*{margin:0;padding:0;box-sizing:border-box}
:root{
--blue:#1a4fd6;
--blue-deep:#0e3399;
--blue-bright:#2f6bff;
--blue-soft:#e8efff;
--ink:#111a2e;
--ink-2:#3a4663;
--ink-3:#6b7794;
--line:#dde5f5;
--bg:#f5f8ff;
--white:#ffffff;
--gold:#f6a723;
}
html{scroll-behavior:smooth}
body{
font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
background:var(--bg);
color:var(--ink);
line-height:1.7;
-webkit-font-smoothing:antialiased;
overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}

/* ===== HEADER ===== */
.site-header{
position:sticky;top:0;z-index:100;
background:rgba(255,255,255,.94);
backdrop-filter:blur(12px);
border-bottom:1px solid var(--line);
}
.nav-wrap{
max-width:1200px;margin:0 auto;padding:0 24px;
display:flex;align-items:center;justify-content:space-between;
min-height:68px;gap:16px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{height:34px;width:auto;max-width:140px;object-fit:contain}
.brand-text{font-size:19px;font-weight:800;color:var(--blue-deep);letter-spacing:.5px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.nav-links a{
display:block;padding:8px 13px;font-size:14.5px;color:var(--ink-2);
font-weight:500;border-radius:8px;transition:color .2s,background .2s;
white-space:nowrap;
}
.nav-links a:hover{color:var(--blue);background:var(--blue-soft)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn{
display:inline-flex;align-items:center;justify-content:center;gap:6px;
padding:11px 22px;border-radius:10px;font-size:14.5px;font-weight:700;
border:none;cursor:pointer;transition:transform .18s,box-shadow .22s,background .2s;
white-space:nowrap;font-family:inherit;
}
.btn-primary{
background:linear-gradient(120deg,var(--blue-bright),var(--blue));
color:#fff;
box-shadow:0 6px 18px rgba(26,79,214,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(26,79,214,.36)}
.btn-ghost{
background:var(--white);color:var(--blue);border:1.5px solid var(--blue);
}
.btn-ghost:hover{background:var(--blue-soft);transform:translateY(-2px)}
.menu-toggle{
display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
background:var(--white);cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.menu-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.active span:nth-child(2){opacity:0}
.menu-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== HERO ===== */
.hero{
position:relative;overflow:hidden;
background:linear-gradient(140deg,#0a2a7a 0%,#1a4fd6 48%,#2f6bff 100%);
color:#fff;padding:80px 0 88px;
}
.hero::before{
content:"";position:absolute;inset:0;
background-image:radial-gradient(circle at 18% 22%,rgba(255,255,255,.16),transparent 42%),
radial-gradient(circle at 82% 70%,rgba(120,180,255,.28),transparent 46%);
pointer-events:none;
}
.hero-grid{
position:absolute;inset:0;
background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
background-size:56px 56px;
mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 88%);
-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 88%);
pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:0 24px}
.hero-badge{
display:inline-flex;align-items:center;gap:8px;
padding:7px 16px;border-radius:999px;
background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.32);
font-size:13px;font-weight:600;letter-spacing:.4px;margin-bottom:24px;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:#7dffb0;box-shadow:0 0 10px #7dffb0;display:block}
.hero h1{
font-size:46px;line-height:1.22;font-weight:900;letter-spacing:-.5px;
margin-bottom:20px;max-width:880px;
}
.hero h1 em{
font-style:normal;
color:#ffd76a;
}
.hero-sub{
font-size:17px;line-height:1.85;color:rgba(255,255,255,.88);
max-width:720px;margin-bottom:34px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:52px}
.hero-cta .btn{padding:15px 32px;font-size:16px;border-radius:12px}
.btn-hero-main{
background:#fff;color:var(--blue-deep);
box-shadow:0 10px 30px rgba(0,0,0,.22);
}
.btn-hero-main:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(0,0,0,.3)}
.btn-hero-ghost{
background:rgba(255,255,255,.1);color:#fff;border:1.5px solid rgba(255,255,255,.5);
}
.btn-hero-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-3px)}
.hero-stats{
display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
padding-top:34px;border-top:1px solid rgba(255,255,255,.2);
}
.hero-stat-num{
font-size:30px;font-weight:900;letter-spacing:-.5px;
color:#fff;line-height:1.2;
}
.hero-stat-num span{font-size:16px;font-weight:700;margin-left:2px;color:#ffd76a}
.hero-stat-label{font-size:13px;color:rgba(255,255,255,.78);margin-top:4px}

