:root {
    --brand: #4f5bff;
    --brand-2: #8b5cf6;
    --grad: linear-gradient(120deg, #4f5bff 0%, #7b61ff 55%, #a855f7 100%);
    --ink: #0f172a;
    --ink-2: #334155;
    --muted: #64748b;
    --line: #e5e8f2;
    --bg: #ffffff;
    --bg-soft: #f5f7ff;
    --card: #ffffff;
    --ok: #10b981;
    --radius: 16px;
    --shadow: 0 10px 30px rgba(40, 52, 120, .08);
    --shadow-lg: 0 24px 60px rgba(40, 52, 120, .14);
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0; background: var(--bg); color: var(--ink);
    font: 16px/1.7 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
  }
  html[lang="en"] body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
  html[lang="en"] .hero h1 { letter-spacing: -.5px; }
  .lang { font-size: 14px; font-weight: 600; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; margin-left: auto; white-space: nowrap; flex: none; }
  .logo { white-space: nowrap; flex: none; }
  .lang:hover { color: var(--brand); border-color: #cfd4ff; }
  a { color: inherit; text-decoration: none; }
  .wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
  .grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

  /* 按钮 */
  .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 46px; padding: 0 26px;
         border-radius: 999px; font-size: 16px; font-weight: 600; cursor: pointer; border: 0; transition: transform .15s, box-shadow .15s, background .15s; white-space: nowrap; }
  .btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 22px rgba(79, 91, 255, .35); }
  .btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(79, 91, 255, .42); }
  .btn-ghost { background: #fff; color: var(--brand); border: 1px solid #cfd4ff; }
  .btn-ghost:hover { background: var(--bg-soft); }

  /* 顶栏 */
  header.nav { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.86); backdrop-filter: saturate(160%) blur(12px);
               -webkit-backdrop-filter: saturate(160%) blur(12px); border-bottom: 1px solid transparent; transition: border-color .2s; }
  header.nav.scrolled { border-bottom-color: var(--line); }
  .nav-in { display: flex; align-items: center; height: 68px; gap: 40px; }
  .logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; letter-spacing: .5px; }
  .logo-sub { font-size: 14px; font-weight: 500; color: var(--muted); margin-left: 6px; letter-spacing: 1px; }
  .logo-mark { width: 34px; height: 34px; border-radius: 10px; background: var(--grad); display: grid; place-items: center; box-shadow: 0 6px 14px rgba(79,91,255,.3); }
  .nav-links { display: flex; gap: 32px; font-size: 15px; color: var(--ink-2); }
  .nav-links a:hover { color: var(--brand); }
  .nav .btn { height: 40px; padding: 0 20px; font-size: 15px; }

  /* 首屏 */
  .hero { position: relative; overflow: hidden; padding: 84px 0 72px;
          background: radial-gradient(900px 420px at 15% -10%, #e9ecff 0%, rgba(233,236,255,0) 70%),
                      radial-gradient(800px 480px at 95% 10%, #f3e8ff 0%, rgba(243,232,255,0) 65%), #fff; }
  .hero-in { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
  .eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; background: #eef0ff;
             color: var(--brand); font-size: 14px; font-weight: 600; }
  .eyebrow i { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(16,185,129,.18); }
  .hero h1 { font-size: 52px; line-height: 1.22; margin: 20px 0 18px; letter-spacing: 1px; font-weight: 800; }
  .hero p.lead { font-size: 18px; color: var(--ink-2); margin: 0 0 32px; max-width: 34em; }
  .hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
  .hero-points { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 30px; color: var(--muted); font-size: 14px; }
  .hero-points span { display: inline-flex; align-items: center; gap: 6px; }
  .hero-points svg { flex: none; }

  /* 首屏示意：对话窗 */
  .demo { position: relative; }
  .chat { background: var(--card); border-radius: 20px; box-shadow: var(--shadow-lg); border: 1px solid var(--line); overflow: hidden; }
  .chat-top { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--line); background: #fbfcff; }
  .avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--grad); display: grid; place-items: center; color: #fff; font-size: 13px; font-weight: 700; flex: none; }
  .chat-top b { font-size: 15px; }
  .chat-top small { display: block; color: var(--ok); font-size: 12px; line-height: 1.3; }
  .chat-top .tag { margin-left: auto; font-size: 12px; color: var(--muted); background: #f1f3f9; padding: 3px 10px; border-radius: 999px; }
  .msgs { padding: 18px; display: flex; flex-direction: column; gap: 12px; background: #fff; }
  .msg { max-width: 82%; padding: 10px 14px; border-radius: 14px; font-size: 14px; line-height: 1.6; }
  .msg.user { align-self: flex-end; background: #eef0ff; color: var(--ink); border-bottom-right-radius: 4px; }
  .msg.ai { align-self: flex-start; background: #f6f7fb; color: var(--ink-2); border-bottom-left-radius: 4px; }
  .divider { align-self: center; font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
  .divider::before, .divider::after { content: ""; width: 36px; height: 1px; background: var(--line); }
  .msg.follow { align-self: flex-start; background: linear-gradient(120deg, #f0f1ff, #f6efff); color: var(--ink); border: 1px solid #dcd9ff; border-bottom-left-radius: 4px; }
  .msg.follow em { display: block; font-style: normal; font-size: 12px; color: var(--brand); font-weight: 600; margin-bottom: 2px; }
  .float-card { position: absolute; background: #fff; border-radius: 14px; box-shadow: var(--shadow-lg); border: 1px solid var(--line); padding: 12px 14px; font-size: 13px; }
  .float-card.fc1 { right: -18px; top: -22px; display: flex; align-items: center; gap: 10px; }
  .float-card.fc2 { left: -30px; bottom: -30px; width: 210px; }
  .fc1 .dot { width: 30px; height: 30px; border-radius: 9px; background: #e7fbf3; display: grid; place-items: center; }
  .fc2 .row { display: flex; justify-content: space-between; color: var(--muted); padding: 3px 0; }
  .fc2 .row b { color: var(--ink); font-weight: 600; }
  .fc2 .title { font-weight: 600; margin-bottom: 4px; color: var(--ink); }
  .demo-note { text-align: right; color: #94a3b8; font-size: 12px; margin-top: 14px; }

