/* ============ 基础 ============ */
:root{
  --navy:#10243E;
  --navy-2:#1B3A5F;
  --ink:#17233B;
  --muted:#5D6B82;
  --orange:#FF6A2B;
  --orange-2:#FF8B52;
  --bg:#F6F8FB;
  --bg-alt:#EFF4FA;
  --card:#FFFFFF;
  --line:#E3E9F2;
  --radius:16px;
  --shadow:0 1px 2px rgba(16,36,62,.05), 0 8px 24px rgba(16,36,62,.06);
  --shadow-lg:0 2px 4px rgba(16,36,62,.06), 0 16px 40px rgba(16,36,62,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}
a{text-decoration:none;color:inherit}
img{max-width:100%}
ul{list-style:none}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
section{scroll-margin-top:72px}

/* ============ 入场动画 ============ */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ============ 导航 ============ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .3s,box-shadow .3s;
}
.nav.scrolled{border-bottom-color:var(--line);box-shadow:0 4px 16px rgba(16,36,62,.06)}
.nav-inner{
  max-width:1120px;margin:0 auto;padding:0 24px;
  height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--ink)}
.brand-0{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:8px;
  background:linear-gradient(135deg,var(--orange),var(--orange-2));
  color:#fff;font-size:17px;font-weight:800;
  box-shadow:0 3px 8px rgba(255,106,43,.35);
}
.nav-links{display:flex;gap:28px;font-size:14px;color:var(--muted)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--orange);font-weight:700}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:38px;height:38px;border:1px solid var(--line);border-radius:9px;
  background:#fff;color:var(--ink);font-size:16px;cursor:pointer;
  align-items:center;justify-content:center;
}
/* 深色首屏上的导航形态 */
.nav.on-dark{background:rgba(10,22,40,.55)}
.nav.on-dark .brand{color:#fff}
.nav.on-dark .nav-links{color:rgba(255,255,255,.75)}
.nav.on-dark .nav-links a:hover{color:#fff}
.nav.on-dark .nav-links a.active{color:var(--orange-2)}
.nav.on-dark.scrolled{border-bottom-color:rgba(255,255,255,.08)}
.nav.on-dark .nav-toggle{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.3);color:#fff}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:10px;font-size:15px;font-weight:600;
  cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-2));
  color:#fff;box-shadow:0 6px 18px rgba(255,106,43,.35);
}
.btn-primary:hover{box-shadow:0 8px 24px rgba(255,106,43,.45)}
.btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{border-color:rgba(255,255,255,.7);background:rgba(255,255,255,.08)}
.btn-outline{border:1.5px solid var(--navy);color:var(--navy);background:transparent}
.btn-outline:hover{background:rgba(16,36,62,.06)}
.btn-sm{padding:8px 20px;font-size:14px;border-radius:8px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:120px 0 80px;
  color:#fff;
  background:
    radial-gradient(900px 520px at 88% 8%, rgba(255,106,43,.16), transparent 62%),
    radial-gradient(760px 520px at 8% 92%, rgba(58,124,214,.22), transparent 62%),
    linear-gradient(160deg,#0B1B30 0%,#12294A 58%,#0E2240 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 90% 80% at 50% 30%,#000 30%,transparent 100%);
  -webkit-mask-image:radial-gradient(ellipse 90% 80% at 50% 30%,#000 30%,transparent 100%);
}
.hero-inner{
  position:relative;
  max-width:1280px;margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:0.85fr 1.15fr;gap:40px;align-items:center;
}
.hero-eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.12em;
  color:rgba(255,255,255,.72);
  border:1px solid rgba(255,255,255,.22);border-radius:99px;
  padding:5px 14px;margin-bottom:26px;
}
.hero h1{font-size:62px;font-weight:800;letter-spacing:.02em;line-height:1.15}
.hero-slogan{
  margin-top:14px;font-size:27px;font-weight:700;color:#fff;
}
.hero-slogan em{
  font-style:normal;color:var(--orange-2);
  text-decoration:underline;text-decoration-color:rgba(255,139,82,.5);
  text-decoration-thickness:5px;text-underline-offset:8px;
}
.hero-sub{margin-top:26px;font-size:16.5px;color:rgba(255,255,255,.78);max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero-chips{display:flex;gap:10px;margin-top:34px;flex-wrap:wrap}
.hero-chips li{
  font-size:13px;color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  padding:5px 14px;border-radius:99px;
}

