:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --bg-elevated: #ffffff;
  --text: #0b1220;
  --muted: #5b6577;
  --line: rgba(15, 23, 42, 0.08);
  --brand: #0071e3;
  --brand-dark: #0058b0;
  --brand-soft: rgba(0, 113, 227, 0.1);
  --soft: #eef2f7;
  --radius: 16px;
  --shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 30px 80px rgba(15, 23, 42, 0.12);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.4, 0.64, 1);
  --nav-h: 72px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html {
  overflow-x: clip;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-width: 0;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(16px, 3.5vw, 40px);
  position: relative;
  z-index: 1;
  box-sizing: border-box;
}

/* Ambient orbs — nonlinear drift */
.bg-orbs {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.55;
  will-change: transform;
}
.orb-a {
  width: 420px; height: 420px;
  left: -8%; top: 8%;
  background: radial-gradient(circle, rgba(0,113,227,0.35), transparent 70%);
  animation: driftA 18s var(--ease-out) infinite alternate;
}
.orb-b {
  width: 360px; height: 360px;
  right: -6%; top: 28%;
  background: radial-gradient(circle, rgba(99,102,241,0.28), transparent 70%);
  animation: driftB 22s var(--ease-out) infinite alternate;
}
.orb-c {
  width: 480px; height: 480px;
  left: 30%; bottom: -10%;
  background: radial-gradient(circle, rgba(14,165,233,0.18), transparent 70%);
  animation: driftC 26s var(--ease-out) infinite alternate;
}
@keyframes driftA {
  0% { transform: translate3d(0,0,0) scale(1); }
  100% { transform: translate3d(60px, 40px, 0) scale(1.12); }
}
@keyframes driftB {
  0% { transform: translate3d(0,0,0) scale(1); }
  100% { transform: translate3d(-50px, 70px, 0) scale(0.92); }
}
@keyframes driftC {
  0% { transform: translate3d(0,0,0) rotate(0deg); }
  100% { transform: translate3d(40px, -50px, 0) rotate(12deg); }
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: var(--nav-h);
  padding: 14px 0;
  margin: 0 -8px;
  padding-left: 8px;
  padding-right: 8px;
  border-bottom: 1px solid transparent;
  transition: background 0.4s var(--ease-out), border-color 0.4s var(--ease-out), backdrop-filter 0.4s var(--ease-out);
}
.nav.scrolled {
  background: rgba(247, 248, 251, 0.78);
  backdrop-filter: saturate(1.4) blur(16px);
  -webkit-backdrop-filter: saturate(1.4) blur(16px);
  border-bottom-color: var(--line);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  text-decoration: none;
}
.logo img { width: 34px; height: 34px; border-radius: 9px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav-links a { color: var(--muted); text-decoration: none; transition: color 0.2s ease; }
.nav-links a:hover { color: var(--text); }
.nav-links a.is-active {
  color: var(--text);
  font-weight: 700;
}
.nav-links a.is-active:not(.btn)::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 2px;
  border-radius: 2px;
  background: var(--brand);
}
.lang-btn {
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  color: var(--text);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.35s var(--ease-spring), background 0.2s ease;
}
.lang-btn:hover { background: var(--soft); transform: translateY(-1px); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.4s var(--ease-spring), box-shadow 0.35s var(--ease-out), background 0.2s ease, border-color 0.2s ease;
}
.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.1);
}
.btn:active { transform: translateY(0) scale(0.98); }
.btn.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  box-shadow: 0 10px 28px rgba(0, 113, 227, 0.28);
}
.btn.primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); }
.btn.ghost { background: transparent; }
.btn-sm { padding: 8px 14px; font-size: 13px; }
.nav-cta { margin-left: 4px; }
/* 导航里 .nav-links a 的 color 会盖过 .btn.primary，强制 CTA 白字 */
.nav-links a.btn.primary,
.nav-links a.nav-cta {
  color: #fff !important;
  text-decoration: none;
}
.nav-links a.btn.primary:hover,
.nav-links a.nav-cta:hover {
  color: #fff !important;
}
.nav-links a.btn.primary.is-active::after,
.nav-links a.nav-cta.is-active::after {
  display: none;
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
  padding: 40px 0 28px;
  min-height: auto;
  min-width: 0;
}
.hero-copy,
.hero-visual {
  min-width: 0;
}
.hero-copy h1 {
  margin: 18px 0 16px;
  font-size: clamp(36px, 5.2vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 800;
  color: var(--text);
}
.hero-copy h1 em,
.hero-copy h1 strong {
  font-style: normal;
  color: var(--brand);
  font-weight: 800;
}
.hero-copy .sub {
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 17px;
  max-width: 34em;
}
.hero-copy .sub em,
.hero-copy .sub strong,
.media-copy p em,
.media-copy p strong,
.lead em,
.lead strong,
.page p em,
.page p strong {
  font-style: normal;
  color: var(--text);
  font-weight: 700;
}
.media-copy h3 {
  font-weight: 750;
  letter-spacing: -0.02em;
}
.media-copy h3 em,
.media-copy h3 strong {
  font-style: normal;
  color: var(--brand);
  font-weight: 800;
}
.pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 13px;
}
.hero-visual { position: relative; width: 100%; }
.hero-laptop-wrap {
  position: relative;
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  filter: drop-shadow(0 24px 48px rgba(15, 23, 42, 0.16));
}