  /* 通用区块 */
  section { padding: 88px 0; }
  .sec-head { text-align: center; max-width: 760px; margin: 0 auto 52px; }
  .sec-head h2 { font-size: 36px; line-height: 1.3; margin: 0 0 14px; font-weight: 800; letter-spacing: .5px; }
  .sec-head p { margin: 0; color: var(--muted); font-size: 17px; }
  .soft { background: var(--bg-soft); }

  /* 价值条 */
  .strip { padding: 0; margin-top: -28px; position: relative; z-index: 2; }
  .strip-in { display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; border-radius: 18px; box-shadow: var(--shadow); border: 1px solid var(--line); }
  .strip-item { padding: 24px 26px; display: flex; gap: 14px; align-items: flex-start; }
  .strip-item + .strip-item { border-left: 1px solid var(--line); }
  .strip-item b { display: block; font-size: 17px; margin-bottom: 2px; }
  .strip-item span { color: var(--muted); font-size: 14px; line-height: 1.6; }
  .ic { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; flex: none; background: #eef0ff; color: var(--brand); }

  /* 核心能力 */
  .features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .feature { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; transition: box-shadow .2s, transform .2s, border-color .2s; }
  .feature:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); border-color: #d9dcff; }
  .feature .ic { width: 50px; height: 50px; border-radius: 14px; background: var(--grad); color: #fff; margin-bottom: 18px; }
  .feature h3 { margin: 0 0 8px; font-size: 21px; }
  .feature > p { margin: 0 0 16px; color: var(--muted); }
  .feature ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
  .feature li { position: relative; padding-left: 24px; color: var(--ink-2); font-size: 15px; }
  .feature li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 12px; height: 7px; border-left: 2px solid var(--brand); border-bottom: 2px solid var(--brand); transform: rotate(-45deg); }

  /* 对比 */
  .compare { max-width: 980px; margin: 0 auto; background: #fff; border-radius: 18px; border: 1px solid var(--line); overflow: hidden; box-shadow: var(--shadow); }
  .cmp-row { display: grid; grid-template-columns: 1.1fr 1.4fr 1.6fr; }
  .cmp-row > div { padding: 18px 24px; border-top: 1px solid var(--line); font-size: 15px; }
  .cmp-row.head > div { border-top: 0; font-weight: 700; background: #fafbff; }
  .cmp-row.head > div:last-child { background: var(--grad); color: #fff; }
  .cmp-row > div:first-child { font-weight: 600; color: var(--ink); }
  .cmp-row > div:nth-child(2) { color: var(--muted); }
  .cmp-row > div:last-child { color: var(--ink); background: #f8f7ff; }
  .cmp-row:not(.head) > div:last-child::before { content: "✓"; color: var(--brand); font-weight: 700; margin-right: 8px; }

  /* 行业方案 */
  .tabs { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
  .tab { height: 42px; padding: 0 22px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-size: 15px; color: var(--ink-2); cursor: pointer; font-family: inherit; }
  .tab:hover { border-color: #c9ceff; color: var(--brand); }
  .tab[aria-selected="true"] { background: var(--grad); color: #fff; border-color: transparent; box-shadow: 0 6px 16px rgba(79,91,255,.3); }
  .panel { display: none; background: #fff; border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); padding: 40px; }
  .panel.active { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
  .panel h3 { margin: 0 0 10px; font-size: 24px; }
  .panel > div > p { color: var(--muted); margin: 0 0 22px; }
  .scenes { display: grid; gap: 12px; }
  .scene { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-radius: 12px; background: var(--bg-soft); }
  .scene b { display: block; font-size: 15px; }
  .scene span { color: var(--muted); font-size: 14px; }
  .scene .n { width: 26px; height: 26px; border-radius: 8px; background: #fff; color: var(--brand); font-weight: 700; font-size: 13px; display: grid; place-items: center; flex: none; border: 1px solid #dfe2ff; }
  .timeline { border-left: 2px dashed #d6d9ff; margin-left: 8px; padding-left: 24px; display: grid; gap: 18px; }
  .tl { position: relative; }
  .tl::before { content: ""; position: absolute; left: -32px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: #fff; border: 3px solid var(--brand); }
  .tl small { color: var(--brand); font-weight: 600; font-size: 13px; }
  .tl p { margin: 2px 0 0; color: var(--ink-2); font-size: 15px; }
  .tl-title { font-weight: 700; margin-bottom: 14px; }

