/* =========================================================
   HHPoker Download Center
   Local, dependency-free responsive stylesheet
   ========================================================= */

:root {
  --navy: #07181d;
  --navy-2: #0a2228;
  --deep: #0d2a31;
  --surface: #10343c;
  --surface-2: #15414a;
  --teal: #12b596;
  --teal-2: #30d1b4;
  --teal-soft: #dff8f2;
  --mint: #eefaf7;
  --ink: #17272d;
  --muted: #5d7078;
  --paper: #f4f8f7;
  --white: #ffffff;
  --line: #dce7e6;
  --line-dark: rgba(255,255,255,.13);
  --shadow-lg: 0 28px 80px rgba(4, 29, 34, .18);
  --shadow-md: 0 18px 44px rgba(4, 29, 34, .12);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1200px;
  --header-h: 76px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 22px);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.78;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  color: inherit;
}

p,
h1,
h2,
h3,
figure,
ol,
ul,
dl,
dd {
  margin-top: 0;
}

p:last-child,
figure:last-child {
  margin-bottom: 0;
}

svg {
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.container {
  width: min(calc(100% - 44px), var(--container));
  margin-inline: auto;
}

.section {
  padding: 104px 0;
}

.skip-link {
  position: fixed;
  z-index: 9999;
  left: 18px;
  top: 14px;
  padding: 10px 16px;
  border-radius: 10px;
  color: #04201b;
  background: var(--teal-2);
  transform: translateY(-180%);
  transition: transform .2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--teal-2);
  outline-offset: 4px;
}

/* Header */
.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  height: var(--header-h);
  color: #eaf4f3;
  background: rgba(7, 24, 29, .92);
  border-bottom: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(18px);
  transition: box-shadow .2s ease, background-color .2s ease;
}

.site-header.is-scrolled {
  background: rgba(7, 24, 29, .97);
  box-shadow: 0 14px 38px rgba(0,0,0,.14);
}

.header-shell {
  width: min(calc(100% - 44px), 1320px);
  height: 100%;
  margin-inline: auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 26px;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 146px;
}

.brand img,
.footer-brand img {
  width: auto;
  height: 40px;
  max-width: 178px;
  object-fit: contain;
}

.desktop-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(18px, 2.3vw, 34px);
}

.desktop-nav a {
  position: relative;
  color: #c9d8d9;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  transition: color .2s ease;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -10px;
  height: 2px;
  background: var(--teal-2);
  transition: right .2s ease;
}

.desktop-nav a:hover {
  color: #fff;
}

.desktop-nav a:hover::after {
  right: 0;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 19px;
  border: 1px solid rgba(48, 209, 180, .5);
  border-radius: 12px;
  color: #061d1a;
  background: var(--teal-2);
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(18, 181, 150, .16);
  transition: transform .2s ease, background-color .2s ease;
}

.header-cta:hover {
  transform: translateY(-2px);
  background: #5ee1c8;
}

.menu-toggle,
.mobile-nav {
  display: none;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  color: #eef8f7;
  background:
    linear-gradient(135deg, #07181d 0%, #0a2228 50%, #0d3036 100%);
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  opacity: .22;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 85%);
}

.hero-glow {
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  filter: blur(15px);
  pointer-events: none;
}

.hero-glow-a {
  width: 560px;
  height: 560px;
  right: -120px;
  top: -140px;
  background: radial-gradient(circle, rgba(18,181,150,.24), rgba(18,181,150,0) 69%);
}

.hero-glow-b {
  width: 420px;
  height: 420px;
  left: 28%;
  bottom: -260px;
  background: radial-gradient(circle, rgba(57,130,146,.18), rgba(57,130,146,0) 68%);
}

.hero-grid {
  min-height: 640px;
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
  gap: 60px;
  align-items: center;
  padding-top: 58px;
  padding-bottom: 62px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 570px;
}

