*{box-sizing:border-box}
:root{
  --ink:#0f1a33;
  --ink2:#3b4767;
  --ink3:#6d7896;
  --line:rgba(24,50,120,.12);
  --brand:#2b6bff;
  --violet:#7c5cff;
  --cyan:#00c8ff;
  --pink:#ff4fd8;
  --radius:18px;
  --shadow-s:0 4px 16px rgba(24,50,120,.06);
  --shadow-m:0 14px 34px rgba(24,50,120,.12);
  --grad:linear-gradient(120deg,#2b6bff,#7c5cff 52%,#ff4fd8);
}
html{scroll-behavior:smooth}
html,body{overflow-x:hidden}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);
  font-size:16px;
  line-height:1.7;
  background-color:#f6f9ff;
  background-image:
    radial-gradient(820px 520px at 6% -6%, rgba(0,200,255,.20), transparent 62%),
    radial-gradient(760px 480px at 96% 4%, rgba(124,92,255,.18), transparent 64%),
    radial-gradient(900px 600px at 48% 42%, rgba(255,79,216,.09), transparent 66%),
    radial-gradient(760px 560px at 92% 96%, rgba(43,107,255,.14), transparent 64%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%}
a{color:inherit}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
section[id]{scroll-margin-top:84px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:90;background:rgba(255,255,255,.84);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:box-shadow .3s ease}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(24,50,120,.10)}
.nav-wrap{position:relative;display:flex;align-items:center;gap:18px;min-height:68px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;flex-shrink:0}
.ai-page-logo{max-height:30px;width:auto;display:block}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.5px;color:#132353;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:0;margin-left:auto}
.nav-links a{display:block;padding:8px 13px;border-radius:9px;font-size:15px;font-weight:500;color:var(--ink2);text-decoration:none;white-space:nowrap;transition:color .2s ease,background .2s ease}
.nav-links a:hover{color:#1f4bd8;background:rgba(43,107,255,.08)}
.nav-cta{display:flex;align-items:center;flex-shrink:0}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:18px;height:2px;background:#1b2a52;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#1b2a52;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:13px 26px;border-radius:999px;font-size:15.5px;font-weight:600;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease}
.btn-primary{background-image:var(--grad);background-size:170% 170%;color:#fff;box-shadow:0 10px 26px rgba(60,90,220,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(60,90,220,.42)}
.btn-ghost{background:#fff;color:#1b2a52;border-color:rgba(24,50,120,.16);box-shadow:var(--shadow-s)}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(43,107,255,.45);color:#1f4bd8}
.btn:active{transform:translateY(0) scale(.985)}
.btn-sm{padding:9px 18px;font-size:14px}

/* ---------- eyebrow / titles ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;background:rgba(43,107,255,.09);border:1px solid rgba(43,107,255,.18);color:#1f4bd8;font-size:13.5px;font-weight:600;letter-spacing:.4px}
.section{padding:72px 0;position:relative}
.section-tint{background:rgba(255,255,255,.62);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:730px;margin:0 auto 42px;text-align:center}
.section-head h2{font-size:clamp(23px,2.8vw,32px);line-height:1.35;margin:14px 0 12px;letter-spacing:-.4px;color:#0f1a33}
.section-head p{margin:0;color:var(--ink2);font-size:15.5px}

