/* AiMoCap 官网：深色科技风格 */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --primary: #6C5CE7;
  --primary-dark: #5A4BD1;
  --primary-light: #A29BFE;
  --accent: #FD79A8;
  --bg-dark: #0F0E17;
  --bg-card: #1A1925;
  --bg-card-hover: #22213A;
  --text-primary: #FFFFFE;
  --text-secondary: #A7A9BE;
  --text-muted: #85879A;
  --border: rgba(255,255,255,.09);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow: 0 16px 48px rgba(0,0,0,.32);
  --transition: .3s cubic-bezier(.4,0,.2,1);
}
html { scroll-behavior: smooth; scroll-padding-top: 88px; -webkit-text-size-adjust: 100%; }
body { font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif; background: var(--bg-dark); color: var(--text-primary); line-height: 1.65; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.navbar { position: fixed; inset: 0 0 auto; z-index: 1000; background: rgba(15,14,23,.86); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); transition: box-shadow var(--transition); }
.navbar-inner { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 750; letter-spacing: -.4px; white-space: nowrap; }
.logo-img { height: 34px; width: auto; max-width: 52px; flex-shrink: 0; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: clamp(16px,2.5vw,32px); }
.nav-links a { position: relative; color: var(--text-secondary); font-size: 14px; transition: color var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); }
.nav-links a.active::after { content: ""; position: absolute; bottom: -9px; left: 0; right: 0; height: 2px; border-radius: 2px; background: linear-gradient(90deg,var(--primary),var(--accent)); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 11px 22px; border: 1px solid transparent; border-radius: var(--radius-sm); font-size: 14px; font-weight: 650; text-align: center; white-space: nowrap; transition: transform var(--transition),background var(--transition),border-color var(--transition),box-shadow var(--transition); }
.btn-primary { background: linear-gradient(135deg,var(--primary),#8068F0); color: #fff; box-shadow: 0 8px 24px rgba(108,92,231,.18); }
.btn-primary:hover { background: linear-gradient(135deg,var(--primary-dark),var(--primary)); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(108,92,231,.32); }
.btn-outline { border-color: var(--border); color: var(--text-secondary); background: rgba(255,255,255,.015); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary-light); }
.btn-lg { padding: 14px 28px; border-radius: 12px; font-size: 15px; }
.hamburger { display: none; flex-direction: column; gap: 5px; width: 34px; padding: 6px 3px; border: 0; background: transparent; }
.hamburger span { display: block; height: 2px; width: 100%; background: var(--text-primary); border-radius: 2px; transition: transform var(--transition),opacity var(--transition); }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.hero { position: relative; isolation: isolate; overflow: hidden; padding: 148px 0 82px; }
.hero-glow { position: absolute; z-index: -1; pointer-events: none; border-radius: 50%; filter: blur(2px); }
.hero-glow-one { top: -260px; left: 50%; width: 800px; height: 800px; transform: translateX(-50%); background: radial-gradient(circle,rgba(108,92,231,.2),transparent 68%); }
.hero-glow-two { top: 320px; right: -260px; width: 500px; height: 500px; background: radial-gradient(circle,rgba(253,121,168,.08),transparent 70%); }
.hero-content { position: relative; z-index: 1; max-width: 900px; margin: 0 auto; text-align: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 24px; padding: 7px 15px; border: 1px solid rgba(108,92,231,.32); border-radius: 100px; background: rgba(108,92,231,.13); color: var(--primary-light); font-size: 13px; }
.dot { width: 7px; height: 7px; flex: 0 0 auto; border-radius: 50%; background: #00D3A7; box-shadow: 0 0 12px rgba(0,211,167,.55); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }
.hero h1 { font-size: clamp(34px,5.1vw,60px); font-weight: 800; line-height: 1.22; letter-spacing: -1.4px; margin-bottom: 22px; }
.gradient { background: linear-gradient(110deg,#B4A8FF 8%,#FD9BC0 92%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-content > p:not(.hero-note) { max-width: 760px; margin: 0 auto 30px; color: var(--text-secondary); font-size: clamp(15px,1.7vw,18px); }
.hero-actions { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 14px; }
.hero-note { margin-top: 15px; color: var(--text-muted); font-size: 12px; }
.hero-preview { position: relative; z-index: 1; max-width: 960px; margin: 60px auto 0; }
.preview-label,.preview-caption { display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--text-muted); font-size: 11px; letter-spacing: 1.2px; }
.preview-label { margin: 0 4px 12px; }
.preview-dot { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: var(--accent); }
.screen { position: relative; width: 100%; aspect-ratio: 16/9; overflow: hidden; border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius-lg); background: #0a0912; box-shadow: 0 25px 80px rgba(0,0,0,.38),0 0 60px rgba(108,92,231,.09); }
.hero-video { display: block; width: 100%; height: 100%; object-fit: cover; background: #0a0912; }
.preview-caption { margin: 12px 4px 0; font-size: 10px; }
.section { position: relative; padding: 38px 0; }
.section-header { max-width: 720px; margin: 0 auto 46px; text-align: center; }
.eyebrow { display: inline-block; margin-bottom: 12px; color: var(--primary-light); font-size: 11px; font-weight: 700; letter-spacing: 2px; }
.section-header h2,.start-copy h2 { font-size: clamp(28px,3.7vw,42px); line-height: 1.25; letter-spacing: -.7px; margin-bottom: 14px; }
.section-header p { color: var(--text-secondary); font-size: 15px; }
.features-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 22px; }
.feature-card { position: relative; min-height: 235px; overflow: hidden; padding: 32px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: linear-gradient(145deg,rgba(255,255,255,.025),transparent 70%),var(--bg-card); transition: background var(--transition),border-color var(--transition),transform var(--transition); }
.feature-card::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 3px; opacity: 0; background: linear-gradient(90deg,var(--primary),var(--accent)); transition: opacity var(--transition); }
.feature-card:hover { transform: translateY(-4px); border-color: rgba(108,92,231,.4); background-color: var(--bg-card-hover); }
.feature-card:hover::before { opacity: 1; }
.feature-icon { display: grid; place-items: center; width: 48px; height: 48px; margin-bottom: 20px; border: 1px solid rgba(162,155,254,.12); border-radius: 14px; background: rgba(108,92,231,.16); font-size: 22px; }
.feature-card h3 { margin-bottom: 10px; font-size: 19px; font-weight: 700; }
.feature-card p { max-width: 520px; color: var(--text-secondary); font-size: 14px; line-height: 1.8; }
.card-index { position: absolute; top: 24px; right: 26px; color: rgba(255,255,255,.14); font-size: 22px; font-weight: 800; letter-spacing: 1px; }
.scenarios-section { background: linear-gradient(180deg,transparent,rgba(108,92,231,.035),transparent); }
.scenarios-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.scenario-item { height: 100%; padding: 0; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(26,25,37,.8); text-align: left; transition: transform var(--transition),border-color var(--transition),background var(--transition); }
.scenario-image { display: block; width: 100%; height: 170px; object-fit: cover; background: #17152a; border-bottom: 1px solid rgba(255,255,255,.07); transition: transform .45s ease, filter .45s ease; }
.scenario-item:hover .scenario-image { transform: scale(1.035); filter: saturate(1.08); }
.scenario-content { padding: 22px 22px 24px; }
.scenario-item:hover { transform: translateY(-3px); border-color: rgba(108,92,231,.38); background: var(--bg-card-hover); }