.eyebrow,
.section-kicker {
  margin-bottom: 18px;
  color: #178e7a;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .16em;
  line-height: 1.3;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #79e7d2;
}

.eyebrow span {
  width: 34px;
  height: 1px;
  background: #79e7d2;
}

.hero h1 {
  margin-bottom: 24px;
  max-width: 620px;
  color: #fff;
  font-size: clamp(44px, 5vw, 68px);
  font-weight: 800;
  letter-spacing: -.04em;
  line-height: 1.04;
}

.hero h1 strong {
  color: var(--teal-2);
  font-weight: 800;
}

.hero-lead {
  max-width: 560px;
  margin-bottom: 31px;
  color: #c8d7d8;
  font-size: 18px;
  line-height: 1.78;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-bottom: 30px;
}

.btn {
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 800;
  transition: transform .2s ease, background-color .2s ease, border-color .2s ease;
}

.btn svg,
.text-arrow svg {
  width: 19px;
  height: 19px;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #04201b;
  background: var(--teal-2);
  box-shadow: 0 14px 32px rgba(18,181,150,.20);
}

.btn-primary:hover {
  background: #59e3c9;
}

.btn-ghost {
  color: #e7f3f2;
  border-color: rgba(255,255,255,.20);
  background: rgba(255,255,255,.04);
}

.btn-ghost:hover {
  border-color: rgba(255,255,255,.36);
  background: rgba(255,255,255,.08);
}

.platform-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.platform-chip {
  min-height: 36px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #b9ccce;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 10px;
  background: rgba(255,255,255,.035);
  font-size: 12px;
  font-weight: 700;
}

.platform-chip svg {
  width: 17px;
  height: 17px;
  stroke-width: 1.6;
}

.hero-stage {
  position: relative;
  min-height: 490px;
  display: grid;
  place-items: center;
}

.stage-ring {
  position: absolute;
  border: 1px solid rgba(81, 223, 196, .16);
  border-radius: 50%;
}

.stage-ring-one {
  width: 450px;
  height: 450px;
}

.stage-ring-two {
  width: 340px;
  height: 340px;
}

.hero-device {
  position: relative;
  z-index: 2;
  width: min(100%, 590px);
  min-height: 350px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 25px;
  background: linear-gradient(145deg, rgba(255,255,255,.09), rgba(255,255,255,.035));
  box-shadow: 0 38px 80px rgba(0,0,0,.28);
  backdrop-filter: blur(14px);
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
}

.device-topline {
  height: 50px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  gap: 9px;
  color: #b9cdce;
  border-bottom: 1px solid rgba(255,255,255,.08);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .03em;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal-2);
  box-shadow: 0 0 0 5px rgba(48,209,180,.11);
}

.device-ready {
  margin-left: auto;
  padding: 3px 8px;
  border-radius: 20px;
  color: #68e3cc;
  background: rgba(48,209,180,.09);
  font-size: 10px;
  letter-spacing: .1em;
}

.device-image {
  min-height: 310px;
  padding: 27px;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 75% 35%, rgba(48,209,180,.12), transparent 38%),
    linear-gradient(180deg, rgba(255,255,255,.025), transparent);
}

.device-image img {
  width: 100%;
  max-height: 290px;
  object-fit: contain;
  filter: drop-shadow(0 24px 28px rgba(0,0,0,.24));
}

.floating-note {
  position: absolute;
  z-index: 4;
  min-width: 164px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 11px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 15px;
  background: rgba(8, 31, 36, .88);
  box-shadow: 0 18px 38px rgba(0,0,0,.2);
  backdrop-filter: blur(12px);
}

.note-a {
  left: -8px;
  top: 82px;
}

.note-b {
  right: -4px;
  bottom: 72px;
}

.note-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: #04201b;
  border-radius: 10px;
  background: var(--teal-2);
  font-size: 11px;
  font-weight: 900;
}

