/* ============================================================= */
/* 三狗云支付 · 统一现代蔚蓝落地页  sanguo-landing.css            */
/* 全部模板首页共用，命名空间 .sg- 避免与模板样式冲突              */
/* ============================================================= */

:root {
  --sg-primary: #0b72e7;
  --sg-primary-dark: #0a57b8;
  --sg-primary-light: #1491f0;
  --sg-deep: #073b7d;
  --sg-grad: linear-gradient(135deg, #1491f0 0%, #0b72e7 52%, #0a57b8 100%);
  --sg-grad-soft: linear-gradient(180deg, #eef5fd 0%, #f7fbff 100%);
  --sg-ink: #16283a;
  --sg-body: #47596b;
  --sg-muted: #8296a8;
  --sg-line: #e3edf8;
  --sg-shadow: 0 18px 48px -18px rgba(7, 59, 125, .28);
  --sg-shadow-sm: 0 8px 24px -12px rgba(7, 59, 125, .18);
}

* { box-sizing: border-box; }

.sg-wrap {
  margin: 0; padding: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--sg-body); line-height: 1.7; font-size: 16px;
  background: #fff; -webkit-font-smoothing: antialiased;
}
.sg-wrap img { max-width: 100%; }
.sg-wrap a { color: var(--sg-primary); text-decoration: none; transition: color .2s ease; }
.sg-wrap a:hover { color: var(--sg-primary-dark); }
.sg-wrap h1, .sg-wrap h2, .sg-wrap h3, .sg-wrap h4 { color: var(--sg-ink); line-height: 1.25; margin: 0; }
.sg-container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.sg-section { padding: 88px 0; }
.sg-section.alt { background: var(--sg-grad-soft); }
.sg-center { text-align: center; }
.sg-eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 2px;
  color: var(--sg-primary); background: rgba(11,114,231,.08);
  padding: 6px 16px; border-radius: 999px; margin-bottom: 18px;
}
.sg-sec-title { font-size: 34px; font-weight: 700; margin-bottom: 14px; text-balance; }
.sg-sec-sub { font-size: 16px; color: var(--sg-muted); max-width: 640px; margin: 0 auto; text-pretty; }
.sg-title-bar { width: 56px; height: 4px; border-radius: 4px; background: var(--sg-grad); margin: 0 auto 22px; }

/* ---------- 按钮 ---------- */
.sg-btn {
  display: inline-block; font-size: 16px; font-weight: 600; letter-spacing: .5px;
  padding: 14px 32px; border-radius: 12px; cursor: pointer; border: none;
  transition: transform .14s ease, box-shadow .24s ease, filter .24s ease; position: relative; overflow: hidden;
}
.sg-btn-primary {
  color: #fff; background: var(--sg-grad);
  box-shadow: 0 10px 24px -8px rgba(11,114,231,.55);
}
.sg-btn-primary:hover { color: #fff; transform: translateY(-2px); filter: brightness(1.06); box-shadow: 0 16px 30px -8px rgba(11,114,231,.6); }
.sg-btn-primary:active { transform: translateY(1px) scale(.97); }
.sg-btn-primary::before {
  content: ""; position: absolute; top: 0; left: -70%; width: 45%; height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,.4), transparent);
  transform: skewX(-20deg); transition: left .55s ease;
}
.sg-btn-primary:hover::before { left: 135%; }
.sg-btn-ghost { color: var(--sg-primary); background: #fff; border: 1.5px solid var(--sg-line); }
.sg-btn-ghost:hover { color: var(--sg-primary-dark); border-color: var(--sg-primary); transform: translateY(-2px); }
.sg-btn-light { color: var(--sg-primary); background: #fff; box-shadow: var(--sg-shadow-sm); }
.sg-btn-light:hover { color: var(--sg-primary-dark); transform: translateY(-2px); }

/* ---------- 顶部导航 ---------- */
.sg-nav {
  position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(10px); border-bottom: 1px solid var(--sg-line);
}
.sg-nav-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.sg-logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--sg-deep); }
.sg-logo:hover { color: var(--sg-deep); }
.sg-logo-mark {
  width: 38px; height: 38px; border-radius: 11px; background: var(--sg-grad);
  display: flex; align-items: center; justify-content: center; color: #fff; font-size: 19px;
  box-shadow: 0 6px 14px -4px rgba(11,114,231,.5);
}
.sg-logo-mark.sg-logo-mark-img { background: #fff; padding: 4px; }
.sg-logo-mark-img img { width: 100%; height: 100%; object-fit: contain; display: block; }
.sg-menu { display: flex; align-items: center; gap: 30px; list-style: none; margin: 0; padding: 0; }
.sg-menu a { color: var(--sg-body); font-weight: 500; position: relative; padding: 6px 0; }
.sg-menu a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--sg-primary); border-radius: 2px; transition: width .24s ease;
}
.sg-menu a:hover { color: var(--sg-primary); }
.sg-menu a:hover::after { width: 100%; }
.sg-nav-cta { display: flex; align-items: center; gap: 12px; }
.sg-nav-cta .sg-btn { padding: 10px 22px; font-size: 15px; border-radius: 10px; }
.sg-burger { display: none; width: 44px; height: 44px; border: none; background: none; cursor: pointer; }
.sg-burger span { display: block; width: 24px; height: 2px; background: var(--sg-deep); margin: 5px auto; border-radius: 2px; transition: .3s; }

