:root{
  --bg:#ffffff;
  --bg-soft:#f6f8fc;
  --text:#0f172a;
  --muted:#475569;
  --line:#e5eaf3;

  --brand:#1d4ed8;      /* 主色：蓝（可改） */
  --brand2:#0ea5e9;     /* 辅色 */
  --shadow: 0 18px 60px rgba(15, 23, 42, .10);

  --radius:16px;
  --radius2:22px;
  --container:1120px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
          Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji";
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
}
a{ color:inherit; text-decoration:none; }
.container{
  width:min(var(--container), calc(100% - 40px));
  margin:0 auto;
}
.muted{ color:var(--muted); }
code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  background:#eef2ff;
  padding:2px 6px;
  border-radius:10px;
}

/* 顶部提示 */
.notice{
  position:sticky;
  top:0;
  z-index:60;
  background:#0b1220;
  color:#e5e7eb;
}
.notice__inner{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px 0;
}
.notice__badge{
  font-weight:900;
  font-size:12px;
  padding:3px 10px;
  border-radius:999px;
  background:rgba(14,165,233,.18);
  border:1px solid rgba(14,165,233,.35);
}
.notice__text{
  margin:0;
  font-size:13px;
  opacity:.92;
}
.notice__link{
  margin-left:auto;
  color:#7dd3fc;
  font-weight:800;
  font-size:13px;
}

/* Header */
.header{
  position:sticky;
  top:44px;
  z-index:50;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 0;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:900;
}
.brand__mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:14px;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  color:#fff;
  font-size:14px;
  letter-spacing:.02em;
}
.brand__name{ font-size:18px; }
.brand__tag{
  font-size:12px;
  padding:3px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);
  background:#fff;
}

.nav{
  display:flex;
  align-items:center;
  gap:18px;
}
.nav a{
  color:var(--muted);
  font-weight:700;
  font-size:14px;
}
.nav a:hover{ color:var(--text); }

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  font-weight:800;
  cursor:pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.btn:hover{
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(15,23,42,.08);
  border-color: #d7deea;
}
.btn--primary{
  border:none;
  color:#fff;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
}
.btn--ghost{
  background: transparent;
}
.btn--sm{ padding:10px 14px; font-size:14px; }
.btn--block{ width:100%; }

/* Hero */
.hero{
  padding:64px 0 26px;
  background:
    radial-gradient(800px 480px at 15% 15%, rgba(29,78,216,.10), transparent 60%),
    radial-gradient(700px 420px at 85% 20%, rgba(14,165,233,.10), transparent 60%),
    linear-gradient(180deg, #ffffff, #ffffff);
}
.hero__grid{
  display:grid;
  grid-template-columns: 1.2fr .85fr;
  gap:22px;
  align-items:center;
}
.kicker{
  color: var(--brand);
  font-weight:900;
  letter-spacing:.08em;
  text-transform:uppercase;
  font-size:12px;
  margin:0 0 10px;
}
.hero h1{
  margin: 0 0 12px;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height:1.1;
}
.lead{
  margin: 0 0 18px;
  color: var(--muted);
  font-size:16px;
}
.hero__actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin: 16px 0 18px;
}
.trustline{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin: 8px 0 18px;
}
.chip{
  font-size:13px;
  font-weight:800;
  color:#0b1220;
  background:#f1f5ff;
  border:1px solid #dbe6ff;
  padding:8px 10px;
  border-radius:999px;
}
.stats{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:10px;
}
.stat{
  border:1px solid var(--line);
  border-radius: 16px;
  padding:12px 12px;
  background:#fff;
}
.stat__num{
  font-weight:950;
  font-size:18px;
}
.stat__txt{
  color:var(--muted);
  font-size:13px;
}

/* Card */
.hero__card .card{
  border:1px solid var(--line);
  border-radius: var(--radius2);
  background:#fff;
  box-shadow: var(--shadow);
  padding:18px;
}
.card__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.card__head h3{ margin:0; font-size:16px; }
.pill{
  font-size:12px;
  font-weight:900;
  padding:6px 10px;
  border-radius:999px;
  background:#ecfeff;
  border:1px solid #c7f9ff;
  color:#0369a1;
}
.card__list{ margin-top:10px; display:grid; gap:10px; }
.item{
  border:1px solid var(--line);
  border-radius: 16px;
  padding:12px 12px;
  background: #ffffff;
}
.item__title{ font-weight:900; }
.item__meta{ color:var(--muted); font-size:13px; margin-top:4px; }
.divider{ height:1px; background:var(--line); margin:14px 0; }
.card__cta .hint{
  margin:10px 0 0;
  color:var(--muted);
  font-size:12px;
}

/* Sections */
.section{ padding:58px 0; }
.section--soft{ background: var(--bg-soft); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.section__head{ margin-bottom: 18px; }
.section__head h2{
  margin:0 0 8px;
  font-size: clamp(22px, 2.2vw, 32px);
}
.grid{ display:grid; gap:14px; }
.grid--3{ grid-template-columns: repeat(3, 1fr); }
.grid--2{ grid-template-columns: repeat(2, 1fr); }

.tile{
  border:1px solid var(--line);
  background:#fff;
  border-radius: var(--radius2);
  padding:18px;
  box-shadow: 0 12px 34px rgba(15,23,42,.06);
}
.tile__icon{
  width:42px; height:42px;
  border-radius: 14px;
  display:grid; place-items:center;
  background:#f1f5ff;
  border:1px solid #e1eaff;
  font-size:20px;
}
.tile h3{ margin:10px 0 8px; }
.tile p{ margin:0 0 10px; color:var(--muted); }
.mini{
  margin:0;
  padding-left:18px;
  color:var(--muted);
}
.countries{
  margin-top:14px;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.tag{
  font-size:13px;
  font-weight:800;
  background:#fff;
  border:1px solid var(--line);
  padding:8px 10px;
  border-radius:999px;
}

