/* ============================================
   彳亍漫游 - 产品官网样式
   文旅清新风格 · 保留原配色体系
   ============================================ */

:root {
    --green: #2d8b4e;
    --green-dark: #1b5e30;
    --green-light: #e8f5e9;
    --green-lighter: #f0faf3;
    --teal: #0d9488;
    --teal-light: #ccfbf1;
    --gold: #e8a838;
    --gold-light: #fde68a;
    --gold-soft: rgba(232,168,56,0.08);
    --cream: #fefcf7;
    --warm: #faf7f0;
    --card: #ffffff;
    --text: #2c2418;
    --text-muted: #6b5e4f;
    --text-light: #a09080;
    --border: #e8e0d4;
    --border-light: #f0ebe2;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 2px 16px rgba(0,0,0,0.04);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.08);
    --font: 'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
    --transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
    --transition-fast: all 0.2s cubic-bezier(0.4,0,0.2,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:var(--font);color:var(--text);background:var(--cream);line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.container{max-width:1200px;margin:0 auto;padding:0 28px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* ====== Nav ====== */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(254,252,247,0.82);backdrop-filter:blur(20px);border-bottom:1px solid rgba(45,139,78,0.08);height:76px;transition:var(--transition)}
.nav.scrolled{background:rgba(254,252,247,0.95);box-shadow:0 2px 24px rgba(45,90,39,0.06)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 28px;display:flex;align-items:center;justify-content:space-between;height:100%}
.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--green-dark);font-weight:800;font-size:1.25rem;letter-spacing:-0.3px}
.nav-brand .star{font-size:1.4rem;color:var(--gold);animation:starPulse 3s ease-in-out infinite}
@keyframes starPulse{0%,100%{filter:drop-shadow(0 0 4px rgba(232,168,56,0.3))}50%{filter:drop-shadow(0 0 12px rgba(232,168,56,0.6))}}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none}
.nav-links a{color:var(--text-muted);text-decoration:none;font-size:14px;font-weight:500;transition:color .2s;position:relative;padding:4px 0}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--gold),var(--gold-light));border-radius:2px;transition:width .3s}
.nav-links a:hover{color:var(--green)}
.nav-links a:hover::after{width:100%}
.nav-cta{padding:9px 22px;background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff!important;border-radius:50px;font-weight:600!important}
.nav-cta::after{display:none!important}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(45,139,78,0.35)}
.menu-btn{display:none;background:none;border:none;color:var(--text);font-size:24px;cursor:pointer}

/* ====== 下拉菜单 ====== */
.nav-dropdown{position:relative}
.nav-dropbtn{
    cursor:pointer;
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-dropdown-content{
    display:none;
    position:absolute;
    top:100%;
    left:50%;
    transform:translateX(-50%);
    min-width:160px;
    background:rgba(254,252,247,0.98);
    backdrop-filter:blur(20px);
    border:1px solid rgba(45,139,78,0.1);
    border-radius:12px;
    box-shadow:0 8px 32px rgba(45,90,39,0.12);
    padding:8px 0;
    z-index:1001;
    opacity:0;
    visibility:hidden;
    transition:opacity 0.25s,visibility 0.25s,transform 0.25s;
    margin-top:8px;
}
.nav-dropdown-content::before{
    content:'';
    position:absolute;
    top:-6px;
    left:50%;
    transform:translateX(-50%);
    border-left:6px solid transparent;
    border-right:6px solid transparent;
    border-bottom:6px solid rgba(45,139,78,0.1);
}
.nav-dropdown-content a{
    display:block;
    padding:10px 20px;
    color:var(--text-muted);
    font-size:13px;
    white-space:nowrap;
    transition:all 0.2s;
    border-radius:0;
}
.nav-dropdown-content a:hover{
    background:rgba(45,139,78,0.06);
    color:var(--green);
}
.nav-dropdown:hover .nav-dropdown-content{
    display:block;
    opacity:1;
    visibility:visible;
}
@media(max-width:768px){
    .nav-dropdown-content{
        position:static;
        transform:none;
        box-shadow:none;
        border:none;
        background:rgba(45,139,78,0.04);
        padding:4px 0 4px 20px;
        margin-top:4px;
    }
    .nav-dropdown-content::before{display:none}
    .nav-dropbtn::after{content:' ▼'!important;font-size:10px}
}