.floating-note small,
.floating-note strong {
  display: block;
}

.floating-note small {
  margin-bottom: 1px;
  color: #8ba3a6;
  font-size: 10px;
}

.floating-note strong {
  color: #f4fbfa;
  font-size: 13px;
}

.hero-bottom {
  border-top: 1px solid rgba(255,255,255,.07);
  background: rgba(0,0,0,.10);
}

.trust-line {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  color: #9db2b5;
  font-size: 12px;
  font-weight: 700;
}

.trust-line p {
  margin: 0;
}

.trust-line > span {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--teal-2);
}

/* Headings */
.section-heading {
  max-width: 740px;
  margin-bottom: 46px;
}

.section-heading-wide {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 520px);
  align-items: end;
  gap: 54px;
}

.section-heading h2,
.experience-intro h2,
.interface-head h2,
.first-copy h2,
.faq-intro h2,
.dock-copy h2 {
  margin-bottom: 18px;
  color: var(--ink);
  font-size: clamp(32px, 4vw, 50px);
  font-weight: 800;
  letter-spacing: -.035em;
  line-height: 1.16;
}

.section-heading p:not(.section-kicker),
.experience-intro > p:last-child,
.interface-head > p,
.first-lead,
.faq-intro > p {
  color: var(--muted);
  line-height: 1.86;
}

.section-heading-wide > p {
  margin-bottom: 4px;
}

/* Device selector */
.device-section {
  background: #f4f8f7;
}

.device-selector {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(320px, .85fr);
  gap: 18px;
}

.device-main {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(250px, .8fr);
  color: #eaf5f3;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #0b252b, #123b43);
}

.device-main::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  right: -100px;
  bottom: -110px;
  border-radius: 50%;
  background: rgba(48,209,180,.08);
}

.device-main-copy {
  position: relative;
  z-index: 2;
  padding: 42px 18px 38px 42px;
}

.device-index {
  display: inline-block;
  margin-bottom: 14px;
  color: #63dbc5;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.device-main h3,
.device-small h3 {
  margin-bottom: 13px;
  font-weight: 800;
  letter-spacing: -.025em;
  line-height: 1.2;
}

.device-main h3 {
  color: #fff;
  font-size: 31px;
}

.device-main p {
  max-width: 490px;
  margin-bottom: 21px;
  color: #bfd0d1;
}

.plain-checks {
  margin: 0 0 27px;
  padding: 0;
  list-style: none;
}

.plain-checks li {
  position: relative;
  margin: 8px 0;
  padding-left: 20px;
  color: #d3e0e0;
  font-size: 13px;
}

.plain-checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal-2);
}

.text-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #66e1ca;
  font-size: 14px;
  font-weight: 900;
}

.text-arrow svg {
  transition: transform .2s ease;
}

.text-arrow:hover svg {
  transform: translateX(4px);
}

.device-main-visual {
  position: relative;
  z-index: 1;
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 36px 26px 28px 0;
}

.device-main-visual img {
  width: 100%;
  max-height: 310px;
  object-fit: contain;
  filter: drop-shadow(0 28px 36px rgba(0,0,0,.28));
}

.device-side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 18px;
}

.device-small {
  position: relative;
  min-height: 206px;
  overflow: hidden;
  padding: 29px 110px 27px 29px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
}

.device-small-alt {
  background: #eaf7f4;
}

.device-small h3 {
  color: var(--ink);
  font-size: 24px;
}

.device-small p {
  margin-bottom: 15px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.device-small a {
  color: #087f6b;
  font-size: 13px;
  font-weight: 900;
}

.device-small a span {
  display: inline-block;
  margin-left: 4px;
  transition: transform .2s ease;
}

.device-small a:hover span {
  transform: translateX(4px);
}

.device-symbol {
  position: absolute;
  right: 18px;
  top: 50%;
  width: 80px;
  height: 80px;
  margin-top: -40px;
  display: grid;
  place-items: center;
  color: #0d5f53;
  border: 1px solid rgba(18,181,150,.24);
  border-radius: 24px;
  background: rgba(18,181,150,.07);
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -.03em;
  transform: rotate(-7deg);
}