/* CSS laptop — screen uses product screenshot */
.laptop-frame { width: 100%; }
.laptop-bezel {
  position: relative;
  background: linear-gradient(180deg, #3a3f48 0%, #1f232b 100%);
  border-radius: 14px 14px 0 0;
  padding: 10px 10px 8px;
  border: 1px solid rgba(255,255,255,0.08);
  border-bottom: 0;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.12);
}
.laptop-camera {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin: 0 auto 8px;
  background: #0b0d12;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.12);
}
.laptop-screen {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  background: #0b1220;
  aspect-ratio: 16 / 10;
}
.hero-laptop {
  width: 100%;
  height: auto;
  display: block;
  user-select: none;
  pointer-events: none;
  filter: drop-shadow(0 24px 48px rgba(15, 23, 42, 0.14));
}
.laptop-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
  user-select: none;
  pointer-events: none;
}
.laptop-chin {
  height: 14px;
  background: linear-gradient(180deg, #2a2e36, #1a1d23);
  border-left: 1px solid rgba(255,255,255,0.06);
  border-right: 1px solid rgba(255,255,255,0.06);
}
.laptop-base {
  height: 10px;
  margin: 0 -3%;
  border-radius: 0 0 10px 10px;
  background: linear-gradient(180deg, #c8ccd4 0%, #aeb4bf 55%, #9aa1ad 100%);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.12);
  position: relative;
}
.laptop-base::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 3px;
  transform: translateX(-50%);
  width: 16%;
  height: 3px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.18);
}

/* Rotating keyboard — one combo at a time */
.kbd-cycle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0 6px;
  min-height: 44px;
  max-width: 100%;
  padding: 6px 12px;
  border-radius: 14px;
  background: rgba(255,255,255,0.78);
  border: 1px solid var(--line);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.04);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.kbd-cycle .kbd-plat-label {
  flex-shrink: 0;
  min-width: 52px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.02em;
}
.kbd-cycle-stage {
  display: inline-flex;
  align-items: center;
  min-width: 7.5em;
}
.kbd-cycle-stage .kbd-combo {
  animation: kbdIn 0.42s var(--ease-out);
}
.kbd-cycle-hint {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand);
  border-left: 1px solid var(--line);
  padding-left: 10px;
  min-width: 3em;
}
@keyframes kbdIn {
  from { opacity: 0; transform: translateY(8px) scale(0.96); }
  to { opacity: 1; transform: none; }
}

.kbd-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 8px;
}
.kbd-combo {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 8px;
  border-radius: 12px;
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--line);
  cursor: default;
  transition: transform 0.25s var(--ease-spring), box-shadow 0.25s ease, background 0.2s ease;
}
.kbd-combo.hot {
  background: var(--brand-soft);
  border-color: rgba(0, 113, 227, 0.25);
}
.kbd-combo.is-press {
  transform: translateY(1px) scale(0.98);
  box-shadow: inset 0 2px 6px rgba(15,23,42,0.08);
}
.kbd-plus, .kbd-arrow {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}
.kbd-arrow { opacity: 0.55; margin: 0 2px; }
kbd, .key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  border-radius: 8px;
  border: 1px solid #c9d0db;
  background: linear-gradient(180deg, #ffffff 0%, #eef1f6 100%);
  box-shadow:
    0 1px 0 #fff inset,
    0 2px 0 #c5ccd8,
    0 4px 10px rgba(15, 23, 42, 0.08);
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
kbd.tap, .key.tap {
  transform: translateY(2px);
  box-shadow:
    0 1px 0 #fff inset,
    0 1px 0 #c5ccd8,
    0 1px 4px rgba(15, 23, 42, 0.1);
  animation: keyTap 0.28s var(--ease-spring);
}
@keyframes keyTap {
  0% { transform: translateY(0); }
  40% { transform: translateY(3px) scale(0.96); }
  100% { transform: translateY(2px); }
}

