*{margin:0;padding:0;box-sizing:border-box}
:root{
  --orange:#ff5a1f;--orange-dark:#e64108;--orange-light:#ff8a4c;
  --orange-glow:rgba(255,90,31,.35);
  --ink:#1a1d24;--ink-2:#3a3f4a;--muted:#6b7280;
  --line:#eee6e1;--bg-soft:#fff8f4;--bg-card:#ffffff;
  --radius:16px;--shadow:0 8px 30px rgba(255,90,31,.10);
  --shadow-lg:0 20px 50px rgba(26,29,36,.12);
}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
section{padding:80px 0;position:relative}
.section-head{text-align:center;max-width:760px;margin:0 auto 48px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--orange);font-weight:700;text-transform:uppercase;margin-bottom:12px;padding:4px 14px;background:var(--bg-soft);border-radius:999px;border:1px solid rgba(255,90,31,.18)}
.section-head h2{font-size:clamp(26px,3.4vw,40px);line-height:1.25;letter-spacing:-.5px}
.section-head p{color:var(--muted);margin-top:14px;font-size:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 30px;border-radius:999px;font-weight:700;font-size:15px;border:none;cursor:pointer;transition:.25s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:#fff;box-shadow:0 10px 26px var(--orange-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px var(--orange-glow)}
.btn-ghost{background:#fff;color:var(--orange);border:1.5px solid rgba(255,90,31,.4)}
.btn-ghost:hover{background:var(--bg-soft);transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000;transform:translateY(-2px)}
/* header */
header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.3px}
.brand .ai-page-logo{height:36px;width:auto}
.brand-text span{color:var(--orange)}
.nav-links{display:flex;align-items:center;gap:0;list-style:none}
.nav-links li{position:relative}
.nav-links a{display:block;padding:8px 14px;font-size:14.5px;color:var(--ink-2);font-weight:500;border-radius:8px;transition:.2s}
.nav-links a:hover{color:var(--orange);background:var(--bg-soft)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-cta .btn{padding:10px 22px;font-size:14px}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.menu-toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
/* hero */
.hero{padding:70px 0 80px;background:radial-gradient(circle at 15% 20%,rgba(255,90,31,.10),transparent 55%),radial-gradient(circle at 85% 10%,rgba(255,138,76,.12),transparent 50%),linear-gradient(180deg,#fffaf7,#fff);overflow:hidden;position:relative}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,90,31,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,90,31,.045) 1px,transparent 1px);background-size:52px 52px;mask-image:radial-gradient(circle at 50% 30%,#000,transparent 78%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;background:#fff;border:1px solid rgba(255,90,31,.25);border-radius:999px;font-size:13px;font-weight:600;color:var(--orange-dark);box-shadow:var(--shadow)}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(255,90,31,.18);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(255,90,31,.18)}50%{box-shadow:0 0 0 8px rgba(255,90,31,.05)}}
.hero h1{font-size:clamp(32px,4.6vw,54px);line-height:1.18;letter-spacing:-1.5px;margin:22px 0 18px}
.hero h1 .hl{background:linear-gradient(120deg,var(--orange),var(--orange-dark));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 34px}
.hero-actions .btn{padding:15px 34px;font-size:16px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:520px}
.hero-stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:0 6px 20px rgba(26,29,36,.04)}
.hero-stat b{display:block;font-size:24px;color:var(--orange-dark);letter-spacing:-.5px}
.hero-stat span{font-size:12.5px;color:var(--muted)}
.hero-panel{position:relative;background:linear-gradient(160deg,#1a1d24,#2b2f38);border-radius:24px;padding:30px;box-shadow:0 30px 70px rgba(26,29,36,.28);color:#fff;overflow:hidden}
.hero-panel::after{content:"";position:absolute;top:-60px;right:-60px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(255,90,31,.55),transparent 70%)}
.panel-title{font-size:13px;letter-spacing:2px;color:var(--orange-light);font-weight:700;margin-bottom:20px}
.panel-list{list-style:none;display:flex;flex-direction:column;gap:14px;position:relative;z-index:2}
.panel-list li{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.09);border-radius:12px;font-size:14.5px;transition:.25s}
.panel-list li:hover{background:rgba(255,90,31,.14);transform:translateX(4px)}
.panel-list .tag{font-size:11.5px;padding:3px 10px;border-radius:999px;background:rgba(255,90,31,.22);color:var(--orange-light);font-weight:600}
