:root {
  --bg: #07090b;
  --bg-soft: #0b0f12;
  --surface: #10151a;
  --surface-strong: #151c21;
  --text: #f4f7f8;
  --muted: #a5b0b6;
  --subtle: #748087;
  --line: rgba(255, 255, 255, 0.11);
  --line-strong: rgba(255, 255, 255, 0.2);
  --accent: #69e6d1;
  --accent-ink: #041411;
  --blue: #6e9cff;
  --warn: #ffcb6b;
  --danger: #ff8b8b;
  --header: 72px;
  --container: 1240px;
  --radius: 6px;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.3);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header) + 16px);
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--text);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

body.nav-open,
body.modal-open { overflow: hidden; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; letter-spacing: 0; }
button, summary { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 10px 14px;
  color: var(--accent-ink);
  background: var(--accent);
  border-radius: 4px;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header);
  background: rgba(7, 9, 11, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled { box-shadow: 0 10px 34px rgba(0, 0, 0, 0.24); }

.nav {
  width: min(calc(100% - 48px), var(--container));
  height: 100%;
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  min-width: 210px;
}

.brand-logo,
.brand-logo img {
  width: 38px;
  height: 38px;
  border-radius: 6px;
}

.brand-text { display: grid; line-height: 1.15; }
.brand-text strong { font-size: 15px; font-weight: 720; }
.brand-text small { margin-top: 4px; color: var(--muted); font-size: 11px; }

.nav-menu {
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}

.nav-menu > a,
.nav-dropdown > summary {
  min-height: 42px;
  padding: 9px 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #dce3e6;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 620;
  white-space: nowrap;
  cursor: pointer;
  list-style: none;
}

.nav-dropdown > summary::-webkit-details-marker { display: none; }
.nav-dropdown > summary::after { content: ""; width: 6px; height: 6px; margin-left: 7px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-2px); }
.nav-menu > a:hover,
.nav-menu > a:focus-visible,
.nav-dropdown > summary:hover,
.nav-dropdown > summary:focus-visible,
.nav-menu > .active,
.nav-dropdown.is-active > summary { background: rgba(255,255,255,.08); color: #fff; }

.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  width: 260px;
  padding: 8px;
  background: #0f1418;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform: translateX(-50%);
}
.nav-dropdown-menu::before { content: ""; position: absolute; inset: -12px 0 auto; height: 12px; }
.nav-dropdown-menu a { display: grid; gap: 1px; padding: 11px 12px; border-radius: 4px; }
.nav-dropdown-menu a:hover,
.nav-dropdown-menu a:focus-visible { background: rgba(255,255,255,.07); }
.nav-dropdown-menu strong { font-size: 14px; }
.nav-dropdown-menu span { color: var(--muted); font-size: 12px; font-weight: 400; }

.nav-cta,
.btn {
  min-height: 44px;
  padding: 10px 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 700;
  line-height: 1.25;
  text-align: center;
  cursor: pointer;
}

.nav-cta { flex: 0 0 auto; color: var(--accent-ink); background: var(--accent); font-size: 14px; }
.btn-primary { color: var(--accent-ink); background: var(--accent); }
.btn-secondary { color: var(--text); background: transparent; border-color: var(--line-strong); }
.btn-quiet { min-height: 36px; padding: 6px 0; color: var(--accent); border: 0; background: transparent; }
.nav-cta:hover, .btn-primary:hover { background: #91f4e4; }
.btn-secondary:hover { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.35); }
.btn:focus-visible, .nav-cta:focus-visible, button:focus-visible, summary:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.nav-toggle { display: none; width: 44px; height: 44px; padding: 0; border: 1px solid var(--line); border-radius: 4px; background: transparent; }
.nav-toggle span { display: block; width: 20px; height: 1.5px; margin: 5px auto; background: #fff; transition: transform .2s ease; }
.nav-open .nav-toggle span:first-child { transform: translateY(3.25px) rotate(45deg); }
.nav-open .nav-toggle span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.3;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.18; letter-spacing: 0; }
h1 { margin-bottom: 22px; font-size: 52px; font-weight: 760; }
h2 { margin-bottom: 16px; font-size: 36px; font-weight: 740; }
h3 { margin-bottom: 10px; font-size: 21px; font-weight: 700; }
p { margin-bottom: 16px; }
.muted { color: var(--muted); }

