:root {
  --black: #11130f;
  --black-2: #1b1e18;
  --black-3: #282c23;
  --acid: #c7ff3d;
  --acid-soft: #ddff86;
  --paper: #f4f1e7;
  --paper-2: #e9e6dc;
  --white: #fffdf6;
  --orange: #ff6547;
  --green: #43bd64;
  --muted: #73776d;
  --line: rgba(17, 19, 15, .14);
  --shell: 1240px;
  --radius-xl: 40px;
  --radius-lg: 28px;
  --radius-md: 18px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; background: var(--black); }
body {
  min-width: 320px;
  overflow-x: hidden;
  color: var(--black);
  background: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; font: inherit; }
::selection { color: var(--black); background: var(--acid); }

.noise {
  position: fixed;
  inset: 0;
  z-index: 500;
  pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.45'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.content-shell, .hero-shell { width: min(calc(100% - 48px), var(--shell)); margin-inline: auto; }
.section { position: relative; padding: 124px 0; }

.top-strip { position: relative; z-index: 120; color: var(--paper); background: var(--black); border-bottom: 1px solid rgba(255,255,255,.08); }
.top-strip-inner { width: min(calc(100% - 48px), 1320px); min-height: 42px; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; font-size: 11px; letter-spacing: .08em; }
.top-strip-inner > span { color: var(--acid); font-weight: 900; letter-spacing: .16em; }
.top-strip-inner p { color: #9da292; letter-spacing: .02em; }
.top-strip-inner a { color: var(--paper); border-bottom: 1px solid rgba(255,255,255,.45); }

.site-header { position: absolute; top: 42px; left: 0; z-index: 100; width: 100%; padding: 20px 0; transition: .3s ease; }
.site-header.scrolled { position: fixed; top: 0; padding: 8px 0; background: rgba(17,19,15,.9); border-bottom: 1px solid rgba(255,255,255,.08); backdrop-filter: blur(18px); }
.header-shell { width: min(calc(100% - 36px), 1320px); min-height: 70px; margin-inline: auto; padding: 0 12px 0 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border: 1px solid rgba(255,255,255,.13); border-radius: 18px; background: rgba(17,19,15,.78); box-shadow: 0 24px 55px rgba(0,0,0,.1); backdrop-filter: blur(16px); }
.brand { display: inline-flex; align-items: center; }
.brand img { width: 150px; height: auto; }
.desktop-nav { display: flex; align-items: center; gap: 34px; }
.desktop-nav a { position: relative; color: #c7cabc; font-size: 13px; }
.desktop-nav a::before { content: ""; position: absolute; left: 0; bottom: -10px; width: 100%; height: 2px; background: var(--acid); transform: scaleX(0); transform-origin: right; transition: transform .25s ease; }
.desktop-nav a:hover { color: #fff; }
.desktop-nav a:hover::before { transform: scaleX(1); transform-origin: left; }
.header-download { min-height: 46px; padding: 0 20px; display: inline-flex; align-items: center; gap: 10px; border-radius: 12px; color: var(--black); background: var(--acid); font-size: 13px; font-weight: 900; transition: transform .25s ease, box-shadow .25s ease; }
.header-download:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(199,255,61,.22); }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--black); box-shadow: 0 0 0 0 rgba(17,19,15,.38); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 8px rgba(17,19,15,0); } 100% { box-shadow: 0 0 0 0 rgba(17,19,15,0); } }
.menu-button, .mobile-menu { display: none; }

