:root{
  --bg: #ffffff;
  --bg-2: #f6f7fb;
  --text: #111827;
  --muted: #6b7280;
  --border: rgba(17, 24, 39, .10);
  --border-2: rgba(17, 24, 39, .14);
  --shadow: 0 20px 60px rgba(17, 24, 39, .08);
  --shadow-2: 0 12px 30px rgba(17, 24, 39, .10);
  --brand: #2f6bff;
  --brand-2: #1b4fe0;
  --brand-soft: rgba(47, 107, 255, .12);
  --ok: #16a34a;
  --bad: #dc2626;
  --radius: 16px;
  --radius-sm: 12px;
  --container: 1120px;
  --ease: cubic-bezier(.2,.8,.2,1);
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 20% 0%, rgba(47,107,255,.10), transparent 55%),
              radial-gradient(900px 500px at 100% 30%, rgba(47,107,255,.08), transparent 55%),
              var(--bg);
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display: block; }

.container{
  width: min(var(--container), calc(100% - 40px));
  margin-inline: auto;
}

.skip-link{
  position: absolute;
  left: 12px;
  top: 12px;
  transform: translateY(-200%);
  background: var(--bg);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  padding: 10px 12px;
  box-shadow: var(--shadow-2);
  z-index: 999;
}
.skip-link:focus{ transform: translateY(0); outline: none; }

/* Header */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,.72);
  border-bottom: 1px solid var(--border);
}
.header-inner{
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
}
.brand{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 160px;
}
.brand-mark{
  width: 28px;
  height: 28px;
  border-radius: 10px;
  background:
    linear-gradient(135deg, var(--brand) 0%, #78a3ff 100%);
  box-shadow: 0 10px 24px rgba(47,107,255,.24);
}
.brand-name{
  font-weight: 700;
  letter-spacing: .2px;
}
.top-nav{
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
}
.nav-link{
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 10px;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.nav-link:hover{
  background: rgba(17,24,39,.04);
  color: var(--text);
}
.header-cta{
  display: flex;
  gap: 10px;
}

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  padding: 10px 14px;
  font-weight: 800;
  font-size: 14px;
  cursor: pointer;
  transition: transform .12s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
  user-select: none;
}
.btn:active{ transform: translateY(1px); }
.btn:focus-visible{
  outline: 3px solid rgba(47,107,255,.28);
  outline-offset: 2px;
}
.btn-primary{
  background: linear-gradient(180deg, var(--brand) 0%, var(--brand-2) 100%);
  color: white;
  box-shadow: 0 14px 34px rgba(47,107,255,.22);
}
.btn-primary:hover{ box-shadow: 0 18px 44px rgba(47,107,255,.28); }
.btn-ghost{
  background: rgba(255,255,255,.75);
  border-color: var(--border-2);
  color: var(--text);
}
.btn-ghost:hover{
  background: white;
  box-shadow: 0 10px 24px rgba(17,24,39,.08);
}
.btn-lg{
  padding: 12px 18px;
  border-radius: 14px;
  font-size: 15px;
}
.btn-sm{
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 13px;
}
.btn-full{ width: 100%; }

/* Hero */
.hero{ padding: 52px 0 34px; }
.hero-grid{
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 22px;
  align-items: start;
}
.hero-copy{ padding: 6px 0; }
.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(47,107,255,.18);
  background: rgba(47,107,255,.08);
  color: #1d4ed8;
  font-weight: 800;
  font-size: 13px;
}
.hero-title{
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.08;
  letter-spacing: -.02em;
  margin: 16px 0 12px;
}
.accent{
  background: linear-gradient(180deg, rgba(47,107,255,.0) 45%, rgba(47,107,255,.18) 45%);
  border-radius: 10px;
  padding: 0 6px;
  white-space: nowrap;
}
.hero-subtitle{
  color: var(--muted);
  font-size: 16px;
  margin: 0;
  max-width: 56ch;
}
.hero-actions{
  display: flex;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
}
.hero-badges{
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.badge{
  font-size: 13px;
  font-weight: 800;
  color: rgba(17,24,39,.72);
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.70);
}

