/* ============================================================
   AI+ 智慧校园官网 · 共享样式（设计系统）
   广东学心教育科技有限公司
   ============================================================ */
:root{
  --bg:#050814; --bg2:#0A0E1A; --bg3:#0d1324;
  --surface:rgba(255,255,255,.035);
  --surface2:rgba(255,255,255,.06);
  --border:rgba(255,255,255,.09);
  --border-glow:rgba(30,111,255,.4);
  --blue:#1E6FFF; --cyan:#00E5FF; --purple:#7B61FF; --green:#00FFC2;
  --text:#E8ECF5; --dim:#8A97B0; --dim2:#5b6884;
  --grad:linear-gradient(120deg,#1E6FFF 0%,#7B61FF 100%);
  --grad-cyan:linear-gradient(120deg,#00E5FF 0%,#1E6FFF 100%);
  --grad-text:linear-gradient(120deg,#5c9bff 0%,#8b7bff 55%,#00E5FF 100%);
  --maxw:1200px;
  --font:"Microsoft YaHei","PingFang SC","HarmonyOS Sans SC","Segoe UI",system-ui,sans-serif;
  --mono:"Rajdhani","DIN","Bahnschrift","Consolas",var(--font);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
canvas#bgfx{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:2}
section{position:relative;z-index:2}
.glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;z-index:1;pointer-events:none}

/* ---------- Header ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:100;transition:.35s;padding:18px 0}
header.scrolled{background:rgba(7,10,20,.72);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);padding:12px 0}
.nav{display:flex;align-items:center;justify-content:space-between;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px;letter-spacing:.5px}
.logo .mark{width:34px;height:34px;border-radius:9px;background:var(--grad);display:grid;place-items:center;font-size:15px;box-shadow:0 0 20px rgba(30,111,255,.55);position:relative;color:#fff}
.logo .mark::after{content:"";position:absolute;inset:0;border-radius:9px;border:1px solid rgba(255,255,255,.3)}
.logo b{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.menu{display:flex;gap:34px;list-style:none;font-size:15px}
.menu a{color:var(--dim);transition:.25s;position:relative;padding:6px 0}
.menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--grad);transition:.3s;border-radius:2px}
.menu a:hover,.menu a.active{color:#fff}
.menu a:hover::after,.menu a.active::after{width:100%}
.btn{display:inline-flex;align-items:center;gap:8px;cursor:pointer;border:none;font-family:inherit;font-size:15px;font-weight:600;border-radius:10px;transition:.28s;white-space:nowrap}
.btn-primary{padding:12px 24px;background:var(--grad);color:#fff;box-shadow:0 6px 22px rgba(30,111,255,.45)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(123,97,255,.6)}
.btn-ghost{padding:12px 24px;background:var(--surface2);color:#fff;border:1px solid var(--border)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:0 0 20px rgba(0,229,255,.25)}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:26px;cursor:pointer}