.hero { position: relative; min-height: 930px; padding: 180px 0 82px; overflow: hidden; color: var(--black); background: var(--acid); }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(17,19,15,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(17,19,15,.07) 1px, transparent 1px); background-size: 52px 52px; mask-image: linear-gradient(to right, black, transparent 82%); }
.hero::after { content: ""; position: absolute; top: 0; right: -140px; width: 48%; height: 100%; background: repeating-linear-gradient(135deg, rgba(17,19,15,.06) 0 16px, transparent 16px 32px); clip-path: polygon(30% 0,100% 0,100% 100%,0 100%); }
.hero-shell { position: relative; z-index: 2; min-height: 655px; display: grid; grid-template-columns: .92fr 1.08fr; align-items: center; gap: 60px; }
.breadcrumb { margin-bottom: 30px; display: flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 700; }
.breadcrumb a { border-bottom: 1px solid rgba(17,19,15,.35); }
.breadcrumb span { opacity: .45; }
.hero-kicker { margin-bottom: 24px; display: flex; align-items: center; gap: 11px; font-size: 11px; font-weight: 900; letter-spacing: .18em; }
.hero-kicker i { width: 35px; height: 2px; background: var(--black); }
.hero h1 { max-width: 680px; font-size: clamp(66px, 7.2vw, 112px); font-weight: 950; line-height: .9; letter-spacing: -.075em; }
.hero h1 span { display: inline-block; margin-top: 10px; padding: 4px 18px 10px 13px; color: var(--acid); background: var(--black); transform: rotate(-1.4deg); }
.hero-description { max-width: 610px; margin-top: 32px; font-size: 18px; line-height: 1.9; }
.hero-actions { margin-top: 38px; display: flex; align-items: center; gap: 27px; flex-wrap: wrap; }
.primary-button { min-height: 62px; padding: 0 24px 0 28px; display: inline-flex; align-items: center; gap: 28px; border-radius: 14px; color: var(--paper); background: var(--black); font-size: 15px; font-weight: 900; transition: transform .25s ease, box-shadow .25s ease; }
.primary-button:hover { transform: translateY(-3px); box-shadow: 0 18px 35px rgba(17,19,15,.22); }
.primary-button svg { width: 21px; fill: none; stroke: var(--acid); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.text-button { font-size: 14px; font-weight: 900; border-bottom: 1px solid rgba(17,19,15,.5); }
.text-button span { margin-left: 4px; }
.hero-facts { margin-top: 56px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid rgba(17,19,15,.22); border-bottom: 1px solid rgba(17,19,15,.22); }
.hero-facts div { padding: 19px 16px 19px 0; display: flex; flex-direction: column; gap: 2px; border-right: 1px solid rgba(17,19,15,.22); }
.hero-facts div:not(:first-child) { padding-left: 22px; }
.hero-facts div:last-child { border-right: 0; }
.hero-facts small { color: rgba(17,19,15,.6); font-size: 10px; font-weight: 900; letter-spacing: .18em; }
.hero-facts strong { font-size: 15px; }
.hero-visual { position: relative; min-width: 0; }
.hero-visual > img { position: relative; z-index: 2; width: 100%; filter: drop-shadow(0 30px 45px rgba(17,19,15,.2)); }
.visual-number { position: absolute; top: -100px; right: -32px; z-index: 0; color: rgba(17,19,15,.08); font-size: 230px; font-weight: 950; line-height: 1; letter-spacing: -.1em; }
.device-check-card { position: absolute; right: 15px; bottom: 36px; z-index: 5; min-width: 240px; padding: 17px 20px; display: flex; align-items: center; gap: 14px; color: var(--paper); border: 1px solid rgba(255,255,255,.15); border-radius: 16px; background: rgba(17,19,15,.92); box-shadow: 0 18px 40px rgba(0,0,0,.22); }
.check-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 6px rgba(67,189,100,.15); }
.device-check-card div { display: flex; flex-direction: column; }
.device-check-card small { color: #8f9587; font-size: 9px; font-weight: 900; letter-spacing: .15em; }
.device-check-card strong { font-size: 13px; }
.intent-rail { position: relative; z-index: 3; width: min(calc(100% - 48px), 1320px); min-height: 66px; margin: 48px auto 0; padding: 0 28px; display: flex; align-items: center; justify-content: space-between; gap: 15px; border: 1px solid rgba(17,19,15,.22); background: rgba(255,255,255,.16); font-size: 11px; font-weight: 900; letter-spacing: .12em; }
.intent-rail i { width: 5px; height: 5px; border-radius: 50%; background: var(--black); }

.section-heading h2 { font-size: clamp(48px, 5.5vw, 78px); line-height: 1.02; letter-spacing: -.055em; }
.eyebrow { display: inline-block; margin-bottom: 18px; color: #5e6358; font-size: 10px; font-weight: 900; letter-spacing: .21em; }
.eyebrow.light { color: var(--acid); }
.split-heading { display: grid; grid-template-columns: 1fr .8fr; align-items: end; gap: 80px; }
.split-heading > p { max-width: 560px; color: var(--muted); font-size: 16px; line-height: 1.9; }
.center-heading { max-width: 850px; margin: 0 auto 64px; text-align: center; }
.center-heading > p { max-width: 700px; margin: 22px auto 0; color: var(--muted); font-size: 16px; }