/* Steps */
.steps{
  display:grid;
  gap:12px;
}
.step{
  display:grid;
  grid-template-columns: 72px 1fr;
  gap:12px;
  align-items:start;
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius2);
  padding:16px;
  box-shadow: 0 12px 34px rgba(15,23,42,.05);
}
.step__num{
  width:56px;height:56px;
  border-radius: 18px;
  display:grid;place-items:center;
  font-weight:950;
  color:#fff;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
}
.step__body h3{ margin:0 0 6px; }
.step__body p{ margin:0; color:var(--muted); }

.callout{
  margin-top:14px;
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:14px 16px;
  border-radius: var(--radius2);
  border: 1px solid #dbeafe;
  background: #eff6ff;
}
.callout__icon{ font-size:18px; }
.callout__text{ color:#0b1220; }

/* Panels */
.panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius2);
  padding:18px;
  box-shadow: 0 12px 34px rgba(15,23,42,.06);
}
.panel h3{ margin-top:0; }
.checks{
  margin:12px 0 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:10px;
}
.checks li{
  padding-left:26px;
  position:relative;
  color:var(--muted);
  font-weight:650;
}
.checks li:before{
  content:"✓";
  position:absolute;
  left:0; top:0;
  color: var(--brand);
  font-weight:950;
}

/* Testimonials */
.testimonials{
  margin-top:14px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:12px;
}
.quote{
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius2);
  padding:16px;
  box-shadow: 0 12px 34px rgba(15,23,42,.05);
}
.quote p{ margin:0 0 10px; color:var(--text); font-weight:750; }
.quote__by{ color:var(--muted); font-size:13px; font-weight:700; }

/* Pricing */
.pricing{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.plan{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius2);
  padding:18px;
  box-shadow: 0 12px 34px rgba(15,23,42,.06);
}
.plan h3{ margin:0 0 10px; }
.price{
  font-size:34px;
  font-weight:950;
  margin:0 0 6px;
}
.price span{ font-size:13px; color:var(--muted); font-weight:800; }
.plan p{ margin:0 0 10px; }
.plan ul{ margin:10px 0 16px; padding-left:18px; color:var(--muted); }
.plan--hot{
  border-color:#c7d2fe;
  background: linear-gradient(180deg, #ffffff, #f5f7ff);
}
.ribbon{
  position:absolute;
  top:14px; right:14px;
  font-size:12px;
  font-weight:950;
  color:#1e3a8a;
  background:#e0e7ff;
  border:1px solid #c7d2fe;
  padding:6px 10px;
  border-radius:999px;
}

/* FAQ */
.faq{ display:grid; gap:10px; }
details{
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius2);
  padding:14px 16px;
}
summary{
  cursor:pointer;
  font-weight:900;
}
details p{ margin:10px 0 0; color:var(--muted); }

/* Contact */
.contact{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap:14px;
  align-items:start;
}
.contact__left{
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius2);
  padding:18px;
  box-shadow: 0 12px 34px rgba(15,23,42,.06);
}
.contact__cards{
  margin-top:12px;
  display:grid;
  gap:10px;
}
.c-card{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:12px 12px;
  border-radius:16px;
  border:1px solid var(--line);
  background:#fff;
}
.c-card__label{ color:var(--muted); font-weight:800; font-size:13px; }
.c-card__value{ font-weight:900; }

.note-box{
  margin-top:12px;
  border-radius: 16px;
  border:1px solid #bbf7d0;
  background:#f0fdf4;
  padding:12px 12px;
  color:#052e16;
  font-weight:650;
}

.form{
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius2);
  padding:18px;
  box-shadow: 0 12px 34px rgba(15,23,42,.06);
}
label{ display:grid; gap:8px; margin-bottom:12px; }
label span{ color:var(--muted); font-weight:850; font-size:13px; }
input, textarea{
  width:100%;
  border-radius: 16px;
  border:1px solid #dbe3f2;
  background:#fff;
  padding:12px 12px;
  outline:none;
  color:var(--text);
}
input:focus, textarea:focus{
  border-color:#93c5fd;
  box-shadow: 0 0 0 4px rgba(59,130,246,.12);
}
.hint{
  margin:10px 0 0;
  color:var(--muted);
  font-size:12px;
}

/* Footer */
.footer{
  border-top:1px solid var(--line);
  padding:22px 0;
  background:#fff;
}
.footer__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.footer__right{
  display:flex;
  gap:14px;
  color:var(--muted);
  font-weight:800;
  font-size:14px;
}
.footer__right a:hover{ color:var(--text); }
.brand--footer .brand__tag{ display:none; }

/* Responsive */
@media (max-width: 980px){
  .nav a{ display:none; }
  .nav .btn{ display:inline-flex; }

  .hero__grid{ grid-template-columns: 1fr; }
  .grid--3{ grid-template-columns: 1fr; }
  .grid--2{ grid-template-columns: 1fr; }
  .testimonials{ grid-template-columns: 1fr; }
  .pricing{ grid-template-columns: 1fr; }
  .contact{ grid-template-columns: 1fr; }
  .stats{ grid-template-columns: 1fr; }
}