:root {
  --primary: #002FA7;
  --primary-dark: #002FA7;
  --primary-deep: #001B68;
  --primary-soft: #E9EEFF;
  --primary-tint: #F8FAFF;
  --bg-light: #F8FAFF;
  --bg-white: rgba(255,255,255,0.82);
  --text-main: #0D1530;
  --text-muted: #536079;
  --border: rgba(0,47,167,0.14);
  --accent: #E8FF00;
  --paper: rgba(255,255,255,0.82);
  --surface: rgba(255,255,255,0.86);
  --shadow: 0 20px 50px rgba(0,47,167,0.10);
  --radius: 10px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: radial-gradient(circle at 74% 6%, rgba(0,47,167,0.18), transparent 28%), linear-gradient(180deg, #FFFFFF 0%, #E9EEFF 100%);
  color: var(--text-main);
  line-height: 1.72;
  min-height: 100vh;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(rgba(0,47,167,0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(0,47,167,0.045) 1px, transparent 1px);
  opacity: 1;
}
a { color: inherit; }
nav {
  position: fixed;
  top: 18px;
  left: 24px;
  right: 24px;
  height: 66px;
  background: rgba(255,255,255,0.78);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 28px;
  z-index: 1000;
  box-shadow: 0 18px 44px rgba(0,47,167,0.10);
}
.logo { color: var(--primary); text-decoration: none; display: inline-flex; align-items: center; flex: 0 0 auto; gap: 0; font-size: 0; line-height: 0; }
.logo img { width: 138px; height: auto; border-radius: 0; display: block; }
.nav-links { display: flex; gap: 28px; list-style: none; align-items: center; }
.nav-links a { text-decoration: none; color: var(--text-main); font-size: 0.86rem; font-weight: 800; transition: color 0.22s ease, border-color 0.22s ease, background 0.22s ease; }
.nav-links a:hover { color: var(--primary); }
.dropdown { position: relative; padding-bottom: 16px; margin-bottom: -16px; }
.dropdown-menu {
  position: absolute;
  top: calc(100% - 2px);
  left: 0;
  background: var(--paper);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 8px 0;
  min-width: 210px;
  display: none;
  border-radius: 8px;
}
.dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a { display: block; padding: 9px 20px; font-size: 0.84rem; color: var(--text-main); }
.dropdown-menu a:hover { color: var(--primary); background: rgba(233,238,255,0.72); }
.cta-nav { color: var(--primary) !important; }
.mobile-menu { display: none; position: relative; }
.mobile-menu-toggle {
  list-style: none;
  width: 42px;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,0.86);
  color: var(--primary);
  cursor: pointer;
  font-size: 0.84rem;
  font-weight: 900;
  line-height: 1;
}
.mobile-menu-toggle::-webkit-details-marker { display: none; }
.mobile-menu-icon,
.mobile-menu-icon::before,
.mobile-menu-icon::after {
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  content: "";
}
.mobile-menu-icon {
  position: relative;
}
.mobile-menu-icon::before,
.mobile-menu-icon::after {
  position: absolute;
  left: 0;
}
.mobile-menu-icon::before { top: -5px; }
.mobile-menu-icon::after { top: 5px; }
.mobile-menu-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: min(310px, calc(100vw - 24px));
  max-height: calc(100vh - 96px);
  overflow: auto;
  display: grid;
  gap: 6px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,0.96);
  box-shadow: 0 20px 50px rgba(0,47,167,0.16);
  backdrop-filter: blur(16px);
}
.mobile-menu:not([open]) .mobile-menu-panel { display: none; }
.mobile-menu-link,
.mobile-menu-primary,
.mobile-subnav a {
  display: flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 850;
}
.mobile-menu-link,
.mobile-menu-primary {
  color: var(--text-main);
}
.mobile-menu-link:hover,
.mobile-menu-link:focus-visible,
.mobile-menu-link.is-active,
.mobile-menu-primary:hover,
.mobile-menu-primary:focus-visible,
.mobile-menu-primary.is-active {
  color: var(--primary);
  background: rgba(233,238,255,0.74);
}
.mobile-menu-section {
  display: grid;
  gap: 4px;
  padding: 4px;
  border: 1px solid rgba(0,47,167,0.10);