.precheck { background: var(--paper); }
.check-grid { margin-top: 62px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.check-card { position: relative; min-height: 380px; padding: 34px; overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: var(--white); transition: transform .28s ease, box-shadow .28s ease; }
.check-card:hover { transform: translateY(-7px); box-shadow: 0 22px 45px rgba(17,19,15,.08); }
.check-index { position: absolute; top: 17px; right: 22px; color: #d7d5cc; font-size: 48px; font-weight: 950; line-height: 1; }
.check-icon { width: 68px; height: 68px; margin-bottom: 55px; display: grid; place-items: center; border-radius: 50%; color: var(--acid); background: var(--black); font-size: 15px; font-weight: 950; letter-spacing: -.03em; }
.check-card:nth-child(2) .check-icon { color: var(--black); background: var(--orange); }
.check-card:nth-child(3) .check-icon { color: var(--black); background: var(--acid); }
.check-card h3 { font-size: 25px; line-height: 1.25; }
.check-card p { margin-top: 17px; color: var(--muted); font-size: 14px; }
.check-card a { position: absolute; left: 34px; bottom: 32px; font-size: 13px; font-weight: 900; border-bottom: 1px solid var(--black); }
.card-note { position: absolute; left: 34px; bottom: 32px; color: #8d9087; font-size: 11px; font-weight: 700; }

.download-station { color: var(--paper); background: var(--black); }
.download-station::before { content: ""; position: absolute; inset: 0; opacity: .08; background-image: linear-gradient(rgba(255,255,255,.4) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.4) 1px, transparent 1px); background-size: 44px 44px; }
.station-layout { position: relative; display: grid; grid-template-columns: 1fr .82fr; align-items: stretch; gap: 28px; }
.station-copy { padding: 26px 48px 26px 0; }
.station-copy h2 { font-size: clamp(50px, 5.8vw, 82px); line-height: 1; letter-spacing: -.06em; }
.station-copy > p { max-width: 630px; margin-top: 25px; color: #aeb3a7; font-size: 16px; }
.download-conditions { margin: 42px 0 36px; display: grid; gap: 11px; }
.download-conditions > div { padding: 13px 0; display: grid; grid-template-columns: 48px 1fr; align-items: center; border-bottom: 1px solid rgba(255,255,255,.1); }
.download-conditions span { color: var(--acid); font-size: 11px; font-weight: 900; }
.download-conditions p { display: flex; align-items: center; gap: 18px; color: #aeb3a7; font-size: 13px; }
.download-conditions strong { min-width: 62px; color: var(--paper); }
.download-cta { max-width: 590px; min-height: 86px; padding: 0 25px 0 28px; display: flex; align-items: center; justify-content: space-between; gap: 30px; color: var(--black); border-radius: 18px; background: var(--acid); transition: transform .25s ease, box-shadow .25s ease; }
.download-cta:hover { transform: translateY(-4px); box-shadow: 0 20px 45px rgba(199,255,61,.18); }
.download-cta > span { display: flex; flex-direction: column; font-size: 19px; font-weight: 950; }
.download-cta small { margin-bottom: 2px; font-size: 9px; letter-spacing: .18em; }
.download-cta svg, .closing a svg, .mobile-sticky svg { width: 23px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.download-disclaimer { margin-top: 17px !important; color: #747a6e !important; font-size: 11px !important; }
.station-panel { min-height: 610px; border: 1px solid rgba(255,255,255,.13); border-radius: 28px; overflow: hidden; background: #181b16; box-shadow: 0 30px 70px rgba(0,0,0,.22); }
.panel-head { min-height: 62px; padding: 0 23px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,.1); color: #9ca193; font-size: 10px; font-weight: 900; letter-spacing: .14em; }
.panel-head i { padding: 5px 9px; color: var(--black); border-radius: 999px; background: var(--acid); font-style: normal; letter-spacing: .08em; }
.panel-body { padding: 44px 38px 36px; }
.scan-circle { position: relative; width: 245px; height: 245px; margin: 0 auto 36px; display: grid; place-items: center; border: 1px dashed rgba(199,255,61,.45); border-radius: 50%; animation: rotate 18s linear infinite; }
.scan-circle::before, .scan-circle::after { content: ""; position: absolute; border-radius: 50%; }
.scan-circle::before { inset: 18px; border: 1px solid rgba(255,255,255,.1); }
.scan-circle::after { top: 50%; left: -3px; width: 6px; height: 6px; background: var(--acid); box-shadow: 0 0 15px var(--acid); }
@keyframes rotate { to { transform: rotate(360deg); } }
.scan-inner { width: 155px; height: 155px; display: grid; place-items: center; align-content: center; border-radius: 50%; color: var(--black); background: var(--acid); animation: counterRotate 18s linear infinite; }
@keyframes counterRotate { to { transform: rotate(-360deg); } }
.scan-inner span { font-size: 60px; font-weight: 950; line-height: 1; }
.scan-inner small { font-size: 9px; font-weight: 900; letter-spacing: .18em; }
.panel-status-list { display: grid; gap: 0; border-top: 1px solid rgba(255,255,255,.1); }
.panel-status-list div { padding: 12px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 12px; }
.panel-status-list span { color: #777d71; }
.panel-status-list strong { color: var(--paper); font-size: 12px; }
.panel-status-list .safe { color: var(--acid); }
.panel-guide-link { margin-top: 24px; display: flex; align-items: center; justify-content: space-between; color: var(--acid); font-size: 12px; font-weight: 900; }