.float-keys, .float-key { display: none !important; }
.kbd-platform { display: none !important; }
.kbd-plat-label {
  min-width: 52px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.02em;
}
.flow-keys-cycle {
  min-height: 34px;
}
.flow-keys-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.flow-keys-stack .flow-keys {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.flow-os {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  min-width: 28px;
}

/* gallery zoom */
button.g-stage {
  cursor: zoom-in;
  font: inherit;
  color: inherit;
  padding: 0;
  text-align: left;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, #f8fbff, #e8eef8);
}
.g-stage::after {
  content: attr(data-hint);
  position: absolute;
  left: 10px;
  bottom: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(17,24,39,0.55);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  pointer-events: none;
  opacity: 0.92;
  z-index: 2;
}

/* lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(11, 18, 32, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.lightbox.open { display: flex; }
.lightbox-inner {
  position: relative;
  max-width: min(1100px, 96vw);
  max-height: 90vh;
  width: 100%;
}
.lightbox-inner img {
  width: 100%;
  height: auto;
  max-height: 86vh;
  object-fit: contain;
  border-radius: 12px;
  background: #0b1220;
  box-shadow: 0 30px 80px rgba(0,0,0,0.35);
}
.lightbox-close,
.lightbox-nav {
  position: absolute;
  border: 0;
  background: rgba(255,255,255,0.92);
  color: #0b1220;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  font-weight: 700;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.lightbox-close { top: -12px; right: -12px; z-index: 2; }
.lightbox-prev { left: -8px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: -8px; top: 50%; transform: translateY(-50%); }
.lightbox-meta {
  margin-top: 10px;
  text-align: center;
  color: rgba(255,255,255,0.85);
  font-size: 13px;
  font-weight: 600;
}
body.lb-open { overflow: hidden; }


/* Metrics — flat bento tiles */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 8px 0 20px;
}
.metrics.bento .metric.tile {
  border-radius: 20px;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  box-shadow: none;
}
.metric {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 18px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.03);
  transition: transform 0.45s var(--ease-spring), box-shadow 0.35s var(--ease-out), border-color 0.25s ease;
}
.metric:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 113, 227, 0.28);
  box-shadow: var(--shadow);
}
.metric b {
  display: block;
  font-size: clamp(36px, 4.5vw, 48px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--brand);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.metric span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
  font-weight: 500;
}
.metric span em,
.metric span strong {
  font-style: normal;
  color: var(--text);
  font-weight: 800;
}

/* Sections */
.section { padding: 72px 0; }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 36px; }
.eyebrow {
  display: inline-block;
  margin: 0 0 10px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.section h2, .sec-head h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.025em;
}
.lead {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

/* Shared bento tiles */
.bento {
  display: grid;
  gap: 14px;
}
.tile {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px 22px;
  transition: transform 0.45s var(--ease-spring), border-color 0.3s ease, box-shadow 0.4s var(--ease-out);
}
.tile:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 113, 227, 0.22);
  box-shadow: var(--shadow);
}
.tile h3 {
  margin: 0 0 8px;
  font-size: 18px;
  letter-spacing: -0.02em;
}
.tile p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

/* Media rows: 3D card beside copy */
.media-rows {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.media-row {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(20px, 4vw, 48px);
  align-items: center;
  min-width: 0;
}
.media-row.reverse {
  grid-template-columns: 1.05fr 0.95fr;
}
.media-row.reverse .media-card { order: 2; }
.media-row.reverse .media-copy { order: 1; }
.media-card {
  position: relative;
  border-radius: 24px;
  background:
    radial-gradient(120% 90% at 20% 0%, rgba(0,113,227,0.10), transparent 55%),
    var(--bg-elevated);
  border: 1px solid var(--line);
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
  padding: 18px;
  overflow: hidden;
  min-width: 0;
}
.media-card img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
  transform: perspective(900px) rotateY(-4deg) rotateX(3deg);
  transform-style: preserve-3d;
  will-change: transform;
  transition: transform 0.08s linear;
}
.media-card.sm {
  padding: 12px;
  border-radius: 20px;
}
.media-card.sm img {
  border-radius: 12px;
  transform: perspective(800px) rotateY(-3deg) rotateX(2deg);
}
.hero-laptop-wrap {
  transform-style: preserve-3d;
}
.hero-laptop-wrap .hero-laptop {
  transition: transform 0.08s linear;
  will-change: transform;
  transform-origin: center center;
}
.media-copy {
  min-width: 0;
  padding: 8px 4px;
}
.media-copy .scene-tag {
  display: inline-block;
  margin-bottom: 12px;
}
.media-copy h3 {
  margin: 0 0 12px;
  font-size: clamp(22px, 2.6vw, 30px);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.media-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
  max-width: 38em;
}