/* ---- 首屏演示窗 ---- */
.hero-demo{position:relative}
.hero-badge-mini{
  position:absolute;top:-24px;left:-26px;z-index:3;
  transform:rotate(-6deg);
  display:flex;gap:10px;align-items:center;
  background:#fff;border-radius:12px;padding:9px 14px 9px 10px;
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.hero-badge-mini .bm-0{
  width:36px;height:36px;border-radius:9px;
  background:linear-gradient(135deg,var(--navy),#2C5288);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:19px;
}
.hero-badge-mini .bm-name{font-size:13px;font-weight:800;color:var(--ink);line-height:1.25}
.hero-badge-mini .bm-role{font-size:10.5px;color:var(--orange);font-weight:600}
.demo-tabs{display:flex;gap:8px;padding:12px 14px 0;flex-wrap:wrap}
.demo-tab{
  font-size:12.5px;padding:5px 14px;border-radius:99px;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  cursor:pointer;transition:all .2s;font-family:inherit;
}
.demo-tab:hover{border-color:var(--navy-2);color:var(--navy)}
.demo-tab.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.demo-pane{display:none}
.demo-pane.active{display:block}
.hero-demo .chat-body{padding:14px 14px 16px;gap:11px}
.hero-demo .process li{padding:2px 0}
.approve-card{background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:12px 14px}
.approve-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.approve-title{font-size:13px;font-weight:700}
.approve-badge{font-size:10.5px;color:#B7791F;background:#FDF3E3;padding:2px 9px;border-radius:99px;font-weight:700;white-space:nowrap}
.approve-note{font-size:12px;color:var(--muted);margin-top:6px}
.approve-actions{display:flex;gap:8px;margin-top:10px}
.approve-btn{flex:1;text-align:center;font-size:12px;font-weight:700;padding:7px 0;border-radius:8px}
.ab-ok{background:rgba(34,160,107,.12);color:#1F9254}
.ab-no{background:rgba(192,57,43,.08);color:#C0392B}
.ai-answer{
  background:#F0F6FF;border:1px solid #DCE7F4;border-radius:12px;
  padding:10px 14px;font-size:13px;color:var(--ink);line-height:1.65;
}

/* ============ 通用 section ============ */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-head{text-align:center;max-width:640px;margin:0 auto 56px}
.section-head .kicker{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--orange);margin-bottom:12px;
}
.section-head h2{font-size:34px;font-weight:800;line-height:1.3}
.section-head p{margin-top:14px;font-size:15.5px;color:var(--muted)}

/* ============ 它是什么 ============ */
.steps3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);
}
.step-no{
  flex:0 0 42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,rgba(255,106,43,.12),rgba(255,139,82,.18));
  color:var(--orange);font-weight:800;font-size:16px;
  display:flex;align-items:center;justify-content:center;
}
.step h3{font-size:17.5px;font-weight:700;margin-bottom:5px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---- 对话演示窗 ---- */
.chat-mock{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow-lg);overflow:hidden;
}
.chat-titlebar{
  display:flex;align-items:center;gap:8px;
  padding:12px 16px;border-bottom:1px solid var(--line);background:#FBFCFE;
}
.dot{width:11px;height:11px;border-radius:50%}
.dot-r{background:#FF5F57}.dot-y{background:#FEBC2E}.dot-g{background:#28C840}
.chat-title{margin-left:10px;font-size:12.5px;color:var(--muted)}
.chat-body{padding:20px 18px 22px;display:flex;flex-direction:column;gap:14px}
.msg-user{
  align-self:flex-end;max-width:82%;
  background:linear-gradient(135deg,var(--navy),var(--navy-2));
  color:#fff;font-size:13.5px;line-height:1.65;
  padding:11px 15px;border-radius:14px 14px 4px 14px;
}
.msg-ai{align-self:flex-start;max-width:92%}
.process{
  background:#F4F8FD;border:1px solid #DCE7F4;border-radius:12px;
  padding:12px 14px;font-size:12.5px;color:#3D5170;
}
.process-title{font-weight:700;color:var(--navy);margin-bottom:7px;font-size:12.5px}
.process li{display:flex;gap:8px;align-items:flex-start;padding:3px 0}
.check{
  flex:0 0 16px;height:16px;margin-top:2px;border-radius:50%;
  background:#22A06B;color:#fff;font-size:10px;
  display:inline-flex;align-items:center;justify-content:center;
}
.report-card{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow);overflow:hidden;
}
.report-head{
  display:flex;justify-content:space-between;align-items:center;gap:8px;
  padding:11px 14px;border-bottom:1px solid var(--line);
  font-size:13px;font-weight:700;
}
.report-head .tag{
  font-size:10.5px;font-weight:600;color:var(--orange);
  background:rgba(255,106,43,.1);padding:2px 8px;border-radius:99px;white-space:nowrap;
}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--line)}
.kpi{padding:10px 12px;border-right:1px solid var(--line)}
.kpi:last-child{border-right:none}
.kpi-label{font-size:11px;color:var(--muted)}
.kpi-value{font-size:16.5px;font-weight:800;margin-top:1px}
.kpi-delta{font-size:11px;font-weight:600}
.up{color:#1F9254}.down{color:#C0392B}
.table-wrap{overflow-x:auto}
.rtable{width:100%;border-collapse:collapse;font-size:12px}
.rtable th{
  text-align:left;font-weight:600;color:var(--muted);
  padding:7px 12px;border-bottom:1px solid var(--line);background:#FBFCFE;white-space:nowrap;
}
.rtable td{padding:7px 12px;border-bottom:1px solid #EEF2F8;white-space:nowrap}
.rtable tr:last-child td{border-bottom:none}
.report-foot{
  display:flex;align-items:center;gap:7px;
  padding:9px 14px;font-size:11.5px;color:var(--muted);background:#FBFCFE;
}
.clock{color:var(--orange);font-weight:700}
.mock-note{text-align:center;font-size:12px;color:#9AA8BC;margin-top:18px}