.install { background: var(--paper-2); }
.install-route { width: 100%; border-radius: 30px; box-shadow: 0 28px 60px rgba(17,19,15,.12); }
.steps-grid { margin-top: 20px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.step-card { min-height: 265px; padding: 28px 25px; border: 1px solid var(--line); background: var(--white); }
.step-card:first-child { border-radius: 24px 0 0 24px; }
.step-card:last-child { border-radius: 0 24px 24px 0; }
.step-card > span { color: #9a9c95; font-size: 9px; font-weight: 900; letter-spacing: .16em; }
.step-card h3 { margin-top: 35px; font-size: 21px; line-height: 1.3; }
.step-card p { margin-top: 14px; color: var(--muted); font-size: 13px; }

.permissions { background: var(--acid); }
.permission-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 80px; align-items: start; }
.permission-title { position: sticky; top: 120px; }
.permission-title h2 { font-size: clamp(48px, 5.3vw, 74px); line-height: 1.02; letter-spacing: -.055em; }
.permission-title p { max-width: 500px; margin-top: 25px; font-size: 16px; }
.permission-flow { padding: 14px 38px 32px; border: 1px solid rgba(17,19,15,.23); background: rgba(255,255,255,.17); }
.permission-row { padding: 30px 0; display: grid; grid-template-columns: 60px 1fr; gap: 20px; border-bottom: 1px solid rgba(17,19,15,.2); }
.permission-row > span { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; color: var(--acid); background: var(--black); font-size: 11px; font-weight: 900; }
.permission-row strong { font-size: 20px; }
.permission-row p { margin-top: 5px; color: rgba(17,19,15,.68); font-size: 13px; }
.permission-warning { margin-top: 30px; padding: 22px; display: grid; grid-template-columns: 40px 1fr; gap: 16px; align-items: center; color: var(--paper); background: var(--black); }
.permission-warning i { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; color: var(--black); background: var(--orange); font-style: normal; font-weight: 950; }
.permission-warning p { font-size: 12px; }

.troubleshoot { background: var(--paper); }
.issue-table { margin-top: 62px; border: 1px solid var(--line); border-radius: 24px; overflow: hidden; background: var(--white); }
.issue-row { min-height: 92px; padding: 22px 28px; display: grid; grid-template-columns: .65fr .9fr 1.25fr; align-items: center; gap: 28px; border-bottom: 1px solid var(--line); }
.issue-row:last-child { border-bottom: 0; }
.issue-head { min-height: 56px; color: var(--acid); background: var(--black); font-size: 10px; font-weight: 900; letter-spacing: .14em; }
.issue-row strong { font-size: 15px; }
.issue-row p { color: var(--muted); font-size: 13px; }
.quick-diagnosis { margin-top: 18px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.quick-diagnosis div { padding: 24px; display: grid; grid-template-columns: 44px 1fr; column-gap: 16px; align-items: center; border: 1px solid var(--line); border-radius: 18px; }
.quick-diagnosis span { grid-row: 1 / span 2; width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; color: var(--black); background: var(--acid); font-size: 11px; font-weight: 900; }
.quick-diagnosis strong { font-size: 15px; }
.quick-diagnosis p { color: var(--muted); font-size: 11px; }

