:root {
  --bg: #0a0a0f;
  --panel: #121218;
  --panel-2: #181820;
  --text: #f5f5f7;
  --muted: rgba(245, 245, 247, .68);
  --line: rgba(255, 255, 255, .1);
  --accent: #ff3b30;
  --accent-2: #ff6b5e;
  --paper: #fff;
  --ink: #1c1c21;
  --soft-ink: #5e6068;
  --soft-line: #e9e9ee;
  --radius: 8px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  position: relative;
  min-height: 100vh;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at var(--pointer-x, 55%) var(--pointer-y, 35%), rgba(255,59,48,.18), transparent 24rem),
    linear-gradient(115deg, transparent 0%, rgba(255,255,255,.035) 42%, transparent 58%);
  opacity: .88;
  transition: opacity .2s ease;
}
main, .site-footer { position: relative; z-index: 1; }
a { color: inherit; text-decoration: none; }
p { line-height: 1.8; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 52px;
  background: rgba(10,10,15,.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.brand img { display: block; height: 22px; border-radius: 6px; }
.main-nav { display: flex; align-items: center; gap: 30px; margin-left: 18px; }
.main-nav a { color: rgba(245,245,247,.74); font-size: 17px; font-weight: 720; }
.main-nav a:hover, .main-nav a.active { color: #fff; }
.nav-cta {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 18px;
  background: #fff;
  color: #0a0a0f;
  border-radius: var(--radius);
  font-weight: 760;
  font-size: 14px;
  white-space: nowrap;
}
.mobile-nav-toggle,
.mobile-nav-download {
  display: none;
}
.mobile-nav-toggle {
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius);
  background: rgba(255,255,255,.05);
  color: #fff;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.mobile-nav-toggle:hover,
body.mobile-nav-open .mobile-nav-toggle {
  background: rgba(255,59,48,.14);
  border-color: rgba(255,107,94,.54);
  box-shadow: 0 12px 34px rgba(255,59,48,.1);
}
.mobile-nav-toggle:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 4px;
}
.mobile-nav-toggle:active {
  transform: translateY(1px);
}
.mobile-nav-line {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform .2s ease, opacity .2s ease;
}
body.mobile-nav-open .mobile-nav-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
body.mobile-nav-open .mobile-nav-line:nth-child(2) {
  opacity: 0;
}
body.mobile-nav-open .mobile-nav-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.hero {
  max-width: 1240px;
  margin: 0 auto;
  min-height: calc(100dvh - 72px);
  padding: 84px 40px 72px;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, .96fr);
  align-items: center;
  gap: 64px;
}
.eyebrow, .section-kicker {
  display: inline-flex;
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 14px;
}
h1, h2, h3 { margin: 0; letter-spacing: 0; }
.hero h1 { font-size: clamp(44px, 6vw, 76px); line-height: 1.05; max-width: 760px; }
.home-hero-title span, .home-hero-title strong { display: block; }
.home-hero-title span { font-size: .62em; font-weight: 780; color: rgba(245,245,247,.76); }
.home-hero-title strong { margin-top: 8px; font-size: 1.18em; line-height: .95; color: #fff; }
.hero-lead { margin: 24px 0 0; max-width: 680px; font-size: clamp(18px, 2vw, 22px); color: var(--muted); }
.hero-actions, .download-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 32px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-weight: 800;
  white-space: nowrap;
}
.button.primary { background: var(--accent); color: #fff; }
.button.primary:hover { background: #e93027; }
.button.secondary { background: rgba(255,255,255,.05); color: #fff; border-color: var(--line); }
.download-os-button {
  min-height: 50px;
  width: 230px;
  padding: 0 22px;
  border: 2px solid rgba(255,255,255,.9);
  border-radius: 8px;
  background: #111;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  box-shadow: none;
  transition: transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.download-os-button:hover {
  background: #1b1b1b;
  transform: translateY(-1px);
  border-color: #fff;
  box-shadow: 0 10px 30px rgba(255,255,255,.08);
}
.download-os-button:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 4px;
}
.download-os-button:active {
  transform: translateY(1px);
}
.download-os-button svg {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  display: block;