.scenario-item .emoji { display: grid; place-items: center; width: 48px; height: 48px; margin-bottom: 18px; border-radius: 14px; background: rgba(108,92,231,.13); font-size: 26px; }
.scenario-item h3 { margin-bottom: 8px; font-size: 17px; }
.scenario-item p { color: var(--text-muted); font-size: 13px; line-height: 1.8; }
.workflow-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px; }
.workflow-step { padding: 25px 21px; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-card); }
.step-number { display: inline-block; margin-bottom: 24px; color: var(--primary-light); font-size: 13px; font-weight: 800; letter-spacing: 1.5px; }
.workflow-step h3 { margin-bottom: 9px; font-size: 16px; }
.workflow-step p { color: var(--text-secondary); font-size: 13px; line-height: 1.8; }
.start-section { padding-top: 40px; }
.start-card { display: flex; align-items: center; justify-content: space-between; gap: 36px; padding: clamp(28px,5vw,54px); border: 1px solid rgba(162,155,254,.2); border-radius: var(--radius-lg); background: radial-gradient(circle at 100% 0,rgba(253,121,168,.1),transparent 36%),linear-gradient(120deg,rgba(108,92,231,.16),rgba(26,25,37,.95) 62%); box-shadow: var(--shadow); }
.start-copy { max-width: 680px; }
.start-copy p { margin: 14px 0 20px; color: var(--text-secondary); font-size: 14px; }
.start-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; color: var(--text-muted); font-size: 12px; }
.start-card > .btn { flex-shrink: 0; }
.footer { padding: 58px 0 28px; border-top: 1px solid var(--border); background: rgba(0,0,0,.1); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.2fr 1fr; gap: 34px; margin-bottom: 42px; }
.footer-brand p { max-width: 300px; margin-top: 14px; color: var(--text-muted); font-size: 13px; line-height: 1.8; }
.footer-col h2 { margin-bottom: 15px; color: var(--text-primary); font-size: 14px; font-weight: 700; }
.footer-col li { margin-bottom: 10px; }
.footer-col li a { color: var(--text-muted); font-size: 13px; transition: color var(--transition); }
.footer-col li a:hover { color: var(--primary-light); }
.logo-2wm { width: 300px; max-width: 100%; height: auto; object-fit: contain; border-radius: 8px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 22px; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 12px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { display: grid; place-items: center; min-width: 36px; height: 34px; padding: 0 8px; border: 1px solid var(--border); border-radius: 9px; font-size: 12px; transition: border-color var(--transition),color var(--transition); }
.footer-social a:hover { border-color: var(--primary); color: var(--primary-light); }
.mobile-menu { position: fixed; top: 72px; left: 0; right: 0; z-index: 999; padding: 12px 24px 22px; border-bottom: 1px solid var(--border); background: rgba(15,14,23,.98); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); transform: translateY(-8px); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity var(--transition),transform var(--transition),visibility var(--transition); }
.mobile-menu.open { transform: translateY(0); opacity: 1; visibility: visible; pointer-events: auto; }
.mobile-menu a { display: block; padding: 13px 0; border-bottom: 1px solid var(--border); color: var(--text-secondary); font-size: 15px; }
.mobile-menu a:hover { color: var(--text-primary); }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease,transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
@media (max-width: 1024px) {
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 13px; }
  .workflow-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .footer-grid { grid-template-columns: 1.5fr 1fr; }
}
@media (max-width: 768px) {
  .navbar-inner { min-height: 64px; }
  .nav-links,.nav-actions .nav-cta { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { top: 64px; }
  .hero { padding: 116px 0 58px; }
  .hero h1 { letter-spacing: -.8px; }