.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: clip;
  background: #080b0d;
  border-bottom: 1px solid var(--line);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 28% 45%, rgba(34, 104, 111, .22), transparent 38%), linear-gradient(100deg, rgba(23, 35, 45, .58), transparent 58%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  min-height: 560px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, .9fr);
  align-items: center;
  gap: 64px;
  padding-block: 38px;
}

.hero-copy { max-width: 720px; }
.hero-brandline { margin-bottom: 20px; color: #d3dade; font-size: 15px; font-weight: 650; }
.hero-lead, .page-lead { max-width: 760px; color: #c2ccd1; font-size: 18px; line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.text-link { display: inline-flex; align-items: center; min-height: 44px; color: var(--accent); font-weight: 700; }
.text-link::after { content: "→"; margin-left: 8px; }

.hero-device {
  position: relative;
  height: min(60vh, 460px);
  min-height: 390px;
  margin: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #060809;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-device picture { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero-device img { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.hero-device figcaption { position: absolute; left: 14px; bottom: 12px; padding: 6px 9px; color: #d7dfe2; background: rgba(4,6,7,.78); border: 1px solid var(--line); border-radius: 3px; font-size: 11px; }

.section { padding: 88px 0; border-bottom: 1px solid var(--line); }
.section-compact { padding: 64px 0; }
.section-contrast { background: #0a0e11; }
.section-light { color: var(--text) !important; background-color: #0a0e11 !important; }
.section-light .muted, .section-light .section-heading p, .section-light .lead { color: var(--muted); }
.section-light .section-heading p:not(.eyebrow) { color: var(--muted); }
.section-light .case-feature .status-badge { color: #dce4e6; border-color: var(--line-strong); }
.section-light .case-feature .status-badge.live::before { background: var(--accent); }
.section-light .case-feature .text-link { color: var(--accent); }
.section-heading { max-width: none; margin-bottom: 38px; }
.section-heading h2,
.section-heading > p:not(.eyebrow) { max-width: 780px; }
.section-heading p:not(.eyebrow) { color: var(--muted); font-size: 17px; }
.section-heading.inline { max-width: none; display: flex; align-items: end; justify-content: space-between; gap: 32px; }
.section-heading.inline > div { max-width: 760px; }

.scroll-hint { display: none; margin: 0 0 12px; color: var(--subtle); font-size: 13px; }

.cooperation-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); border-top: 1px solid var(--line-strong); }
.cooperation-link { min-height: 230px; padding: 30px 24px; display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.cooperation-link:last-child { border-right: 0; }
.cooperation-link > span { color: var(--accent); font-size: 12px; font-weight: 800; }
.cooperation-link h3 { margin-top: 36px; }
.cooperation-link p { color: var(--muted); font-size: 14px; }
.cooperation-link b { margin-top: auto; color: var(--text); font-size: 14px; }
.cooperation-link:hover { background: rgba(255,255,255,.035); }

.relation-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 72px; align-items: center; }
.system-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: stretch; }
.flow-step { min-height: 190px; padding: 26px 20px; display: flex; flex-direction: column; border: 1px solid var(--line-strong); border-radius: var(--radius); }
.flow-step span { color: var(--accent); font-size: 12px; font-weight: 800; }
.flow-step p { margin: auto 0 0; color: var(--muted); font-size: 13px; }
.flow-arrow { width: 34px; display: grid; place-items: center; color: var(--subtle); }

.capability-list { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); column-gap: 54px; }
.capability-list.one-column { grid-template-columns: 1fr; }
.capability-item { padding: 26px 0; display: grid; grid-template-columns: 42px 1fr; gap: 18px; border-top: 1px solid var(--line); }
.capability-item > span { color: var(--accent); font-size: 13px; font-weight: 800; }
.capability-item p { margin: 0; color: var(--muted); }

