:root{
  --panel-green:#1E5223;
  --panel-green-dark:#143B19;
  --panel-green-deep:#0B240E;
  --panel-green-light:#2D7534;
  --panel-green-fade:rgba(30,82,35,0.08);
  --panel-green-border:rgba(30,82,35,0.25);
  --panel-rose:#EBD6E5;
  --panel-rose-light:#F7EDF5;
  --plastic-card:#FFFFFF;
  --plastic-glaze:#F3E9F1;
  --ink:#1F211F;
  --mute:#4D574E;
  --dim:#7A877C;
  --font-cn:"Chill Kai","寒蝉正楷","STKaiti","KaiTi","Noto Serif SC",serif;
  --font-en:"Abril Fatface","Georgia","Times New Roman",serif;
}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}
body{
  font-family:var(--font-cn);
  color:var(--ink);
  line-height:1.8;
  background-color:var(--panel-rose);
  background-image:
    linear-gradient(180deg, rgba(255,255,255,0.75) 0%, rgba(235,214,229,0.85) 100%),
    radial-gradient(circle at 18px 18px, rgba(30,82,35,0.08) 2px, transparent 3px),
    repeating-linear-gradient(0deg, transparent, transparent 35px, rgba(30,82,35,0.03) 36px),
    repeating-linear-gradient(90deg, transparent, transparent 35px, rgba(30,82,35,0.03) 36px);
  background-size:100% 100%, 36px 36px, 36px 36px, 36px 36px;
}
a{color:inherit;text-decoration:none;transition:.2s}img{display:block;max-width:100%;height:auto}
.w{max-width:1200px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--font-en);letter-spacing:.02em}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 26px;font-size:14.5px;font-weight:700;
  border:2px solid var(--panel-green);color:var(--panel-green);
  background:var(--plastic-card);border-radius:6px;
  box-shadow:0 3px 0 var(--panel-green-dark);
}
.btn:hover{background:var(--panel-green);color:#fff;transform:translateY(-1px);box-shadow:0 4px 0 var(--panel-green-deep)}
.btn.k{background:var(--panel-green);color:#fff;box-shadow:0 3px 0 var(--panel-green-deep)}
.btn.k:hover{background:var(--panel-green-light)}
.btn.sm{padding:7px 16px;font-size:13px}
.acts{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap}

/* 顶部全局导航栏（Sticky Header） */
.nv{position:sticky;top:0;z-index:50;background:rgba(235,214,229,0.96);border-bottom:3px solid var(--panel-green);box-shadow:0 4px 14px rgba(11,36,14,0.08)}
.nv .w{display:flex;align-items:center;justify-content:space-between;height:70px;gap:14px}
.nv .logo-box{display:flex;align-items:center;gap:10px}
.nv .logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:20px;color:var(--panel-green-deep)}
.nv .logo img{width:34px;height:34px;border-radius:6px;border:1px solid var(--panel-green)}
.nv .slogan{font-size:12px;color:var(--mute);padding-left:8px;border-left:1px solid var(--panel-green-border)}
.nv nav{display:flex;gap:14px;flex-wrap:wrap}
.nv nav a{font-size:14px;color:var(--ink);font-weight:600;padding:4px 8px;border-radius:4px}
.nv nav a:hover,.nv nav a.on{background:var(--panel-green-fade);color:var(--panel-green-dark)}
.nv nav a.highlight{color:var(--panel-green);font-weight:700;text-decoration:underline}
.nv .nv-acts{display:flex;gap:10px;align-items:center}