  border-radius: 10px;
  background: rgba(248,250,255,0.68);
}
.mobile-menu-primary {
  min-height: 40px;
  color: var(--primary);
  font-weight: 950;
}
.mobile-subnav {
  display: grid;
  gap: 2px;
  padding: 2px 0 4px 14px;
  border-left: 2px solid rgba(0,47,167,0.18);
  margin-left: 14px;
}
.mobile-subnav a {
  min-height: 36px;
  padding: 0 12px;
  color: var(--text-muted);
  font-size: 0.84rem;
  font-weight: 800;
}
.mobile-subnav a:hover,
.mobile-subnav a:focus-visible {
  color: var(--primary);
  background: rgba(233,238,255,0.62);
}
section { padding: 78px 8%; }
section[style*="background"] { background: rgba(255,255,255,0.82) !important; }
.matrix-card { scroll-margin-top: 108px; }
.matrix-card.is-target {
  border-color: var(--primary);
  box-shadow: 0 18px 38px rgba(0,47,167,0.22);
  transform: translateY(-4px);
}
.container { max-width: 1220px; margin: 0 auto; }
.section-tag { color: var(--primary); font-size: 0.72rem; font-weight: 900; text-transform: uppercase; letter-spacing: 0.16em; margin-bottom: 14px; display: block; }
.section-title { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: clamp(2.05rem, 3.2vw, 3.35rem); font-weight: 900; margin-bottom: 42px; letter-spacing: 0; line-height: 1.04; max-width: 980px; }
.hero {
  padding: 142px 8% 36px;
  text-align: left;
  background: radial-gradient(circle at 78% 30%, rgba(0,47,167,0.18), transparent 28%), #F8FAFF;
  overflow: hidden;
  position: relative;
  border-bottom: 1px solid var(--border);
}
.hero::before { content: ""; position: absolute; inset: 96px 8% auto auto; width: 320px; height: 320px; background: conic-gradient(from 90deg, rgba(0,47,167,0.08), rgba(0,47,167,0.34), rgba(232,255,0,0.42), rgba(0,47,167,0.08)); border: 0; transform: rotate(8deg); opacity: 1; pointer-events: none; }
.hero::after { content: "AI TRUST LAB"; position: absolute; right: 8%; bottom: 56px; color: rgba(0,47,167,0.12); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: clamp(3rem, 7vw, 8rem); font-weight: 900; letter-spacing: 0; line-height: 0.8; pointer-events: none; }
.hero h1 { position: relative; z-index: 1; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: clamp(4rem, 8vw, 8.6rem); font-weight: 900; line-height: 0.92; margin-bottom: 30px; letter-spacing: 0; max-width: 980px; }
.hero-title-nowrap { white-space: nowrap; }
.hero h1 span { color: var(--primary); display: inline-block; }
.hero p { position: relative; z-index: 1; max-width: 850px; margin: 0 0 30px; font-size: 1.13rem; color: var(--text-muted); line-height: 1.88; }
.hero > div[style*="display:flex"] { position: relative; z-index: 1; justify-content: flex-start !important; }
.hero-advantage-band {
  margin: 0 6% 0;
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, minmax(270px, 1fr));
  gap: 10px;
}
.hero-advantage-item {
  padding: 22px 30px;
  border: 1px solid rgba(0,47,167,0.14);
  border-radius: 12px;
  background: rgba(255,255,255,0.82);
  box-shadow: 0 18px 40px rgba(0,47,167,0.08);
  backdrop-filter: blur(10px);
  min-height: 148px;
}
.hero-advantage-item strong {
  display: block;
  margin-bottom: 6px;
  color: var(--primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 0;
}
.hero-advantage-item span {
  display: block;
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.5;
}
.problem-section { padding-top: 42px; }
.cta-btn { background: #002FA7; color: #fff; padding: 15px 28px; border-radius: 6px; text-decoration: none; font-weight: 900; display: inline-flex; min-height: 50px; align-items: center; border: 1px solid rgba(21,21,21,0.18); transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease; }
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 36px rgba(0,47,167,0.22); }
.logo-wall { position: relative; z-index: 1; margin: 72px 0 0 0; border-top: 1px solid var(--border); padding-top: 22px; overflow: hidden; max-width: 1120px; mask-image: linear-gradient(90deg, transparent 0, #000 12%, #000 88%, transparent 100%); }