/* metrics */
.metrics{padding:0;transform:translateY(-46px);position:relative;z-index:5}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px 28px;box-shadow:var(--shadow-lg)}
.metric{text-align:center;padding:6px}
.metric b{display:block;font-size:clamp(28px,3.4vw,40px);letter-spacing:-1px;background:linear-gradient(120deg,var(--orange),var(--orange-dark));-webkit-background-clip:text;background-clip:text;color:transparent}
.metric span{font-size:13.5px;color:var(--muted)}
/* about */
.about{background:var(--bg-soft)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about-copy h2{font-size:clamp(26px,3.2vw,38px);line-height:1.28;letter-spacing:-.8px;margin-bottom:18px}
.about-copy p{color:var(--ink-2);margin-bottom:16px;font-size:15.5px}
.about-points{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.about-points li{display:flex;align-items:center;gap:9px;font-size:14.5px;font-weight:600;color:var(--ink-2)}
.about-points li::before{content:"";width:20px;height:20px;flex:0 0 20px;border-radius:50%;background:linear-gradient(135deg,var(--orange),var(--orange-dark));position:relative}
.about-points li{position:relative}
.about-points li::after{content:"";position:absolute;left:6px;top:9px;width:8px;height:4px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}
.about-visual{position:relative}
.about-visual img{border-radius:20px;box-shadow:var(--shadow-lg);width:100%;object-fit:cover}
.about-card-float{position:absolute;bottom:-22px;left:-18px;background:#fff;border-radius:16px;padding:16px 22px;box-shadow:var(--shadow-lg);border:1px solid var(--line)}
.about-card-float b{font-size:22px;color:var(--orange-dark);display:block}
.about-card-float span{font-size:12.5px;color:var(--muted)}
/* services */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.28s;position:relative;overflow:hidden}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(255,90,31,.3)}
.svc-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(255,90,31,.14),rgba(255,90,31,.06));color:var(--orange-dark);margin-bottom:18px}
.svc-icon svg{width:26px;height:26px}
.svc-card h3{font-size:18px;margin-bottom:10px;letter-spacing:-.3px}
.svc-card p{font-size:14px;color:var(--muted)}
/* one-stop scenarios */
.scene{background:linear-gradient(180deg,#fff,#fff8f4)}
.scene-tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:36px}
.scene-tab{padding:9px 20px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--ink-2);cursor:pointer;transition:.2s}
.scene-tab.active,.scene-tab:hover{background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:#fff;border-color:transparent;box-shadow:0 8px 20px var(--orange-glow)}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scene-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;transition:.25s}
.scene-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(255,90,31,.25)}
.scene-item h4{font-size:15.5px;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.scene-item h4::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange);flex:0 0 7px}
.scene-item p{font-size:13px;color:var(--muted);line-height:1.65}
/* industry / solutions */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.sol-card{border-radius:18px;padding:30px;color:#fff;position:relative;overflow:hidden;min-height:210px;display:flex;flex-direction:column;justify-content:space-between;transition:.28s}
.sol-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(255,90,31,.28)}
.sol-card:nth-child(1){background:linear-gradient(135deg,#ff5a1f,#e64108)}
.sol-card:nth-child(2){background:linear-gradient(135deg,#2b2f38,#1a1d24)}
.sol-card:nth-child(3){background:linear-gradient(135deg,#ff8a4c,#ff5a1f)}
.sol-card:nth-child(4){background:linear-gradient(135deg,#3b4150,#22262f)}
.sol-card:nth-child(5){background:linear-gradient(135deg,#ff6a2b,#d93c05)}
.sol-card:nth-child(6){background:linear-gradient(135deg,#4a5060,#2b2f38)}
.sol-card h3{font-size:20px;letter-spacing:-.3px}
.sol-card p{font-size:13.5px;opacity:.9;margin-top:10px;line-height:1.6}
.sol-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
.sol-tags span{font-size:11.5px;padding:3px 10px;background:rgba(255,255,255,.2);border-radius:999px}
/* network */
.network{background:#1a1d24;color:#fff}
.network .section-head h2{color:#fff}
.network .section-head p{color:rgba(255,255,255,.6)}
.network .eyebrow{background:rgba(255,90,31,.14);border-color:rgba(255,90,31,.3);color:var(--orange-light)}
