:root {
  --brand: #597EF7;
  --brand-dark: #1D2B5F;
  --text: #222222;
  --muted: #5B647A;
  --soft: #F6F8FF;
  --soft-2: #ECF0FF;
  --soft-3: #EAF7FF;
  --card: rgba(255, 255, 255, 0.86);
  --line: rgba(89, 126, 247, 0.16);
  --shadow: 0 18px 45px rgba(89, 126, 247, 0.12);
  --footer: #1F1F1F;
}

* { box-sizing: border-box; }
html,
body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(122,196,245,0.22), transparent 28%),
    linear-gradient(180deg, #F6F8FF 0%, #ECF0FF 48%, #EAF7FF 100%);
}

a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }

.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 9999;
  background: linear-gradient(135deg, #F7F9FF 0%, #ECF0FF 52%, #EAF7FF 100%);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(89, 126, 247, 0.10);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 22px;
}
.brand img { width: 156px; height: 48px; object-fit: contain; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: 4px; flex: 1; }
.desktop-nav a,
.drawer-nav a {
  text-decoration: none;
  color: #3F4A66;
  font-weight: 650;
  font-size: 14px;
  padding: 10px 12px;
  border-radius: 999px;
  transition: all .22s ease;
  white-space: nowrap;
}
.desktop-nav a:hover,
.desktop-nav a.active,
.drawer-nav a:hover,
.drawer-nav a.active {
  color: #1D2B5F;
  background: rgba(89, 126, 247, 0.11);
}
.main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, #7580EE 0%, #597EF7 48%, #7AC4F5 100%);
  color: #FFFFFF;
  font-weight: 700;
  text-decoration: none;
  box-shadow:
    0 0 10px rgba(89, 126, 247, 0.28),
    0 0 22px rgba(122, 196, 245, 0.20),
    0 10px 24px rgba(89, 126, 247, 0.20);
  transition: all 0.25s ease;
  border: 0;
  white-space: nowrap;
}
.main-btn:hover {
  transform: translateY(-1px);
  box-shadow:
    0 0 14px rgba(89, 126, 247, 0.36),
    0 0 28px rgba(122, 196, 245, 0.26),
    0 14px 28px rgba(89, 126, 247, 0.24);
}
.header-btn { padding: 10px 22px; font-size: 14px; }
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.72);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.menu-toggle span { width: 20px; height: 2px; background: var(--brand-dark); border-radius: 999px; }
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(16, 24, 39, 0.42);
  opacity: 0;
  visibility: hidden;
  z-index: 10000;
  transition: all .25s ease;
}
.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: min(82vw, 330px);
  height: 100vh;
  background: linear-gradient(180deg, #F7F9FF 0%, #ECF0FF 100%);
  z-index: 10001;
  transform: translateX(-104%);
  transition: transform .28s ease;
  box-shadow: 18px 0 38px rgba(29, 43, 95, .18);
  padding: 18px;
}
.drawer-open .drawer-overlay { opacity: 1; visibility: visible; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.drawer-logo img { width: 150px; height: 46px; object-fit: contain; }
.drawer-close { border: 0; width: 38px; height: 38px; border-radius: 50%; color: var(--brand-dark); background: rgba(89,126,247,.12); font-size: 26px; line-height: 1; }
.drawer-nav { display: grid; gap: 8px; }
.drawer-nav a { display: block; padding: 12px 14px; }

main { width: 100%; }
.container { width: min(1200px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 56px 0; }
.section-tight { padding: 36px 0; }
.section-head { margin-bottom: 26px; }
.eyebrow {
  color: var(--brand);
  font-weight: 750;
  letter-spacing: .04em;
  margin: 0 0 8px;
  font-size: 14px;
}
h1, h2, h3 { color: var(--brand-dark); margin-top: 0; line-height: 1.25; }
h1 { font-size: clamp(34px, 5vw, 58px); margin-bottom: 18px; }
h2 { font-size: clamp(26px, 3vw, 38px); margin-bottom: 14px; }
h3 { font-size: 21px; margin-bottom: 10px; }
p { color: #3F4A66; line-height: 1.9; margin: 0 0 14px; }
ul { margin: 12px 0 0; padding-left: 20px; color: #5B647A; line-height: 1.9; }
.text-link { color: var(--brand); font-weight: 750; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.text-link:hover { text-decoration: underline; }