.case-feature { display: grid; grid-template-columns: 1.35fr .65fr; min-height: 500px; background-color: #0d1316 !important; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.case-feature picture { min-height: 430px; }
.case-feature img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.case-copy { padding: 48px; display: flex; flex-direction: column; justify-content: center; color: var(--text); background-color: #0d1316; }
.case-copy p { color: var(--muted); }
.case-facts { margin: 20px 0 0; }
.case-facts div { padding: 12px 0; display: grid; grid-template-columns: 88px 1fr; gap: 14px; border-top: 1px solid var(--line); }
.case-facts dt { color: var(--subtle); font-size: 13px; }
.case-facts dd { margin: 0; font-weight: 650; }

.final-cta { padding: 84px 0; background: #0d1216; }
.cta-panel { padding: 52px 0; display: grid; grid-template-columns: 1fr auto; gap: 44px; align-items: center; border-top: 1px solid var(--accent); border-bottom: 1px solid var(--line-strong); }
.cta-panel h2 { max-width: 780px; }
.cta-panel p { max-width: 760px; margin-bottom: 0; color: var(--muted); }
.cta-actions { display: grid; gap: 10px; min-width: 220px; }

.page-hero { padding: 64px 0 70px; border-bottom: 1px solid var(--line); background: #090c0f; }
.page-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.page-hero h1 { max-width: 800px; font-size: 46px; }
.breadcrumb { margin-bottom: 28px; color: var(--subtle); font-size: 13px; }
.breadcrumb a {
  color: var(--muted);
  text-decoration: underline;
  text-decoration-color: rgba(155, 255, 226, .48);
  text-underline-offset: 3px;
}
.page-media { height: 470px; margin: 0; overflow: hidden; background: #07090a; border: 1px solid var(--line); border-radius: var(--radius); }
.page-media img { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.page-media.landscape img { object-fit: cover; }
.page-media.ui-media img { object-fit: contain; }

.status-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; }
.status-badge { padding: 6px 10px; display: inline-flex; align-items: center; border: 1px solid var(--line-strong); border-radius: 999px; color: #dce4e6; font-size: 12px; font-weight: 650; }
.status-badge.live::before, .status-badge.direction::before, .status-badge.testing::before { content: ""; width: 6px; height: 6px; margin-right: 7px; border-radius: 50%; background: var(--accent); }
.status-badge.direction::before { background: var(--blue); }
.status-badge.testing::before { background: var(--warn); }

.split { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 64px; align-items: center; }
.split.reverse > :first-child { order: 2; }
.split.reverse > :last-child { order: 1; }
.lead { color: var(--muted); font-size: 17px; }
.media-frame { min-height: 400px; margin: 0; display: grid; place-items: center; overflow: hidden; background: #0a0e11; border: 1px solid var(--line); border-radius: var(--radius); }
.media-frame img { width: 100%; height: 100%; max-height: 560px; object-fit: contain; }
.media-frame.landscape img { object-fit: cover; }

.four-grid, .three-grid, .two-grid { display: grid; align-items: stretch; gap: 18px; }
.four-grid { grid-template-columns: repeat(4,minmax(0,1fr)); }
.three-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
.two-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
.info-card, .path-card, .audience-card, .qr-entry, .form-panel, .fact-panel { padding: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.path-card, .audience-card { display: flex; flex-direction: column; }
.path-card .text-link, .audience-card .text-link { margin-top: auto; }
.info-card > span, .path-card > span { color: var(--accent); font-size: 12px; font-weight: 800; }
.info-card p, .path-card p, .audience-card p { margin-bottom: 0; color: var(--muted); }
.info-card ul, .path-card ul, .check-list { margin: 18px 0 0; padding: 0; list-style: none; }
.info-card li, .path-card li, .check-list li { position: relative; margin: 9px 0; padding-left: 18px; color: #c6cfd3; }
.info-card li::before, .path-card li::before, .check-list li::before { content: ""; position: absolute; top: .78em; left: 0; width: 6px; height: 1.5px; background: var(--accent); }

.current-future { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.current-future article { padding: 34px; color: var(--text); background-color: #10151a !important; border: 1px solid var(--line); border-radius: var(--radius); }
.current-future .current { color: var(--text); }
.current-future .future { color: var(--text); }
.current-future ul { padding-left: 20px; }
.current-future li { margin: 9px 0; }
.current-future p, .current-future li { color: var(--muted); }