/* ---------- Hero (home) ---------- */
.hero{min-height:100vh;display:flex;align-items:center;padding:130px 0 80px;position:relative;overflow:hidden}
.hero .glow.g1{top:-120px;right:-60px;width:520px;height:520px;background:radial-gradient(circle,#1E6FFF,transparent 70%)}
.hero .glow.g2{bottom:-120px;left:-80px;width:460px;height:460px;background:radial-gradient(circle,#7B61FF,transparent 70%);opacity:.4}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;width:100%}
.eyebrow{display:inline-flex;align-items:center;gap:9px;padding:7px 15px;border-radius:100px;background:var(--surface2);border:1px solid var(--border);font-size:13.5px;color:#cdd6ea;margin-bottom:26px}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
.hero h1{font-size:clamp(34px,5vw,60px);line-height:1.14;font-weight:800;letter-spacing:-.5px;margin-bottom:22px}
.hero h1 .g{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{font-size:18px;color:var(--dim);max-width:560px;margin-bottom:26px}
.trust{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.trust span{font-size:12.5px;color:#b7c2da;padding:6px 13px;border-radius:8px;background:var(--surface);border:1px solid var(--border)}
.trust span::before{content:"✓ ";color:var(--green);font-weight:700}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:44px}
.stats{display:flex;flex-wrap:wrap;gap:30px 40px}
.stat .num{font-family:var(--mono);font-size:38px;font-weight:800;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.stat .lbl{font-size:13px;color:var(--dim);margin-top:6px}
.hero-visual{position:relative;height:440px;perspective:1200px}
.hv-stack{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;gap:14px;transform:rotateY(-16deg) rotateX(8deg);transform-style:preserve-3d}
.hv-layer{background:linear-gradient(120deg,rgba(30,111,255,.14),rgba(123,97,255,.10));border:1px solid var(--border);border-radius:14px;padding:16px 18px;backdrop-filter:blur(6px);box-shadow:0 10px 40px rgba(0,0,0,.4);animation:floatY 5s ease-in-out infinite;position:relative;overflow:hidden}
.hv-layer::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad)}
.hv-layer:nth-child(2){animation-delay:.6s}.hv-layer:nth-child(3){animation-delay:1.2s}.hv-layer:nth-child(4){animation-delay:1.8s}
.hv-layer .t{font-size:14px;font-weight:700;color:#fff;margin-bottom:5px}
.hv-layer .d{font-size:11.5px;color:var(--dim)}
.hv-layer .ic{position:absolute;right:16px;top:14px;font-size:18px;opacity:.5}
@keyframes floatY{0%,100%{transform:translateZ(0)}50%{transform:translateZ(26px)}}

/* ---------- Page banner (inner pages) ---------- */
.pbanner{padding:160px 0 70px;position:relative;overflow:hidden}
.pbanner .glow{top:-100px;right:-40px;width:480px;height:480px;background:radial-gradient(circle,#1E6FFF,transparent 70%);opacity:.4}
.crumb{font-size:13px;color:var(--dim2);margin-bottom:18px}
.crumb a:hover{color:var(--cyan)}
.crumb span{color:var(--cyan)}
.pbanner h1{font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.18;margin-bottom:16px;max-width:820px}
.pbanner h1 .g{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.pbanner .lead{font-size:17.5px;color:var(--dim);max-width:680px}
.pbanner .tag{display:inline-block;font-family:var(--mono);letter-spacing:3px;font-size:13px;font-weight:700;color:var(--cyan);text-transform:uppercase;margin-bottom:16px}

/* ---------- Section shared ---------- */
.sec{padding:90px 0}
.sec.alt{background:linear-gradient(180deg,transparent,rgba(13,19,36,.5),transparent)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 56px}
.sec-head.left{text-align:left;margin-left:0}
.tag{display:inline-block;font-family:var(--mono);letter-spacing:3px;font-size:13px;font-weight:700;color:var(--cyan);text-transform:uppercase;margin-bottom:14px}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;line-height:1.25;margin-bottom:16px}
.sec-head h2 .g{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-head p{color:var(--dim);font-size:16.5px}
.reveal{opacity:0;transform:translateY(34px);transition:.8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Anchor sub-nav (sticky) ---------- */
.subnav{position:sticky;top:64px;z-index:50;background:rgba(7,10,20,.82);backdrop-filter:blur(12px);border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin-bottom:20px}
.subnav .wrap{display:flex;gap:8px;overflow-x:auto;padding-top:12px;padding-bottom:12px}
.subnav a{white-space:nowrap;font-size:14px;color:var(--dim);padding:8px 16px;border-radius:100px;border:1px solid transparent;transition:.25s}
.subnav a:hover{color:#fff;background:var(--surface2)}
.subnav a.active{color:#fff;background:var(--grad);border-color:transparent}