/* Features showcase grid with 3D cards */
.feat-showcase {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.feat-show {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 14px 14px 18px;
  min-width: 0;
  transition: transform 0.4s var(--ease-spring), box-shadow 0.35s ease;
}
.feat-show:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.feat-show .media-card {
  box-shadow: none;
  border: 0;
  background: var(--soft);
  padding: 10px;
}
.feat-show .media-copy {
  padding: 0 6px;
}
.feat-show h3 {
  margin: 0 0 6px;
  font-size: 17px;
}
.feat-show p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

/* Scenes — bento */
.scene-bento {
  grid-template-columns: 1.35fr 1fr 1fr;
  grid-template-rows: auto auto;
}
.scene-tile.big {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  padding: 28px 26px;
  background:
    radial-gradient(120% 80% at 0% 0%, rgba(0, 113, 227, 0.08), transparent 55%),
    var(--bg-elevated);
}
.scene-tile.big h3 { font-size: 24px; margin-bottom: 12px; }
.scene-tile.big p { font-size: 15px; flex: 1; }
.scene-tile.wide { grid-column: span 2; }
.tile-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}
.tile-num {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
}
.scene-tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}
.tile-keys {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  flex-wrap: wrap;
}

/* Features — bento */
.feat-bento {
  grid-template-columns: repeat(4, 1fr);
}
.feat-tile.span-2 { grid-column: span 2; }
.feat-ico {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--brand-soft);
  color: var(--brand);
  margin-bottom: 12px;
}
.feat-ico svg { width: 18px; height: 18px; }
.feat-tile h3 { font-size: 17px; }
.feat-tile p { font-size: 14px; }

/* Flow */
.flow-sec { padding-top: 40px; }
.flow,
.bento-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.flow-tile,
.flow li {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px;
}
.flow-tile:hover,
.flow li:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 113, 227, 0.22);
  box-shadow: var(--shadow);
}
.flow .step {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  box-shadow: 0 8px 20px rgba(0, 113, 227, 0.3);
}
.flow-keys {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.flow h3 { margin: 2px 0 6px; font-size: 16px; }
.flow p { margin: 0; color: var(--muted); font-size: 14px; }

/* legacy aliases (if any leftover markup) */
.scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.scene {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 26px 24px;
}
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feat {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
}
.feat h3 { margin: 0 0 6px; font-size: 17px; }
.feat p { margin: 0; color: var(--muted); font-size: 14px; }

/* Gallery */
.gallery {
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 1000px;
  margin: 0 auto;
}
.g-stage {
  position: relative;
  flex: 1;
  min-width: 0;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(160deg, #f8fbff, #e8eef8);
  box-shadow: var(--shadow-lg);
}
.g-stage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: gIn 0.55s var(--ease-out);
}
.g-video {
  position: absolute;
  inset: 0;
}
.g-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background: #0b1220;
  cursor: pointer;
}
.g-video-play,
.g-video-fs,
.g-video-mute {
  position: absolute;
  z-index: 3;
  border: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: rgba(11, 18, 32, 0.55);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.g-video-play {
  top: 50%;
  left: 50%;
  width: 68px;
  height: 68px;
  margin: -34px 0 0 -34px;
  border-radius: 50%;
}
.g-video-play svg {
  width: 28px;
  height: 28px;
  margin-left: 3px;
}
.g-video-fs {
  right: 12px;
  top: 12px;
  width: 38px;
  height: 38px;
  border-radius: 10px;
}
.g-video-fs svg {
  width: 18px;
  height: 18px;
}
.g-video-mute {
  right: 58px;
  top: 12px;
  width: 38px;
  height: 38px;
  border-radius: 10px;
}
.g-video-mute svg {
  width: 18px;
  height: 18px;
}
.g-video-mute .mute-off {
  display: none;
}
.g-video-mute.muted .mute-on {
  display: none;
}
.g-video-mute.muted .mute-off {
  display: block;
}
.g-stage:hover .g-video-play,
.g-stage:hover .g-video-fs,
.g-stage:hover .g-video-mute,
.g-video.is-playing .g-video-fs,
.g-video.is-playing .g-video-mute,
.g-stage.is-video:focus-within .g-video-play,
.g-stage.is-video:focus-within .g-video-fs,
.g-stage.is-video:focus-within .g-video-mute {
  opacity: 1;
}
.g-video-play:hover,
.g-video-fs:hover,
.g-video-mute:hover {
  background: rgba(11, 18, 32, 0.78);
  transform: scale(1.05);
}
.g-video-play.is-hidden {
  opacity: 0;
  pointer-events: none;
}
.g-video.is-buffering::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  margin: -22px 0 0 -22px;
  border: 4px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: gSpin 0.8s linear infinite;
  z-index: 2;
}
@keyframes gSpin {
  to { transform: rotate(360deg); }
}
.g-stage.is-video {
  cursor: pointer;
}
.g-stage:not(.is-video) {
  cursor: zoom-in;
}
.g-stage:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}
.g-stage.is-video::after {
  content: "";
}
.g-stage.is-video .g-counter {
  display: none;
}

