:root{
  --red:#d61f26;
  --red-deep:#a8121a;
  --red-light:#fdeceb;
  --ink:#1c1c22;
  --ink-2:#454551;
  --ink-3:#7a7a87;
  --line:#efe1e1;
  --bg:#fffaf8;
  --card:#ffffff;
  --gold:#c99a4a;
  --radius:16px;
  --shadow:0 10px 30px rgba(168,18,26,.08);
  --shadow-hover:0 16px 42px rgba(168,18,26,.16);
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:76px 0;position:relative}
.section-tight{padding:54px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--red);text-transform:uppercase;
  padding:6px 14px;border-radius:999px;
  background:var(--red-light);border:1px solid #f7d3d1;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--red)}
h2.section-title{
  font-size:clamp(24px,3.4vw,38px);
  line-height:1.25;letter-spacing:-.01em;font-weight:800;color:var(--ink);
  margin-bottom:14px;
}
.section-desc{color:var(--ink-3);font-size:16px;max-width:720px}
.section-head{margin-bottom:44px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1;
  padding:15px 30px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,var(--red),var(--red-deep));color:#fff;box-shadow:0 10px 24px rgba(168,18,26,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(168,18,26,.36)}
.btn-ghost{background:#fff;color:var(--red);border-color:#f0c9c7}
.btn-ghost:hover{background:var(--red-light);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(28,28,34,.24)}
.btn:active{transform:translateY(0) scale(.985)}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,250,248,.94);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(168,18,26,.08)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:70px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{max-height:40px;width:auto}
.brand-name{font-weight:800;font-size:18px;color:var(--ink);letter-spacing:.02em}
.brand-name small{display:block;font-size:11px;font-weight:600;color:var(--red);letter-spacing:.18em}
.nav-wrap{display:flex;align-items:center;gap:10px}
.nav-links{display:flex;align-items:center;gap:0}
.nav-links a{
  font-size:14.5px;font-weight:600;color:var(--ink-2);
  padding:9px 13px;border-radius:8px;transition:color .2s,background .2s;
  position:relative;
}
.nav-links a:hover{color:var(--red);background:var(--red-light)}
.header-cta{display:flex;align-items:center;gap:10px}
.header-cta .btn{padding:11px 20px;font-size:14px}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.burger span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:10px 0 18px;
}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:12px 4px;font-size:15px;font-weight:600;color:var(--ink-2);border-bottom:1px dashed var(--line)}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu .mobile-cta{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.mobile-menu .btn{width:100%}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1000px 520px at 88% -6%, rgba(214,31,38,.16), transparent 62%),
    radial-gradient(760px 460px at -6% 20%, rgba(201,154,74,.16), transparent 60%),
    linear-gradient(180deg,#fff8f6 0%,#fffaf8 62%,#fff5f2 100%);
  padding:76px 0 68px;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(214,31,38,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(214,31,38,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse at 50% 30%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 30%,#000 30%,transparent 78%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;background:#fff;
  border:1px solid #f4cfcc;border-radius:999px;padding:8px 16px;
  font-size:13px;font-weight:700;color:var(--red-deep);
  box-shadow:0 6px 18px rgba(168,18,26,.08);margin-bottom:22px;
}
.hero-badge i{width:8px;height:8px;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px rgba(214,31,38,.16);animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(214,31,38,.16)}50%{box-shadow:0 0 0 8px rgba(214,31,38,.05)}}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.16;letter-spacing:-.02em;font-weight:900;
  color:var(--ink);margin-bottom:22px;
}
.hero h1 .hl{
  color:var(--red);position:relative;display:inline-block;
}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:10px;
  background:rgba(214,31,38,.14);border-radius:6px;z-index:-1;
}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px}
.hero-chips span{
  font-size:13px;font-weight:600;color:var(--ink-2);background:#fff;
  border:1px solid var(--line);border-radius:999px;padding:7px 14px;
  transition:transform .25s ease,border-color .25s,color .25s;
}
.hero-chips span:hover{transform:translateY(-2px);border-color:#f0c9c7;color:var(--red)}

