:root{
  --brand:#0d9488;
  --brand-2:#0ea5a3;
  --brand-deep:#0f766e;
  --brand-soft:#e8f7f4;
  --accent:#f59e0b;
  --ink:#0f172a;
  --ink-2:#334155;
  --ink-3:#64748b;
  --line:#dcece9;
  --card:#ffffff;
  --radius:18px;
  --shadow:0 12px 32px rgba(13,148,136,.12);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:#f6fbfa;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;}
a{color:var(--brand-deep);text-decoration:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;color:var(--ink);font-weight:800;letter-spacing:-.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px;}
section[id]{scroll-margin-top:84px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(12px);
  -webkit-backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid #e3efec;
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-logo{display:flex;align-items:center;}
.brand-logo img{max-height:38px;width:auto;display:block;}
.brand-name{font-size:17px;font-weight:800;color:var(--brand-deep);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0;}
.nav-links a{display:block;padding:9px 11px;font-size:14.5px;color:var(--ink-2);border-radius:9px;transition:color .2s ease,background .2s ease;}
.nav-links a:hover{color:var(--brand-deep);background:var(--brand-soft);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-2);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#12b3a8 0%,#0d9488 55%,#0f766e 100%);
  color:#fff;box-shadow:0 10px 22px rgba(13,148,136,.26);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(13,148,136,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:#bfe6e0;box-shadow:0 4px 14px rgba(13,148,136,.08);}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:0 12px 22px rgba(13,148,136,.16);}
.btn-sm{padding:9px 18px;font-size:14px;}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:66px 0 74px;
  background:
    radial-gradient(900px 420px at 84% -6%, rgba(245,158,11,.16), transparent 62%),
    radial-gradient(820px 480px at 4% 8%, rgba(13,148,136,.18), transparent 62%),
    linear-gradient(180deg,#eefaf7 0%,#f8fdfc 100%);
}
.hero-mesh{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(13,148,136,.09) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(13,148,136,.09) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(circle at 28% 22%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 28% 22%,#000 0%,transparent 72%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:start;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--brand-deep);background:rgba(13,148,136,.1);
  border:1px solid rgba(13,148,136,.18);
  padding:6px 15px;border-radius:999px;margin-bottom:20px;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block;box-shadow:0 0 0 4px rgba(245,158,11,.18);}
.hero h1{font-size:clamp(30px,4.3vw,50px);line-height:1.16;letter-spacing:-1px;}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#0f766e 0%,#12b3a8 60%,#0891b2 100%);
  -webkit-background-clip:text;background-clip:text;color:#0f766e;
}
.hero-lead{margin-top:20px;font-size:16.5px;color:var(--ink-2);max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-points li{
  font-size:13.5px;color:var(--brand-deep);font-weight:600;
  background:#fff;border:1px solid #d5eeea;border-radius:999px;padding:7px 15px;
  box-shadow:0 3px 10px rgba(13,148,136,.07);
}
.hero-panel{
  background:#fff;border:1px solid #d9efeb;border-radius:22px;padding:26px;
  box-shadow:0 20px 46px rgba(13,148,136,.13);
  position:relative;
}
.hero-panel::before{
  content:"";position:absolute;top:-1px;left:26px;right:26px;height:3px;border-radius:0 0 6px 6px;
  background:linear-gradient(90deg,#12b3a8,#f59e0b);
}
.panel-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--brand-deep);text-transform:uppercase;}
.panel-head i{width:8px;height:8px;border-radius:50%;background:#12b3a8;display:block;animation:pulse 2.4s ease-in-out infinite;}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(18,179,168,.5);}50%{box-shadow:0 0 0 7px rgba(18,179,168,0);}}
.panel-list{margin-top:16px;display:grid;gap:2px;}
.panel-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px dashed #e6f2f0;}
.panel-list li:last-child{border-bottom:0;}
.panel-list span{font-size:15px;font-weight:700;color:var(--ink);}
.panel-list em{font-style:normal;font-size:13px;color:var(--brand-deep);background:var(--brand-soft);border-radius:8px;padding:4px 10px;font-weight:600;white-space:nowrap;}
.panel-chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px;}
.panel-chips span{font-size:12px;color:#475569;background:#f4faf9;border:1px solid #e2f1ee;border-radius:7px;padding:4px 9px;}

/* ---------- section base ---------- */
.section{padding:74px 0;}
.section-tint{background:linear-gradient(180deg,rgba(13,148,136,.055) 0%,rgba(246,251,250,0) 100%);}
.section-warm{background:linear-gradient(180deg,rgba(245,158,11,.07) 0%,rgba(246,251,250,0) 100%);}
.section-head{max-width:740px;margin:0 auto 42px;text-align:center;}
.kicker{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.14em;
  color:var(--brand-deep);background:rgba(13,148,136,.1);
  padding:6px 14px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(23px,3vw,34px);}
.section-head p{margin-top:14px;color:var(--ink-3);font-size:15.5px;}