/* ---------- hero ---------- */
.hero{padding:54px 0 60px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(620px 320px at 14% -4%,rgba(0,200,255,.20),transparent 66%),radial-gradient(560px 340px at 86% 12%,rgba(124,92,255,.20),transparent 66%)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(27px,4vw,44px);line-height:1.24;letter-spacing:-1px;margin:18px 0 16px;color:#0b1530}
.hero-lead{margin:0 0 26px;color:var(--ink2);font-size:16.5px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:20px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin:0;padding:0;list-style:none;font-size:14px;color:var(--ink2)}
.hero-points li{position:relative;padding-left:18px}
.hero-points li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background-image:var(--grad)}
.hero-visual{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:32px 24px;border-radius:26px;border:1px solid rgba(124,92,255,.22);background:linear-gradient(150deg,rgba(43,107,255,.10),rgba(124,92,255,.10) 48%,rgba(255,79,216,.12));overflow:hidden}
.hv-glow{position:absolute;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(124,92,255,.42),transparent 70%);filter:blur(26px);top:50%;left:50%;transform:translate(-50%,-50%)}
.hv-title{position:relative;z-index:2;margin:0;font-size:14px;font-weight:700;color:#22346b;letter-spacing:.6px}
.hv-chips{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:360px}
.hv-chip{padding:7px 14px;border-radius:999px;background:rgba(255,255,255,.92);border:1px solid rgba(124,92,255,.22);font-size:13.5px;font-weight:600;color:#22346b;box-shadow:0 6px 16px rgba(24,50,120,.08);animation:chipFloat 5.5s ease-in-out infinite}
.hv-chip:nth-child(2n){animation-delay:.7s}
.hv-chip:nth-child(3n){animation-delay:1.3s}
.hv-note{position:relative;z-index:2;margin:4px 0 0;font-size:13px;color:#43527a;text-align:center}
@keyframes chipFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

.metrics{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.metric{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 18px;text-align:center;box-shadow:var(--shadow-s);transition:transform .26s ease,box-shadow .26s ease}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow-m)}
.metric strong{display:block;font-size:26px;letter-spacing:-.5px;background-image:var(--grad);-webkit-background-clip:text;background-clip:text;color:#2b4bd8}
.metric span{display:block;margin-top:6px;font-size:13.5px;color:var(--ink2)}

/* ---------- cards ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-s);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-m);border-color:rgba(43,107,255,.3)}
.card h3{margin:0 0 10px;font-size:17.5px;color:#12224d}
.card p{margin:0;color:var(--ink2);font-size:14.5px}
.card-bar{display:block;width:30px;height:4px;border-radius:4px;background-image:var(--grad);margin-bottom:16px}
.card-tag{display:inline-block;margin-top:14px;padding:4px 11px;border-radius:999px;background:rgba(43,107,255,.08);color:#1f4bd8;font-size:12.5px;font-weight:600}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:start}
.about-grid h2{font-size:clamp(22px,2.6vw,31px);line-height:1.35;margin:14px 0 16px;letter-spacing:-.4px}
.about-grid .about-lead{margin:0 0 18px;color:var(--ink2);font-size:15.5px}
.about-quote{margin:0;padding:18px 20px;border-left:3px solid transparent;border-image:var(--grad) 1;background:rgba(43,107,255,.05);border-radius:0 14px 14px 0;color:#22346b;font-size:14.5px}
.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:18px 26px;margin:0;padding:0;list-style:none}
.feature-list li{position:relative;padding-left:16px}
.feature-list li::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:3px;background-image:var(--grad)}
.feature-list strong{display:block;font-size:15px;color:#12224d;margin-bottom:4px}
.feature-list span{display:block;font-size:13.8px;color:var(--ink2);line-height:1.65}

/* ---------- grids ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}

.scene-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow-s);transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(255,79,216,.28)}
.scene-card h3{margin:0 0 8px;font-size:16px;color:#12224d}
.scene-card p{margin:0;font-size:13.8px;color:var(--ink2);line-height:1.65}

.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;padding:22px;border-radius:16px;background:rgba(255,255,255,.78);border:1px dashed rgba(43,107,255,.28)}
.tag-cloud .tag-label{font-size:13.5px;font-weight:700;color:#1f4bd8;margin-right:4px;align-self:center}
.tag{padding:6px 13px;border-radius:999px;background:#fff;border:1px solid rgba(24,50,120,.12);font-size:13px;color:#33406b;transition:border-color .2s ease,color .2s ease,transform .2s ease}
.tag:hover{border-color:rgba(43,107,255,.45);color:#1f4bd8;transform:translateY(-2px)}
.models-panel{margin-top:26px}
.models-panel .tag{font-size:13.2px}