  /* 流程 */
  .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
  .step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; }
  .step::before { counter-increment: s; content: "0" counter(s); font-size: 38px; font-weight: 800; line-height: 1; background: var(--grad);
                  -webkit-background-clip: text; background-clip: text; color: transparent; display: block; margin-bottom: 14px; }
  .step h4 { margin: 0 0 6px; font-size: 18px; }
  .step p { margin: 0; color: var(--muted); font-size: 15px; }
  .step:not(:last-child)::after { content: ""; position: absolute; right: -14px; top: 46px; width: 8px; height: 8px; border-top: 2px solid #c3c8ff; border-right: 2px solid #c3c8ff; transform: rotate(45deg); }

  /* 常见问题 */
  .faq { max-width: 860px; margin: 0 auto; display: grid; gap: 12px; }
  .faq details { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 0 22px; }
  .faq summary { cursor: pointer; list-style: none; padding: 18px 0; font-weight: 600; display: flex; justify-content: space-between; gap: 16px; }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary::after { content: "+"; color: var(--brand); font-size: 22px; line-height: 1; transition: transform .2s; }
  .faq details[open] summary::after { transform: rotate(45deg); }
  .faq details p { margin: 0 0 18px; color: var(--ink-2); }

  /* 留资 */
  .lead-sec { background: radial-gradient(700px 360px at 10% 0%, rgba(255,255,255,.18), transparent 70%), var(--grad); color: #fff; }
  .lead-in { display: grid; grid-template-columns: 1fr 460px; gap: 56px; align-items: center; }
  .lead-in h2 { font-size: 38px; line-height: 1.3; margin: 0 0 16px; font-weight: 800; }
  .lead-in > div > p { font-size: 17px; opacity: .92; margin: 0 0 26px; }
  .gets { display: grid; gap: 12px; }
  .gets div { display: flex; gap: 10px; align-items: center; font-size: 16px; }
  .gets i { width: 22px; height: 22px; border-radius: 50%; background: rgba(255,255,255,.22); display: grid; place-items: center; font-style: normal; font-size: 12px; flex: none; }
  .form-card { background: #fff; color: var(--ink); border-radius: 20px; padding: 32px; box-shadow: 0 30px 70px rgba(20, 20, 80, .3); }
  .form-card h3 { margin: 0 0 4px; font-size: 22px; }
  .form-card > p { margin: 0 0 22px; color: var(--muted); font-size: 14px; }
  .field { margin-bottom: 16px; }
  .field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
  .field label small { color: var(--muted); font-weight: 400; }
  .field input, .field select { width: 100%; height: 46px; border: 1px solid #d8dcea; border-radius: 10px; padding: 0 14px; font-size: 16px; font-family: inherit; color: var(--ink); background: #fff; outline: none; transition: border-color .15s, box-shadow .15s; }
  .field input:focus, .field select:focus { border-color: var(--brand); box-shadow: 0 0 0 4px rgba(79,91,255,.12); }
  .field.err input { border-color: #ef4444; }
  .field .msg-err { color: #ef4444; font-size: 13px; margin-top: 4px; display: none; }
  .field.err .msg-err { display: block; }
  .consent { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; color: var(--muted); margin: 4px 0 18px; line-height: 1.6; }
  .consent input { margin-top: 3px; width: 16px; height: 16px; flex: none; accent-color: var(--brand); }
  .consent a { color: var(--brand); }
  .consent.err { color: #ef4444; }
  .form-card .btn { width: 100%; height: 50px; font-size: 17px; }
  .form-card .btn[disabled] { opacity: .65; cursor: default; transform: none; }
  .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
  .form-tip { text-align: center; font-size: 13px; color: var(--muted); margin-top: 12px; min-height: 20px; }
  .form-tip.bad { color: #ef4444; }
  .done { text-align: center; padding: 36px 8px; display: none; }
  .done .okc { width: 64px; height: 64px; border-radius: 50%; background: #e7fbf3; display: grid; place-items: center; margin: 0 auto 16px; }
  .done h3 { margin: 0 0 8px; }
  .done p { color: var(--muted); margin: 0; }

  footer { padding: 32px 0; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }
  .foot-in { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
  footer a:hover { color: var(--brand); }