.hero-panel{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:22px;
  padding:26px;box-shadow:var(--shadow);
}
.hero-panel::before{
  content:"";position:absolute;top:-1px;left:26px;right:26px;height:4px;border-radius:0 0 8px 8px;
  background:linear-gradient(90deg,var(--red),var(--gold));
}
.hero-panel-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.hero-panel-title h3{font-size:16px;font-weight:800;color:var(--ink)}
.hero-panel-title em{font-style:normal;font-size:12px;font-weight:700;color:var(--red);background:var(--red-light);padding:4px 10px;border-radius:999px}
.hero-stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat-cell{
  background:linear-gradient(180deg,#fff,#fff7f6);border:1px solid var(--line);
  border-radius:14px;padding:16px 14px;text-align:left;
  transition:transform .25s ease,box-shadow .25s ease;
}
.stat-cell:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(168,18,26,.09)}
.stat-num{font-size:26px;font-weight:900;color:var(--red);line-height:1.1;letter-spacing:-.02em}
.stat-label{font-size:12.5px;color:var(--ink-3);margin-top:4px;font-weight:600}
.hero-note{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);
  display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);
}
.hero-note b{color:var(--red);font-weight:800}

/* ===== Stats band ===== */
.stats-band{background:#fff;border-bottom:1px solid var(--line)}
.stats-band-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:34px 0}
.stat-item{text-align:center;padding:18px 12px;border-radius:14px;transition:background .25s}
.stat-item:hover{background:var(--bg)}
.stat-item .k{font-size:clamp(22px,3vw,32px);font-weight:900;color:var(--red);letter-spacing:-.02em}
.stat-item .v{font-size:13.5px;color:var(--ink-3);font-weight:600;margin-top:4px}

/* ===== About ===== */
.about-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:start}
.about-copy p{color:var(--ink-2);margin-bottom:14px}
.about-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.about-list li{
  display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--ink-2);font-weight:600;
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;
}
.about-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:3px;border-radius:6px;
  background:var(--red-light);border:1px solid #f3c8c6;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23d61f26' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size:12px;background-repeat:no-repeat;background-position:center;
}
.about-visual{
  background:linear-gradient(160deg,#fff4f2,#ffeceb 55%,#fff8f4);
  border:1px solid #f6d5d2;border-radius:22px;padding:26px;box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.about-visual::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(214,31,38,.18),transparent 70%);
}
.about-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px;position:relative;z-index:2}
.about-tags span{
  font-size:13px;font-weight:700;color:var(--red-deep);
  background:#fff;border:1px solid #f4cfcc;border-radius:999px;padding:7px 13px;
}
.about-model-box{position:relative;z-index:2}
.about-model-box h3{font-size:15px;font-weight:800;color:var(--ink);margin-bottom:12px}
.model-cloud{display:flex;flex-wrap:wrap;gap:8px}
.model-cloud i{
  font-style:normal;font-size:12.5px;font-weight:600;color:var(--ink-2);
  background:#fff;border:1px solid #f1dedd;border-radius:8px;padding:6px 10px;
  transition:transform .2s,color .2s,border-color .2s;
}
.model-cloud i:hover{transform:translateY(-2px);color:var(--red);border-color:#f0c9c7}

/* ===== Services ===== */
.services{background:linear-gradient(180deg,#fff,#fff8f6 60%,#fff)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.service-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s;
  position:relative;overflow:hidden;
}
.service-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--red),var(--gold));transition:width .35s ease;
}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:#f4cfcc}
.service-card:hover::before{width:100%}
.service-icon{
  width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--red-light),#ffe4e2);border:1px solid #f6d3d1;
  margin-bottom:16px;font-size:22px;
}
.service-card h3{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:8px}
.service-card p{font-size:14px;color:var(--ink-3);line-height:1.72}
.service-card .tag{
  display:inline-block;margin-top:14px;font-size:12px;font-weight:700;color:var(--red);
  background:var(--red-light);border-radius:6px;padding:4px 9px;
}

/* ===== One-stop process ===== */
.onestop{background:linear-gradient(180deg,#fff6f4,#fffaf8);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.flow-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;
  position:relative;transition:transform .3s,box-shadow .3s;overflow:hidden;
}
.flow-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.flow-num{
  font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--red);
  background:var(--red-light);border-radius:6px;padding:4px 9px;display:inline-block;margin-bottom:14px;
}
.flow-card h3{font-size:16px;font-weight:800;margin-bottom:8px;color:var(--ink)}
.flow-card p{font-size:13.5px;color:var(--ink-3)}
.flow-card::after{
  content:"";position:absolute;right:-18px;bottom:-18px;width:76px;height:76px;border-radius:50%;
  background:radial-gradient(circle,rgba(214,31,38,.1),transparent 72%);
}