  .hero-preview { margin-top: 42px; }
  .section { padding: 64px 0; }
  .section-header { margin-bottom: 30px; }
  .features-grid { grid-template-columns: 1fr; gap: 15px; }
  .feature-card { min-height: 0; padding: 27px 24px; }
  .scenarios-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 13px; }
  .scenario-image { height: 145px; }
  .scenario-content { padding: 20px 18px 22px; }
  .start-card { align-items: flex-start; flex-direction: column; gap: 24px; }
  .start-card > .btn { width: 100%; white-space: normal; }
  .footer-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 28px 22px; }
}
@media (max-width: 480px) {
  .container { padding: 0 17px; }
  .logo { font-size: 18px; }
  .logo-img { height: 30px; }
  .hero { padding-top: 106px; }
  .hero-badge { max-width: 100%; padding: 7px 11px; font-size: 11px; }
  .hero h1 { font-size: clamp(30px,8.4vw,39px); }
  .hero-content > p:not(.hero-note) { font-size: 14px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .screen { border-radius: 13px; }
  .preview-caption { font-size: 8px; letter-spacing: .5px; }
  .section { padding: 33px 0; }
  .section-header h2,.start-copy h2 { font-size: 28px; }
  .section-header p { font-size: 14px; }
  .scenarios-grid { grid-template-columns: 1fr; }
  .scenario-image { height: 190px; }
  .scenario-content { padding: 21px 21px 23px; }
  .scenario-item .emoji { width: 44px; height: 44px; font-size: 24px; }
  .workflow-grid { grid-template-columns: 1fr; }
  .workflow-step { padding: 22px; }
  .step-number { margin-bottom: 12px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* 微信/移动浏览器视频播放失败时的视觉兜底 */
.video-fallback { position: absolute; inset: 0; z-index: 2; display: grid; place-items: center; overflow: hidden; background: radial-gradient(ellipse at 50% 45%, rgba(108,92,231,.25), transparent 48%), linear-gradient(135deg,#100f1d,#090811 70%); }
.video-fallback[hidden] { display: none !important; }
.fallback-content { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 20px; text-align: center; }
.fallback-mark { color: #c1b8ff; font-size: clamp(34px,6vw,64px); line-height: 1.1; text-shadow: 0 0 28px rgba(162,155,254,.55); }
.fallback-content strong { font-size: clamp(20px,3vw,32px); letter-spacing: .5px; }
.fallback-caption { color: #a29bfe; font-size: 10px; letter-spacing: 2px; }
.fallback-message { margin-top: 9px; color: #b7b3ca; font-size: 12px; }
.video-retry { margin-top: 9px; padding: 10px 18px; border: 1px solid rgba(255,255,255,.18); border-radius: 10px; color: #fff; background: linear-gradient(135deg,#6c5ce7,#8068f0); font-size: 13px; }
.video-retry:hover { filter: brightness(1.08); }
.fallback-orbit { position: absolute; left: 50%; top: 50%; border: 1px solid rgba(162,155,254,.18); border-radius: 50%; transform: translate(-50%,-50%); pointer-events: none; }
.fallback-orbit-one { width: 45%; aspect-ratio: 1; }
.fallback-orbit-two { width: 70%; aspect-ratio: 1; border-color: rgba(253,121,168,.1); }
@media (max-width: 480px) { .fallback-message { max-width: 230px; font-size: 11px; } .video-retry { padding: 9px 14px; } }




/* AiMoCap 在线状态灯：持续呼吸闪烁 */
.hero-badge .status-dot {
  display: inline-block !important;
  width: 8px !important;
  height: 8px !important;
  min-width: 8px;
  min-height: 8px;
  flex: 0 0 8px;
  margin-right: -3px;
  border-radius: 50%;
  background: #22e879 !important;
  opacity: 1;
  box-shadow: 0 0 8px rgba(34, 232, 121, .8);
  animation: aiMoCapStatusPulse 1.2s ease-in-out infinite !important;
}

@keyframes aiMoCapStatusPulse {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 8px rgba(34, 232, 121, .8);
  }
  50% {
    opacity: .2;
    box-shadow: 0 0 16px rgba(34, 232, 121, .25);
  }
}

/* AiMoCap 下载区 */
  .test-link {
    display: inline-block;
    text-decoration: none;
    transition: color 0.3s ease, transform 0.3s ease;
  }

  .test-link:hover {
    color: #ff6600;
    transform: scale(1.15);
  }