.process-list { margin: 0 auto; padding: 0; display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); list-style: none; counter-reset: step; }
.process-section .section-heading { max-width: 780px; margin-inline: auto; text-align: center; }
.process-section .scroll-hint { text-align: center; }
.process-list li { min-height: 180px; padding: 24px 20px; display: flex; flex-direction: column; align-items: center; border-top: 1px solid var(--line-strong); border-right: 1px solid var(--line); text-align: center; }
.process-list li:last-child { border-right: 0; }
.process-list li::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 30px; color: var(--accent); font-size: 12px; font-weight: 800; }
.process-list strong, .process-list span { display: block; }
.process-list span { max-width: 190px; margin-top: 8px; color: var(--muted); font-size: 14px; }

.spec-wrap { border-top: 1px solid var(--line-strong); }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table th, .spec-table td { padding: 18px 20px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.spec-table th { width: 28%; color: #dfe6e8; font-size: 14px; }
.spec-table td { color: var(--muted); }

.gallery { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.gallery button { height: 420px; padding: 0; overflow: hidden; background: #090c0e; border: 1px solid var(--line); border-radius: var(--radius); cursor: zoom-in; }
.gallery img { width: 100%; height: 100%; object-fit: contain; }

.faq-list { max-width: 900px; border-top: 1px solid var(--line-strong); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-button { width: 100%; min-height: 64px; padding: 16px 48px 16px 0; position: relative; color: var(--text); background: transparent; border: 0; text-align: left; font-weight: 700; cursor: pointer; }
.faq-button::after { content: "+"; position: absolute; right: 2px; top: 50%; color: var(--accent); font-size: 22px; transform: translateY(-50%); }
.faq-item.is-open .faq-button::after { content: "−"; }
.faq-panel { display: none; padding: 0 42px 20px 0; color: var(--muted); }
.faq-panel p { margin: 0; }
.faq-item.is-open .faq-panel { display: block; }

.mall-paths { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.mall-path { padding: 36px; color: var(--text); background-color: #10151a !important; border: 1px solid var(--line); border-radius: var(--radius); }
.mall-path.consumer, .mall-path.partner { color: var(--text); }
.mall-path p, .mall-path li { color: var(--muted); }
.mall-path .qr-inline { width: 210px; margin: 26px 0; padding: 10px; background: #0a0e11; border: 1px solid var(--line); border-radius: 4px; }
.mall-path .qr-inline img { width: 190px; height: 190px; object-fit: contain; }

.case-detail { display: grid; grid-template-columns: 1.15fr .85fr; background: #0b0f12; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.case-detail picture { min-height: 560px; }
.case-detail img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.case-detail-copy { padding: 46px; align-self: center; }
.eyebrow-spaced { margin-top: 22px; }

.contact-priority { display: grid; grid-template-columns: .8fr 1.2fr; gap: 24px; }
.contact-direct { padding: 36px; background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: var(--radius); }
.contact-direct a { font-weight: 750; }
.contact-direct dl { margin: 26px 0 0; }
.contact-direct dl div { padding: 12px 0; display: grid; grid-template-columns: 92px 1fr; border-top: 1px solid var(--line); }
.contact-direct dt { color: var(--subtle); font-size: 13px; }
.contact-direct dd { margin: 0; }
.copy-btn { min-height: 44px; margin-left: 8px; padding: 6px 11px; color: var(--accent); background: transparent; border: 1px solid rgba(105,230,209,.5); border-radius: 3px; cursor: pointer; }

.form-panel h2 { font-size: 28px; }
.form-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1/-1; }
.field label { color: #dbe2e4; font-size: 13px; font-weight: 650; }
.field input, .field select, .field textarea { width: 100%; min-height: 46px; padding: 11px 12px; color: var(--text); background: #090c0f; border: 1px solid var(--line-strong); border-radius: 4px; }
.field textarea { min-height: 110px; resize: vertical; }
.form-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.form-note { margin: 14px 0 0; color: var(--subtle); font-size: 13px; }
.form-summary { margin-top: 18px; padding: 16px; white-space: pre-wrap; color: #dce4e6; background: #090c0f; border-left: 2px solid var(--accent); }

