:root{
  --ink:#14132a;
  --ink2:#3a3856;
  --muted:#6a6885;
  --line:rgba(20,19,42,.10);
  --line2:rgba(20,19,42,.06);
  --bg:#fbfaff;
  --card:#ffffff;
  --accent:#6b46ff;
  --accent-d:#4b2fbe;
  --accent2:#0e93b8;
  --accent3:#cc2f92;
  --holo:linear-gradient(90deg,#6b46ff,#0e93b8,#cc2f92,#e08a1e);
  --shadow-sm:0 1px 2px rgba(20,19,42,.04),0 8px 20px rgba(20,19,42,.05);
  --shadow-md:0 16px 36px rgba(84,63,224,.14);
  --radius:18px;
}
*{box-sizing:border-box}
html{background:var(--bg);scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--ink);
  line-height:1.7;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
.aurora{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden;background:var(--bg)}
.aurora::before{content:"";position:absolute;left:-12%;top:-22%;width:72%;height:72%;background:radial-gradient(circle at 32% 32%,rgba(107,70,255,.20),transparent 62%);animation:floatA 20s ease-in-out infinite}
.aurora::after{content:"";position:absolute;right:-16%;top:-14%;width:78%;height:78%;background:radial-gradient(circle at 70% 38%,rgba(14,147,184,.17),transparent 62%),radial-gradient(circle at 38% 82%,rgba(204,47,146,.13),transparent 60%);animation:floatB 24s ease-in-out infinite}
@keyframes floatA{0%,100%{transform:translate(0,0)}50%{transform:translate(4%,3%)}}
@keyframes floatB{0%,100%{transform:translate(0,0)}50%{transform:translate(-3%,4%)}}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
a{color:var(--accent-d)}
img{max-width:100%}
h1,h2,h3{color:var(--ink);letter-spacing:-.01em}
p{margin:0}

/* Header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(251,250,255,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line2);transition:box-shadow .25s ease}
.site-header.scrolled{box-shadow:0 8px 24px rgba(20,19,42,.07)}
.nav-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex-shrink:0}
.ai-page-logo{width:38px;height:38px;object-fit:contain;display:block;max-width:100%}
.brand-name{display:block;font-weight:800;font-size:17px;line-height:1.25}
.brand-sub{display:block;font-size:10.5px;letter-spacing:.16em;color:var(--muted);line-height:1.4}
.nav-panel{display:flex;align-items:center;margin-left:auto}
.nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0}
.nav-links a{display:inline-block;padding:9px 11px;font-size:14px;color:var(--ink2);text-decoration:none;border-radius:10px;transition:color .2s ease,background .2s ease;white-space:nowrap}
.nav-links a:hover{color:var(--accent-d);background:rgba(107,70,255,.08)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{display:none;width:40px;height:40px;border-radius:11px;border:1px solid var(--line);background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--ink2);transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:999px;font-size:15px;font-weight:700;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;line-height:1.3;white-space:nowrap}
.btn-primary{background:linear-gradient(120deg,#5b3df0,#0f7fa8 55%,#b82a86);color:#fff;box-shadow:0 10px 24px rgba(91,61,240,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(91,61,240,.36)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-sm)}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(107,70,255,.38);color:var(--accent-d);box-shadow:var(--shadow-md)}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:13.5px}