.logo-track { display: flex; gap: 14px; width: max-content; animation: logoMarquee 34s linear infinite; }
.logo-wall:hover .logo-track { animation-play-state: paused; }
.brand-logo { min-width: 148px; height: 42px; padding: 0 18px; border: 1px solid var(--border); background: rgba(255,255,255,0.72); color: #536079; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 0.82rem; transition: all 0.22s ease; border-radius: 4px; }
.brand-logo:hover { background: var(--primary); border-color: var(--primary); color: #fff; transform: translateY(-2px); }
@keyframes logoMarquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.problem-section, .cases-section { background: rgba(233,238,255,0.48); }
.problem-card { background: var(--paper); border-radius: var(--radius); padding: 48px; border: 1px solid var(--border); box-shadow: var(--shadow); display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 44px; align-items: center; position: relative; overflow: hidden; }
.problem-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 6px; background: var(--primary); }
.problem-card h2 { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 2rem; margin-bottom: 22px; color: var(--primary); letter-spacing: 0; }
.problem-card p { font-size: 1.08rem; color: var(--text-main); max-width: 760px; line-height: 1.9; }
.problem-visual {
  min-height: 320px;
  border: 1px solid var(--border);
  background:
    radial-gradient(circle at 50% 50%, rgba(0,47,167,0.16), transparent 28%),
    radial-gradient(circle at 26% 18%, rgba(232,255,0,0.18), transparent 18%),
    linear-gradient(145deg, rgba(255,255,255,0.94), rgba(232,238,255,0.92));
  position: relative;
  overflow: hidden;
  border-radius: 14px;
}
.problem-visual::before,
.problem-visual::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(0,47,167,0.12);
}
.problem-visual::before { width: 248px; height: 248px; }
.problem-visual::after { width: 148px; height: 148px; border-color: rgba(0,47,167,0.24); }
.evidence-layer {
  position: absolute;
  min-width: 148px;
  height: 48px;
  border: 1px solid rgba(0,47,167,0.18);
  background: rgba(255,255,255,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 900;
  border-radius: 999px;
  box-shadow: 0 14px 28px rgba(0,47,167,0.08);
}
.layer-one { left: 50%; top: 42px; transform: translateX(-50%); }
.layer-two { left: 36px; top: 146px; }
.layer-three { right: 36px; top: 146px; }
.evidence-node {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 8px rgba(0,47,167,0.08);
}
.node-a { left: calc(50% - 9px); top: 108px; }
.node-b { left: 128px; top: 146px; }
.node-c { right: 128px; top: 146px; }
.evidence-line {
  position: absolute;
  left: 50%;
  top: 120px;
  width: 2px;
  height: 36px;
  background: linear-gradient(180deg, rgba(0,47,167,0.7), rgba(0,47,167,0.08));
  transform: translateX(-50%);
}
.problem-visual .evidence-line::before,
.problem-visual .evidence-line::after {
  content: "";
  position: absolute;
  top: 34px;
  width: 128px;
  height: 2px;
  background: linear-gradient(90deg, rgba(0,47,167,0.08), rgba(0,47,167,0.7));
}
.problem-visual .evidence-line::before {
  right: 0;
  transform: rotate(24deg);
  transform-origin: right center;
}
.problem-visual .evidence-line::after {
  left: 0;
  transform: rotate(-24deg);
  transform-origin: left center;
}
.objective-grid, .matrix-grid, .cases-grid { display: grid; gap: 18px; }
.objective-grid { grid-template-columns: repeat(3, 1fr); }
.matrix-grid { grid-template-columns: repeat(4, 1fr); }
.cases-grid { grid-template-columns: repeat(3, 1fr); }
.obj-item, .matrix-card, .case-card, .sol-box { background: var(--paper); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: none; }
.obj-item { padding: 28px; border-left: 5px solid var(--primary); transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease; }
