:root {
  --bg: #070a14;
  --bg-alt: #0b1020;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.09);
  --border-hover: rgba(47, 123, 255, 0.55);
  --text: #eef2fa;
  --text-dim: #9aa5bd;
  --blue: #2f7bff;
  --blue-light: #7cc4ff;
  --orange: #ff7a1a;
  --grad: linear-gradient(90deg, var(--blue) 0%, var(--blue-light) 55%, var(--orange) 130%);
  --grad-btn: linear-gradient(92deg, #2f7bff 0%, #4d95ff 60%, #ff7a1a 160%);
  --radius: 16px;
  --shadow-glow: 0 8px 40px rgba(47, 123, 255, 0.25);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

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

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 22px; border-radius: 999px; border: 1px solid transparent;
  font-size: 15px; font-weight: 600; cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--blue-light); outline-offset: 3px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-primary {
  background: var(--grad-btn); color: #fff;
  box-shadow: 0 4px 18px rgba(47, 123, 255, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(47, 123, 255, 0.5); }
.btn-primary:active { transform: translateY(0); }

@property --orbit-angle { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
.btn-orbit { position: relative; }
.btn-orbit::before,
.btn-orbit::after {
  content: ""; position: absolute; inset: -2px; border-radius: inherit; pointer-events: none;
  padding: 2px;
  background: conic-gradient(from var(--orbit-angle),
    transparent 0deg, transparent 240deg,
    rgba(140, 210, 255, .15) 280deg,
    rgba(140, 210, 255, .85) 325deg,
    #eaf7ff 350deg,
    rgba(140, 210, 255, .85) 356deg,
    transparent 360deg);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  animation: orbit-spin 2.8s linear infinite;
}
.btn-orbit::after { inset: -3px; padding: 3px; filter: blur(6px); opacity: .9; }
@keyframes orbit-spin { to { --orbit-angle: 360deg; } }
@media (prefers-reduced-motion: reduce) {
  .btn-orbit::before, .btn-orbit::after { animation: none; }
}

.btn-outline {
  border-color: rgba(255,255,255,.25); color: var(--text);
  background: rgba(255,255,255,.03);
}
.btn-outline:hover { border-color: var(--blue-light); background: rgba(47,123,255,.12); transform: translateY(-2px); }

.btn-ghost { color: var(--text-dim); padding: 10px 16px; }
.btn-ghost:hover { color: var(--text); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(7, 10, 20, 0.72);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; gap: 32px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo { height: 36px; width: auto; display: block; transition: transform .3s ease, opacity .3s ease; }
.brand:hover .brand-logo { transform: scale(1.04); }

.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a { font-size: 14.5px; color: var(--text-dim); position: relative; padding: 4px 0; transition: color .2s ease; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 100%; height: 2px;
  background: var(--grad); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--text); }
.nav-links a:hover::after, .nav-links a:focus-visible::after { transform: scaleX(1); }

.nav-actions { display: flex; align-items: center; gap: 8px; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; margin-left: auto; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .3s ease, opacity .3s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile { display: flex; flex-direction: column; gap: 4px; padding: 12px 24px 20px; border-top: 1px solid var(--border); }
.nav-mobile[hidden] { display: none; }
.nav-mobile a { padding: 12px 8px; color: var(--text-dim); font-size: 15px; border-radius: 10px; transition: background .2s ease, color .2s ease; }
.nav-mobile a:hover { background: var(--surface); color: var(--text); }
.nav-mobile .btn { margin-top: 8px; color: #fff; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 48px 0 80px; }
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; opacity: .34; }
.hero-media-mask {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(47,123,255,.18), transparent 60%),
    linear-gradient(180deg, rgba(7,10,20,.35) 0%, rgba(7,10,20,.85) 75%, var(--bg) 100%);
}
.hero-content { position: relative; text-align: center; max-width: 880px; }