/* ============ 核心能力 ============ */
.skills-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.skill-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.skill-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(255,106,43,.4)}
.skill-icon{
  width:44px;height:44px;border-radius:12px;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(255,106,43,.1),rgba(255,139,82,.16));
  display:flex;align-items:center;justify-content:center;
}
.skill-icon svg{width:22px;height:22px;stroke:var(--orange);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.skill-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.skill-card p{font-size:13.5px;color:var(--muted)}

/* ============ 场景 ============ */
.scenes-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.scene-col{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  overflow:hidden;box-shadow:var(--shadow);
  display:flex;flex-direction:column;
}
.scene-col-head{padding:20px 22px 18px;border-bottom:1px solid var(--line);background:#FBFCFE}
.scene-col-head .cat{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--navy-2);background:rgba(27,58,95,.08);
  padding:3px 11px;border-radius:6px;margin-bottom:12px;
}
.scene-col-head h3{font-size:21px;font-weight:800}
.scene-col-head p{font-size:13px;color:var(--muted);margin-top:4px}
.scene-item{padding:16px 22px;border-bottom:1px solid #EEF2F8;flex:1}
.scene-item:last-child{border-bottom:none}
.scene-item .no{
  display:inline-block;font-size:11px;font-weight:800;color:#C4CFDE;letter-spacing:.08em;
  margin-right:9px;vertical-align:2px;
}
.scene-item h4{display:inline;font-size:15.5px;font-weight:700}
.scene-item h4 + p{margin-top:5px}
.scene-item p{font-size:12.5px;color:var(--muted)}

/* ============ 放心用 ============ */
.trust{
  background:
    radial-gradient(800px 420px at 50% -10%, rgba(255,106,43,.07), transparent 60%),
    #FFFFFF;
}
.trust .section-head h2{color:var(--ink)}
.trust .section-head p{color:var(--muted)}
.motto{
  text-align:center;font-size:30px;font-weight:800;letter-spacing:.03em;
  margin-bottom:64px;line-height:1.6;color:var(--ink);
}
.motto em{
  font-style:normal;color:var(--orange);
  text-decoration:underline;text-decoration-color:rgba(255,106,43,.35);
  text-decoration-thickness:4px;text-underline-offset:7px;
}
.motto .sep{color:#C4CFDE;margin:0 6px}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.trust-item{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px 26px;box-shadow:var(--shadow);
}
.trust-icon{
  width:44px;height:44px;border-radius:12px;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(255,106,43,.1),rgba(255,139,82,.16));
  display:flex;align-items:center;justify-content:center;
}
.trust-icon svg{width:22px;height:22px;stroke:var(--orange);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.trust-item h3{font-size:17px;font-weight:700;margin-bottom:8px}
.trust-item p{font-size:14px;color:var(--muted)}

