:root {
  --bg: #f6f8ff;
  --surface: #ffffff;
  --surface-2: #eef3ff;
  --ink: #111827;
  --muted: #5f6b7a;
  --primary: #1b4dff;
  --primary-2: #0f2f9f;
  --accent: #16c7a1;
  --warning: #ff9f1c;
  --line: rgba(17, 24, 39, .10);
  --shadow: 0 24px 70px rgba(18, 36, 97, .13);
  --shadow-soft: 0 16px 44px rgba(18, 36, 97, .08);
  --radius: 24px;
  --radius-lg: 34px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(27, 77, 255, .14), transparent 38rem),
    radial-gradient(circle at 88% 12%, rgba(22, 199, 161, .16), transparent 30rem),
    var(--bg);
  line-height: 1.65;
}

a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.muted-note { color: var(--muted); }

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(246, 248, 255, .84);
  border-bottom: 1px solid rgba(17, 24, 39, .08);
}
.nav {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  letter-spacing: -.02em;
  font-size: 20px;
  white-space: nowrap;
}
.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 14px 30px rgba(27, 77, 255, .22);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #334155;
  font-size: 15px;
}
.nav-links a { position: relative; }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 2px;
  border-radius: 99px;
  background: var(--primary);
  transition: width .25s ease;
}
.nav-links a:hover::after,
.nav-links a:focus-visible::after { width: 100%; }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.menu-btn { display: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 15px 35px rgba(27, 77, 255, .24);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn,
.btn:visited,
.btn:hover,
.btn:focus,
.btn:focus-visible,
.btn:active { color: #fff; }
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 44px rgba(27, 77, 255, .30);
  background: #163fe0;
}
.btn:active {
  transform: translateY(0);
  box-shadow: 0 10px 24px rgba(27, 77, 255, .22);
  background: #1134bf;
}
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(27, 77, 255, .14), 0 15px 35px rgba(27, 77, 255, .24);
}
.btn.secondary {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
  box-shadow: var(--shadow-soft);
}
.btn.secondary,
.btn.secondary:visited,
.btn.secondary:hover,
.btn.secondary:focus,
.btn.secondary:focus-visible,
.btn.secondary:active { color: var(--ink); }
.btn.secondary:hover { background: #f8fbff; }
.btn.secondary:active { background: #edf3ff; }
.btn.ghost {
  background: rgba(255, 255, 255, .65);
  color: var(--primary);
  border-color: rgba(27, 77, 255, .16);
  box-shadow: none;
}
.btn.ghost,
.btn.ghost:visited,
.btn.ghost:hover,
.btn.ghost:focus,
.btn.ghost:focus-visible,
.btn.ghost:active { color: var(--primary); }
.btn.ghost:hover { background: rgba(255, 255, 255, .92); }
.btn.ghost:active { background: rgba(238, 243, 255, .98); }

.hero {
  position: relative;
  padding: 92px 0 72px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.04fr .96fr;
  align-items: center;
  gap: 48px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  color: #0f2f9f;
  background: rgba(27, 77, 255, .09);
  border: 1px solid rgba(27, 77, 255, .14);
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 20px;
}
.pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 8px rgba(22, 199, 161, .16);
}

h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.02;
  letter-spacing: -.07em;
  max-width: 780px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--primary), #7645ff 48%, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lead {
  margin: 24px 0 0;
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.trust-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 38px;
  max-width: 760px;
}
.trust-item {
  padding: 16px 14px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .7);
  border: 1px solid rgba(17, 24, 39, .08);
  box-shadow: 0 8px 25px rgba(18, 36, 97, .06);
}
.trust-item strong { display: block; font-size: 24px; line-height: 1.1; letter-spacing: -.03em; }
.trust-item span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; }
.hero-card-wrap { position: relative; }
.hero-card-wrap::before {
  content: "";
  position: absolute;
  inset: 8% -2% -4% 8%;
  background: linear-gradient(135deg, rgba(27,77,255,.22), rgba(22,199,161,.20));
  filter: blur(35px);
  border-radius: 50%;
  z-index: -1;
}
.dashboard {
  border-radius: var(--radius-lg);
  padding: 22px;
  background: rgba(255, 255, 255, .82);
  border: 1px solid rgba(255, 255, 255, .9);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.dash-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.dash-title { font-weight: 900; font-size: 18px; }
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(22, 199, 161, .1);
  color: #08745f;
  font-size: 13px;
  font-weight: 800;
}
.task-card {
  margin-top: 18px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid rgba(17, 24, 39, .08);
  background: linear-gradient(180deg, #fff, #f8fbff);
}
.task-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.file-icon {
  width: 46px;
  height: 46px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: rgba(27,77,255,.10);
  color: var(--primary);
  flex: 0 0 auto;
}
.file-info { flex: 1; min-width: 0; }
.file-info b { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-info small { color: var(--muted); }
.progress {
  height: 11px;
  background: #e7ecf7;
  border-radius: 999px;
  overflow: hidden;
}
.progress span {
  display: block;
  height: 100%;
  width: 82%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  animation: loading 2.8s ease-in-out infinite alternate;
}
@keyframes loading { from { width: 67%; } to { width: 91%; } }
.task-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 16px;
}
.meta-box {
  padding: 12px;
  border-radius: 16px;
  background: var(--surface-2);
  font-size: 13px;
  color: var(--muted);
}
.meta-box strong { display: block; color: var(--ink); font-size: 16px; }
.timeline { margin: 18px 0 0; padding: 0; list-style: none; }
.timeline li {
  position: relative;
  display: flex;
  gap: 12px;
  padding: 10px 0;
  color: #334155;
  font-size: 14px;
}
.timeline li::before {
  content: "";
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(27,77,255,.14);
  border: 5px solid #fff;
  box-shadow: 0 0 0 1px rgba(27,77,255,.12);
  flex: 0 0 auto;
  margin-top: 2px;
}
.timeline li.done::before { background: var(--accent); }