.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface);
  font-size: 13px; color: var(--text-dim); margin-bottom: 28px;
  transition: border-color .3s ease, background .3s ease;
}
.hero-tag:hover { border-color: var(--border-hover); background: rgba(47,123,255,.08); }
.hero-tag .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--orange);
  box-shadow: 0 0 10px var(--orange); animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }

.hero-slogan {
  margin-bottom: 20px; font-size: 16px; font-weight: 600;
  letter-spacing: .45em; padding-left: .45em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}

.hero h1 { font-size: clamp(34px, 5.4vw, 60px); line-height: 1.22; font-weight: 800; letter-spacing: .5px; }
.hero h1 em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { margin: 24px auto 0; max-width: 640px; font-size: 17px; color: var(--text-dim); }
.hero-actions { margin-top: 36px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.hero-stats {
  margin-top: 56px; list-style: none;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  width: min(1080px, calc(100vw - 48px));
  margin-left: 50%; transform: translateX(-50%);
}
.hero-stats li {
  padding: 18px 8px; border-radius: var(--radius);
  border: 1px solid var(--border); background: rgba(11,16,32,.55);
  backdrop-filter: blur(8px);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.hero-stats li:hover { transform: translateY(-4px); border-color: var(--border-hover); box-shadow: var(--shadow-glow); }
.hero-stats strong { display: block; font-size: 26px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-stats span { font-size: 13px; color: var(--text-dim); }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.section-tag {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 2px;
  color: var(--blue-light); text-transform: uppercase; margin-bottom: 14px;
}
.section-title { font-size: clamp(26px, 3.6vw, 40px); font-weight: 800; letter-spacing: .5px; }
.section-sub { margin-top: 14px; max-width: 620px; color: var(--text-dim); font-size: 16px; }
.section .section-tag, .section .section-title, .section .section-sub { text-align: center; }
.section .section-tag, .section .section-title { width: 100%; }
.section .section-sub { margin-left: auto; margin-right: auto; }

/* ---------- Features ---------- */
.feature-grid { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
  position: relative; padding: 28px 26px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--surface);
  overflow: hidden; cursor: default;
  transition: transform .3s ease, border-color .3s ease, background .3s ease, box-shadow .3s ease;
}
.feature-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: var(--grad); opacity: 0; transition: opacity .3s ease;
}
.feature-card:hover, .feature-card:focus-visible {
  transform: translateY(-6px); border-color: var(--border-hover);
  background: var(--surface-hover); box-shadow: var(--shadow-glow);
  outline: none;
}
.feature-card:hover::before, .feature-card:focus-visible::before { opacity: 1; }

.feature-num {
  position: absolute; top: 18px; right: 22px;
  font-size: 40px; font-weight: 800; color: rgba(255,255,255,.05);
  transition: color .3s ease;
}
.feature-card:hover .feature-num { color: rgba(47,123,255,.16); }

.feature-icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(47,123,255,.18), rgba(255,122,26,.14));
  border: 1px solid rgba(47,123,255,.3);
  margin-bottom: 20px;
  transition: transform .3s ease, box-shadow .3s ease, background .3s ease, border-color .3s ease;
}
.feature-icon svg { width: 26px; height: 26px; color: var(--blue-light); transition: color .3s ease; }
.feature-card:hover .feature-icon,
.feature-card:focus-visible .feature-icon,
.fine-card:hover .feature-icon {
  transform: scale(1.06);
  background: linear-gradient(135deg, #6d68f2 0%, #4f8bf5 52%, #35c8f0 100%);
  border-color: transparent;
  box-shadow: 0 10px 30px rgba(53,200,240,.38), 0 0 22px rgba(109,104,242,.35);
}
.feature-card:hover .feature-icon svg,
.feature-card:focus-visible .feature-icon svg,
.fine-card:hover .feature-icon svg { color: #fff; }

.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 14.5px; color: var(--text-dim); }