/* ====== Sections Common ====== */
.sec{padding:100px 0;position:relative}
.sec-alt{background:var(--warm)}
.sec-dark{background:linear-gradient(180deg,#1a2e1a 0%,#1b3a1b 100%);color:#fff}
.sec-tag{display:inline-flex;align-items:center;gap:6px;padding:7px 18px;background:linear-gradient(135deg,rgba(45,139,78,0.06),rgba(232,168,56,0.06));border:1px solid rgba(45,139,78,0.1);border-radius:50px;color:var(--green);font-size:12px;font-weight:600;letter-spacing:1px;margin-bottom:18px}
.sec-tag::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 6px rgba(232,168,56,0.4)}
.sec-dark .sec-tag{background:rgba(255,255,255,0.06);border-color:rgba(255,255,255,0.1);color:var(--gold-light)}
.sec-head{text-align:center;margin-bottom:56px}
.sec-head h2{font-size:clamp(1.8rem,3vw,2.4rem);font-weight:800;color:var(--text);letter-spacing:-0.5px;margin-bottom:12px}
.sec-dark .sec-head h2{color:#fff}
.sec-head .sub{font-size:15px;color:var(--text-muted);max-width:560px;margin:0 auto;line-height:1.7}
.sec-dark .sec-head .sub{color:rgba(255,255,255,0.5)}
.text-grad{background:linear-gradient(135deg,var(--green),var(--teal));-webkit-background-clip:text;-webkit-text-fill-color:transparent}

/* ====== Hero ====== */
.hero{min-height:100vh;display:flex;align-items:center;text-align:center;padding-top:76px;position:relative;overflow:hidden;background:linear-gradient(170deg,#e8f5e9 0%,#edf7ed 15%,#f7faf2 30%,#faf8ec 50%,#fdf6e3 65%,#fef5e7 80%,#f5f0f8 100%)}
.hero-blob{position:absolute;border-radius:50%;filter:blur(80px);opacity:0.3;pointer-events:none}
.hero-blob.h1{width:450px;height:450px;background:#b8e6c8;top:-100px;right:-80px;animation:floatH 10s ease-in-out infinite}
.hero-blob.h2{width:350px;height:350px;background:#fde68a;bottom:-60px;left:-60px;animation:floatH 12s ease-in-out infinite 1s}
.hero-blob.h3{width:250px;height:250px;background:#ccfbf1;top:45%;left:50%;opacity:0.2;animation:floatH 11s ease-in-out infinite 2s}
@keyframes floatH{0%,100%{transform:translateY(0) scale(1)}33%{transform:translateY(-20px) scale(1.03)}66%{transform:translateY(-10px) scale(0.97)}}
.hero-content{position:relative;z-index:2;max-width:800px;margin:0 auto;padding:60px 24px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 22px;background:rgba(45,139,78,0.06);border:1px solid rgba(45,139,78,0.12);border-radius:50px;color:var(--green);font-size:14px;font-weight:600;margin-bottom:26px}
.hero-badge .spark{color:var(--gold);animation:spin 3s linear infinite;display:inline-block}
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
.hero h1{font-size:clamp(2.2rem,5vw,3.8rem);font-weight:900;line-height:1.15;margin-bottom:18px;color:var(--green-dark);letter-spacing:-1px}
.hero h1 .hl{background:linear-gradient(135deg,var(--gold) 0%,#f5c96a 40%,var(--gold) 100%);background-size:200% 100%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:shimmer 3s linear infinite}
@keyframes shimmer{0%{background-position:0% 50%}100%{background-position:200% 50%}}
.hero p{font-size:17px;color:var(--text-muted);margin-bottom:16px;line-height:1.9;max-width:560px;margin-left:auto;margin-right:auto}
.hero-audience{font-size:14px;color:var(--green);font-weight:600;margin-bottom:8px;letter-spacing:0.3px;animation:fadeInUp 0.8s ease-out 0.25s both}
.hero-stats{display:flex;justify-content:center;gap:60px;margin-bottom:40px;flex-wrap:wrap}
.hero-stat{text-align:center}
.hero-stat .n{display:block;font-size:2.6rem;font-weight:900;background:linear-gradient(135deg,var(--green-dark),var(--green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.hero-stat .l{display:block;font-size:13px;color:var(--text-muted);margin-top:6px;font-weight:500}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:8px}