/* ---------- Pain / generic cards ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pain-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:34px 28px;transition:.35s;position:relative;overflow:hidden}
.pain-card:hover{transform:translateY(-6px);border-color:var(--border-glow);box-shadow:0 20px 50px rgba(30,111,255,.16)}
.pain-card .pic{font-size:34px;margin-bottom:18px}
.pain-card h3{font-size:20px;margin-bottom:10px}
.pain-card p{color:var(--dim);font-size:14.5px}
.pain-turn{text-align:center;margin-top:46px;font-size:clamp(20px,2.6vw,30px);font-weight:700}
.pain-turn .g{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Architecture ---------- */
.arch{max-width:940px;margin:0 auto;display:flex;flex-direction:column}
.arch-layer{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px 28px;margin:11px 0;transition:.4s;display:grid;grid-template-columns:210px 1fr;gap:20px;align-items:center}
.arch-layer:hover{transform:scale(1.02);border-color:var(--border-glow);background:linear-gradient(100deg,rgba(30,111,255,.12),rgba(123,97,255,.08));box-shadow:0 16px 46px rgba(30,111,255,.22)}
.arch-layer .lname{font-size:20px;font-weight:800;display:flex;align-items:center;gap:12px}
.arch-layer .lname .no{font-family:var(--mono);font-size:13px;color:#fff;background:var(--grad);width:30px;height:30px;border-radius:8px;display:grid;place-items:center;font-weight:800;flex:none}
.arch-layer .ldesc{font-size:12.5px;color:var(--dim);margin-top:6px;padding-left:42px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:12.5px;padding:6px 12px;border-radius:8px;background:var(--surface2);border:1px solid var(--border);color:#c7d0e6;transition:.25s}
.arch-layer:hover .chip{border-color:rgba(0,229,255,.35)}
.chip.hi{background:var(--grad);color:#fff;border:none;box-shadow:0 0 14px rgba(123,97,255,.5)}
.arch-flow{height:26px;display:flex;justify-content:center;align-items:center;gap:6px}
.arch-flow i{width:5px;height:5px;border-radius:50%;background:var(--cyan);opacity:.25;animation:flowdot 1.6s infinite}
.arch-flow i:nth-child(2){animation-delay:.2s}.arch-flow i:nth-child(3){animation-delay:.4s}
@keyframes flowdot{0%,100%{opacity:.2;transform:translateY(0)}50%{opacity:1;transform:translateY(4px);box-shadow:0 0 8px var(--cyan)}}
.arch-note{text-align:center;color:var(--dim2);font-size:13px;margin-top:26px}

/* ---------- AI ---------- */
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:stretch}
.ai-card{background:linear-gradient(150deg,rgba(123,97,255,.12),rgba(0,229,255,.05));border:1px solid var(--border);border-radius:20px;padding:34px;position:relative;overflow:hidden}
.ai-card::before{content:"";position:absolute;top:-40px;right:-40px;width:160px;height:160px;background:radial-gradient(circle,rgba(123,97,255,.5),transparent 70%);filter:blur(20px)}
.ai-card .k{font-family:var(--mono);font-size:12px;letter-spacing:2px;color:var(--purple);font-weight:700}
.ai-card h3{font-size:23px;margin:10px 0 14px;position:relative}
.ai-card p{color:var(--dim);font-size:14.5px;margin-bottom:22px}
.ai-badges{display:flex;flex-wrap:wrap;gap:10px}
.ai-badges span{font-size:12px;padding:6px 12px;border-radius:100px;background:var(--surface2);border:1px solid var(--border)}
.ai-badges span::before{content:"● ";color:var(--green)}
.chat{background:rgba(5,8,20,.6);border:1px solid var(--border);border-radius:14px;padding:16px;margin-top:8px;min-height:210px}
.chat .row{display:flex;margin:10px 0;gap:10px}
.chat .row.me{justify-content:flex-end}
.bubble{max-width:82%;padding:11px 15px;border-radius:14px;font-size:13.5px;line-height:1.6}
.bubble.me{background:var(--grad);color:#fff;border-bottom-right-radius:4px}
.bubble.ai{background:var(--surface2);border:1px solid var(--border);border-bottom-left-radius:4px}
.bubble .who{font-size:11px;color:var(--cyan);margin-bottom:4px;font-weight:700}
.typing i{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--dim);margin:0 1px;animation:blink 1.2s infinite}
.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,100%{opacity:.2}50%{opacity:1}}
.demo-lbl{font-size:11px;color:var(--dim2);text-align:right;margin-top:8px}

