:root{
  --green:#16c05a;
  --green-deep:#0a9a45;
  --green-soft:#e6faf0;
  --ink:#12241b;
  --ink-2:#2c4438;
  --muted:#5e7268;
  --line:#dceee3;
  --bg:#f4fbf7;
  --card:#ffffff;
  --radius:16px;
  --shadow:0 10px 30px rgba(16,80,45,.08);
  --shadow-hover:0 18px 40px rgba(16,80,45,.16);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1200px 480px at 8% -8%, #d6f7e4 0%, rgba(214,247,228,0) 62%),
    radial-gradient(900px 420px at 100% 4%, #e9fbec 0%, rgba(233,251,236,0) 60%),
    var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
section{scroll-margin-top:86px}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:66px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .ai-page-logo{height:38px;width:auto}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.5px;color:var(--ink)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.nav-links a{
  padding:8px 12px;font-size:14px;font-weight:600;color:var(--ink-2);
  border-radius:8px;transition:background .2s,color .2s;
}
.nav-links a:hover{background:var(--green-soft);color:var(--green-deep)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 20px;border-radius:999px;font-size:14px;font-weight:700;
  color:#fff;background:linear-gradient(135deg,var(--green),var(--green-deep));
  box-shadow:0 8px 20px rgba(22,192,90,.28);
  transition:transform .2s,box-shadow .2s;white-space:nowrap;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(22,192,90,.4)}
.menu-toggle{
  display:none;background:#fff;border:1px solid var(--line);border-radius:10px;
  width:42px;height:42px;cursor:pointer;align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-menu{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-menu.open{display:block}
.mobile-menu a{
  display:block;padding:12px 20px;font-size:15px;font-weight:600;
  color:var(--ink-2);border-bottom:1px solid #f0f7f3
}
.mobile-menu a:last-child{border-bottom:none}

/* ===== Hero ===== */
.hero{padding:64px 0 56px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--green-soft);color:var(--green-deep);
  font-size:13px;font-weight:700;padding:6px 14px;border-radius:999px;
  border:1px solid #c6f0d8;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--green);display:inline-block;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.8)}}
h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.18;font-weight:900;
  letter-spacing:-.5px;margin:18px 0 18px;color:var(--ink);
}
h1 em{
  font-style:normal;color:var(--green-deep);
  background:linear-gradient(180deg,transparent 66%,#bff3d5 66%);
  padding:0 2px;
}
.hero-lead{font-size:16px;color:var(--muted);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 30px;border-radius:12px;font-size:16px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--green),var(--green-deep));
  box-shadow:0 12px 26px rgba(22,192,90,.32);
  transition:transform .2s,box-shadow .2s;
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 34px rgba(22,192,90,.42)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:12px;font-size:15px;font-weight:700;
  color:var(--green-deep);background:#fff;border:1.5px solid #bdeed1;
  transition:background .2s,transform .2s;
}
.btn-ghost:hover{background:var(--green-soft);transform:translateY(-2px)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags span{
  font-size:13px;font-weight:600;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:6px 14px;transition:border-color .2s,color .2s;
}
.hero-tags span:hover{border-color:var(--green);color:var(--green-deep)}

/* hero visual - pure CSS */
.hero-visual{position:relative;min-height:360px;display:flex;align-items:center;justify-content:center}
.orb{
  width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle at 32% 30%,#7ff0ae,#16c05a 58%,#0a9a45);
  box-shadow:0 30px 70px rgba(16,150,70,.35);
  animation:float 7s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
.orbit{
  position:absolute;border:1.5px dashed rgba(10,154,69,.35);border-radius:50%;
  width:340px;height:340px;animation:spin 26s linear infinite;
}
.orbit.two{width:420px;height:420px;border-style:solid;border-color:rgba(10,154,69,.18);animation-duration:40s;animation-direction:reverse}
@keyframes spin{to{transform:rotate(360deg)}}
.orbit .dot{
  position:absolute;top:-6px;left:50%;width:12px;height:12px;
  border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(22,192,90,.18);
}
.stat-chip{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:10px 16px;box-shadow:var(--shadow);font-size:13px;font-weight:700;color:var(--ink);
  display:flex;flex-direction:column;gap:2px;
}
.stat-chip b{font-size:19px;color:var(--green-deep);font-weight:900}
.stat-chip small{font-size:11px;font-weight:500;color:var(--muted)}
.chip-a{top:14px;left:-6px}
.chip-b{bottom:56px;right:-8px}
.chip-c{bottom:0;left:20px}

