:root{
  --mint-900:#0d3b2e;
  --mint-800:#124a39;
  --mint-700:#17664e;
  --mint-600:#1f8a68;
  --mint-500:#2fae85;
  --mint-400:#5ec9a4;
  --mint-300:#9fe0c8;
  --mint-200:#cdf0e2;
  --mint-100:#e8f8f1;
  --cream:#f5fbf7;
  --ink:#122a22;
  --ink-soft:#41605a;
  --ink-mute:#71908a;
  --line:#d9ece3;
  --white:#ffffff;
  --amber:#d99a2b;
  --shadow-sm:0 2px 10px rgba(18,74,57,.06);
  --shadow-md:0 10px 30px rgba(18,74,57,.10);
  --shadow-lg:0 22px 55px rgba(18,74,57,.14);
  --radius:18px;
  --container:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1100px 520px at 88% -8%,rgba(94,201,164,.20),transparent 60%),
    radial-gradient(900px 480px at -6% 34%,rgba(205,240,226,.55),transparent 62%),
    linear-gradient(180deg,#f7fdfa 0%,#f2fbf7 40%,#eef9f3 100%);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}
.section{padding:74px 0}
.section-head{max-width:760px;margin:0 auto 42px;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;font-weight:600;
  color:var(--mint-700);background:var(--mint-100);
  border:1px solid var(--mint-200);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint-500)}
h2.section-title{font-size:clamp(24px,3.2vw,34px);line-height:1.32;letter-spacing:-.01em;color:var(--mint-900)}
.section-desc{margin-top:14px;color:var(--ink-soft);font-size:15.5px}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:12px;font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;
  will-change:transform;
}
.btn-primary{
  background:linear-gradient(135deg,var(--mint-600),var(--mint-500));
  color:#fff;box-shadow:0 10px 24px rgba(31,138,104,.30);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(31,138,104,.36)}
.btn-ghost{background:#fff;color:var(--mint-800);border-color:var(--mint-200);box-shadow:var(--shadow-sm)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--mint-400);box-shadow:var(--shadow-md)}
.btn-soft{background:var(--mint-100);color:var(--mint-800);border-color:var(--mint-200)}
.btn-soft:hover{background:var(--mint-200)}
.btn:active{transform:translateY(0) scale(.985)}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(14px);
  background:rgba(247,253,250,.86);
  border-bottom:1px solid rgba(217,236,227,.9);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:70px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .ai-page-logo{height:38px;width:auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16px;font-weight:800;color:var(--mint-900);letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--ink-mute);letter-spacing:.08em}
.nav-wrap{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.nav-links a{
  font-size:14px;color:var(--ink-soft);font-weight:500;
  padding:8px 11px;border-radius:9px;transition:background .2s,color .2s;
}
.nav-links a:hover{background:var(--mint-100);color:var(--mint-800)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-cta .btn{padding:10px 18px;font-size:14px;border-radius:10px}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--mint-200);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--mint-800);border-radius:2px;transition:transform .25s,opacity .25s}
.menu-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* hero */
.hero{position:relative;overflow:hidden;padding:70px 0 80px}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(620px 420px at 78% 12%,rgba(94,201,164,.30),transparent 68%),
    radial-gradient(560px 400px at 10% 80%,rgba(205,240,226,.55),transparent 70%);
  pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1.15fr .85fr;
  gap:48px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:#fff;
  border:1px solid var(--mint-200);color:var(--mint-700);
  font-size:13px;font-weight:600;padding:7px 15px;border-radius:999px;box-shadow:var(--shadow-sm);
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--mint-500);display:inline-block;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(47,174,133,.55)}50%{box-shadow:0 0 0 7px rgba(47,174,133,0)}}
h1.hero-title{
  margin-top:20px;font-size:clamp(30px,4.4vw,50px);line-height:1.2;
  letter-spacing:-.02em;color:var(--mint-900);font-weight:800;
}
h1.hero-title em{font-style:normal;color:var(--mint-600);position:relative;white-space:nowrap}
h1.hero-title em::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:.30em;
  background:linear-gradient(90deg,rgba(94,201,164,.42),rgba(205,240,226,.15));
  border-radius:6px;z-index:-1;
}
.hero-desc{margin-top:20px;font-size:16.5px;color:var(--ink-soft);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:28px;font-size:13.5px;color:var(--ink-mute)}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint-400)}