/* ===== Industry / scenarios ===== */
.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.scenario-chip{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 14px;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.scenario-chip:hover{transform:translateY(-4px);border-color:#f4cfcc;box-shadow:var(--shadow)}
.scenario-chip strong{display:block;font-size:14px;color:var(--ink);margin-bottom:4px}
.scenario-chip span{font-size:12.5px;color:var(--ink-3);line-height:1.6;display:block}

/* ===== Network ===== */
.network{background:linear-gradient(180deg,#fff,#fff6f3);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.network-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.network-cities{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
.city{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center;
  font-size:14px;font-weight:700;color:var(--ink-2);transition:transform .25s,color .25s,border-color .25s;
}
.city:hover{transform:translateY(-3px);color:var(--red);border-color:#f0c9c7}
.network-side{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:var(--shadow)}
.network-side h3{font-size:18px;font-weight:800;margin-bottom:16px}
.network-side ul li{display:flex;gap:10px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--ink-2)}
.network-side ul li:last-child{border-bottom:none}
.network-side ul li b{color:var(--red);flex:0 0 auto;font-weight:800}

/* ===== Comparison ===== */
.compare{background:linear-gradient(180deg,#fff8f6,#fff)}
.score-card{
  background:linear-gradient(135deg,#fff,#fff3f1 70%);border:1px solid #f4cfcc;border-radius:22px;
  padding:28px;box-shadow:var(--shadow);display:flex;flex-wrap:wrap;align-items:center;gap:26px;margin-bottom:30px;
}
.score-main{display:flex;align-items:baseline;gap:10px}
.score-main .num{font-size:clamp(38px,6vw,58px);font-weight:900;color:var(--red);line-height:1;letter-spacing:-.03em}
.score-main .total{font-size:17px;font-weight:700;color:var(--ink-3)}
.stars{font-size:22px;color:var(--gold);letter-spacing:4px;line-height:1}
.score-meta{flex:1;min-width:200px}
.score-meta h3{font-size:19px;font-weight:800;margin-bottom:6px}
.score-meta p{font-size:14px;color:var(--ink-3)}
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;
  box-shadow:var(--shadow);-webkit-overflow-scrolling:touch;
}
table{width:100%;border-collapse:collapse;min-width:680px}
thead th{
  background:linear-gradient(135deg,var(--red),var(--red-deep));color:#fff;
  font-size:14px;font-weight:700;padding:15px 18px;text-align:left;white-space:nowrap;
}
thead th:first-child{border-radius:0}
tbody td{padding:14px 18px;font-size:14px;color:var(--ink-2);border-bottom:1px solid #f8efee}
tbody tr:last-child td{border-bottom:none}
tbody tr{transition:background .2s}
tbody tr:hover{background:#fffaf9}
tbody td:first-child{font-weight:700;color:var(--ink)}
.badge-yes{color:var(--red);font-weight:800}
.badge-no{color:#9a9aa5}

/* ===== Reviews ===== */
.reviews{background:linear-gradient(180deg,#fff6f3,#fffaf8);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;
  transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column;
}
.review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.review-stars{color:var(--gold);font-size:15px;letter-spacing:3px;margin-bottom:12px}
.review-text{font-size:14px;color:var(--ink-2);line-height:1.78;flex:1}
.review-user{display:flex;align-items:center;gap:11px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
.avatar{
  width:38px;height:38px;border-radius:50%;flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--red-light),#ffe2e0);color:var(--red-deep);font-weight:800;font-size:15px;
  border:1px solid #f6d3d1;
}
.review-user .uname{font-size:14px;font-weight:800;color:var(--ink)}
.review-user .urole{font-size:12px;color:var(--ink-3)}