.channel-strip { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 12px; }
.qr-entry { min-height: 150px; display: flex; flex-direction: column; }
.qr-entry button { width: 100%; padding: 0; color: inherit; background: transparent; border: 0; text-align: left; cursor: pointer; }
.qr-entry-head { display: flex; align-items: center; gap: 10px; }
.channel-mark { width: 34px; height: 34px; display: grid; place-items: center; color: var(--accent-ink); background: var(--accent); border-radius: 4px; font-size: 12px; font-weight: 800; }
.qr-entry p { margin: 16px 0 0; color: var(--muted); font-size: 13px; }
.qr-entry small { margin-top: auto; padding-top: 14px; color: var(--accent); }

.site-footer { padding: 42px 0 calc(34px + env(safe-area-inset-bottom)); background: #050708; border-top: 1px solid var(--line); }
.footer-top { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: start; }
.footer-brand strong { font-size: 18px; }
.footer-brand p { max-width: 560px; margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px 20px; color: #c8d0d3; font-size: 13px; }
.footer-bottom { margin-top: 30px; padding-top: 22px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-top: 1px solid var(--line); color: var(--subtle); font-size: 12px; }
.footer-bottom-flush { margin-top: 0; }
.footer-records { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 16px; }
.police-record { display: inline-flex; align-items: center; gap: 6px; }
.police-record img { width: 18px; height: 18px; }

.mobile-contact-bar { display: none; }

.lightbox {
  width: min(92vw, 720px);
  max-height: 90vh;
  padding: 0;
  color: var(--text);
  background: #0d1216;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.lightbox::backdrop { background: rgba(0,0,0,.82); backdrop-filter: blur(5px); }
.lightbox-inner { padding: 24px; }
.lightbox-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 16px; }
.lightbox-title { margin: 0; font-size: 20px; }
.lightbox-close { width: 44px; height: 44px; color: #fff; background: transparent; border: 1px solid var(--line); border-radius: 4px; cursor: pointer; }
.lightbox-image { width: 100%; max-height: 68vh; object-fit: contain; background: #050708; }
.lightbox-note { margin: 14px 0 0; color: var(--muted); font-size: 13px; }
.lightbox-account { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; }

.sr-live { position: fixed; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

@media (max-width: 1180px) {
  .nav { gap: 14px; }
  .brand { min-width: 178px; }
  .brand-text small { display: none; }
  .nav-menu > a, .nav-dropdown > summary { padding-inline: 9px; font-size: 13px; }
  .nav-cta { padding-inline: 14px; }
  .hero-grid { gap: 40px; }
  h1 { font-size: 46px; }
  .four-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 960px) {
  :root { --header: 64px; }
  .container { width: min(calc(100% - 36px), var(--container)); }
  .site-header { backdrop-filter: none; }
  .nav { width: min(calc(100% - 36px), var(--container)); }
  .brand { min-width: 0; margin-right: auto; }
  .brand-text small { display: block; }
  .nav-toggle { display: block; order: 3; }
  .nav-cta { display: none; }
  .nav-menu {
    position: fixed;
    inset: var(--header) 0 auto;
    max-height: calc(100dvh - var(--header));
    padding: 18px;
    display: grid;
    justify-content: stretch;
    gap: 4px;
    overflow-y: auto;
    background: #090c0f;
    border-bottom: 1px solid var(--line-strong);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity .18s ease, transform .18s ease;
  }
  .nav-open .nav-menu { visibility: visible; opacity: 1; transform: translateY(0); }
  .nav-menu > a, .nav-dropdown > summary { width: 100%; min-height: 48px; padding-inline: 12px; justify-content: flex-start; font-size: 15px; }
  .nav-dropdown { width: 100%; }
  .nav-dropdown > summary::after { margin-left: auto; }
  .nav-dropdown-menu { position: static; width: 100%; margin: 2px 0 8px; padding: 4px 0 4px 12px; background: transparent; border: 0; box-shadow: none; transform: none; }
  .nav-dropdown:not([open]) .nav-dropdown-menu { display: none; }
  .nav-dropdown-menu a { padding: 10px 12px; border-left: 1px solid var(--line); border-radius: 0; }