.net-map{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:10px}
.net-item{padding:24px;border:1px solid rgba(255,255,255,.1);border-radius:14px;background:rgba(255,255,255,.03);transition:.25s}
.net-item:hover{background:rgba(255,90,31,.1);border-color:rgba(255,90,31,.35);transform:translateY(-4px)}
.net-item b{font-size:16px;display:flex;align-items:center;gap:8px}
.net-item b::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange)}
.net-item p{font-size:13px;color:rgba(255,255,255,.55);margin-top:8px}
/* process */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative}
.steps::before{content:"";position:absolute;top:38px;left:8%;right:8%;height:2px;background:linear-gradient(90deg,rgba(255,90,31,.15),rgba(255,90,31,.5),rgba(255,90,31,.15))}
.step{position:relative;text-align:center;z-index:2}
.step-num{width:60px;height:60px;margin:0 auto 18px;border-radius:50%;background:#fff;border:2px solid rgba(255,90,31,.35);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;color:var(--orange-dark);transition:.3s;box-shadow:0 6px 18px rgba(255,90,31,.12)}
.step:hover .step-num{background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:#fff;transform:scale(1.08)}
.step h4{font-size:15.5px;margin-bottom:6px}
.step p{font-size:13px;color:var(--muted)}
/* cases */
.cases{background:var(--bg-soft)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line);transition:.28s}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.case-img{position:relative;overflow:hidden;aspect-ratio:16/10}
.case-img img{width:100%;height:100%;object-fit:cover;transition:.4s}
.case-card:hover .case-img img{transform:scale(1.05)}
.case-body{padding:22px}
.case-body .kicker{font-size:12px;font-weight:700;color:var(--orange-dark);letter-spacing:1px}
.case-body h4{font-size:17px;margin:8px 0 8px}
.case-body p{font-size:13.5px;color:var(--muted)}
.case-metrics{display:flex;gap:18px;margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.case-metrics div b{display:block;font-size:18px;color:var(--orange-dark)}
.case-metrics div span{font-size:11.5px;color:var(--muted)}
/* compare */
.compare-table-wrap{overflow-x:auto;border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow)}
.compare-table{width:100%;border-collapse:collapse;min-width:640px;background:#fff}
.compare-table th,.compare-table td{padding:16px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
.compare-table thead th{background:#1a1d24;color:#fff;font-weight:600;font-size:14px}
.compare-table thead th:first-child{color:var(--orange-light)}
.compare-table tbody tr:hover{background:var(--bg-soft)}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table .pro{color:var(--orange-dark);font-weight:700}
.compare-table .score-cell{font-weight:800;color:var(--orange-dark);font-size:18px}
.badge-star{color:#ff9d2e;letter-spacing:2px}
.rating-banner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;background:linear-gradient(135deg,#fff8f4,#fff);border:1px solid rgba(255,90,31,.25);border-radius:20px;padding:28px 34px;margin-bottom:28px;box-shadow:var(--shadow)}
.rating-banner .big{font-size:46px;font-weight:900;color:var(--orange-dark);letter-spacing:-2px;line-height:1}
.rating-banner .big small{font-size:16px;color:var(--muted);font-weight:600;letter-spacing:0}
.rating-banner .stars{font-size:24px;color:#ff9d2e;letter-spacing:3px}
.rating-banner .label{font-size:14px;color:var(--muted);margin-top:6px}
/* pricing / token */
.pricing{background:linear-gradient(180deg,#fff8f4,#fff)}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:40px}
.price-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;transition:.28s;position:relative}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.price-card.popular{border:2px solid var(--orange);box-shadow:0 18px 44px var(--orange-glow)}
.price-card .p-tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:#fff;font-size:12px;font-weight:700;padding:5px 16px;border-radius:999px;white-space:nowrap}
.price-card h4{font-size:16px;color:var(--muted);font-weight:600}
.price-card .p-amount{font-size:38px;font-weight:900;letter-spacing:-1.5px;color:var(--ink);margin:10px 0 4px}
.price-card .p-amount small{font-size:14px;color:var(--muted);font-weight:500}
.price-card ul{list-style:none;margin:20px 0;display:flex;flex-direction:column;gap:10px}
.price-card ul li{font-size:13.5px;color:var(--ink-2);display:flex;align-items:center;gap:8px}
.price-card ul li::before{content:"✓";color:var(--orange-dark);font-weight:800}