}
.download-os-button .chevron {
  width: 14px;
  height: 14px;
  opacity: .78;
  margin-left: 2px;
  transition: transform .18s ease;
}
.hero-actions .download-os-button {
  width: 178px;
  padding-left: 10px;
  padding-right: 10px;
  gap: 8px;
  font-size: 15px;
}
.hero-actions {
  flex-wrap: nowrap;
}
.hero-actions .download-os-button svg {
  width: 20px;
  height: 20px;
}
.hero-actions .download-os-button .chevron {
  width: 12px;
  height: 12px;
}
.download-menu-wrap {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
}
.download-menu-wrap::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 10px;
}
.download-menu-wrap:hover .chevron,
.download-menu-wrap:focus-within .chevron {
  transform: rotate(180deg);
}
.download-version-menu {
  position: absolute;
  z-index: 20;
  left: 0;
  top: calc(100% + 8px);
  width: 280px;
  padding: 7px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 10px;
  background: rgba(18,18,24,.96);
  color: var(--text);
  box-shadow: 0 24px 70px rgba(0,0,0,.5), 0 0 0 1px rgba(255,59,48,.08), 0 12px 42px rgba(255,59,48,.12);
  backdrop-filter: blur(14px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px) scale(.98);
  transform-origin: top left;
  transition: opacity .18s ease, visibility .18s ease, transform .18s ease;
}
.download-version-menu::before {
  content: "";
  position: absolute;
  left: 22px;
  top: -6px;
  width: 10px;
  height: 10px;
  border-left: 1px solid rgba(255,255,255,.16);
  border-top: 1px solid rgba(255,255,255,.16);
  background: rgba(18,18,24,.96);
  transform: rotate(45deg);
}
.download-menu-wrap:hover .download-version-menu,
.download-menu-wrap:focus-within .download-version-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}
.download-version-item {
  min-height: 44px;
  padding: 0 14px 0 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: rgba(245,245,247,.9);
  font-size: 18px;
  line-height: 1.2;
  position: relative;
  z-index: 1;
  transition: background .18s ease, color .18s ease, transform .18s ease;
}
.download-version-item:hover {
  background: linear-gradient(90deg, rgba(255,59,48,.18), rgba(255,255,255,.06));
  color: #fff;
  transform: translateX(2px);
}
.download-version-item[aria-disabled="true"] {
  color: rgba(245,245,247,.44);
  cursor: not-allowed;
}
.download-version-icon {
  width: 17px;
  height: 17px;
  color: var(--accent-2);
  flex: 0 0 auto;
  opacity: .9;
}
.mini-program-entry-wrap {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
}
.hero-actions .mini-program-entry-wrap,
.download-panel .mini-program-entry-wrap {
  order: -1;
}
.mini-program-entry-wrap::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 12px;
}
.mini-program-trigger {
  border-color: rgba(255,107,94,.72);
  background: rgba(255,59,48,.08);
  color: #fff;
  cursor: pointer;
}
.mini-program-trigger:hover,
.mini-program-entry-wrap:focus-within .mini-program-trigger,
.mini-program-entry-wrap.is-open .mini-program-trigger {
  background: rgba(255,59,48,.18);
  border-color: var(--accent-2);
  box-shadow: 0 12px 34px rgba(255,59,48,.12);
}
.mini-program-popover {
  position: absolute;
  z-index: 30;
  right: 0;
  bottom: calc(100% + 10px);
  width: 238px;
  padding: 14px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 10px;
  background: rgba(18,18,24,.97);
  color: var(--text);
  box-shadow: 0 26px 80px rgba(0,0,0,.52), 0 12px 42px rgba(255,59,48,.13);
  backdrop-filter: blur(14px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(6px) scale(.98);
  transform-origin: bottom right;
  transition: opacity .18s ease, visibility .18s ease, transform .18s ease;
}
.mini-program-popover::before {
  content: "";
  position: absolute;
  right: 24px;
  bottom: -6px;
  width: 10px;
  height: 10px;
  border-right: 1px solid rgba(255,255,255,.16);
  border-bottom: 1px solid rgba(255,255,255,.16);
  background: rgba(18,18,24,.97);
  transform: rotate(45deg);
}
.mini-program-entry-wrap:hover .mini-program-popover,
.mini-program-entry-wrap:focus-within .mini-program-popover,
.mini-program-entry-wrap.is-open .mini-program-popover {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}
.mini-program-qr-frame {