/* ---------- network ---------- */
.net-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow-s);transition:transform .26s ease,box-shadow .26s ease}
.net-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-m)}
.net-card strong{display:block;font-size:15px;color:#12224d;margin-bottom:6px}
.net-card span{display:block;font-size:13px;color:var(--ink2);line-height:1.6}

/* ---------- process ---------- */
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:step}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 18px;box-shadow:var(--shadow-s);transition:transform .26s ease,box-shadow .26s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-m)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;background-image:var(--grad);color:#fff;font-size:14px;font-weight:700;margin-bottom:14px}
.step h3{margin:0 0 8px;font-size:15.5px;color:#12224d}
.step p{margin:0;font-size:13.5px;color:var(--ink2);line-height:1.65}

/* ---------- cases ---------- */
.case{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-s);transition:transform .28s ease,box-shadow .28s ease}
.case:hover{transform:translateY(-5px);box-shadow:var(--shadow-m)}
.case-media{aspect-ratio:16/10;overflow:hidden;background:#eaf0ff}
.case-media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}
.case:hover .case-media img{transform:scale(1.04)}
.case-body{padding:20px 22px 22px}
.case-body h3{margin:0 0 8px;font-size:16.5px;color:#12224d}
.case-body p{margin:0;font-size:14px;color:var(--ink2)}
.case-meta{margin-top:12px;font-size:12.5px;color:#1f4bd8;font-weight:600}

/* ---------- review ---------- */
.score-card{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-s);margin-bottom:26px}
.score-main{text-align:center;border-right:1px dashed rgba(24,50,120,.16);padding-right:20px}
.score-num{font-size:56px;font-weight:800;letter-spacing:-2px;line-height:1;background-image:var(--grad);-webkit-background-clip:text;background-clip:text;color:#2b4bd8}
.score-total{font-size:16px;font-weight:600;color:var(--ink2);margin-left:6px}
.score-label{display:block;margin-top:10px;font-size:14px;color:var(--ink2)}
.score-info h3{margin:0 0 8px;font-size:18px;color:#12224d}
.score-stars{color:#ff9e2c;font-size:22px;letter-spacing:3px;line-height:1}
.score-info p{margin:10px 0 0;font-size:14.5px;color:var(--ink2)}

.table-wrap{overflow-x:auto;border-radius:16px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-s)}
table{width:100%;border-collapse:collapse;min-width:680px;font-size:14.3px}
thead th{background:linear-gradient(180deg,#f2f6ff,#e9f0ff);color:#16244a;font-weight:700;text-align:left;padding:14px 16px;white-space:nowrap;border-bottom:1px solid rgba(24,50,120,.1)}
tbody td{padding:13px 16px;border-bottom:1px solid rgba(24,50,120,.07);color:var(--ink2);vertical-align:top}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#f7faff}
tbody td:first-child{color:#12224d;font-weight:600}
tbody td:nth-child(2){color:#1b3fa8;font-weight:600}
.table-note{margin:14px 0 0;font-size:13px;color:var(--ink3)}

/* ---------- reviews ---------- */
.review-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow-s);display:flex;flex-direction:column;gap:14px;transition:transform .26s ease,box-shadow .26s ease}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m)}
.review-text{margin:0;font-size:14.5px;color:#2a3a63;line-height:1.75}
.review-user{display:flex;align-items:center;gap:10px;margin-top:auto}
.review-dot{width:34px;height:34px;border-radius:50%;background-image:var(--grad);flex-shrink:0}
.review-role{font-size:13.5px;font-weight:700;color:#12224d}
.review-role small{display:block;font-weight:500;font-size:12.5px;color:var(--ink3)}