.price-card .btn{width:100%;margin-top:6px}
.token-table-wrap{overflow-x:auto;border-radius:16px;border:1px solid var(--line)}
.token-table{width:100%;border-collapse:collapse;min-width:640px;background:#fff}
.token-table th,.token-table td{padding:14px 18px;font-size:14px;text-align:left;border-bottom:1px solid var(--line)}
.token-table thead th{background:var(--bg-soft);color:var(--orange-dark);font-weight:700}
.token-table tbody tr:hover{background:#fffaf7}
.token-table .price-down{color:#0e9f6e;font-weight:700}
/* match / form */
.match{background:#1a1d24;color:#fff}
.match .section-head h2{color:#fff}
.match .section-head p{color:rgba(255,255,255,.6)}
.match .eyebrow{background:rgba(255,90,31,.14);border-color:rgba(255,90,31,.3);color:var(--orange-light)}
.match-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px}
.match-info h3{font-size:24px;margin-bottom:16px}
.match-info p{color:rgba(255,255,255,.62);font-size:14.5px;margin-bottom:22px}
.match-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.match-list li{display:flex;gap:14px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.82)}
.match-list .mk{width:30px;height:30px;flex:0 0 30px;border-radius:9px;background:rgba(255,90,31,.16);color:var(--orange-light);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px}
.form-card{background:#fff;border-radius:20px;padding:34px}
.form-card h3{color:var(--ink);font-size:20px;margin-bottom:6px}
.form-card .form-desc{color:var(--muted);font-size:13.5px;margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field input,.field select,.field textarea{width:100%;padding:12px 15px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;transition:.2s;background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,90,31,.14)}
.field textarea{resize:vertical;min-height:100px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-card .btn{width:100%;margin-top:8px}
.form-note{font-size:12px;color:var(--muted);text-align:center;margin-top:12px}
/* reviews */
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rev-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;transition:.28s}
.rev-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.rev-top{display:flex;align-items:center;gap:13px;margin-bottom:14px}
.rev-avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;flex:0 0 46px}
.rev-meta b{font-size:14.5px;display:block}
.rev-meta span{font-size:12.5px;color:var(--muted)}
.rev-stars{color:#ff9d2e;font-size:13px;letter-spacing:2px;margin-left:auto}
.rev-card p{font-size:13.8px;color:var(--ink-2);line-height:1.75}
/* help / faq */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s}
.faq-item.open{border-color:rgba(255,90,31,.4);box-shadow:var(--shadow)}
.faq-q{width:100%;text-align:left;padding:20px 24px;background:none;border:none;font-size:15.5px;font-weight:600;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:inherit}
.faq-q .ico{width:26px;height:26px;flex:0 0 26px;border-radius:50%;background:var(--bg-soft);color:var(--orange-dark);display:flex;align-items:center;justify-content:center;font-weight:700;transition:.3s;font-size:16px}
.faq-item.open .faq-q .ico{background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--muted);font-size:14px;padding:0 24px}
.faq-item.open .faq-a{max-height:400px;padding:0 24px 20px}
/* wiki / news */
.wiki{background:var(--bg-soft)}
.wiki-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.wiki-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;transition:.25s}
.wiki-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.wiki-card .kicker{font-size:12px;font-weight:700;color:var(--orange-dark);letter-spacing:1px}
.wiki-card h4{font-size:17px;margin:8px 0 8px}
.wiki-card p{font-size:13.5px;color:var(--muted)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:40px}
.tag-cloud a,.tag-cloud span{font-size:13px;padding:7px 16px;background:#fff;border:1px solid var(--line);border-radius:999px;color:var(--ink-2);transition:.2s}
.tag-cloud a:hover{background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:#fff;border-color:transparent}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.news-item{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;transition:.25s}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(255,90,31,.3)}
.news-item .n-ico{width:44px;height:44px;flex:0 0 44px;border-radius:12px;background:var(--bg-soft);color:var(--orange-dark);display:flex;align-items:center;justify-content:center;font-weight:800}
