/* ========================================
   源予知行 官网 v2 — AI 结果资产运营系统
   设计系统: 深蓝灰 + 霓虹青 + 玻璃拟态 + 真实感动画
   见素-UI / 砺行-研发 联合产出
   ======================================== */

:root {
  --bg: #ffffff;
  --bg-2: #f8fafc;
  --bg-3: #e2e8f0;
  --ink: #0f172a;
  --ink-2: #475569;
  --ink-3: #6b7280;
  --neon: #2563eb;
  --neon-dim: rgba(37,99,235,0.12);
  --neon-glow: rgba(37,99,235,0.06);
  --jade: #1e40af;
  --mint: #0f766e;
  --mint-dim: rgba(15,118,110,0.12);
  --gold: #b45309;
  --red: #ef4444;
  --yellow: #eab308;
  --glass-bg: rgba(0,0,0,0.015);
  --glass-border: rgba(0,0,0,0.06);
  --glass-hover: rgba(0,0,0,0.03);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 18px 50px rgba(15,23,42,0.08);
  --focus-ring: 0 0 0 3px rgba(37,99,235,0.16);
  --radius: 14px;
  --radius-sm: 8px;
  --font: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono: "SF Mono","Cascadia Code","Menlo","Consolas",monospace;
  --transition: 0.28s ease;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scrollbar-color:var(--bg-3) var(--bg)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;line-height:1.6}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:none;box-shadow:var(--focus-ring)}
h1,h2,h3,h4{margin:0;line-height:1.25}
p{margin:0;color:var(--ink-2)}
img{max-width:100%;height:auto}
section{padding:90px clamp(18px,5vw,72px)}
section[id]{scroll-margin-top:76px}
.section{background:var(--bg)}
.section-alt{background:var(--bg-2)}

/* ---- Nav ---- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:center;height:60px;padding:0 clamp(18px,5vw,72px);background:rgba(255,255,255,0.78);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid transparent;box-shadow:none;transition:all 0.35s ease}
.nav.nav-scrolled{background:rgba(255,255,255,0.95);border-bottom-color:var(--glass-border);box-shadow:var(--shadow-sm)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;width:100%;max-width:1100px}
.nav-brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:17px;color:var(--ink)}
.nav-mark{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:7px;background:linear-gradient(135deg,var(--neon),var(--jade));color:#fff;font-weight:700;font-size:15px;box-shadow:0 0 16px var(--neon-dim)}
.nav-links{display:flex;align-items:center;gap:24px;font-size:13px;color:var(--ink-2)}
.nav-links a{padding:6px 0;border-bottom:1px solid transparent;transition:color var(--transition),border-color var(--transition)}
.nav-links a:hover{color:var(--neon);border-bottom-color:var(--neon-dim)}
.lang-switch{padding:4px 10px;border:1px solid var(--glass-border);border-radius:5px;background:transparent;color:var(--ink-2);font-family:var(--mono);font-size:11px;cursor:pointer;transition:all var(--transition)}
.lang-switch:hover{border-color:var(--neon);color:var(--neon)}