/* ---------- form ---------- */
.form-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:start}
.form-side h2{font-size:clamp(22px,2.6vw,30px);line-height:1.36;margin:14px 0 14px;letter-spacing:-.4px}
.form-side p{margin:0 0 18px;color:var(--ink2);font-size:15px}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.side-list li{position:relative;padding-left:24px;font-size:14.3px;color:var(--ink2)}
.side-list li::before{content:"";position:absolute;left:0;top:6px;width:12px;height:12px;border-radius:4px;background-image:var(--grad)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-m)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field label{font-size:13.5px;font-weight:600;color:#22346b}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border-radius:12px;border:1px solid rgba(24,50,120,.16);background:#fbfcff;font-size:14.5px;color:#12224d;font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.field textarea{min-height:108px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:rgba(43,107,255,.55);background:#fff;box-shadow:0 0 0 4px rgba(43,107,255,.12)}
.form-card .btn{width:100%;margin-top:4px}
.form-tip{margin:12px 0 0;font-size:12.5px;color:var(--ink3);text-align:center}

/* ---------- faq ---------- */
.faq-list{max-width:880px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 20px;box-shadow:var(--shadow-s);transition:border-color .25s ease,box-shadow .25s ease}
.faq-item[open]{border-color:rgba(43,107,255,.32);box-shadow:0 12px 28px rgba(24,50,120,.1)}
.faq-item summary{list-style:none;cursor:pointer;padding:17px 34px 17px 0;font-size:15.5px;font-weight:600;color:#12224d;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:20px;font-weight:500;color:#2b6bff;line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-item p{margin:0;padding:0 0 18px;font-size:14.3px;color:var(--ink2);border-top:1px solid rgba(24,50,120,.07);padding-top:14px}

/* ---------- insights ---------- */
.insight-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:start}
.insight-lead{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-s);transition:transform .28s ease,box-shadow .28s ease}
.insight-lead:hover{transform:translateY(-4px);box-shadow:var(--shadow-m)}
.insight-lead .lead-media{aspect-ratio:16/9;overflow:hidden;background:#eaf0ff}
.insight-lead .lead-media img{width:100%;height:100%;object-fit:cover;display:block}
.insight-lead .lead-body{padding:22px 24px 24px}
.insight-lead h3{margin:0 0 10px;font-size:18px;color:#12224d}
.insight-lead p{margin:0 0 14px;font-size:14.3px;color:var(--ink2)}
.insight-list{display:grid;gap:12px}
.insight-item{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;text-decoration:none;box-shadow:var(--shadow-s);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.insight-item:hover{transform:translateX(4px);box-shadow:var(--shadow-m);border-color:rgba(43,107,255,.32)}
.insight-item strong{display:block;font-size:15px;color:#12224d;margin-bottom:6px}
.insight-item span{display:block;font-size:13.3px;color:var(--ink2)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:#1f4bd8;text-decoration:none}
.link-more:hover{text-decoration:underline}

/* ---------- help ---------- */
.help-card{display:block;text-decoration:none;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow-s);transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease}
.help-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(124,92,255,.34)}
.help-card strong{display:block;font-size:16px;color:#12224d;margin-bottom:8px}
.help-card span{display:block;font-size:13.8px;color:var(--ink2);line-height:1.65}