/* ===== Cases ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .3s,box-shadow .3s;
}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.case-media{position:relative;background:#fff5f3;aspect-ratio:16/10;overflow:hidden}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.case-card:hover .case-media img{transform:scale(1.04)}
.case-body{padding:20px}
.case-body h3{font-size:16px;font-weight:800;margin-bottom:6px}
.case-body p{font-size:13.5px;color:var(--ink-3)}
.case-body .case-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.case-body .case-tags span{font-size:11.5px;font-weight:700;color:var(--red);background:var(--red-light);border-radius:6px;padding:3px 8px}

/* ===== Articles ===== */
.articles{background:linear-gradient(180deg,#fff,#fff7f5);border-top:1px solid var(--line)}
.article-list{display:grid;gap:12px}
.article-item{
  display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:18px 20px;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.article-item:hover{transform:translateX(5px);box-shadow:var(--shadow);border-color:#f4cfcc}
.article-dot{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;background:var(--red-light);
  display:flex;align-items:center;justify-content:center;color:var(--red);font-weight:900;font-size:13px;
  border:1px solid #f6d3d1;
}
.article-item .a-body{flex:1;min-width:0}
.article-item .a-body strong{display:block;font-size:15px;font-weight:700;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-item .a-body span{font-size:12.5px;color:var(--ink-3)}
.article-item .a-arrow{color:var(--red);font-weight:900;font-size:16px;flex:0 0 auto}

/* ===== Pricing / Token ===== */
.token-band{
  background:linear-gradient(135deg,#fff4f2,#ffe9e7 60%,#fff6f3);
  border-top:1px solid #f6d5d2;border-bottom:1px solid #f6d5d2;
}
.token-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.token-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;
  transition:transform .3s,box-shadow .3s;position:relative;
}
.token-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.token-card.featured{border-color:#f0c9c7;box-shadow:0 14px 34px rgba(168,18,26,.12)}
.token-card.featured::after{
  content:"热门";position:absolute;top:-11px;right:18px;font-size:11px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--red),var(--red-deep));padding:4px 12px;border-radius:999px;
}
.token-card h3{font-size:17px;font-weight:800;margin-bottom:6px}
.token-card .t-desc{font-size:13px;color:var(--ink-3);margin-bottom:16px}
.token-price{font-size:30px;font-weight:900;color:var(--red);letter-spacing:-.02em;line-height:1.1}
.token-price small{font-size:13px;font-weight:600;color:var(--ink-3);margin-left:4px}
.token-card ul{margin-top:16px;display:grid;gap:9px}
.token-card ul li{font-size:13.5px;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start}
.token-card ul li::before{content:"✓";color:var(--red);font-weight:900;flex:0 0 auto}

/* ===== Form / Contact ===== */
.contact{background:linear-gradient(180deg,#fff8f6,#fffaf8);border-top:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.form-card h3{font-size:20px;font-weight:800;margin-bottom:6px}
.form-card .form-sub{font-size:13.5px;color:var(--ink-3);margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:13px;font-weight:700;color:var(--ink-2);margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;
  font-size:14px;font-family:inherit;color:var(--ink);background:#fffaf9;
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--red);background:#fff;box-shadow:0 0 0 3px rgba(214,31,38,.1);
}
.form-group textarea{resize:vertical;min-height:110px}
.form-submit{width:100%;margin-top:6px}
.form-tip{font-size:12px;color:var(--ink-3);margin-top:12px;text-align:center}
.contact-info{display:grid;gap:14px}
.contact-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;
  display:flex;align-items:flex-start;gap:14px;transition:transform .25s,box-shadow .25s;
}
.contact-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.contact-ic{
  flex:0 0 auto;width:40px;height:40px;border-radius:11px;background:var(--red-light);
  display:flex;align-items:center;justify-content:center;color:var(--red);font-size:17px;border:1px solid #f6d3d1;
}
.contact-item .c-body strong{display:block;font-size:14px;font-weight:800;color:var(--ink);margin-bottom:2px}
.contact-item .c-body span{font-size:13.5px;color:var(--ink-3);word-break:break-all}
.qr-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;text-align:center}
.qr-card img{width:150px;height:150px;object-fit:contain;margin:0 auto 10px;border-radius:10px;border:1px solid var(--line);padding:6px;background:#fff}
.qr-card p{font-size:13px;color:var(--ink-3);font-weight:600}