/* ============ CTA ============ */
.cta-section{text-align:center}
.cta-section h2{font-size:32px;font-weight:800}
.cta-section .lead{margin-top:12px;font-size:15.5px;color:var(--muted)}
.qr-box{
  width:200px;height:200px;margin:40px auto 16px;
  border:2px dashed #C4CFDE;border-radius:18px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  color:#9AA8BC;font-size:13px;background:#FBFCFE;
}
.qr-box svg{width:52px;height:52px;stroke:#B6C2D4;fill:none;stroke-width:1.6}
.qr-hint{font-size:14.5px;font-weight:600;color:var(--ink)}
.cta-note{font-size:12.5px;color:#9AA8BC;margin-top:8px}

/* ============ 页脚 ============ */
.footer{
  border-top:1px solid var(--line);
  padding:48px 0 26px;text-align:left;
  font-size:13px;color:#9AA8BC;background:#FBFCFE;
}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px;margin-bottom:30px}
.footer-brand p{margin-top:12px;max-width:300px;line-height:1.7}
.footer h5{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:12px}
.footer ul li{margin-bottom:9px}
.footer ul a{color:#8A99AF;transition:color .2s}
.footer ul a:hover{color:var(--ink)}
.footer-bottom{border-top:1px solid var(--line);padding-top:20px;text-align:center}

/* ============ 三座孤岛 ============ */
.islands{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.island{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);
}
.island-icon{
  width:44px;height:44px;border-radius:12px;margin-bottom:14px;
  background:linear-gradient(135deg,rgba(16,36,62,.06),rgba(27,58,95,.1));
  display:flex;align-items:center;justify-content:center;
}
.island-icon svg{width:22px;height:22px;stroke:var(--navy-2);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.island h3{font-size:17px;font-weight:700;margin-bottom:8px}
.island p{font-size:14px;color:var(--muted)}
.pain-quote{margin-top:56px;text-align:center}
.pain-quote blockquote{
  font-size:23px;font-weight:700;line-height:1.75;color:var(--ink);
  max-width:760px;margin:0 auto;
}
.pain-quote blockquote::before{
  content:"“";display:block;font-size:64px;line-height:.6;
  color:var(--orange);margin-bottom:16px;font-family:Georgia,serif;
}
.pain-quote cite{display:block;margin-top:16px;font-size:13px;color:#9AA8BC;font-style:normal}

/* ============ 三道闸门 ============ */
.gates{margin-top:64px}
.gates-title{text-align:center;font-size:20px;font-weight:800;margin-bottom:6px;color:var(--ink)}
.gates-sub{text-align:center;font-size:13.5px;color:var(--muted);margin-bottom:24px}
.gates-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.gate{background:#FBFCFE;border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.gate-no{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--orange);margin-bottom:8px}
.gate h4{font-size:15.5px;font-weight:700;margin-bottom:5px;color:var(--ink)}
.gate p{font-size:13px;color:var(--muted);line-height:1.7}

/* ============ 资产飞轮 ============ */
.flywheel-chain{display:flex;justify-content:center;align-items:stretch;gap:12px;margin:48px 0 36px}
.fly-node{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:16px 22px;box-shadow:var(--shadow);text-align:center;min-width:150px;
}
.fly-node .t{font-size:17px;font-weight:800;color:var(--ink)}
.fly-node .d{font-size:12px;color:var(--muted);margin-top:4px}
.fly-arrow{align-self:center;color:var(--orange);font-size:24px;font-weight:800}
.fly-loop{text-align:center;font-size:15px;font-weight:700;color:var(--ink)}
.fly-loop em{font-style:normal;color:var(--orange)}
.fly-note{text-align:center;font-size:13.5px;color:var(--muted);margin-top:12px}

/* ============ 截图占位框 ============ */
.shot-frame{
  margin-top:44px;background:var(--card);border:1px solid var(--line);
  border-radius:18px;box-shadow:var(--shadow-lg);overflow:hidden;
}
.shot-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);background:#FBFCFE}
.shot-url{margin-left:10px;font-size:12px;color:var(--muted);background:#F1F5FA;border-radius:6px;padding:3px 12px}
.shot-body{
  margin:18px;height:420px;border:2px dashed #D5DEEA;border-radius:12px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  color:#9AA8BC;font-size:13.5px;background:#FBFCFE;
}