.btn{display:inline-flex;align-items:center;gap:8px;padding:15px 36px;border-radius:50px;font-size:15px;font-weight:700;text-decoration:none;cursor:pointer;transition:var(--transition);letter-spacing:0.5px;border:none;font-family:inherit}
.btn-green{background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;box-shadow:0 4px 20px rgba(45,139,78,0.3)}
.btn-green:hover{transform:translateY(-3px);box-shadow:0 8px 30px rgba(45,139,78,0.4)}
.btn-outline{background:rgba(255,255,255,0.7);color:var(--green);border:2px solid rgba(45,139,78,0.2);backdrop-filter:blur(10px)}
.btn-outline:hover{background:var(--green);color:#fff;border-color:var(--green);transform:translateY(-3px)}
.btn-gold{background:var(--gold);color:#fff;box-shadow:0 4px 20px rgba(232,168,56,0.3)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 8px 30px rgba(232,168,56,0.45)}
.btn-invest{background:rgba(255,255,255,0.15);color:#fff;border:2px solid rgba(255,255,255,0.25);backdrop-filter:blur(10px)}
.btn-invest:hover{background:#fff;color:var(--green-dark);border-color:#fff;transform:translateY(-3px)}
.btn-lg{padding:18px 48px;font-size:16px}
.btn-full{width:100%;justify-content:center;text-align:center}
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

/* ====== Value Props ====== */
.props-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.prop-card{text-align:center;padding:40px 24px 32px;background:var(--card);border-radius:var(--radius);transition:var(--transition);border:1px solid var(--border-light);position:relative;overflow:hidden}
.prop-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--green),var(--gold));transform:scaleX(0);transition:transform .4s}
.prop-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.prop-card:hover::before{transform:scaleX(1)}
.prop-card .icon{font-size:2.6rem;margin-bottom:16px;display:inline-block;transition:var(--transition)}
.prop-card:hover .icon{transform:scale(1.15)}
.prop-card h3{font-size:1.05rem;font-weight:700;color:var(--green-dark);margin-bottom:10px}
.prop-card p{font-size:13px;color:var(--text-muted);line-height:1.7}

/* ====== Mode Cards ====== */
.mode-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mode-card{background:var(--card);border-radius:var(--radius);padding:32px 24px;transition:var(--transition);border:1px solid var(--border-light);text-align:center}
.mode-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--green)}
.mode-card .icon{font-size:2.4rem;margin-bottom:14px;display:block}
.mode-card h3{font-size:1.05rem;font-weight:700;color:var(--green-dark);margin-bottom:8px}
.mode-card p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* ====== Task Grid (17 types with icons) ====== */
.task-grid-17{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;padding:24px;background:var(--card);border-radius:var(--radius);border:1px solid var(--border-light)}
.task-item{display:flex;align-items:center;gap:10px;padding:14px 16px;background:linear-gradient(135deg,var(--green-lighter),#fff);border:1px solid rgba(45,139,78,0.08);border-radius:var(--radius-sm);font-size:13px;font-weight:600;color:var(--green);transition:var(--transition);cursor:default}
.task-item:hover{background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;border-color:transparent;transform:translateY(-3px);box-shadow:0 6px 20px rgba(45,139,78,0.2)}
.task-item .task-emoji{font-size:1.3rem;flex-shrink:0}

/* ====== Scene Cards ====== */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-card{border-radius:var(--radius);overflow:hidden;background:var(--card);border:1px solid var(--border-light);transition:var(--transition);box-shadow:0 2px 16px rgba(0,0,0,0.03)}
.scene-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}
.scene-card .si{height:160px;display:flex;align-items:center;justify-content:center;font-size:4rem;position:relative;overflow:hidden}
.scene-card .si::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,0.04) 100%)}
.s1{background:linear-gradient(135deg,#667eea,#764ba2)}.s2{background:linear-gradient(135deg,#f093fb,#f5576c)}.s3{background:linear-gradient(135deg,#4facfe,#00f2fe)}.s4{background:linear-gradient(135deg,#43e97b,#38f9d7)}.s5{background:linear-gradient(135deg,#fa709a,#fee140)}.s6{background:linear-gradient(135deg,#a18cd1,#fbc2eb)}
.scene-card .sb{padding:24px}
.scene-card .sb h4{font-size:1.1rem;font-weight:700;margin-bottom:8px;color:var(--text)}
.scene-card .sb p{font-size:13px;color:var(--text-muted);line-height:1.6}
.scene-roi{margin-top:12px;padding-top:12px;border-top:1px solid var(--border-light);display:flex;flex-wrap:wrap;gap:8px}
.roi-item{padding:4px 10px;background:var(--green-lighter);border-radius:4px;font-size:11px;font-weight:600;color:var(--green)}
.roi-item .rv{color:var(--gold);font-weight:700;margin-right:2px}

