*{box-sizing:border-box}
:root{
  --bg:#f5f7fc;
  --paper:#ffffff;
  --ink:#131725;
  --muted:#687187;
  --line:#e4e8f2;
  --purple:#6840f0;
  --violet:#8d5cff;
  --blue:#337cff;
  --cyan:#18bfd0;
  --orange:#ff7540;
  --gold:#ffb33f;
  --green:#24b985;
  --shadow:0 24px 70px rgba(37,45,84,.12);
}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--bg);
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",Arial,sans-serif;
  line-height:1.65;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
.container{width:min(1200px,calc(100% - 40px));margin:0 auto}

.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.88);
  border-bottom:1px solid rgba(58,68,105,.08);
  backdrop-filter:blur(18px);
}
.nav{
  min-height:76px;
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;
}
.brand{display:flex;align-items:center;gap:11px;min-width:210px}
.brand img{
  width:46px;height:46px;border-radius:14px;
  box-shadow:0 10px 24px rgba(104,64,240,.22);
}
.brand strong,.brand small{display:block}
.brand strong{font-size:18px;line-height:1.2}
.brand small{font-size:11px;color:var(--muted);margin-top:3px}
nav{display:flex;gap:30px;font-size:14px;color:#51596e}
nav a:hover{color:var(--purple)}
.nav-btn{
  padding:11px 18px;border-radius:12px;
  color:#fff;font-size:13px;font-weight:800;
  background:linear-gradient(135deg,var(--purple),var(--blue));
  box-shadow:0 12px 26px rgba(78,84,220,.22);
}

.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 12% 18%,rgba(24,191,208,.15),transparent 28%),
    radial-gradient(circle at 88% 13%,rgba(104,64,240,.17),transparent 30%),
    linear-gradient(145deg,#fbfcff 0%,#f4f6fc 60%,#fff8f2 100%);
}
.hero-grid-bg{
  position:absolute;inset:0;opacity:.24;
  background-image:
    linear-gradient(rgba(91,74,163,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(91,74,163,.09) 1px,transparent 1px);
  background-size:50px 50px;
  mask-image:linear-gradient(to bottom,#000,transparent 92%);
}
.hero-orb{position:absolute;border-radius:50%;filter:blur(6px)}
.orb-left{width:300px;height:300px;left:-120px;bottom:0;background:rgba(24,191,208,.12)}
.orb-right{width:430px;height:430px;right:-140px;top:80px;background:rgba(104,64,240,.11)}

.hero-layout{
  position:relative;z-index:2;
  min-height:740px;
  display:grid;grid-template-columns:.92fr 1.08fr;
  gap:65px;align-items:center;
  padding:82px 0 96px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 13px;border-radius:999px;
  color:#5e43d1;background:rgba(104,64,240,.08);
  border:1px solid rgba(104,64,240,.12);
  font-size:12px;font-weight:900;letter-spacing:.08em;
  margin-bottom:22px;
}
.eyebrow span{
  width:8px;height:8px;border-radius:50%;background:var(--green);
  box-shadow:0 0 0 6px rgba(36,185,133,.12);
}
h1{
  margin:0 0 22px;
  font-size:62px;line-height:1.08;letter-spacing:-.04em;
}
h1 em{
  font-style:normal;
  background:linear-gradient(90deg,var(--purple),var(--blue),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-copy>p{
  max-width:610px;margin:0 0 29px;
  font-size:18px;color:var(--muted);
}
.hero-actions{display:flex;gap:13px;flex-wrap:wrap}
.btn{
  min-height:50px;padding:0 23px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border:1px solid transparent;font-weight:850;transition:.2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn.primary{
  color:#fff;
  background:linear-gradient(135deg,var(--purple),var(--blue));
  box-shadow:0 15px 32px rgba(78,84,220,.23);
}
.btn.ghost{background:#fff;border-color:var(--line);color:#283047}
.trust-list{
  display:flex;flex-wrap:wrap;gap:17px;margin-top:25px;
  font-size:13px;color:#747c90;
}
.trust-list span::before{content:"✓";color:var(--green);font-weight:900;margin-right:6px}