/* ---------- join ---------- */
.join-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px;box-shadow:var(--shadow-m)}
.join-wrap h2{font-size:clamp(22px,2.6vw,30px);line-height:1.36;margin:14px 0 14px;letter-spacing:-.4px}
.join-wrap p{margin:0 0 20px;color:var(--ink2);font-size:15px}
.join-points{display:grid;grid-template-columns:1fr 1fr;gap:14px;list-style:none;margin:22px 0 0;padding:0}
.join-points li{background:rgba(43,107,255,.06);border:1px solid rgba(43,107,255,.14);border-radius:12px;padding:14px 16px}
.join-points strong{display:block;font-size:14.5px;color:#12224d;margin-bottom:4px}
.join-points span{display:block;font-size:13px;color:var(--ink2);line-height:1.6}
.join-cta{background:linear-gradient(150deg,rgba(43,107,255,.10),rgba(255,79,216,.10));border:1px solid rgba(124,92,255,.2);border-radius:18px;padding:26px;text-align:center}
.join-cta p{margin:0 0 16px;font-size:14.5px;color:#22346b}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:start}
.contact-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:0;padding:0;list-style:none}
.contact-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow-s);transition:transform .24s ease,box-shadow .24s ease}
.contact-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-m)}
.contact-item strong{display:block;font-size:13px;color:var(--ink3);font-weight:600;margin-bottom:6px}
.contact-item span,.contact-item a{font-size:15px;color:#12224d;font-weight:600;text-decoration:none;word-break:break-all}
.contact-item a:hover{color:#1f4bd8;text-decoration:underline}
.qr-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;text-align:center;box-shadow:var(--shadow-m)}
.qr-card img{width:180px;max-width:100%;height:auto;border-radius:12px;display:block;margin:0 auto 14px;border:1px solid rgba(24,50,120,.1)}
.qr-card p{margin:0;font-size:13.8px;color:var(--ink2)}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:36px 0 26px;color:#22346b}
.footer-links{display:flex;flex-wrap:wrap;align-items:flex-start;gap:10px 14px;padding-bottom:22px;border-bottom:1px solid rgba(24,50,120,.1)}
.footer-label{font-size:13.5px;font-weight:700;color:#12224d;flex-shrink:0;padding-top:5px}
.link-cloud{display:flex;flex-wrap:wrap;gap:8px 16px}
.link-cloud a{font-size:13.5px;color:#33406b;text-decoration:none;transition:color .2s ease}
.link-cloud a:hover{color:#1f4bd8;text-decoration:underline}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 20px;padding-top:18px;font-size:13px;color:#4a5680}
.footer-bottom a{color:#22346b;text-decoration:none}
.footer-bottom a:hover{color:#1f4bd8;text-decoration:underline}

/* ---------- floats ---------- */
.float-support{position:fixed;right:20px;bottom:24px;z-index:120;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.support-btn{padding:13px 20px;border-radius:999px;border:none;background-image:var(--grad);color:#fff;font-size:14.5px;font-weight:600;cursor:pointer;box-shadow:0 12px 28px rgba(60,90,220,.36);transition:transform .22s ease,box-shadow .22s ease}
.support-btn:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(60,90,220,.46)}
.support-panel{display:none;width:230px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 20px 44px rgba(24,50,120,.18);text-align:center}
.support-panel.is-open{display:block;animation:panelIn .28s ease}
@keyframes panelIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.support-panel img{width:150px;max-width:100%;height:auto;border-radius:10px;display:block;margin:0 auto 12px}
.support-panel strong{display:block;font-size:14px;color:#12224d;margin-bottom:8px}
.support-panel p{margin:0 0 6px;font-size:13px;color:var(--ink2)}
.support-panel a{color:#1f4bd8;text-decoration:none}
.back-top{position:fixed;right:20px;bottom:86px;z-index:119;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:#1b2a52;font-size:13px;font-weight:700;cursor:pointer;box-shadow:var(--shadow-s);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .26s ease,transform .26s ease,visibility .26s}
.back-top.is-show{opacity:1;visibility:visible;transform:none}
.back-top:hover{border-color:rgba(43,107,255,.45);color:#1f4bd8}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hv-chip{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-links{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;margin-left:0;padding:8px 20px 16px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 20px 40px rgba(24,50,120,.14)}
  .nav-links.is-open{display:flex}
  .nav-links a{padding:12px 4px;border-bottom:1px solid rgba(24,50,120,.07)}
  .nav-cta{display:none}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-visual{order:2}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:28px}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:repeat(2,1fr)}
  .score-card{grid-template-columns:1fr;gap:18px}
  .score-main{border-right:none;border-bottom:1px dashed rgba(24,50,120,.16);padding-right:0;padding-bottom:18px}
  .form-wrap,.insight-grid,.join-wrap,.contact-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:640px){
  .section{padding:52px 0}
  .hero{padding:38px 0 46px}
  .brand-text{font-size:16px}
  .hero-lead{font-size:15.5px}
  .grid-3,.grid-4,.grid-2,.process,.metrics,.feature-list,.join-points,.contact-list,.form-row{grid-template-columns:1fr}
  .form-card,.join-wrap,.card{padding:20px}
  .score-num{font-size:46px}
  .float-support{right:14px;bottom:16px}
  .back-top{right:14px;bottom:78px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}