:root{
  --mint-900:#0b3b2e;
  --mint-800:#0f5140;
  --mint-700:#0f7d5c;
  --mint-600:#0f8f68;
  --mint-500:#23c897;
  --mint-100:#dff7ec;
  --mint-50:#f2fcf8;
  --ink:#122a24;
  --ink-soft:#41645a;
  --line:#d3ece1;
  --white:#ffffff;
  --shadow:0 10px 30px rgba(18,84,64,.08);
  --radius:18px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  background-color:#f3fcf8;
  background-image:
    radial-gradient(900px 480px at 6% -8%, #d6f6e7 0%, rgba(214,246,231,0) 62%),
    radial-gradient(760px 420px at 100% 0%, #e4f2ff 0%, rgba(228,242,255,0) 58%),
    radial-gradient(700px 400px at 50% 100%, #e9fbf2 0%, rgba(233,251,242,0) 60%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--mint-900);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a{color:var(--mint-700);text-decoration:none;}
img{max-width:100%;}
.ai-page-logo{max-width:100%;height:auto;display:block;max-height:40px;width:auto;}
.ai-page-image{max-width:100%;height:auto;display:block;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
section[id]{scroll-margin-top:88px;}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:70px;}
.brand{display:flex;align-items:center;gap:9px;flex-shrink:0;}
.brand-name{font-size:16px;font-weight:800;color:var(--mint-900);letter-spacing:.5px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;}
.nav-links{display:flex;align-items:center;gap:0;margin:0;padding:0;}
.nav-links li{list-style:none;}
.nav-links a{
  display:block;padding:10px 9px;font-size:14px;color:#1d4038;border-radius:10px;
  white-space:nowrap;transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover{color:var(--mint-700);background:var(--mint-100);}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;font-family:inherit;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease;
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-primary{background:linear-gradient(135deg,#26cb9b,#0e8a64);color:#fff;box-shadow:0 12px 24px rgba(15,143,104,.26);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 32px rgba(15,143,104,.34);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--mint-700);border-color:#a9e6d1;}
.btn-ghost:hover{background:#eafaf3;transform:translateY(-2px);color:var(--mint-800);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--mint-800);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{background:var(--mint-100);}

/* 首屏 */
.hero{position:relative;padding:66px 0 46px;overflow:hidden;}
.hero::after{
  content:"";position:absolute;width:460px;height:460px;right:-150px;top:-180px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%, rgba(38,203,155,.24), rgba(38,203,155,0) 70%);
  pointer-events:none;
}
.hero::before{
  content:"";position:absolute;width:360px;height:360px;left:-140px;bottom:-180px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%, rgba(120,190,255,.18), rgba(120,190,255,0) 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:#e3f9ee;border:1px solid #c3efdd;color:#0f6b52;font-size:13px;font-weight:600;letter-spacing:.3px;
}
.hero h1{font-size:clamp(29px,4.1vw,45px);font-weight:800;margin:18px 0 16px;letter-spacing:.5px;color:#0a3327;}
.hero-lead{font-size:16px;color:var(--ink-soft);max-width:590px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-note{margin-top:16px;font-size:13.5px;color:#5c8177;}
.hero-panel{
  background:linear-gradient(160deg,#ffffff,#f0fdf7);
  border:1px solid #cdeee0;border-radius:22px;padding:26px 24px;
  box-shadow:0 22px 48px rgba(18,84,64,.11);
}
.panel-title{font-size:16px;margin-bottom:14px;color:var(--mint-800);}
.panel-list li{
  display:flex;align-items:flex-start;gap:10px;padding:11px 0;font-size:14.5px;
  color:#2c5048;border-bottom:1px dashed #d9f0e7;
}
.panel-list li:last-child{border-bottom:none;}
.dot{width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#26cb9b,#0e8a64);margin-top:10px;flex-shrink:0;}
.panel-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--mint-600);
  transition:gap .2s ease,color .2s ease;
}
.panel-link:hover{gap:11px;color:var(--mint-800);}

/* 数据指标 */
.stats{padding:0 0 8px;}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px 18px;box-shadow:var(--shadow);
}
.stat{text-align:center;padding:4px 6px;}
.stat strong{display:block;font-size:28px;font-weight:800;color:var(--mint-600);letter-spacing:.5px;}
.stat span{display:block;font-size:13.5px;color:var(--ink-soft);margin-top:2px;}