.obj-item:hover, .matrix-card:hover, .case-card:hover { transform: translateY(-4px); border-color: var(--primary); box-shadow: 0 16px 34px rgba(0,47,167,0.18); }
.obj-item h4 { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 1.2rem; margin-bottom: 14px; color: var(--text-main); letter-spacing: 0; }
.obj-item p, .matrix-card p, .case-card p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.84; }
.matrix-card { padding: 34px 26px; display: flex; flex-direction: column; justify-content: space-between; transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease, background 0.22s ease; text-decoration: none; color: inherit; cursor: pointer; min-height: 300px; }
.matrix-card h3, .case-card h3 { color: var(--primary); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 1.25rem; margin-bottom: 18px; letter-spacing: 0; line-height: 1.1; }
.matrix-card p, .case-card p { margin-bottom: 28px; flex-grow: 1; }
.matrix-footer, .case-metric { font-size: 0.76rem; color: var(--text-muted); border-top: 1px solid var(--border); padding-top: 15px; font-weight: 800; }
.solution-split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.sol-box { overflow: hidden; transition: transform 0.22s ease, box-shadow 0.22s ease; }
.sol-box:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.scenario-visual { height: 220px; background: #E9EEFF; position: relative; overflow: hidden; }
.scenario-visual.local::before, .scenario-visual.global::before { content: ""; position: absolute; inset: 24px; border: 1px solid rgba(0,47,167,0.22); }
.signal-bar { position: absolute; bottom: 32px; width: 34px; background: var(--primary); opacity: 0.92; }
.signal-bar:nth-child(1) { left: 64px; height: 52px; }
.signal-bar:nth-child(2) { left: 118px; height: 88px; }
.signal-bar:nth-child(3) { left: 172px; height: 122px; }
.signal-bar:nth-child(4) { left: 226px; height: 74px; }
.globe-ring { position: absolute; border: 1px solid rgba(0,47,167,0.45); border-radius: 50%; }
.globe-ring:nth-child(1) { width: 168px; height: 168px; left: 50%; top: 28px; transform: translateX(-50%); }
.globe-ring:nth-child(2) { width: 96px; height: 168px; left: 50%; top: 28px; transform: translateX(-50%); }
.globe-ring:nth-child(3) { width: 168px; height: 72px; left: 50%; top: 76px; transform: translateX(-50%); }
.route-dot { position: absolute; width: 10px; height: 10px; background: var(--primary); border-radius: 50%; box-shadow: 0 0 0 6px rgba(0,47,167,0.12); }
.dot-a { left: 32%; top: 42%; }
.dot-b { right: 30%; top: 28%; }
.dot-c { right: 38%; bottom: 30%; }
.sol-content { padding: 34px; }
.sol-content h3 { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 1.45rem; margin-bottom: 14px; letter-spacing: 0; }
.case-card { padding: 34px 28px; min-height: 268px; display: flex; flex-direction: column; justify-content: space-between; transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease; }
.case-tag { color: var(--primary); font-size: 0.72rem; font-weight: 900; margin-bottom: 20px; display: block; letter-spacing: 0.12em; text-transform: uppercase; }
.insight-section { background: rgba(233,238,255,0.5); }
.insight-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr); gap: 22px; align-items: stretch; }
.authority-block { background: rgba(255,255,255,0.86); color: var(--text-main); border: 1px solid var(--border); border-top: 5px solid var(--primary); border-radius: var(--radius); padding: 0; overflow: hidden; box-shadow: var(--shadow); position: relative; display: grid; grid-template-columns: 0.86fr 1.28fr; min-height: 440px; text-decoration: none; cursor: pointer; transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease; }
.authority-block:hover,
.authority-block:focus-visible {
  border-color: var(--primary);
  box-shadow: 0 22px 48px rgba(0,47,167,0.18);
  transform: translateY(-4px);
}
#authority.is-target .authority-block {