/* ===== SECTION BASE ===== */
.section{padding:76px 0}
.section.alt{background:var(--white)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 48px}
.sec-eyebrow{
display:inline-block;font-size:13px;font-weight:800;letter-spacing:2px;
color:var(--blue);text-transform:uppercase;margin-bottom:12px;
padding:4px 14px;border-radius:6px;background:var(--blue-soft);
}
.sec-title{
font-size:34px;font-weight:900;color:var(--ink);line-height:1.3;
letter-spacing:-.4px;margin-bottom:14px;
}
.sec-desc{font-size:15.5px;color:var(--ink-3);line-height:1.85}

/* ===== ABOUT ===== */
.about-grid{
display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:stretch;
}
.about-main{
background:var(--white);border-radius:20px;padding:38px 36px;
border:1px solid var(--line);
box-shadow:0 8px 30px rgba(26,79,214,.06);
}
.about-main h3{font-size:23px;font-weight:800;color:var(--ink);margin-bottom:16px}
.about-main p{font-size:15px;color:var(--ink-2);line-height:1.9;margin-bottom:14px}
.about-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
.about-tags span{
font-size:13px;padding:6px 14px;border-radius:999px;
background:var(--blue-soft);color:var(--blue-deep);font-weight:600;
}
.about-side{display:flex;flex-direction:column;gap:16px}
.cap-item{
background:var(--white);border:1px solid var(--line);border-radius:16px;
padding:22px 24px;flex:1;display:flex;flex-direction:column;gap:6px;
transition:transform .22s,box-shadow .22s,border-color .22s;
}
.cap-item:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(26,79,214,.1);border-color:#b9cdff}
.cap-item h4{font-size:16px;font-weight:800;color:var(--blue-deep)}
.cap-item p{font-size:13.5px;color:var(--ink-3);line-height:1.7}

/* ===== SERVICES ===== */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc-card{
background:var(--white);border:1px solid var(--line);border-radius:18px;
padding:28px 26px;transition:transform .24s,box-shadow .24s,border-color .24s;
position:relative;overflow:hidden;
}
.svc-card::after{
content:"";position:absolute;left:0;top:0;height:3px;width:0;
background:linear-gradient(90deg,var(--blue-bright),#7dffb0);
transition:width .3s;
}
.svc-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(26,79,214,.12);border-color:#b9cdff}
.svc-card:hover::after{width:100%}
.svc-ico{
width:48px;height:48px;border-radius:13px;
background:linear-gradient(135deg,var(--blue-bright),var(--blue));
display:flex;align-items:center;justify-content:center;
color:#fff;font-weight:900;font-size:18px;margin-bottom:18px;
box-shadow:0 6px 16px rgba(26,79,214,.28);
}
.svc-card h3{font-size:17.5px;font-weight:800;color:var(--ink);margin-bottom:9px}
.svc-card p{font-size:14px;color:var(--ink-3);line-height:1.8}

/* ===== SCENES ===== */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.scene-chip{
background:var(--white);border:1px solid var(--line);border-radius:13px;
padding:16px 18px;font-size:14px;font-weight:600;color:var(--ink-2);
display:flex;align-items:flex-start;gap:10px;
transition:transform .2s,border-color .2s,background .2s,box-shadow .2s;
}
.scene-chip:hover{transform:translateY(-3px);border-color:var(--blue);background:#f2f6ff;box-shadow:0 8px 20px rgba(26,79,214,.1)}
.scene-chip i{
width:6px;height:6px;border-radius:50%;background:var(--blue);
margin-top:8px;flex-shrink:0;
}
.scene-chip span{color:var(--blue-deep)}