/* ===== FAQ ===== */
.faq{background:#fff;border-top:1px solid var(--line)}
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq-item{background:#fffaf9;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow .25s,border-color .25s}
.faq-item.active{border-color:#f4cfcc;box-shadow:var(--shadow)}
.faq-q{
  width:100%;background:none;border:none;cursor:pointer;text-align:left;
  padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:15px;font-weight:700;color:var(--ink);font-family:inherit;line-height:1.5;
}
.faq-q:hover{color:var(--red)}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--red-light);
  display:flex;align-items:center;justify-content:center;color:var(--red);font-weight:800;font-size:15px;
  transition:transform .3s ease,background .3s;
}
.faq-item.active .faq-icon{transform:rotate(45deg);background:var(--red);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-a-inner{padding:0 22px 20px;font-size:14px;color:var(--ink-3);line-height:1.8}

/* ===== Links / footer ===== */
.friend-links{
  background:#fff7f5;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:30px 0;
}
.friend-links h3{font-size:14px;font-weight:800;color:var(--ink);margin-bottom:14px}
.link-cloud{display:flex;flex-wrap:wrap;gap:9px}
.link-cloud a{
  font-size:13px;font-weight:600;color:var(--ink-2);background:#fff;border:1px solid var(--line);
  border-radius:8px;padding:7px 13px;transition:color .2s,border-color .2s,transform .2s;
}
.link-cloud a:hover{color:var(--red);border-color:#f0c9c7;transform:translateY(-2px)}

.site-footer{background:#1c1c22;color:#d6d6dd;padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:36px}
.footer-brand .fb-title{font-size:18px;font-weight:800;color:#fff;margin-bottom:10px}
.footer-brand p{font-size:13.5px;color:#a8a8b3;line-height:1.8}
.footer-brand .footer-logo{max-height:38px;margin-bottom:14px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-col ul li{margin-bottom:9px}
.footer-col ul li a{font-size:13.5px;color:#a8a8b3;transition:color .2s}
.footer-col ul li a:hover{color:#ff9e99}
.footer-contact p{font-size:13.5px;color:#a8a8b3;margin-bottom:8px;word-break:break-all}
.footer-contact p b{color:#fff;font-weight:700}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);padding:18px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:#8a8a95;
}
.footer-bottom .fb-links{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom .fb-links a{color:#a8a8b3;transition:color .2s}
.footer-bottom .fb-links a:hover{color:#ff9e99}

/* ===== Floating ===== */
.float-tools{position:fixed;right:18px;bottom:22px;z-index:90;display:flex;flex-direction:column;gap:10px}
.float-btn{
  width:50px;height:50px;border-radius:14px;border:1px solid #f6d3d1;background:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:0 8px 22px rgba(168,18,26,.16);transition:transform .25s,box-shadow .25s,background .25s;
  color:var(--red);font-size:19px;font-weight:800;
}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(168,18,26,.24);background:var(--red-light)}
.back-top{opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s,transform .25s}
.back-top.show{opacity:1;visibility:visible}

/* ===== Reveal animation ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
.reveal-d1{transition-delay:.08s}
.reveal-d2{transition-delay:.16s}
.reveal-d3{transition-delay:.24s}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero-panel{max-width:560px}
  .about-grid{grid-template-columns:1fr;gap:30px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .scenario-grid{grid-template-columns:repeat(2,1fr)}
  .network-grid{grid-template-columns:1fr;gap:26px}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .token-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto}
  .contact-grid{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .nav-links a{padding:9px 10px;font-size:13.5px}
}
@media (max-width:860px){
  .nav-links{display:none}
  .header-cta .btn{display:none}
  .burger{display:flex}
  .stats-band-inner{grid-template-columns:repeat(2,1fr);gap:10px;padding:22px 0}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .about-list{grid-template-columns:1fr}
}
@media (max-width:600px){
  .container{padding:0 16px}
  .hero{padding:48px 0 44px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-stat-grid{grid-template-columns:1fr 1fr;gap:10px}
  .service-grid,.flow-grid,.scenario-grid,.review-grid,.case-grid{grid-template-columns:1fr}
  .network-cities{grid-template-columns:repeat(2,1fr)}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .score-card{padding:22px}
  .review-grid{gap:14px}
  .float-btn{width:46px;height:46px;border-radius:12px;font-size:17px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}