.hero-demo{position:relative;min-width:0}
.ai-ring{
  position:absolute;border-radius:50%;pointer-events:none;
  border:1px solid rgba(104,64,240,.17);
}
.ring-one{width:500px;height:500px;right:-90px;top:-70px}
.ring-two{width:350px;height:350px;left:-60px;bottom:-75px;border-style:dashed;border-color:rgba(51,124,255,.2)}
.hero-window{
  position:relative;z-index:2;overflow:hidden;
  border-radius:23px;background:#fff;
  border:1px solid rgba(94,91,128,.16);
  box-shadow:0 32px 75px rgba(38,33,73,.20);
  transform:perspective(1200px) rotateY(-4deg) rotateX(1deg);
}
.window-bar{
  height:51px;padding:0 16px;
  display:grid;grid-template-columns:90px 1fr auto;
  align-items:center;
  background:#f8f9fd;border-bottom:1px solid #e5e8f1;
}
.window-dots{display:flex;gap:7px}
.window-dots i{
  width:9px;height:9px;border-radius:50%;background:#ff775f;
}
.window-dots i:nth-child(2){background:#ffc24a}
.window-dots i:nth-child(3){background:#44c98c}
.window-bar b{
  text-align:center;font-size:12px;color:#5e6579;font-weight:800;
}
.online{
  display:flex;align-items:center;gap:6px;
  padding:5px 9px;border-radius:999px;
  color:#188864;background:#e9faf4;
  font-size:10px;font-weight:900;
}
.online i{width:6px;height:6px;border-radius:50%;background:#25b986}
.hero-screen{
  overflow:hidden;background:#eef3f9;
  aspect-ratio:16/10;
}
.hero-screen img{
  width:100%;height:100%;
  object-fit:cover;object-position:top left;
}
.float-card{
  position:absolute;z-index:4;
  min-width:150px;padding:12px 14px;border-radius:14px;
  background:rgba(255,255,255,.96);
  border:1px solid rgba(104,64,240,.11);
  box-shadow:0 15px 34px rgba(44,40,79,.13);
}
.float-card b,.float-card small{display:block}
.float-card b{font-size:12px}
.float-card small{font-size:10px;color:var(--muted);margin-top:2px}
.float-a{left:-42px;top:72px}
.float-b{right:-34px;top:210px}
.float-c{left:35px;bottom:-28px}

.flow-strip{position:relative;z-index:5;margin-top:-38px}
.flow-grid{
  display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;
  gap:13px;align-items:center;
  padding:22px 26px;border-radius:22px;
  background:rgba(255,255,255,.95);
  border:1px solid rgba(78,88,130,.08);
  box-shadow:var(--shadow);
}
.flow-item{display:flex;align-items:center;justify-content:center;gap:12px}
.flow-item>b{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;color:#fff;font-size:12px;
  background:linear-gradient(135deg,var(--purple),var(--blue));
}
.flow-item strong,.flow-item small{display:block}
.flow-item strong{font-size:14px}
.flow-item small{font-size:11px;color:var(--muted)}
.flow-arrow{color:#b4b8c7}

.section{padding:100px 0}
.section-title{text-align:center;max-width:760px;margin:0 auto 48px}
.section-title>span{
  display:inline-block;color:var(--purple);
  font-size:12px;font-weight:900;letter-spacing:.2em;margin-bottom:12px;
}
.section-title h2{font-size:42px;line-height:1.2;margin:0 0 12px}
.section-title p{margin:0;color:var(--muted)}

.product-card{
  display:grid;grid-template-columns:.85fr 1.15fr;
  gap:44px;align-items:center;
  padding:38px;border-radius:28px;
  background:#fff;border:1px solid var(--line);
  box-shadow:0 18px 55px rgba(46,55,96,.09);
}
.product-card+.product-card{margin-top:32px}
.product-card.reverse{grid-template-columns:1.1fr .9fr}
.product-label{
  display:inline-flex;padding:6px 12px;border-radius:999px;
  font-size:12px;font-weight:900;
}
.product-label.purple{color:#5e3bd2;background:rgba(104,64,240,.09)}
.product-label.orange{color:#d85c25;background:rgba(255,117,64,.10)}
.product-copy h3{font-size:38px;line-height:1.2;margin:13px 0 11px}
.product-copy>p{margin:0 0 19px;color:var(--muted)}
.feature-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;
}
.feature-grid>div{display:flex;gap:8px;font-size:14px;color:#4e566b}
.feature-grid i{font-style:normal;color:var(--green);font-weight:900}
.product-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:25px}
.inline-link{color:var(--purple);font-size:14px;font-weight:850}
.status-note{
  margin-top:23px;padding:14px 16px;border-radius:14px;
  color:#9b5926;background:#fff6e8;border:1px solid #f0d4ae;
  font-size:13px;font-weight:750;
}