/* ---------- Features grid ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:30px 26px;transition:.35s;cursor:pointer;position:relative;overflow:hidden;display:block}
.feat-card::after{content:"";position:absolute;inset:0;border-radius:16px;padding:1px;background:var(--grad);opacity:0;transition:.35s;-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude}
.feat-card:hover{transform:translateY(-8px);box-shadow:0 22px 55px rgba(30,111,255,.2)}
.feat-card:hover::after{opacity:1}
.feat-ic{width:54px;height:54px;border-radius:13px;background:var(--surface2);border:1px solid var(--border);display:grid;place-items:center;margin-bottom:20px;transition:.35s}
.feat-card:hover .feat-ic{background:var(--grad);box-shadow:0 0 22px rgba(123,97,255,.5)}
.feat-ic svg{width:26px;height:26px;stroke:var(--cyan);fill:none;stroke-width:1.6;transition:.35s}
.feat-card:hover .feat-ic svg{stroke:#fff}
.feat-card h3{font-size:19px;margin-bottom:9px}
.feat-card p{color:var(--dim);font-size:14px;margin-bottom:16px}
.feat-meta{font-family:var(--mono);font-size:12.5px;color:var(--green);letter-spacing:1px;font-weight:700}
.feat-more{font-size:13px;color:var(--dim2);margin-top:10px;transition:.3s}
.feat-card:hover .feat-more{color:var(--cyan)}

/* ---------- Feature module (detail) ---------- */
.module{padding:70px 0;border-bottom:1px solid var(--border)}
.module:last-child{border-bottom:none}
.mod-head{display:flex;align-items:center;gap:18px;margin-bottom:12px}
.mod-ic{width:60px;height:60px;border-radius:15px;background:var(--grad);display:grid;place-items:center;flex:none;box-shadow:0 0 26px rgba(123,97,255,.45)}
.mod-ic svg{width:30px;height:30px;stroke:#fff;fill:none;stroke-width:1.6}
.mod-head .mno{font-family:var(--mono);color:var(--dim2);font-size:14px;font-weight:700}
.mod-head h2{font-size:clamp(22px,2.8vw,30px);font-weight:800}
.mod-lead{color:var(--dim);font-size:16px;margin-bottom:30px;max-width:820px}
.mod-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mod-cols.two{grid-template-columns:repeat(2,1fr)}
.info-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:24px;transition:.3s}
.info-card:hover{border-color:var(--border-glow);transform:translateY(-4px)}
.info-card h4{font-size:16.5px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.info-card h4 .d{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan);flex:none}
.info-card ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.info-card li{font-size:13.5px;color:var(--dim);padding-left:20px;position:relative}
.info-card li::before{content:"›";position:absolute;left:4px;color:var(--cyan);font-weight:700}
.func-tags{display:flex;flex-wrap:wrap;gap:8px}
.func-tags span{font-size:12.5px;padding:6px 11px;border-radius:7px;background:var(--surface2);border:1px solid var(--border);color:#c7d0e6}
.pill{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:13px;font-weight:700;color:var(--green);padding:6px 14px;border-radius:100px;background:rgba(0,255,194,.08);border:1px solid rgba(0,255,194,.25);margin-bottom:18px}