/* 首屏 Hero：插座面板与数据回路开关 */
.hero{padding:60px 0 40px;display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center}
.hero h1{font-size:38px;line-height:1.28;font-weight:900;color:var(--panel-green-deep);letter-spacing:.02em}
.hero .sub{font-size:16px;color:var(--mute);margin-top:16px;max-width:540px}
.hero .micro-trust{font-size:13px;color:var(--dim);margin-top:14px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.hero .micro-trust span{color:var(--panel-green);font-weight:700}
.hero .acts{margin-top:22px}
.socket-board{
  position:relative;padding:18px;background:var(--plastic-glaze);
  border:2px solid var(--panel-green);border-top:8px solid var(--panel-green);
  border-radius:8px;box-shadow:6px 6px 0 var(--panel-green);
}
.socket-board .main-card{
  background:var(--plastic-card);border:2px solid var(--panel-green);
  border-radius:6px;padding:10px;
}
.socket-board .switch-badge{
  position:absolute;top:-12px;left:18px;
  background:var(--panel-green);color:#fff;
  padding:3px 12px;border-radius:4px;font-size:12px;font-weight:700;font-family:var(--font-en);
}
.socket-board .float-tag{
  position:absolute;bottom:-18px;right:-12px;
  background:var(--panel-green-dark);color:#fff;
  border-radius:6px;padding:8px 16px;display:flex;align-items:center;gap:10px;
  box-shadow:3px 3px 0 var(--panel-green-deep);font-family:var(--font-en);
}
.socket-board .float-tag b{font-size:22px;color:var(--panel-rose)}

/* 标题区通用 */
.sec{padding:64px 0}
.sec-hd{text-align:center;max-width:680px;margin:0 auto 36px}
.sec-hd .mono{font-size:16px;color:var(--panel-green-dark);text-transform:uppercase;font-weight:700;letter-spacing:.12em}
.sec-hd h2{font-size:33px;color:var(--panel-green-deep);margin:6px 0 8px;font-weight:800}
.sec-hd p{color:var(--mute);font-size:15px}

/* 全端官方下载矩阵（4列插座面板孔位卡片） */
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.socket-card{
  background:var(--plastic-card);border:2px solid var(--panel-green);border-top:6px solid var(--panel-green);border-radius:6px;
  padding:24px 20px;box-shadow:4px 4px 0 var(--panel-green);display:flex;flex-direction:column;
  text-align:center;position:relative;
}
.socket-card:before{
  content:"";position:absolute;top:8px;left:50%;transform:translateX(-50%);
  width:16px;height:4px;border-radius:2px;background:var(--panel-green-fade);border:1px solid var(--panel-green-border);
}
.socket-card .icon{font-size:32px;margin:8px 0}
.socket-card h3{font-size:18px;color:var(--panel-green-deep)}
.socket-card .subt{font-size:13px;color:var(--dim);margin-bottom:12px;font-family:var(--font-en)}
.socket-card p{font-size:13.5px;color:var(--mute);flex:1;margin-bottom:18px;line-height:1.6}
.socket-card .btn-grp{display:flex;flex-direction:column;gap:8px}
.socket-card .btn{width:100%}

/* 钉钉网页版专项引导区 */
.web-promo-sec{
  background:var(--plastic-card);border:2px solid var(--panel-green);border-top:8px solid var(--panel-green);
  border-radius:8px;padding:36px;margin:30px 0;box-shadow:6px 6px 0 var(--panel-green);
  display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center;
}
.web-promo-sec h2{font-size:28px;color:var(--panel-green-deep);margin-bottom:12px;font-weight:800}
.web-promo-sec p{color:var(--mute);font-size:15px;margin-bottom:16px}
.web-promo-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:20px}
.web-promo-item{background:var(--plastic-glaze);border:1px solid var(--panel-green-border);border-radius:6px;padding:12px 14px}
.web-promo-item b{display:block;color:var(--panel-green-deep);font-size:14.5px;margin-bottom:4px}
.web-promo-item span{font-size:12.5px;color:var(--mute);line-height:1.5;display:block}