  /* 右侧悬浮 & 手机底栏 */
  .side-cta { position: fixed; right: 20px; bottom: 28%; z-index: 40; display: flex; flex-direction: column; align-items: center; gap: 6px;
              background: var(--grad); color: #fff; width: 64px; padding: 14px 0; border-radius: 16px; font-size: 13px; font-weight: 600;
              box-shadow: 0 12px 26px rgba(79,91,255,.4); writing-mode: horizontal-tb; }
  .side-cta:hover { transform: translateY(-2px); }
  .side-cta, .mbar { transition: opacity .2s; }
  .side-cta.hide, .mbar.hide { opacity: 0; pointer-events: none; }
  .mbar { display: none; }

  /* 进场动画 */
  html.js .rv { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
  html.js .rv.in { opacity: 1; transform: none; }
  @media (prefers-reduced-motion: reduce) { html.js .rv { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

  /* 响应式 */
  @media (max-width: 1024px) {
    .hero-in, .lead-in { grid-template-columns: 1fr; }
    .demo { max-width: 520px; margin: 0 auto; width: 100%; }
    .strip-in { grid-template-columns: repeat(2, 1fr); }
    .strip-item:nth-child(3) { border-left: 0; }
    .strip-item:nth-child(n+3) { border-top: 1px solid var(--line); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .step::after { display: none; }
    .lead-in .form-card { max-width: 520px; width: 100%; }
  }
  @media (max-width: 760px) {
    .wrap { padding: 0 16px; }
    .nav-links { display: none; }
    .nav-in { height: 60px; gap: 12px; }
    .nav .btn { padding: 0 14px; font-size: 14px; }
    .lang { padding: 3px 10px; font-size: 13px; }
    .hero { padding: 48px 0 56px; }
    .hero h1 { font-size: 34px; }
    .hero p.lead { font-size: 16px; }
    .hero-cta .btn { flex: 1 1 auto; }
    .float-card, .float-card.fc1 { display: none; }
    .demo-note { text-align: center; }
    section { padding: 60px 0; }
    .sec-head { margin-bottom: 34px; }
    .sec-head h2 { font-size: 27px; }
    .sec-head p { font-size: 15px; }
    .strip { margin-top: -20px; }
    .strip-in { grid-template-columns: 1fr; }
    .strip-item + .strip-item { border-left: 0; border-top: 1px solid var(--line); }
    .features { grid-template-columns: 1fr; }
    .feature { padding: 24px; }
    .cmp-row { grid-template-columns: 1fr; }
    .cmp-row.head { display: none; }
    .cmp-row > div { border-top: 0; padding: 4px 18px; }
    .cmp-row > div:first-child { padding-top: 16px; border-top: 1px solid var(--line); }
    .cmp-row:first-of-type > div:first-child { border-top: 0; }
    .cmp-row > div:nth-child(2)::before { content: var(--cmp-label, "普通机器人："); color: #94a3b8; }
    .cmp-row > div:last-child { background: none; padding-bottom: 16px; }
    .tabs { justify-content: flex-start; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 6px; scrollbar-width: none; }
    .tabs::-webkit-scrollbar { display: none; }
    .tab { flex: none; }
    .panel { padding: 22px; }
    .panel.active { grid-template-columns: 1fr; gap: 26px; }
    .steps { grid-template-columns: 1fr; }
    .lead-in h2 { font-size: 28px; }
    .form-card { padding: 24px 20px; }
    .side-cta { display: none; }
    .mbar { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
            background: rgba(255,255,255,.95); border-top: 1px solid var(--line); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
    .mbar .btn { width: 100%; }
    body { padding-bottom: 72px; }
  }
  @media (max-width: 420px) { .logo-sub { display: none; } }

  /* 品牌字标：小写 ing + “正在输入”的三个点，表达进行时 */
  .wordmark { font-weight: 800; font-size: 24px; letter-spacing: .3px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .wm { display: inline-flex; align-items: flex-end; }
  .typing { display: inline-flex; gap: 3px; margin-left: 3px; padding-bottom: 9px; }
  .typing i { width: 5px; height: 5px; border-radius: 50%; background: var(--brand-2); opacity: .25; animation: typing 1.4s infinite; }
  .typing i:nth-child(2) { animation-delay: .2s; }
  .typing i:nth-child(3) { animation-delay: .4s; }
  @keyframes typing { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }

  /* 为什么叫 ing */
  .name-sec { padding: 72px 0 0; }
  .name-card { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center;
               background: linear-gradient(135deg, #ffffff 40%, #f6f4ff 100%); border: 1px solid var(--line); border-radius: 24px; padding: 44px 48px; box-shadow: var(--shadow); }
  .name-big { font-size: 64px; font-weight: 900; line-height: 1.2; padding-bottom: .06em; letter-spacing: -1px; margin-bottom: 4px; display: inline-block; }
  .name-card h2 { font-size: 26px; margin: 0 0 10px; }
  .name-card p { color: var(--ink-2); margin: 0; }
  .ing-list { display: grid; gap: 12px; }
  .ing-row { display: flex; align-items: baseline; gap: 16px; padding: 16px 20px; border-radius: 14px; background: var(--bg-soft); }
  .ing-row b { font-size: 22px; font-weight: 800; min-width: 7.2em; flex: none; }
  .ing-row b span { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .ing-row em { font-style: normal; color: var(--muted); }
  @media (prefers-reduced-motion: reduce) { .typing i { animation: none; opacity: .6; } }
  @media (max-width: 1024px) { .name-card { grid-template-columns: 1fr; gap: 28px; } }
  @media (max-width: 760px) {
    .name-sec { padding-top: 48px; }
    .name-card { padding: 26px 20px; border-radius: 18px; }
    .name-big { font-size: 48px; }
    .name-card h2 { font-size: 22px; }
    .ing-row { flex-direction: column; gap: 2px; padding: 12px 16px; }
    .ing-row b { font-size: 19px; min-width: 0; }
  }

