:root {
  --ink: #333333;
  --text: #555555;
  --muted: #8a9099;
  --bg: #ffffff;
  --soft: #f7f8fa;
  --line: #e6e8ed;
  --red: #e23b48;
  --cyan: #1ab8c8;
  --green: #6fbf45;
  --shadow: 0 10px 28px rgba(40, 48, 60, 0.06);
  --radius: 18px;
  --max: 1120px;
  --header: 76px;
  --sans: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font-family: inherit; }
::selection { background: rgba(26, 184, 200, 0.18); }

.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.skip {
  position: absolute; left: 16px; top: -40px; background: #fff; padding: 8px 12px;
  border-radius: 8px; z-index: 80;
}
.skip:focus { top: 12px; }

.site-header {
  position: sticky; top: 0; z-index: 40;
  height: var(--header);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(230, 232, 237, 0.9);
  isolation: isolate;
}
main { position: relative; z-index: 0; }
.bar {
  height: var(--header);
  display: flex; align-items: center; gap: 28px;
}
.brand { display: flex; align-items: center; margin-right: auto; }
.brand img { height: 46px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a {
  color: var(--text);
  font-size: 15px;
  padding: 8px 12px;
  border-radius: 999px;
}
.site-nav a:hover { color: var(--ink); background: var(--soft); }
.site-nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.nav-toggle {
  display: none; width: 42px; height: 42px; border: 1px solid var(--line);
  border-radius: 12px; background: #fff; padding: 0; cursor: pointer;
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.nav-toggle span {
  display: block; width: 16px; height: 1.5px; background: var(--ink);
}

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 44px; padding: 0 18px; border-radius: 999px;
  border: 1px solid transparent; font-size: 14.5px; letter-spacing: 0.02em;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #222; }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: #cfd3da; }
.btn:hover { transform: translateY(-1px); }
.btn-sm { height: 38px; padding: 0 14px; }

.hero { padding: 72px 0 36px; }
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center;
}
.eyebrow {
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 18px; color: var(--muted); font-size: 13px; letter-spacing: 0.12em;
}
.tri-dots { display: inline-flex; gap: 5px; }
.tri-dots i { width: 7px; height: 7px; border-radius: 50%; display: block; }
.tri-dots i:nth-child(1) { background: var(--red); }
.tri-dots i:nth-child(2) { background: var(--cyan); }
.tri-dots i:nth-child(3) { background: var(--green); }
h1, h2, h3, h4 { color: var(--ink); font-weight: 600; letter-spacing: 0.01em; }
.hero h1 {
  margin: 0; font-size: clamp(34px, 4.4vw, 52px); line-height: 1.25; font-weight: 600;
}
.hero .sub {
  margin: 18px 0 0; font-size: clamp(20px, 2vw, 26px); color: var(--ink); font-weight: 600;
}
.slogan { margin: 14px 0 0; font-size: 17px; color: var(--text); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.hero-visual {
  background: var(--soft);
  border-radius: 28px;
  padding: 0;
  border: 1px solid #eef0f3;
  overflow: hidden;
}
.hero-visual img {
  width: 100%; height: auto; aspect-ratio: 16 / 9;
  object-fit: cover; object-position: center; display: block;
}

.section { padding: 72px 0; }
.section-head { max-width: 720px; margin-bottom: 32px; }
.section-head h2 { margin: 0 0 10px; font-size: clamp(28px, 3vw, 36px); line-height: 1.3; }
.section-head p { margin: 0; }
.soft { background: var(--soft); }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stat, .card, .mode, .promise, .info-card, .qr-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.stat { padding: 26px 24px 22px; }
.stat strong {
  display: block; font-size: 40px; line-height: 1.1; letter-spacing: -0.03em; font-weight: 700;
}
.stat .red { color: var(--red); }
.stat .cyan { color: var(--cyan); }
.stat .green { color: var(--green); }
.stat b { display: block; margin-top: 10px; color: var(--ink); font-size: 16px; }
.stat p { margin: 6px 0 0; font-size: 14px; }