.update { color: var(--paper); background: var(--black); }
.update-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 18px; }
.update-card { min-height: 420px; padding: 35px; border: 1px solid rgba(255,255,255,.13); border-radius: 24px; background: #181b16; }
.update-main { color: var(--black); background: var(--acid); }
.update-main h2 { font-size: clamp(42px, 4.4vw, 64px); line-height: 1.02; letter-spacing: -.055em; }
.update-main > p { max-width: 650px; margin-top: 22px; font-size: 14px; }
.update-main ul { margin-top: 40px; display: grid; gap: 12px; list-style: none; }
.update-main li { padding: 12px 0; border-top: 1px solid rgba(17,19,15,.2); font-size: 13px; font-weight: 800; }
.update-number { width: 62px; height: 62px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.15); border-radius: 50%; color: var(--acid); font-size: 28px; font-weight: 950; }
.update-card h3 { margin-top: 115px; font-size: 25px; line-height: 1.25; }
.update-card > p { margin-top: 16px; color: #9ea497; font-size: 13px; }

.faq { background: var(--paper-2); }
.faq-shell { display: grid; grid-template-columns: .64fr 1.36fr; gap: 85px; align-items: start; }
.faq-side { position: sticky; top: 120px; }
.faq-side h2 { font-size: clamp(48px, 5vw, 70px); line-height: 1.02; letter-spacing: -.055em; }
.faq-side p { margin-top: 22px; color: var(--muted); font-size: 14px; }
.faq-side a { display: inline-block; margin-top: 30px; font-size: 12px; font-weight: 900; border-bottom: 1px solid var(--black); }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button { width: 100%; min-height: 92px; padding: 0; display: flex; align-items: center; justify-content: space-between; gap: 30px; border: 0; background: transparent; text-align: left; cursor: pointer; }
.faq-item button span { font-size: 19px; font-weight: 900; }
.faq-item button i { position: relative; flex: 0 0 38px; width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 50%; }
.faq-item button i::before, .faq-item button i::after { content: ""; position: absolute; top: 50%; left: 50%; width: 13px; height: 2px; background: var(--black); transform: translate(-50%,-50%); transition: transform .25s ease; }
.faq-item button i::after { transform: translate(-50%,-50%) rotate(90deg); }
.faq-item.open button i { background: var(--acid); border-color: var(--acid); }
.faq-item.open button i::after { transform: translate(-50%,-50%) rotate(0); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-answer p { max-width: 760px; padding: 0 60px 30px 0; color: var(--muted); font-size: 14px; }

.related { background: var(--paper); }
.related-head { margin-bottom: 48px; display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.related-head span { font-size: 10px; font-weight: 900; letter-spacing: .18em; }
.related-head h2 { max-width: 650px; font-size: clamp(38px, 4vw, 58px); line-height: 1.05; letter-spacing: -.05em; text-align: right; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.related-card { min-height: 250px; padding: 28px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 20px; background: var(--white); transition: transform .25s ease, background .25s ease; }
.related-card:hover { transform: translateY(-6px); color: var(--paper); background: var(--black); }
.related-card small { color: #969990; font-size: 9px; font-weight: 900; letter-spacing: .14em; }
.related-card strong { margin-top: 55px; font-size: 21px; line-height: 1.3; }
.related-card span { margin-top: auto; font-size: 12px; font-weight: 900; }
.related-card:hover span { color: var(--acid); }

.closing { padding: 40px 0 90px; background: var(--paper); }
.closing-inner { padding: 55px 58px; display: flex; align-items: center; justify-content: space-between; gap: 40px; color: var(--black); border-radius: 28px; background: var(--acid); }
.closing span { font-size: 9px; font-weight: 900; letter-spacing: .18em; }
.closing h2 { margin-top: 8px; font-size: clamp(34px, 3.6vw, 52px); line-height: 1.08; letter-spacing: -.04em; }
.closing p { max-width: 700px; margin-top: 12px; font-size: 13px; }
.closing a { flex: 0 0 auto; min-height: 62px; padding: 0 23px; display: inline-flex; align-items: center; gap: 24px; color: var(--paper); border-radius: 14px; background: var(--black); font-size: 13px; font-weight: 900; }