  /* 首屏卖点条 */
  .hero-deal { display: inline-flex; align-items: center; gap: 4px; flex-wrap: wrap; margin-top: 22px; padding: 8px 16px; border-radius: 12px;
               background: #fff; border: 1px solid #e3e1ff; box-shadow: var(--shadow); font-size: 15px; color: var(--ink-2); }
  .hero-deal b { color: var(--brand); }
  .hero-deal sup { color: var(--muted); }
  .hero-deal span { color: var(--muted); font-size: 13px; margin-left: 6px; }
  .hero-deal:hover { border-color: #c9c4ff; }

  /* 一份工资，十人产能 */
  .value-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 28px; align-items: stretch; }
  .value-stats { display: grid; gap: 16px; }
  .vstat { display: flex; gap: 20px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; box-shadow: var(--shadow); }
  .vnum { font-size: 46px; font-weight: 900; line-height: 1.15; min-width: 2.6em; text-align: center; flex: none; }
  .vnum small { font-size: 18px; font-weight: 800; margin-left: 2px; }
  .vstat b { display: block; font-size: 18px; margin-bottom: 2px; }
  .vstat span { color: var(--muted); font-size: 15px; }
  .hub-card { margin: 0; display: flex; flex-direction: column; justify-content: center; border: 1px solid var(--line); border-radius: 20px;
              padding: 18px 18px 14px; box-shadow: var(--shadow); background: radial-gradient(420px 260px at 50% 45%, #f1efff, #fff 70%); }
  .hub-svg { width: 100%; height: auto; display: block; }
  .hub-svg .flow { stroke: #b9b3ff; stroke-width: 2; stroke-dasharray: 5 7; fill: none; animation: flow 1.4s linear infinite; }
  .hub-svg .node { fill: #fff; stroke: #e2e5f1; }
  .hub-svg .node-t { font-size: 16px; font-weight: 600; fill: #0f172a; }
  .hub-svg .ring { fill: none; stroke: #d9d4ff; stroke-width: 2; stroke-dasharray: 3 6; }
  .hub-svg .core-t { font-size: 26px; font-weight: 800; fill: #fff; }
  .hub-svg .core-s { font-size: 12px; fill: #eef0ff; }
  .hub-card figcaption { text-align: center; color: var(--muted); font-size: 14px; margin-top: 6px; }
  @keyframes flow { to { stroke-dashoffset: -24; } }
  .chart-card { margin-top: 24px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center; background: #fff;
                border: 1px solid var(--line); border-radius: 20px; padding: 28px 32px; box-shadow: var(--shadow); }
  .chart-text h3 { margin: 0 0 8px; font-size: 22px; }
  .chart-text p { margin: 0 0 14px; color: var(--ink-2); }
  .legend { display: grid; gap: 8px; font-size: 14px; color: var(--ink-2); margin-bottom: 10px; }
  .legend i { display: inline-block; width: 22px; height: 4px; border-radius: 2px; vertical-align: middle; margin-right: 8px; }
  .lg-h { background: #94a3b8; }
  .lg-i { background: var(--grad); }
  .chart-text small { color: #94a3b8; font-size: 12px; }
  .chart-svg { width: 100%; height: auto; display: block; }
  .chart-svg .grid { stroke: #eef0f6; stroke-dasharray: 4 6; }
  .chart-svg .axis { stroke: #cbd2e1; stroke-width: 1.5; }
  .chart-svg .human { stroke: #94a3b8; stroke-width: 3; }
  .chart-svg .ax { font-size: 15px; fill: #64748b; }
  .chart-svg .ax-t { font-size: 14px; fill: #94a3b8; }
  .chart-svg .lab { font-size: 16px; font-weight: 700; }
  .chart-svg .lab-h { fill: #64748b; }
  .chart-svg .lab-i { fill: #6d5dfc; }
  .footnote { color: #94a3b8; font-size: 13px; margin: 16px 0 0; line-height: 1.6; }

  /* 流程小插图 */
  .step-ic { position: absolute; right: 18px; top: 22px; width: 48px; height: 48px; border-radius: 14px; background: #f1f0ff; color: #6d5dfc; display: grid; place-items: center; }

