/* Shared foundation and reusable site components. */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

html{scroll-behavior:smooth}

body{
            font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
            color:#1a1a2e;background:#fafafa;line-height:1.7;overflow-x:hidden
        }

a{text-decoration:none;color:inherit}

.container{max-width:1100px;margin:0 auto;padding:0 1.5rem}

:root{
            --primary:#f97316;--primary-dark:#ea580c;--primary-light:#fff7ed;
            --accent:#f59e0b;--glow:rgba(249,115,22,.35);
            --dark:#1a1a2e;--gray:#64748b;--light:#f8fafc;--border:#e2e8f0;
            --shadow:0 4px 24px rgba(0,0,0,.06);
            --shadow-lg:0 20px 50px rgba(249,115,22,.12);
            --radius:.9rem;
            --ease-out:cubic-bezier(.16,1,.3,1)
        }

.reveal{
            opacity:0;transform:translateY(36px);
            transition:opacity .8s var(--ease-out),transform .8s var(--ease-out);
            transition-delay:var(--reveal-delay,0s)
        }

.reveal.visible{opacity:1;transform:translateY(0)}

header{
            position:fixed;top:0;left:0;right:0;z-index:1000;
            background:rgba(255,255,255,.72);backdrop-filter:blur(18px) saturate(1.4);
            -webkit-backdrop-filter:blur(18px) saturate(1.4);
            border-bottom:1px solid rgba(226,232,240,.7);transition:all .35s var(--ease-out)
        }

header.scrolled{
            box-shadow:0 8px 32px rgba(15,23,42,.08);
            background:rgba(255,255,255,.9)
        }

.header-inner{
            max-width:1100px;margin:0 auto;padding:.85rem 1.5rem;
            display:flex;align-items:center;justify-content:space-between
        }

.logo{
            font-size:1.35rem;font-weight:800;
            background:linear-gradient(135deg,var(--primary),var(--primary-dark));
            -webkit-background-clip:text;-webkit-text-fill-color:transparent;
            background-clip:text;letter-spacing:-.5px
        }

.logo span{-webkit-text-fill-color:var(--dark)}

.contact-btn{
            background:linear-gradient(135deg,var(--primary),var(--primary-dark));
            color:#fff;border:none;padding:.55rem 1.3rem;border-radius:2rem;
            font-size:.85rem;font-weight:600;cursor:pointer;
            transition:transform .3s,box-shadow .3s;position:relative;overflow:hidden
        }

.contact-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px var(--glow)}

.nav-toggle{display:none;background:none;border:none;font-size:1.4rem;cursor:pointer;padding:.3rem}

.btn-primary{
            background:linear-gradient(135deg,var(--primary) 0%,#fb923c 50%,var(--primary-dark) 100%);
            background-size:200% 200%;
            color:#fff;box-shadow:0 6px 22px rgba(249,115,22,.35);
            position:relative;overflow:hidden;animation:btn-glow 4s ease infinite
        }

.btn-primary::after{
            content:'';position:absolute;inset:0;
            background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,.28) 50%,transparent 60%);
            transform:translateX(-120%);transition:transform .6s
        }

.btn-primary:hover{
            transform:translateY(-3px);box-shadow:0 12px 36px rgba(249,115,22,.48);
            background-position:100% 50%
        }

.btn-primary:hover::after{transform:translateX(120%)}

@keyframes btn-glow{
            0%,100%{box-shadow:0 6px 22px rgba(249,115,22,.32)}
            50%{box-shadow:0 8px 30px rgba(249,115,22,.5)}
        }

section{padding:5rem 0}

.section-label{
            display:inline-flex;align-items:center;gap:.45rem;
            font-size:.78rem;font-weight:700;
            text-transform:uppercase;letter-spacing:2.2px;color:var(--primary);
            margin-bottom:.55rem;
            padding:.28rem .7rem;border-radius:999px;
            background:rgba(249,115,22,.08);border:1px solid rgba(249,115,22,.12)
        }

.section-title{
            font-size:clamp(1.8rem,3.5vw,2.5rem);font-weight:800;
            margin-bottom:.8rem;letter-spacing:-.5px
        }