/* ===== Section shell ===== */
.section{padding:56px 0}
.section-head{max-width:720px;margin-bottom:34px}
.kicker{
  font-size:13px;font-weight:800;letter-spacing:2px;color:var(--green-deep);
  text-transform:uppercase;display:inline-block;margin-bottom:10px;
}
h2{font-size:clamp(23px,3vw,34px);font-weight:900;line-height:1.28;color:var(--ink);letter-spacing:-.3px}
.section-head p{margin-top:12px;color:var(--muted);font-size:15px}

/* ===== Stats ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;
}
.stat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.stat-card b{display:block;font-size:30px;font-weight:900;color:var(--green-deep);line-height:1.1}
.stat-card span{display:block;margin-top:8px;font-size:14px;font-weight:700;color:var(--ink-2)}
.stat-card p{margin-top:6px;font-size:13px;color:var(--muted)}

/* ===== Services ===== */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.svc-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);position:relative;overflow:hidden;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.svc-card::before{
  content:"";position:absolute;inset:0 auto auto 0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--green),#8bf0b6);transform:scaleX(0);
  transform-origin:left;transition:transform .3s;
}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:#bfeacc}
.svc-card:hover::before{transform:scaleX(1)}
.svc-icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#e2faee,#c9f5da);color:var(--green-deep);
  font-weight:900;font-size:18px;margin-bottom:16px;
}
.svc-card h3{font-size:17px;font-weight:800;margin-bottom:8px;color:var(--ink)}
.svc-card p{font-size:14px;color:var(--muted)}

/* ===== Feature band / 一站式 ===== */
.band{
  background:linear-gradient(135deg,#0a9a45,#16c05a 62%,#45d585);
  border-radius:22px;padding:44px 40px;color:#fff;position:relative;overflow:hidden;
  box-shadow:0 22px 50px rgba(10,150,70,.28);
}
.band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:300px;height:300px;
  border-radius:50%;background:rgba(255,255,255,.14);
}
.band::before{
  content:"";position:absolute;left:-60px;bottom:-120px;width:260px;height:260px;
  border-radius:50%;background:rgba(255,255,255,.1);
}
.band h2{color:#fff;position:relative;z-index:1}
.band>p{color:rgba(255,255,255,.92);margin-top:12px;max-width:640px;position:relative;z-index:1}
.band-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px;position:relative;z-index:1;
}
.band-item{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  border-radius:14px;padding:18px 18px;transition:background .25s,transform .25s;
}
.band-item:hover{background:rgba(255,255,255,.24);transform:translateY(-4px)}
.band-item b{display:block;font-size:15px;font-weight:800;color:#fff;margin-bottom:6px}
.band-item span{font-size:13px;color:rgba(255,255,255,.9)}

/* ===== Process ===== */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:step}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 20px;box-shadow:var(--shadow);position:relative;transition:transform .25s,box-shadow .25s;
}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-size:13px;font-weight:900;color:var(--green-deep);
  background:var(--green-soft);border-radius:8px;padding:3px 9px;display:inline-block;margin-bottom:12px;
}
.step h3{font-size:15px;font-weight:800;margin-bottom:6px}
.step p{font-size:13px;color:var(--muted)}

/* ===== Case / 案例 ===== */
.case-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
.case-main,.case-side{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;
}
.case-main:hover,.case-side:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.case-img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#eef8f2}
.case-body{padding:22px 24px}
.case-body h3{font-size:16px;font-weight:800;margin-bottom:8px}
.case-body p{font-size:14px;color:var(--muted)}
.case-body .tag{
  display:inline-block;margin-top:14px;font-size:12px;font-weight:700;
  color:var(--green-deep);background:var(--green-soft);border-radius:999px;padding:4px 12px;
}
.side-list{display:grid;gap:16px}
.side-item{
  display:flex;gap:14px;align-items:flex-start;background:var(--card);
  border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow);
  transition:transform .2s,border-color .2s;
}
.side-item:hover{transform:translateX(4px);border-color:#bfeacc}
.side-item .thumb{width:74px;height:74px;border-radius:10px;object-fit:cover;flex-shrink:0;background:#eef8f2}
.side-item h4{font-size:14px;font-weight:800;margin-bottom:4px}
.side-item p{font-size:12.5px;color:var(--muted)}