/* ====== Case Studies ====== */
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{background:var(--card);border-radius:var(--radius);padding:32px;border:1px solid var(--border-light);transition:var(--transition)}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.case-header{display:flex;align-items:center;gap:16px;margin-bottom:20px}
.case-icon{font-size:2.4rem;flex-shrink:0}
.case-meta h4{font-size:1rem;font-weight:700;color:var(--green-dark);margin-bottom:4px}
.case-tag{display:inline-block;padding:2px 12px;border-radius:50px;font-size:11px;font-weight:600}
.scenic-tag{background:rgba(102,126,234,0.1);color:#667eea}
.mall-tag{background:rgba(245,87,108,0.1);color:#f5576c}
.team-tag{background:rgba(67,233,123,0.1);color:#43e97b}
.case-body p{font-size:13px;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
.case-kpis{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:20px}
.kpi-item{text-align:center;padding:12px 8px;background:var(--green-lighter);border-radius:var(--radius-sm)}
.kpi-num{display:block;font-size:1.3rem;font-weight:900;color:var(--green);line-height:1}
.kpi-label{display:block;font-size:10px;color:var(--text-muted);margin-top:4px}
.case-before-after{display:flex;gap:10px;align-items:stretch}
.ba-col{flex:1;padding:14px;border-radius:var(--radius-sm);font-size:12px}
.ba-col.before{background:#fff3f3;border:1px solid #fecaca}
.ba-col.after{background:var(--green-lighter);border:1px solid #bbf7d0}
.ba-label{display:block;font-weight:700;margin-bottom:8px;font-size:12px;color:var(--text)}
.ba-col.after .ba-label{color:var(--green)}
.ba-col.before .ba-label{color:#dc2626}
.ba-col ul{list-style:none;padding:0}
.ba-col li{font-size:11px;color:var(--text-muted);margin-bottom:4px;padding-left:10px;position:relative}
.ba-col li::before{content:'•';position:absolute;left:0;color:var(--text-light)}
.ba-arrow{display:flex;align-items:center;font-size:1.5rem;color:var(--text-light);flex-shrink:0}

/* ====== Investor ====== */
.invest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.invest-card{padding:36px 28px;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);border-radius:var(--radius);transition:var(--transition)}
.invest-card:hover{background:rgba(255,255,255,0.06);border-color:rgba(232,168,56,0.25);transform:translateY(-4px)}
.invest-card .n{font-size:2.6rem;font-weight:900;color:var(--gold-light);line-height:1}
.invest-card .l{font-size:15px;color:rgba(255,255,255,0.65);margin:6px 0;font-weight:600}
.invest-card .d{font-size:12px;color:rgba(255,255,255,0.35);line-height:1.6}

/* Radar Chart (SVG-based) */
.radar-section{margin-top:48px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.radar-chart svg{width:100%;max-width:400px;display:block;margin:0 auto}
.radar-legend{display:flex;flex-direction:column;gap:14px}
.radar-legend h3{font-size:1.3rem;font-weight:800;color:#fff;margin-bottom:8px}
.radar-legend-item{display:flex;align-items:center;gap:12px;padding:12px 16px;background:rgba(255,255,255,0.04);border-radius:var(--radius-sm);transition:var(--transition)}
.radar-legend-item:hover{background:rgba(255,255,255,0.08)}
.radar-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}
.radar-dot.rd1{background:#fde68a;box-shadow:0 0 10px rgba(253,230,138,0.5)}
.radar-dot.rd2{background:#5eead4;box-shadow:0 0 10px rgba(94,234,212,0.5)}
.radar-dot.rd3{background:#a5b4fc;box-shadow:0 0 10px rgba(165,180,252,0.5)}
.radar-dot.rd4{background:#d8b4fe;box-shadow:0 0 10px rgba(216,180,254,0.5)}
.radar-dot.rd5{background:#fda4af;box-shadow:0 0 10px rgba(253,164,175,0.5)}
.radar-dot.rd6{background:#86efac;box-shadow:0 0 10px rgba(134,239,172,0.5)}
.radar-legend-item span{font-size:13px;color:rgba(255,255,255,0.7);font-weight:500}
.radar-legend-item strong{color:var(--gold-light);margin-left:auto;font-size:14px}

/* Revenue Model Cards */
.revenue-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
.rev-card{text-align:center;padding:28px 18px;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);transition:var(--transition)}
.rev-card:hover{background:rgba(255,255,255,0.08);border-color:rgba(232,168,56,0.2);transform:translateY(-4px)}
.rev-card .rev-icon{font-size:2rem;margin-bottom:10px;display:block}
.rev-card .rev-name{font-size:15px;font-weight:700;color:#fff;margin-bottom:6px}
.rev-card .rev-desc{font-size:12px;color:rgba(255,255,255,0.45);line-height:1.6}
.rev-card .rev-arrow{display:block;font-size:18px;color:var(--gold-light);margin-top:8px}