/* 核心功能与办公协同能力（6列卡片） */
.grid6{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.feat-card{
  background:var(--plastic-card);border:2px solid var(--panel-green);border-radius:6px;
  padding:20px 14px;box-shadow:3px 3px 0 var(--panel-green);text-align:center;transition:.2s;
}
.feat-card:hover{transform:translateY(-2px);background:var(--plastic-glaze)}
.feat-card .ico{font-size:28px;margin-bottom:8px}
.feat-card h3{font-size:16px;color:var(--panel-green-deep);margin-bottom:6px}
.feat-card p{font-size:12.5px;color:var(--mute);line-height:1.55}

/* 4大核心能力模块（图文交错） */
.sol-pair{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin-bottom:44px}
.sol-pair.rev{direction:rtl}
.sol-pair.rev .sol-txt{direction:ltr}
.sol-img{
  background:var(--plastic-card);border:2px solid var(--panel-green);border-top:6px solid var(--panel-green);border-radius:8px;
  padding:10px;box-shadow:5px 5px 0 var(--panel-green);
}
.sol-txt h3{font-size:25px;color:var(--panel-green-deep);margin-bottom:12px;font-weight:800}
.sol-txt p{font-size:15px;color:var(--mute);margin-bottom:14px}
.sol-txt ul{list-style:none;margin-bottom:18px}
.sol-txt li{padding:4px 0 4px 18px;position:relative;font-size:14px;color:var(--ink)}
.sol-txt li:before{content:"📊";position:absolute;left:0;font-size:11px;top:4px}

/* 官方正版与安全背书 */
.security-sec{
  background:var(--panel-green-dark);color:#fff;border-radius:8px;
  padding:44px 30px;margin:30px auto;border:2px solid var(--panel-green-deep);
  box-shadow:5px 5px 0 var(--panel-green-deep);
}
.security-sec .sec-hd h2{color:#fff}
.security-sec .sec-hd p{color:var(--panel-rose);opacity:.9}
.security-sec .sec-hd .mono{color:var(--panel-rose)}
.sec-trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;text-align:left}
.sec-trust-card{background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.2);border-radius:6px;padding:20px}
.sec-trust-card h3{font-size:18px;color:#fff;margin-bottom:8px}
.sec-trust-card p{font-size:13.5px;color:var(--panel-rose);opacity:.9;line-height:1.6}

/* 资讯：三列图文卡 */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--plastic-card);border:2px solid var(--panel-green);border-top:5px solid var(--panel-green);border-radius:6px;
  overflow:hidden;box-shadow:3px 3px 0 var(--panel-green);display:flex;flex-direction:column}
.news-card .img-wrap{border-bottom:2px solid var(--panel-green);overflow:hidden}
.news-card .cnt{padding:18px 18px 20px;flex:1;display:flex;flex-direction:column}
.news-card .tag{font-size:13px;color:var(--panel-green-dark);font-family:var(--font-en);margin-bottom:6px;font-weight:700}
.news-card h3{font-size:17px;color:var(--panel-green-deep);margin-bottom:8px}
.news-card p{font-size:13.5px;color:var(--mute);line-height:1.6;flex:1}

/* FAQ：手风琴 + 居中次按钮 */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-wrap details{
  background:var(--plastic-card);border:2px solid var(--panel-green);border-radius:6px;
  margin-bottom:12px;box-shadow:2px 2px 0 var(--panel-green);scroll-margin-top:100px;
}
.faq-wrap summary{
  list-style:none;cursor:pointer;padding:16px 20px;
  font-size:16px;font-weight:700;color:var(--panel-green-deep);
  display:flex;justify-content:space-between;align-items:center;
}
.faq-wrap summary::-webkit-details-marker{display:none}
.faq-wrap summary:after{content:"＋";font-family:var(--font-en);font-size:22px;color:var(--panel-green)}
.faq-wrap details[open] summary:after{content:"−"}
.faq-wrap details div{padding:0 20px 18px;font-size:14px;color:var(--mute);line-height:1.7}
.faq-action{text-align:center;margin-top:28px}