/* ---- Hero ---- */
.hero{position:relative;display:flex;align-items:center;justify-content:center;min-height:86svh;padding-top:76px;padding-bottom:64px;overflow:hidden;text-align:center}
.ai-field{position:absolute;inset:0;width:100%;height:100%;opacity:0.5}
.hero-overlay{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 30%,transparent 20%,rgba(255,255,255,0.82) 65%,rgba(255,255,255,0.96) 92%)}
.hero-content{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:15px;max-width:900px;padding:0 clamp(20px,4vw,40px)}
.hero-badge{display:inline-flex;align-items:center;gap:7px;padding:4px 13px;border:1px solid var(--neon-dim);border-radius:999px;font-size:11px;color:var(--neon);background:rgba(255,255,255,0.82);font-family:var(--mono);letter-spacing:0;box-shadow:var(--shadow-sm)}
.pulse-dot{width:6px;height:6px;border-radius:50%;background:var(--neon);animation:pulse 2.5s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 6px var(--neon)}50%{opacity:0.35;box-shadow:0 0 14px var(--neon)}}
.hero-title{display:flex;flex-direction:column;align-items:center;gap:4px;width:min(100%,760px);font-weight:700;letter-spacing:0;line-height:1.08;word-break:keep-all;overflow-wrap:normal}
.title-context{display:block;font-size:20px;font-weight:500;color:var(--ink-2);line-height:1.2}
.title-core{position:relative;display:inline-block;font-size:48px;font-weight:760;line-height:1.08;letter-spacing:0;white-space:nowrap}
.title-core::after{content:"";position:absolute;left:.06em;right:.06em;bottom:2px;height:9px;border-radius:2px;background:var(--neon-glow);z-index:-1}
.title-core-secondary{font-size:42px;color:var(--jade)}
.text-neon{color:var(--neon);text-shadow:none}
.hero-sub{font-size:15px;color:var(--ink-2);max-width:620px;line-height:1.72;text-wrap:balance}
.hero-metrics{display:flex;gap:0;margin-top:2px;padding:10px 18px;border:1px solid #e2e8f0;border-radius:999px;background:rgba(255,255,255,0.78);box-shadow:var(--shadow-sm)}
.metric{min-width:92px;padding:0 18px;text-align:center}
.metric+.metric{border-left:1px solid #e2e8f0}
.metric strong{display:block;font-family:var(--mono);font-size:26px;color:var(--neon)}
.metric span{font-size:11px;color:var(--ink-3)}
.metric-note{max-width:620px;margin:-2px auto 2px;color:var(--ink-3);font-size:11px;line-height:1.6;text-align:center}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:4px}
.btn-primary{display:inline-flex;align-items:center;gap:6px;padding:12px 26px;background:var(--neon);color:#fff;font-weight:600;font-size:14px;border-radius:var(--radius-sm);transition:all var(--transition);border:none;cursor:pointer;box-shadow:0 2px 8px var(--neon-dim)}
.btn-primary:hover{box-shadow:0 4px 20px var(--neon-dim);transform:translateY(-2px)}
.btn-secondary{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border:1px solid #cbd5e1;border-radius:var(--radius-sm);font-size:14px;color:var(--ink);background:transparent;transition:all var(--transition)}
.btn-secondary:hover{border-color:var(--neon);background:var(--neon-glow)}
.hero-platforms{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:8px}
.platform-badge{display:inline-flex;align-items:center;padding:6px 16px;border-radius:20px;font-size:12px;font-family:var(--mono);border:1px solid #cbd5e1;color:var(--ink-2);background:transparent}
.platform-badge.active{border-color:var(--neon);color:var(--neon);background:var(--neon-glow)}
.platform-badge:nth-child(2).active{border-color:var(--mint);color:var(--mint);background:var(--mint-dim)}
.scroll-hint{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:2}
.scroll-line{display:block;width:1px;height:36px;background:linear-gradient(to bottom,var(--neon),transparent);animation:scrollPulse 2.4s ease-in-out infinite}
@keyframes scrollPulse{0%,100%{opacity:.3;transform:scaleY(1)}50%{opacity:1;transform:scaleY(1.25)}}
html[lang="en"] .hero-content{gap:16px}
html[lang="en"] .hero{min-height:82svh;padding-top:66px;padding-bottom:42px}
html[lang="en"] .hero-title{width:min(100%,820px);line-height:1.08}
html[lang="en"] .title-context{font-size:17px}
html[lang="en"] .title-core{font-size:36px;white-space:normal;max-width:760px}
html[lang="en"] .title-core-secondary{font-size:32px}
html[lang="en"] .hero-sub{max-width:660px;font-size:15px}

/* Hero bottom divider */
.hero-divider{position:absolute;bottom:-1px;left:0;right:0;height:44px;z-index:3;pointer-events:none}
.hero-divider::before{content:"";position:absolute;inset:0;background:var(--bg-2);clip-path:ellipse(60% 100% at 50% 0%)}
.hero-divider::after{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(to right,transparent,var(--neon-dim),transparent)}
.section-first{border-top:none;padding-top:48px}

