:root{
  --ink:#191c2b;
  --ink-2:#4d536b;
  --muted:#6b7189;
  --bg:#fffdf6;
  --card:#ffffff;
  --line:#e9e1cf;
  --purple:#6b4bf6;
  --pink:#ff4f8b;
  --orange:#ff8a3d;
  --teal:#0fbfb0;
  --yellow:#ffd45e;
  --green:#2fbf6f;
  --radius:20px;
  --shadow:0 10px 26px rgba(25,28,43,.07);
  --max:1200px;
}
*{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:var(--bg);
  background-image:
    radial-gradient(rgba(107,75,246,.08) 1.4px, transparent 1.4px),
    radial-gradient(rgba(255,138,61,.07) 1.4px, transparent 1.4px);
  background-size:26px 26px, 26px 26px;
  background-position:0 0, 13px 13px;
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;border:0}
a{color:inherit}
.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
.section{padding:62px 0}
.section-tight{padding:44px 0}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:800;letter-spacing:-.3px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,253,246,.94);
  backdrop-filter:blur(10px);
  border-bottom:2px solid var(--ink);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 10px 24px rgba(25,28,43,.1)}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:70px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  flex-shrink:0;
}
.ai-page-logo{max-height:36px;width:auto;display:block}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.6px;color:var(--ink)}
.nav-links{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  flex-wrap:wrap;
  gap:0;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-links a{
  display:block;
  padding:9px 13px;
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  text-decoration:none;
  border-radius:10px;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--purple);background:#f1ecff}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:46px;
  height:40px;
  border-radius:12px;
  border:2px solid var(--ink);
  background:#fff;
  box-shadow:3px 3px 0 var(--ink);
  cursor:pointer;
  font-family:inherit;
  padding:0;
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  background:var(--ink);
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:20px;
  height:2px;
  background:var(--ink);
}
.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:13px 28px;
  border-radius:999px;
  font-size:16px;
  font-weight:700;
  font-family:inherit;
  text-decoration:none;
  border:2px solid var(--ink);
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
}
.btn-primary{
  background:var(--purple);
  color:#ffffff;
  box-shadow:4px 4px 0 var(--ink);
}
.btn-primary:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--ink)}
.btn-primary:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}
.btn-ghost{
  background:#ffffff;
  color:var(--ink);
  box-shadow:4px 4px 0 rgba(25,28,43,.18);
}
.btn-ghost:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 rgba(25,28,43,.24)}
.btn-ghost:active{transform:translate(2px,2px);box-shadow:1px 1px 0 rgba(25,28,43,.2)}
.btn-block{width:100%}

/* ---------- hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:54px 0 34px;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(620px 320px at 8% 0%, rgba(107,75,246,.16), transparent 70%),
    radial-gradient(560px 300px at 92% 6%, rgba(255,79,139,.14), transparent 70%),
    radial-gradient(520px 280px at 55% 104%, rgba(15,191,176,.14), transparent 70%);
  pointer-events:none;
  z-index:0;
}
.hero .container{position:relative;z-index:1}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,.8fr);
  gap:42px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  border-radius:999px;
  background:#ffffff;
  border:2px solid var(--ink);
  box-shadow:3px 3px 0 var(--ink);
  font-size:13.5px;
  font-weight:800;
  letter-spacing:.4px;
  color:var(--ink);
  transform:rotate(-1.2deg);
}
.hero h1{
  font-size:clamp(28px,4.4vw,48px);
  margin:20px 0 16px;
  letter-spacing:-.6px;
}
.hero h1 em{
  font-style:normal;
  position:relative;
  white-space:nowrap;
  color:var(--purple);
}
.hero h1 em::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-6px;
  height:8px;
  border-radius:8px;
  background:linear-gradient(90deg,var(--yellow),var(--orange),var(--pink));
  opacity:.85;
  z-index:-1;
}
.hero-lead{
  max-width:640px;
  font-size:16.5px;
  color:var(--ink-2);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.hero-tags li{
  font-size:13.5px;
  padding:6px 15px;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  border:1.5px solid var(--line);
  color:var(--ink-2);
}
.score-card{
  background:#ffffff;
  border:2px solid var(--ink);
  border-radius:24px;
  padding:24px 22px;
  box-shadow:8px 8px 0 rgba(25,28,43,.9);
  transform:rotate(1.4deg);
}
.score-badge{
  display:inline-block;
  padding:3px 12px;
  border-radius:999px;
  background:var(--yellow);
  border:1.5px solid var(--ink);
  font-size:12.5px;
  font-weight:800;
  color:var(--ink);
}
.score-value{
  font-size:52px;
  font-weight:900;
  line-height:1.05;
  color:var(--purple);
  margin-top:12px;
  letter-spacing:-2px;
}
.score-value span{
  font-size:18px;
  font-weight:700;
  color:var(--muted);
  letter-spacing:0;
  margin-left:4px;
}
.score-stars{
  color:var(--orange);
  font-size:19px;
  letter-spacing:3px;
  margin-top:2px;
}
.score-note{
  font-size:14px;
  color:var(--ink-2);
  margin-top:8px;
}
.model-chips{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.model-chips li{
  font-size:12.5px;
  padding:4px 11px;
  border-radius:8px;
  background:#f4f1ff;
  color:#4c33c9;
  font-weight:700;
}
.score-foot{
  font-size:13px;
  color:var(--muted);
  margin-top:14px;
  border-top:1px dashed var(--line);
  padding-top:12px;
}