.site-footer { color: var(--paper); background: var(--black); }
.footer-grid { padding: 70px 0; display: grid; grid-template-columns: 1.5fr .7fr .7fr; gap: 70px; }
.footer-brand img { width: 170px; }
.footer-brand p { max-width: 400px; margin-top: 24px; color: #858b7e; font-size: 12px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links strong { margin-bottom: 8px; color: var(--acid); font-size: 11px; letter-spacing: .12em; }
.footer-links a { color: #9da294; font-size: 12px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); }
.footer-bottom > div { min-height: 62px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #64695f; font-size: 10px; }
.mobile-sticky { display: none; }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s cubic-bezier(.22,1,.36,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1080px) {
  .desktop-nav { gap: 20px; }
  .hero-shell { grid-template-columns: 1fr 1fr; gap: 25px; }
  .hero h1 { font-size: clamp(60px, 8vw, 90px); }
  .station-layout { grid-template-columns: 1fr 1fr; }
  .permission-layout { gap: 45px; }
  .update-grid { grid-template-columns: 1.15fr .85fr; }
  .update-card:last-child { grid-column: 2; }
  .update-main { grid-row: 1 / span 2; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .top-strip-inner p { display: none; }
  .desktop-nav, .header-download { display: none; }
  .menu-button { width: 46px; height: 46px; display: grid; place-content: center; gap: 5px; border: 0; border-radius: 12px; background: var(--acid); cursor: pointer; }
  .menu-button span { width: 21px; height: 2px; background: var(--black); transition: .25s ease; }
  .menu-button.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-button.active span:nth-child(2) { opacity: 0; }
  .menu-button.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .mobile-menu { position: fixed; top: 0; left: 0; z-index: 90; width: 100%; height: 100vh; padding: 145px 28px 40px; display: flex; flex-direction: column; gap: 0; color: var(--paper); background: rgba(17,19,15,.98); opacity: 0; visibility: hidden; transform: translateY(-15px); transition: .28s ease; }
  .mobile-menu.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .mobile-menu > a { padding: 17px 0; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 18px; font-weight: 800; }
  .mobile-menu-cta { margin-top: 25px; padding: 18px 20px !important; color: var(--black); border: 0 !important; border-radius: 12px; background: var(--acid); text-align: center; }
  .hero { min-height: auto; padding-top: 170px; }
  .hero-shell { grid-template-columns: 1fr; }
  .hero-copy { max-width: 720px; }
  .hero-visual { max-width: 680px; margin: 0 auto; }
  .intent-rail { overflow-x: auto; justify-content: flex-start; white-space: nowrap; scrollbar-width: none; }
  .intent-rail::-webkit-scrollbar { display: none; }
  .split-heading { grid-template-columns: 1fr; gap: 25px; }
  .check-grid { grid-template-columns: 1fr; }
  .check-card { min-height: 310px; }
  .station-layout { grid-template-columns: 1fr; }
  .station-copy { padding-right: 0; }
  .station-panel { min-height: auto; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .step-card:first-child { border-radius: 24px 0 0 0; }
  .step-card:nth-child(2) { border-radius: 0 24px 0 0; }
  .step-card:nth-child(3) { border-radius: 0 0 0 24px; }
  .step-card:last-child { border-radius: 0 0 24px 0; }
  .permission-layout { grid-template-columns: 1fr; }
  .permission-title, .faq-side { position: static; }
  .issue-row { grid-template-columns: .75fr 1fr 1.1fr; gap: 18px; }
  .quick-diagnosis { grid-template-columns: 1fr; }
  .update-grid { grid-template-columns: 1fr 1fr; }
  .update-main { grid-column: 1 / -1; grid-row: auto; }
  .update-card:last-child { grid-column: auto; }
  .update-card { min-height: 330px; }
  .update-card h3 { margin-top: 75px; }
  .faq-shell { grid-template-columns: 1fr; gap: 50px; }
  .related-head { align-items: start; flex-direction: column; }
  .related-head h2 { text-align: left; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; gap: 35px; }
}