  border-color: var(--primary);
  box-shadow: 0 22px 48px rgba(0,47,167,0.22);
  transform: translateY(-4px);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.authority-block::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(0,47,167,0.07), transparent 48%); pointer-events: none; }
.insight-visual {
  position: relative;
  z-index: 1;
  min-height: 440px;
  border-right: 1px solid var(--border);
  background:
    radial-gradient(circle at 50% 54%, rgba(0,47,167,0.18), transparent 26%),
    radial-gradient(circle at 26% 18%, rgba(232,255,0,0.16), transparent 18%),
    linear-gradient(180deg, rgba(242,246,255,0.96), rgba(228,235,255,0.9));
  overflow: hidden;
}
.insight-visual::before,
.insight-visual::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}
.insight-visual::before {
  width: 286px;
  height: 286px;
  border: 1px solid rgba(0,47,167,0.14);
}
.insight-visual::after {
  width: 154px;
  height: 154px;
  border: 1px solid rgba(0,47,167,0.26);
}
.insight-card {
  position: absolute;
  left: 50%;
  bottom: 60px;
  transform: translateX(-50%);
  width: 82%;
  min-width: 286px;
  padding: 20px 26px;
  border: 1px solid rgba(0,47,167,0.16);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border-radius: 18px;
  text-align: center;
}
.insight-card strong { display: block; font-size: 1.02rem; margin-bottom: 8px; white-space: nowrap; }
.insight-card span { color: var(--text-muted); font-size: 0.84rem; }
.insight-mark {
  position: absolute;
  left: 50%;
  top: 72px;
  transform: translateX(-50%);
  width: 90px;
  height: 90px;
  border: 0;
  color: #fff;
  background: linear-gradient(145deg, #002FA7, #1A46D7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 900;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  border-radius: 999px;
  box-shadow: 0 18px 38px rgba(0,47,167,0.16);
}
.auth-text { position: relative; z-index: 1; max-width: 980px; padding: 34px 8% 72px 7%; display: grid; align-content: start; }
.auth-text h3 { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: clamp(2rem, 3vw, 2.6rem); line-height: 1.08; margin: 0 0 22px; font-weight: 900; letter-spacing: 0; }
.auth-text p { font-size: 1.04rem; line-height: 1.82; max-width: 980px; color: var(--text-muted); margin: 0; }
.auth-text blockquote { color: var(--primary); border-left: 4px solid var(--primary); padding-left: 22px; margin: 30px 0; font-size: 1.28rem; line-height: 1.62; font-weight: 900; font-style: normal; }
.auth-link { color: var(--primary); font-size: 1rem; font-weight: 900; text-decoration: underline; text-underline-offset: 5px; display: inline-flex; }
.insight-sidecard {
  position: relative;
  display: grid;
  grid-template-rows: auto auto;
  gap: 26px;
  padding: 34px 32px 32px;
  border: 1px solid var(--border);
  border-top: 5px solid rgba(0,47,167,0.72);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 78% 16%, rgba(232,255,0,0.18), transparent 20%),
    linear-gradient(180deg, rgba(255,255,255,0.92), rgba(242,246,255,0.92));
  box-shadow: var(--shadow);
  overflow: hidden;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.insight-sidecard:hover,
.insight-sidecard:focus-visible {
  border-color: var(--primary);
  box-shadow: 0 22px 48px rgba(0,47,167,0.18);
  transform: translateY(-4px);
}
.insight-sidecard::before {
  content: "";
  position: absolute;
  right: -46px;
  top: -46px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,47,167,0.12), transparent 68%);
}
.insight-sidecard > * { position: relative; z-index: 1; }
.insight-sidecard > div:first-child { display: grid; align-content: start; }
.insight-sidecard h3 {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(2rem, 3vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: 0;
  margin: 0 0 22px;
  font-weight: 900;
  color: var(--text-main);
}
.insight-sidecard p {
  color: var(--text-muted);
  font-size: 1.04rem;
  line-height: 1.82;
  margin: 0;