/* ---------- stats ---------- */
.stats-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-top:46px;
}
.stat{
  background:#ffffff;
  border:1.5px solid var(--line);
  border-left:5px solid var(--purple);
  border-radius:16px;
  padding:16px 18px;
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.stat:hover{transform:translateY(-5px);box-shadow:0 18px 32px rgba(25,28,43,.12)}
.stat strong{
  display:block;
  font-size:26px;
  font-weight:900;
  color:var(--ink);
  line-height:1.2;
}
.stat span{
  font-size:13.5px;
  color:var(--muted);
}
.stat:nth-child(2){border-left-color:var(--orange)}
.stat:nth-child(3){border-left-color:var(--teal)}
.stat:nth-child(4){border-left-color:var(--pink)}

/* ---------- section head ---------- */
.sec-head{max-width:760px;margin-bottom:34px}
.sec-tag{
  display:inline-block;
  padding:4px 14px;
  border-radius:999px;
  background:#f1ecff;
  color:#5a3ce0;
  font-size:13px;
  font-weight:800;
  letter-spacing:.5px;
  margin-bottom:12px;
}
.sec-head h2{
  font-size:clamp(23px,3vw,34px);
  margin-bottom:12px;
}
.sec-head p{color:var(--ink-2);font-size:15.5px}

/* ---------- cards ---------- */
.card{
  background:var(--card);
  border:1.5px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{
  transform:translateY(-6px);
  box-shadow:0 20px 36px rgba(25,28,43,.12);
  border-color:#d9cfb8;
}

/* ---------- about ---------- */
.about-grid{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:36px;
  align-items:start;
}
.about-list{display:grid;gap:12px;margin-top:22px}
.about-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  background:#ffffff;
  border:1.5px solid var(--line);
  border-radius:14px;
  padding:14px 16px;
  box-shadow:0 6px 16px rgba(25,28,43,.05);
}
.about-list b{
  flex-shrink:0;
  width:26px;
  height:26px;
  border-radius:9px;
  background:var(--yellow);
  border:1.5px solid var(--ink);
  display:grid;
  place-items:center;
  font-size:13px;
  color:var(--ink);
}
.about-list span{
  font-size:14.5px;
  color:var(--ink-2);
}
.about-list span strong{color:var(--ink)}
.media-stack{display:grid;gap:16px}
.media-frame{
  border:2px solid var(--ink);
  border-radius:18px;
  background:#f7f2e6;
  overflow:hidden;
  box-shadow:6px 6px 0 rgba(25,28,43,.85);
}
.media-frame img{
  display:block;
  width:100%;
  height:auto;
  object-fit:contain;
}
.media-frame.ratio-169 img{aspect-ratio:16/9}
.media-frame.ratio-43 img{aspect-ratio:4/3}

/* ---------- services ---------- */
.service-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(275px,1fr));
  gap:18px;
}
.service-card{
  padding:22px;
  border-top:4px solid var(--purple);
}
.service-card:nth-child(3n+2){border-top-color:var(--orange)}
.service-card:nth-child(3n){border-top-color:var(--teal)}
.service-card h3{
  font-size:17.5px;
  margin-bottom:8px;
}
.service-card p{
  font-size:14.5px;
  color:var(--ink-2);
}
.service-meta{
  display:inline-block;
  margin-top:14px;
  font-size:12.5px;
  font-weight:700;
  color:#5a3ce0;
  background:#f4f1ff;
  border-radius:8px;
  padding:3px 10px;
}