/* gallery fullscreen fallback */
.g-fs-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.94);
}
.g-fs-overlay[hidden] {
  display: none;
}
.g-fs-overlay video {
  max-width: 96vw;
  max-height: 92vh;
  width: auto;
  height: auto;
  border-radius: 10px;
  background: #000;
}
.g-fs-close {
  position: absolute;
  top: 18px;
  right: 22px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}
.g-fs-close:hover {
  background: rgba(255, 255, 255, 0.25);
}
@keyframes gIn {
  from { opacity: 0.2; transform: scale(1.03) translateY(8px); filter: blur(4px); }
  to { opacity: 1; transform: scale(1) translateY(0); filter: blur(0); }
}
.g-counter {
  position: absolute;
  right: 12px; bottom: 12px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(11, 18, 32, 0.55);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}
.g-nav {
  width: 44px; height: 44px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--bg-elevated);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.35s var(--ease-spring), border-color 0.2s ease, color 0.2s ease;
}
.g-nav svg { width: 18px; height: 18px; }
.g-nav:hover {
  border-color: var(--brand);
  color: var(--brand);
  transform: scale(1.08);
}

/* Pricing */
.pricing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}
.plan {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 24px;
  background: var(--bg-elevated);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform 0.45s var(--ease-spring), box-shadow 0.35s var(--ease-out);
  position: relative;
}
.plan:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.plan .name { font-weight: 800; font-size: 18px; }
.plan .name span {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 11px;
  vertical-align: middle;
}
.plan .price {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 4px 0;
}
.plan .price small { font-size: 14px; color: var(--muted); font-weight: 500; }
.plan-desc { margin: 0 0 8px; color: var(--muted); font-size: 13px; }
.plan-save {
  margin: 0 0 6px;
  color: #0a7a3e;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 999px;
  display: inline-flex;
  align-self: flex-start;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
}
.plan ul {
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
  flex: 1;
}
.plan ul li { margin: 7px 0; }
.plan .btn { margin-top: 18px; width: 100%; }
.plan-foot { margin: 14px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.note { text-align: center; color: var(--muted); font-size: 13px; margin-top: 22px; }

/* Middle plan: circulating light border */
.plan-glow {
  border: none;
  padding: 0;
  background: transparent;
  box-shadow: none;
  z-index: 1;
  overflow: visible;
}
.plan-glow:hover { transform: translateY(-6px); box-shadow: none; }
.plan-glow-ring {
  position: absolute;
  inset: -2px;
  border-radius: 22px;
  overflow: hidden;
  z-index: 0;
  filter: drop-shadow(0 12px 28px rgba(0, 113, 227, 0.3));
}
.plan-glow-ring::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: conic-gradient(
    from 0deg,
    #0071e3 0%,
    #64d2ff 16%,
    #a78bfa 32%,
    #22d3ee 48%,
    #0071e3 64%,
    #93c5fd 80%,
    #0071e3 100%
  );
  animation: planGlowSpin 2.6s linear infinite;
}
@keyframes planGlowSpin {
  to { transform: rotate(360deg); }
}
.plan-glow-ring::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.35);
  pointer-events: none;
}
.plan-inner {
  position: relative;
  z-index: 1;
  margin: 2px;
  border-radius: 18px;
  padding: 28px 24px;
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: calc(100% - 4px);
  box-shadow: 0 16px 40px rgba(0, 113, 227, 0.1);
}
.plan-year {
  border-color: rgba(16, 185, 129, 0.35);
  background: linear-gradient(180deg, #ffffff, #f6fffb);
}