/* ---------- Characters ---------- */
.char-grid { margin-top: 56px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.char-card {
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); background: var(--surface);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.char-card:hover { transform: translateY(-6px); border-color: var(--border-hover); box-shadow: var(--shadow-glow); }

.char-media { position: relative; aspect-ratio: 2 / 3; overflow: hidden; }
.char-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.char-card:hover .char-media img { transform: scale(1.06); }

.char-overlay {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 20px; gap: 10px;
  background: linear-gradient(180deg, transparent 30%, rgba(7,10,20,.88) 100%);
  opacity: 0; transition: opacity .35s ease;
}
.char-overlay p { font-size: 13.5px; color: #dfe6f4; transform: translateY(12px); transition: transform .35s ease; }
.char-cta {
  font-size: 13px; font-weight: 700; color: var(--orange);
  transform: translateY(12px); transition: transform .35s ease .05s;
}
.char-card:hover .char-overlay, .char-card:focus-within .char-overlay { opacity: 1; }
.char-card:hover .char-overlay p, .char-card:hover .char-cta,
.char-card:focus-within .char-overlay p, .char-card:focus-within .char-cta { transform: translateY(0); }

.char-info { padding: 16px 18px; }
.char-info h3 { font-size: 16px; font-weight: 700; }
.char-info p { font-size: 13px; color: var(--text-dim); margin-top: 2px; }

.char-points {
  margin-top: 44px; list-style: none;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 32px;
  max-width: 820px; margin-left: auto; margin-right: auto;
}
.char-points li {
  display: flex; align-items: center; gap: 12px;
  font-size: 15px; color: var(--text-dim);
  padding: 12px 16px; border-radius: 12px; border: 1px solid transparent;
  transition: color .25s ease, border-color .25s ease, background .25s ease;
}
.char-points li:hover { color: var(--text); border-color: var(--border-hover); background: rgba(47,123,255,.06); }
.char-points svg { width: 20px; height: 20px; color: var(--orange); flex-shrink: 0; }

/* ---------- Workflow ---------- */
.steps { margin-top: 56px; display: flex; align-items: stretch; gap: 20px; }
.step {
  flex: 1; padding: 32px 28px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--surface);
  text-align: center; transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.step:hover { transform: translateY(-6px); border-color: var(--border-hover); box-shadow: var(--shadow-glow); }
.step-index {
  width: 52px; height: 52px; margin: 0 auto 20px; border-radius: 50%;
  display: grid; place-items: center;
  font-size: 22px; font-weight: 800; color: #fff;
  background: var(--grad-btn); box-shadow: 0 4px 18px rgba(47,123,255,.4);
  transition: transform .3s ease;
}
.step:hover .step-index { transform: scale(1.12); }
.step h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.step p { font-size: 14.5px; color: var(--text-dim); }

.step-arrow { align-self: center; flex-shrink: 0; color: rgba(255,255,255,.25); }
.step-arrow svg { width: 28px; height: 28px; }

/* ---------- Studio ---------- */
.section-studio {
  background:
    radial-gradient(ellipse 60% 45% at 50% 0%, rgba(47, 123, 255, 0.1), transparent 65%),
    radial-gradient(ellipse 40% 35% at 90% 100%, rgba(255, 122, 26, 0.07), transparent 60%),
    var(--bg);
}
.studio-cta { margin-top: 30px; text-align: center; }
.btn-ic { width: 18px; height: 18px; margin-right: 8px; }

.studio-tabs { margin-top: 52px; display: flex; justify-content: center; gap: 44px; }
.studio-tab {
  position: relative; padding: 10px 4px; border: 0; background: none; cursor: pointer;
  font-size: 16px; font-weight: 600; color: var(--text-dim); font-family: inherit;
  transition: color .25s ease;
}
.studio-tab::after {
  content: ""; position: absolute; left: 50%; bottom: 0; width: 28px; height: 2px;
  background: var(--grad); border-radius: 2px;
  transform: translateX(-50%) scaleX(0); transition: transform .3s ease;
}
.studio-tab:hover { color: var(--text); }
.studio-tab.is-active { color: var(--blue-light); }
.studio-tab.is-active::after { transform: translateX(-50%) scaleX(1); }
.studio-tab:focus-visible { outline: 2px solid var(--blue-light); outline-offset: 3px; border-radius: 8px; }