@media (max-width: 620px) {
  .content-shell, .hero-shell { width: min(calc(100% - 30px), var(--shell)); }
  .section { padding: 88px 0; }
  .top-strip-inner { width: calc(100% - 30px); }
  .top-strip-inner > span { font-size: 9px; }
  .top-strip-inner a { font-size: 9px; }
  .site-header { padding-top: 12px; }
  .header-shell { width: calc(100% - 22px); min-height: 62px; padding-left: 17px; border-radius: 15px; }
  .brand img { width: 128px; }
  .menu-button { width: 42px; height: 42px; }
  .hero { padding: 145px 0 55px; }
  .breadcrumb { margin-bottom: 24px; }
  .hero-kicker { font-size: 9px; }
  .hero h1 { font-size: clamp(52px, 16vw, 76px); }
  .hero h1 span { padding-inline: 9px 13px; }
  .hero-description { margin-top: 25px; font-size: 15px; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 18px; }
  .primary-button { justify-content: space-between; }
  .text-button { align-self: flex-start; }
  .hero-facts { margin-top: 40px; grid-template-columns: 1fr; }
  .hero-facts div { padding: 12px 0; border-right: 0; border-bottom: 1px solid rgba(17,19,15,.17); }
  .hero-facts div:not(:first-child) { padding-left: 0; }
  .hero-facts div:last-child { border-bottom: 0; }
  .hero-visual { margin-top: 12px; }
  .visual-number { top: -30px; right: 0; font-size: 130px; }
  .device-check-card { right: 0; bottom: 8px; min-width: 205px; padding: 13px 15px; }
  .intent-rail { width: calc(100% - 30px); min-height: 55px; margin-top: 20px; padding: 0 17px; font-size: 9px; }
  .section-heading h2, .permission-title h2, .faq-side h2 { font-size: 45px; }
  .check-grid { margin-top: 42px; }
  .check-card { min-height: 335px; padding: 28px; }
  .check-card a, .card-note { left: 28px; bottom: 28px; }
  .station-copy h2 { font-size: 48px; }
  .download-conditions p { align-items: start; flex-direction: column; gap: 2px; }
  .download-cta { min-height: 78px; padding-inline: 20px; }
  .download-cta > span { font-size: 16px; }
  .station-panel { border-radius: 22px; }
  .panel-body { padding: 34px 24px 27px; }
  .scan-circle { width: 210px; height: 210px; }
  .scan-inner { width: 135px; height: 135px; }
  .install-route { display: none; }
  .steps-grid { grid-template-columns: 1fr; margin-top: 0; }
  .step-card, .step-card:first-child, .step-card:nth-child(2), .step-card:nth-child(3), .step-card:last-child { min-height: auto; border-radius: 0; }
  .step-card:first-child { border-radius: 20px 20px 0 0; }
  .step-card:last-child { border-radius: 0 0 20px 20px; }
  .permission-flow { padding-inline: 24px; }
  .permission-row { grid-template-columns: 45px 1fr; gap: 13px; }
  .permission-row strong { font-size: 17px; }
  .issue-table { border-radius: 18px; }
  .issue-head { display: none; }
  .issue-row { padding: 23px; grid-template-columns: 1fr; gap: 7px; }
  .issue-row strong { font-size: 17px; }
  .issue-row p:last-child { margin-top: 7px; padding-top: 10px; border-top: 1px dashed var(--line); }
  .update-grid { grid-template-columns: 1fr; }
  .update-card { min-height: 310px; }
  .update-main { min-height: auto; }
  .update-main h2 { font-size: 43px; }
  .faq-item button { min-height: 84px; }
  .faq-item button span { font-size: 16px; }
  .faq-answer p { padding-right: 0; }
  .related-grid { grid-template-columns: 1fr; }
  .related-card { min-height: 200px; }
  .related-card strong { margin-top: 38px; }
  .closing { padding-bottom: 70px; }
  .closing-inner { padding: 36px 28px; align-items: stretch; flex-direction: column; }
  .closing h2 { font-size: 38px; }
  .closing a { justify-content: space-between; }
  .footer-grid { grid-template-columns: 1fr; padding: 55px 0 100px; gap: 35px; }
  .footer-bottom > div { padding: 18px 0 95px; align-items: flex-start; flex-direction: column; }
  .mobile-sticky { position: fixed; right: 12px; bottom: 12px; left: 12px; z-index: 200; min-height: 64px; padding: 0 19px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--black); border: 1px solid rgba(17,19,15,.15); border-radius: 17px; background: var(--acid); box-shadow: 0 18px 48px rgba(17,19,15,.28); }
  .mobile-sticky > span { display: flex; flex-direction: column; font-size: 15px; font-weight: 950; line-height: 1.2; }
  .mobile-sticky small { font-size: 8px; letter-spacing: .14em; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}