/* Compare — eye-catching Pro column + icons */
.compare {
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: var(--bg-elevated);
  box-shadow: 0 10px 30px rgba(15,23,42,0.04);
}
.compare table { width: 100%; border-collapse: collapse; font-size: 14px; }
.compare th, .compare td {
  padding: 15px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.compare th { background: var(--soft); font-weight: 700; }
.compare th.th-pro {
  background: linear-gradient(180deg, rgba(0,113,227,0.16), rgba(0,113,227,0.08));
  color: var(--brand-dark);
  text-align: center;
  font-size: 15px;
}
.compare tr:last-child td { border-bottom: none; }
.compare tr:hover td { background: rgba(0, 113, 227, 0.03); }
.compare tr:hover td.cmp-pro { background: rgba(0, 113, 227, 0.08); }
.cmp-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 650;
  color: var(--text);
}
.cmp-ico {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  background: var(--brand-soft);
  color: var(--brand);
  border: 1px solid rgba(0, 113, 227, 0.12);
}
.cmp-ico svg { width: 16px; height: 16px; }
.cmp-free {
  text-align: center;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.cmp-pro {
  text-align: center;
  background: linear-gradient(90deg, rgba(0,113,227,0.06), rgba(0,113,227,0.12));
  font-weight: 700;
}
.cmp-pro-val {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand-dark);
  background: rgba(255,255,255,0.75);
  border: 1px solid rgba(0, 113, 227, 0.2);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 13px;
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.08);
}
.cmp-pro-val::before {
  content: "✓";
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  line-height: 1;
}

/* FAQ */
.faq { max-width: 760px; margin: 0 auto; }
.faq details {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0;
  margin-bottom: 10px;
  background: var(--bg-elevated);
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.3s var(--ease-out);
}
.faq details[open] {
  border-color: rgba(0,113,227,0.28);
  box-shadow: 0 10px 28px rgba(0,113,227,0.06);
}
.faq summary {
  font-weight: 750;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  padding: 16px 44px 16px 18px;
  position: relative;
  font-size: 15px;
  line-height: 1.4;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--brand);
  font-weight: 700;
  font-size: 18px;
  transition: transform 0.35s var(--ease-spring);
}
.faq details[open] summary::after { content: "–"; }
.faq p {
  margin: 0;
  padding: 0 18px 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}
.faq p strong,
.faq p em,
.faq p b {
  font-style: normal;
  color: var(--text);
  font-weight: 750;
}
.section h2 em,
.section h2 strong,
.sec-head h2 em,
.sec-head h2 strong {
  font-style: normal;
  color: var(--brand);
  font-weight: 800;
}
.final-cta h2 {
  font-weight: 800;
}

/* Final CTA */
.final-cta {
  text-align: center;
  padding: 56px 28px;
  margin: 20px 0 10px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 20% 20%, rgba(0,113,227,0.18), transparent 45%),
    radial-gradient(circle at 80% 80%, rgba(100,210,255,0.16), transparent 40%),
    var(--bg-elevated);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.final-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.final-cta p {
  margin: 0 0 24px;
  color: var(--muted);
}
.final-cta .cta-row { justify-content: center; }

/* Footer */
.footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 40px;
  margin-top: 48px;
}
.footer .cols {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
  gap: 28px 20px;
  font-size: 13px;
  color: var(--muted);
}
.footer .cols a {
  display: block;
  color: var(--muted);
  margin: 7px 0;
  text-decoration: none;
}
.footer .cols a:hover { color: var(--text); }
.footer b, .footer .foot-title {
  display: block;
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
}
.foot-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.foot-brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}
.foot-brand span {
  font-weight: 800;
  font-size: 16px;
  color: var(--text);
}
.foot-desc { margin: 0 0 12px; max-width: 28em; line-height: 1.55; }
.foot-mail {
  display: inline-block !important;
  color: var(--brand) !important;
  font-weight: 600;
}
.footer .copy {
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  justify-content: space-between;
  align-items: center;
}
.footer .copy a { color: var(--muted); text-decoration: none; }
.footer .copy a:hover { color: var(--text); }
@media (max-width: 960px) {

  .media-row,
  .media-row.reverse { grid-template-columns: 1fr; }
  .media-row.reverse .media-card,
  .media-row.reverse .media-copy { order: unset; }
  .feat-showcase { grid-template-columns: repeat(2, 1fr); }
  .media-card img { transform: none; }
  .media-card:hover img { transform: scale(1.02); }