/* ====== Pricing ====== */
.pricing-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:start}
.price-card{background:var(--card);border-radius:var(--radius);padding:36px 28px;border:1px solid var(--border-light);transition:var(--transition);text-align:center;position:relative}
.price-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:var(--green)}
.price-card.featured{border:2px solid var(--gold);box-shadow:0 4px 24px rgba(232,168,56,0.12)}
.price-card.featured::before{content:'推荐';position:absolute;top:-12px;left:50%;transform:translateX(-50%);padding:4px 16px;background:linear-gradient(135deg,var(--gold),#f5c96a);color:#fff;border-radius:50px;font-size:11px;font-weight:700;letter-spacing:1px}
.price-name{font-size:1.1rem;font-weight:800;color:var(--green-dark);margin-bottom:6px}
.price-amount{font-size:2rem;font-weight:900;color:var(--green);margin-bottom:4px}
.price-amount small{font-size:13px;color:var(--text-muted);font-weight:400}
.price-period{font-size:12px;color:var(--text-light);margin-bottom:20px}
.price-features{list-style:none;margin-bottom:24px;text-align:left}
.price-features li{padding:8px 0;font-size:13px;color:var(--text-muted);border-bottom:1px solid var(--border-light);display:flex;align-items:center;gap:8px}
.price-features li::before{content:'✓';color:var(--green);font-weight:700;flex-shrink:0}
.price-note{font-size:12px;color:var(--text-light);margin-top:16px;padding-top:16px;border-top:1px solid var(--border-light);line-height:1.6}

/* ====== FAQ ====== */
.faq-grid{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--card);border-radius:var(--radius);border:1px solid var(--border-light);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:var(--green);box-shadow:var(--shadow)}
.faq-q{padding:20px 24px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;font-size:15px;font-weight:700;color:var(--text);transition:var(--transition-fast);user-select:none}
.faq-q:hover{color:var(--green)}
.faq-q .faq-icon{font-size:1.2rem;transition:var(--transition);flex-shrink:0;margin-left:16px}
.faq-item.open .faq-q .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.4s ease,padding 0.4s ease}
.faq-item.open .faq-a{max-height:300px}
.faq-a-inner{padding:0 24px 20px;font-size:14px;color:var(--text-muted);line-height:1.8}

/* ====== AR/VR Experience ====== */
.ar-vr-section{margin-top:48px}
.ar-vr-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.ar-card,.vr-card{background:var(--card);border-radius:var(--radius);padding:40px 32px;border:1px solid var(--border-light);transition:var(--transition);position:relative;overflow:hidden;text-align:center}
.ar-card::before,.vr-card::before{content:'';position:absolute;inset:0;opacity:0;transition:opacity 0.5s ease}
.ar-card::before{background:radial-gradient(circle at center,rgba(45,139,78,0.06) 0%,transparent 70%)}
.vr-card::before{background:radial-gradient(circle at center,rgba(13,148,136,0.06) 0%,transparent 70%)}
.ar-card:hover::before,.vr-card:hover::before{opacity:1}
.ar-card:hover,.vr-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--green)}
.ar-icon,.vr-icon{font-size:4rem;display:block;margin-bottom:20px;animation:arPulse 2s ease-in-out infinite}
@keyframes arPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.1) rotate(3deg)}}
.ar-card h4,.vr-card h4{font-size:1.3rem;font-weight:800;margin-bottom:12px;color:var(--green-dark)}
.ar-card p,.vr-card p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
.ar-features{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.ar-tag{padding:6px 14px;background:rgba(45,139,78,0.06);border:1px solid rgba(45,139,78,0.1);border-radius:50px;font-size:12px;color:var(--green);font-weight:600;transition:var(--transition-fast)}
.ar-tag:hover{background:var(--green);color:#fff}