.banner-slider {
  max-width: 1200px;
  margin: 28px auto 36px;
  border-radius: 20px;
  background: #101827;
  box-shadow: 0 22px 48px rgba(16, 24, 39, 0.20);
  overflow: hidden;
  position: relative;
  height: clamp(190px, 35vw, 420px);
}
.slider-track { height: 100%; display: flex; transition: transform .55s ease; }
.slide { min-width: 100%; height: 100%; position: relative; background: #101827; }
.slide img { width: 100%; height: 100%; object-fit: contain; }
.slide-caption {
  position: absolute;
  left: clamp(18px, 5vw, 58px);
  bottom: clamp(18px, 5vw, 52px);
  width: min(560px, 78%);
  padding: 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.50);
}
.slide-caption h1,
.slide-caption h2 { margin-bottom: 8px; font-size: clamp(24px, 4vw, 42px); }
.slide-caption p { margin-bottom: 16px; color: #3F4A66; }
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.55);
  background: rgba(255,255,255,.72);
  color: var(--brand-dark);
  font-size: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .22s ease;
}
.slider-btn:hover { background: #fff; box-shadow: 0 10px 24px rgba(0,0,0,.18); }
.slider-prev { left: 16px; }
.slider-next { right: 16px; }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 14px; display: flex; justify-content: center; gap: 8px; }
.slider-dot { width: 9px; height: 9px; border-radius: 999px; border: 0; background: rgba(255,255,255,.72); cursor: pointer; transition: all .22s ease; }
.slider-dot.active { width: 28px; background: linear-gradient(135deg, #7580EE, #7AC4F5); }

.quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.quick-card,
.info-card,
.matrix-card,
.faq-item,
.notice-box,
.panel-card,
.timeline-item,
.contact-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.quick-card { padding: 18px; text-decoration: none; transition: all .24s ease; }
.quick-card:hover { transform: translateY(-3px); border-color: rgba(89,126,247,.32); }
.num {
  display: inline-flex;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: linear-gradient(135deg, #7580EE, #7AC4F5);
  font-weight: 800;
  margin-bottom: 12px;
}
.intro-strip {
  padding: 26px 30px;
  border-radius: 26px;
  background: linear-gradient(135deg, rgba(255,255,255,.88), rgba(234,247,255,.88));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.info-card { padding: 24px; }
.info-card li::marker { color: var(--brand); }
.split-row { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; margin-bottom: 34px; }
.split-row.reverse .split-media { order: 2; }
.split-media,
.page-media {
  border-radius: 26px;
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.split-media img,
.page-media img { width: 100%; height: 100%; max-height: 430px; object-fit: contain; }
.split-content { padding: 10px 0; }
.check-list { list-style: none; padding: 0; }
.check-list li { position: relative; padding-left: 28px; margin-bottom: 8px; color: #5B647A; }
.check-list li::before { content: ""; position: absolute; left: 0; top: .75em; width: 10px; height: 10px; border-radius: 50%; background: linear-gradient(135deg, #7580EE, #7AC4F5); box-shadow: 0 0 10px rgba(89,126,247,.25); }
.matrix-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.matrix-card { overflow: hidden; }
.matrix-card img { width: 100%; height: 190px; object-fit: contain; background: #F7F9FF; }
.card-body { padding: 20px; }
.tag { display: inline-flex; color: var(--brand); background: rgba(89,126,247,.10); border-radius: 999px; padding: 5px 12px; font-weight: 750; font-size: 13px; margin-bottom: 12px; }
.app-panel { display: grid; grid-template-columns: .92fr 1.08fr; gap: 30px; align-items: center; }
.app-panel .page-media { min-height: 360px; }
.feature-pills { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 18px 0; }
.feature-pills span { display: block; padding: 12px 14px; border-radius: 999px; background: rgba(89,126,247,.10); color: #1D2B5F; font-weight: 700; text-align: center; }
.support-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 24px; align-items: stretch; }
.support-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.panel-card { padding: 22px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { overflow: hidden; }
.faq-item button { width: 100%; border: 0; background: transparent; text-align: left; padding: 20px 22px; color: var(--brand-dark); font-weight: 800; font-size: 17px; cursor: pointer; display: flex; justify-content: space-between; gap: 14px; }
.faq-item button::after { content: "+"; color: var(--brand); font-size: 24px; line-height: 1; }
.faq-item.open button::after { content: "−"; }
.faq-item p { max-height: 0; overflow: hidden; margin: 0; padding: 0 22px; transition: all .25s ease; }
.faq-item.open p { max-height: 220px; padding: 0 22px 20px; }
.notice-box { padding: 28px; background: linear-gradient(135deg, rgba(255,255,255,.88), rgba(236,240,255,.88)); }