  .footer .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {

  .feat-showcase { grid-template-columns: 1fr; }
  .media-rows { gap: 32px; }

  .footer .cols { grid-template-columns: 1fr; }
  .lightbox-prev { left: 4px; }
  .lightbox-next { right: 4px; }
  .lightbox-close { top: 8px; right: 8px; }
}

/* Reveal — nonlinear enter */
.reveal {
  opacity: 0;
  transform: translate3d(0, 36px, 0) scale(0.98);
  filter: blur(4px);
  transition:
    opacity 0.9s var(--ease-out),
    transform 0.95s var(--ease-out),
    filter 0.85s var(--ease-out);
  will-change: opacity, transform, filter;
}
.reveal.in {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
  filter: blur(0);
}
.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }

/* Download page */
.dl-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 48px 0 80px;
}
.dl-head { text-align: center; margin-bottom: 36px; }
.dl-head h1 {
  margin: 14px 0 10px;
  font-size: clamp(32px, 5vw, 44px);
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.dl-sub {
  margin: 0 auto 18px;
  max-width: 28em;
  color: var(--muted);
  font-size: 16px;
}
.dl-version {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}
.dl-version strong {
  color: var(--text);
  font-weight: 750;
  font-variant-numeric: tabular-nums;
}
.dl-dot { opacity: 0.45; }
.dl-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 36px;
}
.dl-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 28px 24px 24px;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  color: inherit;
  transition: transform 0.35s var(--ease-spring), border-color 0.2s ease, box-shadow 0.3s ease;
}
.dl-card:hover {
  text-decoration: none;
  transform: translateY(-4px);
  border-color: rgba(0, 113, 227, 0.35);
  box-shadow: var(--shadow-lg);
}
.dl-card.is-recommended {
  border-color: rgba(0, 113, 227, 0.45);
  box-shadow: 0 16px 40px rgba(0, 113, 227, 0.12);
}
.dl-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 8px;
}
.dl-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--soft);
  color: var(--text);
}
.dl-ico.win { color: #0078d4; }
.dl-badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
}
.dl-badge[hidden] { display: none !important; }
.dl-card h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 750;
  color: var(--text);
}
.dl-version {
  display: block;
  margin: 2px 0 10px;
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
}
.dl-meta {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}
.dl-file {
  margin: 0 0 14px;
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  word-break: break-all;
}
.dl-btn {
  width: 100%;
  margin-top: auto;
}
.dl-notes {
  padding: 22px 24px;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid var(--line);
}
.dl-notes h3 {
  margin: 0 0 12px;
  font-size: 16px;
  color: var(--text);
}
.dl-notes ul {
  margin: 0 0 14px;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
}
.dl-notes li { margin: 6px 0; }
.dl-help {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}
@media (max-width: 720px) {
  .dl-grid { grid-template-columns: 1fr; }
  .dl-page { padding: 28px 0 64px; }
}

/* Legal / support pages — 限制在 wrap 内，避免页脚/正文撑出视口 */
.page {
  max-width: 780px;
  width: 100%;
  margin: 0 auto;
  padding: 48px 0 80px;
  box-sizing: border-box;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.page h1 { font-size: clamp(26px, 4vw, 32px); margin: 0 0 8px; color: var(--text); }
.page h2 { font-size: 20px; margin-top: 36px; margin-bottom: 10px; color: var(--text); }
.page h3 { font-size: 16px; margin-top: 22px; margin-bottom: 8px; color: var(--text); font-weight: 600; }
.page p, .page li { color: var(--muted); font-size: 15px; line-height: 1.75; }
.page p { margin: 0 0 12px; max-width: 100%; }
.page ul, .page ol { margin: 0 0 14px; padding-left: 22px; }
.page li { margin: 6px 0; }
.page a { word-break: break-all; }
.page .meta { color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.page .toc {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 18px 0 28px;
}
.page .toc b { display: block; color: var(--text); margin-bottom: 8px; font-size: 14px; }
.page .toc a { display: block; color: var(--muted); font-size: 13px; padding: 3px 0; }
.page .toc a:hover { color: var(--brand); text-decoration: none; }
.page .legal-foot {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}