  padding: 10px;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(0,0,0,.28);
}
.mini-program-qr-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}
.mini-program-popover strong {
  display: block;
  margin-top: 12px;
  color: #fff;
  font-size: 16px;
  line-height: 1.45;
}
.mini-program-popover p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}
.hero-visual {
  position: relative;
  min-height: 460px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(255,59,48,.14), transparent 44%), linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual img { width: min(58%, 300px); border-radius: 16px; filter: drop-shadow(0 28px 70px rgba(255,59,48,.2)); }
.flow-card {
  position: absolute;
  width: 210px;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
  transform-origin: center;
  cursor: pointer;
}
.flow-card.light { left: 34px; bottom: 42px; background: #fff; color: var(--ink); }
.flow-card.dark { right: 34px; top: 42px; background: #17171f; color: #fff; border-color: var(--line); }
.flow-card span { display: block; color: var(--soft-ink); font-size: 13px; margin-bottom: 8px; }
.flow-card.dark span { color: var(--muted); }
.flow-card strong { font-size: 18px; }
.section { max-width: 1180px; margin: 0 auto; padding: 86px 40px; }
.section.compact { padding-top: 18px; padding-bottom: 36px; }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading h2, .safety h2, .download-panel h2 { font-size: clamp(30px, 4vw, 46px); line-height: 1.2; }
.download-panel h2 { white-space: normal; text-wrap: balance; overflow-wrap: anywhere; }
.section-heading p, .safety p, .download-panel p { margin: 16px 0 0; color: var(--muted); max-width: 720px; }
.definition-box { padding: 30px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(255,255,255,.04); }
.definition-box p { margin: 0; font-size: 20px; color: rgba(245,245,247,.82); }
.product-grid, .feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.product-card, .feature-item, .scenario-card, .opc-card { padding: 28px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(255,255,255,.04); }
.product-card span, .feature-item span { color: var(--accent-2); font-size: 13px; font-weight: 800; }
.product-card h3, .feature-item h3 { margin-top: 12px; font-size: 24px; }
.product-card p, .feature-item p { color: var(--muted); }
.product-card ul { margin: 22px 0; padding-left: 20px; color: rgba(245,245,247,.78); line-height: 1.9; }
.text-link { color: #fff; font-weight: 800; border-bottom: 1px solid rgba(255,255,255,.35); }
.feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature-grid.small { grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 24px 0; }
.band { max-width: none; background: #fff; color: var(--ink); }
.band .section-heading { max-width: 1180px; margin: 0 auto 34px; }
.steps { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.steps div { padding: 22px; border: 1px solid var(--soft-line); border-radius: var(--radius); }
.steps span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-bottom: 16px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 900;
}
.steps strong { display: block; font-size: 18px; }
.steps p { color: var(--soft-ink); margin-bottom: 0; }
.safety { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1fr); gap: 48px; align-items: start; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.download-panel { display: grid; grid-template-columns: 1fr; gap: 20px; align-items: center; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.04); }
.download-copy { min-width: 0; }
.download-panel .download-actions { width: 100%; justify-self: stretch; align-items: center; justify-content: center; flex-direction: row; flex-wrap: nowrap; gap: 18px; margin-top: 0; }
.download-panel .download-os-button {
  width: 206px;
  padding-left: 16px;
  padding-right: 16px;
  font-size: 17px;
}
.mini-conversion {
  max-width: 1120px;
  margin: 0 auto 88px;
  padding: 0 40px;
}
.article-page .mini-conversion {
  max-width: none;
  margin: 4px 0 42px;
  padding: 0;
}
.mini-conversion-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(255,59,48,.11), rgba(255,255,255,.045) 46%, rgba(255,255,255,.02));
  box-shadow: 0 24px 74px rgba(0,0,0,.22);
}
.mini-conversion-copy h2 {