/* ---------- Hero ---------- */
.sg-hero {
  position: relative; overflow: hidden; color: #fff;
  background: var(--sg-grad); padding: 96px 0 110px;
}
.sg-hero::before, .sg-hero::after {
  content: ""; position: absolute; border-radius: 50%; background: rgba(255,255,255,.10); pointer-events: none;
}
.sg-hero::before { width: 460px; height: 460px; top: -160px; right: -120px; }
.sg-hero::after { width: 320px; height: 320px; bottom: -140px; left: -80px; background: rgba(255,255,255,.07); }
.sg-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.sg-hero-badge {
  display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500;
  background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.28);
  padding: 7px 16px; border-radius: 999px; margin-bottom: 24px;
}
.sg-hero h1 { color: #fff; font-size: 48px; font-weight: 800; letter-spacing: .5px; margin-bottom: 20px; text-balance; }
.sg-hero h1 .hl { background: linear-gradient(180deg, #fff, #cfe6ff); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.sg-hero p.lead { font-size: 18px; color: rgba(255,255,255,.9); max-width: 520px; margin: 0 0 34px; text-pretty; }
.sg-hero-tags { display: flex; flex-wrap: wrap; gap: 12px 26px; margin-top: 30px; }
.sg-hero-tags span { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; color: rgba(255,255,255,.92); }
.sg-hero-tags i { color: #bff0d0; }
.sg-hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero 右侧支付卡片 */
.sg-paycard {
  background: #fff; border-radius: 22px; padding: 30px; color: var(--sg-ink);
  box-shadow: 0 40px 80px -24px rgba(7,59,125,.5); position: relative;
  animation: sgFloat 5s ease-in-out infinite;
}
.sg-paycard-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.sg-paycard-top .m { display: flex; align-items: center; gap: 8px; color: var(--sg-muted); font-size: 14px; }
.sg-paycard-amt { text-align: center; padding: 12px 0 20px; border-bottom: 1px dashed var(--sg-line); }
.sg-paycard-amt small { color: var(--sg-muted); font-size: 13px; }
.sg-paycard-amt .num { font-size: 40px; font-weight: 800; color: var(--sg-ink); }
.sg-paycard-amt .num::before { content: "¥"; font-size: 22px; margin-right: 4px; color: var(--sg-primary); }
.sg-paycard-row { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; font-size: 14px; color: var(--sg-body); }
.sg-paycard-row .ok { color: #12b76a; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.sg-paycard-btn { width: 100%; margin-top: 16px; text-align: center; }
.sg-float-badge {
  position: absolute; background: #fff; border-radius: 14px; padding: 12px 16px;
  box-shadow: var(--sg-shadow); display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--sg-ink); font-weight: 600;
}
.sg-float-badge i { width: 34px; height: 34px; border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; }
.sg-fb1 { top: -22px; left: -26px; animation: sgFloat 4.4s ease-in-out infinite; }
.sg-fb1 i { background: #12b76a; }
.sg-fb2 { bottom: -20px; right: -18px; animation: sgFloat 5.6s ease-in-out infinite; }
.sg-fb2 i { background: var(--sg-primary); }
@keyframes sgFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ---------- 数据统计条 ---------- */
.sg-stats { background: #fff; padding: 0; margin-top: -64px; position: relative; z-index: 2; }
.sg-stats-card {
  background: #fff; border-radius: 20px; box-shadow: var(--sg-shadow); border: 1px solid var(--sg-line);
  display: grid; grid-template-columns: repeat(4, 1fr); padding: 34px 20px;
}
.sg-stat { text-align: center; padding: 6px 12px; position: relative; }
.sg-stat + .sg-stat::before { content: ""; position: absolute; left: 0; top: 12%; height: 76%; width: 1px; background: var(--sg-line); }
.sg-stat .n { font-size: 34px; font-weight: 800; color: var(--sg-primary); line-height: 1.1; }
.sg-stat .n small { font-size: 18px; }
.sg-stat .l { font-size: 14px; color: var(--sg-muted); margin-top: 8px; }