.quick-check {
  margin-top: 20px;
  min-height: 112px;
  padding: 22px 28px;
  display: grid;
  grid-template-columns: 230px 1fr;
  align-items: center;
  gap: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
}

.quick-title span,
.quick-title strong {
  display: block;
}

.quick-title span {
  margin-bottom: 4px;
  color: #178e7a;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .13em;
}

.quick-title strong {
  color: var(--ink);
  font-size: 18px;
}

.quick-check ol {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
}

.quick-check li {
  position: relative;
  min-height: 54px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 22px;
  border-left: 1px solid var(--line);
}

.quick-check li b {
  color: #119a83;
  font-size: 12px;
}

.quick-check li span {
  color: #43575e;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.48;
}

/* Experience */
.experience {
  background: #fff;
}

.experience-intro {
  max-width: 780px;
  margin-bottom: 46px;
}

.experience-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(310px, .72fr);
  gap: 44px;
  align-items: stretch;
}

.experience-main {
  position: relative;
  min-height: 490px;
  overflow: hidden;
  margin: 0;
  border-radius: 28px;
  background: #0a2026;
}

.experience-main img {
  width: 100%;
  height: 100%;
  min-height: 490px;
  object-fit: cover;
  object-position: center;
}

.experience-main::after {
  content: "";
  position: absolute;
  inset: 42% 0 0;
  background: linear-gradient(to bottom, transparent, rgba(2,14,17,.88));
}

.experience-main figcaption {
  position: absolute;
  z-index: 2;
  left: 31px;
  right: 31px;
  bottom: 28px;
  color: #fff;
}

.experience-main figcaption span {
  display: block;
  margin-bottom: 5px;
  color: #66e0ca;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .14em;
}

.experience-main figcaption strong {
  display: block;
  margin-bottom: 6px;
  font-size: 25px;
}

.experience-main figcaption p {
  max-width: 620px;
  color: #c7d6d7;
  font-size: 14px;
}

.experience-notes {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.experience-notes article {
  padding: 3px 0 24px;
  border-bottom: 1px solid var(--line);
}

.experience-notes article + article {
  padding-top: 25px;
}

.experience-notes article:last-child {
  border-bottom: 0;
  padding-bottom: 3px;
}

.mini-no {
  display: inline-block;
  margin-bottom: 13px;
  color: #15927e;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .12em;
}

.experience-notes h3 {
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.35;
}

.experience-notes p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.78;
}

.community-strip {
  margin-top: 66px;
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
  overflow: hidden;
  border: 1px solid #d6e6e3;
  border-radius: 28px;
  background: #eef8f6;
}

.community-copy {
  padding: 48px;
  align-self: center;
}

.community-copy > span {
  display: block;
  margin-bottom: 13px;
  color: #0e8e77;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .13em;
}

.community-copy h3 {
  margin-bottom: 15px;
  color: var(--ink);
  font-size: 29px;
  letter-spacing: -.025em;
  line-height: 1.3;
}

.community-copy p {
  margin-bottom: 24px;
  color: var(--muted);
}

.dark-arrow {
  color: #087e69;
}

.community-image {
  min-height: 330px;
  display: grid;
  place-items: center;
  padding: 34px;
  background:
    radial-gradient(circle at 55% 45%, rgba(18,181,150,.18), transparent 42%),
    #0a252b;
}

.community-image img {
  width: 100%;
  max-height: 280px;
  object-fit: contain;
  filter: drop-shadow(0 18px 28px rgba(0,0,0,.28));
}

/* Install */
.install {
  background: var(--paper);
}

.journey {
  position: relative;
  margin: 6px 0 66px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  list-style: none;
}