  margin: 8px 0 0;
  font-size: clamp(28px, 3.5vw, 40px);
  line-height: 1.18;
  text-wrap: balance;
}
.mini-conversion-copy p {
  max-width: 700px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}
.mini-conversion-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.mini-conversion-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  color: rgba(245,245,247,.78);
  font-size: 14px;
  font-weight: 700;
}
.mini-conversion-action {
  justify-self: end;
  min-width: 188px;
}
.mini-conversion-action .download-os-button {
  width: 188px;
}
.page-hero, .article-page { max-width: 980px; margin: 0 auto; padding: 86px 40px 46px; }
.scenario-hero { max-width: 1120px; }
.page-hero h1, .article h1 { font-size: clamp(38px, 5vw, 58px); line-height: 1.12; }
.article h1.pc-title span { display: block; margin-bottom: 8px; font-size: .72em; font-weight: 780; color: rgba(245,245,247,.78); }
.page-hero p, .article .lead { font-size: 20px; color: var(--muted); margin-top: 18px; }
.article { padding-bottom: 50px; }
.article h2 { margin-top: 44px; font-size: 30px; }
.article p, .article li { color: rgba(245,245,247,.78); font-size: 17px; }
.article ul, .article ol { line-height: 1.9; padding-left: 24px; }
.article blockquote, .article .company-statement, .article .statement-card { margin: 24px 0; padding: 22px 24px; border-left: 4px solid var(--accent); background: rgba(255,255,255,.05); color: rgba(245,245,247,.82); border-radius: 0 var(--radius) var(--radius) 0; line-height: 1.8; }
.article .lead.company-statement { margin-top: 24px; font-size: 18px; }
.article .statement-card + .statement-card { margin-top: 14px; }
.article .statement-card p { margin: 0; }
.article .statement-card p + p { margin-top: 14px; }
.article .statement-card ul { margin: 14px 0 0; padding-left: 22px; }
.article .statement-card li + li { margin-top: 8px; }
.article ul.statement-card, .article ol.statement-card { padding-left: 46px; }
.product-advantage { margin: 34px 0; }
.product-advantage > h2 { margin-top: 10px; }
.advantage-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); grid-auto-rows: 256px; align-items: stretch; gap: 14px; margin-top: 18px; }
.article .advantage-card { display: flex; flex-direction: column; justify-content: flex-start; align-self: stretch; min-height: 0; height: 100%; margin: 0; padding: 22px; border: 1px solid var(--line); border-left: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.04); }
.article .advantage-grid .advantage-card + .advantage-card { margin-top: 0; }
.advantage-card h3 { margin: 0 0 10px; font-size: 20px; line-height: 1.35; }
.article .advantage-card p { color: var(--muted); line-height: 1.72; }
.legal-page { max-width: 1040px; }
.legal-article { padding-bottom: 68px; }
.legal-document {
  margin-top: 34px;
  display: grid;
  gap: 14px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.legal-document h2 {
  margin: 30px 0 4px;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.25;
}
.legal-document h3 {
  margin: 18px 0 0;
  font-size: 20px;
  line-height: 1.45;
  color: rgba(245,245,247,.92);
}
.legal-document p {
  margin: 0;
  color: rgba(245,245,247,.76);
  font-size: 16px;
  line-height: 1.9;
  overflow-wrap: anywhere;
}
.legal-document .legal-emphasis {
  color: #fff;
  font-weight: 800;
}
.compare-table, .info-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; margin: 24px 0; }
.compare-table div, .info-grid div { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.04); }
.compare-table strong, .compare-table span, .info-grid span, .info-grid strong { display: block; }
.compare-table span, .info-grid span { color: var(--muted); margin-top: 8px; }
.prompt-list { display: grid; gap: 12px; margin-top: 20px; }
.prompt-list p { margin: 0; padding: 18px 20px; background: rgba(255,255,255,.05); border: 1px solid var(--line); border-radius: var(--radius); }
.service-loop { max-width: 1120px; margin: 0 auto 28px; padding: 0 40px; }
.service-loop-heading { max-width: 760px; margin-bottom: 22px; }
.service-loop-heading h2 { margin: 8px 0 0; font-size: clamp(30px, 4.2vw, 46px); line-height: 1.14; text-wrap: balance; }
.service-loop-heading p { color: var(--muted); margin: 14px 0 0; max-width: 660px; }