/* ---------- steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(210px,1fr));
  gap:16px;
}
.step{
  padding:20px;
  background:#ffffff;
  border:1.5px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-5px);box-shadow:0 18px 32px rgba(25,28,43,.12)}
.step-num{
  width:36px;
  height:36px;
  border-radius:12px;
  display:grid;
  place-items:center;
  font-weight:900;
  font-size:15px;
  background:var(--yellow);
  border:2px solid var(--ink);
  color:var(--ink);
  margin-bottom:14px;
}
.step:nth-child(2) .step-num{background:#d7fbef}
.step:nth-child(3) .step-num{background:#ffe2ea}
.step:nth-child(4) .step-num{background:#e4ddff}
.step:nth-child(5) .step-num{background:#ffeecf}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-2)}

/* ---------- solutions ---------- */
.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:28px;
}
.tag-cloud li{
  padding:8px 17px;
  border-radius:999px;
  background:#ffffff;
  border:1.5px solid var(--line);
  font-size:14px;
  color:var(--ink-2);
  transition:transform .2s ease,color .2s ease,border-color .2s ease;
}
.tag-cloud li:hover{transform:translateY(-3px);color:var(--purple);border-color:var(--purple)}
.solution-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:18px;
}
.solution-card{padding:22px}
.solution-card h3{font-size:17px;margin-bottom:10px}
.solution-card p{font-size:14.5px;color:var(--ink-2)}
.solution-card ul{
  margin-top:14px;
  display:grid;
  gap:7px;
}
.solution-card ul li{
  font-size:14px;
  color:var(--ink-2);
  padding-left:16px;
  position:relative;
}
.solution-card ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--teal);
}

/* ---------- network ---------- */
.network-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:30px;
  align-items:start;
}
.network-list{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  gap:12px;
}
.network-item{
  background:#ffffff;
  border:1.5px solid var(--line);
  border-radius:14px;
  padding:14px 16px;
  box-shadow:0 6px 16px rgba(25,28,43,.05);
  transition:transform .2s ease,border-color .2s ease;
}
.network-item:hover{transform:translateY(-4px);border-color:var(--purple)}
.network-item strong{display:block;font-size:15px;color:var(--ink)}
.network-item span{font-size:13px;color:var(--muted)}
.network-note{
  background:#ffffff;
  border:2px solid var(--ink);
  border-radius:18px;
  padding:22px;
  box-shadow:6px 6px 0 rgba(25,28,43,.85);
}
.network-note h3{font-size:17px;margin-bottom:10px}
.network-note p{font-size:14.5px;color:var(--ink-2)}
.network-note p + p{margin-top:10px}

/* ---------- timeline ---------- */
.timeline{
  position:relative;
  padding-left:30px;
  max-width:860px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;
  top:8px;
  bottom:8px;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--purple),var(--pink),var(--orange));
  opacity:.55;
}
.tl-item{
  position:relative;
  background:#ffffff;
  border:1.5px solid var(--line);
  border-radius:16px;
  padding:18px 20px;
  box-shadow:0 6px 16px rgba(25,28,43,.05);
  margin-bottom:16px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.tl-item:hover{transform:translateX(4px);box-shadow:0 14px 28px rgba(25,28,43,.1)}
.tl-item::before{
  content:"";
  position:absolute;
  left:-28px;
  top:22px;
  width:14px;
  height:14px;
  border-radius:50%;
  background:#ffffff;
  border:3px solid var(--purple);
}
.tl-item:nth-child(2)::before{border-color:var(--pink)}
.tl-item:nth-child(3)::before{border-color:var(--orange)}
.tl-item:nth-child(4)::before{border-color:var(--teal)}
.tl-item h3{font-size:16.5px;margin-bottom:6px}
.tl-item p{font-size:14.5px;color:var(--ink-2)}

/* ---------- cases ---------- */
.case-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(290px,1fr));
  gap:20px;
}
.case-card{overflow:hidden;padding:14px}
.case-media{
  border-radius:14px;
  background:#f7f2e6;
  border:1.5px solid var(--line);
  overflow:hidden;
}
.case-media img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:16/10;
  object-fit:contain;
}
.case-card.square .case-media img{aspect-ratio:1/1}
.case-body{padding:16px 6px 6px}
.case-body h3{font-size:17px;margin-bottom:8px}
.case-body p{font-size:14.5px;color:var(--ink-2)}