/* ====== Data Dashboard ====== */
.dashboard-sim{max-width:900px;margin:0 auto;background:linear-gradient(135deg,#0a1628,#0f1f3a);border-radius:var(--radius);padding:32px;border:1px solid rgba(255,255,255,0.06);box-shadow:0 8px 40px rgba(0,0,0,0.3)}
.dash-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,0.06)}
.dash-title{font-size:1.1rem;font-weight:700;color:#fff;display:flex;align-items:center;gap:8px}
.dash-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;animation:dashBlink 1.5s ease-in-out infinite}
@keyframes dashBlink{0%,100%{opacity:1}50%{opacity:0.3}}
.dash-time{font-size:12px;color:rgba(255,255,255,0.4)}
.dash-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
.dash-card{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius-sm);padding:18px;text-align:center;transition:var(--transition)}
.dash-card:hover{background:rgba(255,255,255,0.06)}
.dash-val{font-size:1.8rem;font-weight:900;color:var(--gold-light);line-height:1}
.dash-label{font-size:11px;color:rgba(255,255,255,0.4);margin-top:6px}
.dash-chart{background:rgba(255,255,255,0.02);border-radius:var(--radius-sm);padding:20px;height:120px;display:flex;align-items:flex-end;gap:8px}
.dash-bar{flex:1;border-radius:6px 6px 0 0;transition:height 1s ease;position:relative;min-width:20px}
.dash-bar:nth-child(odd){background:linear-gradient(180deg,rgba(45,139,78,0.7),rgba(45,139,78,0.2))}
.dash-bar:nth-child(even){background:linear-gradient(180deg,rgba(232,168,56,0.5),rgba(232,168,56,0.15))}

/* ====== Tech (enhanced) ====== */
.tech-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tech-card{text-align:center;padding:28px 16px;background:var(--card);border-radius:var(--radius-sm);border:1px solid var(--border-light);transition:var(--transition)}
.tech-card:hover{box-shadow:var(--shadow-lg);border-color:var(--green);transform:translateY(-4px)}
.tech-card .icon{font-size:2rem;margin-bottom:10px;display:inline-block;transition:var(--transition)}
.tech-card:hover .icon{transform:scale(1.15)}
.tech-card h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:4px}
.tech-card span{font-size:11px;color:var(--text-muted)}
.tech-concurrency{max-width:800px;margin:40px auto 0;padding:28px 32px;background:var(--card);border-radius:var(--radius);border:1px solid var(--border-light);text-align:center}
.tech-concurrency h4{font-size:1rem;font-weight:700;color:var(--green-dark);margin-bottom:16px}
.concurrency-bars{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.conc-item{text-align:center;padding:16px 24px;background:var(--green-lighter);border-radius:var(--radius-sm);transition:var(--transition);min-width:120px}
.conc-item:hover{background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;transform:translateY(-3px)}
.conc-item:hover .conc-num,.conc-item:hover .conc-label{color:#fff}
.conc-num{display:block;font-size:1.5rem;font-weight:900;color:var(--green);line-height:1}
.conc-label{display:block;font-size:11px;color:var(--text-muted);margin-top:4px}

/* ====== Business ====== */
.biz-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.biz-card{text-align:center;padding:36px 24px;background:var(--card);border-radius:var(--radius);border:1px solid var(--border-light);transition:var(--transition)}
.biz-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--green)}
.biz-card .icon{font-size:2.6rem;margin-bottom:14px;display:inline-block;transition:var(--transition)}
.biz-card:hover .icon{transform:scale(1.1) rotate(-3deg)}
.biz-card h4{font-size:1.1rem;font-weight:700;margin-bottom:8px;color:var(--green-dark)}
.biz-card p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* ====== Advantages ====== */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:1000px;margin:0 auto}
.adv-item{display:flex;gap:16px;align-items:flex-start;padding:28px 22px;background:var(--card);border-radius:var(--radius);border:1px solid var(--border-light);transition:var(--transition)}
.adv-item:hover{box-shadow:var(--shadow-lg);border-color:var(--green);transform:translateY(-4px)}
.adv-check{flex-shrink:0;width:36px;height:36px;background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem}
.adv-text h4{font-size:1rem;font-weight:700;color:var(--green-dark);margin-bottom:4px}
.adv-text p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* ====== CTA ====== */
.cta-sec{text-align:center;padding:120px 0;background:linear-gradient(135deg,var(--green-dark),var(--green),var(--teal));position:relative;overflow:hidden}
.cta-sec::before{content:'';position:absolute;inset:0;background:radial-gradient(circle 400px at 20% 50%,rgba(232,168,56,0.12),transparent 70%),radial-gradient(circle 300px at 80% 30%,rgba(109,184,96,0.1),transparent 70%);pointer-events:none}
.cta-sec .container{position:relative;z-index:2}
.cta-sec h2{font-size:2.4rem;font-weight:900;color:#fff;margin-bottom:14px}
.cta-sec p{font-size:16px;color:rgba(255,255,255,0.8);margin-bottom:36px;max-width:480px;margin-left:auto;margin-right:auto}