.service-loop-grid { list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; margin: 0; padding: 0; }
.service-loop-step { min-height: 190px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.035); }
.service-loop-step span { display: inline-flex; margin-bottom: 28px; color: var(--accent-2); font-weight: 850; font-size: 13px; letter-spacing: .08em; }
.service-loop-step strong { display: block; font-size: 20px; line-height: 1.35; }
.service-loop-step p { margin: 10px 0 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.opc-fit { max-width: 1120px; margin: 0 auto 28px; padding: 0 40px; }
.scenario-list-heading { max-width: 760px; margin-bottom: 22px; }
.scenario-list-heading h2 { margin: 8px 0 0; font-size: clamp(30px, 4.2vw, 46px); line-height: 1.14; text-wrap: balance; }
.scenario-list-heading p { color: var(--muted); margin: 14px 0 0; max-width: 680px; line-height: 1.75; }
.opc-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.opc-card { min-height: 210px; display: flex; flex-direction: column; justify-content: space-between; gap: 14px; }
.opc-card h3 { margin: 0; font-size: 21px; line-height: 1.35; }
.opc-card p { margin: 0; color: var(--muted); line-height: 1.72; font-size: 15px; }
.opc-card strong { color: #fff; font-size: 15px; line-height: 1.55; }
.scenario-list { max-width: 1120px; margin: 0 auto 28px; padding: 0 40px; display: grid; gap: 18px; }
.scenario-card h2 { font-size: 30px; }
.scenario-card dl { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; margin: 22px 0 0; }
.scenario-card dt { color: var(--accent-2); font-weight: 850; margin-bottom: 6px; }
.scenario-card dd { margin: 0; color: var(--muted); line-height: 1.75; }
.service-compliance { max-width: 1120px; margin: 0 auto 80px; padding: 22px 40px; display: grid; grid-template-columns: minmax(160px, .34fr) 1fr auto; align-items: center; gap: 18px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.service-compliance strong { font-size: 18px; }
.service-compliance p { margin: 0; color: var(--muted); line-height: 1.75; }
.service-compliance-links { display: flex; gap: 14px; flex-wrap: wrap; justify-content: flex-end; }
.service-compliance-links a { color: #fff; font-weight: 760; white-space: nowrap; border-bottom: 1px solid rgba(255,255,255,.32); }
.faq-list { max-width: 980px; margin: 0 auto 88px; padding: 0 40px; }
details { border-top: 1px solid var(--line); padding: 22px 0; }
details:last-child { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-size: 20px; font-weight: 850; }
details p { color: var(--muted); margin-bottom: 0; }
.site-footer { border-top: 1px solid var(--line); padding: 44px 56px 36px; background: #08080c; }
.footer-main { max-width: 860px; }
.footer-logo { height: 26px; border-radius: 6px; }
.footer-main p { color: var(--muted); max-width: 760px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; margin: 28px 0; }
.footer-links a { color: rgba(245,245,247,.72); font-size: 14px; }
.footer-legal { display: flex; gap: 16px; flex-wrap: wrap; color: rgba(245,245,247,.42); font-size: 13px; }
.hero-visual::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: conic-gradient(from 120deg, transparent, rgba(255,59,48,.22), transparent 34%, rgba(255,255,255,.1), transparent 62%);
  animation: visualSweep 12s linear infinite;
}
.hero-visual::after {
  content: "";
  position: absolute;
  left: 22%;
  right: 22%;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,107,94,.9), transparent);
  animation: dataPulse 2.8s ease-in-out infinite;
}
.hero-visual img { position: relative; z-index: 1; }
.flow-card {
  z-index: 2;
  transform: translate3d(var(--tilt-x, 0), var(--tilt-y, 0), 0) scale(var(--flow-scale, 1));
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.flow-card:hover {
  --flow-scale: 1.045;
  border-color: rgba(255,107,94,.38);
  box-shadow: 0 26px 76px rgba(0,0,0,.34), 0 14px 42px rgba(255,59,48,.12);
}
.flow-card:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 4px;
}
.flow-card.light { animation: floatSoft 6s ease-in-out infinite; }
.flow-card.dark { animation: floatSoft 6s ease-in-out infinite reverse; }
.product-card, .feature-item, .scenario-card, .opc-card, .service-loop-step, .download-panel, .definition-box, .article, details,