/* ---- Sections ---- */
section{padding:88px clamp(18px,5vw,72px)}
.section{background:var(--bg)}
.section-alt{background:var(--bg-2)}
.section-head{max-width:680px;margin:0 auto 48px;text-align:center}
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:0.13em;text-transform:uppercase;color:var(--neon);margin-bottom:12px}
.section-head h2{font-size:clamp(24px,3.5vw,34px);font-weight:600;margin-bottom:14px;text-wrap:balance}
.section-desc{font-size:14px;line-height:1.7}

/* ---- Positioning Grid ---- */
.positioning-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;max-width:1080px;margin:0 auto}
.pos-card{position:relative;overflow:hidden;padding:28px;border-radius:var(--radius);background:#fff;border:1px solid #e2e8f0;box-shadow:var(--shadow-sm);transition:all var(--transition)}
.pos-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--neon)}
.pos-card:nth-child(2)::before{background:var(--mint)}
.pos-card:nth-child(3)::before{background:var(--gold)}
.pos-card:nth-child(4)::before{background:var(--jade)}
.pos-card:hover{border-color:#cbd5e1;box-shadow:var(--shadow-md);transform:translateY(-3px)}
.pos-num{font-family:var(--mono);font-size:11px;color:var(--neon);opacity:0.7}
.pos-card h4{font-size:16px;font-weight:600;margin:10px 0 6px}
.pos-card p{font-size:13px;line-height:1.65;color:var(--ink-2)}

/* ---- Role Detail Cards ---- */
.role-detail-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:1100px;margin:0 auto}
.role-detail-card{position:relative;display:flex;flex-direction:column;padding:28px;border-radius:var(--radius);background:#fff;border:1px solid #e2e8f0;box-shadow:var(--shadow-sm);transition:all var(--transition);overflow:hidden}
.role-detail-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--neon)}
.role-detail-card:nth-child(2)::before{background:var(--mint)}
.role-detail-card:nth-child(3)::before{background:var(--gold)}
.role-detail-card:hover{border-color:#cbd5e1;box-shadow:var(--shadow-md)}
.role-card-header{display:flex;align-items:flex-start;gap:16px;margin-bottom:16px}
.role-avatar{width:52px;height:52px;border-radius:14px;overflow:hidden;flex-shrink:0;border:2px solid #fff;box-shadow:0 2px 8px rgba(0,0,0,0.08)}
.role-avatar img{width:100%;height:100%;object-fit:cover;display:block}
.role-card-header h3{font-size:18px}
.role-tagline{font-size:12px!important;color:var(--ink-3)!important;margin-top:2px}
.role-card-body{display:flex;flex:1;flex-direction:column;gap:16px}
.role-card-body>p{font-size:14px;line-height:1.7;margin-bottom:0}
.role-outputs{margin-bottom:0}
.role-outputs h4{font-size:12px;color:var(--ink-3);text-transform:uppercase;letter-spacing:0.06em;margin-bottom:8px}
.output-tags{display:flex;gap:6px;flex-wrap:wrap}
.output-tags span{padding:4px 10px;border-radius:4px;font-size:11px;font-family:var(--mono);background:var(--neon-glow);color:var(--neon);border:1px solid var(--neon-dim)}
.role-workflow{margin-top:auto;padding-top:14px;border-top:1px solid #edf2f7}
.role-workflow p{font-size:13px;line-height:1.6;color:var(--ink-2)}