/* ============ 场景演示链接 ============ */
.scene-more{padding:13px 18px;text-align:center}
.scene-more a{font-size:13px;font-weight:600;color:var(--orange)}
.scene-more a:hover{text-decoration:underline}
.scene-col .scene-item:last-of-type{border-bottom:none}
.scene-more{border-top:1px solid #EEF2F8}

/* ============ 三步开始 ============ */
.start-strip{display:flex;justify-content:center;align-items:stretch;gap:14px;flex-wrap:wrap}
.start-item{
  display:flex;gap:13px;align-items:flex-start;flex:1;max-width:300px;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:20px 22px;box-shadow:var(--shadow);
}
.start-no{
  flex:0 0 30px;height:30px;border-radius:50%;
  background:linear-gradient(135deg,var(--orange),var(--orange-2));
  color:#fff;font-weight:800;font-size:14px;
  display:flex;align-items:center;justify-content:center;
}
.start-item h4{font-size:15.5px;font-weight:700;margin-bottom:4px}
.start-item p{font-size:13px;color:var(--muted)}
.start-arrow{align-self:center;color:var(--orange);font-size:22px;font-weight:800}

/* ============ 预约演示弹窗 ============ */
.modal-backdrop{
  position:fixed;inset:0;background:rgba(9,18,32,.62);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
  z-index:200;display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-backdrop.open{display:flex}
.modal{
  background:#fff;border-radius:18px;max-width:560px;width:100%;
  padding:36px 32px 30px;position:relative;
  box-shadow:0 30px 80px rgba(0,0,0,.35);
  animation:pop .25s ease;
}
@keyframes pop{from{transform:scale(.94);opacity:0}to{transform:scale(1);opacity:1}}
.modal-close{
  position:absolute;top:12px;right:14px;font-size:24px;color:#9AA8BC;
  background:none;border:none;cursor:pointer;line-height:1;padding:4px;
}
.modal-close:hover{color:var(--ink)}
.modal h3{font-size:22px;font-weight:800;text-align:center}
.modal-sub{text-align:center;font-size:13.5px;color:var(--muted);margin:8px 0 24px}
.modal-ways{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;text-align:center}
.way{border:1px solid var(--line);border-radius:12px;padding:18px 12px 16px}
.way-qr{
  width:108px;height:108px;margin:0 auto 12px;
  border:2px dashed #C4CFDE;border-radius:10px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  color:#B6C2D4;font-size:10.5px;line-height:1.5;
}
.way h4{font-size:14px;font-weight:700;margin-bottom:4px}
.way p{font-size:12px;color:var(--muted);word-break:break-all}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;
  background:var(--navy);color:#fff;border:none;cursor:pointer;
  box-shadow:0 8px 20px rgba(16,36,62,.35);font-size:17px;
  opacity:0;pointer-events:none;transition:all .3s;z-index:150;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--orange)}

/* ============ 响应式 ============ */
@media (max-width: 980px){
  .hero{padding:130px 0 70px}
  .hero-inner{grid-template-columns:1fr;gap:56px;text-align:center}
  .hero-sub{margin-left:auto;margin-right:auto}
  .hero-actions,.hero-chips{justify-content:center}
  .badge-wrap{padding-top:10px}
  .what-grid{grid-template-columns:1fr;gap:40px}
  .skills-grid{grid-template-columns:repeat(2,1fr)}
  .scenes-grid{grid-template-columns:repeat(2,1fr)}
  .islands{grid-template-columns:1fr}
  .gates-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr}
  .motto{font-size:24px}
  .steps3{grid-template-columns:1fr}
  .shot-body{height:300px}
  .hero-demo{max-width:560px;margin:0 auto;width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width: 760px){
  .nav-toggle{display:inline-flex}
  .nav-links{display:none}
  .nav.menu-open .nav-links{
    display:flex;position:absolute;top:60px;left:0;right:0;
    flex-direction:column;gap:2px;background:#fff;
    padding:12px 24px 16px;
    box-shadow:0 14px 30px rgba(16,36,62,.14);
    border-bottom:1px solid var(--line);
  }
  .nav.menu-open .nav-links a{color:var(--ink);font-size:15px;padding:9px 0}
  .nav.menu-open .nav-links a.active{color:var(--orange)}
}
@media (max-width: 620px){
  .hero h1{font-size:46px}
  .hero-slogan{font-size:20px}
  .hero-sub{font-size:15px}
  .section{padding:72px 0}
  .section-head h2{font-size:26px}
  .skills-grid{grid-template-columns:1fr}
  .chat-body{padding:16px 12px 18px}
  .msg-user{font-size:12.5px}
  .kpi-value{font-size:14.5px}
  .badge{width:236px}
  .scenes-grid{grid-template-columns:1fr}
  .pain-quote blockquote{font-size:19px}
  .flywheel-chain{flex-wrap:wrap}
  .fly-arrow{transform:rotate(90deg)}
  .fly-node{min-width:128px;padding:14px 16px}
  .hero-badge-mini{display:none}
  .demo-tab{font-size:11px;padding:4px 10px}
  .start-arrow{display:none}
  .start-item{max-width:100%}
  .shot-body{height:220px}
  .modal{padding:28px 20px 24px}
  .modal-ways{grid-template-columns:1fr}
  .way{display:flex;align-items:center;gap:14px;text-align:left;padding:14px 16px}
  .way-qr{width:84px;height:84px;margin:0;flex:0 0 84px}
}