  /* 表单：区号 + 手机号、行业自填 */
  .form-card form > p { margin: 0 0 22px; color: var(--muted); font-size: 14px; }
  .phone-row { display: flex; gap: 8px; }
  .field .phone-row select { flex: 0 0 136px; width: 136px; padding: 0 8px; }
  .field .phone-row input { flex: 1; min-width: 0; }
  .field .other-input { margin-top: 8px; }
  .field.err input, .field.err select { border-color: #ef4444; }

  @media (prefers-reduced-motion: reduce) { .hub-svg .flow, .typing i { animation: none; } }
  @media (max-width: 1024px) { .value-grid, .chart-card { grid-template-columns: 1fr; } }
  @media (max-width: 760px) {
    .hero-deal { font-size: 14px; }
    .vstat { padding: 16px 18px; gap: 14px; }
    .vnum { font-size: 36px; min-width: 2.2em; }
    .vstat b { font-size: 16px; }
    .vstat span { font-size: 14px; }
    .chart-card { padding: 20px 18px; gap: 16px; }
    .step-ic { width: 40px; height: 40px; border-radius: 12px; top: 20px; }
  }

  /* 首屏“跟进计划”卡片改为挂在对话框下方，不再挡住对话 */
  .float-card.fc2 { position: relative; left: auto; bottom: auto; margin: -16px 0 0 -26px; width: 230px; z-index: 2; }
  @media (max-width: 760px) {
    html[lang="zh-CN"] .hub-svg .node-t { font-size: 19px; }
    .chart-svg .ax { font-size: 22px; }
    .chart-svg .ax-t { font-size: 20px; }
    .chart-svg .lab { font-size: 22px; }
  }

  /* 真实照片（Unsplash 免费授权，存放在本站 assets/img） */
  .panel-photo { margin: 18px 0 0; border-radius: 14px; overflow: hidden; aspect-ratio: 16 / 9; background: #eef0f6; }
  .panel-photo img, .lead-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .lead-photo { margin: 28px 0 0; max-width: 460px; aspect-ratio: 16 / 9; border-radius: 16px; overflow: hidden;
                border: 4px solid rgba(255,255,255,.25); box-shadow: 0 20px 50px rgba(20, 20, 80, .35); background: rgba(255,255,255,.12); }
  @media (max-width: 760px) { .lead-photo { display: none; } .panel-photo { margin-top: 14px; } }

  /* 可接入平台：图标墙 */
  .apps-sec { padding-top: 40px; }
  .app-groups { display: grid; gap: 18px; }
  .app-group { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 20px 22px; box-shadow: var(--shadow); }
  .app-group h3 { margin: 0 0 14px; font-size: 16px; color: var(--ink-2); }
  .app-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
  .app { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 12px; background: var(--bg-soft); border: 1px solid transparent;
         transition: border-color .15s, background .15s; min-width: 0; }
  .app:hover { background: #fff; border-color: #dcdfff; }
  .app-ic { width: 36px; height: 36px; border-radius: 10px; background: #fff; display: grid; place-items: center; flex: none; box-shadow: 0 2px 6px rgba(40,52,120,.08); }
  .app-ic img { width: 22px; height: 22px; display: block; }
  .app-txt { font-size: 14px; font-weight: 800; color: #5b5bd6; background: #eef0ff; }
  .app-n { font-size: 14px; font-weight: 600; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

  /* 多账号插图下的图标跑马灯 */
  .marquee { overflow: hidden; margin: 8px 6px 2px; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
             mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
  .mq-track { display: flex; gap: 22px; width: max-content; animation: mq 32s linear infinite; padding: 6px 0; }
  .mq-track img { width: 24px; height: 24px; flex: none; opacity: .9; }
  @keyframes mq { to { transform: translateX(-50%); } }

  /* 成本曲线：人工随人数上升 */
  .chart-svg .human { stroke: #94a3b8; stroke-width: 3; stroke-linejoin: round; }
  .chart-svg .lab-gap { fill: #7b61ff; font-size: 15px; font-weight: 700; }
  .cost-rows { display: grid; gap: 8px; margin: 0 0 14px; }
  .cost-rows div { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 13px; }
  .cost-rows b { font-size: 13px; color: var(--ink-2); margin-right: 4px; }
  .cost-rows span { padding: 3px 10px; border-radius: 999px; background: #f1f3f9; color: var(--muted); }
  .cost-rows .ours span { background: #eef0ff; color: var(--brand); font-weight: 700; }

  /* 行业照片上的对话 */
  .panel-photo { position: relative; }
  .panel-photo::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 65%; background: linear-gradient(transparent, rgba(15, 23, 42, .5)); pointer-events: none; }
  .photo-chat { position: absolute; left: 14px; right: 14px; bottom: 14px; display: grid; gap: 6px; z-index: 1; }
  .pc-q, .pc-a { max-width: 82%; padding: 7px 12px; font-size: 13px; line-height: 1.5; box-shadow: 0 8px 20px rgba(0, 0, 0, .2); }
  .pc-q { justify-self: end; background: rgba(255, 255, 255, .96); color: var(--ink); border-radius: 12px 12px 4px 12px; }
  .pc-a { justify-self: start; background: var(--grad); color: #fff; border-radius: 12px 12px 12px 4px; }
  .pc-a b { display: block; font-size: 11px; font-weight: 600; opacity: .85; }