.seo-page { max-width: 900px; }
.seo-page h1 {
  max-width: 780px;
  margin: 10px 0 14px;
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.045em;
}
.seo-page h2 {
  margin-top: 52px;
  font-size: clamp(24px, 4vw, 32px);
  letter-spacing: -0.025em;
}
.seo-page h3 { font-size: 18px; }
.seo-page p,
.seo-page li { font-size: 16px; }
.seo-page a { word-break: normal; }
.seo-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 13px;
}
.seo-breadcrumbs a { color: var(--muted); }
.seo-lede {
  max-width: 760px;
  color: var(--text) !important;
  font-size: clamp(18px, 2.5vw, 22px) !important;
  line-height: 1.55 !important;
}
.seo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 34px;
}
.seo-answer,
.seo-card,
.seo-cta {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--bg-elevated);
  padding: 22px 24px;
}
.seo-answer { margin: 26px 0; }
.seo-answer p:last-child,
.seo-card p:last-child,
.seo-cta p:last-child { margin-bottom: 0; }
.seo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 20px 0 28px;
}
.seo-card h2,
.seo-card h3 { margin-top: 0; }
.seo-card .btn { margin-top: 8px; }
.seo-table-wrap {
  overflow-x: auto;
  margin: 20px 0 30px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--bg-elevated);
}
.seo-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  color: var(--muted);
  font-size: 14px;
}
.seo-table th,
.seo-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}
.seo-table th { color: var(--text); background: var(--soft); }
.seo-table tr:last-child td { border-bottom: 0; }
.seo-step {
  margin: 14px 0;
  padding-left: 18px;
  border-left: 3px solid var(--brand);
}
.seo-step strong { color: var(--text); }
.seo-page kbd {
  display: inline-block;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: var(--bg-elevated);
  padding: 1px 6px;
  color: var(--text);
  font: inherit;
  font-size: .9em;
}
.seo-cta {
  margin-top: 48px;
  background: linear-gradient(135deg, rgba(0,113,227,.12), rgba(100,210,255,.08));
}
.seo-cta h2 { margin-top: 0; }
.seo-sources {
  margin-top: 44px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

@media (max-width: 680px) {
  .seo-grid { grid-template-columns: 1fr; }
  .seo-answer,
  .seo-card,
  .seo-cta { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; filter: none; }
  .float-y, .float-chip { animation: none !important; }
  /* 背景光效（光球 + 价格卡光环）始终保留流动效果 */
}

@media (max-width: 960px) {

  .media-row,
  .media-row.reverse { grid-template-columns: 1fr; }
  .media-row.reverse .media-card,
  .media-row.reverse .media-copy { order: unset; }
  .feat-showcase { grid-template-columns: repeat(2, 1fr); }
  .media-card img { transform: none; }
  .media-card:hover img { transform: scale(1.02); }

  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 28px; }
  .hero-visual { order: -1; width: 100%; }
  .hero-laptop-wrap { max-width: 480px; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .scene-bento {
    grid-template-columns: 1fr 1fr;
  }
  .scene-tile.big {
    grid-row: auto;
    grid-column: span 2;
  }
  .scene-tile.wide { grid-column: span 2; }
  .feat-bento { grid-template-columns: repeat(2, 1fr); }
  .feat-tile.span-2 { grid-column: span 2; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .flow,
  .bento-flow { grid-template-columns: 1fr; }
  .pricing { grid-template-columns: 1fr; }
  .footer .cols { grid-template-columns: 1fr 1fr; }
  .float-keys { display: none; }
  .kbd-row { gap: 6px; }
}

@media (max-width: 680px) {

  .feat-showcase { grid-template-columns: 1fr; }
  .media-rows { gap: 32px; }

  .nav { flex-wrap: wrap; }
  .nav-links { gap: 10px 12px; }
  .nav-cta { display: none; }
  .scene-bento,
  .scene-grid,
  .feat-bento,
  .feat-grid { grid-template-columns: 1fr; }
  .scene-tile.big,
  .scene-tile.wide,
  .feat-tile.span-2 { grid-column: auto; grid-row: auto; }
  .metrics { grid-template-columns: 1fr 1fr; gap: 10px; }
  .section { padding: 52px 0; }
  .g-nav { width: 36px; height: 36px; }
  .footer .cols { grid-template-columns: 1fr; }
}


/* Language select — 完整语言名，宽度适中 */
.lang-wrap { display: inline-flex; align-items: center; }
.lang-select {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--line);
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 12 8'%3E%3Cpath fill='%236b7280' d='M1 1l5 5 5-5'/%3E%3C/svg%3E") no-repeat right 10px center;
  color: var(--text);
  border-radius: 999px;
  padding: 6px 26px 6px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  width: auto;
  min-width: 88px;
  max-width: 128px;
  line-height: 1.2;
}
.lang-select:hover { background-color: var(--soft); }
.lang-select:focus { outline: 2px solid rgba(0,113,227,0.35); outline-offset: 1px; }
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}