/* Hero */
.hero{padding:54px 0 8px}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.pill{display:inline-flex;align-items:center;gap:9px;padding:6px 15px;border-radius:999px;font-size:12.5px;font-weight:700;color:#4b2fbe;background:linear-gradient(90deg,rgba(107,70,255,.13),rgba(14,147,184,.12));border:1px solid rgba(107,70,255,.22)}
.pill::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(107,70,255,.15)}
h1{font-size:clamp(29px,4.4vw,46px);line-height:1.24;font-weight:800;margin:18px 0 0}
.hl{color:#4b2fbe;background:linear-gradient(180deg,transparent 64%,rgba(107,70,255,.18) 64%);padding:0 2px;border-radius:3px}
.hero-lead{margin:18px 0 0;font-size:15.5px;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 0;padding:0}
.hero-points li{font-size:12.5px;color:var(--ink2);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;box-shadow:var(--shadow-sm)}
.hero-copy{animation:rise .7s ease both}
.hero-visual{animation:rise .7s .12s ease both}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.model-board{position:relative;overflow:hidden;background:linear-gradient(160deg,rgba(255,255,255,.96),rgba(245,243,255,.94));border:1px solid rgba(107,70,255,.18);border-radius:24px;padding:22px;box-shadow:0 24px 60px rgba(84,63,224,.14)}
.model-board::before{content:"";position:absolute;right:-30%;top:-40%;width:80%;height:120%;background:radial-gradient(circle at 60% 40%,rgba(14,147,184,.20),transparent 62%);pointer-events:none}
.board-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;position:relative}
.board-title{font-size:13px;font-weight:800;color:var(--ink2);letter-spacing:.04em}
.board-dot{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;color:var(--muted)}
.board-dot i{width:7px;height:7px;border-radius:50%;background:#16b981;box-shadow:0 0 0 4px rgba(22,185,129,.16);animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.model-tags{display:flex;flex-wrap:wrap;gap:8px;position:relative}
.model-tags span{font-size:12.5px;font-weight:600;padding:6px 11px;border-radius:9px;background:#fff;border:1px solid var(--line);color:var(--ink2);transition:transform .25s ease,border-color .25s ease,color .25s ease}
.model-tags span:hover{transform:translateY(-2px);border-color:rgba(107,70,255,.4);color:var(--accent-d)}
.model-tags span:nth-child(3n+1){background:linear-gradient(135deg,#fff,rgba(107,70,255,.09))}
.model-tags span:nth-child(3n+2){background:linear-gradient(135deg,#fff,rgba(14,147,184,.09))}
.model-tags span:nth-child(3n){background:linear-gradient(135deg,#fff,rgba(204,47,146,.08))}
.board-foot{position:relative;margin-top:18px;padding-top:14px;border-top:1px dashed var(--line);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.board-foot p{font-size:12.5px;color:var(--muted)}
.sched-bar{flex:1;min-width:120px;height:6px;border-radius:6px;background:rgba(107,70,255,.12);overflow:hidden;position:relative}
.sched-bar::after{content:"";position:absolute;top:0;left:-40%;width:40%;height:100%;border-radius:6px;background:var(--holo);animation:slide 3.2s ease-in-out infinite}
@keyframes slide{0%{left:-40%}60%{left:100%}100%{left:100%}}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.stat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow-sm);transition:transform .28s ease,box-shadow .28s ease}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.stat strong{display:block;font-size:26px;font-weight:800;color:#4b2fbe;letter-spacing:-.02em;line-height:1.3}
.stat span{display:block;font-size:12.8px;color:var(--muted);margin-top:2px}

/* Sections */
.section{padding:54px 0}
.section-head{max-width:760px;margin-bottom:30px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:800;letter-spacing:.1em;color:var(--accent-d);margin:0 0 12px}
.eyebrow::before{content:"";width:24px;height:3px;border-radius:3px;background:var(--holo)}
h2{font-size:clamp(22px,3vw,32px);line-height:1.34;font-weight:800;margin:0}
.section-sub{margin:12px 0 0;color:var(--muted);font-size:15px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;align-items:start}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;align-items:stretch}

/* Cards */
.s-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:9px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.s-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(107,70,255,.28)}
.s-card .tag-line{width:34px;height:3px;border-radius:3px;background:var(--holo)}
.s-card h3{font-size:16.5px;font-weight:700;margin:0}
.s-card p{font-size:13.8px;color:var(--muted);line-height:1.72}
.s-card.sm{padding:18px}
.s-card.sm h3{font-size:15px}

/* About */
.about-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:24px;align-items:start}
.about-text p{font-size:14.8px;color:var(--ink2);margin:0 0 14px;line-height:1.85}
.about-text p:last-child{margin-bottom:0}
.about-card{background:linear-gradient(160deg,#fff,rgba(245,243,255,.9));border:1px solid rgba(107,70,255,.16);border-radius:18px;padding:22px;box-shadow:var(--shadow-sm)}
.about-card h3{font-size:15.5px;margin:0 0 14px}
.about-list{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.about-list li{position:relative;padding-left:20px;font-size:13.8px;color:var(--ink2)}
.about-list li::before{content:"";position:absolute;left:0;top:8px;width:9px;height:9px;border-radius:3px;background:var(--holo)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:8px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px 18px;box-shadow:var(--shadow-sm);transition:transform .28s ease,box-shadow .28s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,rgba(107,70,255,.16),rgba(14,147,184,.16));color:#4b2fbe;font-weight:800;font-size:13px;margin-bottom:10px}
.step h3{font-size:14.6px;margin:0 0 6px}
.step p{font-size:13px;color:var(--muted);line-height:1.68}