}
.insight-sidecard blockquote {
  margin: 30px 0 0;
  padding-left: 22px;
  border-left: 4px solid var(--primary);
  color: var(--primary);
  font-size: 1.28rem;
  line-height: 1.62;
  font-weight: 900;
  font-style: normal;
}
.insight-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}
.insight-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(0,47,167,0.14);
  border-radius: 999px;
  color: var(--primary);
  background: rgba(255,255,255,0.86);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}
.insight-mini-visual {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}
.insight-mini-visual span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 86px;
  padding: 14px 10px;
  border: 1px solid rgba(0,47,167,0.16);
  border-radius: 14px;
  background: rgba(233,238,255,0.82);
  color: var(--primary);
  font-weight: 900;
  font-size: 0.84rem;
  text-align: center;
  line-height: 1.45;
}
footer { padding: 80px 8%; background: var(--paper); border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 60px; }
.contact-cta { background: linear-gradient(145deg, #001B68 0%, #002FA7 58%, #1A46D7 100%); color: #fff; border-radius: var(--radius); padding: 60px; text-align: center; margin-bottom: 80px; box-shadow: 0 16px 34px rgba(0,47,167,0.18); border: 1px solid transparent; }
.contact-cta h2 { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: clamp(2rem, 4vw, 4rem); line-height: 1.06; margin-bottom: 24px; letter-spacing: 0; }
.contact-cta .cta-btn { background: #fff !important; color: var(--primary) !important; }
.subpage { display: none; padding-top: 120px; }
.active { display: block; }
#homepage { display: block; }
@media (max-width: 900px) {
  nav { top: 10px; left: 12px; right: 12px; padding: 0 16px; gap: 12px; }
  .logo img { width: 120px; }
  .nav-links { display: none; }
  .cta-nav { display: none; }
  section { padding: 72px 6%; }
  .hero { padding: 130px 6% 56px; text-align: left; }
  .hero::before, .hero::after { opacity: 0.18; }
  .hero h1 { font-size: clamp(1.95rem, 9.8vw, 3.25rem); }
  .problem-card, .solution-split, .authority-block, .insight-grid { grid-template-columns: 1fr; display: grid; }
  .hero-advantage-band, .objective-grid, .matrix-grid, .cases-grid { grid-template-columns: 1fr; }
  .auth-text { padding: 40px 28px; }
  .insight-visual { min-height: 250px; border-right: 0; border-bottom: 1px solid var(--border); }
  .insight-sidecard { padding: 28px 24px; }
  .insight-mini-visual {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }
  .insight-mini-visual span {
    min-width: 0;
    padding: 10px 8px;
    font-size: 0.84rem;
    white-space: nowrap;
  }
  .footer-grid { grid-template-columns: 1fr; }
}



.cases-section { background: linear-gradient(180deg, rgba(233,238,255,0.62), rgba(248,250,255,0.92)); position: relative; overflow: hidden; }
.cases-section::before { content: ""; position: absolute; inset: 36px 8% auto auto; width: 220px; height: 220px; border: 1px solid rgba(0,47,167,0.16); border-radius: 50%; background: radial-gradient(circle, rgba(0,47,167,0.08), transparent 62%); pointer-events: none; }
.cases-lead { max-width: 780px; margin: -24px 0 40px; color: var(--text-muted); font-size: 1.02rem; line-height: 1.9; }
.cases-proof .cases-grid { gap: 22px; align-items: stretch; }
.cases-proof .case-card { position: relative; padding: 34px 28px 28px; min-height: 430px; background: rgba(255,255,255,0.78); border: 1px solid rgba(0,47,167,0.16); box-shadow: 0 20px 50px rgba(0,47,167,0.08); overflow: hidden; }
.cases-proof .case-card::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 5px; background: linear-gradient(90deg, #002FA7, #1A46D7, #E8FF00); }
.case-index { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; color: rgba(0,47,167,0.18); font-size: 2.5rem; font-weight: 900; line-height: 0.9; margin-bottom: 22px; letter-spacing: 0; }