/* ===== MODELS ===== */
.model-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:1000px;margin:0 auto}
.model-pill{
padding:8px 18px;border-radius:999px;font-size:13.5px;font-weight:600;
background:var(--white);border:1px solid var(--line);color:var(--ink-2);
transition:.2s;cursor:default;
}
.model-pill:hover{background:var(--blue);color:#fff;border-color:var(--blue);transform:translateY(-2px)}

/* ===== PROCESS ===== */
.process{
display:grid;grid-template-columns:repeat(5,1fr);gap:0;
background:var(--white);border:1px solid var(--line);border-radius:20px;
overflow:hidden;
}
.step{
padding:32px 22px;border-right:1px solid var(--line);position:relative;
transition:background .25s;
}
.step:last-child{border-right:none}
.step:hover{background:#f7faff}
.step-num{
font-size:13px;font-weight:900;color:#fff;background:var(--blue);
width:34px;height:34px;border-radius:10px;
display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.step h4{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:8px}
.step p{font-size:13px;color:var(--ink-3);line-height:1.7}

/* ===== NETWORK ===== */
.net-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.net-card{
background:linear-gradient(160deg,#fff,#f3f7ff);
border:1px solid var(--line);border-radius:16px;padding:26px 24px;
transition:transform .22s,box-shadow .22s;
}
.net-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(26,79,214,.1)}
.net-card h4{font-size:16.5px;font-weight:800;color:var(--blue-deep);margin-bottom:10px}
.net-card p{font-size:14px;color:var(--ink-3);line-height:1.8}

/* ===== CASE ===== */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.case-card{
background:var(--white);border:1px solid var(--line);border-radius:18px;
overflow:hidden;transition:transform .24s,box-shadow .24s;
}
.case-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(26,79,214,.14)}
.case-media{width:100%;aspect-ratio:16/9;overflow:hidden;background:#eef3ff}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.case-card:hover .case-media img{transform:scale(1.04)}
.case-body{padding:22px 24px 26px}
.case-body h3{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:8px}
.case-body p{font-size:14px;color:var(--ink-3);line-height:1.8}

/* ===== BANNERS ===== */
.banner-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.banner-strip figure{
border-radius:14px;overflow:hidden;background:var(--white);
border:1px solid var(--line);aspect-ratio:4/3;
}
.banner-strip img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.banner-strip figure:hover img{transform:scale(1.05)}

/* ===== RATING ===== */
.rating-hero{
background:linear-gradient(135deg,#0e3399,#1a4fd6 55%,#2f6bff);
border-radius:22px;padding:44px 40px;color:#fff;
display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
margin-bottom:36px;position:relative;overflow:hidden;
}
.rating-hero::after{
content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
border-radius:50%;background:rgba(255,255,255,.08);
}
.rating-hero h3{font-size:26px;font-weight:900;margin-bottom:10px}
.rating-hero p{font-size:15px;color:rgba(255,255,255,.86);line-height:1.85;max-width:560px}
.rating-score{text-align:center;position:relative;z-index:2;flex-shrink:0}
.rating-score .num{font-size:56px;font-weight:900;line-height:1;color:#ffd76a;letter-spacing:-2px}
.rating-score .den{font-size:15px;color:rgba(255,255,255,.8);margin-top:6px}
.rating-stars{color:#ffd76a;font-size:18px;letter-spacing:3px;margin-top:8px}
.compare-table-wrap{
background:var(--white);border:1px solid var(--line);border-radius:18px;
overflow:hidden;
}
.compare-table{width:100%;border-collapse:collapse;font-size:14.5px}
.compare-table thead th{
background:var(--blue-soft);color:var(--blue-deep);font-weight:800;
padding:16px 20px;text-align:left;font-size:14px;white-space:nowrap;
}
.compare-table thead th:last-child{color:var(--blue)}
.compare-table tbody td{
padding:15px 20px;border-top:1px solid var(--line);color:var(--ink-2);
}
.compare-table tbody td:first-child{font-weight:700;color:var(--ink)}
.compare-table tbody td:last-child{color:var(--blue-deep);font-weight:600;background:#f8faff}
.compare-table tbody tr:hover td{background:#f8faff}
.compare-table tbody tr:hover td:last-child{background:#eef4ff}