.section-subtitle{
            color:var(--gray);font-size:1rem;max-width:600px;margin-bottom:3rem
        }

.text-center{text-align:center}

.mx-auto{margin-left:auto;margin-right:auto}

.cta{
            background:
                radial-gradient(ellipse 55% 70% at 15% 40%,rgba(249,115,22,.28),transparent 55%),
                radial-gradient(ellipse 45% 60% at 85% 25%,rgba(168,85,247,.22),transparent 50%),
                radial-gradient(ellipse 40% 50% at 55% 90%,rgba(56,189,248,.12),transparent 50%),
                linear-gradient(135deg,#0b0a14 0%,#16122a 45%,#1f1538 100%);
            color:#fff;text-align:center;padding:5rem 1.5rem;
            position:relative;overflow:hidden
        }

.cta::before{
            content:'';position:absolute;inset:0;
            background:
                linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
            background-size:48px 48px;
            mask-image:radial-gradient(ellipse at center,black 20%,transparent 75%);
            pointer-events:none
        }

.cta::after{
            content:'';position:absolute;width:320px;height:320px;border-radius:50%;
            background:radial-gradient(circle,rgba(249,115,22,.3),transparent 70%);
            top:-90px;right:6%;filter:blur(14px);pointer-events:none;
            animation:cta-orb 9s ease-in-out infinite
        }

@keyframes cta-orb{
            0%,100%{transform:translate(0,0) scale(1)}
            50%{transform:translate(-36px,24px) scale(1.08)}
        }

.cta .container{position:relative;z-index:1}

.cta h2{font-size:clamp(1.8rem,3vw,2.3rem);font-weight:800;margin-bottom:.5rem}

.cta p{opacity:.8;margin-bottom:2rem;font-size:1rem}

footer{
            background:var(--dark);color:rgba(255,255,255,.7);
            padding:3rem 1.5rem 2rem;font-size:.88rem
        }

.footer-grid{
            max-width:1100px;margin:0 auto;
            display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
            gap:2rem;margin-bottom:2rem
        }

.footer-col h5{color:#fff;font-size:.95rem;font-weight:700;margin-bottom:1rem}

.footer-col p,.footer-col a{display:block;color:rgba(255,255,255,.6);margin-bottom:.4rem;transition:color .3s}

.footer-col a:hover{color:var(--primary)}

.footer-bottom{
            max-width:1100px;margin:0 auto;padding-top:1.5rem;
            border-top:1px solid rgba(255,255,255,.08);
            text-align:center;font-size:.82rem;color:rgba(255,255,255,.4)
        }

.modal{
            display:none;position:fixed;z-index:9999;
            left:0;top:0;width:100%;height:100%;
            background:rgba(15,16,36,.55);backdrop-filter:blur(8px);
            -webkit-backdrop-filter:blur(8px);
            align-items:center;justify-content:center;
            opacity:0;transition:opacity .3s
        }

.modal.show{display:flex;opacity:1}

.modal-panel{
            background:rgba(255,255,255,.97);border-radius:1.25rem;padding:2.2rem;
            width:92%;max-width:380px;text-align:center;
            transform:scale(.92) translateY(12px);
            transition:transform .4s var(--ease-out);
            box-shadow:0 24px 80px rgba(0,0,0,.25);
            border:1px solid rgba(255,255,255,.6)
        }

.modal.show .modal-panel{transform:scale(1) translateY(0)}

.modal-close{
            float:right;background:none;border:none;font-size:1.5rem;
            cursor:pointer;color:var(--gray);line-height:1;padding:.2rem
        }

.modal-icon{font-size:2.5rem;margin-bottom:.8rem}

.modal h3{font-size:1.2rem;font-weight:700;margin-bottom:.4rem}

.modal .modal-desc{color:var(--gray);font-size:.88rem;margin-bottom:1.5rem}

.modal-contact{margin-bottom:1.2rem}

.modal-contact-item{
            background:var(--light);border-radius:.6rem;padding:1rem;
            margin-bottom:.6rem;display:flex;align-items:center;gap:.8rem
        }

.modal-contact-label{
            font-size:.75rem;color:var(--gray);font-weight:600;
            background:var(--border);padding:.15rem .5rem;border-radius:.3rem;
            flex-shrink:0
        }