.software-frame{
  position:relative;overflow:hidden;border-radius:21px;
  background:#eef2f8;border:1px solid #dde3ee;
  box-shadow:0 22px 50px rgba(42,49,84,.16);
}
.software-frame::before{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  border-radius:inherit;border:1px solid rgba(255,255,255,.7);
}
.frame-top{
  position:relative;z-index:3;
  min-height:45px;padding:0 15px;
  display:grid;grid-template-columns:80px 1fr auto;
  align-items:center;background:#f8f9fc;border-bottom:1px solid #dfe4ee;
}
.frame-top>div{display:flex;gap:7px}
.frame-top i{width:9px;height:9px;border-radius:50%;background:#ff775f}
.frame-top i:nth-child(2){background:#ffc24a}
.frame-top i:nth-child(3){background:#43c98b}
.frame-top span{text-align:center;font-size:11px;color:#5d6578}
.frame-top em{font-style:normal;font-size:9px;font-weight:900;letter-spacing:.12em;color:#8c91a1}
.frame-image{
  position:relative;z-index:1;
  background:#fff;overflow:hidden;
}
.frame-image img{
  width:100%;height:auto;max-height:510px;object-fit:contain;object-position:top;
}
.plugin-image img{max-height:470px}
.frame-glow{
  position:absolute;z-index:0;width:240px;height:240px;border-radius:50%;filter:blur(20px);
  right:-90px;bottom:-110px;opacity:.28;
}
.purple-frame .frame-glow{background:var(--purple)}
.orange-frame .frame-glow{background:var(--orange)}

.ai-features{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(circle at 15% 20%,rgba(24,191,208,.18),transparent 28%),
    radial-gradient(circle at 85% 10%,rgba(141,92,255,.22),transparent 28%),
    linear-gradient(135deg,#17162d,#25245a 56%,#183f70);
}
.light-title h2{color:#fff}
.light-title p{color:#c9cbe0}
.light-title>span{color:#74e2d5}
.ai-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ai-card{
  padding:27px;border-radius:21px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.11);
  backdrop-filter:blur(10px);
}
.ai-icon{
  width:45px;height:45px;border-radius:13px;
  display:grid;place-items:center;font-size:12px;font-weight:900;
  background:linear-gradient(135deg,var(--purple),var(--cyan));
  box-shadow:0 12px 26px rgba(36,53,142,.28);
}
.ai-card h3{font-size:21px;margin:17px 0 8px}
.ai-card p{margin:0;color:#c8cbdf;font-size:14px}

.manual-section{
  background:linear-gradient(135deg,#f0edff,#edf6ff 55%,#fff3e9);
}
.manual-card{
  display:grid;grid-template-columns:auto 1fr auto;
  gap:25px;align-items:center;
  padding:38px 42px;border-radius:27px;
  background:rgba(255,255,255,.92);
  border:1px solid rgba(104,64,240,.11);
  box-shadow:var(--shadow);
}
.pdf-icon{
  width:82px;height:82px;border-radius:21px;
  display:grid;grid-template-columns:1fr auto;grid-template-rows:auto 1fr;
  align-items:center;padding:13px 15px;
  color:#fff;background:linear-gradient(135deg,var(--orange),var(--gold));
  box-shadow:0 15px 30px rgba(255,117,64,.23);
}
.pdf-icon span{grid-column:1/3;font-size:13px;font-weight:900}
.pdf-icon b{font-size:26px;line-height:1}
.pdf-icon small{font-size:11px}
.manual-copy>span{font-size:12px;color:var(--purple);font-weight:900}
.manual-copy h2{font-size:28px;line-height:1.3;margin:5px 0 8px}
.manual-copy p{margin:0;color:var(--muted)}
.manual-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}

.security-card{
  display:grid;grid-template-columns:auto 1fr auto;
  gap:25px;align-items:center;
  padding:38px;border-radius:28px;color:#fff;
  background:linear-gradient(135deg,#201a43,#352b77 62%,#205184);
  box-shadow:var(--shadow);
}
.shield{
  width:70px;height:70px;border-radius:20px;
  display:grid;place-items:center;font-size:28px;font-weight:900;
  background:linear-gradient(135deg,#25c58f,#17a8d0);
}
.security-copy>span{
  display:block;color:#77e2d3;font-size:11px;font-weight:900;letter-spacing:.18em;
}
.security-copy h2{font-size:31px;margin:5px 0 8px}
.security-copy p{margin:0;color:#d4d5e6;max-width:740px}
.domain-box{
  min-width:210px;padding:18px 22px;text-align:center;border-radius:16px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);
}
.domain-box small,.domain-box strong{display:block}
.domain-box small{color:#bcc2d9}
.domain-box strong{font-size:20px;margin-top:2px}

footer{padding:31px 0;background:#edf0f6;border-top:1px solid #dfe3ec}
.footer-row{display:flex;align-items:center;justify-content:space-between;gap:22px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand img{width:43px;height:43px;border-radius:13px}
.footer-brand strong,.footer-brand small{display:block}
.footer-brand small{font-size:11px;color:var(--muted)}
.footer-row>p{margin:0;color:#737b8d;font-size:13px}