.cred-list { margin-top: 18px; display: grid; gap: 12px; }
.cred {
  display: grid; grid-template-columns: 42px 1fr; gap: 14px; align-items: start;
  padding: 16px 4px;
}
.icon-bubble {
  width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center; background: #fff; border: 1px solid var(--line);
}
.icon-bubble svg { width: 20px; height: 20px; }
.cred h3 { margin: 0 0 4px; font-size: 16px; }
.cred p { margin: 0; font-size: 14.5px; }

.split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: center; }
.quote-xl {
  margin: 0; font-size: clamp(22px, 2.4vw, 30px); line-height: 1.55;
  color: var(--ink); font-weight: 500;
}
.pillars { display: grid; gap: 18px; }
.pillar { display: grid; grid-template-columns: 86px 1fr; gap: 16px; align-items: center; }
.badge {
  width: 86px; height: 86px; border-radius: 50%;
  display: grid; place-items: center; background: #fff;
}
.badge.red { border: 1px solid rgba(226, 59, 72, 0.45); color: var(--red); }
.badge.cyan { border: 1px solid rgba(26, 184, 200, 0.5); color: var(--cyan); }
.badge.green { border: 1px solid rgba(111, 191, 69, 0.55); color: var(--green); }
.badge svg { width: 28px; height: 28px; }
.pillar h3 { margin: 0 0 4px; font-size: 18px; }
.pillar p { margin: 0; font-size: 14.5px; }
.tag {
  display: inline-block; margin-left: 8px; padding: 1px 8px; border-radius: 999px;
  font-size: 12px; font-weight: 600; vertical-align: 1px;
}
.tag.red { color: var(--red); background: rgba(226, 59, 72, 0.08); }
.tag.cyan { color: #0e8f9c; background: rgba(26, 184, 200, 0.12); }
.tag.green { color: #4e8d2c; background: rgba(111, 191, 69, 0.14); }

.lead-block { display: grid; grid-template-columns: 4px 1fr; gap: 18px; margin: 64px 0 28px; }
.lead-block .rail {
  border-radius: 99px;
  background: linear-gradient(180deg, var(--red), var(--cyan), var(--green));
}
.lead-block h2 { margin: 0 0 8px; font-size: clamp(22px, 2.2vw, 28px); line-height: 1.35; font-weight: 600; }
.lead-block p { margin: 0; }

.cards-3, .modes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cards-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card { padding: 26px 22px 22px; position: relative; overflow: hidden; }
.card .stripe { position: absolute; left: 0; right: 0; top: 0; height: 3px; }
.card h3 { margin: 8px 0 8px; font-size: 18px; }
.card p { margin: 0; font-size: 14.5px; }
.card-title { display: flex; align-items: center; gap: 8px; margin: 2px 0 12px; }
.card-title h3 { margin: 0; }
.card-title .glyph { width: 22px; height: 22px; flex: none; }

.matrix { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.biz-link {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px;
  min-height: 156px; padding: 26px 16px 20px;
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.biz-link:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.biz-icon { width: 40px; height: 40px; }
.biz-link strong { color: var(--ink); font-size: 16px; font-weight: 600; }
.biz-link span { color: var(--muted); font-size: 13px; }
.matrix-note { margin: 22px 0 0; color: var(--muted); font-size: 15px; }

.page-hero { padding: 56px 0 12px; }
.page-hero h1 { margin: 0; font-size: clamp(30px, 4vw, 44px); line-height: 1.28; }
.page-hero .dek { margin: 12px 0 0; max-width: 680px; font-size: 17px; }
.contact-hero h1 {
  font-size: clamp(22px, 2.2vw, 28px);
  font-weight: 600;
  line-height: 1.45;
}
.contact-hero .dek { margin-top: 10px; }

.subnav {
  position: sticky; top: var(--header); z-index: 30;
  background: rgba(255,255,255,.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.subnav .container {
  display: flex; gap: 6px; overflow-x: auto; padding: 10px 0;
  scrollbar-width: none;
}
.subnav a {
  flex: 0 0 auto; font-size: 13.5px; color: var(--text);
  padding: 6px 12px; border-radius: 999px; border: 1px solid transparent;
}
.subnav a:hover { border-color: var(--line); color: var(--ink); }