/* ===== REVIEWS ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{
background:var(--white);border:1px solid var(--line);border-radius:16px;
padding:26px 24px;display:flex;flex-direction:column;gap:14px;
transition:transform .22s,box-shadow .22s;
}
.review-card:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(26,79,214,.1)}
.review-stars{color:var(--gold);font-size:15px;letter-spacing:2px}
.review-text{font-size:14.5px;color:var(--ink-2);line-height:1.85;flex:1}
.review-user{display:flex;align-items:center;gap:12px;padding-top:14px;border-top:1px solid var(--line)}
.review-avatar{
width:42px;height:42px;border-radius:50%;flex-shrink:0;
background:linear-gradient(135deg,var(--blue-bright),var(--blue));
color:#fff;display:flex;align-items:center;justify-content:center;
font-weight:800;font-size:16px;
}
.review-user strong{display:block;font-size:14px;color:var(--ink)}
.review-user small{font-size:12.5px;color:var(--ink-3)}

/* ===== TOKEN ===== */
.token-wrap{
background:var(--white);border:1px solid var(--line);border-radius:18px;
overflow:hidden;
}
.token-table{width:100%;border-collapse:collapse;font-size:14.5px}
.token-table thead th{
background:var(--blue-deep);color:#fff;font-weight:700;
padding:15px 20px;text-align:left;font-size:13.5px;white-space:nowrap;
}
.token-table tbody td{padding:14px 20px;border-top:1px solid var(--line);color:var(--ink-2)}
.token-table tbody td:first-child{font-weight:700;color:var(--ink)}
.token-table tbody td.saving{color:#0a9a5e;font-weight:800}
.token-note{font-size:13px;color:var(--ink-3);margin-top:14px;text-align:center}

/* ===== FORM ===== */
.form-section{
background:linear-gradient(160deg,#0e3399,#1a4fd6 60%,#2f6bff);
border-radius:24px;padding:52px 44px;color:#fff;position:relative;overflow:hidden;
}
.form-section::before{
content:"";position:absolute;left:-80px;bottom:-80px;width:280px;height:280px;
border-radius:50%;background:rgba(255,255,255,.07);
}
.form-inner{position:relative;z-index:2;display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.form-copy h2{font-size:30px;font-weight:900;line-height:1.3;margin-bottom:16px}
.form-copy p{font-size:15px;color:rgba(255,255,255,.86);line-height:1.9;margin-bottom:24px}
.form-contact-list{display:flex;flex-direction:column;gap:12px}
.form-contact-list li{
display:flex;align-items:center;gap:10px;font-size:14px;
color:rgba(255,255,255,.9);
}
.form-contact-list li b{color:#ffd76a;font-weight:800;min-width:64px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .full{grid-column:1/-1}
.field label{
display:block;font-size:13px;font-weight:600;margin-bottom:7px;
color:rgba(255,255,255,.9);
}
.field input,.field select,.field textarea{
width:100%;padding:12px 15px;border-radius:10px;border:1px solid rgba(255,255,255,.3);
background:rgba(255,255,255,.95);color:var(--ink);font-size:14px;
font-family:inherit;outline:none;transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
border-color:#ffd76a;box-shadow:0 0 0 3px rgba(255,215,106,.3);
}
.field textarea{resize:vertical;min-height:96px}
.form-submit{
grid-column:1/-1;
display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:4px;
}
.btn-form{
background:#ffd76a;color:#0e3399;font-weight:800;padding:14px 38px;
border-radius:12px;font-size:15.5px;box-shadow:0 8px 22px rgba(255,215,106,.3);
}
.btn-form:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,215,106,.42)}
.form-tip{font-size:12.5px;color:rgba(255,255,255,.72);flex:1;min-width:180px}
.form-msg{grid-column:1/-1;font-size:13.5px;color:#7dffb0;font-weight:600;display:none}
.form-msg.show{display:block}