/* ---------- compare ---------- */
.compare-top{
  display:grid;
  grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);
  gap:24px;
  align-items:stretch;
  margin-bottom:26px;
}
.rank-card{
  background:#ffffff;
  border:2px solid var(--ink);
  border-radius:22px;
  padding:26px;
  box-shadow:7px 7px 0 rgba(25,28,43,.88);
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.rank-card .rank-label{
  font-size:13px;
  font-weight:800;
  color:#5a3ce0;
  background:#f1ecff;
  border-radius:999px;
  padding:4px 14px;
  align-self:flex-start;
}
.rank-score{
  font-size:56px;
  font-weight:900;
  line-height:1.05;
  color:var(--purple);
  letter-spacing:-2px;
  margin-top:14px;
}
.rank-score span{font-size:18px;color:var(--muted);letter-spacing:0;margin-left:4px}
.rank-stars{color:var(--orange);font-size:20px;letter-spacing:3px;margin-top:2px}
.rank-desc{font-size:14.5px;color:var(--ink-2);margin-top:12px}
.adv-list{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
  gap:12px;
}
.adv-item{
  background:#ffffff;
  border:1.5px solid var(--line);
  border-radius:14px;
  padding:14px 16px;
  box-shadow:0 6px 16px rgba(25,28,43,.05);
}
.adv-item strong{display:block;font-size:15px;color:var(--ink)}
.adv-item span{font-size:13.5px;color:var(--muted)}
.table-wrap{
  overflow-x:auto;
  background:#ffffff;
  border:1.5px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow);
}
table{width:100%;border-collapse:collapse;min-width:660px}
th,td{
  padding:14px 16px;
  text-align:left;
  font-size:14.5px;
  border-bottom:1px solid #f1ebdd;
  vertical-align:top;
}
thead th{
  background:#f8f3e7;
  font-weight:800;
  color:var(--ink);
  white-space:nowrap;
}
tbody tr:last-child td{border-bottom:none}
td.col-hi{background:rgba(107,75,246,.06);font-weight:700;color:#3f2bb5}
td.col-dim{color:var(--muted)}

/* ---------- token ---------- */
.token-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:18px;
}
.token-card{
  padding:24px;
  position:relative;
}
.token-card.featured{
  border:2px solid var(--ink);
  box-shadow:6px 6px 0 rgba(25,28,43,.88);
}
.token-card h3{font-size:17.5px;margin-bottom:8px}
.token-price{
  font-size:15px;
  font-weight:800;
  color:var(--purple);
  margin-bottom:10px;
}
.token-card p{font-size:14.5px;color:var(--ink-2)}
.token-card ul{margin-top:14px;display:grid;gap:8px}
.token-card ul li{
  font-size:14px;
  color:var(--ink-2);
  padding-left:18px;
  position:relative;
}
.token-card ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--orange);
}
.token-tip{
  margin-top:18px;
  font-size:13.5px;
  color:var(--muted);
  background:rgba(255,255,255,.8);
  border:1.5px dashed var(--line);
  border-radius:14px;
  padding:14px 18px;
}

/* ---------- form ---------- */
.match-wrap{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:30px;
  align-items:start;
}
.match-info{
  background:#ffffff;
  border:2px solid var(--ink);
  border-radius:20px;
  padding:24px;
  box-shadow:6px 6px 0 rgba(25,28,43,.85);
}
.match-info h3{font-size:18px;margin-bottom:12px}
.match-info p{font-size:14.5px;color:var(--ink-2)}
.match-points{display:grid;gap:10px;margin-top:16px}
.match-points li{
  font-size:14px;
  color:var(--ink-2);
  padding-left:18px;
  position:relative;
}
.match-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--purple);
}
.demand-form{
  background:#ffffff;
  border:1.5px solid var(--line);
  border-radius:20px;
  padding:24px;
  box-shadow:var(--shadow);
}
.form-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.form-field{display:flex;flex-direction:column;gap:6px}
.form-field.full{grid-column:1 / -1}
.form-field label{font-size:14px;font-weight:700;color:var(--ink)}
.form-field input,
.form-field select,
.form-field textarea{
  font-family:inherit;
  font-size:15px;
  color:var(--ink);
  background:#fffdf8;
  border:1.5px solid #e2d9c6;
  border-radius:12px;
  padding:12px 14px;
  width:100%;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field textarea{min-height:112px;resize:vertical}
.form-field input::placeholder,
.form-field textarea::placeholder{color:#9aa0b3}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  outline:none;
  border-color:var(--purple);
  box-shadow:0 0 0 4px rgba(107,75,246,.13);
}
.form-submit{margin-top:18px}
.form-note{font-size:13px;color:var(--muted);margin-top:12px}

