:root{--bg: #ffffff;--bg-soft: #f6f7f9;--bg-dark: #0f172a;--fg: #1f2937;--fg-soft: #5b6776;--accent: #f6821f;--accent-dark: #d96a08;--line: #e5e8ee;--radius: 14px;--maxw: 1140px;--shadow: 0 10px 30px rgba(15, 23, 42, .08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Microsoft YaHei,sans-serif;color:var(--fg);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{max-width:var(--maxw);margin:0 auto;padding:0 1.25rem}.nav{position:sticky;top:0;z-index:50;background:#ffffffdb;backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{display:flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.1rem;letter-spacing:.3px}.brand .logo{width:34px;height:34px;border-radius:9px;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800;font-size:1rem}.brand .sub{color:var(--accent);font-weight:700}.nav-links{display:flex;gap:1.6rem;align-items:center}.nav-links a{color:var(--fg-soft);font-weight:500;font-size:.95rem;transition:color .2s}.nav-links a:hover{color:var(--accent)}.btn{display:inline-flex;align-items:center;gap:.4rem;background:var(--accent);color:#fff;font-weight:600;padding:.6rem 1.1rem;border-radius:999px;border:0;cursor:pointer;font-size:.95rem;transition:background .2s,transform .1s}.btn:hover{background:var(--accent-dark)}.btn:active{transform:translateY(1px)}.btn-ghost{background:transparent;color:var(--accent);border:1px solid var(--accent)}.btn-ghost:hover{background:#f6821f1a}section{padding:5rem 0}.section-head{text-align:center;max-width:640px;margin:0 auto 3rem}.section-head .eyebrow{color:var(--accent);font-weight:700;letter-spacing:2px;font-size:.8rem;text-transform:uppercase}.section-head h2{font-size:clamp(1.6rem,3vw,2.3rem);margin:.6rem 0 .5rem}.section-head p{color:var(--fg-soft)}.hero{background:radial-gradient(1000px 500px at 80% -10%,rgba(246,130,31,.14),transparent 60%),var(--bg-soft)}.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center}.hero h1{font-size:clamp(2rem,4.5vw,3.2rem);line-height:1.15;margin:0 0 1.2rem}.hero h1 .hl{color:var(--accent)}.hero p{font-size:1.1rem;color:var(--fg-soft);margin:0 0 2rem}.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap}.hero-visual{background:linear-gradient(135deg,#0f172a,#1e293b);border-radius:20px;padding:2rem;color:#fff;box-shadow:var(--shadow)}.hero-visual .tag{display:inline-block;background:#f6821f33;color:var(--accent);padding:.25rem .7rem;border-radius:999px;font-size:.8rem;margin-bottom:1rem}.hero-visual ul{list-style:none;padding:0;margin:0}.hero-visual li{padding:.55rem 0;border-bottom:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between}.hero-visual li span:last-child{color:var(--accent);font-weight:700}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.4rem}.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;transition:transform .2s,box-shadow .2s,border-color .2s}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--accent)}.card .ico{width:48px;height:48px;border-radius:12px;background:#f6821f1f;color:var(--accent);display:grid;place-items:center;font-size:1.5rem;margin-bottom:1rem}.card h3{margin:.2rem 0 .5rem;font-size:1.15rem}.card p{color:var(--fg-soft);font-size:.95rem;margin:0}.stats{background:var(--bg-dark);color:#fff}.stats .grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.stat{text-align:center}.stat .num{font-size:2.4rem;font-weight:800;color:var(--accent)}.stat .lbl{color:#cbd5e1;font-size:.9rem}.feature{display:flex;gap:1rem;align-items:flex-start}.feature .dot{flex:0 0 auto;width:38px;height:38px;border-radius:10px;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800}.contact{background:var(--bg-soft)}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem}.contact-info li{list-style:none;padding:.5rem 0;color:var(--fg-soft)}.contact-info strong{color:var(--fg)}.contact-form{display:grid;gap:.9rem}.contact-form input,.contact-form textarea{width:100%;padding:.8rem 1rem;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fff}.contact-form textarea{min-height:110px;resize:vertical}footer{background:var(--bg-dark);color:#cbd5e1;padding:2.5rem 0;font-size:.9rem}footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem}footer a{color:#cbd5e1}footer .brand{color:#fff}.chat-fab{position:fixed;right:24px;bottom:24px;z-index:100;width:60px;height:60px;border-radius:50%;border:0;cursor:pointer;background:var(--accent);color:#fff;font-size:1.5rem;box-shadow:0 8px 24px #f6821f73;display:grid;place-items:center;transition:transform .15s}.chat-fab:hover{transform:scale(1.06)}.chat-panel{position:fixed;right:24px;bottom:96px;z-index:100;width:360px;max-width:calc(100vw - 32px);height:520px;max-height:calc(100vh - 120px);background:#fff;border-radius:18px;box-shadow:0 20px 60px #0f172a40;display:flex;flex-direction:column;overflow:hidden;transform:translateY(16px) scale(.98);opacity:0;pointer-events:none;transition:.2s}.chat-panel.open{transform:none;opacity:1;pointer-events:auto}.chat-head{background:var(--bg-dark);color:#fff;padding:.9rem 1.1rem;display:flex;align-items:center;justify-content:space-between}.chat-head .ttl{font-weight:700;font-size:.98rem}.chat-head .st{font-size:.72rem;color:#94a3b8}.chat-close{background:transparent;border:0;color:#fff;font-size:1.3rem;cursor:pointer;line-height:1}.chat-msgs{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.7rem;background:var(--bg-soft)}.msg{max-width:82%;padding:.6rem .85rem;border-radius:14px;font-size:.92rem;line-height:1.5;white-space:pre-wrap;word-break:break-word}.msg.user{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:4px}.msg.bot{align-self:flex-start;background:#fff;border:1px solid var(--line);border-bottom-left-radius:4px}.msg.typing .msg-text:after{content:"▋";animation:blink 1s steps(2) infinite;color:var(--accent)}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.chat-input{display:flex;gap:.5rem;padding:.7rem;border-top:1px solid var(--line);background:#fff}.chat-input input{flex:1;border:1px solid var(--line);border-radius:999px;padding:.6rem 1rem;font:inherit}.chat-input button{flex:0 0 auto}@media(max-width:860px){.hero-inner,.contact-grid{grid-template-columns:1fr}.nav-links{display:none}}