/* ============ 子页头 ============ */
.page-hero{padding:128px 0 64px;background:linear-gradient(180deg,#EFF4FA,#F6F8FB);border-bottom:1px solid var(--line)}
.page-hero .kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--orange);margin-bottom:12px}
.page-hero h1{font-size:40px;font-weight:800;line-height:1.3;color:var(--ink)}
.page-hero p{margin-top:14px;font-size:16px;color:var(--muted);max-width:640px}

/* ============ 首页四入口卡 ============ */
.page-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.page-card{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.page-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(255,106,43,.4)}
.page-card .pc-no{font-size:11px;font-weight:800;letter-spacing:.1em;color:#C4CFDE}
.page-card h3{font-size:17.5px;font-weight:800;margin:6px 0 6px;color:var(--ink)}
.page-card p{font-size:13px;color:var(--muted)}
.page-card .pc-go{display:inline-block;margin-top:12px;font-size:13px;font-weight:700;color:var(--orange)}

/* ============ 子页底部 CTA 带 ============ */
.cta-band{background:linear-gradient(160deg,#0C1D33,#143156);color:#fff;padding:76px 0;text-align:center}
.cta-band h2{font-size:28px;font-weight:800;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin-bottom:30px}

@media (max-width:980px){
  .page-cards{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:620px){
  .page-cards{grid-template-columns:1fr}
  .page-hero{padding:104px 0 44px}
  .page-hero h1{font-size:30px}
  .cta-band h2{font-size:23px}
}

/* ============ 对照表(首页) ============ */
.cmp-wrap{overflow-x:auto}
.cmp{width:100%;border-collapse:separate;border-spacing:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;font-size:14px;min-width:640px}
.cmp th,.cmp td{padding:15px 20px;border-bottom:1px solid #EEF2F8;text-align:left;vertical-align:top;line-height:1.65}
.cmp thead th{background:#FBFCFE;font-size:14px;font-weight:700;color:var(--ink);border-bottom:1px solid var(--line)}
.cmp thead th.cmp-us{background:rgba(255,106,43,.08);color:var(--orange)}
.cmp tbody th{font-weight:700;color:var(--ink);width:120px;background:#FBFCFE}
.cmp td{color:var(--muted)}
.cmp td.cmp-us{color:var(--ink);background:rgba(255,106,43,.04);font-weight:500}
.cmp tbody tr:last-child th,.cmp tbody tr:last-child td{border-bottom:none}
.cmp-note{margin-top:18px;text-align:center;font-size:14px;color:var(--muted)}
.cmp-note b{color:var(--orange)}

/* ============ 三层共处(what) ============ */
.layers{max-width:640px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.layer{border-radius:12px;padding:16px 20px;border:1px solid var(--line);background:var(--card);text-align:center;box-shadow:var(--shadow)}
.layer b{font-size:15px;color:var(--ink)}
.layer span{display:block;font-size:12.5px;color:var(--muted);margin-top:3px}
.layer-mid{background:linear-gradient(135deg,var(--navy),var(--navy-2));border-color:var(--navy)}
.layer-mid b{color:#fff}
.layer-mid span{color:rgba(255,255,255,.75)}
.layer-arrow{text-align:center;color:var(--orange);font-size:16px;font-weight:800;line-height:1}

/* ============ FAQ ============ */
.faq{background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;padding:16px 20px;font-size:15px;font-weight:700;color:var(--ink);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;color:var(--orange);font-weight:800;flex:0 0 auto}
.faq[open] summary::after{content:"‘2"}
.faq .faq-a{padding:0 20px 18px;font-size:14px;color:var(--muted);line-height:1.75}