/* ---------- 支付方式 ---------- */
.sg-paygrid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; margin-top: 44px; }
.sg-paytile {
  background: #fff; border: 1px solid var(--sg-line); border-radius: 16px; padding: 30px 16px;
  text-align: center; transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.sg-paytile:hover { transform: translateY(-6px); box-shadow: var(--sg-shadow-sm); border-color: rgba(11,114,231,.35); }
.sg-paytile i { font-size: 40px; color: var(--sg-primary); margin-bottom: 14px; display: inline-block; }
.sg-paytile .t { font-size: 16px; font-weight: 600; color: var(--sg-ink); }
.sg-paytile .d { font-size: 13px; color: var(--sg-muted); margin-top: 4px; }

/* ---------- 核心功能 ---------- */
.sg-featgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 46px; }
.sg-feat {
  background: #fff; border: 1px solid var(--sg-line); border-radius: 18px; padding: 32px 24px; height: 100%;
  transition: transform .22s ease, box-shadow .22s ease; position: relative; overflow: hidden;
}
.sg-feat::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--sg-grad); transform: scaleX(0); transform-origin: left; transition: transform .3s ease; }
.sg-feat:hover { transform: translateY(-6px); box-shadow: var(--sg-shadow-sm); }
.sg-feat:hover::before { transform: scaleX(1); }
.sg-feat .ic { width: 56px; height: 56px; border-radius: 15px; background: rgba(11,114,231,.1); color: var(--sg-primary); display: flex; align-items: center; justify-content: center; font-size: 25px; margin-bottom: 20px; }
.sg-feat h3 { font-size: 19px; margin-bottom: 10px; }
.sg-feat p { font-size: 14px; color: var(--sg-muted); margin: 0; }

/* ---------- 优势 ---------- */
.sg-advgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 46px; }
.sg-adv {
  display: flex; gap: 18px; background: #fff; border: 1px solid var(--sg-line); border-radius: 16px; padding: 26px;
  transition: transform .22s ease, box-shadow .22s ease;
}
.sg-adv:hover { transform: translateY(-4px); box-shadow: var(--sg-shadow-sm); }
.sg-adv .num { flex: none; width: 46px; height: 46px; border-radius: 13px; background: var(--sg-grad); color: #fff; font-size: 20px; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.sg-adv h3 { font-size: 18px; margin-bottom: 8px; }
.sg-adv p { margin: 0; font-size: 14px; color: var(--sg-muted); }

/* ---------- 接入流程 ---------- */
.sg-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 46px; position: relative; }
.sg-step { text-align: center; padding: 0 10px; position: relative; }
.sg-step .dot {
  width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 50%; background: #fff;
  border: 2px solid rgba(11,114,231,.25); color: var(--sg-primary); font-size: 24px;
  display: flex; align-items: center; justify-content: center; position: relative; z-index: 1;
  transition: .24s ease;
}
.sg-step:hover .dot { background: var(--sg-grad); color: #fff; border-color: transparent; transform: scale(1.08); box-shadow: var(--sg-shadow-sm); }
.sg-step .idx { position: absolute; top: -6px; right: 16px; font-size: 12px; font-weight: 800; color: #fff; background: var(--sg-primary); width: 22px; height: 22px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.sg-step h4 { font-size: 17px; margin-bottom: 8px; }
.sg-step p { font-size: 14px; color: var(--sg-muted); margin: 0; }

/* ---------- CTA ---------- */
.sg-cta { background: var(--sg-grad); border-radius: 24px; padding: 60px 40px; text-align: center; color: #fff; position: relative; overflow: hidden; }
.sg-cta::before { content: ""; position: absolute; width: 300px; height: 300px; border-radius: 50%; background: rgba(255,255,255,.1); top: -120px; right: -60px; }
.sg-cta h2 { color: #fff; font-size: 32px; margin-bottom: 14px; position: relative; }
.sg-cta p { color: rgba(255,255,255,.9); margin: 0 auto 30px; max-width: 520px; position: relative; }

