:root{
  --brand:#00C29A;
  --brand-2:#00B894;
  --brand-soft:#E6F7F2;
  --ink:#0F172A;
  --ink-2:#334155;
  --muted:#64748B;
  --line:#E3EEEA;
  --bg:#FFFDF9;
  --bg-2:#F1FAF7;
  --white:#fff;
  --radius:18px;
  --shadow:0 18px 50px -22px rgba(15,23,42,.28);
  --shadow-sm:0 8px 24px -16px rgba(15,23,42,.35);
  --max:1180px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
section{position:relative}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand);text-transform:uppercase;margin-bottom:16px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
.h2{font-size:clamp(28px,3.6vw,42px);line-height:1.18;font-weight:800;letter-spacing:-.01em}
.lead{font-size:17px;color:var(--muted);max-width:620px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px;padding:13px 24px;border-radius:999px;transition:.25s;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px -12px rgba(0,194,154,.7)}
.btn-primary:hover{background:#00A887;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(255,253,249,.82);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.3s}
.nav.scrolled{background:rgba(255,253,249,.95);border-color:var(--line)}
.nav-inner{max-width:var(--max);margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px}
.logo img{height:38px;width:auto}
.nav-links{display:flex;gap:30px;font-size:15px;color:var(--ink-2);font-weight:500}
.nav-links a:hover{color:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;font-size:24px;color:var(--ink)}

/* hero */
.hero{padding:140px 0 80px;background:radial-gradient(1100px 500px at 80% -10%,rgba(0,194,154,.12),transparent 60%),linear-gradient(180deg,var(--bg-2),var(--bg))}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,5vw,56px);line-height:1.1;font-weight:850;letter-spacing:-.02em;margin-bottom:22px}
.hero h1 .accent{color:var(--brand)}
.hero p.sub{font-size:18px;color:var(--ink-2);max-width:520px;margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-meta{margin-top:30px;display:flex;gap:26px;flex-wrap:wrap;color:var(--muted);font-size:14px}
.hero-meta b{color:var(--ink);font-size:20px;font-weight:800;display:block}

/* editor mockup */
.mock{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.mock-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--bg-2)}
.mock-dot{width:11px;height:11px;border-radius:50%;background:#D9E5E1}
.mock-dot.o{background:#7FD8C8}
.mock-title{margin-left:10px;font-size:13px;color:var(--muted);font-weight:600}
.mock-toolbar{display:flex;gap:6px;padding:10px 14px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.tool{width:30px;height:30px;border-radius:8px;background:var(--brand-soft);display:grid;place-items:center;color:var(--brand)}
.tool.w{background:#EEF4F2;color:var(--ink-2)}
.mock-ai{margin:12px 14px;padding:10px 12px;border:1px dashed var(--brand);border-radius:12px;background:var(--brand-soft);display:flex;align-items:center;gap:10px;font-size:13px;color:#007A63;font-weight:600}
.mock-body{padding:14px 18px 22px}
.mock-h{height:14px;width:60%;background:#DCEDE8;border-radius:6px;margin-bottom:12px}
.mock-l{height:9px;background:#EAF3F0;border-radius:5px;margin-bottom:9px}
.mock-l.s{width:80%}
.mock-tag{display:inline-flex;gap:6px;margin-top:14px}
.mock-tag span{font-size:11px;padding:4px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-weight:700}

/* trust */
.trust{padding:34px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2)}
.trust p{text-align:center;color:var(--muted);font-size:13px;letter-spacing:.05em;margin-bottom:18px}
.trust-row{display:flex;gap:40px;justify-content:center;align-items:center;flex-wrap:wrap;opacity:.7}
.trust-row span{font-weight:800;font-size:18px;color:var(--ink-2);letter-spacing:.02em}