/* ===== Compare / 对比 ===== */
.compare-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow);overflow:hidden;
}
.compare-top{
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;
  background:linear-gradient(135deg,#eafaf1,#f6fdf9);border-bottom:1px solid var(--line);
}
.compare-top>div{padding:18px 20px;font-size:14px;font-weight:800;color:var(--ink-2)}
.compare-top>div:first-child{color:var(--muted);font-weight:700}
.compare-top>div:nth-child(2){color:var(--green-deep)}
.compare-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;border-bottom:1px solid #eef7f2}
.compare-row:last-child{border-bottom:none}
.compare-row>div{padding:15px 20px;font-size:14px;color:var(--ink-2)}
.compare-row>div:first-child{color:var(--muted);font-weight:600}
.compare-row>div:nth-child(2){color:var(--green-deep);font-weight:700;background:rgba(230,250,240,.5)}
.compare-row>div:nth-child(3){color:#8b978f}
.score-panel{
  display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;align-items:center;
  margin-top:22px;background:var(--card);border:1px solid var(--line);
  border-radius:20px;padding:28px 30px;box-shadow:var(--shadow);
}
.score-big{text-align:center;border-right:1px solid var(--line);padding-right:20px}
.score-big b{font-size:56px;font-weight:900;color:var(--green-deep);line-height:1;display:block}
.score-big span{display:block;margin-top:8px;font-size:14px;color:var(--muted)}
.stars{color:#f5b50a;font-size:20px;letter-spacing:3px;margin-bottom:8px;display:block}
.score-text strong{font-size:17px;color:var(--ink);display:block;margin-bottom:8px}
.score-text p{font-size:14px;color:var(--muted)}

/* ===== Reviews ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;
  display:flex;flex-direction:column;gap:12px;
}
.review:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.review p{font-size:14px;color:var(--ink-2)}
.review-foot{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:12px;border-top:1px dashed var(--line)}
.avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,#c9f5da,#16c05a);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:14px;
}
.review-foot b{display:block;font-size:13.5px;color:var(--ink)}
.review-foot span{font-size:12px;color:var(--muted)}

/* ===== Price / Token ===== */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.price-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:#bfeacc}
.price-card.featured{border-color:var(--green);border-width:2px;position:relative}
.price-card.featured::after{
  content:"推荐";position:absolute;top:-12px;right:20px;background:var(--green);color:#fff;
  font-size:11px;font-weight:800;padding:3px 12px;border-radius:999px;letter-spacing:1px;
}
.price-card h3{font-size:16px;font-weight:800;margin-bottom:10px}
.price-num{font-size:32px;font-weight:900;color:var(--green-deep);line-height:1.1}
.price-num small{font-size:13px;font-weight:600;color:var(--muted);margin-left:4px}
.price-card ul{list-style:none;margin:18px 0 22px;display:flex;flex-direction:column;gap:9px}
.price-card li{font-size:13.5px;color:var(--ink-2);padding-left:20px;position:relative}
.price-card li::before{
  content:"";position:absolute;left:0;top:8px;width:9px;height:9px;border-radius:50%;
  background:var(--green-soft);border:2px solid var(--green);
}
.price-card .btn-ghost,.price-card .btn-primary{margin-top:auto;justify-content:center;width:100%}

/* ===== Articles ===== */
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.art-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;
  display:flex;flex-direction:column;gap:10px;
}
.art-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.art-card .cat{font-size:12px;font-weight:800;color:var(--green-deep);letter-spacing:1px}
.art-card h3{font-size:15.5px;font-weight:800;line-height:1.5}
.art-card p{font-size:13.5px;color:var(--muted)}
.art-card a{font-size:13px;font-weight:700;color:var(--green-deep);margin-top:auto}
.art-card a:hover{text-decoration:underline}

/* ===== Form / contact ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:24px;align-items:start}
.contact-info{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow);
}
.contact-info h3{font-size:18px;font-weight:800;margin-bottom:8px}
.contact-info>p{font-size:14px;color:var(--muted);margin-bottom:20px}
.info-list{display:flex;flex-direction:column;gap:14px}
.info-item{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--ink-2)}
.info-item b{font-weight:800;color:var(--ink);min-width:76px;display:inline-block}
.info-item a{color:var(--green-deep);font-weight:700}
.info-item a:hover{text-decoration:underline}
.qr-box{
  margin-top:22px;padding-top:20px;border-top:1px dashed var(--line);
  display:flex;gap:16px;align-items:center;
}
.qr-box img{width:110px;height:110px;object-fit:cover;border-radius:12px;border:1px solid var(--line)}
.qr-box div p{font-size:13px;color:var(--muted)}
.qr-box div b{font-size:14px;color:var(--ink);display:block;margin-bottom:4px}