  @media (prefers-reduced-motion: reduce) { .mq-track { animation: none; } }
  @media (max-width: 760px) {
    .app-group { padding: 16px 14px; }
    .app-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
    .app { padding: 8px 10px; gap: 8px; }
    .app-ic { width: 32px; height: 32px; }
    .app-n { font-size: 13px; }
    .chart-svg .lab-gap { font-size: 20px; }
    .pc-q, .pc-a { font-size: 12px; padding: 6px 10px; }
    .photo-chat { left: 10px; right: 10px; bottom: 10px; }
  }
  /* 跑马灯内容很宽，别让它把网格列撑开 */
  .value-grid > *, .chart-card > * { min-width: 0; }
  .marquee { width: 100%; max-width: 100%; }
  /* 10 个行业标签：桌面上尽量一行放下 */
  @media (min-width: 761px) { .tabs { gap: 8px; } .tab { padding: 0 16px; font-size: 14.5px; } }

  /* 关于我们 */
  .about-sec { padding-top: 72px; }
  .about-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; }
  .about-text h2 { font-size: 34px; line-height: 1.3; margin: 0 0 18px; font-weight: 800; }
  .about-text p { color: var(--ink-2); margin: 0 0 14px; font-size: 16px; line-height: 1.9; }
  .commits { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
  .commits li { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: #eef0ff; color: var(--brand); font-size: 14px; font-weight: 600; }
  .commits i { font-style: normal; width: 18px; height: 18px; border-radius: 50%; background: var(--grad); color: #fff; display: grid; place-items: center; font-size: 11px; }
  .pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .pillar { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 6px; }
  .pillar .ic { width: 44px; height: 44px; border-radius: 12px; background: var(--grad); color: #fff; margin-bottom: 6px; }
  .pillar b { font-size: 17px; }
  .pillar > span:last-child { color: var(--muted); font-size: 14px; line-height: 1.7; }

  /* 每日工作日报 */
  .report-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
  .report-text h2 { font-size: 34px; line-height: 1.3; margin: 16px 0 14px; font-weight: 800; }
  .report-text > p { color: var(--ink-2); margin: 0 0 20px; }
  .rep-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
  .rep-list li { display: flex; gap: 14px; align-items: flex-start; }
  .rep-list .ic { width: 40px; height: 40px; border-radius: 12px; background: #fff; border: 1px solid #e2e5ff; color: var(--brand); flex: none; }
  .rep-list b { display: block; font-size: 16px; }
  .rep-list span:not(.ic) { color: var(--muted); font-size: 14px; }
  .rep-note { margin: 20px 0 0; padding: 12px 16px; border-radius: 12px; background: #fff; border-left: 4px solid var(--brand); color: var(--ink-2); font-size: 14px; }
  .phone-wrap { display: flex; flex-direction: column; align-items: center; }
  .phone { width: 340px; max-width: 100%; border-radius: 44px; padding: 12px; background: #0f172a; box-shadow: 0 40px 80px rgba(30, 30, 90, .28), inset 0 0 0 2px #334155; }
  .phone-screen { border-radius: 34px; overflow: hidden; background: #eef1f7; }
  .ph-top { display: flex; align-items: center; gap: 10px; padding: 18px 16px 12px; background: #fff; border-bottom: 1px solid var(--line); }
  .ph-top b { font-size: 15px; display: block; line-height: 1.3; }
  .ph-top small { color: var(--muted); font-size: 12px; }
  .ph-body { padding: 12px 12px 16px; }
  .ph-time { text-align: center; font-size: 11px; color: #94a3b8; margin-bottom: 8px; }
  .report-card { background: #fff; border-radius: 16px; padding: 14px; box-shadow: 0 6px 18px rgba(40, 52, 120, .08); }
  .rp-h { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
  .rp-h b { font-size: 16px; }
  .rp-h span { font-size: 12px; color: var(--muted); }
  .rp-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-bottom: 12px; }
  .rp-stats div { background: var(--bg-soft); border-radius: 10px; padding: 8px 4px; text-align: center; }
  .rp-stats b { display: block; font-size: 18px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .rp-stats span { font-size: 11px; color: var(--muted); }
  .rp-t { font-size: 12px; font-weight: 700; color: var(--ink-2); margin: 10px 0 6px; }
  .rp-t em { font-style: normal; background: #fee2e2; color: #dc2626; border-radius: 999px; padding: 0 7px; margin-left: 4px; }
  .rp-item { display: flex; gap: 8px; align-items: flex-start; padding: 7px 0; border-top: 1px solid #f1f3f9; }
  .rp-item b { display: block; font-size: 13px; }
  .rp-item small { font-size: 12px; color: var(--muted); line-height: 1.5; }
  .tag { flex: none; font-size: 11px; font-weight: 700; padding: 1px 7px; border-radius: 6px; margin-top: 2px; }
  .t-red { background: #fee2e2; color: #dc2626; }
  .t-org { background: #ffedd5; color: #ea580c; }
  .t-blue { background: #e0e7ff; color: #4f46e5; }
  .rp-p { margin: 0; font-size: 12.5px; color: var(--ink-2); }
  .rp-btn { margin-top: 12px; text-align: center; font-size: 13px; font-weight: 600; color: #fff; background: var(--grad); border-radius: 10px; padding: 8px; }
  .ph-note { margin-top: 12px; font-size: 12px; color: #94a3b8; }