.compare-table div, .info-grid div, .prompt-list p, .steps div, .article blockquote:not(.static-card), .article .company-statement {
  transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease, background .24s ease;
  will-change: transform;
}
.product-card:hover, .feature-item:hover, .scenario-card:hover, .opc-card:hover, .service-loop-step:hover, .download-panel:hover, .definition-box:hover, details:hover,
.compare-table div:hover, .info-grid div:hover, .prompt-list p:hover, .steps div:hover, .article blockquote:not(.static-card):hover, .article .company-statement:hover {
  transform: translateY(-4px) scale(1.012);
  border-color: rgba(255,107,94,.34);
  box-shadow: 0 22px 70px rgba(255,59,48,.08);
}
.article .static-card:hover {
  transform: none;
  border-color: var(--accent);
  box-shadow: none;
}
.steps div:hover {
  border-color: rgba(255,59,48,.34);
  box-shadow: 0 20px 54px rgba(0,0,0,.08), 0 16px 42px rgba(255,59,48,.12);
}
.button:active, .nav-cta:active, .text-link:active, .download-os-button:active {
  transform: translateY(1px);
}
.button.primary {
  box-shadow: 0 0 0 rgba(255,59,48,0);
  animation: ctaBreath 4s ease-in-out infinite;
}
.reveal-motion {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal-motion.visible {
  opacity: 1;
  transform: translateY(0);
}
.legal-article.reveal-motion {
  opacity: 1;
  transform: none;
}
summary {
  transition: color .2s ease;
}
details[open] summary {
  color: #fff;
}
details[open] p {
  animation: answerIn .24s ease both;
}
@keyframes visualSweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes dataPulse {
  0%, 100% { opacity: .25; transform: scaleX(.76); }
  50% { opacity: 1; transform: scaleX(1); }
}
@keyframes floatSoft {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -10px; }
}
@keyframes ctaBreath {
  0%, 100% { box-shadow: 0 0 0 rgba(255,59,48,0); }
  50% { box-shadow: 0 0 34px rgba(255,59,48,.22); }
}
@keyframes answerIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }
  .reveal-motion {
    opacity: 1;
    transform: none;
  }
}
@media (max-width: 960px) {
  .site-header { padding: 0 20px; gap: 14px; }
  .mobile-nav-toggle { display: inline-flex; flex: 0 0 auto; }
  .main-nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: calc(100% + 10px);
    display: grid;
    gap: 4px;
    margin-left: 0;
    padding: 10px;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 10px;
    background: rgba(18,18,24,.98);
    box-shadow: 0 24px 70px rgba(0,0,0,.46), 0 12px 42px rgba(255,59,48,.12);
    backdrop-filter: blur(16px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px) scale(.98);
    transform-origin: top right;
    transition: opacity .2s ease, visibility .2s ease, transform .2s ease;
  }
  body.mobile-nav-open .main-nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
  }
  .main-nav a {
    min-height: 44px;
    padding: 0 14px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    color: rgba(245,245,247,.82);
    font-size: 16px;
  }
  .main-nav a:hover,
  .main-nav a.active {
    background: rgba(255,59,48,.14);
    color: #fff;
  }
  .nav-cta { margin-left: auto; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding: 54px 22px 48px; gap: 30px; }
  .hero h1 { font-size: 42px; }
  .hero-visual { min-height: 360px; flex-direction: column; padding: 28px 16px 16px; justify-content: flex-start; }
  .hero-visual img { width: 140px; margin-bottom: 20px; }
  .flow-card { position: static; width: 100%; max-width: 280px; margin: 0 0 12px; }
  .download-version-menu { width: min(280px, calc(100vw - 44px)); }
  .mini-program-popover {
    left: 50%;
    right: auto;
    width: min(238px, calc(100vw - 44px));
    transform: translate(-50%, 6px) scale(.98);
    transform-origin: bottom center;
  }
  .mini-program-popover::before { left: 50%; right: auto; transform: translateX(-50%) rotate(45deg); }
  .mini-program-entry-wrap:hover .mini-program-popover,
  .mini-program-entry-wrap:focus-within .mini-program-popover,
  .mini-program-entry-wrap.is-open .mini-program-popover {
    transform: translate(-50%, 0) scale(1);
  }
  .section, .page-hero, .article-page { padding-left: 22px; padding-right: 22px; }