/* ====== Contact ====== */
.contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:48px;max-width:1000px;margin:0 auto}
.ci-items{display:flex;flex-direction:column;gap:20px}
.ci-item{display:flex;gap:16px;align-items:center;padding:18px;background:var(--card);border-radius:var(--radius-sm);border:1px solid var(--border-light);transition:var(--transition)}
.ci-item:hover{box-shadow:var(--shadow);transform:translateX(4px)}
.ci-item .ci-icon{width:48px;height:48px;background:var(--green-lighter);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}
.ci-item h4{font-size:12px;color:var(--text-muted);font-weight:500;margin-bottom:2px}
.ci-item p{font-size:15px;color:var(--text);font-weight:600}
.contact-form{padding:36px;background:var(--card);border-radius:var(--radius);border:1px solid var(--border-light)}
.contact-form h3{font-size:1.2rem;font-weight:700;text-align:center;margin-bottom:24px;color:var(--green-dark)}
.form-row{margin-bottom:14px}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:14px 16px;border:2px solid var(--border-light);border-radius:var(--radius-sm);font-size:14px;font-family:var(--font);background:var(--cream);transition:var(--transition)}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 4px rgba(45,139,78,0.06);background:#fff}
.form-row textarea{resize:vertical;min-height:100px}

/* ====== Footer ====== */
.footer{background:#1a2e1a;color:rgba(255,255,255,0.5);padding:60px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;max-width:1200px;margin:0 auto 40px;padding:0 28px}
.ft-brand h3{color:#fff;font-size:1.2rem;display:flex;align-items:center;gap:6px;margin-bottom:10px}
.ft-brand .star{color:var(--gold)}
.ft-brand p{font-size:13px;color:rgba(255,255,255,0.4)}
.ft-col h4{color:#fff;font-size:14px;margin-bottom:14px;font-weight:600}
.ft-col a{display:block;font-size:13px;color:rgba(255,255,255,0.35);text-decoration:none;margin-bottom:10px;transition:color .2s}
.ft-col a:hover{color:var(--gold-light);transform:translateX(4px)}
.footer-bot{border-top:1px solid rgba(255,255,255,0.06);padding-top:24px;text-align:center;font-size:12px;max-width:1200px;margin:0 auto}

/* ====== Scroll Reveal ====== */
.reveal{opacity:0;transform:translateY(40px);transition:opacity 0.7s cubic-bezier(0.4,0,0.2,1),transform 0.7s cubic-bezier(0.4,0,0.2,1)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ====== Responsive ====== */
@media(max-width:1024px){
    .props-grid,.mode-grid,.task-grid-17{grid-template-columns:repeat(2,1fr)}
    .scene-grid,.biz-grid,.pricing-grid{grid-template-columns:repeat(2,1fr)}
    .tech-grid{grid-template-columns:repeat(3,1fr)}
    .invest-grid{grid-template-columns:repeat(2,1fr)}
    .cases-grid{grid-template-columns:1fr}
    .radar-section{grid-template-columns:1fr}
    .dash-grid{grid-template-columns:repeat(2,1fr)}
    .ar-vr-grid{grid-template-columns:1fr}
    .hero-stats{gap:30px}
}
@media(max-width:768px){
    .nav-links{display:none;position:absolute;top:76px;left:0;width:100%;background:rgba(254,252,247,0.98);padding:20px 28px;flex-direction:column;gap:14px;border-bottom:1px solid var(--border);box-shadow:0 4px 24px rgba(0,0,0,0.06)}
    .nav-links.open{display:flex}
    .menu-btn{display:block}
    .hero h1{font-size:2rem}
    .hero-stats{gap:20px;flex-wrap:wrap}
    .hero-stat .n{font-size:1.7rem}
    .hero-btns{flex-direction:column;align-items:center}
    .props-grid,.mode-grid,.task-grid-17,.scene-grid,.biz-grid,.pricing-grid,.tech-grid,.invest-grid,.adv-grid{grid-template-columns:1fr}
    .cases-grid{grid-template-columns:1fr}
    .radar-section{grid-template-columns:1fr}
    .dash-grid{grid-template-columns:repeat(2,1fr)}
    .ar-vr-grid,.revenue-grid{grid-template-columns:1fr}
    .contact-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    .sec-head h2{font-size:1.7rem}
    .cta-sec h2{font-size:1.8rem}
    .case-kpis{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
    .footer-grid{grid-template-columns:1fr}
    .dash-grid{grid-template-columns:1fr}
    .case-before-after{flex-direction:column}
    .ba-arrow{transform:rotate(90deg)}
}

/* ========================================
   动效增强层 — 2026-06-09
   ======================================== */

.scroll-progress-bar{position:fixed;top:0;left:0;height:3px;background:linear-gradient(to right,var(--green),var(--gold));z-index:10000;width:0;transition:width .12s linear;box-shadow:0 0 12px rgba(45,139,78,.35)}