  .hero { min-height: auto; }
  .hero-grid { min-height: 0; grid-template-columns: minmax(0,1fr) minmax(280px,.72fr); gap: 28px; padding-block: 34px; }
  h1 { font-size: 39px; }
  h2 { font-size: 31px; }
  .hero-lead, .page-lead { font-size: 16px; }
  .hero-device { height: 430px; min-height: 0; }
  .section { padding: 70px 0; }
  .section-compact { padding: 54px 0; }
  .cooperation-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .cooperation-link:nth-child(2) { border-right: 0; }
  .cooperation-link:nth-child(n+3) { border-top: 1px solid var(--line); }
  .scroll-hint { display: block; }
  .relation-layout { grid-template-columns: 1fr; gap: 36px; }
  .case-feature { grid-template-columns: 1.15fr .85fr; }
  .case-copy { padding: 34px; }
  .page-hero-grid { grid-template-columns: 1fr .75fr; gap: 32px; }
  .page-media { height: 400px; }
  .three-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .process-list { grid-template-columns: repeat(5,260px); overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .process-list li { min-width: 260px; scroll-snap-align: start; }
  .gallery { overflow-x: auto; grid-template-columns: repeat(3, 300px); scroll-snap-type: x mandatory; scrollbar-width: none; }
  .gallery button { height: 390px; scroll-snap-align: start; }
  .channel-strip { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 720px) {
  body { padding-bottom: calc(60px + env(safe-area-inset-bottom)); font-size: 15px; }
  body.is-wechat-webview { padding-bottom: 0; }
  .container { width: min(calc(100% - 28px), var(--container)); }
  .brand-logo, .brand-logo img { width: 34px; height: 34px; }
  .brand-text strong { font-size: 14px; }
  .brand-text small { font-size: 10px; }
  h1 { font-size: 32px; }
  h2 { font-size: 27px; }
  h3 { font-size: 19px; }

  .hero::before { background: radial-gradient(circle at 50% 15%, rgba(34,104,111,.2), transparent 45%); }
  .hero-grid { grid-template-columns: 1fr; gap: 20px; padding-block: 28px 32px; }
  .hero-copy { max-width: none; }
  .hero-brandline { margin-bottom: 14px; font-size: 13px; }
  .hero h1 { margin-bottom: 14px; }
  .hero-lead { margin-bottom: 12px; font-size: 15px; line-height: 1.65; }
  .hero-actions { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; margin-top: 20px; }
  .hero-actions .text-link { grid-column: 1/-1; justify-content: center; }
  .hero-device { height: 300px; width: 100%; min-height: 0; }
  .hero-device figcaption { display: none; }

  .section, .final-cta { padding: 50px 0; }
  .section-compact { padding: 40px 0; }
  .section-heading { margin-bottom: 24px; }
  .section-heading p:not(.eyebrow), .lead { font-size: 15px; }
  .section-heading.inline { display: block; }
  .cooperation-grid { grid-template-columns: 1fr; }
  .cooperation-link { min-height: 0; padding: 24px 20px; border-right: 0; border-top: 1px solid var(--line); }
  .cooperation-link:first-child { border-top-color: var(--line-strong); }
  .cooperation-link h3 { margin-top: 26px; }
  .section-compact > .scroll-hint { display: none; }

  .system-flow { grid-template-columns: 1fr; gap: 0; }
  .flow-step { min-height: 130px; }
  .flow-arrow { width: 100%; height: 30px; transform: rotate(90deg); }
  .capability-list { grid-template-columns: 1fr; }
  .case-feature, .case-detail { grid-template-columns: 1fr; }
  .case-feature picture, .case-detail picture { min-height: 280px; height: 330px; }
  .case-copy, .case-detail-copy { padding: 28px 22px; }
  .cta-panel { padding: 32px 0; grid-template-columns: 1fr; gap: 26px; }
  .cta-actions { min-width: 0; }