.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow);
}
.form-card h3{font-size:18px;font-weight:800;margin-bottom:6px}
.form-card>p{font-size:13.5px;color:var(--muted);margin-bottom:20px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:700;color:var(--ink-2)}
.field input,.field select,.field textarea{
  width:100%;padding:11px 13px;font-size:14px;font-family:inherit;color:var(--ink);
  background:#fbfefc;border:1.5px solid var(--line);border-radius:10px;
  transition:border-color .2s,box-shadow .2s;outline:none;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--green);box-shadow:0 0 0 3px rgba(22,192,90,.15);background:#fff;
}
.field textarea{resize:vertical;min-height:104px}
.form-card .btn-primary{width:100%;justify-content:center;margin-top:18px;border:none;cursor:pointer;font-family:inherit}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  overflow:hidden;box-shadow:0 4px 14px rgba(16,80,45,.05);transition:border-color .2s,box-shadow .2s;
}
.faq-item:hover{border-color:#c3ecd2}
.faq-item.open{border-color:var(--green);box-shadow:0 10px 26px rgba(16,80,45,.1)}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:17px 20px;font-size:15px;font-weight:700;color:var(--ink);font-family:inherit;
  display:flex;justify-content:space-between;align-items:center;gap:14px;
}
.faq-q i{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--green-soft);
  color:var(--green-deep);display:flex;align-items:center;justify-content:center;
  font-style:normal;font-weight:900;font-size:15px;transition:transform .25s,background .25s;
}
.faq-item.open .faq-q i{transform:rotate(45deg);background:var(--green);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 20px 18px;font-size:14px;color:var(--muted)}

/* ===== Tags ===== */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud span{
  font-size:13px;font-weight:600;color:var(--ink-2);background:#fff;
  border:1px solid var(--line);border-radius:999px;padding:7px 15px;
  transition:all .2s;cursor:default;
}
.tag-cloud span:hover{background:var(--green);color:#fff;border-color:var(--green);transform:translateY(-2px)}

/* ===== Timeline ===== */
.timeline{position:relative;padding-left:26px;display:grid;gap:20px}
.timeline::before{
  content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--green),#c9f5da);
}
.tl-item{position:relative}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:6px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--green);
}
.tl-item b{font-size:15px;font-weight:800;color:var(--ink);display:block;margin-bottom:4px}
.tl-item p{font-size:13.5px;color:var(--muted)}

/* ===== Network ===== */
.net-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.net-item{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;font-size:13.5px;font-weight:700;color:var(--ink-2);
  box-shadow:0 4px 12px rgba(16,80,45,.05);transition:transform .2s,color .2s;
}
.net-item span{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-top:4px}
.net-item:hover{transform:translateY(-3px);color:var(--green-deep)}

/* ===== Friends ===== */
.friend-links{display:flex;flex-wrap:wrap;gap:10px 22px}
.friend-links a{font-size:13.5px;color:var(--ink-2);transition:color .2s}
.friend-links a:hover{color:var(--green-deep);text-decoration:underline}

/* ===== Footer ===== */
.site-footer{
  background:#0d2b1d;color:#c6ded2;margin-top:56px;padding:44px 0 24px;
}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand .ai-page-logo{height:38px;margin-bottom:14px;filter:brightness(0) invert(1)}
.footer-brand p{font-size:13.5px;color:#a8c6b7;max-width:340px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-col a,.footer-col p{display:block;font-size:13.5px;color:#a8c6b7;margin-bottom:9px;transition:color .2s}
.footer-col a:hover{color:#7ff0ae}
.footer-bottom{
  padding-top:20px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;align-items:center;font-size:12.5px;color:#8fb2a1;
}
.footer-bottom a{color:#8fb2a1}
.footer-bottom a:hover{color:#7ff0ae}

/* ===== Float ===== */
.float-btn{
  position:fixed;right:22px;bottom:26px;z-index:80;display:flex;flex-direction:column;gap:12px;
}
.fb{
  width:48px;height:48px;border-radius:50%;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--green),var(--green-deep));
  box-shadow:0 10px 24px rgba(22,192,90,.4);transition:transform .2s,opacity .2s;
  writing-mode:vertical-rl;letter-spacing:2px;padding:6px 0;
}
.fb:hover{transform:translateY(-3px) scale(1.05)}
.fb.top{opacity:0;pointer-events:none;writing-mode:horizontal-tb;font-size:18px}
.fb.top.show{opacity:1;pointer-events:auto}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ===== Responsive ===== */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-visual{min-height:300px;order:-1;transform:scale(.86)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .band-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr;max-width:480px}
  .art-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .score-panel{grid-template-columns:1fr;gap:16px}
  .score-big{border-right:none;border-bottom:1px solid var(--line);padding:0 0 16px}
  .net-list{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .menu-toggle{display:flex}
}
@media (max-width:640px){
  .hero{padding:44px 0 40px}
  .section{padding:44px 0}
  .stats-grid{grid-template-columns:1fr}
  .svc-grid{grid-template-columns:1fr}
  .band{padding:32px 22px}
  .band-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .art-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .net-list{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .compare-row,.compare-top{grid-template-columns:1.2fr 1fr 1fr}
  .compare-row>div,.compare-top>div{padding:12px 12px;font-size:13px}
  .hero-actions .btn-primary,.hero-actions .btn-ghost{width:100%;justify-content:center}
  .float-btn{right:14px;bottom:18px}
}