.studio-panel { margin-top: 40px; }
.studio-panel[hidden] { display: none; }

.editor {
  border: 1px solid var(--border); border-radius: 18px; overflow: hidden;
  background: #0d1322; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}
.editor-bar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 10px 18px; background: #151b2b; border-bottom: 1px solid var(--border);
  font-size: 12.5px; color: var(--text-dim);
}
.editor-bar > span { transition: color .2s ease; cursor: default; }
.editor-bar > span:hover { color: var(--text); }
.editor-spacer { margin-left: auto; }
.editor-live i {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 6px;
  background: var(--orange); box-shadow: 0 0 8px var(--orange); animation: pulse 2s infinite;
}
.editor-export {
  padding: 4px 16px; border-radius: 8px; cursor: pointer;
  background: rgba(47, 123, 255, 0.15); border: 1px solid rgba(47, 123, 255, 0.35);
  color: var(--blue-light) !important; font-weight: 600;
  transition: background .25s ease, box-shadow .25s ease;
}
.editor-export:hover { background: rgba(47, 123, 255, 0.3); box-shadow: 0 0 14px rgba(47, 123, 255, 0.4); }

.editor-toolrow { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; padding: 14px 18px; }
.tool-chip {
  display: inline-flex; align-items: center; gap: 7px; padding: 7px 14px;
  border-radius: 10px; border: 1px solid var(--border); background: rgba(255, 255, 255, 0.03);
  color: var(--text-dim); font-size: 13px; font-family: inherit; cursor: pointer;
  transition: color .25s ease, border-color .25s ease, background .25s ease, transform .25s ease;
}
.tool-chip:hover, .tool-chip:focus-visible {
  color: #fff; border-color: var(--border-hover); background: rgba(47, 123, 255, 0.12);
  transform: translateY(-2px); outline: none;
}
.tool-chip svg { width: 15px; height: 15px; }
.chip-badge {
  padding: 1px 5px; border-radius: 4px; font-size: 10.5px; font-weight: 800;
  background: var(--grad-btn); color: #fff;
}

.editor-body { display: grid; grid-template-columns: 190px 1fr 220px; min-height: 440px; }
.editor-left {
  display: flex; flex-direction: column; gap: 8px; padding: 14px;
  border-right: 1px solid var(--border); background: rgba(255, 255, 255, 0.015);
}
.editor-left-head { display: flex; align-items: center; gap: 8px; padding: 8px 10px; font-size: 13px; font-weight: 700; }
.editor-left-head svg { width: 14px; height: 14px; color: var(--blue-light); }
.editor-left button {
  display: flex; align-items: center; gap: 9px; padding: 10px 12px; text-align: left;
  border-radius: 10px; border: 1px solid var(--border); background: rgba(255, 255, 255, 0.03);
  color: var(--text-dim); font-size: 13px; font-family: inherit; cursor: pointer;
  transition: color .25s ease, border-color .25s ease, background .25s ease;
}
.editor-left button:hover, .editor-left button:focus-visible {
  color: #fff; border-color: var(--border-hover); background: rgba(47, 123, 255, 0.1); outline: none;
}
.editor-left svg { width: 15px; height: 15px; flex-shrink: 0; }