/* Cases */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case-item:first-child{grid-column:span 2}
.case-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;height:100%;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(107,70,255,.26)}
.case-media{aspect-ratio:4/3;background:#f4f2fb;display:flex;align-items:center;justify-content:center;overflow:hidden;border-bottom:1px solid var(--line2)}
.case-media img{width:100%;height:100%;object-fit:contain;display:block}
.case-body{padding:16px 18px 18px}
.case-body h3{font-size:15px;margin:0 0 5px}
.case-body p{font-size:13px;color:var(--muted);line-height:1.65}

/* Reviews */
.review-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:12px;transition:transform .28s ease,box-shadow .28s ease}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.review-card p{font-size:13.8px;color:var(--ink2);line-height:1.8}
.review-meta{display:flex;align-items:center;gap:10px;padding-top:12px;border-top:1px dashed var(--line2);margin-top:auto}
.avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#6b46ff,#0e93b8);color:#fff;font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.review-name{font-size:13.5px;font-weight:700;color:var(--ink);line-height:1.4}
.review-role{font-size:12px;color:var(--muted);line-height:1.4}

/* Review / compare */
.compare-top{display:grid;grid-template-columns:270px 1fr;gap:20px;align-items:start}
.score-card{background:linear-gradient(165deg,#fff,rgba(245,243,255,.95));border:1px solid rgba(107,70,255,.2);border-radius:18px;padding:24px;text-align:center;box-shadow:var(--shadow-md)}
.score-label{font-size:12.5px;font-weight:800;letter-spacing:.1em;color:var(--muted);margin:0}
.score-num{font-size:52px;font-weight:800;line-height:1.1;color:#4b2fbe;margin:6px 0 2px;letter-spacing:-.03em}
.score-num span{font-size:16px;font-weight:700;color:var(--muted);margin-left:2px}
.stars{font-size:19px;letter-spacing:3px;color:#e08a1e;line-height:1.4}
.score-desc{font-size:13px;color:var(--ink2);margin:8px 0 0;font-weight:600}
.score-note{font-size:12px;color:var(--muted);margin:10px 0 0;line-height:1.6}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow-sm);-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;min-width:640px;font-size:13.8px}
thead th{background:rgba(107,70,255,.07);color:#3a2a8f;font-weight:800;font-size:13px;text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);white-space:nowrap}
tbody td{padding:13px 16px;border-bottom:1px solid var(--line2);vertical-align:top;color:var(--ink2);line-height:1.65}
tbody td:first-child{font-weight:700;color:var(--ink);white-space:nowrap}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{background:rgba(107,70,255,.035)}
.hl-cell{color:#4b2fbe;font-weight:600}

/* Token */
.token-note{margin:18px 0 0;font-size:13px;color:var(--muted);background:rgba(107,70,255,.06);border:1px dashed rgba(107,70,255,.28);border-radius:12px;padding:12px 16px}

/* Form */
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow-sm);max-width:860px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px;font-size:13px;font-weight:700;color:var(--ink2)}
.field.full{grid-column:1/-1;margin-top:16px}
.field input,.field select,.field textarea{width:100%;font-family:inherit;font-size:14px;font-weight:400;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:11px;padding:11px 14px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;line-height:1.5}
.field textarea{resize:vertical;min-height:110px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(107,70,255,.6);box-shadow:0 0 0 4px rgba(107,70,255,.12)}
.form-actions{margin-top:20px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.form-tip{font-size:12.5px;color:var(--muted)}

/* FAQ */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:2px 18px;box-shadow:var(--shadow-sm);transition:border-color .25s ease,box-shadow .25s ease}
.faq-item[open]{border-color:rgba(107,70,255,.32);box-shadow:var(--shadow-md)}
.faq-item summary{list-style:none;cursor:pointer;position:relative;padding:15px 30px 15px 0;font-size:15px;font-weight:700;color:var(--ink);outline:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";position:absolute;right:4px;top:50%;width:8px;height:8px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:translateY(-68%) rotate(45deg);transition:transform .25s ease}
.faq-item[open] summary::after{transform:translateY(-22%) rotate(-135deg)}
.faq-item p{font-size:13.8px;color:var(--muted);line-height:1.8;padding:0 0 16px;margin:0}

/* Wiki */
.wiki-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:var(--shadow-sm);border-left:3px solid transparent;border-image:none;transition:transform .28s ease,box-shadow .28s ease}
.wiki-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.wiki-card h3{font-size:14.6px;margin:0 0 6px;color:#4b2fbe}
.wiki-card p{font-size:13.2px;color:var(--muted);line-height:1.72}