/* spotlight */
.spot{padding:84px 0;scroll-margin-top:72px}
.spot.alt{background:var(--bg-2)}
.spot-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.spot.reverse .spot-text{order:2}
.spot-no{font-size:14px;font-weight:800;color:var(--brand);letter-spacing:.1em;margin-bottom:12px}
.spot-ic{width:52px;height:52px;margin-bottom:16px}
.spot-ic img{width:100%;height:100%}
.spot h3{font-size:clamp(24px,2.6vw,32px);font-weight:800;line-height:1.2;margin-bottom:16px}
.spot p{font-size:16px;color:var(--ink-2);margin-bottom:18px}
.spot ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.spot li{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.spot li svg{flex:none;margin-top:2px}
.spot-visual{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px}
.vrow{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px solid var(--line)}
.vrow:last-child{border-bottom:none}
.vicon{width:38px;height:38px;border-radius:10px;background:var(--brand-soft);display:grid;place-items:center;color:var(--brand);flex:none}
.vtxt b{display:block;font-size:14px;font-weight:700}
.vtxt small{color:var(--muted);font-size:12px}
.vpill{margin-left:auto;font-size:11px;font-weight:700;color:var(--brand);background:var(--brand-soft);padding:4px 9px;border-radius:999px}
.vbars{display:flex;gap:8px;align-items:flex-end;height:90px;margin-top:6px}
.vbars i{flex:1;background:var(--brand-soft);border-radius:6px 6px 0 0;display:block}
.vbars i.h{background:var(--brand)}

/* toolbar section */
.toolbar-sec{padding:84px 0;background:var(--ink);color:#fff}
.toolbar-sec .eyebrow{color:#7FD8C8}
.toolbar-sec .eyebrow::before{background:#7FD8C8}
.toolbar-sec .h2{color:#fff}
.toolbar-sec .lead{color:#C7CEDA}
.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:42px}
.tcard{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:24px;transition:.25s}
.tcard:hover{background:rgba(255,255,255,.1);transform:translateY(-4px)}
.tcard .ti{width:42px;height:42px;border-radius:11px;background:rgba(0,194,154,.18);display:grid;place-items:center;color:#00C29A;margin-bottom:16px}
.tcard h4{font-size:17px;margin-bottom:8px}
.tcard p{font-size:14px;color:#AEB7C4}

/* workflow */
.flow{padding:84px 0}
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px;counter-reset:step}
.fstep{position:relative;padding:26px 22px;border:1px solid var(--line);border-radius:16px;background:var(--white)}
.fstep::before{counter-increment:step;content:"0" counter(step);font-size:30px;font-weight:850;color:var(--brand-soft);-webkit-text-stroke:1.4px var(--brand);display:block;margin-bottom:12px}
.fstep h4{font-size:17px;margin-bottom:8px}
.fstep p{font-size:14px;color:var(--muted)}

/* stats */
.stats{padding:70px 0;background:var(--brand);color:#fff;text-align:center}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat b{font-size:clamp(32px,4vw,46px);font-weight:850;display:block;line-height:1}
.stat span{font-size:14px;opacity:.92;margin-top:8px;display:block}

/* cta */
.cta{padding:90px 0;text-align:center}
.cta-card{background:linear-gradient(135deg,var(--brand),#00B894);border-radius:26px;padding:60px 30px;color:#fff;box-shadow:var(--shadow)}
.cta-card h2{font-size:clamp(28px,3.4vw,40px);font-weight:850;margin-bottom:14px}
.cta-card p{font-size:17px;opacity:.94;margin-bottom:28px}
.cta-card .btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);color:#fff}
.cta-card .btn-ghost:hover{background:rgba(255,255,255,.24)}