/* ---------- 页脚 ---------- */
.sg-footer { background: #0b1a2b; color: #9fb3c8; padding: 64px 0 0; }
.sg-foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr; gap: 36px; }
.sg-footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.sg-footer .col p { font-size: 14px; margin: 0 0 10px; }
.sg-footer ul { list-style: none; margin: 0; padding: 0; }
.sg-footer ul li { margin-bottom: 10px; }
.sg-footer ul a { color: #9fb3c8; font-size: 14px; }
.sg-footer ul a:hover { color: #fff; }
.sg-footer .brand .sg-logo { color: #fff; margin-bottom: 14px; }
.sg-footer .brand p { font-size: 14px; max-width: 280px; }
.sg-foot-contact li { display: flex; gap: 10px; font-size: 14px; }
.sg-foot-contact i { color: var(--sg-primary-light); margin-top: 3px; }
.sg-foot-bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 48px; padding: 22px 0; text-align: center; font-size: 13px; color: #7d93a8; }

/* ---------- 滚动入场 ---------- */
.sg-reveal { opacity: 0; transform: translateY(28px); transition: opacity .6s ease, transform .6s ease; }
.sg-reveal.in { opacity: 1; transform: none; }
.sg-hero .sg-anim { opacity: 0; animation: sgUp .7s ease forwards; }
.sg-hero .sg-anim.d1 { animation-delay: .08s; }
.sg-hero .sg-anim.d2 { animation-delay: .16s; }
.sg-hero .sg-anim.d3 { animation-delay: .24s; }
.sg-hero .sg-anim.d4 { animation-delay: .32s; }
@keyframes sgUp { to { opacity: 1; transform: none; } }

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
  .sg-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .sg-hero p.lead { max-width: 100%; }
  .sg-paycard { max-width: 420px; margin: 0 auto; }
  .sg-featgrid { grid-template-columns: repeat(2, 1fr); }
  .sg-paygrid { grid-template-columns: repeat(3, 1fr); }
  .sg-steps { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .sg-foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .sg-section { padding: 60px 0; }
  .sg-sec-title { font-size: 26px; }
  .sg-hero { padding: 64px 0 90px; }
  .sg-hero h1 { font-size: 32px; }
  .sg-hero p.lead { font-size: 16px; }
  .sg-menu, .sg-nav-cta { display: none; }
  .sg-burger { display: block; }
  .sg-nav.open .sg-menu {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: absolute; top: 70px; left: 0; right: 0; background: #fff;
    border-bottom: 1px solid var(--sg-line); box-shadow: var(--sg-shadow-sm); padding: 8px 0;
  }
  .sg-nav.open .sg-menu li { padding: 0 24px; }
  .sg-nav.open .sg-menu a { display: block; padding: 13px 0; border-bottom: 1px solid var(--sg-grad-soft); }
  .sg-nav.open .sg-menu .sg-menu-cta { display: flex; gap: 10px; padding-top: 14px; border-bottom: none; }
  .sg-nav.open .sg-menu .sg-menu-cta .sg-btn { flex: 1; text-align: center; }
  .sg-stats-card { grid-template-columns: repeat(2, 1fr); gap: 22px 0; }
  .sg-stat:nth-child(3)::before { display: none; }
  .sg-paygrid { grid-template-columns: repeat(2, 1fr); }
  .sg-featgrid { grid-template-columns: 1fr; }
  .sg-advgrid { grid-template-columns: 1fr; }
  .sg-steps { grid-template-columns: 1fr; }
  .sg-foot-grid { grid-template-columns: 1fr; gap: 28px; }
  .sg-cta { padding: 44px 22px; }
  .sg-cta h2 { font-size: 24px; }
  .sg-float-badge { display: none; }
}

/* ---------- 液态玻璃按钮 + 点击反光 ---------- */
.sg-btn {
  border: 1px solid rgba(255,255,255,.6);
  backdrop-filter: blur(9px) saturate(160%);
  -webkit-backdrop-filter: blur(9px) saturate(160%);
  box-shadow: inset 0 1px 1px rgba(255,255,255,.7), 0 8px 20px -6px rgba(11,114,231,.3);
}
.sg-btn::after {
  content:""; position:absolute; top:-25%; left:-85%; width:42%; height:150%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,.92), transparent);
  transform: skewX(-22deg); opacity:0; pointer-events:none;
}
.sg-btn:active::after { animation: sgLandingReflect .55s ease-out; }
@keyframes sgLandingReflect { 0%{left:-85%;opacity:0} 20%{opacity:1} 100%{left:135%;opacity:0} }
.sg-btn-primary { background: linear-gradient(135deg, rgba(90,178,255,.85), rgba(11,114,231,.74)) !important; }
.sg-btn-ghost { background: linear-gradient(135deg, rgba(255,255,255,.72), rgba(224,237,252,.5)) !important; border-color: rgba(255,255,255,.78); }
.sg-btn-light { background: linear-gradient(135deg, rgba(255,255,255,.86), rgba(230,241,253,.62)) !important; }