/* Articles */
.article-list{display:grid;gap:11px}
.article-item{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fff;border:1px solid var(--line);border-radius:13px;padding:15px 18px;text-decoration:none;color:var(--ink);box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.article-item:hover{transform:translateX(4px);box-shadow:var(--shadow-md);border-color:rgba(107,70,255,.3)}
.article-item span{font-size:14.2px;font-weight:600;line-height:1.5}
.article-item::after{content:"→";color:var(--accent);font-weight:800;flex-shrink:0}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:20px;align-items:start}
.contact-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.contact-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow-sm)}
.contact-item span{display:block;font-size:12px;color:var(--muted);letter-spacing:.04em;margin-bottom:4px}
.contact-item strong{display:block;font-size:14.5px;color:var(--ink);font-weight:700;word-break:break-all}
.qr-card{background:linear-gradient(165deg,#fff,rgba(245,243,255,.94));border:1px solid rgba(107,70,255,.18);border-radius:18px;padding:22px;text-align:center;box-shadow:var(--shadow-sm)}
.qr-card img{width:100%;max-width:180px;height:auto;display:block;margin:0 auto 12px;border-radius:12px;border:1px solid var(--line2);background:#fff}
.qr-card p{font-size:13px;color:var(--ink2);font-weight:600;margin:0}
.qr-card small{display:block;font-size:12px;color:var(--muted);margin-top:6px}
.partner-card{margin-top:20px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:linear-gradient(120deg,rgba(107,70,255,.10),rgba(14,147,184,.09) 55%,rgba(204,47,146,.09));border:1px solid rgba(107,70,255,.2);border-radius:18px;padding:24px}
.partner-card h3{font-size:17px;margin:0 0 6px}
.partner-card p{font-size:13.6px;color:var(--ink2);max-width:640px;line-height:1.75;margin:0}

/* Footer */
.site-footer{margin-top:56px;background:#f3f1fb;border-top:1px solid var(--line);color:var(--ink2);position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--holo)}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;padding:38px 0 26px;align-items:start}
.footer-brand{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.footer-brand .brand-line{display:flex;align-items:center;gap:10px}
.footer-brand strong{font-size:16px;color:var(--ink);font-weight:800}
.footer-brand p{font-size:13.2px;color:#4a4866;line-height:1.75;max-width:420px}
.footer-brand a{font-size:13.2px;color:#4b2fbe;text-decoration:none;font-weight:700}
.footer-brand a:hover{text-decoration:underline}
.footer-title{font-size:13px;font-weight:800;color:var(--ink);margin:0 0 12px;letter-spacing:.04em}
.footer-links ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 14px}
.footer-links a{font-size:13px;color:#4a4866;text-decoration:none;transition:color .2s ease}
.footer-links a:hover{color:#4b2fbe}
.footer-bottom{border-top:1px solid rgba(20,19,42,.08);padding:16px 0 20px;font-size:12.5px;color:#4a4866;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* Floating */
.floating{position:fixed;right:18px;bottom:22px;z-index:70;display:flex;flex-direction:column;gap:10px}
.float-btn{width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink2);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;text-decoration:none;box-shadow:0 10px 24px rgba(20,19,42,.14);cursor:pointer;transition:transform .22s ease,color .22s ease,border-color .22s ease}
.float-btn:hover{transform:translateY(-3px);color:var(--accent-d);border-color:rgba(107,70,255,.4)}
.float-btn.top{opacity:0;visibility:hidden}
.float-btn.top.show{opacity:1;visibility:visible}

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

@media (max-width:1024px){
  .nav-panel{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 22px 44px rgba(20,19,42,.12);padding:6px 18px 16px;display:none}
  .nav-panel.open{display:block}
  .nav-links{flex-direction:column;align-items:stretch;gap:0}
  .nav-links a{display:block;padding:12px 4px;border-bottom:1px dashed var(--line2);border-radius:0;font-size:14.5px}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero{padding:40px 0 8px}
  .steps{grid-template-columns:repeat(3,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .compare-top{grid-template-columns:1fr}
  .score-card{text-align:left}
  .score-num{font-size:44px}
}
@media (max-width:900px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .case-item:first-child{grid-column:span 2}
  .contact-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr;gap:24px}
}
@media (max-width:640px){
  .section{padding:42px 0}
  .grid-2,.grid-3,.grid-4,.steps,.case-grid,.contact-list,.form-grid{grid-template-columns:1fr}
  .case-item:first-child{grid-column:span 1}
  .hero{padding:32px 0 4px}
  .stats{margin-top:32px;gap:12px}
  .stat strong{font-size:22px}
  .form-card{padding:20px}
  .partner-card{padding:20px}
  .footer-bottom{flex-direction:column;gap:6px}
  .nav-actions .btn-sm{padding:8px 14px;font-size:13px}
  .brand-sub{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}