/* 通用区块 */
.section{padding:64px 0;}
.section-head{max-width:740px;margin:0 auto 38px;text-align:center;}
.section-head h2{font-size:clamp(23px,3vw,31px);margin:12px 0 12px;color:#0a3327;}
.section-head p{font-size:15.5px;color:var(--ink-soft);}
.section-head.left{margin-left:0;text-align:left;}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  box-shadow:0 6px 18px rgba(18,84,64,.05);
  display:flex;flex-direction:column;gap:10px;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.card:hover{transform:translateY(-5px);box-shadow:0 18px 38px rgba(18,84,64,.13);border-color:#a9e6d1;}
.card h3{font-size:17px;color:#0c352a;}
.card p{font-size:14.5px;color:var(--ink-soft);}
.card-icon{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#dff7ec,#eafaf9);border:1px solid #c8eede;color:var(--mint-600);flex-shrink:0;
}
.card-icon svg{width:22px;height:22px;}

/* 一站式流水线 */
.flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.flow-step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;
  box-shadow:0 6px 18px rgba(18,84,64,.05);transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(18,84,64,.12);border-color:#a9e6d1;}
.flow-step h3{font-size:16px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--ink-soft);}
.flow-step::after{
  content:"";position:absolute;left:22px;top:0;width:42px;height:3px;border-radius:0 0 4px 4px;
  background:linear-gradient(90deg,#26cb9b,#8fe3c8);
}

/* 服务网络 */
.net-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.net-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.net-item:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(18,84,64,.11);border-color:#a9e6d1;}
.net-item h3{font-size:15.5px;color:var(--mint-800);margin-bottom:6px;}
.net-item p{font-size:14px;color:var(--ink-soft);}

/* 标准流程 */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 18px;
  box-shadow:0 6px 18px rgba(18,84,64,.05);transition:transform .24s ease,box-shadow .24s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(18,84,64,.11);}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,#26cb9b,#0e8a64);color:#fff;font-size:14px;font-weight:700;margin-bottom:12px;
}
.step h3{font-size:15.5px;margin-bottom:6px;}
.step p{font-size:13.5px;color:var(--ink-soft);}

/* 案例 */
.case-card{gap:12px;}
.case-media{
  aspect-ratio:16/10;background:#eefaf4;border-radius:14px;overflow:hidden;
  display:flex;align-items:center;justify-content:center;border:1px solid #e2f4ec;
}
.case-media img{width:100%;height:100%;object-fit:contain;display:block;}
.showcase{margin-top:22px;}
.shot{margin:0;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px;box-shadow:0 6px 18px rgba(18,84,64,.05);transition:transform .24s ease,box-shadow .24s ease;}
.shot:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(18,84,64,.12);}
.shot-media{aspect-ratio:4/3;background:#eefaf4;border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;}
.shot-media img{width:100%;height:100%;object-fit:contain;display:block;}
.shot figcaption{font-size:13.5px;color:var(--ink-soft);text-align:center;padding-top:10px;}

/* 表格 */
.table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);
  -webkit-overflow-scrolling:touch;
}
table{width:100%;border-collapse:collapse;min-width:680px;}
thead th{background:#eafaf3;color:#0a3327;font-size:14.5px;text-align:left;padding:15px 16px;border-bottom:1px solid #d8f0e6;white-space:nowrap;}
tbody td{padding:14px 16px;font-size:14.5px;color:var(--ink-soft);border-bottom:1px solid #edf8f3;}
tbody tr:last-child td{border-bottom:none;}
tbody td:first-child{color:#0c352a;font-weight:600;}
td.highlight{color:var(--mint-700);font-weight:700;}
tbody tr:hover{background:#f7fdfa;}

/* 评分卡 */
.rating-card{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  background:linear-gradient(135deg,#0e8a64,#1fbd90);
  border-radius:20px;padding:26px 30px;margin-bottom:24px;color:#fff;
  box-shadow:0 18px 36px rgba(15,143,104,.22);
}
.rating-card h3{color:#fff;font-size:19px;margin-bottom:6px;}
.rating-card p{color:#e3fbf1;font-size:14px;}
.rating-score{display:flex;align-items:baseline;gap:10px;flex-shrink:0;}
.rating-score strong{font-size:38px;font-weight:800;color:#fff;line-height:1;}
.rating-score span{font-size:15px;color:#d6f6e8;}
.stars{font-size:18px;letter-spacing:3px;color:#ffe89b;}

