcase-panel-copy {
  position: relative;
  z-index: 1;
  padding: 8px 8px 8px 4px;
}

.showcase-panel-tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: var(--panel-accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.showcase-panel-copy h3 {
  margin: 0 0 12px;
  font-size: clamp(22px, 2.4vw, 26px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.25;
  color: #fff;
}

.showcase-panel-copy p {
  margin: 0 0 16px;
  color: rgba(226, 232, 240, 0.75);
  font-size: 14px;
  line-height: 1.75;
}

.showcase-panel-points {
  margin: 0;
  padding: 0;
  list-style: none;
}

.showcase-panel-points li {
  position: relative;
  padding-left: 16px;
  color: rgba(226, 232, 240, 0.65);
  font-size: 13px;
  line-height: 1.6;
}

.showcase-panel-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--panel-accent);
  box-shadow: 0 0 8px var(--panel-glow);
}

.showcase-panel-points li + li {
  margin-top: 6px;
}

.showcase-panel-shot {
  position: relative;
  z-index: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
  background: #0a0f18;
}

.showcase-panel-shot img {
  width: 100%;
  height: auto;
  max-width: none;
  display: block;
}

.browser-frame {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--bg-white);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.browser-frame:not(.browser-frame--hero-full) {
  max-width: var(--screenshot-native);
  margin-left: auto;
  margin-right: auto;
}

.browser-chrome {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  background: #f8fafc;
}

.browser-dots { display: flex; gap: 6px; }

.browser-dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.browser-dots i:nth-child(1) { background: #fca5a5; }
.browser-dots i:nth-child(2) { background: #fcd34d; }
.browser-dots i:nth-child(3) { background: #86efac; }

.browser-url {
  flex: 1;
  padding: 5px 12px;
  border-radius: 7px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--text-mute);
  font-size: 11px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.browser-frame img,
.shot-frame img {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 auto;
}

.browser-frame img:not([srcset]),
.shot-frame img:not([srcset]) {
  max-width: var(--screenshot-native);
}

.shot-caption {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: #f8fafc;
  color: var(--text-mute);
  font-size: 11px;
  text-align: center;
}

.shot-frame {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--bg-white);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.shot-frame--desktop {
  margin: 48px auto 0;
  max-width: var(--screenshot-native);
}

/* ── Scenes ── */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.scene-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-white);
  border: 1px solid var(--line);
  transition: box-shadow 0.25s var(--ease);
}

.scene-card:hover { box-shadow: var(--shadow-md); }

.scene-card::before {
  content: attr(data-step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin-bottom: 16px;
  border-radius: 8px;
  background: var(--dark);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
}

.scene-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
}

.scene-card p,
.scene-card li {
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.65;
}

.scene-card ol {
  margin: 14px 0 0;
  padding-left: 18px;
}

.scene-card li { margin-bottom: 6px; }

/* ── Download ── */
#download { background: var(--bg); }

.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.download-card {
  padding: 32px;
  border-radius: var(--radius-xl);
  background: var(--bg-white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.25s, transform 0.25s;
}

.download-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.download-card.is-web {
  border-top: 3px solid var(--blue);
}

.download-card.is-win {
  border-top: 3px solid var(--brand);
}

.download-card .tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.download-card.is-web .tag {
  background: var(--blue-soft);
  color: var(--blue);
}

.download-card.is-win .tag {
  background: var(--brand-soft);
  color: var(--brand);
}

.download-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.download-card .lead {
  margin: 0 0 24px;
  color: var(--text-dim);
  font-size: 14px;
}

.dl-note {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-mute);
}

.req-list {
  margin: 24px 0 0;
  padding: 16px 16px 16px 32px;
  border-radius: var(--radius);
  background: var(--bg);
  font-size: 13px;
  color: var(--text-dim);
}

.req-list li { margin-bottom: 6px; }

/* ── FAQ ── */
.faq-section {
  background:
    radial-gradient(ellipse 50% 40% at 10% 0%, rgba(59, 130, 246, 0.05), transparent),
    linear-gradient(180deg, #f6f8fb 0%, #ffffff 100%);
  border-top: 1px solid var(--line);
}

.faq-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: start;
}

.faq-aside {
  position: sticky;
  top: 96px;
}

.faq-aside-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, var(--dark) 0%, var(--dark-2) 100%);
  color: var(--text-on-dark);
  box-shadow: var(--shadow-md);
}