/* ---- Case Cards ---- */
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;max-width:960px;margin:0 auto}
.case-card{display:flex;flex-direction:column;padding:28px;border-radius:var(--radius);background:#fff;border:1px solid #e2e8f0;box-shadow:var(--shadow-sm);transition:all var(--transition)}
.case-card:hover{border-color:#cbd5e1;box-shadow:var(--shadow-md);transform:translateY(-3px)}
.case-header{display:flex;gap:8px;margin-bottom:12px}
.case-platform{padding:3px 10px;border-radius:4px;font-size:11px;font-family:var(--mono);background:var(--neon-glow);color:var(--neon);border:1px solid var(--neon-dim)}
.case-duration{padding:3px 10px;border-radius:4px;font-size:11px;color:var(--ink-3);border:1px solid #e2e8f0}
.case-card h4{font-size:16px;font-weight:600;margin-bottom:14px}
.case-label{display:inline-block;font-size:10px;color:var(--ink-3);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:6px;font-family:var(--mono)}
.case-problem,.case-result{margin-bottom:14px}
.case-result{margin-top:auto}
.case-problem p,.case-result p{font-size:13px;line-height:1.6}
.case-metrics{display:flex;gap:16px;flex-wrap:wrap;margin:8px 0}
.case-metrics span{font-size:13px;color:var(--ink-2)}
.case-metrics strong{color:var(--neon);font-family:var(--mono);font-size:16px}
.case-source{font-size:11px!important;color:var(--ink-3)!important;line-height:1.55!important;margin-top:4px}
.case-quote{font-style:italic;color:var(--ink-2)!important;font-size:13px!important;padding:10px 14px;border-left:3px solid var(--neon);margin-top:10px;line-height:1.6;background:var(--neon-glow);border-radius:0 8px 8px 0}

/* ---- Proof Strip ---- */
.proof-strip{display:flex;align-items:center;justify-content:center;gap:clamp(20px,4vw,52px);flex-wrap:wrap;max-width:780px;margin:0 auto 10px}
.proof-item{text-align:center}
.proof-num{display:block;font-family:var(--mono);font-size:clamp(34px,5vw,50px);font-weight:600;color:var(--neon);letter-spacing:-0.03em}
.proof-label{font-size:12px;color:var(--ink-3);margin-top:4px;display:block}
.proof-divider{width:1px;height:36px;background:#e2e8f0}
.proof-note{max-width:720px;margin:0 auto 48px;color:var(--ink-3);font-size:11px;line-height:1.6;text-align:center}

/* ---- CLI Block ---- */
.cli-block{max-width:520px;margin:0 auto;border-radius:var(--radius);overflow:hidden;border:1px solid #e2e8f0;background:#0f172a;box-shadow:var(--shadow-md)}
.cli-header{display:flex;align-items:center;gap:7px;padding:10px 16px;background:rgba(255,255,255,0.04);border-bottom:1px solid rgba(255,255,255,0.06)}
.cli-dot{width:9px;height:9px;border-radius:50%}
.cli-dot.red{background:var(--red)}.cli-dot.yellow{background:var(--yellow)}.cli-dot.green{background:#4ade80}
.cli-title{font-family:var(--mono);font-size:11px;color:#94a3b8;margin-left:6px}
.cli-body{padding:14px 18px}
.cli-line{font-family:var(--mono);font-size:12px;line-height:1.9;color:#cbd5e1}
.cli-prompt{color:#4ade80;margin-right:6px}
.cli-indent{padding-left:14px}
.cli-str{color:#fbbf24}
.cli-key{color:#94a3b8}
.cli-val{color:#e2e8f0}
.cli-ok{color:#4ade80}
.cli-cursor{color:#4ade80;animation:blink 1s step-end infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}