.journey li {
  position: relative;
  padding: 0 27px 0 0;
}

.journey-number {
  position: relative;
  z-index: 2;
  width: 43px;
  height: 43px;
  margin-bottom: 22px;
  display: grid;
  place-items: center;
  color: #064b40;
  border: 1px solid #8fd8cb;
  border-radius: 50%;
  background: #e8f8f4;
  font-size: 11px;
  font-weight: 900;
}

.journey-line {
  position: absolute;
  top: 21px;
  left: 43px;
  right: 0;
  height: 1px;
  background: #cbdcda;
}

.journey li:last-child .journey-line {
  display: none;
}

.journey h3 {
  margin-bottom: 7px;
  color: var(--ink);
  font-size: 18px;
}

.journey p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.72;
}

.install-detail {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  min-height: 440px;
  overflow: hidden;
  border-radius: 30px;
  background: #0a252b;
}

.install-detail-image {
  min-height: 440px;
  padding: 42px;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 50%, rgba(48,209,180,.12), transparent 48%),
    #091f25;
}

.install-detail-image img {
  max-width: 100%;
  max-height: 320px;
  object-fit: contain;
  filter: drop-shadow(0 22px 32px rgba(0,0,0,.3));
}

.install-detail-copy {
  padding: 54px 56px;
  color: #e7f2f1;
}

.install-detail-copy .section-kicker {
  color: #5fe0c8;
}

.install-detail-copy h3 {
  margin-bottom: 27px;
  color: #fff;
  font-size: 34px;
  letter-spacing: -.025em;
  line-height: 1.25;
}

.install-detail-copy dl {
  margin: 0;
}

.install-detail-copy dl > div {
  padding: 19px 0;
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  border-top: 1px solid var(--line-dark);
}

.install-detail-copy dt {
  color: #7be6d1;
  font-size: 13px;
  font-weight: 900;
}

.install-detail-copy dd {
  color: #bed0d1;
  font-size: 14px;
  line-height: 1.75;
}

/* Interface showcase */
.interface-showcase {
  padding: 110px 0 104px;
  overflow: hidden;
  color: #e9f5f3;
  background: #07191e;
}

.interface-container {
  position: relative;
}

.interface-container::before {
  content: "";
  position: absolute;
  z-index: 0;
  width: 700px;
  height: 700px;
  left: 50%;
  top: 34%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(48,209,180,.11), transparent 66%);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.interface-head,
.interface-frame,
.interface-points {
  position: relative;
  z-index: 1;
}

.interface-head {
  margin-bottom: 42px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 480px);
  align-items: end;
  gap: 60px;
}

.section-kicker-light {
  color: #62dfc8;
}

.interface-head h2,
.dock-copy h2 {
  color: #fff;
}

.interface-head > p {
  margin-bottom: 2px;
  color: #abc0c2;
}

.interface-frame {
  min-height: 370px;
  padding: 18px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 30px;
  background: rgba(255,255,255,.035);
  box-shadow: 0 35px 80px rgba(0,0,0,.22);
}

.interface-frame img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  border-radius: 18px;
}

.interface-points {
  margin-top: 38px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.interface-points article {
  padding: 5px 38px 4px 0;
  border-right: 1px solid var(--line-dark);
}

.interface-points article + article {
  padding-left: 38px;
}

.interface-points article:last-child {
  border-right: 0;
}

.interface-points span {
  display: block;
  margin-bottom: 12px;
  color: #51dac1;
  font-size: 11px;
  font-weight: 900;
}

.interface-points h3 {
  margin-bottom: 7px;
  color: #f1f7f6;
  font-size: 20px;
}

.interface-points p {
  color: #9eb4b6;
  font-size: 14px;
}

/* Comparison */
.compare {
  background: #fff;
}

.comparison {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 20px;
  -webkit-overflow-scrolling: touch;
}

.comparison table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
  background: #fff;
}

.comparison th,
.comparison td {
  padding: 21px 22px;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--line);
}