.faq-aside-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
}

.faq-aside-card p {
  margin: 0 0 18px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-on-dark-dim);
}

.faq-aside-btn {
  width: 100%;
  min-height: 42px !important;
  margin-bottom: 12px;
  font-size: 14px !important;
}

.faq-aside-link {
  display: block;
  font-size: 12px;
  color: var(--text-on-dark-dim) !important;
  word-break: break-all;
}

.faq-aside-link:hover {
  color: #fff !important;
}

.faq-nav {
  display: grid;
  gap: 6px;
  margin-top: 16px;
  padding: 14px;
  border-radius: var(--radius);
  background: var(--bg-white);
  border: 1px solid var(--line);
}

.faq-nav a {
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}

.faq-nav a:hover {
  color: var(--brand);
  background: var(--brand-soft);
  text-decoration: none;
}

.faq-groups {
  display: grid;
  gap: 28px;
}

.faq-group-title {
  margin: 0 0 12px;
  padding-left: 12px;
  border-left: 3px solid var(--brand);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-item {
  border-radius: var(--radius);
  background: var(--bg-white);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.faq-item[open] {
  border-color: rgba(255, 107, 53, 0.28);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  transition: color 0.2s var(--ease);
}

.faq-item summary span {
  flex: 1;
  min-width: 0;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary:hover {
  color: var(--brand);
}

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--line);
  position: relative;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.25s var(--ease);
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  border-radius: 1px;
  background: var(--text-dim);
  transform: translate(-50%, -50%);
  transition: background 0.2s var(--ease);
}

.faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item[open] .faq-icon {
  background: var(--brand-soft);
  border-color: rgba(255, 107, 53, 0.25);
  transform: rotate(45deg);
}

.faq-item[open] .faq-icon::before,
.faq-item[open] .faq-icon::after {
  background: var(--brand);
}

.faq-answer {
  padding: 0 20px 18px;
  border-top: 1px solid var(--line);
  animation: faq-open 0.25s var(--ease);
}

@keyframes faq-open {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.faq-answer p {
  margin: 14px 0 0;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.75;
}

/* ── CTA ── */
.cta-band {
  padding: 80px 0;
  background: var(--dark);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 0% 50%, rgba(255, 107, 53, 0.15), transparent),
    radial-gradient(ellipse 50% 60% at 100% 50%, rgba(59, 130, 246, 0.12), transparent);
  pointer-events: none;
}

.cta-band-glow { display: none; }

.cta-band-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-band-kicker {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand);
  letter-spacing: 0.08em;
}

.cta-band-copy h2 {
  margin: 0 0 10px;
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.cta-band-copy p {
  margin: 0;
  color: var(--text-on-dark-dim);
  font-size: 15px;
  max-width: 480px;
}

.cta-band-actions {
  display: flex;
  flex-shrink: 0;
  gap: 12px;
  flex-wrap: wrap;
}

/* ── Footer ── */
.site-footer {
  padding: 56px 0 32px;
  background: var(--dark);
  color: var(--text-on-dark-dim);
  font-size: 13px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 10px;
}

.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.site-footer a { color: var(--text-on-dark-dim); }
.site-footer a:hover { color: #fff; }

.footer-map {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 8px;
}

.legal {
  text-align: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .site-nav {
    top: 0;
    left: 0;
    transform: none;
    width: 100%;
    border-radius: 0;
    border-left: 0;
    border-right: 0;
    border-top: 0;
  }

  .nav-links { display: none; }

  .hero {
    padding-top: calc(var(--nav-h) + 32px);
    background: linear-gradient(180deg, var(--dark) 0%, var(--dark-2) 50%, var(--bg) 50%);
  }

  .workflow-track {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 24px 20px;
  }

  .workflow-connector {
    width: 2px;
    height: 24px;
    margin: 0 auto;
    background: linear-gradient(180deg, var(--line), rgba(255, 107, 53, 0.35), var(--line));
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature {
    grid-template-columns: 72px 1fr;
    min-height: auto;
  }

  .scene-grid,
  .access-grid,
  .footer-grid,
  .showcase-panel {
    grid-template-columns: 1fr;
    padding: 22px 18px;
  }

  .faq-layout {
    grid-template-columns: 1fr;
  }

  .faq-aside {
    position: static;
  }

  .faq-nav {
    display: none;
  }

  .cta-band-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  section { padding: 64px 0; }

  .official-banner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .feature, .scene-card, .download-card { transition: none; }
}