/* ---------- reviews ---------- */
.review-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(290px,1fr));
  gap:18px;
}
.review-card{padding:22px;display:flex;flex-direction:column;gap:14px}
.review-head{display:flex;align-items:center;gap:12px}
.avatar{
  width:44px;
  height:44px;
  border-radius:14px;
  display:grid;
  place-items:center;
  font-weight:900;
  font-size:17px;
  color:var(--ink);
  border:2px solid var(--ink);
  background:var(--yellow);
  flex-shrink:0;
}
.review-card:nth-child(2) .avatar{background:#d7fbef}
.review-card:nth-child(3) .avatar{background:#ffe2ea}
.review-card:nth-child(4) .avatar{background:#e4ddff}
.review-card:nth-child(5) .avatar{background:#ffeecf}
.review-card:nth-child(6) .avatar{background:#ddf0ff}
.review-name{font-size:15.5px;font-weight:800;color:var(--ink)}
.review-role{font-size:13px;color:var(--muted)}
.review-text{font-size:14.5px;color:var(--ink-2)}
.review-stars{color:var(--orange);font-size:15px;letter-spacing:2px}

/* ---------- help & faq ---------- */
.help-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:16px;
  margin-bottom:30px;
}
.help-card{padding:20px}
.help-card h3{font-size:16.5px;margin-bottom:8px}
.help-card p{font-size:14px;color:var(--ink-2)}
.faq-list{max-width:920px}
.faq-item{
  background:#ffffff;
  border:1.5px solid var(--line);
  border-radius:16px;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:0 6px 16px rgba(25,28,43,.05);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.open{border-color:var(--purple);box-shadow:0 12px 26px rgba(107,75,246,.12)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:17px 20px;
  background:none;
  border:0;
  font-family:inherit;
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  text-align:left;
  cursor:pointer;
}
.faq-icon{
  flex-shrink:0;
  width:26px;
  height:26px;
  border-radius:9px;
  display:grid;
  place-items:center;
  background:#f3eefe;
  color:var(--purple);
  font-weight:900;
  font-size:16px;
  line-height:1;
  transition:transform .3s ease,background .3s ease,color .3s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--purple);color:#ffffff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{
  padding:0 20px 18px;
  font-size:14.5px;
  color:var(--ink-2);
}

/* ---------- wiki & news ---------- */
.wiki-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:14px;
}
.wiki-card{
  background:#ffffff;
  border:1.5px solid var(--line);
  border-radius:14px;
  padding:16px 18px;
  box-shadow:0 6px 16px rgba(25,28,43,.05);
}
.wiki-card strong{display:block;font-size:15px;color:var(--ink)}
.wiki-card span{font-size:13.5px;color:var(--muted)}
.news-list{display:grid;gap:12px;max-width:900px}
.news-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:#ffffff;
  border:1.5px solid var(--line);
  border-radius:14px;
  padding:15px 18px;
  text-decoration:none;
  box-shadow:0 6px 16px rgba(25,28,43,.05);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.news-item:hover{transform:translateX(5px);border-color:var(--purple);box-shadow:0 12px 26px rgba(107,75,246,.12)}
.news-title{font-size:15px;font-weight:700;color:var(--ink)}
.news-more{font-size:13px;color:var(--purple);font-weight:800;white-space:nowrap}