.comparison thead th {
  color: #496067;
  background: #eef6f4;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .03em;
}

.comparison tbody tr:last-child th,
.comparison tbody tr:last-child td {
  border-bottom: 0;
}

.comparison tbody th {
  width: 170px;
}

.comparison tbody th strong,
.comparison tbody th small {
  display: block;
}

.comparison tbody th strong {
  color: var(--ink);
  font-size: 16px;
}

.comparison tbody th small {
  margin-top: 2px;
  color: #789097;
  font-size: 11px;
  font-weight: 600;
}

.comparison tbody td {
  color: #53676e;
  font-size: 13px;
}

.table-note {
  margin: 13px 4px 0;
  color: #70848a;
  font-size: 12px;
}

/* First time */
.first-time {
  background: #edf6f4;
}

.first-grid {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  gap: 76px;
  align-items: center;
}

.first-copy h2 {
  max-width: 570px;
}

.first-lead {
  max-width: 620px;
  margin-bottom: 34px;
}

.first-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.first-steps li {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding: 15px 0;
}

.first-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 19px;
  top: 51px;
  bottom: -3px;
  width: 1px;
  background: #b8d5cf;
}

.first-steps li > span {
  position: relative;
  z-index: 1;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: #064a40;
  border: 1px solid #9ccfc5;
  border-radius: 50%;
  background: #e9f7f3;
  font-size: 12px;
  font-weight: 900;
}

.first-steps strong {
  display: block;
  margin-bottom: 2px;
  color: var(--ink);
  font-size: 16px;
}

.first-steps p {
  color: var(--muted);
  font-size: 13px;
}

.first-visual {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
}

.first-visual::before {
  content: "";
  position: absolute;
  width: 390px;
  height: 390px;
  border-radius: 50%;
  border: 1px solid rgba(18,181,150,.22);
}

.first-visual::after {
  content: "";
  position: absolute;
  width: 290px;
  height: 290px;
  border-radius: 50%;
  background: rgba(18,181,150,.07);
}

.first-card {
  position: relative;
  z-index: 2;
  width: min(100%, 520px);
  min-height: 330px;
  padding: 30px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 28px;
  background: #0a252b;
  box-shadow: var(--shadow-lg);
  transform: rotate(1.8deg);
}

.first-card img {
  max-height: 300px;
  object-fit: contain;
}

.first-caption {
  position: absolute;
  z-index: 3;
  left: 4px;
  bottom: 20px;
  width: 250px;
  padding: 18px 20px;
  border: 1px solid #cfe3de;
  border-radius: 17px;
  background: rgba(255,255,255,.94);
  box-shadow: 0 18px 38px rgba(8,49,45,.12);
  backdrop-filter: blur(10px);
}

.first-caption span {
  display: block;
  margin-bottom: 6px;
  color: #0c8c75;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .12em;
}

.first-caption p {
  color: #4e6268;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.65;
}

/* FAQ */
.faq {
  background: #fff;
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(260px, .68fr) minmax(0, 1.32fr);
  gap: 80px;
  align-items: start;
}

.faq-intro {
  position: sticky;
  top: calc(var(--header-h) + 32px);
}

.faq-intro > p {
  max-width: 410px;
}

.faq-visual {
  margin-top: 30px;
  min-height: 180px;
  padding: 22px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 20px;
  background: #0a252b;
}

.faq-visual img {
  width: 100%;
  max-height: 190px;
  object-fit: contain;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item h3 {
  margin: 0;
}

.faq-item button {
  width: 100%;
  min-height: 80px;
  padding: 20px 0;
  display: grid;
  grid-template-columns: 1fr 30px;
  align-items: center;
  gap: 20px;
  text-align: left;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.faq-item button span {
  color: var(--ink);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.55;
}

.faq-item button i {
  position: relative;
  width: 28px;
  height: 28px;
  border: 1px solid #bcd5d0;
  border-radius: 50%;
}