.hero-panel{
  position:relative;background:rgba(255,255,255,.78);
  border:1px solid rgba(217,236,227,.9);border-radius:24px;
  padding:26px;box-shadow:var(--shadow-lg);
  backdrop-filter:blur(10px);
}
.hero-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.hero-panel-head strong{font-size:15px;color:var(--mint-900)}
.hero-panel-head span{font-size:12px;color:var(--mint-700);background:var(--mint-100);padding:4px 10px;border-radius:999px}
.mini-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mini-metric{
  background:linear-gradient(160deg,#fff,var(--mint-100));
  border:1px solid var(--mint-200);border-radius:14px;padding:15px 16px;
  transition:transform .25s,box-shadow .25s;
}
.mini-metric:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.mini-metric .num{font-size:23px;font-weight:800;color:var(--mint-700);letter-spacing:-.01em}
.mini-metric .num small{font-size:13px;font-weight:600;margin-left:2px}
.mini-metric .label{margin-top:4px;font-size:12.5px;color:var(--ink-mute)}
.model-chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}
.model-chips span{
  font-size:12px;color:var(--mint-800);background:#fff;border:1px solid var(--mint-200);
  padding:5px 11px;border-radius:999px;transition:background .2s,transform .2s;
}
.model-chips span:hover{background:var(--mint-100);transform:translateY(-1px)}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* metrics band */
.metrics-band{
  background:linear-gradient(120deg,var(--mint-800),var(--mint-600));
  border-radius:22px;padding:34px 30px;color:#eafaf3;
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.metrics-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;
  background:radial-gradient(circle,rgba(255,255,255,.16),transparent 70%);border-radius:50%;
}
.metrics-band .m-item{position:relative;text-align:center}
.metrics-band .m-num{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.01em}
.metrics-band .m-label{font-size:13px;color:rgba(234,250,243,.82);margin-top:6px}

/* cards generic */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--mint-300)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;align-items:stretch}
.card-ico{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--mint-100),var(--mint-200));
  color:var(--mint-700);font-weight:800;font-size:16px;margin-bottom:16px;
}
.card h3{font-size:17.5px;color:var(--mint-900);margin-bottom:10px}
.card p{font-size:14.5px;color:var(--ink-soft)}
.card ul{margin-top:12px;display:grid;gap:8px}
.card ul li{font-size:13.8px;color:var(--ink-soft);padding-left:18px;position:relative}
.card ul li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--mint-400)}

/* about */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.about-copy p{color:var(--ink-soft);font-size:15.5px;margin-bottom:14px}
.about-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.about-list div{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 15px;
  font-size:13.8px;color:var(--mint-800);font-weight:600;
  box-shadow:var(--shadow-sm);display:flex;align-items:center;gap:9px;
}
.about-list div::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--mint-500);flex-shrink:0}
.about-visual{
  background:linear-gradient(160deg,#fff,var(--mint-100));
  border:1px solid var(--mint-200);border-radius:24px;padding:30px;
  box-shadow:var(--shadow-md);
}
.about-visual h3{color:var(--mint-900);font-size:18px;margin-bottom:16px}
.about-bars{display:grid;gap:16px}
.bar-row{font-size:13.5px;color:var(--ink-soft)}
.bar-row .bar-head{display:flex;justify-content:space-between;margin-bottom:7px}
.bar-track{height:9px;border-radius:99px;background:var(--mint-200);overflow:hidden}
.bar-fill{height:100%;border-radius:99px;background:linear-gradient(90deg,var(--mint-600),var(--mint-400));width:0;transition:width 1.2s cubic-bezier(.2,.7,.3,1)}

/* services */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.service-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 20px;
  box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s;
  display:flex;flex-direction:column;
}
.service-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--mint-300)}
.service-item .s-tag{font-size:11.5px;color:var(--mint-700);background:var(--mint-100);border-radius:999px;padding:3px 9px;align-self:flex-start;margin-bottom:12px;font-weight:600}
.service-item h3{font-size:16px;color:var(--mint-900);margin-bottom:9px}
.service-item p{font-size:13.6px;color:var(--ink-soft)}

/* flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.flow-step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:26px 22px 22px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.flow-step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:-14px;left:22px;background:linear-gradient(135deg,var(--mint-600),var(--mint-400));
  color:#fff;font-weight:800;font-size:13px;letter-spacing:.05em;
  padding:5px 12px;border-radius:9px;box-shadow:0 6px 16px rgba(31,138,104,.28);
}
.flow-step h3{font-size:16px;color:var(--mint-900);margin:8px 0 8px}
.flow-step p{font-size:13.6px;color:var(--ink-soft)}

/* timeline */
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--mint-400),var(--mint-200))}
.tl-item{position:relative;padding:0 0 26px 20px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-24px;top:6px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--mint-500)}
.tl-item h3{font-size:15.5px;color:var(--mint-900)}
.tl-item p{font-size:13.8px;color:var(--ink-soft);margin-top:4px}

/* case */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .26s,box-shadow .26s;display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.case-media{background:var(--mint-100);aspect-ratio:16/10;overflow:hidden}
.case-media img{width:100%;height:100%;object-fit:cover}
.case-body{padding:18px 20px 22px}
.case-body h3{font-size:16px;color:var(--mint-900);margin-bottom:8px}
.case-body p{font-size:13.6px;color:var(--ink-soft)}

/* people imgs */
.gallery-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:26px}
.gallery-2 .g-item{border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:#fff}
.gallery-2 img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* table */
.table-scroll{overflow-x:auto;border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:#fff}
table.compare{width:100%;border-collapse:collapse;min-width:720px}
table.compare th,table.compare td{padding:15px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
table.compare thead th{background:var(--mint-100);color:var(--mint-900);font-weight:700;font-size:14px}
table.compare tbody tr:last-child td{border-bottom:none}
table.compare tbody tr:hover{background:#f8fdfa}
table.compare td:first-child{color:var(--mint-900);font-weight:600}
.badge-star{color:var(--amber);font-weight:700;letter-spacing:1px}
.score-cell{font-weight:800;color:var(--mint-700)}

/* rating */
.rating-card{
  display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center;
  background:linear-gradient(135deg,#fff,var(--mint-100));border:1px solid var(--mint-200);
  border-radius:20px;padding:28px;box-shadow:var(--shadow-md);margin-bottom:26px;
}
.rating-score{text-align:center;padding-right:26px;border-right:1px dashed var(--mint-300)}
.rating-score .big{font-size:52px;font-weight:800;line-height:1;color:var(--mint-700)}
.rating-score .max{font-size:13px;color:var(--ink-mute);margin-top:6px}
.rating-score .stars{margin-top:10px;color:var(--amber);font-size:17px;letter-spacing:2px}
.rating-info h3{font-size:19px;color:var(--mint-900);margin-bottom:10px}
.rating-info p{font-size:14.5px;color:var(--ink-soft)}
.rating-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.rating-tags span{font-size:12.5px;color:var(--mint-800);background:#fff;border:1px solid var(--mint-200);padding:5px 12px;border-radius:999px}

/* token price */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 24px;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.price-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--mint-300)}
.price-card.featured{border-color:var(--mint-400);box-shadow:var(--shadow-md);position:relative}
.price-card.featured::after{
  content:"综合推荐";position:absolute;top:-12px;right:20px;background:var(--mint-600);color:#fff;
  font-size:11.5px;padding:4px 12px;border-radius:999px;font-weight:600;
}
.price-card h3{font-size:17px;color:var(--mint-900);margin-bottom:6px}
.price-card .p-sub{font-size:13px;color:var(--ink-mute);margin-bottom:16px}
.price-card .p-val{font-size:26px;font-weight:800;color:var(--mint-700);letter-spacing:-.01em}
.price-card .p-val small{font-size:13px;font-weight:600;color:var(--ink-mute);margin-left:4px}
.price-card ul{margin-top:16px;display:grid;gap:9px;flex:1}
.price-card ul li{font-size:13.6px;color:var(--ink-soft);padding-left:18px;position:relative}
.price-card ul li::before{content:"✓";position:absolute;left:0;color:var(--mint-500);font-weight:700}
.price-card .btn{margin-top:20px}

/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;
  box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column;
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  background:linear-gradient(150deg,var(--mint-400),var(--mint-600));color:#fff;
}
.review-top .name{font-size:14.5px;font-weight:700;color:var(--mint-900)}
.review-top .role{font-size:12.5px;color:var(--ink-mute)}
.review-stars{color:var(--amber);font-size:13px;letter-spacing:1px;margin-bottom:10px}
.review-card p{font-size:13.9px;color:var(--ink-soft);flex:1}