/* ---------- generic cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;align-items:start;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:stretch;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  box-shadow:0 2px 10px rgba(15,23,42,.04);
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b7e5de;}
.card h3{font-size:17px;margin-bottom:8px;}
.card p{font-size:14.5px;color:var(--ink-3);}
.card-num{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:#fff;margin-bottom:14px;
  background:linear-gradient(135deg,#12b3a8,#0f766e);box-shadow:0 6px 14px rgba(13,148,136,.24);
}
.card-accent{background:linear-gradient(160deg,#0f766e 0%,#0d9488 60%,#12b3a8 100%);border-color:transparent;color:#fff;}
.card-accent h3{color:#fff;}
.card-accent p{color:rgba(255,255,255,.86);}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:start;}
.about-text h2{font-size:clamp(23px,2.8vw,32px);margin-bottom:16px;}
.about-text > p{color:var(--ink-2);font-size:15.5px;margin-bottom:14px;}
.about-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px;}
.about-list li{
  display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 15px;
}
.about-list li::before{
  content:"";width:8px;height:8px;border-radius:50%;flex-shrink:0;margin-top:8px;
  background:linear-gradient(135deg,#12b3a8,#0f766e);
}
.about-media{display:grid;gap:14px;}
.media{
  width:100%;border-radius:16px;overflow:hidden;background:#eef7f5;
  border:1px solid var(--line);aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;
}
.media img{width:100%;height:100%;object-fit:contain;display:block;}
.media-square{aspect-ratio:1/1;}

/* ---------- capability strip ---------- */
.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:-38px;position:relative;z-index:5;}
.strip-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 20px;
  box-shadow:0 14px 30px rgba(13,148,136,.10);transition:transform .26s ease,box-shadow .26s ease;
}
.strip-item:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(13,148,136,.16);}
.strip-item strong{display:block;font-size:16px;color:var(--ink);margin-bottom:6px;}
.strip-item span{font-size:13.5px;color:var(--ink-3);}

/* ---------- tags ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px;}
.tag-cloud span{
  font-size:13px;color:#31605c;background:#fff;border:1px solid #d8eeea;
  padding:7px 13px;border-radius:999px;transition:.22s ease;
}
.tag-cloud span:hover{background:var(--brand-soft);border-color:#9fded6;transform:translateY(-2px);}

/* ---------- timeline ---------- */
.timeline{position:relative;display:grid;gap:18px;}
.timeline::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,#a9e3db,#f6d8a2);border-radius:2px;
}
.timeline li{position:relative;padding-left:56px;}
.timeline .t-dot{
  position:absolute;left:8px;top:22px;width:24px;height:24px;border-radius:50%;
  background:#fff;border:2px solid #12b3a8;display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:800;color:var(--brand-deep);
}
.timeline .t-body{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px;transition:.26s ease;}
.timeline .t-body:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:#b7e5de;}
.timeline h3{font-size:16px;margin-bottom:6px;}
.timeline p{font-size:14px;color:var(--ink-3);}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 4px 16px rgba(15,23,42,.05);}
table{width:100%;border-collapse:collapse;min-width:720px;font-size:14.5px;}
thead th{
  background:#eefaf7;color:var(--ink);text-align:left;padding:15px 18px;
  font-weight:800;white-space:nowrap;font-size:14px;border-bottom:1px solid var(--line);
}
thead th.brand-col{background:linear-gradient(135deg,#0d9488,#12b3a8);color:#fff;}
tbody td{padding:14px 18px;border-top:1px solid #edf6f4;color:var(--ink-2);vertical-align:top;}
tbody tr:hover td{background:#fbfefd;}
tbody td.brand-col{background:#f2fbf9;color:var(--brand-deep);font-weight:600;}
td:first-child{font-weight:700;color:var(--ink);}