/* ---------- Lifecycle ---------- */
.life{position:relative;padding:20px 0}
.life-track{display:flex;justify-content:space-between;position:relative;flex-wrap:wrap;gap:24px 0}
.life-line{position:absolute;top:29px;left:3%;right:3%;height:2px;background:linear-gradient(90deg,var(--blue),var(--purple),var(--cyan))}
.life-node{width:12.5%;min-width:110px;text-align:center;position:relative;z-index:2}
.life-dot{width:58px;height:58px;border-radius:50%;margin:0 auto 14px;background:var(--bg2);border:2px solid var(--border);display:grid;place-items:center;font-family:var(--mono);font-weight:800;font-size:18px;color:var(--cyan);transition:.4s}
.life-node.in .life-dot{border-color:var(--cyan);box-shadow:0 0 22px rgba(0,229,255,.5);background:linear-gradient(140deg,rgba(30,111,255,.25),rgba(123,97,255,.2))}
.life-node h4{font-size:15px;margin-bottom:5px}
.life-node p{font-size:12px;color:var(--dim);padding:0 4px}

/* ---------- Data dashboard ---------- */
.dash{background:linear-gradient(150deg,rgba(13,19,36,.9),rgba(5,8,20,.9));border:1px solid var(--border);border-radius:22px;padding:34px;position:relative;overflow:hidden}
.dash::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 0%,rgba(30,111,255,.14),transparent 45%)}
.dash-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:26px;flex-wrap:wrap;gap:12px;position:relative}
.dash-top .dt{font-size:19px;font-weight:800;display:flex;align-items:center;gap:12px}
.dash-top .live{font-family:var(--mono);font-size:12px;color:var(--green);display:flex;align-items:center;gap:7px}
.dash-top .live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);animation:pulse 1.6s infinite}
.dash-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:20px;position:relative}
.dash-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:22px}
.dash-card .ct{font-size:13px;color:var(--dim);margin-bottom:16px}
.kpis{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.kpi .v{font-family:var(--mono);font-size:26px;font-weight:800;color:#fff}
.kpi .v small{font-size:14px;color:var(--cyan)}
.kpi .l{font-size:12px;color:var(--dim);margin-top:2px}
.ring-wrap{display:flex;align-items:center;gap:20px}
.ring{width:120px;height:120px;flex:none}
.ring circle{fill:none;stroke-width:12;transform:rotate(-90deg);transform-origin:50% 50%}
.ring .bg{stroke:rgba(255,255,255,.08)}
.ring .fg{stroke:url(#rg);stroke-linecap:round;stroke-dasharray:326;stroke-dashoffset:326;transition:stroke-dashoffset 1.6s ease}
.ring-txt{font-family:var(--mono);font-size:15px;font-weight:800;fill:#fff}
.ring-info .rv{font-family:var(--mono);font-size:22px;font-weight:800;color:var(--green)}
.ring-info .rl{font-size:12.5px;color:var(--dim)}
.bars{display:flex;align-items:flex-end;gap:12px;height:130px;margin-top:8px}
.bar{flex:1;display:flex;flex-direction:column;align-items:center;gap:8px;justify-content:flex-end;height:100%}
.bar .col{width:100%;border-radius:6px 6px 0 0;background:var(--grad);height:0;transition:height 1.3s cubic-bezier(.2,.8,.2,1);position:relative;min-height:3px}
.bar .col span{position:absolute;top:-20px;left:0;right:0;text-align:center;font-family:var(--mono);font-size:11px;color:var(--cyan)}
.bar .bl{font-size:11px;color:var(--dim)}
.dash-note{font-size:11.5px;color:var(--dim2);text-align:right;margin-top:18px;position:relative}

/* ---------- Standard / recognition ---------- */
.std-logos{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:44px}
.std-logos .sl{padding:14px 22px;border-radius:12px;background:var(--surface);border:1px solid var(--border);font-size:14px;color:#c7d0e6;display:flex;align-items:center;gap:10px}
.std-logos .sl b{color:#fff}
.std-logos .sl .em{font-size:20px}
.std-table{overflow-x:auto;border-radius:16px;border:1px solid var(--border)}
table{width:100%;border-collapse:collapse;min-width:640px;background:var(--surface)}
th,td{padding:15px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--border)}
th{background:rgba(30,111,255,.12);font-weight:700;color:#fff;font-size:14px}
tr:last-child td{border-bottom:none}
td .ok{color:var(--green);font-weight:700}
td .ok::before{content:"✓ "}
.std-quote{text-align:center;margin-top:26px;color:var(--dim);font-size:15px}
.std-quote b{color:var(--green)}