.hero-card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,.70);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.preview{ padding: 14px; }
.preview-top{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 10px 12px;
  border-radius: 14px;
  background: rgba(17,24,39,.03);
  border: 1px solid var(--border);
}
.dot{
  width: 10px;
  height: 10px;
  border-radius: 999px;
}
.dot-red{ background: #ef4444; }
.dot-yellow{ background: #f59e0b; }
.dot-green{ background: #22c55e; }
.preview-title{
  margin-left: 6px;
  font-weight: 900;
  font-size: 13px;
  color: rgba(17,24,39,.75);
}
.preview-body{
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}
.preview-col{
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: rgba(255,255,255,.75);
  min-height: 220px;
}
.preview-label{
  font-weight: 900;
  font-size: 12px;
  color: rgba(17,24,39,.62);
  margin-bottom: 10px;
}
.file{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(17,24,39,.02);
  margin-bottom: 10px;
}
.file-icon{
  width: 34px;
  height: 26px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 11px;
  color: #1d4ed8;
  background: rgba(47,107,255,.14);
}
.file-name{
  font-size: 13px;
  font-weight: 800;
  color: rgba(17,24,39,.76);
}
.kv{
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 10px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.72);
  margin-bottom: 10px;
}
.k{
  font-size: 12px;
  font-weight: 900;
  color: rgba(17,24,39,.55);
}
.v{
  font-size: 13px;
  font-weight: 900;
  color: rgba(17,24,39,.78);
}
.out{
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: rgba(47,107,255,.06);
  margin-bottom: 10px;
}
.out-title{
  font-weight: 1000;
  font-size: 13px;
  color: rgba(17,24,39,.78);
  margin-bottom: 10px;
}
.out-line{
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(47,107,255,.22), rgba(17,24,39,.08));
  margin-bottom: 8px;
}
.out-line.short{ width: 70%; }

.hero-metrics{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(17,24,39,.06);
  border-top: 1px solid var(--border);
}
.metric{
  padding: 12px 14px;
  background: rgba(255,255,255,.70);
}
.metric-value{
  font-weight: 1000;
  letter-spacing: -.01em;
}
.metric-label{
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  margin-top: 4px;
}

/* Sections */
.section{ padding: 54px 0; }
.section-alt{
  background: linear-gradient(180deg, var(--bg-2), rgba(255,255,255,0));
  border-top: 1px solid rgba(17,24,39,.06);
  border-bottom: 1px solid rgba(17,24,39,.06);
}
.section-head{
  max-width: 760px;
  margin: 0 0 22px;
}
.section-title{
  margin: 0;
  font-size: clamp(22px, 2.1vw, 30px);
  letter-spacing: -.01em;
}
.section-subtitle{
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
}
.grid-2{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}
.card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,.78);
  box-shadow: 0 18px 50px rgba(17,24,39,.06);
  padding: 18px;
}
.card-title{
  margin: 0 0 12px;
  font-size: 16px;
  letter-spacing: -.01em;
}
.list{
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.list li{
  display: grid;
  grid-template-columns: 22px 1fr;
  align-items: start;
  gap: 10px;
  padding: 10px 10px;
  border-radius: 14px;
  border: 1px solid rgba(17,24,39,.08);
  background: rgba(17,24,39,.02);
  color: rgba(17,24,39,.80);
  font-weight: 700;
  font-size: 14px;
}
.icon{ font-size: 16px; line-height: 1; }
.flow{
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 10px;
  align-items: center;
  padding: 10px;
  border-radius: 16px;
  border: 1px solid rgba(47,107,255,.18);
  background: rgba(47,107,255,.06);
}
.flow-step{
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 10px;
  align-items: start;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid rgba(17,24,39,.08);
  background: rgba(255,255,255,.80);
}
.flow-no{
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 1000;
  color: #1d4ed8;
  background: rgba(47,107,255,.12);
}
.flow-title{
  font-weight: 1000;
  margin-bottom: 4px;
}
.flow-desc{
  color: rgba(17,24,39,.70);
  font-weight: 700;
  font-size: 13px;
}
.flow-arrow{
  color: rgba(17,24,39,.45);
  font-weight: 1000;
  padding: 0 2px;
}
.callout{
  margin-top: 14px;
  border-radius: 16px;
  padding: 12px 14px;
  border: 1px solid rgba(16,185,129,.18);
  background: rgba(16,185,129,.06);
}
.callout-title{ font-weight: 1000; }
.callout-desc{ color: rgba(17,24,39,.72); font-weight: 700; margin-top: 4px; font-size: 13px; }