  .product-grid, .feature-grid, .feature-grid.small, .steps, .safety, .download-panel, .compare-table, .info-grid, .service-loop-grid, .scenario-card dl, .service-compliance, .advantage-grid { grid-template-columns: 1fr; }
  .advantage-grid { grid-auto-rows: auto; }
  .article .advantage-card { height: auto; min-height: 0; }
  .opc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .band { padding-left: 22px; padding-right: 22px; }
  .service-loop, .opc-fit, .scenario-list, .faq-list { padding-left: 22px; padding-right: 22px; }
  .service-loop-step { min-height: 0; }
  .service-loop-step span { margin-bottom: 18px; }
  .service-compliance { margin-bottom: 58px; padding-left: 22px; padding-right: 22px; align-items: start; }
  .service-compliance-links { justify-content: flex-start; }
  .mini-conversion { padding-left: 22px; padding-right: 22px; }
  .article-page .mini-conversion { padding-left: 0; padding-right: 0; }
  .mini-conversion-inner { grid-template-columns: 1fr; gap: 22px; }
  .mini-conversion-action { justify-self: start; width: 100%; max-width: 260px; }
  .mini-conversion-action .download-os-button { width: 100%; }
  .site-footer { padding-left: 22px; padding-right: 22px; }
}
@media (max-width: 760px) {
  .download-panel h2 { white-space: normal; }
  .download-panel .download-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    justify-self: stretch;
    align-items: center;
    justify-content: center;
    gap: 10px;
  }
  .download-panel .download-os-button {
    width: 100%;
    min-width: 0;
    min-height: 48px;
    padding-left: 8px;
    padding-right: 8px;
    gap: 6px;
    font-size: 14px;
  }
  .download-panel .download-os-button svg {
    width: 18px;
    height: 18px;
  }
  .download-panel .download-os-button .chevron {
    width: 12px;
    height: 12px;
  }
}
@media (max-width: 640px) {
  .hero-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
    gap: 10px;
  }
  .hero-actions .download-os-button {
    width: 100%;
    min-width: 0;
    min-height: 48px;
    padding-left: 8px;
    padding-right: 8px;
    gap: 6px;
    font-size: 14px;
  }
  .hero-actions .download-os-button svg {
    width: 18px;
    height: 18px;
  }
  .mini-conversion { margin-bottom: 58px; }
  .mini-conversion-inner { padding: 24px; }
  .mini-conversion-copy h2 { font-size: 27px; }
  .mini-conversion-copy p { font-size: 16px; }
  .mini-conversion-action { max-width: none; }
  .mini-conversion .mini-program-entry-wrap::after,
  .mini-conversion .mini-program-popover::before {
    display: none;
  }
  .mini-conversion .mini-program-popover {
    position: static;
    display: none;
    width: 100%;
    margin-top: 14px;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    transform-origin: center;
  }
  .mini-conversion .mini-program-entry-wrap:hover .mini-program-popover,
  .mini-conversion .mini-program-entry-wrap:focus-within .mini-program-popover {
    display: none;
    transform: none;
  }
  .mini-conversion .mini-program-entry-wrap.is-open .mini-program-popover {
    display: block;
    transform: none;
  }
  .opc-grid { grid-template-columns: 1fr; }
  .opc-card { min-height: 0; }
}
@media (max-width: 520px) {
  .brand img { max-width: 180px; height: auto; }
  .nav-cta { display: none; }
  .main-nav .mobile-nav-download {
    display: flex;
    justify-content: center;
    margin-top: 4px;
    background: #fff;
    color: #0a0a0f;
    font-weight: 800;
  }
  .main-nav .mobile-nav-download:hover,
  .main-nav .mobile-nav-download.active {
    background: #fff;
    color: #0a0a0f;
    box-shadow: 0 12px 34px rgba(255,255,255,.12);
  }
  .hero-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-actions .download-os-button {
    width: 100%;
    max-width: 280px;
    min-height: 50px;
    padding-left: 16px;
    padding-right: 16px;
    gap: 12px;
    font-size: 17px;
  }
  .download-panel .download-actions {
    display: flex;
    flex-direction: column;
  }
  .download-panel .download-os-button {
    width: 100%;
    max-width: 280px;
    min-height: 50px;
    padding-left: 16px;
    padding-right: 16px;
    gap: 12px;
    font-size: 17px;
  }
  .download-panel .download-os-button svg {
    width: 22px;
    height: 22px;
  }
}