.biz { padding: 54px 0; border-bottom: 1px solid var(--line); }
.biz-kicker { margin: 0 0 8px; font-size: 13px; letter-spacing: 0.14em; color: var(--muted); }
.biz h2 { margin: 0; font-size: 30px; }
.biz .dek { margin: 8px 0 0; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.biz-grid { display: grid; grid-template-columns: minmax(0, 1.17fr) minmax(280px, 480px); gap: 28px 40px; align-items: start; margin-top: 22px; }
.biz-figure { margin: 0; }
.biz-maintain {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
  gap: 28px 36px; align-items: start; margin-top: 22px;
}
.maintain-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.m-card { background: #f5f6f8; border-radius: 14px; padding: 22px 20px 18px; }
.m-card h3 { margin: 0 0 10px; display: flex; align-items: center; gap: 10px; font-size: 18px; }
.m-icon { width: 26px; height: 26px; flex: none; }
.m-card p { margin: 0; font-size: 14.5px; line-height: 1.7; }
.scope {
  margin: 22px 0 0; display: grid; grid-template-columns: 12px 1fr; gap: 12px;
  color: var(--text); font-size: 14.5px; line-height: 1.7;
}
.scope strong { display: block; color: var(--ink); margin-bottom: 2px; }
.plist { list-style: none; margin: 0; padding: 0; display: grid; gap: 20px; }
.plist li { display: grid; grid-template-columns: 12px 1fr; gap: 12px; }
.dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 9px; }
.dot.red { background: var(--red); }
.dot.cyan { background: var(--cyan); }
.dot.green { background: var(--green); }
.plist strong { color: var(--ink); }
.plist p { margin: 2px 0 0; font-size: 14.5px; }
.visual {
  background: linear-gradient(180deg, #fff, var(--soft));
  border: 1px solid var(--line); border-radius: 22px; padding: 8px 12px;
  min-height: 280px; display: grid; place-items: center;
}
.visual svg { width: min(100%, 440px); height: auto; display: block; }
.visual-photo { padding: 0; background: #eef1f4; overflow: hidden; min-height: 0; border-radius: 16px; }
.visual-photo img {
  width: 100%; height: auto; aspect-ratio: 16 / 9; min-height: 0;
  object-fit: cover; object-position: center; display: block;
}
.brands { margin: 10px 0 0; color: #82878c; font-size: 13.5px; letter-spacing: 0.02em; }
.brands b { color: #5a5f64; font-weight: 600; }
.advantage {
  margin-top: 18px; display: grid; grid-template-columns: 4px 1fr; gap: 14px;
  background: #f5f6f8; border-radius: 12px; padding: 14px 16px;
  color: var(--text); font-size: 14.5px;
}
.advantage i { border-radius: 99px; background: #6eb25b; }
.advantage.red i { background: #d32128; }
.advantage.cyan i { background: #268f9e; }
.advantage b { color: var(--ink); font-weight: 600; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.chip {
  font-size: 13px; color: var(--ink); background: #fff;
  border: 1px solid var(--line); border-radius: 999px; padding: 4px 10px;
}
.steps-label { margin: 26px 0 0; color: #5a5f64; font-weight: 500; font-size: 15px; }
.steps { display: flex; align-items: center; gap: 10px; margin-top: 12px; }
.step {
  flex: 1; border-radius: 8px; padding: 12px 8px;
  font-size: 15px; font-weight: 600; text-align: center;
}
.step.s1, .step.s5 { background: #fde8ea; color: #d32128; }
.step.s2 { background: #e5f6f8; color: #148b9a; }
.step.s3 { background: #e7f6df; color: #5a964b; }
.step.s4 { background: #e7f3f8; color: #3d8eae; }
.step-arrow { flex: none; color: #c5c9ce; font-size: 16px; }

.flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 48px; }
.promise { padding: 22px 18px 18px; text-align: center; }
.node {
  width: 54px; height: 54px; margin: 0 auto 14px; border-radius: 50%;
  display: grid; place-items: center; background: #fff; border: 1px solid transparent;
  position: relative; z-index: 1;
}
.node.red { background: #fdecee; }
.node.cyan { background: #e7f7f9; }
.node.green { background: #eef8e6; }
.node svg { width: 22px; height: 22px; }
.promise h3 { margin: 0; font-size: 20px; }
.promise p { margin: 8px 4px 0; font-size: 13.5px; color: var(--muted); line-height: 1.65; }
.close { margin-top: 56px; text-align: center; }
.closing {
  margin: 0; font-size: clamp(26px, 3vw, 36px);
  color: var(--ink); font-weight: 700; letter-spacing: 0.02em;
}
.closing:after {
  content: ""; display: block; width: 72px; height: 3px; margin: 18px auto 0; border-radius: 99px;
  background: linear-gradient(90deg, var(--red), var(--cyan), var(--green));
}
.close h2 { margin: 28px 0 8px; font-size: 22px; font-weight: 600; }
.close > p { margin: 0; }
.close .btn { margin-top: 22px; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
.phone-panel, .qr-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.phone-panel { padding: 40px 36px; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; }
.contact-facts { margin: 0; width: 100%; display: grid; gap: 20px; }
.contact-facts div { display: grid; gap: 4px; }
.contact-facts dt {
  display: flex; align-items: center; gap: 8px;
  color: var(--muted); font-size: 13px; letter-spacing: 0.08em;
}
.fact-icon { width: 18px; height: 18px; flex: none; }
.contact-facts dd { margin: 0 0 0 26px; color: var(--ink); font-size: 18px; font-weight: 600; line-height: 1.45; }
.qr-card { padding: 32px 22px; text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.qr-card img { width: 220px; height: 220px; margin: 0 auto 14px; border-radius: 12px; }
.qr-card strong { color: var(--ink); }
.qr-card p { margin: 6px 0 0; color: var(--muted); font-size: 13.5px; }

.cta {
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  padding: 36px 0 8px;
}
.cta h2 { margin: 0 0 6px; font-size: 28px; }
.cta p { margin: 0; }
.mark { color: var(--cyan); }
.nowrap { white-space: nowrap; }

.site-footer { margin-top: 24px; padding: 36px 0 28px; }
.foot {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 40px;
}
.site-footer .foot-logo { height: 48px; width: auto; margin-bottom: 14px; }
.site-footer p { margin: 0; font-size: 14px; }
.site-footer h3 { margin: 6px 0 10px; font-size: 14px; letter-spacing: 0.08em; color: var(--muted); font-weight: 600; }
.site-footer a:hover { color: var(--ink); }
.foot-links { display: grid; gap: 6px; font-size: 14.5px; }
.foot-contact { display: flex; align-items: center; gap: 14px; font-size: 14.5px; }
.foot-contact img { width: 104px; height: 104px; margin: 0; border-radius: 8px; flex: none; object-fit: cover; }
.foot-contact div { display: grid; gap: 8px; min-width: 0; }
.legal {
  margin-top: 26px; padding-top: 16px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  color: var(--muted); font-size: 12.5px;
}
.hairline {
  height: 3px;
  background: linear-gradient(90deg, var(--red), var(--cyan), var(--green));
}

@media (max-width: 980px) {
  .hero-grid, .split, .biz-grid, .biz-maintain, .contact-grid { grid-template-columns: 1fr; }
  .foot { flex-direction: column; gap: 28px; }
  .matrix { grid-template-columns: repeat(3, 1fr); }
  .cards-3, .cards-2, .modes, .flow, .stats { grid-template-columns: 1fr; }
  .flow { gap: 16px; }
  .hero { padding-top: 40px; }
  .cta { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 760px) {
  .container { width: min(var(--max), calc(100% - 32px)); }
  .steps { flex-wrap: wrap; }
  .step { flex: 1 1 calc(50% - 28px); }
  .step-arrow { display: none; }
  .maintain-cards { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-flex; }
  .desktop-cta { display: none; }
  .site-nav {
    display: none; position: absolute; left: 16px; right: 16px; top: calc(var(--header) - 6px);
    z-index: 2;
    flex-direction: column; align-items: stretch; padding: 10px;
    background: #fff; border: 1px solid var(--line); border-radius: 16px;
    box-shadow: 0 16px 40px rgba(40, 48, 60, 0.12);
  }
  .site-header.open .site-nav { display: flex; }
  .site-nav a { padding: 12px 12px; }
  .phone-panel { padding: 28px 22px; }
  .matrix { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .biz-link { transition: none; }
}