.news-item h4{font-size:15px;margin-bottom:4px}
.news-item p{font-size:12.5px;color:var(--muted)}
/* timeline */
.timeline{max-width:880px;margin:0 auto;position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--orange),rgba(255,90,31,.15))}
.tl-item{position:relative;padding-bottom:30px}
.tl-item::before{content:"";position:absolute;left:-31px;top:4px;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--orange);box-shadow:0 0 0 4px rgba(255,90,31,.12)}
.tl-item:last-child{padding-bottom:0}
.tl-item .tl-time{font-size:12.5px;font-weight:700;color:var(--orange-dark);letter-spacing:1px}
.tl-item h4{font-size:16px;margin:4px 0 4px}
.tl-item p{font-size:13.5px;color:var(--muted)}
/* footer */
footer{background:#14161c;color:rgba(255,255,255,.7);padding:64px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px}
.foot-brand .brand{color:#fff;margin-bottom:16px}
.foot-brand p{font-size:13.5px;color:rgba(255,255,255,.55);margin-bottom:14px}
.foot-contact{list-style:none;display:flex;flex-direction:column;gap:9px;font-size:13.5px;color:rgba(255,255,255,.65)}
.foot-contact a{color:rgba(255,255,255,.75)}
.foot-contact a:hover{color:var(--orange-light)}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.foot-col ul a{font-size:13.5px;color:rgba(255,255,255,.55);transition:.2s}
.foot-col ul a:hover{color:var(--orange-light);padding-left:3px}
.foot-qr{display:flex;gap:16px;align-items:flex-start}
.foot-qr img{width:96px;height:96px;object-fit:cover;border-radius:10px;background:#fff;padding:4px}
.foot-qr .qr-txt{font-size:12.5px;color:rgba(255,255,255,.55);line-height:1.8}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;font-size:12.5px;color:rgba(255,255,255,.4)}
.foot-friend{display:flex;flex-wrap:wrap;gap:8px 16px;margin-bottom:20px}
.foot-friend a{font-size:12.5px;color:rgba(255,255,255,.45)}
.foot-friend a:hover{color:var(--orange-light)}
/* float */
.float-dock{position:fixed;right:22px;bottom:26px;z-index:900;display:flex;flex-direction:column;gap:12px}
.float-btn{width:52px;height:52px;border-radius:50%;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow);transition:.25s;color:var(--orange-dark);position:relative}
.float-btn:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);background:var(--orange);color:#fff}
.float-btn svg{width:24px;height:24px}
.float-btn.primary{background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:#fff;border:none}
.float-pop{position:absolute;right:64px;bottom:0;background:#fff;border-radius:14px;padding:14px;box-shadow:var(--shadow-lg);display:none;width:170px;text-align:center;border:1px solid var(--line)}
.float-pop.show{display:block}
.float-pop img{width:130px;height:130px;object-fit:cover;margin:0 auto 8px;border-radius:8px}
.float-pop span{font-size:12px;color:var(--muted);display:block}
.back-top{opacity:0;pointer-events:none}
.back-top.show{opacity:1;pointer-events:auto}
/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
/* responsive */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-panel{max-width:560px}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .svc-grid,.sol-grid,.case-grid,.rev-grid,.price-grid,.net-map{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr);gap:24px}
  .steps::before{display:none}
  .match-grid{grid-template-columns:1fr;gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .wiki-grid,.news-grid{grid-template-columns:1fr}
}
@media(max-width:820px){
  .nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:12px 16px;box-shadow:var(--shadow-lg);border-bottom:1px solid var(--line);gap:0}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 14px;border-bottom:1px solid var(--line)}
  .nav-links li:last-child a{border-bottom:none}
  .menu-toggle{display:flex}
  .nav-cta .btn-ghost{display:none}
  .metrics{transform:none;padding:30px 0 0}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:22px;padding:26px 20px}
  section{padding:60px 0}
  .hero{padding:50px 0 60px}
}
@media(max-width:640px){
  .container{padding:0 18px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .svc-grid,.sol-grid,.case-grid,.rev-grid,.price-grid,.net-map,.scene-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .about-points{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .rating-banner{padding:22px}
  .float-dock{right:14px;bottom:18px}
  .float-pop{right:60px}
  .form-card{padding:24px}
  .section-head{margin-bottom:34px}
}