@media (max-width:1050px){
  nav{display:none}
  .hero-layout{grid-template-columns:1fr;gap:55px;text-align:center;min-height:auto}
  .hero-copy>p{margin-left:auto;margin-right:auto}
  .hero-actions,.trust-list{justify-content:center}
  .hero-demo{max-width:760px;margin:0 auto;width:100%}
  .flow-grid{grid-template-columns:1fr 1fr}
  .flow-arrow{display:none}
  .product-card,.product-card.reverse{grid-template-columns:1fr}
  .product-card.reverse .software-frame{order:2}
  .product-card.reverse .product-copy{order:1}
  .manual-card,.security-card{grid-template-columns:1fr;text-align:center}
  .pdf-icon,.shield{margin:0 auto}
  .manual-actions{justify-content:center}
  .domain-box{margin:0 auto}
}
@media (max-width:700px){
  .container{width:min(100% - 24px,1200px)}
  .nav{min-height:69px}
  .nav-btn{display:none}
  .brand{min-width:auto}
  h1{font-size:43px}
  .hero-layout{padding:62px 0 85px}
  .hero-copy>p{font-size:16px}
  .window-bar{grid-template-columns:70px 1fr}
  .online{display:none}
  .hero-window{transform:none}
  .float-card{display:none}
  .flow-strip{margin-top:-25px}
  .flow-grid{grid-template-columns:1fr;padding:18px}
  .section{padding:74px 0}
  .section-title h2{font-size:33px}
  .product-card{padding:23px;border-radius:22px}
  .product-copy h3{font-size:31px}
  .feature-grid{grid-template-columns:1fr}
  .ai-card-grid{grid-template-columns:1fr}
  .manual-card,.security-card{padding:27px 22px}
  .manual-copy h2{font-size:24px}
  .security-copy h2{font-size:26px}
  .footer-row{flex-direction:column;align-items:flex-start}
}


/* 顶部一行官方提醒 */
.site-notice{
  position:relative;
  z-index:60;
  min-height:31px;
  display:flex;
  align-items:center;
  color:#dce5ff;
  background:linear-gradient(90deg,#221b55,#343487 55%,#245c91);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.notice-inner{
  min-height:31px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:12px;
  line-height:1.35;
  text-align:center;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.notice-inner strong{color:#fff}
.notice-dot{
  flex:0 0 auto;
  width:7px;height:7px;border-radius:50%;
  background:#2bd5ac;
  box-shadow:0 0 0 5px rgba(43,213,172,.13);
}

/* 开发者说明与版权声明 */
.developer-section{
  padding-top:25px;
  background:linear-gradient(180deg,#f5f7fc,#eef1f8);
}
.developer-card{
  overflow:hidden;
  border-radius:27px;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:0 20px 58px rgba(41,48,86,.10);
}
.developer-heading{
  padding:31px 36px 23px;
  background:
    radial-gradient(circle at 86% 10%,rgba(104,64,240,.15),transparent 30%),
    linear-gradient(135deg,#191733,#2e2863 64%,#21517e);
  color:#fff;
}
.developer-heading>span{
  display:block;
  color:#6de2d2;
  font-size:11px;
  font-weight:900;
  letter-spacing:.18em;
}
.developer-heading h2{
  margin:6px 0 0;
  font-size:29px;
}
.statement-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
}
.statement-item{
  padding:30px 36px;
}
.statement-item+.statement-item{
  border-left:1px solid var(--line);
}
.statement-item b{
  display:block;
  margin-bottom:9px;
  font-size:17px;
}
.statement-item b::before{
  content:"●";
  color:var(--green);
  margin-right:9px;
  font-size:11px;
}
.statement-item.warning b::before{color:var(--orange)}
.statement-item p{
  margin:0;
  color:#626b80;
  font-size:14px;
}
.statement-footer{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:10px 28px;
  padding:14px 25px;
  color:#747c8e;
  background:#f6f7fb;
  border-top:1px solid var(--line);
  font-size:12px;
}
.statement-footer span::before{
  content:"✓";
  color:var(--green);
  font-weight:900;
  margin-right:6px;
}

@media (max-width:780px){
  .notice-inner{
    justify-content:flex-start;
    font-size:11px;
  }
  .statement-grid{grid-template-columns:1fr}
  .statement-item+.statement-item{
    border-left:0;
    border-top:1px solid var(--line);
  }
  .developer-heading,.statement-item{padding-left:24px;padding-right:24px}
}