/* ---- Demo Chat ---- */
.demo-container{max-width:720px;margin:0 auto;border-radius:var(--radius);overflow:hidden;border:1px solid #e2e8f0;background:#fff;box-shadow:var(--shadow-lg)}
.demo-tabs{display:flex;border-bottom:1px solid #e2e8f0}
.demo-tab{flex:1;padding:13px 10px;border:none;background:transparent;color:var(--ink-3);font-size:13px;font-family:var(--font);cursor:pointer;transition:all var(--transition)}
.demo-tab.active{color:var(--neon);border-bottom:2px solid var(--neon);background:var(--neon-glow)}
.demo-tab:hover:not(.active){color:var(--ink-2)}
.demo-chat{padding:22px;display:flex;flex-direction:column;gap:18px;min-height:280px;max-height:400px;overflow-y:auto;background:var(--bg-2)}
.chat-msg{display:flex;flex-direction:column;gap:5px;max-width:88%;animation:msgIn .35s ease}
@keyframes msgIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.chat-msg.user{align-self:flex-end;align-items:flex-end}
.chat-msg.bot{align-self:flex-start}
.msg-sender{font-size:10px;font-family:var(--mono);color:var(--ink-3);text-transform:uppercase;letter-spacing:0.07em}
.chat-msg.user .msg-sender{color:var(--gold)}
.chat-msg.user p{background:#eff6ff;color:var(--ink);padding:10px 14px;border-radius:14px 14px 4px 14px;font-size:13px;line-height:1.55;overflow-wrap:anywhere;word-break:break-word}
.msg-card{background:var(--bg-2);border:1px solid #e2e8f0;border-radius:10px;padding:15px;display:flex;flex-direction:column;gap:6px}
.msg-card-title{font-weight:600;font-size:13px!important;color:var(--ink)!important;background:none!important;padding:0!important}
.msg-card p{font-size:12px;line-height:1.6;color:var(--ink-2);background:none!important;padding:0!important;overflow-wrap:anywhere;word-break:break-word}
.msg-card-foot{font-size:11px!important;color:var(--neon)!important;margin-top:2px;padding-top:7px;border-top:1px solid #e2e8f0}
/* typing dots */
.typing-indicator{display:flex;gap:4px;padding:8px 0}
.typing-dot{width:6px;height:6px;border-radius:50%;background:var(--neon);animation:typingBounce 1.2s ease-in-out infinite}
.typing-dot:nth-child(2){animation-delay:.15s}
.typing-dot:nth-child(3){animation-delay:.3s}
@keyframes typingBounce{0%,60%,100%{opacity:.25;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}
.demo-input{display:flex;align-items:center;gap:8px;padding:10px 16px;border-top:1px solid #e2e8f0;background:#fff}
.demo-at{font-family:var(--mono);font-size:11px;color:var(--neon);white-space:nowrap}
.demo-field{flex:1;min-width:0;padding:8px 12px;border-radius:6px;border:1px solid #e2e8f0;background:var(--bg-2);color:var(--ink);font-size:13px;font-family:var(--font);outline:none;transition:border-color var(--transition)}
.demo-field:focus{border-color:var(--neon)}
.demo-field::placeholder{color:var(--ink-3)}
.demo-send{width:34px;height:34px;border:none;border-radius:6px;background:var(--neon);color:#fff;font-size:16px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition)}
.demo-send:hover{box-shadow:0 0 12px var(--neon-dim)}

/* ---- Trust ---- */
.trust-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;max-width:860px;margin:0 auto 32px}
.trust-item{padding:28px;border-radius:var(--radius);background:#fff;border:1px solid #e2e8f0;box-shadow:var(--shadow-sm);transition:all var(--transition);position:relative;overflow:hidden}
.trust-item::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(to right,var(--neon),var(--neon-dim));opacity:0;transition:opacity var(--transition)}
.trust-item:hover::before{opacity:1}
.trust-item:hover{border-color:#cbd5e1;box-shadow:var(--shadow-md);transform:translateY(-2px)}
.trust-item h4{font-size:15px;font-weight:600;margin-bottom:10px;color:var(--ink)}
.trust-item p{font-size:13px;line-height:1.7;color:var(--ink-2)}
.trust-links{text-align:center;font-size:13px;color:var(--ink-3)}
.trust-link{transition:color var(--transition)}
.trust-link:hover{color:var(--neon)}
.trust-sep{margin:0 8px;color:#e2e8f0}

/* ---- Contact ---- */
.contact-card{max-width:460px;margin:0 auto;text-align:center}
.contact-card h2{margin-bottom:14px}
.contact-card>p{margin-bottom:28px;font-size:14px;line-height:1.7}
.contact-info{display:flex;flex-direction:column;gap:0;text-align:left;max-width:400px;margin:0 auto;border:1px solid #e2e8f0;border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow-sm)}
.contact-row{display:flex;justify-content:space-between;gap:12px;padding:14px 20px;font-size:13px;background:#fff;transition:background var(--transition)}
.contact-row+.contact-row{border-top:1px solid #f1f5f9}
.contact-row:hover{background:var(--bg-2)}
.contact-row span{color:var(--ink-3);flex-shrink:0}
.contact-row strong{color:var(--ink);text-align:right}