/* ---------- score ---------- */
.score-card{
  background:linear-gradient(160deg,#0f766e 0%,#0d9488 55%,#12b3a8 100%);
  border-radius:20px;padding:32px 28px;color:#fff;position:relative;overflow:hidden;
  box-shadow:0 22px 44px rgba(13,148,136,.28);
}
.score-card::after{
  content:"";position:absolute;width:200px;height:200px;border-radius:50%;
  right:-60px;bottom:-70px;background:rgba(255,255,255,.12);
}
.score-num{font-size:56px;font-weight:800;line-height:1;color:#fff;letter-spacing:-2px;}
.score-num span{font-size:20px;font-weight:600;opacity:.8;letter-spacing:0;}
.score-stars{margin-top:10px;font-size:20px;letter-spacing:4px;color:#ffd166;}
.score-card p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.9);}
.score-card .score-note{font-size:13.5px;color:rgba(255,255,255,.78);margin-top:14px;position:relative;z-index:2;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;}
.faq-item.open{border-color:#a9e3db;box-shadow:0 10px 26px rgba(13,148,136,.12);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;padding:18px 22px;cursor:pointer;text-align:left;
  font-size:15.5px;font-weight:700;color:var(--ink);font-family:inherit;line-height:1.5;
}
.faq-q:hover{color:var(--brand-deep);}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .28s ease,opacity .28s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-a p{padding:0 22px 20px;font-size:14.5px;color:var(--ink-3);}

/* ---------- reviews ---------- */
.review-card{display:flex;flex-direction:column;gap:14px;}
.review-head{display:flex;align-items:center;gap:12px;}
.avatar{
  width:46px;height:46px;border-radius:14px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;color:#fff;background:linear-gradient(135deg,#12b3a8,#0f766e);
}
.avatar.b2{background:linear-gradient(135deg,#f59e0b,#d97706);}
.avatar.b3{background:linear-gradient(135deg,#0891b2,#0e7490);}
.avatar.b4{background:linear-gradient(135deg,#6366f1,#4338ca);}
.avatar.b5{background:linear-gradient(135deg,#ec4899,#be185d);}
.avatar.b6{background:linear-gradient(135deg,#84cc16,#4d7c0f);}
.review-name{font-size:15px;font-weight:800;color:var(--ink);}
.review-role{font-size:13px;color:var(--ink-3);}
.review-text{font-size:14.5px;color:var(--ink-2);}
.review-stars{font-size:13px;color:#f59e0b;letter-spacing:2px;}

/* ---------- form ---------- */
.form-shell{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:24px;padding:36px;
  box-shadow:0 18px 42px rgba(13,148,136,.10);
}
.form-info h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;}
.form-info p{font-size:14.5px;color:var(--ink-3);}
.form-info .tag-cloud{margin-top:18px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field-full{grid-column:1 / -1;}
.field label{font-size:13.5px;font-weight:700;color:var(--ink-2);}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:14.5px;color:var(--ink);
  background:#fbfefd;border:1px solid #dcece9;border-radius:11px;padding:12px 14px;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field textarea{min-height:118px;resize:vertical;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#bfe6e0;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:#12b3a8;background:#fff;box-shadow:0 0 0 4px rgba(18,179,168,.14);
}
.form-note{grid-column:1 / -1;font-size:13px;color:var(--ink-3);}
.form-submit{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.form-submit .btn{flex:0 0 auto;}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start;}
.contact-list{display:grid;gap:12px;}
.contact-item{
  display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:16px 18px;transition:.26s ease;
}
.contact-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b7e5de;}
.contact-ico{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:#fff;background:linear-gradient(135deg,#12b3a8,#0f766e);
}
.contact-item strong{display:block;font-size:13px;color:var(--ink-3);font-weight:600;letter-spacing:.02em;}
.contact-item span{font-size:15px;color:var(--ink);font-weight:700;word-break:break-all;}
.qr-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;text-align:center;box-shadow:0 10px 26px rgba(13,148,136,.08);}
.qr-card .media{aspect-ratio:1/1;margin-bottom:14px;}
.qr-card h3{font-size:16px;margin-bottom:6px;}
.qr-card p{font-size:13.5px;color:var(--ink-3);}

/* ---------- knowledge ---------- */
.knowledge-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;}
.panel-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:0 4px 16px rgba(15,23,42,.04);}
.panel-box h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:9px;}
.panel-box h3::before{
  content:"";width:4px;height:16px;border-radius:3px;
  background:linear-gradient(180deg,#12b3a8,#0f766e);display:block;
}
.article-list{display:grid;gap:2px;}
.article-list a{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 6px;border-bottom:1px dashed #e8f3f1;font-size:14.5px;color:var(--ink-2);
  transition:color .2s ease,padding-left .2s ease;
}
.article-list a:last-child{border-bottom:0;}
.article-list a:hover{color:var(--brand-deep);padding-left:12px;}
.article-list a::after{content:"→";color:#9dbfbb;font-size:13px;flex-shrink:0;}
.wiki-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.wiki-item{background:#f7fdfb;border:1px solid #e4f3f0;border-radius:12px;padding:14px 16px;}
.wiki-item strong{display:block;font-size:14.5px;color:var(--brand-deep);margin-bottom:4px;}
.wiki-item span{font-size:13px;color:var(--ink-3);}