.section { padding: 86px 0; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 34px;
}
.section-kicker {
  color: var(--primary);
  font-weight: 900;
  letter-spacing: .08em;
  font-size: 13px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-kicker-light { color: #b7f6e9; }
h2 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.12;
  letter-spacing: -.04em;
}
.section-desc {
  margin: 0;
  max-width: 470px;
  color: var(--muted);
  font-size: 16px;
}
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card {
  position: relative;
  padding: 26px;
  border-radius: var(--radius);
  background: rgba(255,255,255,.84);
  border: 1px solid rgba(17, 24, 39, .08);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute;
  right: -42px;
  top: -42px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: rgba(27,77,255,.06);
}
.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(27,77,255,.12), rgba(22,199,161,.12));
  color: var(--primary);
  margin-bottom: 22px;
}
.card h3 { margin: 0 0 10px; font-size: 20px; letter-spacing: -.02em; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.platform-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.platform {
  display: flex;
  gap: 18px;
  padding: 24px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}
.platform-logo {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), #7c4dff);
  flex: 0 0 auto;
}
.platform:nth-child(2n) .platform-logo { background: linear-gradient(135deg, var(--accent), #22a6f2); }
.platform h3 { margin: 0 0 8px; font-size: 18px; }
.platform p { margin: 0; color: var(--muted); font-size: 15px; }
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step {
  counter-increment: step;
  position: relative;
  padding: 28px;
  min-height: 245px;
  border-radius: var(--radius);
  background: #111827;
  color: #fff;
  overflow: hidden;
  box-shadow: 0 24px 56px rgba(17,24,39,.16);
}
.step::before {
  content: "0" counter(step);
  position: absolute;
  right: 20px;
  top: 10px;
  font-size: 74px;
  font-weight: 900;
  line-height: 1;
  color: rgba(255,255,255,.08);
  letter-spacing: -.06em;
}
.step span {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 15px;
  background: rgba(255,255,255,.11);
  margin-bottom: 44px;
}
.step h3 { margin: 0 0 10px; font-size: 20px; }
.step p { margin: 0; color: rgba(255,255,255,.72); font-size: 15px; }
.step:nth-child(2) { background: var(--primary-2); }
.step:nth-child(3) { background: #0f766e; }
.step:nth-child(4) { background: #5b21b6; }
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.price-card {
  padding: 30px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}
.price-card.featured {
  background: linear-gradient(180deg, #122461, #0b173f);
  color: #fff;
  transform: translateY(-12px);
  box-shadow: 0 30px 80px rgba(18,36,97,.28);
}
.badge {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(27,77,255,.10);
  color: var(--primary);
  font-size: 13px;
  font-weight: 900;
  margin-bottom: 18px;
}
.featured .badge { background: rgba(255,255,255,.12); color: #fff; }
.price-card h3 { margin: 0 0 12px; font-size: 24px; }
.price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 10px 0 20px;
  font-weight: 900;
}
.price strong { font-size: 38px; letter-spacing: -.05em; }
.price span { color: var(--muted); }
.featured .price span, .featured p, .featured li { color: rgba(255,255,255,.74); }
.price-card p { color: var(--muted); margin: 0 0 20px; }
.price-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.price-card li { display: flex; gap: 10px; color: #334155; font-size: 15px; }
.price-card li::before { content: "✓"; color: var(--accent); font-weight: 900; }
.price-card .btn { width: 100%; margin-top: 26px; }
.portal-section { padding-top: 0; }
.portal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.portal-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}
.portal-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  color: #fff;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}
.portal-card h3 { margin: 0 0 10px; font-size: 22px; }
.portal-card p { margin: 0 0 22px; color: var(--muted); }
.portal-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.order-wrap {
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  gap: 28px;
  align-items: stretch;
}
.order-panel {
  padding: 34px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(27,77,255,.93), rgba(15,47,159,.95)), #1232aa;
  color: #fff;
  box-shadow: var(--shadow);
}
.order-panel h2 { color: #fff; }
.order-panel p { color: rgba(255,255,255,.78); }
.contact-list { display: grid; gap: 14px; margin-top: 28px; }
.contact-item {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 16px;
  border-radius: 20px;
  background: rgba(255,255,255,.11);
  border: 1px solid rgba(255,255,255,.12);
}
.contact-item b { display: block; }
.contact-item small { color: rgba(255,255,255,.7); }
.order-form {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 8px; margin-bottom: 16px; }
.field.full { grid-column: 1 / -1; }
label { font-weight: 900; font-size: 14px; }
input, select, textarea {
  width: 100%;
  border: 1px solid rgba(17,24,39,.12);
  border-radius: 16px;
  background: #f8fbff;
  padding: 14px 15px;
  color: var(--ink);
  outline: none;
  transition: border .2s ease, box-shadow .2s ease;
}
textarea { min-height: 118px; resize: vertical; }
input:focus, select:focus, textarea:focus {
  border-color: rgba(27,77,255,.55);
  box-shadow: 0 0 0 4px rgba(27,77,255,.10);
}
.form-note {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255,159,28,.10);
  color: #804a00;
  font-size: 14px;
  margin-bottom: 16px;
}
.form-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.generated {
  display: none;
  margin-top: 18px;
  padding: 16px;
  border-radius: 16px;
  background: #f3f7ff;
  border: 1px dashed rgba(27,77,255,.35);
  color: #334155;
  white-space: pre-wrap;
  font-size: 14px;
}
.faq { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
details {
  border-radius: 22px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 12px 32px rgba(18,36,97,.06);
  overflow: hidden;
}
summary {
  cursor: pointer;
  padding: 22px 24px;
  font-weight: 900;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--primary); font-size: 24px; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { margin: 0; padding: 0 24px 24px; color: var(--muted); }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.blog-card {
  display: grid;
  gap: 16px;
  padding: 20px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}
.blog-thumb {
  height: 150px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(27,77,255,.82), rgba(22,199,161,.74)), radial-gradient(circle at 75% 20%, rgba(255,255,255,.55), transparent 20%);
}
.blog-card time { color: var(--muted); font-size: 13px; }
.blog-card h3 { margin: 0; font-size: 20px; line-height: 1.35; }
.blog-card p { margin: 0; color: var(--muted); font-size: 15px; }
.cta { padding: 72px 0; }
.cta-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 44px;
  border-radius: 36px;
  color: #fff;
  background: radial-gradient(circle at 85% 30%, rgba(22,199,161,.46), transparent 25rem), linear-gradient(135deg, #101827, #1232aa 70%);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.cta-box h2 { color: #fff; }
.cta-box p { margin: 14px 0 0; color: rgba(255,255,255,.78); max-width: 720px; }
footer {
  padding: 58px 0 34px;
  background: #0b1020;
  color: #fff;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 28px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,.10);
}
footer p, footer a, footer li { color: rgba(255,255,255,.66); }
footer h3 { margin: 0 0 14px; font-size: 16px; }
footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.copyright {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 24px;
  color: rgba(255,255,255,.52);
  font-size: 14px;
}
.float-contact {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 40;
  display: grid;
  gap: 10px;
}
.float-contact a {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 18px;
  color: #fff;
  background: var(--primary);
  box-shadow: 0 18px 40px rgba(27,77,255,.28);
}
.float-contact a:nth-child(2) { background: var(--accent); }