.modal-contact-value{font-weight:600;font-size:.95rem;color:var(--dark);word-break:break-all}

.modal-copy-btn{
            margin-left:auto;background:none;border:1px solid var(--border);
            border-radius:.4rem;padding:.3rem .5rem;font-size:.75rem;
            cursor:pointer;color:var(--gray);transition:all .2s;
            flex-shrink:0
        }

.modal-copy-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

.modal-actions{display:flex;flex-direction:column;gap:.6rem}

.modal-actions .btn{width:100%;justify-content:center}

.float-wx{
            position:fixed;bottom:1.5rem;right:1.5rem;z-index:999;
            width:56px;height:56px;border-radius:50%;
            background:linear-gradient(135deg,#25D366,#128C7E);
            color:#fff;display:flex;align-items:center;justify-content:center;
            font-size:1.6rem;box-shadow:0 4px 20px rgba(37,211,102,.35),0 0 30px rgba(37,211,102,.2);
            cursor:pointer;transition:all .3s;border:none
        }

.float-wx::before{
            content:'';position:absolute;inset:-4px;border-radius:50%;
            border:2px solid rgba(37,211,102,.45);
            animation:pulse-ring 2s ease-out infinite
        }

.float-wx::after{
            content:'';position:absolute;inset:-10px;border-radius:50%;
            border:1px solid rgba(37,211,102,.25);
            animation:pulse-ring 2s ease-out infinite .6s
        }

@keyframes pulse-ring{
            0%{transform:scale(.92);opacity:.8}
            100%{transform:scale(1.35);opacity:0}
        }

.float-wx:hover{transform:scale(1.1);box-shadow:0 8px 28px rgba(37,211,102,.45)}

.float-wx-tooltip{
            position:absolute;right:66px;top:50%;transform:translateY(-50%);
            background:#fff;color:var(--dark);font-size:.78rem;font-weight:600;
            padding:.4rem .8rem;border-radius:.4rem;white-space:nowrap;
            box-shadow:0 2px 12px rgba(0,0,0,.1);display:none
        }

.float-wx:hover .float-wx-tooltip{display:block}

.back-top{
            position:fixed;bottom:1.5rem;left:1.5rem;z-index:999;
            width:44px;height:44px;border-radius:50%;
            background:#fff;color:var(--dark);border:1px solid var(--border);
            display:flex;align-items:center;justify-content:center;
            font-size:1.2rem;cursor:pointer;opacity:0;pointer-events:none;
            transition:all .3s;box-shadow:var(--shadow)
        }

.back-top.show{opacity:1;pointer-events:auto}

.back-top:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

.action-bar{
            display:none;position:fixed;bottom:0;left:0;right:0;z-index:998;
            background:rgba(255,255,255,.94);backdrop-filter:blur(12px);
            -webkit-backdrop-filter:blur(12px);
            border-top:1px solid var(--border);
            box-shadow:0 -4px 16px rgba(0,0,0,.08)
        }

.action-bar a,.action-bar button{
            flex:1;padding:.9rem 0;text-align:center;font-size:.95rem;font-weight:600;
            border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.4rem
        }

.action-bar .action-call{background:transparent;color:var(--dark)}

.action-bar .action-wx{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff}

.toast{
            position:fixed;bottom:5rem;left:50%;transform:translateX(-50%) translateY(20px);
            background:var(--dark);color:#fff;padding:.6rem 1.2rem;
            border-radius:2rem;font-size:.82rem;opacity:0;
            transition:all .4s;z-index:99999;pointer-events:none;
            box-shadow:0 8px 28px rgba(0,0,0,.2)
        }

.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

:where(a, button, [role="button"], [tabindex]):focus-visible{
    outline: 3px solid rgba(249, 115, 22, .42);
    outline-offset: 3px;
}

.modal-panel:focus{ outline: none; }

@media (prefers-reduced-motion: reduce){
    *,*::before,*::after{
        animation-duration:.01ms !important;
        animation-iteration-count:1 !important;
        transition-duration:.01ms !important;
        scroll-behavior:auto !important
    }
    .reveal,.reveal-left,.reveal-right{opacity:1;transform:none}
}