/* 行动条 CTA：居中标题、卖点、按钮 */
.cta-sec{
  background:var(--plastic-card);border:2px solid var(--panel-green);border-top:8px solid var(--panel-green);border-radius:8px;
  padding:50px 30px;margin:50px auto 20px;text-align:center;
  box-shadow:6px 6px 0 var(--panel-green);
}
.cta-sec h2{font-size:34px;color:var(--panel-green-deep);font-weight:900;margin-bottom:10px}
.cta-sec p{font-size:16px;color:var(--mute);max-width:560px;margin:0 auto 20px}
.cta-sec .acts{justify-content:center}

/* 子页专用 */
.sub-hero{padding:50px 0 20px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.sub-hero h1{font-size:36px;color:var(--panel-green-deep);font-weight:900;line-height:1.26}
.sub-hero p{color:var(--mute);font-size:15px;margin-top:12px}
.sub-hero .shot{background:var(--plastic-card);border:2px solid var(--panel-green);border-top:6px solid var(--panel-green);border-radius:8px;padding:10px;box-shadow:5px 5px 0 var(--panel-green)}

.steps-list{list-style:none;counter-reset:st}
.steps-list li{
  counter-increment:st;display:grid;grid-template-columns:46px 1fr;gap:14px;
  background:var(--plastic-card);border:2px solid var(--panel-green);border-radius:6px;
  padding:14px 18px;margin-bottom:12px;box-shadow:2px 2px 0 var(--panel-green);
}
.steps-list li:before{
  content:counter(st);display:grid;place-items:center;
  width:36px;height:36px;background:var(--panel-green);color:#fff;
  border-radius:4px;font-family:var(--font-en);font-weight:700;font-size:18px;
}
.steps-list b{display:block;font-size:16px;color:var(--panel-green-deep)}
.steps-list span{font-size:13.5px;color:var(--mute)}

.about-contact-duo{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:30px}
.box-panel{
  background:var(--plastic-card);border:2px solid var(--panel-green);border-top:6px solid var(--panel-green);border-radius:8px;
  padding:28px 24px;box-shadow:4px 4px 0 var(--panel-green);scroll-margin-top:100px;
}
.box-panel h2{font-size:22px;color:var(--panel-green-deep);margin-bottom:10px}
.box-panel p{font-size:14px;color:var(--mute);line-height:1.7}

/* 页脚 */
.ft{background:var(--panel-green-deep);color:var(--panel-rose);margin-top:60px;border-top:3px solid var(--panel-green)}
.ft .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:30px;padding:50px 24px 30px}
.ft .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:#fff}
.ft .brand img{width:32px;height:32px;border-radius:4px;background:#fff;padding:2px}
.ft .cols p{font-size:13.5px;color:var(--panel-rose);margin-top:12px;line-height:1.65;opacity:.9}
.ft h4{font-family:var(--font-en);font-size:16px;letter-spacing:.08em;color:#fff;margin-bottom:12px;text-transform:uppercase}
.ft ul{list-style:none}.ft li{padding:3px 0;font-size:13.5px}.ft li a:hover{color:#fff;text-decoration:underline}
.ft .legal{border-top:1px solid rgba(235,214,229,0.18);padding:18px 24px 28px;font-size:12.5px;color:var(--panel-rose);text-align:center;line-height:2;opacity:.85}

@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}html{scroll-behavior:auto}}
@media(max-width:1020px){
  .nv nav,.nv .slogan{display:none}
  .hero,.sub-hero,.sol-pair,.sol-pair.rev,.about-contact-duo,.web-promo-sec{grid-template-columns:1fr;direction:ltr}
  .grid4,.sec-trust-grid{grid-template-columns:1fr 1fr}
  .grid6{grid-template-columns:repeat(3,1fr)}
  .grid3{grid-template-columns:1fr}
  .ft .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .hero h1{font-size:28px}
  .grid4,.grid6,.sec-trust-grid,.web-promo-grid,.ft .cols{grid-template-columns:1fr}
  .sec-hd h2,.cta-sec h2{font-size:24px}
}