/* 评论 */
.review-card{position:relative;padding-top:26px;}
.review-card::before{
  content:"“";position:absolute;top:2px;left:20px;font-size:44px;line-height:1;color:#bfe9d9;font-family:Georgia,serif;
}
.review-stars{font-size:14px;letter-spacing:2px;color:#f0a92b;}
.review-text{font-size:14.5px;color:#2c5048;line-height:1.75;}
.review-author{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:14px;border-top:1px dashed #dcf1e8;}
.avatar{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#dff7ec,#b9efdb);color:#0f7d5c;font-size:14px;font-weight:700;flex-shrink:0;
}
.review-author strong{display:block;font-size:14px;color:#0c352a;}
.review-author span{display:block;font-size:12.5px;color:#6b8d83;}

/* 表单 */
.contact-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:start;}
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow);}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field label{font-size:13.5px;font-weight:600;color:#1d4038;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid #cfe9df;border-radius:12px;font-size:14.5px;
  font-family:inherit;color:var(--ink);background:#fbfffd;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:#26cb9b;box-shadow:0 0 0 3px rgba(38,203,155,.18);
}
.field textarea{min-height:112px;resize:vertical;}
.full{grid-column:1/-1;}
.form-tip{font-size:13px;color:#6b8d83;margin-top:14px;}
.form-submit{width:100%;margin-top:18px;}

.contact-side{display:flex;flex-direction:column;gap:16px;}
.qr-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;text-align:center;box-shadow:var(--shadow);}
.qr-card h3{font-size:15.5px;margin-bottom:12px;}
.qr-box{display:flex;align-items:center;justify-content:center;padding:8px;}
.qr-box img{width:150px;max-width:100%;height:auto;display:block;border-radius:12px;border:1px solid #e2f4ec;}
.qr-card p{font-size:13px;color:#6b8d83;margin-top:10px;}
.info-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow);}
.info-card h3{font-size:15.5px;margin-bottom:12px;}
.info-list li{display:flex;gap:9px;font-size:14px;color:var(--ink-soft);padding:7px 0;border-bottom:1px dashed #e4f5ee;}
.info-list li:last-child{border-bottom:none;}
.info-list b{color:#0c352a;font-weight:600;flex-shrink:0;}

/* 帮助与FAQ */
.help-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-bottom:34px;}
.help-item{
  display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:22px;box-shadow:0 6px 18px rgba(18,84,64,.05);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.help-item:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(18,84,64,.12);border-color:#a9e6d1;}
.help-item h3{font-size:15.5px;}
.help-item p{font-size:14px;color:var(--ink-soft);}

.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .24s ease,box-shadow .24s ease;}
.faq-item:hover{border-color:#a9e6d1;box-shadow:0 10px 24px rgba(18,84,64,.08);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;background:transparent;border:none;cursor:pointer;font-family:inherit;
  font-size:15.5px;font-weight:600;color:#0c352a;text-align:left;line-height:1.55;
}
.faq-q:hover{color:var(--mint-700);}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--mint-100);color:var(--mint-700);font-size:17px;line-height:1;
  transition:transform .28s ease,background-color .28s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:#c8f2e1;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease;}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{padding:0 20px 18px;font-size:14.5px;color:var(--ink-soft);}

/* 百科与资讯 */
.wiki-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.wiki-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.wiki-item:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(18,84,64,.11);border-color:#a9e6d1;}
.wiki-item h3{font-size:15.5px;color:var(--mint-800);margin-bottom:8px;}
.wiki-item p{font-size:14px;color:var(--ink-soft);}
.news-box{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;
  box-shadow:var(--shadow);font-size:14.5px;color:var(--ink-soft);
}
.news-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.news-links a{
  display:inline-flex;align-items:center;padding:9px 16px;border-radius:999px;
  background:#fff;border:1px solid #bfe9d9;color:var(--mint-700);font-size:13.5px;font-weight:600;
  transition:background-color .2s ease,transform .2s ease,color .2s ease;
}
.news-links a:hover{background:#eafaf3;transform:translateY(-2px);color:var(--mint-800);}