/* faq */
.faq-wrap{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm);transition:border-color .2s}
.faq-item.open{border-color:var(--mint-400);box-shadow:var(--shadow-md)}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:18px 22px;font-size:15px;font-weight:600;color:var(--mint-900);
  display:flex;align-items:center;justify-content:space-between;gap:16px;font-family:inherit;
}
.faq-q .ico{width:22px;height:22px;flex-shrink:0;position:relative;border-radius:50%;background:var(--mint-100)}
.faq-q .ico::before,.faq-q .ico::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--mint-700);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .25s,opacity .25s;
}
.faq-q .ico::before{width:10px;height:2px}
.faq-q .ico::after{width:2px;height:10px}
.faq-item.open .faq-q .ico::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 20px;font-size:14.2px;color:var(--ink-soft)}

/* form */
.form-section{
  background:linear-gradient(140deg,#ffffff,var(--mint-100));
  border:1px solid var(--mint-200);border-radius:24px;padding:38px;
  box-shadow:var(--shadow-md);
}
.form-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:38px;align-items:start}
.form-side h2{font-size:26px;color:var(--mint-900);line-height:1.34}
.form-side p{margin-top:14px;font-size:14.5px;color:var(--ink-soft)}
.form-side .contacts{margin-top:22px;display:grid;gap:11px}
.form-side .contacts div{font-size:14px;color:var(--mint-800);font-weight:600}
.form-side .contacts span{display:block;font-weight:400;color:var(--ink-soft);font-size:13.5px}
form.demand{display:grid;gap:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13.5px;font-weight:600;color:var(--mint-900)}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:14px;color:var(--ink);background:#fff;
  border:1px solid var(--mint-200);border-radius:11px;padding:12px 14px;
  transition:border-color .2s,box-shadow .2s;width:100%;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--mint-500);box-shadow:0 0 0 3px rgba(47,174,133,.16);
}
.field textarea{resize:vertical;min-height:110px}
form.demand .btn{justify-self:flex-start;padding:13px 34px}
.form-note{font-size:12.5px;color:var(--ink-mute)}

/* article */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;
  box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column;
}
.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.article-card .a-cat{font-size:12px;color:var(--mint-700);font-weight:600;margin-bottom:10px}
.article-card h3{font-size:16px;color:var(--mint-900);line-height:1.45;margin-bottom:10px}
.article-card p{font-size:13.6px;color:var(--ink-soft);flex:1}
.article-card .a-link{margin-top:16px;font-size:13.5px;font-weight:600;color:var(--mint-700)}
.article-card:hover .a-link{color:var(--mint-500)}

/* tags cloud */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.tag-cloud span{
  font-size:13.5px;color:var(--mint-800);background:#fff;border:1px solid var(--mint-200);
  padding:8px 16px;border-radius:999px;box-shadow:var(--shadow-sm);
  transition:transform .2s,background .2s,color .2s;
}
.tag-cloud span:hover{transform:translateY(-2px);background:var(--mint-600);color:#fff;border-color:var(--mint-600)}

/* network */
.network-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.network-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;
  box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;
}
.network-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.network-item h3{font-size:15.5px;color:var(--mint-900);margin-bottom:8px}
.network-item p{font-size:13.5px;color:var(--ink-soft)}

/* cta band */
.cta-band{
  background:linear-gradient(130deg,var(--mint-800),var(--mint-600));
  border-radius:24px;padding:44px 40px;color:#eafaf3;
  display:grid;grid-template-columns:1.4fr .6fr;gap:28px;align-items:center;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.cta-band::before{content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.14),transparent 70%)}
.cta-band h2{font-size:clamp(21px,2.6vw,28px);line-height:1.35;position:relative}
.cta-band p{margin-top:12px;font-size:14.5px;color:rgba(234,250,243,.85);position:relative}
.cta-band .cta-actions{display:flex;flex-direction:column;gap:12px;position:relative}
.cta-band .btn-primary{background:#fff;color:var(--mint-800);box-shadow:0 10px 24px rgba(0,0,0,.14)}
.cta-band .btn-primary:hover{background:var(--mint-100)}
.cta-band .btn-ghost{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.35);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.20)}