/* ---------- join ---------- */
.join-band{
  background:
    radial-gradient(600px 300px at 88% 0%, rgba(245,158,11,.22), transparent 60%),
    linear-gradient(135deg,#0f766e 0%,#0d9488 55%,#0891b2 100%);
  border-radius:24px;padding:42px 38px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  box-shadow:0 24px 50px rgba(13,148,136,.28);
}
.join-band h2{font-size:clamp(21px,2.6vw,28px);color:#fff;margin-bottom:10px;}
.join-band p{font-size:14.5px;color:rgba(255,255,255,.86);max-width:640px;}
.join-band .btn{background:#fff;color:var(--brand-deep);box-shadow:0 10px 24px rgba(0,0,0,.14);}
.join-band .btn:hover{background:#f2fffd;transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{background:#0f2b29;color:#cfe6e2;padding:46px 0 24px;margin-top:0;}
.footer-top{display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:start;}
.footer-brand-name{font-size:18px;font-weight:800;color:#fff;margin-bottom:10px;}
.footer-brand p{font-size:13.5px;color:#a8c7c3;line-height:1.8;max-width:520px;}
.footer-meta{margin-top:16px;display:flex;flex-wrap:wrap;gap:10px;}
.footer-meta a{
  font-size:13.5px;color:#9fe0d8;border:1px solid rgba(159,224,216,.3);
  border-radius:999px;padding:6px 14px;transition:.22s ease;
}
.footer-meta a:hover{background:rgba(159,224,216,.14);color:#fff;}
.ai-page-home-link{color:#9fe0d8;}
.footer-links{margin-top:30px;padding-top:24px;border-top:1px solid rgba(159,224,216,.16);}
.footer-links h4{font-size:13.5px;color:#8fb8b4;font-weight:700;margin-bottom:14px;letter-spacing:.06em;}
.footer-link-row{display:flex;flex-wrap:wrap;gap:9px;}
.footer-link-row a{
  font-size:13px;color:#bcdedb;background:rgba(255,255,255,.06);
  border:1px solid rgba(159,224,216,.18);border-radius:8px;padding:6px 12px;transition:.22s ease;
}
.footer-link-row a:hover{background:rgba(159,224,216,.16);color:#fff;transform:translateY(-2px);}
.footer-bottom{
  margin-top:26px;padding-top:18px;border-top:1px solid rgba(159,224,216,.16);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#93b6b2;
}

/* ---------- floating ---------- */
.float-tools{position:fixed;right:18px;bottom:22px;z-index:70;display:flex;flex-direction:column;gap:10px;}
.float-btn{
  width:48px;height:48px;border-radius:50%;border:1px solid #cfeae6;background:#fff;
  box-shadow:0 10px 24px rgba(13,148,136,.2);cursor:pointer;display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;color:var(--brand-deep);transition:.24s ease;padding:0;font-family:inherit;
}
.float-btn:hover{transform:translateY(-3px);background:var(--brand-soft);}
.float-btn.to-top{opacity:0;pointer-events:none;}
.float-btn.to-top.show{opacity:1;pointer-events:auto;}
.kefu-pop{
  position:fixed;right:18px;bottom:82px;z-index:75;width:210px;background:#fff;
  border:1px solid var(--line);border-radius:16px;padding:14px;text-align:center;
  box-shadow:0 20px 44px rgba(13,148,136,.22);
  opacity:0;transform:translateY(10px);pointer-events:none;transition:.26s ease;
}
.kefu-pop.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.kefu-pop .media{aspect-ratio:1/1;margin-bottom:8px;}
.kefu-pop p{font-size:12.5px;color:var(--ink-3);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;
    background:#fff;border-bottom:1px solid #e3efec;padding:8px 20px 16px;display:none;
    box-shadow:0 16px 28px rgba(13,148,136,.1);
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:12px 4px;font-size:15px;border-bottom:1px solid #f0f8f7;}
  .nav-links li:last-child a{border-bottom:0;}
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .about-grid,.contact-grid,.form-shell,.knowledge-grid,.footer-top{grid-template-columns:1fr;}
  .grid-3,.grid-4,.strip{grid-template-columns:repeat(2,1fr);}
  .strip{margin-top:26px;}
}
@media (max-width:720px){
  .section{padding:56px 0;}
  .hero{padding:46px 0 58px;}
  .grid-3,.grid-4,.grid-2,.strip,.about-list,.form-grid,.wiki-grid{grid-template-columns:1fr;}
  .form-shell{padding:24px;gap:24px;}
  .join-band{padding:30px 24px;flex-direction:column;align-items:flex-start;}
  .card{padding:22px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px;}
  .float-tools{right:14px;bottom:16px;}
  .kefu-pop{right:14px;bottom:74px;width:190px;}
  .hero-points li{font-size:12.5px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}