.faq-item button i::before,
.faq-item button i::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 1px;
  background: #0d8e77;
  transform: translate(-50%, -50%);
  transition: transform .2s ease;
}

.faq-item button i::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item button[aria-expanded="true"] i::after {
  transform: translate(-50%, -50%) rotate(0);
}

.faq-answer {
  padding: 0 52px 24px 0;
}

.faq-answer p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

/* Download dock */
.download-dock {
  padding: 78px 0;
  color: #e9f5f3;
  background:
    radial-gradient(circle at 75% 45%, rgba(48,209,180,.12), transparent 38%),
    #092128;
}

.dock-grid {
  display: grid;
  grid-template-columns: minmax(280px, .65fr) minmax(0, 1.35fr);
  gap: 64px;
  align-items: center;
}

.dock-copy h2 {
  margin-bottom: 12px;
}

.dock-copy p:last-child {
  color: #acc1c3;
  max-width: 430px;
}

.dock-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.dock-actions a {
  min-height: 128px;
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 18px;
  background: rgba(255,255,255,.035);
  transition: transform .2s ease, background-color .2s ease, border-color .2s ease;
}

.dock-actions a:hover {
  transform: translateY(-4px);
  border-color: rgba(48,209,180,.42);
  background: rgba(48,209,180,.075);
}

.dock-actions small {
  margin-bottom: 4px;
  color: #65e0c9;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .08em;
}

.dock-actions strong {
  color: #fff;
  font-size: 14px;
  line-height: 1.45;
}

.dock-actions span {
  margin-top: 8px;
  color: #65e0c9;
}

/* Footer */
.site-footer {
  color: #a9bcbf;
  background: #06171b;
}

.footer-grid {
  padding: 58px 0 46px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 70px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand p {
  max-width: 360px;
  margin: 16px 0 0;
  color: #8fa5a8;
  font-size: 13px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 150px);
  gap: 50px;
}

.footer-links strong {
  display: block;
  margin-bottom: 13px;
  color: #e8f1f0;
  font-size: 13px;
}

.footer-links a {
  display: block;
  width: fit-content;
  margin: 7px 0;
  color: #94aaad;
  font-size: 12px;
  transition: color .2s ease;
}

.footer-links a:hover {
  color: #5de0c7;
}

.footer-bottom {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: #70878b;
  font-size: 11px;
}

.footer-bottom p {
  margin: 0;
}

/* Responsive */
@media (max-width: 1080px) {
  .desktop-nav {
    display: none;
  }

  .header-shell {
    grid-template-columns: auto 1fr auto;
  }

  .header-cta {
    justify-self: end;
  }

  .menu-toggle {
    width: 44px;
    height: 44px;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border: 1px solid rgba(255,255,255,.13);
    border-radius: 11px;
    background: transparent;
    cursor: pointer;
  }

  .menu-toggle span {
    width: 19px;
    height: 1px;
    background: #dceae8;
    transition: transform .2s ease, opacity .2s ease;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .mobile-nav {
    position: fixed;
    inset: var(--header-h) 0 auto;
    padding: 18px 22px 24px;
    display: grid;
    gap: 3px;
    border-top: 1px solid rgba(255,255,255,.07);
    background: #07181d;
    box-shadow: 0 20px 36px rgba(0,0,0,.22);
  }

  .mobile-nav[hidden] {
    display: none;
  }

  .mobile-nav a {
    padding: 12px 2px;
    color: #d1dedd;
    font-size: 14px;
    font-weight: 700;
  }

  .mobile-nav-cta {
    margin-top: 8px;
    padding: 12px 15px !important;
    text-align: center;
    color: #04201b !important;
    border-radius: 10px;
    background: var(--teal-2);
  }

  .hero-grid {
    min-height: 610px;
    grid-template-columns: minmax(0, 1fr) minmax(420px, 1fr);
    gap: 28px;
  }