.editor-canvas { display: flex; flex-direction: column; gap: 14px; padding: 18px; }
.editor-canvas > img {
  width: 100%; aspect-ratio: 16 / 9; object-fit: cover;
  border-radius: 12px; border: 1px solid var(--border);
}
.editor-timeline {
  position: relative; display: flex; flex-direction: column; gap: 8px;
  padding: 14px 12px; border-radius: 12px; border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}
.tl-row { display: flex; align-items: center; gap: 10px; }
.tl-label { width: 52px; flex-shrink: 0; font-size: 11.5px; color: var(--text-dim); }
.tl-track { display: flex; gap: 4px; height: 26px; flex: 1; }
.tl-track i { border-radius: 6px; background: linear-gradient(90deg, #2f7bff, #4d95ff); opacity: .85; transition: opacity .2s ease, filter .2s ease; }
.tl-track i:hover { opacity: 1; filter: brightness(1.2); }
.tl-track.char i { background: linear-gradient(90deg, #ff7a1a, #ffa25c); }
.tl-track.audio i {
  background: repeating-linear-gradient(90deg, rgba(124, 196, 255, 0.7) 0 2px, transparent 2px 5px);
  background-color: rgba(124, 196, 255, 0.08);
  border: 1px solid rgba(124, 196, 255, 0.35);
}
.tl-playhead {
  position: absolute; top: 8px; bottom: 8px; left: 10%; width: 2px;
  background: var(--orange); box-shadow: 0 0 10px var(--orange);
  animation: playhead 9s linear infinite;
}
.tl-playhead::before {
  content: ""; position: absolute; top: -5px; left: -4px; width: 10px; height: 10px;
  border-radius: 50%; background: var(--orange);
}
@keyframes playhead { 0% { left: 8%; } 100% { left: 92%; } }

.editor-right {
  display: flex; flex-direction: column; gap: 12px; padding: 14px;
  border-left: 1px solid var(--border); background: rgba(255, 255, 255, 0.015);
}
.editor-right-head { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--text-dim); }
.editor-right-head .is-active { color: var(--text); font-weight: 700; }
.editor-right-head span { cursor: pointer; transition: color .2s ease; }
.editor-right-head span:hover { color: var(--text); }
.shot-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.shot-thumbs img {
  aspect-ratio: 1; object-fit: cover; border-radius: 6px; border: 1px solid var(--border);
  cursor: pointer; transition: transform .25s ease, border-color .25s ease;
}
.shot-thumbs img:hover { transform: scale(1.08); border-color: var(--border-hover); }
.shot-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.shot-list li {
  display: flex; align-items: center; gap: 9px; padding: 6px 8px; border-radius: 8px;
  font-size: 12.5px; color: var(--text-dim); cursor: pointer;
  transition: background .2s ease, color .2s ease;
}
.shot-list li:hover { background: rgba(47, 123, 255, 0.1); color: #fff; }
.shot-list img { width: 30px; height: 30px; border-radius: 6px; object-fit: cover; flex-shrink: 0; }

.fine-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.fine-card {
  padding: 26px 24px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--surface);
  transition: transform .3s ease, border-color .3s ease, background .3s ease, box-shadow .3s ease;
}
.fine-card:hover { transform: translateY(-6px); border-color: var(--border-hover); background: var(--surface-hover); box-shadow: var(--shadow-glow); }
.fine-card .feature-icon { width: 46px; height: 46px; margin-bottom: 16px; }
.fine-card .feature-icon svg { width: 23px; height: 23px; }
.fine-card h3 { font-size: 16.5px; font-weight: 700; margin-bottom: 8px; }
.fine-card p { font-size: 14px; color: var(--text-dim); }

/* ---------- Showcase ---------- */
.show-grid { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.show-card {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); aspect-ratio: 16 / 9; background: var(--bg);
  cursor: pointer;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.show-card:hover { transform: translateY(-5px); border-color: var(--border-hover); box-shadow: var(--shadow-glow); }
.show-card:focus-visible { outline: 2px solid var(--blue-light); outline-offset: 3px; }
.show-card img, .show-card video { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease, filter .4s ease; }
.show-card:hover img, .show-card:hover video { transform: scale(1.05); filter: brightness(.7); }