/* ============ 王牌详解(skills) ============ */
.deep{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;padding:46px 0;border-bottom:1px dashed var(--line)}
.deep:last-of-type{border-bottom:none;padding-bottom:6px}
.deep h3{font-size:22px;font-weight:800;margin-bottom:12px}
.deep p{font-size:14.5px;color:var(--muted);line-height:1.8}
.deep-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.deep-points span{font-size:12px;font-weight:600;color:var(--navy-2);background:rgba(27,58,95,.07);padding:4px 12px;border-radius:99px}

/* ============ 以前 vs 现在(skills) ============ */
.vs-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:28px}
.vs-col{border-radius:14px;padding:22px;border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow)}
.vs-col h4{font-size:15px;font-weight:800;margin-bottom:14px}
.vs-old h4{color:var(--muted)}
.vs-new{border-color:rgba(255,106,43,.35);background:rgba(255,106,43,.03)}
.vs-new h4{color:var(--orange)}
.vs-steps{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.vs-step{font-size:13px;padding:6px 12px;border-radius:8px;background:#F1F5FA;color:var(--muted)}
.vs-new .vs-step{background:rgba(34,160,107,.1);color:#1F9254;font-weight:600}
.vs-arrow{color:#C4CFDE;font-weight:800}
.vs-note{margin-top:12px;font-size:12.5px;color:var(--muted)}

/* ============ 主打场景时间线(scenes) ============ */
.story{max-width:720px;margin:0 auto;position:relative;padding-left:26px}
.story::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:#E3E9F2}
.story-item{position:relative;padding:0 0 26px 14px}
.story-item:last-child{padding-bottom:0}
.story-item::before{content:"";position:absolute;left:-25px;top:5px;width:12px;height:12px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(255,106,43,.18)}
.story-time{font-size:12px;font-weight:800;color:var(--orange);letter-spacing:.05em}
.story-item h4{font-size:16px;font-weight:700;margin:3px 0 4px}
.story-item p{font-size:13.5px;color:var(--muted)}

/* ============ 之前→现在(scenes) ============ */
.bn{margin-top:7px;font-size:12px;line-height:1.6}
.bn-old{color:#98A5B8}
.bn-new{color:#1F9254;font-weight:600}

/* ============ 图文分栏(trust 回放) ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}

@media (max-width:980px){
  .deep{grid-template-columns:1fr;gap:24px}
  .vs-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:28px}
}

/* ============ 需求对照页 ============ */
.group-title{font-size:21px;font-weight:800;margin:60px 0 22px;padding-left:14px;border-left:4px solid var(--orange);color:var(--ink)}
.group-title:first-of-type{margin-top:0}
.group-title span{font-size:13px;color:var(--muted);font-weight:600;margin-left:10px}
.need-no{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.1em;color:#C4CFDE;margin-bottom:7px}
.need-how{margin-top:9px;font-size:13px;color:var(--ink);line-height:1.65}
.need-how b{color:var(--orange)}
.needs-note{margin-top:56px;background:var(--card);border:1px dashed #C4CFDE;border-radius:12px;padding:18px 22px;font-size:13.5px;color:var(--muted);line-height:1.8}
.needs-note b{color:var(--ink)}

/* ============ 首页需求入口条 ============ */
.explore-more{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:20px;background:linear-gradient(135deg,var(--navy),var(--navy-2));
  border-radius:var(--radius);padding:20px 26px;color:#fff;
  transition:transform .25s,box-shadow .25s;box-shadow:var(--shadow);
}
.explore-more:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.explore-more b{font-size:16px}
.explore-more small{display:block;font-size:13px;color:rgba(255,255,255,.75);margin-top:3px;font-weight:400}
.explore-more .em-go{font-size:15px;font-weight:700;color:var(--orange-2);white-space:nowrap}
@media (max-width:620px){
  .explore-more{flex-direction:column;align-items:flex-start}
}