/* ---------- Timeline ---------- */
.tl{position:relative;max-width:820px;margin:0 auto;padding-left:40px}
.tl::before{content:"";position:absolute;left:11px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--blue),var(--purple))}
.tl-item{position:relative;margin-bottom:34px;padding:22px 26px;background:var(--surface);border:1px solid var(--border);border-radius:14px;transition:.35s}
.tl-item:hover{border-color:var(--border-glow);transform:translateX(6px)}
.tl-item::before{content:"";position:absolute;left:-34px;top:26px;width:14px;height:14px;border-radius:50%;background:var(--grad);box-shadow:0 0 0 4px var(--bg),0 0 14px var(--blue)}
.tl-item .yr{font-family:var(--mono);font-size:22px;font-weight:800;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.tl-item h4{font-size:17px;margin:2px 0 6px}
.tl-item p{color:var(--dim);font-size:14.5px;margin-top:6px}
.case-badge{display:inline-flex;align-items:center;gap:10px;padding:10px 20px;border-radius:100px;background:var(--surface2);border:1px solid var(--border);font-size:14px;margin:0 auto 40px;justify-content:center}
.case-badge b{color:var(--cyan)}

/* ---------- Value / generic 3col ---------- */
.val-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.val-card{padding:28px 24px;border-radius:16px;background:var(--surface);border:1px solid var(--border);transition:.35s}
.val-card:hover{transform:translateY(-6px);border-color:var(--border-glow);box-shadow:0 18px 44px rgba(123,97,255,.16)}
.val-card .vi{font-size:26px;margin-bottom:14px}
.val-card h4{font-size:17px;margin-bottom:8px}
.val-card p{font-size:13.5px;color:var(--dim)}

/* ---------- Stats strip ---------- */
.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.strip .s .n{font-family:var(--mono);font-size:40px;font-weight:800;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.strip .s .t{font-size:14px;color:var(--dim);margin-top:8px}

/* ---------- Form ---------- */
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:34px;align-items:start}
.form-card{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:34px}
.form-card h3{font-size:22px;margin-bottom:6px}
.form-card .fh{color:var(--dim);font-size:14px;margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;color:#c7d0e6;margin-bottom:8px}
.field label .req{color:var(--purple)}
.field input,.field textarea,.field select{width:100%;background:rgba(5,8,20,.6);border:1px solid var(--border);border-radius:10px;padding:12px 14px;color:var(--text);font-family:inherit;font-size:14.5px;transition:.25s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(30,111,255,.18)}
.field textarea{resize:vertical;min-height:90px}
.choices{display:flex;flex-wrap:wrap;gap:10px}
.choices label{display:inline-flex;align-items:center;gap:7px;font-size:13px;padding:8px 14px;border-radius:100px;background:var(--surface2);border:1px solid var(--border);cursor:pointer;transition:.25s;margin:0}
.choices label:hover{border-color:var(--border-glow)}
.choices input{width:auto}
.choices input:checked+span{color:var(--cyan)}
.form-ok{display:none;border:1px solid;border-radius:12px;padding:16px;font-size:14.5px;margin-top:16px;line-height:1.6}
.form-ok.ok{background:rgba(0,255,194,.08);border-color:rgba(0,255,194,.3);color:var(--green)}
.form-ok.err{background:rgba(255,92,92,.08);border-color:rgba(255,92,92,.35);color:#ff9a9a}
.contact-side{display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:26px}
.side-card h4{font-size:16px;margin-bottom:16px}
.side-card .big{font-family:var(--mono);font-size:26px;color:var(--green);font-weight:800}
.side-card p{color:var(--dim);font-size:13.5px;margin-top:6px}
.qr{width:120px;height:120px;border-radius:12px;background:repeating-linear-gradient(45deg,rgba(255,255,255,.06) 0 6px,transparent 6px 12px);border:1px dashed var(--border);display:grid;place-items:center;color:var(--dim2);font-size:12px;text-align:center}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq details{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:4px 20px;transition:.25s}
.faq details[open]{border-color:var(--border-glow)}
.faq summary{cursor:pointer;padding:16px 0;font-size:15.5px;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--cyan);font-size:22px;transition:.25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{color:var(--dim);font-size:14px;padding:0 0 18px}