.case-business { display: inline-flex; width: fit-content; margin: 0 0 18px; padding: 7px 10px; border-radius: 999px; background: rgba(0,47,167,0.08); color: var(--primary); font-size: 0.75rem; font-weight: 900; }
.case-detail-list { display: grid; gap: 10px; margin: 22px 0 24px; }
.case-detail-list span { display: block; padding: 12px 14px; border: 1px solid rgba(0,47,167,0.10); border-radius: 8px; background: rgba(248,250,255,0.68); color: var(--text-muted); font-size: 0.82rem; line-height: 1.7; }
.case-detail-list strong { display: block; color: var(--primary); margin-bottom: 3px; font-size: 0.76rem; }
@media (max-width: 900px) { .cases-lead { margin-top: -18px; } .cases-proof .case-card { min-height: auto; } }


.cases-section.cases-slider { background: radial-gradient(circle at 78% 18%, rgba(0,47,167,0.14), transparent 28%), linear-gradient(180deg, rgba(233,238,255,0.62), rgba(248,250,255,0.96)); position: relative; overflow: hidden; }
.cases-headline { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 34px; }
.cases-headline .section-title { margin-bottom: 0; }
.cases-lead { max-width: 520px; color: var(--text-muted); font-size: 1rem; line-height: 1.86; }
.case-slider-shell { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(880px, 92%); gap: 24px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding: 8%; padding: 4px 8% 22px 0; margin-right: -8%; }
.case-slider-shell::-webkit-scrollbar { height: 8px; }
.case-slider-shell::-webkit-scrollbar-thumb { background: rgba(0,47,167,0.28); border-radius: 999px; }
.case-slide { scroll-snap-align: start; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.86fr); gap: 26px; min-height: 360px; padding: 34px; border: 1px solid rgba(0,47,167,0.16); border-radius: 18px; background: rgba(255,255,255,0.78); box-shadow: 0 20px 50px rgba(0,47,167,0.08); position: relative; overflow: hidden; }
.case-slide::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 7px; background: linear-gradient(180deg, #002FA7, #1A46D7, #E8FF00); }
.case-slide-main, .case-evidence-panel { position: relative; z-index: 1; }
.case-eyebrow { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 26px; }
.case-index { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; color: rgba(0,47,167,0.22); font-size: 3.3rem; font-weight: 900; line-height: 0.82; letter-spacing: 0; margin-right: 8px; }
.case-tag { color: var(--primary); font-size: 0.72rem; font-weight: 900; letter-spacing: 0.12em; text-transform: uppercase; }
.case-business { display: inline-flex; width: fit-content; padding: 7px 10px; border-radius: 999px; background: rgba(0,47,167,0.08); color: var(--primary); font-size: 0.75rem; font-weight: 900; }
.case-slide h3 { color: var(--primary); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: clamp(2rem, 3.2vw, 3.45rem); line-height: 1.06; letter-spacing: 0; margin-bottom: 22px; }
.case-slide p { color: var(--text-muted); font-size: 1.02rem; line-height: 1.88; }
.case-metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 34px; }
.case-metric-row span { display: flex; min-height: 74px; align-items: center; justify-content: center; border-radius: 12px; background: rgba(0,47,167,0.08); color: var(--primary); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-weight: 900; text-align: center; }
.case-evidence-panel { display: grid; gap: 12px; align-content: center; }
.case-evidence-panel div { padding: 16px 18px; border: 1px solid rgba(0,47,167,0.12); border-radius: 12px; background: rgba(248,250,255,0.72); }
.case-evidence-panel strong { display: block; color: var(--primary); font-size: 0.8rem; margin-bottom: 5px; }
.case-evidence-panel span { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }
.case-metric { margin-top: 4px; padding-top: 16px; border-top: 1px solid rgba(0,47,167,0.12); color: var(--text-muted); font-size: 0.78rem; font-weight: 900; }