.show-overlay {
  position: absolute; inset: auto 0 0 0; padding: 18px 20px;
  background: linear-gradient(180deg, transparent, rgba(7,10,20,.9));
  transform: translateY(8px); opacity: 0; transition: transform .35s ease, opacity .35s ease;
}
.show-card:hover .show-overlay { transform: translateY(0); opacity: 1; }
.show-overlay h3 { font-size: 16px; font-weight: 700; }
.show-overlay p { font-size: 12.5px; color: var(--text-dim); margin-top: 2px; }

.show-play {
  position: absolute; top: 50%; left: 50%; width: 56px; height: 56px;
  transform: translate(-50%, -50%) scale(.7); border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(47,123,255,.85); color: #fff;
  opacity: 0; transition: opacity .3s ease, transform .3s ease;
  box-shadow: 0 0 30px rgba(47,123,255,.6);
}
.show-play svg { width: 24px; height: 24px; margin-left: 3px; }
.show-play .ic-pause { display: none; margin-left: 0; }
.show-card:hover .show-play, .show-card:focus-visible .show-play { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.show-card.is-playing .ic-play { display: none; }
.show-card.is-playing .ic-pause { display: block; }
.show-card.is-playing .show-play { opacity: 0; }
.show-card.is-playing:hover .show-play, .show-card.is-playing:focus-visible .show-play { opacity: 1; }

.show-card-more {
  display: grid; place-items: center; text-align: center;
  background:
    radial-gradient(ellipse 90% 90% at 50% 110%, rgba(47,123,255,.25), transparent 60%),
    radial-gradient(ellipse 70% 70% at 80% 0%, rgba(255,122,26,.14), transparent 60%),
    var(--bg-alt);
  padding: 32px;
}
.show-more-inner h3 { font-size: 24px; font-weight: 800; line-height: 1.4; margin-bottom: 20px; }
.show-card-more:hover { transform: translateY(-5px); }

/* ---------- Enterprise pricing ---------- */
.ent-grid {
  margin-top: 64px; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  gap: 64px; align-items: stretch; text-align: left;
}
.ent-left { min-width: 0; display: flex; flex-direction: column; }
.ent-lead { font-size: 26px; font-weight: 800; line-height: 1.45; }
.ent-word { margin-top: 64px; font-size: 88px; font-weight: 800; letter-spacing: -2px; line-height: 1; color: var(--blue); }
.ent-word-sub { margin-top: 16px; font-size: 15px; color: var(--text-dim); }
.ent-logos-scroller {
  margin-top: auto; padding-top: 80px; width: 100%; min-width: 0;
  overflow-x: auto; overflow-y: hidden;
  scrollbar-width: none; cursor: grab;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.ent-logos-scroller::-webkit-scrollbar { display: none; }
.ent-logos-scroller.is-dragging { cursor: grabbing; }
.ent-logos {
  list-style: none; margin: 0;
  display: flex; align-items: center; gap: 46px; flex-wrap: nowrap;
  width: max-content;
}
.ent-logos li {
  display: inline-flex; align-items: center; gap: 9px; flex: 0 0 auto;
  color: rgba(255, 255, 255, .4); font-size: 16px; font-weight: 700;
  white-space: nowrap; user-select: none;
  transition: color .25s ease;
}
.ent-logos li:hover { color: rgba(255, 255, 255, .75); }
.ent-logos svg { width: 20px; height: 20px; }
.ent-right {
  border-left: 1px solid var(--border); padding-left: 64px;
  display: flex; flex-direction: column;
}
.ent-plan-label { font-size: 13px; font-weight: 700; letter-spacing: 2px; color: var(--text-dim); }
.ent-list { list-style: none; margin: 28px 0 36px; display: grid; gap: 18px; }
.ent-list li { position: relative; padding-left: 32px; font-size: 15px; color: var(--text); }
.ent-list li::before {
  content: ""; position: absolute; left: 0; top: 2px; width: 18px; height: 18px;
  border-radius: 50%; background: var(--blue);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
  background-size: 10px; background-repeat: no-repeat; background-position: center;
}
.ent-contact {
  margin-top: auto; width: 100%; padding: 15px 20px;
  background: #f2f5fa; color: #0b1020; font-weight: 700;
}
.ent-contact:hover { background: #fff; transform: translateY(-2px); box-shadow: 0 10px 26px rgba(255, 255, 255, .14); }

