:root {
  --navy: #0b2f52;
  --blue: #145d82;
  --cyan: #158ba0;
  --orange: #f07a2f;
  --green: #17805e;
  --ink: #172230;
  --muted: #607083;
  --line: #d6e2ec;
  --paper: #ffffff;
  --soft: #f4f8fb;
  --soft-blue: #eaf4f8;
  --shadow: 0 16px 46px rgba(11, 47, 82, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #eef3f6;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.65;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgba(255,255,255,.12);
  background: rgba(7, 37, 65, .96);
  color: #fff;
  backdrop-filter: blur(12px);
}
.nav-wrap {
  width: min(1180px, calc(100% - 32px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, #1da0af, #f07a2f);
  font-weight: 900;
}
.brand strong { display: block; font-size: 18px; }
.brand small { display: block; color: #bcd2df; font-size: 11px; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a {
  color: #d8e8ef;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}
.nav-links a:hover { color: #fff; }
.nav-cta {
  padding: 9px 14px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 8px;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 10% 10%, rgba(21,139,160,.28), transparent 35%),
    linear-gradient(135deg, #071f38 0%, #0d3f64 58%, #0d6674 100%);
  color: #fff;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .13;
  background-image:
    linear-gradient(rgba(255,255,255,.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.2) 1px, transparent 1px);
  background-size: 36px 36px;
}
.hero-inner {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 74px 0 64px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, .9fr);
  gap: 54px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 11px;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 999px;
  color: #d9eef3;
  font-size: 13px;
  font-weight: 800;
}
.hero h1 {
  max-width: 720px;
  margin: 18px 0 18px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.08;
  letter-spacing: -.03em;
}
.hero h1 span { color: #ffab68; }
.hero-lead {
  max-width: 690px;
  margin: 0;
  color: #d9e8ef;
  font-size: 18px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  min-height: 46px;
  padding: 11px 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 900;
}
.btn-primary { background: var(--orange); color: #fff; }
.btn-secondary { border-color: rgba(255,255,255,.35); color: #fff; }
.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 30px;
  color: #c9dce5;
  font-size: 13px;
}
.hero-proof strong { display: block; color: #fff; font-size: 21px; }
.hero-visual {
  position: relative;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 18px;
  padding: 10px;
  background: rgba(255,255,255,.08);
  box-shadow: 0 24px 60px rgba(0,0,0,.22);
}
.hero-visual img {
  width: 100%;
  max-height: 470px;
  border-radius: 12px;
  object-fit: cover;
  object-position: center top;
}
.visual-note {
  position: absolute;
  right: -12px;
  bottom: 22px;
  width: min(280px, 75%);
  padding: 14px 16px;
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  box-shadow: var(--shadow);
  font-size: 13px;
}
.visual-note strong { display: block; color: var(--navy); font-size: 15px; }

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0 0;
}
.section-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 26px;
}
.section-kicker {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
}
.section h2 {
  margin: 5px 0 0;
  color: var(--navy);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.2;
}
.section-head p {
  max-width: 530px;
  margin: 0;
  color: var(--muted);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.tool-card {
  position: relative;
  min-height: 284px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
  box-shadow: 0 8px 26px rgba(11,47,82,.06);
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.tool-card:hover {
  transform: translateY(-4px);
  border-color: #91bbce;
  box-shadow: var(--shadow);
}
.tool-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.tool-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--soft-blue);
  color: var(--navy);
  font-weight: 900;
}
.tag {
  padding: 5px 9px;
  border-radius: 999px;
  background: #eef5f8;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
}
.tag.orange { background: #fff1e5; color: #b95616; }
.tag.green { background: #e8f6f0; color: #146d51; }
.tool-card h3 {
  margin: 20px 0 9px;
  color: var(--navy);
  font-size: 21px;
  line-height: 1.35;
}
.tool-card p { margin: 0; color: var(--muted); font-size: 14px; }
.tool-meta {
  margin-top: auto;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.quick-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}
.quick-card h3 { margin: 0 0 8px; color: var(--navy); }
.quick-card p { margin: 0 0 14px; color: var(--muted); font-size: 14px; }
.quick-card a { color: var(--blue); font-weight: 900; }

.cooperation {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .55fr);
  gap: 32px;
  padding: 34px;
  border-radius: 18px;
  background: linear-gradient(135deg, #0b3153, #126c78);
  color: #fff;
}
.cooperation h2 { color: #fff; }
.cooperation p { color: #d8e9ee; }
.service-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}
.service-item {
  padding: 14px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 10px;
  background: rgba(255,255,255,.07);
}
.service-item strong { display: block; }
.service-item small { color: #c9dce4; }
.qr-panel {
  display: grid;
  place-items: center;
  align-content: center;
  padding: 24px;
  border-radius: 14px;
  background: #fff;
  color: var(--ink);
  text-align: center;
}
.qr-panel img { width: 190px; height: 190px; }
.qr-panel strong { margin-top: 12px; color: var(--navy); }
.qr-panel small { color: var(--muted); }
.qr-panel small a { color: var(--blue); }

.ad-slot {
  min-height: 128px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 24px 28px;
  border: 1px dashed #9db6c8;
  border-radius: 14px;
  background:
    linear-gradient(120deg, rgba(20,93,130,.04), rgba(240,122,47,.06)),
    #fff;
}
.ad-slot span {
  display: inline-block;
  margin-bottom: 5px;
  color: var(--orange);
  font-size: 12px;
  font-weight: 900;
}
.ad-slot h3 { margin: 0 0 5px; color: var(--navy); }
.ad-slot p { margin: 0; color: var(--muted); font-size: 14px; }
.ad-slot a {
  white-space: nowrap;
  color: var(--blue);
  font-weight: 900;
}

.site-footer {
  margin-top: 72px;
  padding: 34px 0;
  background: #091f35;
  color: #b9ced9;
}
.footer-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}
.footer-inner strong { display: block; color: #fff; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links a { color: #d9e7ed; text-decoration: none; }
.legal { margin-top: 7px; font-size: 12px; }

@media (max-width: 920px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .hero-inner { grid-template-columns: 1fr; padding-top: 54px; }
  .hero-visual { max-width: 620px; }
  .tool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .quick-grid { grid-template-columns: 1fr; }
  .cooperation { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .nav-wrap { width: min(100% - 22px, 1180px); }
  .brand small { display: none; }
  .nav-cta { font-size: 12px; }
  .hero-inner, .section { width: min(100% - 22px, 1180px); }
  .hero-inner { padding: 44px 0 48px; }
  .hero h1 { font-size: 38px; }
  .hero-lead { font-size: 16px; }
  .hero-proof { gap: 14px; }
  .visual-note { right: 8px; }
  .section { padding-top: 54px; }
  .section-head { display: block; }
  .section-head p { margin-top: 12px; }
  .tool-grid { grid-template-columns: 1fr; }
  .tool-card { min-height: 250px; }
  .service-list { grid-template-columns: 1fr; }
  .cooperation { padding: 24px 18px; }
  .ad-slot { grid-template-columns: 1fr; padding: 22px; }
  .footer-inner { display: block; }
  .footer-links { margin-top: 18px; }
}