.case-scroll-hint { margin-top: 14px; color: rgba(0,47,167,0.56); font-size: 0.82rem; font-weight: 900; }
@media (max-width: 900px) {
  .cases-headline { display: block; }
  .cases-lead { margin-top: 18px; }
  .case-slider-shell { grid-auto-columns: 92%; padding-right: 6%; margin-right: -6%; }
  .case-slide { grid-template-columns: 1fr; min-height: auto; padding: 28px; }
  .case-metric-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }
  .case-metric-row span {
    min-width: 0;
    min-height: 62px;
    padding: 0 6px;
    font-size: 0.82rem;
    line-height: 1.2;
    white-space: nowrap;
  }
}

.case-tab-buttons { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.case-tab-buttons button { border: 1px solid rgba(0,47,167,0.18); background: rgba(255,255,255,0.72); color: var(--primary); border-radius: 999px; padding: 11px 16px; font-weight: 900; cursor: pointer; transition: all 0.2s ease; }
.case-tab-buttons button.active, .case-tab-buttons button:hover { background: var(--primary); color: #fff; transform: translateY(-1px); }
.case-tab-stage { position: relative; min-height: 368px; }
.case-tab-stage .case-slide { display: none; }
.case-tab-stage .case-slide.active { display: grid; animation: caseFade 0.28s ease both; }
@keyframes caseFade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 900px) { .case-tab-stage { min-height: 0; } .case-tab-stage .case-slide.active { display: grid; } }

.home-faq-section {
  background: #fff;
}

.home-faq-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.home-faq-grid article {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(248,250,255,0.84);
  box-shadow: 0 16px 34px rgba(0,47,167,0.06);
}

.home-faq-grid h3 {
  margin-bottom: 12px;
  color: var(--primary);
  font-size: 1.05rem;
  line-height: 1.38;
}

.home-faq-grid p {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.8;
}

@media (max-width: 900px) {
  .home-faq-grid {
    grid-template-columns: 1fr;
  }
}


.scope-route .scenario-visual {
  background:
    radial-gradient(circle at 50% 50%, rgba(0,47,167,0.12), transparent 22%),
    radial-gradient(circle at 22% 20%, rgba(232,255,0,0.18), transparent 18%),
    linear-gradient(135deg, #FFFFFF, #E9EEFF);
}
.local-route::before,
.global-route::before { display: none; }
.route-card {
  position: absolute;
  min-width: 124px;
  height: 72px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(0,47,167,0.16);
  background: rgba(255,255,255,0.92);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  box-shadow: 0 14px 24px rgba(0,47,167,0.08);
}
.route-query { left: 38px; top: 78px; }
.route-model {
  left: 50%;
  top: 38px;
  transform: translateX(-50%);
  background: linear-gradient(145deg, #002FA7, #1A46D7);
  color: #fff;
}
.route-brand { right: 38px; top: 78px; }
.route-arrow {
  position: absolute;
  width: 2px;
  background: linear-gradient(180deg, rgba(0,47,167,0.16), rgba(0,47,167,0.8));
  transform: none;
}
.arrow-one {
  left: calc(50% - 62px);
  top: 102px;
  height: 40px;
}
.arrow-two {
  left: calc(50% + 60px);
  top: 102px;
  height: 40px;
}
.local-route::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 132px;
  width: 258px;
  height: 2px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, rgba(0,47,167,0.08), rgba(0,47,167,0.8), rgba(0,47,167,0.08));
}
.world-band {
  position: absolute;
  width: 130px;
  height: 72px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(0,47,167,0.16);
  background: rgba(255,255,255,0.92);
  color: var(--primary);
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: 0 14px 24px rgba(0,47,167,0.08);
}
.band-one { left: 42px; top: 38px; }
.band-two { left: calc(50% - 65px); top: 84px; }
.band-three { right: 42px; top: 130px; }
.world-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 8px rgba(0,47,167,0.1);
}
.world-a { left: 166px; top: 86px; }
.world-b { left: calc(50% - 5px); top: 126px; }
.world-c { right: 164px; top: 174px; }