  @media (max-width: 1024px) {
    .about-grid, .report-grid { grid-template-columns: 1fr; gap: 32px; }
  }
  @media (max-width: 760px) {
    .about-sec { padding-top: 48px; }
    .about-text h2, .report-text h2 { font-size: 26px; }
    .pillars { grid-template-columns: 1fr; gap: 12px; }
    .pillar { padding: 18px; }
    .phone { width: 300px; border-radius: 38px; padding: 10px; }
    .phone-screen { border-radius: 30px; }
  }

  /* 首屏对话：交给人工接待的那一行 */
  .handoff { align-self: center; font-size: 12px; font-weight: 700; color: #059669; background: #ecfdf5; border: 1px solid #a7f3d0;
             padding: 4px 12px; border-radius: 999px; }

  /* 日报：已谈成标签、今日进步 */
  .t-green { background: #dcfce7; color: #15803d; }
  .rp-t em.ok { background: #dcfce7; color: #15803d; }
  .rp-grow { color: #6d5dfc; font-weight: 600; }


  /* 关于我们页面 */
  .nav-links a.on { color: var(--brand); font-weight: 700; }
  .page-hero { padding: 80px 0 24px; text-align: center;
               background: radial-gradient(900px 380px at 20% -20%, #e9ecff 0%, rgba(233,236,255,0) 70%),
                           radial-gradient(800px 420px at 90% 0%, #f3e8ff 0%, rgba(243,232,255,0) 65%), #fff; }
  .page-hero h1 { font-size: 46px; line-height: 1.25; margin: 18px 0 14px; font-weight: 800; }
  .page-hero .lead { max-width: 40em; margin: 0 auto; color: var(--ink-2); font-size: 18px; }
  .cta-band { padding: 24px 0 88px; }
  .cta-in { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 36px 40px; border-radius: 24px;
            background: radial-gradient(600px 300px at 10% 0%, rgba(255,255,255,.18), transparent 70%), var(--grad); color: #fff; }
  .cta-in h2 { margin: 0 0 6px; font-size: 26px; }
  .cta-in p { margin: 0; opacity: .92; }
  .cta-in .btn-primary { background: #fff; color: var(--brand); box-shadow: 0 10px 24px rgba(20, 20, 80, .25); flex: none; }
  .foot-links { display: inline-flex; gap: 20px; }
  @media (max-width: 760px) {
    .page-hero { padding: 48px 0 8px; }
    .page-hero h1 { font-size: 30px; }
    .page-hero .lead { font-size: 16px; }
    .cta-in { flex-direction: column; align-items: flex-start; padding: 26px 22px; }
    .cta-in .btn { width: 100%; }
    .cta-band { padding-bottom: 60px; }
  }

  /* 核心能力卡片顶部的实景照片 */
  .feature { overflow: hidden; }
  .feat-photo { margin: -30px -30px 20px; aspect-ratio: 16 / 7; overflow: hidden; background: #eef0f6; }
  .feat-photo img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
  .feature:hover .feat-photo img { transform: scale(1.04); }
  .feature .feat-photo + .ic { margin-top: -46px; position: relative; box-shadow: 0 0 0 4px #fff; }

  /* 关于我们：实景照片排 */
  .photo-band { padding: 8px 0 0; }
  .photo-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .photo-row figure { margin: 0; position: relative; border-radius: 18px; overflow: hidden; aspect-ratio: 4 / 3; box-shadow: var(--shadow); background: #eef0f6; }
  .photo-row img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .photo-row figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 36px 16px 14px; color: #fff; font-weight: 600; font-size: 15px;
                          background: linear-gradient(transparent, rgba(15, 23, 42, .7)); }
  @media (max-width: 760px) {
    .feat-photo { margin: -24px -24px 18px; }
    .photo-row { grid-template-columns: 1fr; gap: 12px; }
    .photo-row figure { aspect-ratio: 16 / 9; }
  }
  /* 必填星号 */
  .req { color: #ef4444; font-weight: 700; }
  .form-card form > p .req { margin: 0 2px; }
  /* 小屏手机：顶栏放下“切换为英文”和按钮 */
  @media (max-width: 360px) {
    .nav-in { gap: 8px; }
    .typing { display: none; }
    .lang { padding: 3px 8px; font-size: 12px; }
    .nav .btn { padding: 0 10px; font-size: 13px; height: 36px; }
  }