@keyframes anim-slide-up{from{opacity:0;transform:translateY(48px)}to{opacity:1;transform:translateY(0)}}
@keyframes anim-slide-left{from{opacity:0;transform:translateX(-48px)}to{opacity:1;transform:translateX(0)}}
@keyframes anim-slide-right{from{opacity:0;transform:translateX(48px)}to{opacity:1;transform:translateX(0)}}
@keyframes anim-scale-in{from{opacity:0;transform:scale(.88)}to{opacity:1;transform:scale(1)}}
@keyframes anim-rotate-in{from{opacity:0;transform:rotate(-6deg) scale(.92)}to{opacity:1;transform:rotate(0) scale(1)}}

[data-anim]{opacity:0;transition:opacity .7s cubic-bezier(.25,.46,.45,.94),transform .7s cubic-bezier(.25,.46,.45,.94)}
[data-anim=up]{transform:translateY(48px)}
[data-anim=left]{transform:translateX(-48px)}
[data-anim=right]{transform:translateX(48px)}
[data-anim=scale]{transform:scale(.88)}
[data-anim=rotate]{transform:rotate(-6deg) scale(.92)}
[data-anim].anim-visible{opacity:1;transform:translate(0,0) scale(1) rotate(0)}

[data-anim-stagger] > *{opacity:0;transform:translateY(36px);transition:opacity .5s ease,transform .5s ease}
[data-anim-stagger].anim-visible > *:nth-child(1){transition-delay:.04s}
[data-anim-stagger].anim-visible > *:nth-child(2){transition-delay:.10s}
[data-anim-stagger].anim-visible > *:nth-child(3){transition-delay:.16s}
[data-anim-stagger].anim-visible > *:nth-child(4){transition-delay:.22s}
[data-anim-stagger].anim-visible > *:nth-child(5){transition-delay:.28s}
[data-anim-stagger].anim-visible > *:nth-child(6){transition-delay:.34s}
[data-anim-stagger].anim-visible > *:nth-child(7){transition-delay:.40s}
[data-anim-stagger].anim-visible > *:nth-child(8){transition-delay:.46s}
[data-anim-stagger].anim-visible > *{opacity:1;transform:translateY(0)}

@keyframes anim-btn-pulse{0%,100%{box-shadow:0 0 6px rgba(45,139,78,.35),0 0 18px rgba(45,139,78,.15)}50%{box-shadow:0 0 14px rgba(45,139,78,.55),0 0 36px rgba(45,139,78,.28)}}
.btn-pulse{animation:anim-btn-pulse 2.8s ease-in-out infinite}

.back-to-top{position:fixed;bottom:36px;right:36px;z-index:9999;width:50px;height:50px;background:var(--green-dark);color:#fff;border:1px solid var(--green);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(16px);transition:all .35s ease;font-size:1.4rem;box-shadow:0 4px 20px rgba(0,0,0,.2)}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{transform:translateY(-4px);box-shadow:0 8px 28px rgba(0,0,0,.3);background:var(--gold);border-color:var(--gold)}

.hero-particle-layer{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:1}
@keyframes anim-particle-rise{0%{transform:translateY(105vh) scale(0);opacity:0}8%{opacity:.8}88%{opacity:.7}100%{transform:translateY(-8vh) scale(1.6);opacity:0}}
.hero-particle{position:absolute;animation:anim-particle-rise var(--pdur,9s) linear infinite;animation-delay:var(--pdelay,0s);left:var(--px,50%);font-size:var(--psize,0.9rem);opacity:0}

@keyframes anim-count-up{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
[data-count-up].count-done{animation:anim-count-up .5s ease-out forwards}

[data-parallax]{will-change:transform}
.card-tilt-active{transition:transform .15s ease-out,box-shadow .15s ease-out}

@keyframes anim-line-grow{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.line-grow{transform-origin:left;animation:anim-line-grow .8s cubic-bezier(.25,.46,.45,.94) forwards}

@keyframes anim-blink-caret{0%,100%{border-color:transparent}50%{border-color:currentColor}}
.typewriter-cursor{display:inline-block;border-right:2px solid;animation:anim-blink-caret .75s step-end infinite}

@keyframes anim-shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
.shimmer-overlay{background:linear-gradient(105deg,transparent 35%,rgba(255,255,255,.12) 50%,transparent 65%);background-size:200% 100%;animation:anim-shimmer 2.5s ease-in-out infinite}

@media (prefers-reduced-motion:reduce){
  [data-anim],[data-anim-stagger] > *,.hero-particle,.scroll-progress-bar,[data-parallax]{animation:none!important;transition:none!important;opacity:1!important;transform:none!important}
}