.section-cta{
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
  flex-wrap: wrap;
}
.muted{
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

/* Trust */
.trust-grid{
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 16px;
  align-items: start;
}
.stat{
  display: grid;
  gap: 6px;
  padding: 12px 12px;
  border-radius: 16px;
  border: 1px solid rgba(47,107,255,.18);
  background: rgba(47,107,255,.06);
  margin-bottom: 14px;
}
.stat-value{ font-weight: 1000; letter-spacing: -.01em; }
.stat-sub{ color: var(--muted); font-size: 12px; font-weight: 700; }
.counter{
  font-variant-numeric: tabular-nums;
  color: #1d4ed8;
}
.logo-wall{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 12px 0 10px;
}
.logo{
  height: 44px;
  border-radius: 14px;
  border: 1px dashed rgba(17,24,39,.18);
  background: rgba(255,255,255,.72);
  display: grid;
  place-items: center;
  color: rgba(17,24,39,.55);
  font-weight: 900;
  font-size: 13px;
}
.faq details{
  border: 1px solid rgba(17,24,39,.10);
  border-radius: 14px;
  background: rgba(255,255,255,.70);
  padding: 10px 12px;
  margin-top: 10px;
}
.faq summary{
  cursor: pointer;
  font-weight: 900;
}
.faq p{
  margin: 10px 0 0;
  color: rgba(17,24,39,.72);
  font-weight: 700;
  font-size: 13px;
}

/* Lead */
.lead-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}
.pill-list{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}
.pill{
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(17,24,39,.10);
  background: rgba(255,255,255,.72);
  font-weight: 900;
  font-size: 13px;
  color: rgba(17,24,39,.72);
}
.lead-card{ padding: 18px; }
.form{ display: grid; gap: 12px; }
.form-row{ display: grid; gap: 6px; }
.label{
  font-weight: 900;
  font-size: 13px;
  color: rgba(17,24,39,.80);
}
.input{
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(17,24,39,.16);
  background: rgba(255,255,255,.86);
  font-size: 14px;
  font-weight: 700;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.input::placeholder{ color: rgba(107,114,128,.8); font-weight: 700; }
.input:focus{
  outline: none;
  border-color: rgba(47,107,255,.55);
  box-shadow: 0 0 0 4px rgba(47,107,255,.14);
}
.hint{ color: var(--muted); font-size: 12px; font-weight: 700; }
.fineprint{
  margin: 0;
  color: rgba(107,114,128,.92);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.45;
}
.form-message{
  display: none;
  border-radius: 14px;
  padding: 12px 12px;
  border: 1px solid rgba(17,24,39,.12);
  background: rgba(17,24,39,.03);
  color: rgba(17,24,39,.76);
  font-weight: 800;
  font-size: 13px;
}
.form-message.is-show{ display: block; }
.form-message.is-ok{
  border-color: rgba(16,185,129,.35);
  background: rgba(16,185,129,.1);
  color: #047857;
}
.form-message.is-bad{
  border-color: rgba(220,38,38,.18);
  background: rgba(220,38,38,.06);
}
.hp{ position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Footer */
.footer{
  padding: 26px 0;
  border-top: 1px solid rgba(17,24,39,.08);
  background: rgba(255,255,255,.75);
}
.footer-inner{
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.footer-text{
  color: rgba(107,114,128,.95);
  font-size: 12px;
  font-weight: 700;
  margin-top: 8px;
}
.footer-right{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.footer-link{
  color: rgba(107,114,128,.95);
  font-weight: 800;
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  transition: background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.footer-link:hover{
  background: rgba(17,24,39,.03);
  border-color: rgba(17,24,39,.10);
  color: rgba(17,24,39,.76);
}

/* Responsive */
@media (max-width: 980px){
  .header-inner{ flex-wrap: wrap; }
  .brand{ min-width: auto; }
  .top-nav{ order: 3; width: 100%; }
  .hero-grid{ grid-template-columns: 1fr; }
  .preview-body{ grid-template-columns: 1fr; }
  .hero-metrics{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .trust-grid{ grid-template-columns: 1fr; }
  .lead-grid{ grid-template-columns: 1fr; }
  .flow{ grid-template-columns: 1fr; }
  .flow-arrow{ display: none; }
}

@media (prefers-reduced-motion: reduce){
  *{ scroll-behavior: auto !important; transition: none !important; }
}