/* ============ 图片/视频占位(替换素材用,搜索 TODO-PH 定位) ============ */
.ph-img{
  border:2px dashed #C9D4E2;border-radius:14px;background:#FBFCFE;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  color:#9AA8BC;text-align:center;padding:24px;
}
.ph-img svg{width:42px;height:42px;stroke:#C4CFDE;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.ph-img .ph-t{font-size:14.5px;font-weight:600;color:#8A99AF}
.ph-img .ph-s{font-size:12px}
.ph-16x9{aspect-ratio:16/9}
.ph-mini{height:132px;padding:12px}
.ph-mini svg{width:28px;height:28px}
.ph-video{
  border:2px dashed rgba(255,255,255,.28);border-radius:16px;
  background:linear-gradient(160deg,#12294A,#0C1D33);
  aspect-ratio:16/9;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  text-align:center;padding:24px;
}
.ph-play{
  width:72px;height:72px;border-radius:50%;
  background:linear-gradient(135deg,var(--orange),var(--orange-2));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:24px;padding-left:6px;
  box-shadow:0 10px 28px rgba(255,106,43,.4);
}
.ph-video .ph-t{color:rgba(255,255,255,.88);font-size:15.5px;font-weight:600}
.ph-video .ph-s{color:rgba(255,255,255,.55);font-size:12px}
@media (max-width:620px){
  .ph-mini{height:110px}
}

/* ============ 注册表树(王牌一示意) ============ */
.reg-tree{list-style:none;margin-top:2px}
.reg-tree li{display:block;padding:1px 0;font-size:13px;color:#3D5170;line-height:2;font-family:Consolas,Menlo,monospace}
.reg-tree em{font-style:normal;font-size:10.5px;color:#8A99AF;background:#F1F5FA;border-radius:4px;padding:1px 7px;margin-left:8px;font-family:inherit}
.reg-tree .rt-sys{font-weight:700;color:var(--navy)}
.reg-lock{color:#B7791F;background:#FDF3E3;font-size:10.5px;padding:1px 9px;border-radius:99px;margin-left:8px;font-weight:700}

/* ============ 例子卡(中心思想) ============ */
.eg-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;max-width:920px;margin:0 auto}
.eg{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;box-shadow:var(--shadow);text-align:left}
.eg-role{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.06em;color:var(--navy-2);background:rgba(27,58,95,.08);border-radius:6px;padding:2px 10px;margin-bottom:9px}
.eg p{font-size:13.5px;color:var(--muted);line-height:1.75}
.eg p b{color:var(--ink)}
@media (max-width:680px){
  .eg-grid{grid-template-columns:1fr}
}

/* ============ 开放生态(skills · 第17页) ============ */
.eco-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.eco-group{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.eco-cat{font-size:11.5px;font-weight:800;letter-spacing:.08em;color:var(--navy-2);margin-bottom:10px}
.eco-chips{display:flex;flex-wrap:wrap;gap:7px}
.eco-chip{font-size:12.5px;color:#3D5170;background:#F1F5FA;border-radius:7px;padding:4px 11px}
@media (max-width:980px){
  .eco-groups{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:620px){
  .eco-groups{grid-template-columns:1fr}
}

/* ============ 真实截图 ============ */
.real-shot{margin:36px auto 0;max-width:920px}
.real-shot img{width:100%;display:block;border-radius:14px;border:1px solid var(--line);box-shadow:var(--shadow-lg)}

/* ============ 四孤岛(首页 2x2) ============ */
.islands-quad{grid-template-columns:repeat(2,1fr)}

/* ============ 红线四条(2x2) ============ */
.gates-grid-2{grid-template-columns:repeat(2,1fr)}

@media (max-width:980px){
  .islands-quad{grid-template-columns:1fr}
  .gates-grid-2{grid-template-columns:1fr}
}

/* ============ 首屏演示窗逐句动画 ============ */
.demo-pane .a-card{opacity:0;transform:translateY(12px) scale(.98);transition:opacity .45s ease,transform .45s ease}
.demo-pane .a-card.on{opacity:1;transform:none}
.demo-pane .process li{opacity:0;transform:translateX(-8px);transition:opacity .3s ease,transform .3s ease}
.demo-pane .process li.on{opacity:1;transform:none}
.demo-pane .a-type.cursor::after{content:"8D";color:var(--orange);animation:aBlink .7s steps(1) infinite;margin-left:2px}
@keyframes aBlink{50%{opacity:0}}

/* ============ 首屏演示窗加大版 ============ */
.hero-demo .chat-body{padding:18px 18px 20px;gap:12px}
.hero-demo .msg-user{font-size:14px}
.hero-demo .process{font-size:13px}
.hero-demo .kpi-value{font-size:18px}
.hero-demo .rtable{font-size:12.5px}