/* ---------- CTA ---------- */
.cta {
  padding: 110px 0; position: relative; overflow: hidden;
  background:
    radial-gradient(ellipse 70% 90% at 20% 110%, rgba(47,123,255,.28), transparent 60%),
    radial-gradient(ellipse 60% 80% at 85% -10%, rgba(255,122,26,.18), transparent 60%),
    var(--bg-alt);
  border-top: 1px solid var(--border);
}
.cta-inner { text-align: center; max-width: 680px; }
.cta h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; }
.cta p { margin-top: 14px; color: var(--text-dim); font-size: 16px; }
.cta-form { margin-top: 36px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-form input {
  flex: 1; min-width: 260px; max-width: 380px;
  padding: 14px 20px; border-radius: 999px;
  border: 1px solid var(--border); background: rgba(7,10,20,.6);
  color: var(--text); font-size: 15px;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.cta-form input::placeholder { color: rgba(154,165,189,.7); }
.cta-form input:hover { border-color: rgba(255,255,255,.2); }
.cta-form input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(47,123,255,.25); }
.cta-form input:invalid:not(:placeholder-shown) { border-color: #ff5c5c; }
.cta-note { margin-top: 16px; font-size: 14px; min-height: 22px; color: var(--blue-light); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); background: var(--bg); padding: 64px 0 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 48px; flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 16px; max-width: 420px; }
.footer-brand .brand-logo { height: 42px; }
.footer-brand:hover .brand-logo { transform: scale(1.04); }
.footer-brand p { font-size: 13.5px; color: var(--text-dim); }
.footer-cols { display: flex; gap: 72px; flex-wrap: wrap; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.footer-col a { font-size: 13.5px; color: var(--text-dim); width: fit-content; transition: color .2s ease, transform .2s ease; }
.footer-col a:hover { color: var(--blue-light); transform: translateX(3px); }
.footer-bottom {
  margin-top: 56px; padding-top: 20px; padding-bottom: 24px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-size: 12.5px; color: rgba(154,165,189,.7);
}

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .feature-grid, .show-grid { grid-template-columns: repeat(2, 1fr); }
  .char-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { flex-direction: column; }
  .step-arrow { transform: rotate(90deg); margin: -6px auto; }
  .editor-body { grid-template-columns: 1fr; }
  .editor-left, .editor-right { display: none; }
  .fine-grid { grid-template-columns: repeat(2, 1fr); }
  .ent-grid { grid-template-columns: 1fr; gap: 44px; }
  .ent-right { border-left: 0; padding-left: 0; border-top: 1px solid var(--border); padding-top: 36px; }
  .ent-word { margin-top: 44px; font-size: 68px; }
  .ent-logos-scroller { padding-top: 56px; }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: flex; }
  .section { padding: 72px 0; }
  .hero { padding: 36px 0 64px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .feature-grid, .show-grid, .char-grid, .char-points { grid-template-columns: 1fr; }
  .fine-grid { grid-template-columns: 1fr; }
  .studio-tabs { gap: 28px; }
  .ent-lead { font-size: 21px; }
  .ent-word { font-size: 52px; }
  .ent-logos { gap: 26px; }
  .ent-logos-scroller { padding-top: 44px; }
  .footer-cols { gap: 40px; }
  .footer-bottom { flex-direction: column; }
  /* 触屏回退：遮罩文案常驻显示 */
  .char-overlay, .show-overlay { opacity: 1; transform: none; }
  .char-overlay p, .char-cta { transform: none; }
  .show-play { display: none; }
}