  .page-hero { padding: 28px 0 40px; }
  .page-hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .page-hero h1 { font-size: 32px; }
  .breadcrumb { margin-bottom: 18px; }
  .page-media { height: 310px; }
  .page-media.ui-media { height: 300px; }
  .split, .split.reverse { grid-template-columns: 1fr; gap: 30px; }
  .split.reverse > :first-child, .split.reverse > :last-child { order: initial; }
  .media-frame { min-height: 300px; }
  .media-frame img { max-height: 420px; }
  .three-grid, .two-grid, .four-grid { grid-template-columns: 1fr; gap: 14px; }
  .mobile-scroll { display: grid; grid-template-columns: 1fr; grid-auto-flow: row; grid-auto-columns: auto; gap: 14px; overflow: visible; }
  .info-card, .path-card, .audience-card, .qr-entry, .fact-panel { padding: 22px 20px; }
  .current-future, .mall-paths { grid-template-columns: 1fr; }
  .current-future article, .mall-path { padding: 28px 22px; }
  .process-section .scroll-hint { display: none; }
  .process-list { display: grid; grid-template-columns: 1fr; overflow: visible; }
  .process-list li { min-width: 0; min-height: 0; padding: 20px 10px; border-right: 0; }
  .process-list li::before { margin-bottom: 12px; }
  .spec-table, .spec-table tbody { display: block; }
  .spec-table tr { padding: 14px 0; display: grid; gap: 5px; border-bottom: 1px solid var(--line); }
  .spec-table th, .spec-table td { width: auto; padding: 0; display: block; border: 0; }
  .spec-table th { font-size: 13px; }
  .spec-table td { font-size: 14px; }
  .gallery { grid-template-columns: repeat(3, min(82vw, 300px)); }
  .gallery button { height: 360px; }
  .mall-path .qr-inline { margin-inline: auto; }
  .contact-priority { grid-template-columns: 1fr; }
  .contact-direct, .form-panel { padding: 26px 20px; }
  .contact-direct dl div { grid-template-columns: 72px minmax(0,1fr); gap: 8px; }
  .contact-direct dd { min-width: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; overflow-wrap: anywhere; }
  .copy-btn { margin-left: 0; }
  .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .form-actions { display: grid; }
  .channel-strip { display: grid; grid-auto-flow: column; grid-auto-columns: min(78vw, 280px); grid-template-columns: none; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .channel-strip > * { scroll-snap-align: start; }
  .channel-strip::-webkit-scrollbar { display: none; }

  .footer-top { grid-template-columns: 1fr; gap: 26px; }
  .footer-links { justify-content: flex-start; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 12px; }
  .footer-records { justify-content: flex-start; flex-direction: column; gap: 10px; }
  .site-footer { padding-bottom: 28px; }

  .mobile-contact-bar {
    position: fixed;
    z-index: 90;
    left: 0;
    right: 0;
    bottom: 0;
    min-height: calc(56px + env(safe-area-inset-bottom));
    padding: 7px 10px calc(7px + env(safe-area-inset-bottom));
    display: grid;
    grid-template-columns: .9fr .9fr 1.2fr;
    gap: 7px;
    background: rgba(7,9,11,.97);
    border-top: 1px solid var(--line-strong);
  }
  .mobile-contact-bar a, .mobile-contact-bar button { min-height: 44px; padding: 8px 5px; display: grid; place-items: center; color: #eef4f5; background: #11171b; border: 1px solid var(--line); border-radius: 4px; font-size: 12px; font-weight: 700; text-align: center; }
  .mobile-contact-bar .primary { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
  body.is-wechat-webview .mobile-contact-bar { position: static; margin-top: 0; padding-bottom: calc(7px + env(safe-area-inset-bottom)); }
  body.is-miniprogram-webview .mobile-contact-bar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 360px) {
  .container { width: min(calc(100% - 24px), var(--container)); }
  h1, .page-hero h1 { font-size: 30px; }
  h2 { font-size: 25px; }
  .hero-actions { grid-template-columns: 1fr; }
  .hero-actions .text-link { grid-column: auto; }
  .hero-device { height: 270px; }
  .case-feature picture, .case-detail picture { height: 290px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media (forced-colors: active) {
  .btn, .nav-cta, .status-badge { border: 1px solid ButtonText; }
}