/* footer */
.site-footer{
  margin-top:70px;background:#0d2b22;color:#cfe6dc;padding:54px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:34px;padding-bottom:38px}
.site-footer h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand img{height:34px;width:auto;background:#fff;border-radius:8px;padding:4px}
.footer-brand strong{color:#fff;font-size:15.5px}
.site-footer p,.site-footer li{font-size:13.5px;color:#a8c7ba;line-height:1.8}
.site-footer ul{display:grid;gap:8px}
.site-footer a{color:#bfdccf;transition:color .2s}
.site-footer a:hover{color:#7be0b7}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 16px}
.footer-qr{display:flex;gap:14px;align-items:center;margin-top:14px}
.footer-qr img{width:94px;height:94px;object-fit:cover;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:#fff}
.footer-qr .qr-info{font-size:12.5px;color:#a8c7ba;display:grid;gap:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:#8fb2a4;
}
.footer-bottom .fb-links{display:flex;flex-wrap:wrap;gap:14px}
.footer-bottom a{color:#a8c7ba}

/* floating */
.float-kf{
  position:fixed;right:20px;bottom:24px;z-index:80;display:flex;flex-direction:column;gap:10px;align-items:flex-end;
}
.float-btn{
  width:50px;height:50px;border-radius:50%;background:#fff;border:1px solid var(--mint-200);
  box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;
  cursor:pointer;color:var(--mint-700);font-weight:800;font-size:13px;
  transition:transform .22s,box-shadow .22s,background .22s;
}
.float-btn:hover{transform:translateY(-3px);background:var(--mint-100)}
.float-btn.top-btn{opacity:0;pointer-events:none;transform:translateY(10px)}
.float-btn.top-btn.show{opacity:1;pointer-events:auto;transform:none}
.kf-pop{
  position:fixed;right:20px;bottom:88px;z-index:81;width:238px;
  background:#fff;border:1px solid var(--mint-200);border-radius:16px;padding:18px;
  box-shadow:var(--shadow-lg);display:none;
}
.kf-pop.show{display:block;animation:fadeUp .28s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.kf-pop h4{font-size:14.5px;color:var(--mint-900);margin-bottom:10px}
.kf-pop img{width:100%;border-radius:10px;margin-bottom:10px}
.kf-pop .kf-line{font-size:12.8px;color:var(--ink-soft);line-height:1.8}
.kf-pop .kf-line b{color:var(--mint-800)}

@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .about-grid{grid-template-columns:1fr;gap:30px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .metrics-band{grid-template-columns:repeat(2,1fr)}
  .price-grid,.review-grid,.article-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .network-grid{grid-template-columns:repeat(2,1fr)}
  .form-layout{grid-template-columns:1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;gap:22px}
  .cta-band .cta-actions{flex-direction:row;flex-wrap:wrap}
}
@media (max-width:860px){
  .nav-wrap{position:fixed;top:70px;left:0;right:0;background:#f7fdfa;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);
    flex-direction:column;align-items:stretch;padding:14px 22px 20px;gap:6px;
    display:none;}
  .nav-wrap.open{display:flex;animation:fadeUp .25s ease}
  .nav-links{flex-direction:column;align-items:stretch;gap:0}
  .nav-links a{padding:11px 12px;border-radius:9px}
  .nav-cta{margin-top:8px}
  .nav-cta .btn{width:100%}
  .menu-toggle{display:flex}
  .header-inner{min-height:64px}
  .nav-wrap{top:64px}
}
@media (max-width:700px){
  .section{padding:54px 0}
  .service-grid,.flow,.price-grid,.review-grid,.article-grid,.case-grid,.network-grid,.grid-3,.grid-2,.gallery-2{grid-template-columns:1fr}
  .metrics-band{grid-template-columns:1fr 1fr;padding:26px 20px;gap:18px}
  .form-section{padding:26px 20px}
  .form-row{grid-template-columns:1fr}
  .hero{padding:48px 0 56px}
  .hero-meta{gap:10px 18px}
  .rating-card{grid-template-columns:1fr;gap:18px;padding:24px}
  .rating-score{border-right:none;border-bottom:1px dashed var(--mint-300);padding:0 0 18px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .cta-band{padding:32px 24px}
  .about-list{grid-template-columns:1fr}
  .float-kf{right:14px;bottom:16px}
  .kf-pop{right:14px;bottom:80px;width:220px}
}
@media (max-width:480px){
  .brand-sub{display:none}
  .footer-grid{grid-template-columns:1fr}
  .metrics-band{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
}