/* 加盟代理 */
.join-card{
  display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;
  background:linear-gradient(150deg,#f0fdf7,#ffffff);
  border:1px solid #cdeee0;border-radius:22px;padding:32px;box-shadow:0 16px 36px rgba(18,84,64,.08);
}
.join-card h2{font-size:clamp(21px,2.6vw,27px);margin-bottom:12px;}
.join-card p{font-size:15px;color:var(--ink-soft);}
.join-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#2c5048;padding:8px 0;}
.join-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}

/* 页脚 */
.site-footer{
  margin-top:56px;
  background:linear-gradient(160deg,#0b3b2e,#0f5140);
  color:#cfeade;
  padding:48px 0 24px;
}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr .8fr;gap:32px;align-items:start;}
.footer-brand .ai-page-logo{max-height:42px;margin-bottom:14px;background:#fff;padding:6px 10px;border-radius:10px;}
.footer-brand p{font-size:14px;color:#c2e5d7;margin-bottom:6px;}
.footer-nav h3,.footer-qr h3{font-size:15px;color:#ffffff;margin-bottom:14px;}
.footer-nav ul{display:flex;flex-direction:column;gap:9px;}
.footer-nav a{font-size:14px;color:#bfe8d8;transition:color .2s ease;}
.footer-nav a:hover{color:#7ff0c8;}
.footer-qr img{width:118px;max-width:100%;height:auto;display:block;border-radius:10px;border:1px solid rgba(255,255,255,.25);background:#fff;padding:4px;}
.footer-qr p{font-size:12.5px;color:#bfe8d8;margin-top:8px;}
.friend-links{border-top:1px solid rgba(255,255,255,.14);margin-top:32px;padding-top:22px;}
.friend-links h3{font-size:14px;color:#ffffff;margin-bottom:12px;}
.friend-links-list{display:flex;flex-wrap:wrap;gap:10px 18px;}
.friend-links-list a{font-size:13.5px;color:#bfe8d8;transition:color .2s ease;}
.friend-links-list a:hover{color:#7ff0c8;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);margin-top:22px;padding-top:18px;
  font-size:13px;color:#9ed4c0;text-align:center;
}

/* 浮动 */
.float-service{
  position:fixed;right:20px;bottom:90px;z-index:70;width:54px;height:54px;border-radius:50%;
  background:linear-gradient(135deg,#26cb9b,#0e8a64);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;
  box-shadow:0 12px 26px rgba(15,143,104,.34);transition:transform .22s ease,box-shadow .22s ease;
}
.float-service:hover{transform:translateY(-3px);color:#fff;box-shadow:0 16px 32px rgba(15,143,104,.42);}
.to-top{
  position:fixed;right:20px;bottom:22px;z-index:70;width:54px;height:54px;border-radius:50%;
  border:1px solid #b7e9d7;background:#fff;color:var(--mint-700);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 22px rgba(18,84,64,.14);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background-color .2s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--mint-100);}
.to-top svg{width:20px;height:20px;}

/* 滚动渐入 */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .65s ease,transform .65s ease;}
.reveal.in{opacity:1;transform:none;}

/* 响应式 */
@media (max-width:1080px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;display:none;
    background:#ffffff;border-bottom:1px solid var(--line);
    box-shadow:0 16px 34px rgba(18,84,64,.12);
    padding:10px 20px 18px;
  }
  .main-nav.open{display:block;}
  .nav-links{flex-direction:column;align-items:stretch;gap:0;}
  .nav-links a{padding:13px 6px;border-bottom:1px solid #eef8f3;border-radius:0;font-size:15px;}
  .nav-links li:last-child a{border-bottom:none;}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero{padding:48px 0 36px;}
  .contact-layout{grid-template-columns:1fr;}
  .join-card{grid-template-columns:1fr;padding:26px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:26px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .wiki-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .net-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .help-grid{grid-template-columns:1fr;}
}
@media (max-width:860px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:640px){
  .section{padding:48px 0;}
  .grid-2,.grid-3,.grid-4,.flow,.steps,.net-grid,.wiki-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding:20px 14px;}
  .stat strong{font-size:24px;}
  .form-grid{grid-template-columns:1fr;}
  .hero-actions .btn{flex:1 1 auto;}
  .rating-card{padding:22px;}
  .rating-score strong{font-size:32px;}
  .footer-top{grid-template-columns:1fr;}
  .header-actions .btn-sm{display:none;}
  .form-card{padding:22px;}
  .join-card{padding:22px;}
  .float-service{width:48px;height:48px;font-size:12px;bottom:82px;}
  .to-top{width:48px;height:48px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}