/* ---------- contact ---------- */
.contact-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:28px;
  align-items:start;
}
.contact-list{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:14px;
}
.contact-item{
  background:#ffffff;
  border:1.5px solid var(--line);
  border-radius:14px;
  padding:15px 18px;
  box-shadow:0 6px 16px rgba(25,28,43,.05);
}
.contact-item strong{display:block;font-size:13px;color:var(--muted);font-weight:700;margin-bottom:4px}
.contact-item span,
.contact-item a{font-size:15px;color:var(--ink);font-weight:700;text-decoration:none;word-break:break-all}
.contact-item a:hover{color:var(--purple)}
.qr-card{
  background:#ffffff;
  border:2px solid var(--ink);
  border-radius:20px;
  padding:20px;
  box-shadow:6px 6px 0 rgba(25,28,43,.85);
  text-align:center;
}
.qr-card img{
  width:100%;
  max-width:190px;
  height:auto;
  border-radius:12px;
  display:block;
  margin:0 auto 12px;
}
.qr-card p{font-size:14px;color:var(--ink-2)}
.join-card{
  margin-top:22px;
  background:linear-gradient(120deg,#f4f1ff,#fff4e8 60%,#e9fbf7);
  border:1.5px solid var(--line);
  border-radius:18px;
  padding:22px;
}
.join-card h3{font-size:17px;margin-bottom:8px}
.join-card p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px}

/* ---------- footer ---------- */
.site-footer{
  margin-top:20px;
  background:#fbf4e4;
  border-top:2px solid var(--ink);
  color:var(--ink);
  padding-top:40px;
}
.footer-inner{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);
  gap:34px;
  padding-bottom:30px;
}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--ink-2);margin-bottom:6px}
.footer-brand a{color:var(--ink-2);text-decoration:none}
.footer-brand a:hover{color:var(--purple)}
.footer-title{
  font-size:15px;
  font-weight:800;
  color:var(--ink);
  margin-bottom:12px;
}
.footer-links ul{
  display:flex;
  flex-wrap:wrap;
  gap:10px 18px;
}
.footer-links a{
  font-size:14px;
  color:var(--ink-2);
  text-decoration:none;
  transition:color .2s ease;
}
.footer-links a:hover{color:var(--purple)}
.footer-bottom{
  border-top:1px dashed #ddd2b8;
  padding-top:16px;
  padding-bottom:18px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13.5px;
  color:#6b7189;
}
.footer-bottom a{
  color:#4d536b;
  text-decoration:none;
  font-weight:700;
}
.footer-bottom a:hover{color:var(--purple)}

/* ---------- float tools ---------- */
.float-tools{
  position:fixed;
  right:16px;
  bottom:20px;
  display:flex;
  flex-direction:column;
  gap:10px;
  z-index:120;
}
.float-btn{
  width:50px;
  height:50px;
  border-radius:15px;
  background:#ffffff;
  border:2px solid var(--ink);
  box-shadow:3px 3px 0 var(--ink);
  display:grid;
  place-items:center;
  font-family:inherit;
  font-size:13px;
  font-weight:800;
  color:var(--ink);
  text-decoration:none;
  cursor:pointer;
  padding:0;
  transition:transform .16s ease,box-shadow .16s ease;
}
.float-btn:hover{transform:translate(-1px,-1px);box-shadow:4px 4px 0 var(--ink)}
.float-btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}

/* ---------- reveal ---------- */
.js-ready .reveal{
  opacity:0;
  transform:translateY(20px);
  transition:opacity .6s ease,transform .6s ease;
}
.js-ready .reveal.in{opacity:1;transform:translateY(0)}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    display:none;
    flex-direction:column;
    align-items:stretch;
    background:#fffdf6;
    border-bottom:2px solid var(--ink);
    padding:8px 20px 16px;
    box-shadow:0 16px 28px rgba(25,28,43,.1);
    gap:0;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 6px;border-bottom:1px dashed #e6dfcd;border-radius:0}
  .nav-links li:last-child a{border-bottom:none}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .score-card{transform:rotate(0);box-shadow:5px 5px 0 rgba(25,28,43,.88)}
  .about-grid{grid-template-columns:1fr}
  .network-wrap{grid-template-columns:1fr}
  .compare-top{grid-template-columns:1fr}
  .match-wrap{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr;gap:24px}
  .stats-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .section{padding:46px 0}
  .hero{padding:38px 0 26px}
  .hero-actions .btn{flex:1 1 100%}
  .form-grid{grid-template-columns:1fr}
  .stats-strip{gap:12px}
  .stat{padding:14px}
  .stat strong{font-size:22px}
  .rank-score{font-size:46px}
  .score-value{font-size:44px}
  .float-tools{right:12px;bottom:14px}
  .float-btn{width:46px;height:46px;font-size:12px}
  .timeline{padding-left:26px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js-ready .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}