/* ---------- CTA ---------- */
.cta{margin:40px auto;max-width:1100px;padding:60px 40px;border-radius:26px;background:linear-gradient(120deg,rgba(30,111,255,.9),rgba(123,97,255,.85));text-align:center;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.2),transparent 40%),radial-gradient(circle at 80% 80%,rgba(0,229,255,.3),transparent 45%)}
.cta h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;margin-bottom:14px;position:relative}
.cta p{font-size:16.5px;opacity:.92;margin-bottom:30px;position:relative}
.cta .hero-cta{justify-content:center;margin:0;position:relative}
.cta .btn-primary{background:#fff;color:var(--blue)}
.cta .btn-ghost{background:rgba(255,255,255,.15);border-color:rgba(255,255,255,.4);color:#fff}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--border);padding:60px 0 30px;margin-top:60px;background:var(--bg2)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:40px;margin-bottom:40px}
.foot-grid h5{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:1px}
.foot-grid p,.foot-grid a{color:var(--dim);font-size:13.5px;display:block;margin-bottom:9px;transition:.25s}
.foot-grid a:hover{color:var(--cyan)}
.foot-contact .big{font-family:var(--mono);font-size:22px;color:var(--green);font-weight:800;margin-bottom:6px}
.foot-bottom{text-align:center;color:var(--dim2);font-size:12.5px;border-top:1px solid var(--border);padding-top:24px}

/* ---------- Floating contact ---------- */
.float{position:fixed;right:22px;bottom:22px;z-index:90;display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.float a{display:flex;align-items:center;gap:9px;padding:13px 18px;border-radius:100px;font-size:14px;font-weight:600;box-shadow:0 8px 26px rgba(0,0,0,.4);transition:.3s}
.float .fdemo{background:var(--grad);color:#fff}
.float .fcall{background:var(--surface2);border:1px solid var(--border);color:#fff;backdrop-filter:blur(10px)}
.float a:hover{transform:translateY(-3px)}
.float .fcall:hover{border-color:var(--green);color:var(--green)}

/* ---------- Responsive ---------- */
@media(max-width:960px){
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{height:340px;margin-top:10px;order:-1}
  .hv-stack{transform:rotateY(-8deg) rotateX(4deg)}
  .nav .btn-primary{display:none}
  .nav-toggle{display:block}
  .menu{position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:rgba(9,13,26,.97);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);padding:10px 24px;display:none}
  .menu.open{display:flex}
  .menu a{padding:14px 0;border-bottom:1px solid var(--border)}
  .pain-grid,.feat-grid,.val-grid,.ai-grid,.dash-grid,.mod-cols,.mod-cols.two,.contact-grid,.strip{grid-template-columns:1fr}
  .strip{grid-template-columns:repeat(2,1fr);gap:30px 20px}
  .arch-layer{grid-template-columns:1fr}
  .arch-layer .ldesc{padding-left:0}
  .foot-grid{grid-template-columns:1fr}
  .life-line{display:none}
  .life-node{width:46%;min-width:0}
  .stats{gap:20px 30px}
  .stat .num{font-size:30px}
  .sec{padding:70px 0}
  .subnav{top:56px}
}
@media(max-width:560px){
  .life-node{width:100%}
  .cta{padding:44px 22px}
  .float a span{display:none}
  .float a{padding:14px}
  .strip{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}