.page-hero { padding: 56px 0 30px; }
.page-hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: center; }
.page-hero.no-media .page-hero-inner { display: block; }
.breadcrumb { color: #5B647A; font-size: 14px; margin-bottom: 14px; }
.breadcrumb a { color: var(--brand); text-decoration: none; }
.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.content-card { padding: 26px; border-radius: 24px; border: 1px solid var(--line); background: rgba(255,255,255,.82); box-shadow: var(--shadow); }
.content-card.full { grid-column: 1 / -1; }
.steps { display: grid; gap: 16px; counter-reset: step; }
.step-card { position: relative; padding: 24px 24px 24px 74px; border-radius: 24px; border: 1px solid var(--line); background: rgba(255,255,255,.86); box-shadow: var(--shadow); }
.step-card::before { counter-increment: step; content: counter(step, decimal-leading-zero); position: absolute; left: 22px; top: 24px; color: #fff; background: linear-gradient(135deg, #7580EE, #7AC4F5); width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; }
.timeline { display: grid; gap: 16px; }
.timeline-item { padding: 22px; }
.contact-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.contact-card { padding: 24px; }
.form-box { padding: 26px; border-radius: 24px; border: 1px solid var(--line); background: rgba(255,255,255,.86); box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.form-grid label { color: #1D2B5F; font-weight: 750; display: grid; gap: 8px; }
.form-grid input,
.form-grid textarea { border: 1px solid rgba(89,126,247,.22); border-radius: 14px; padding: 13px 14px; font: inherit; color: #222; background: #fff; }
.form-grid textarea { grid-column: 1 / -1; min-height: 130px; resize: vertical; }
.form-tip { color: #5B647A; margin-top: 14px; font-size: 14px; }

.site-footer { background: linear-gradient(135deg, #1F1F1F 0%, #2B2B2B 100%); color: #E8ECF5; margin-top: 54px; }
.footer-inner { width: min(1200px, calc(100% - 40px)); margin: 0 auto; padding: 48px 0; display: grid; grid-template-columns: 1.1fr 1.4fr; gap: 42px; }
.footer-brand img { width: 156px; height: 48px; object-fit: contain; margin-bottom: 16px; }
.footer-brand p,
.footer-note { color: #E8ECF5; opacity: .86; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-links h2 { color: #FFFFFF; font-size: 18px; margin-bottom: 14px; }
.footer-links a { display: block; color: #E8ECF5; opacity: .82; text-decoration: none; margin-bottom: 10px; }
.footer-links a:hover { color: #7AC4F5; opacity: 1; }
.footer-bottom { border-top: 1px solid rgba(232,236,245,.12); color: rgba(232,236,245,.78); padding: 16px 0; width: min(1200px, calc(100% - 40px)); margin: 0 auto; display: flex; justify-content: space-between; gap: 16px; font-size: 14px; }

@media (max-width: 1080px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .header-inner { min-height: 68px; }
  .brand { position: absolute; left: 50%; transform: translateX(-50%); }
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .matrix-grid { grid-template-columns: repeat(2, 1fr); }
  .page-hero-inner, .app-panel, .support-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .container { width: min(100% - 28px, 1200px); }
  .header-inner { padding: 0 14px; }
  .brand img { width: 132px; }
  .header-btn { padding: 9px 15px; font-size: 13px; }
  .banner-slider { margin: 18px 14px 28px; border-radius: 16px; height: 220px; }
  .slide-caption { display: none; }
  .slider-btn { width: 36px; height: 36px; font-size: 22px; }
  .quick-grid { display: flex; overflow-x: auto; padding-bottom: 10px; scroll-snap-type: x mandatory; }
  .quick-card { min-width: 190px; scroll-snap-align: start; }
  .service-grid, .matrix-grid, .content-grid, .support-list, .feature-pills, .form-grid { grid-template-columns: 1fr; }
  .split-row, .split-row.reverse { grid-template-columns: 1fr; gap: 18px; }
  .split-row.reverse .split-media { order: 0; }
  .matrix-card img { height: 168px; }
  .section { padding: 38px 0; }
  .page-hero { padding: 34px 0 20px; }
  .page-media, .split-media { min-height: 210px; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; padding: 38px 0; }
  .footer-links { grid-template-columns: 1fr; gap: 14px; }
  .footer-bottom { flex-direction: column; }
}