/* footer */
.footer{padding:54px 0 30px;border-top:1px solid var(--line);background:var(--bg-2)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:start}
.foot-brand p{font-size:14px;color:var(--muted);max-width:380px;margin-top:12px}
.foot-qr{display:flex;gap:36px;justify-content:flex-end}
.qr-item{text-align:center}
.qr-box{width:120px;height:120px;border:1px solid var(--line);border-radius:14px;background:#fff;padding:8px;margin-bottom:10px}
.qr-box img{width:100%;height:100%}
.qr-item span{font-size:13px;color:var(--ink-2);font-weight:500}
.icp-link{transition:.2s}
.icp-link:hover{color:var(--brand)}
.foot-bottom{margin-top:36px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media(max-width:980px){
  .hero-grid,.spot-grid{grid-template-columns:1fr;gap:36px}
  .spot.reverse .spot-text{order:0}
  .tool-grid,.flow-steps,.stats-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .foot-qr{justify-content:flex-start;gap:28px}
  .nav-links{display:none}
  .nav-toggle{display:block}
  .nav-links.open{display:flex;position:absolute;top:62px;left:0;right:0;flex-direction:column;background:var(--bg);padding:18px 24px;border-bottom:1px solid var(--line);gap:16px}
}
@media(max-width:560px){
  .tool-grid,.flow-steps,.stats-grid,.foot-grid{grid-template-columns:1fr}
  .hero{padding:120px 0 60px}
  .wrap{padding:0 18px}
}

/* ===== V2 差异化：居中 Hero + 排版工具栏演示 ===== */
.hero{padding:128px 0 30px}
.hero .wrap{max-width:840px}
.hero .reveal{text-align:center}
.hero p.sub{margin-left:auto;margin-right:auto}
.hero-cta,.hero-meta{justify-content:center}

.demo-sec{padding:24px 0 92px;scroll-margin-top:72px}
.sec-head{text-align:center;max-width:680px;margin:0 auto 48px}
.sec-head .kicker{font-size:14px;font-weight:700;color:var(--brand);letter-spacing:2px;text-transform:uppercase}
.sec-head h2{font-size:clamp(26px,3.2vw,36px);font-weight:800;margin:12px 0 14px}
.sec-head p{font-size:17px;color:var(--ink-2)}
.editor-wrap{max-width:1000px;margin:0 auto}
.window{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.win-bar{display:flex;align-items:center;gap:7px;padding:13px 16px;border-bottom:1px solid var(--line);background:var(--bg-2)}
.win-bar i{width:11px;height:11px;border-radius:50%;background:#D9E5E1}
.win-bar i:nth-child(1){background:#ff5f57}.win-bar i:nth-child(2){background:#febc2e}.win-bar i:nth-child(3){background:#28c840}
.win-bar .url{margin-left:12px;font-size:12px;color:var(--muted)}
.editor{display:grid;grid-template-columns:200px 1fr}
.sidebar{border-right:1px solid var(--line);background:var(--bg-2);padding:16px 14px}
.sidebar h5{font-size:12px;color:var(--muted);font-weight:700;letter-spacing:1px;margin-bottom:12px;padding-left:4px}
.tpl-thumb{display:flex;align-items:center;gap:10px;padding:8px;border-radius:10px;cursor:pointer;transition:.15s;margin-bottom:4px}
.tpl-thumb:hover{background:#fff;box-shadow:var(--shadow-sm)}
.tpl-thumb .d{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);font-size:14px}
.tpl-thumb .d.ai{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff}
.tpl-thumb span{font-size:12.5px;color:var(--ink-2);font-weight:500}
.main-col{display:flex;flex-direction:column}
.toolbar{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding:12px 14px;background:#fff;border-bottom:1px solid var(--line)}
.tb-group{display:flex;align-items:center;gap:4px;padding:0 8px;border-right:1px solid var(--line)}
.tb-group:last-child{border-right:none}
.tb-btn{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-width:42px;height:46px;padding:4px 6px;border-radius:9px;font-size:10px;color:var(--ink-2);background:transparent;cursor:pointer;transition:.15s}
.tb-btn:hover{background:var(--brand-soft);color:var(--brand)}
.tb-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8}
.tb-btn.ai{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff}
.tb-btn.ai:hover{filter:brightness(1.06);color:#fff}
.article{padding:20px 22px;font-size:13px;color:var(--ink-2)}
.article .lead{color:var(--brand);font-weight:600;font-size:12px;margin-bottom:6px}
.article h4{font-size:17px;color:var(--ink);margin-bottom:10px}
.article p{margin-bottom:10px}
.article .card{border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:10px;padding:10px 12px;background:var(--bg-2);margin:12px 0;font-size:12px}

@media(max-width:980px){
  .editor{grid-template-columns:1fr}
  .sidebar{display:none}
}