/* ===== FAQ ===== */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
background:var(--white);border:1px solid var(--line);border-radius:13px;
overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq-item.open{border-color:#b9cdff;box-shadow:0 8px 24px rgba(26,79,214,.08)}
.faq-q{
width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
padding:19px 24px;background:none;border:none;cursor:pointer;
font-size:15.5px;font-weight:700;color:var(--ink);text-align:left;
font-family:inherit;transition:color .2s;
}
.faq-q:hover{color:var(--blue)}
.faq-icon{
width:26px;height:26px;border-radius:50%;flex-shrink:0;
background:var(--blue-soft);color:var(--blue);font-size:16px;font-weight:800;
display:flex;align-items:center;justify-content:center;transition:transform .25s,background .25s,color .25s;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--blue);color:#fff}
.faq-a{
max-height:0;overflow:hidden;transition:max-height .32s ease;
}
.faq-a p{
padding:0 24px 20px;font-size:14.5px;color:var(--ink-3);line-height:1.85;
}

/* ===== ARTICLES ===== */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.article-card{
background:var(--white);border:1px solid var(--line);border-radius:16px;
padding:26px 24px;transition:transform .22s,box-shadow .22s,border-color .22s;
display:flex;flex-direction:column;gap:12px;
}
.article-card:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(26,79,214,.1);border-color:#b9cdff}
.article-tag{
align-self:flex-start;font-size:12px;font-weight:800;color:var(--blue);
background:var(--blue-soft);padding:4px 12px;border-radius:6px;letter-spacing:.5px;
}
.article-card h3{font-size:16.5px;font-weight:800;color:var(--ink);line-height:1.5}
.article-card p{font-size:13.5px;color:var(--ink-3);line-height:1.75;flex:1}
.article-link{font-size:13.5px;font-weight:700;color:var(--blue);display:inline-flex;align-items:center;gap:5px}
.article-link::after{content:"→";transition:transform .2s}
.article-card:hover .article-link::after{transform:translateX(4px)}

/* ===== FRIEND LINKS ===== */
.flinks{
display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
max-width:960px;margin:0 auto;
}
.flinks a{
font-size:13.5px;color:var(--ink-2);padding:8px 18px;border-radius:999px;
background:var(--white);border:1px solid var(--line);transition:.2s;
}
.flinks a:hover{background:var(--blue);color:#fff;border-color:var(--blue);transform:translateY(-2px)}

/* ===== FOOTER ===== */
.site-footer{
background:#0a1a3d;color:#c3d0ec;padding:56px 0 0;
}
.footer-main{
display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{display:flex;flex-direction:column;gap:14px}
.footer-brand .brand-text{color:#fff;font-size:20px}
.footer-brand img{height:32px;width:auto;max-width:130px;object-fit:contain}
.footer-brand p{font-size:13.5px;color:#8fa3c9;line-height:1.8}
.footer-contact{display:flex;flex-direction:column;gap:7px;font-size:13.5px;color:#8fa3c9}
.footer-contact b{color:#c3d0ec;font-weight:600}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:#8fa3c9;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-copy{
padding:24px 0;text-align:center;font-size:13px;color:#6f83a8;
display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px 18px;
}
.footer-copy a{color:#8fa3c9}
.footer-copy a:hover{color:#fff}

/* ===== FLOAT ===== */
.float-stack{
position:fixed;right:20px;bottom:24px;z-index:90;
display:flex;flex-direction:column;gap:10px;
}
.float-btn{
width:50px;height:50px;border-radius:14px;
background:var(--white);border:1px solid var(--line);
display:flex;align-items:center;justify-content:center;
cursor:pointer;box-shadow:0 6px 20px rgba(10,26,61,.14);
transition:transform .2s,box-shadow .2s,background .2s;
color:var(--blue);font-weight:800;font-size:13px;font-family:inherit;
}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(26,79,214,.24)}
.float-btn.primary{background:var(--blue);color:#fff;border-color:var(--blue)}
.float-btn svg{width:22px;height:22px;fill:currentColor}
.back-top{opacity:0;pointer-events:none;transition:opacity .25s}
.back-top.show{opacity:1;pointer-events:auto}