/* ---- Footer ---- */
.footer{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:16px;padding:26px clamp(18px,5vw,72px);border-top:1px solid #e2e8f0;font-size:12px;color:var(--ink-3);background:#fff}
.footer-inner{display:flex;align-items:center;justify-content:space-between;width:100%;max-width:1100px;flex-wrap:wrap;gap:16px}
.footer-brand{display:flex;flex-direction:column;gap:3px}
.footer-brand span:first-child{color:var(--ink)}
.footer-compliance{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.beian-item{display:inline-flex;align-items:center;gap:4px}
.beian-item a{color:var(--ink-3);transition:color var(--transition)}
.beian-item a:hover{color:var(--ink-2)}


/* ---- Hamburger ---- */
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;border:none;background:transparent;cursor:pointer;z-index:51}
.nav-toggle-bar{display:block;width:22px;height:2px;background:var(--ink);border-radius:1px;transition:all .25s ease}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---- Responsive ---- */
@media(max-width:768px){
  .nav-toggle{display:flex}
  .nav-links{display:none;flex-direction:column;align-items:center;position:absolute;top:60px;left:0;right:0;z-index:49;background:#fff;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);padding:16px clamp(18px,5vw,72px);gap:10px;border-bottom:1px solid var(--glass-border);box-shadow:var(--shadow-md)}
  .nav-links.open{display:flex}
  section{padding:72px clamp(18px,5vw,72px)}
  .hero{min-height:86svh;padding-top:74px;padding-bottom:54px}
  .hero-content{gap:13px;padding:0 18px}
  .hero-badge{font-size:10px;padding:4px 11px}
  .hero-title{gap:3px;line-height:1.08}
  .title-context{font-size:15px}
  .title-core{font-size:31px;white-space:nowrap}
  .title-core::after{bottom:1px;height:7px}
  .title-core-secondary{font-size:28px}
  .hero-sub{font-size:13px;max-width:340px}
  .hero-metrics{width:min(100%,330px);justify-content:space-between;padding:9px 6px;border-radius:18px}
  .metric{flex:1;min-width:0;padding:0 8px}
  .metric strong{font-size:22px}
  .metric span{font-size:10px}
  .hero-actions{width:100%}
  .btn-primary,.btn-secondary{min-width:130px;justify-content:center}
  .hero-platforms{gap:6px}
  .platform-badge{font-size:11px;padding:5px 12px}
  .section-first{padding-top:44px}
  .positioning-grid{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .role-detail-grid{grid-template-columns:1fr;max-width:620px}
  .role-detail-card{padding:22px}
  .demo-chat{min-height:220px;padding:16px}
  .proof-strip{gap:24px}
  .proof-divider{display:none}
  .trust-grid{grid-template-columns:1fr}
  .footer{flex-direction:column;text-align:center}
  .footer-compliance{justify-content:center}
}

@media(min-width:769px) and (max-width:1020px){
  .role-detail-grid{grid-template-columns:1fr;max-width:760px}
}

@media(max-width:380px){
  .title-core{font-size:29px}
  .title-core-secondary{font-size:26px}
  html[lang="en"] .title-core{font-size:24px}
  html[lang="en"] .title-core-secondary{font-size:22px}
  .btn-primary,.btn-secondary{min-width:118px;padding-inline:18px}
  .hero-metrics{width:100%}
}

@media(prefers-reduced-motion:reduce){
  .pulse-dot,.scroll-line,.cli-cursor,.typing-dot{animation:none}
  .pos-card:hover,.case-card:hover,.role-detail-card:hover{transform:none}
  .ai-field{display:none}
  .chat-msg{animation:none}
}