@media (max-width: 1040px) {
  .hero-grid, .order-wrap, .portal-grid { grid-template-columns: 1fr; }
  .cards, .process { grid-template-columns: repeat(2, 1fr); }
  .pricing { grid-template-columns: 1fr; }
  .price-card.featured { transform: none; }
  .nav-links {
    position: fixed;
    inset: 78px 20px auto 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    border-radius: 24px;
    background: rgba(255,255,255,.96);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .menu-btn {
    display: inline-flex;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: #fff;
    align-items: center;
    justify-content: center;
    cursor: pointer;
  }
}
@media (max-width: 720px) {
  .container { width: min(100% - 28px, var(--max)); }
  .hero { padding: 56px 0 46px; }
  .section { padding: 58px 0; }
  .section-head, .cta-box { grid-template-columns: 1fr; display: grid; }
  .trust-row, .cards, .platform-grid, .process, .faq, .blog-grid, .footer-grid { grid-template-columns: 1fr; }
  .form-grid, .task-meta { grid-template-columns: 1fr; }
  .nav-actions .btn { display: none; }
  h1 { letter-spacing: -.05em; }
  .cta-box, .order-panel, .order-form, .portal-card { padding: 26px; border-radius: 28px; }
  .float-contact { right: 14px; bottom: 14px; }
}