/* ===== QR MODAL ===== */
.qr-modal{
position:fixed;inset:0;z-index:200;background:rgba(10,26,61,.6);
display:flex;align-items:center;justify-content:center;padding:24px;
opacity:0;pointer-events:none;transition:opacity .25s;
}
.qr-modal.show{opacity:1;pointer-events:auto}
.qr-box{
background:#fff;border-radius:18px;padding:30px;max-width:320px;width:100%;
text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.3);
transform:scale(.94);transition:transform .25s;
}
.qr-modal.show .qr-box{transform:scale(1)}
.qr-box h4{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:6px}
.qr-box p{font-size:13px;color:var(--ink-3);margin-bottom:16px}
.qr-box img{width:200px;height:200px;object-fit:contain;margin:0 auto 16px;border-radius:10px;border:1px solid var(--line)}
.qr-box .btn{width:100%}

/* ===== REVEAL ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s cubic-bezier(.22,1,.36,1),transform .6s cubic-bezier(.22,1,.36,1)}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
.reveal{opacity:1;transform:none;transition:none}
html{scroll-behavior:auto}
}

/* ===== RESPONSIVE ===== */
@media (max-width:1080px){
.nav-links{display:none}
.menu-toggle{display:flex}
.nav-actions .btn-ghost{display:none}
.hero h1{font-size:38px}
.svc-grid{grid-template-columns:repeat(2,1fr)}
.scene-grid{grid-template-columns:repeat(3,1fr)}
.process{grid-template-columns:repeat(3,1fr)}
.step:nth-child(3){border-right:none}
.step:nth-child(4),.step:nth-child(5){border-top:1px solid var(--line)}
.banner-strip{grid-template-columns:repeat(2,1fr)}
.review-grid{grid-template-columns:repeat(2,1fr)}
.article-grid{grid-template-columns:repeat(2,1fr)}
.footer-main{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:900px){
.about-grid{grid-template-columns:1fr}
.rating-hero{grid-template-columns:1fr;text-align:center;padding:36px 26px}
.rating-score{margin:0 auto}
.form-inner{grid-template-columns:1fr;gap:32px}
.compare-table-wrap{overflow-x:auto}
.compare-table{min-width:620px}
.token-wrap{overflow-x:auto}
.token-table{min-width:600px}
}
@media (max-width:768px){
.nav-links{
position:absolute;top:68px;left:0;right:0;
background:#fff;flex-direction:column;align-items:stretch;
padding:12px 20px 20px;gap:2px;
border-bottom:1px solid var(--line);
box-shadow:0 16px 30px rgba(10,26,61,.1);
display:none;
}
.nav-links.open{display:flex}
.nav-links a{padding:11px 14px;font-size:15px}
.nav-actions .btn-primary{padding:9px 16px;font-size:13.5px}
.hero{padding:56px 0 64px}
.hero h1{font-size:30px;line-height:1.3}
.hero-sub{font-size:15px}
.hero-cta .btn{padding:13px 24px;font-size:14.5px;flex:1;min-width:140px}
.hero-stats{grid-template-columns:repeat(2,1fr);gap:22px}
.hero-stat-num{font-size:26px}
.section{padding:54px 0}
.sec-title{font-size:26px}
.sec-head{margin-bottom:34px}
.svc-grid{grid-template-columns:1fr}
.scene-grid{grid-template-columns:repeat(2,1fr)}
.process{grid-template-columns:1fr}
.step{border-right:none!important;border-top:1px solid var(--line)}
.step:first-child{border-top:none}
.net-grid{grid-template-columns:1fr}
.case-grid{grid-template-columns:1fr}
.review-grid{grid-template-columns:1fr}
.article-grid{grid-template-columns:1fr}
.form-section{padding:36px 24px;border-radius:18px}
.form-copy h2{font-size:24px}
.form-grid{grid-template-columns:1fr}
.footer-main{grid-template-columns:1fr;gap:28px}
.footer-copy{flex-direction:column;gap:6px}
.about-main{padding:28px 24px}
.banner-strip{grid-template-columns:1fr}
.float-stack{right:14px;bottom:16px}
.float-btn{width:46px;height:46px}
}
@media (max-width:420px){
.hero h1{font-size:26px}
.hero-stats{grid-template-columns:1fr 1fr}
.scene-grid{grid-template-columns:1fr}
}