  .hero-stage {
    min-height: 430px;
  }

  .floating-note {
    display: none;
  }

  .stage-ring-one {
    width: 390px;
    height: 390px;
  }

  .stage-ring-two {
    width: 290px;
    height: 290px;
  }

  .device-selector {
    grid-template-columns: 1fr;
  }

  .device-side {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: none;
  }

  .quick-check {
    grid-template-columns: 190px 1fr;
  }

  .quick-check li {
    padding: 0 15px;
  }

  .experience-grid {
    gap: 28px;
  }

  .experience-main,
  .experience-main img {
    min-height: 430px;
  }

  .first-grid {
    gap: 42px;
  }

  .faq-layout {
    gap: 50px;
  }

  .dock-grid {
    gap: 36px;
  }
}

@media (max-width: 860px) {
  .section {
    padding: 82px 0;
  }

  .header-cta {
    display: none;
  }

  .hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 12px;
    padding-top: 70px;
    padding-bottom: 58px;
  }

  .hero-copy {
    max-width: 680px;
  }

  .hero-stage {
    min-height: 450px;
  }

  .hero-device {
    max-width: 620px;
  }

  .trust-line {
    gap: 16px;
    flex-wrap: wrap;
    padding: 17px 0;
  }

  .section-heading-wide,
  .interface-head {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .device-main {
    grid-template-columns: 1fr;
  }

  .device-main-copy {
    padding: 37px 36px 16px;
  }

  .device-main-visual {
    min-height: 250px;
    padding: 15px 36px 36px;
  }

  .device-main-visual img {
    max-height: 240px;
  }

  .quick-check {
    grid-template-columns: 1fr;
  }

  .quick-check ol {
    border-top: 1px solid var(--line);
  }

  .quick-check li:first-child {
    border-left: 0;
  }

  .experience-grid {
    grid-template-columns: 1fr;
  }

  .experience-notes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .experience-notes article,
  .experience-notes article + article,
  .experience-notes article:last-child {
    padding: 0;
    border-bottom: 0;
  }

  .community-strip {
    grid-template-columns: 1fr;
  }

  .community-image {
    min-height: 290px;
  }

  .journey {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .journey li {
    min-height: 118px;
    padding: 0 0 24px 70px;
  }

  .journey-number {
    position: absolute;
    left: 0;
    top: 0;
  }

  .journey-line {
    left: 21px;
    top: 43px;
    bottom: 0;
    width: 1px;
    height: auto;
  }

  .install-detail {
    grid-template-columns: 1fr;
  }

  .install-detail-image {
    min-height: 320px;
  }

  .interface-points {
    gap: 18px;
  }

  .interface-points article,
  .interface-points article + article {
    padding: 4px 18px 4px 0;
  }

  .first-grid {
    grid-template-columns: 1fr;
  }

  .first-visual {
    min-height: 450px;
  }

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .faq-intro {
    position: static;
  }

  .faq-visual {
    max-width: 520px;
  }

  .dock-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  :root {
    --header-h: 68px;
  }

  .container,
  .header-shell {
    width: min(calc(100% - 38px), var(--container));
  }

  .section {
    padding: 68px 0;
  }

  .brand img,
  .footer-brand img {
    height: 34px;
    max-width: 150px;
  }

  .hero-grid {
    padding-top: 55px;
    padding-bottom: 42px;
  }

  .hero h1 {
    margin-bottom: 20px;
    font-size: clamp(38px, 12vw, 52px);
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
  }

  .platform-row {
    gap: 7px;
  }

  .platform-chip {
    padding: 0 10px;
  }

  .hero-stage {
    min-height: 340px;
  }

  .stage-ring-one {
    width: 315px;
    height: 315px;
  }

  .stage-ring-two {
    width: 240px;
    height: 240px;
  }

  .hero-device {
    min-height: 280px;
    border-radius: 20px;
    transform: none;
  }

  .device-topline {
    height: 44px;
    padding: 0 13px;
  }

  .device-image {
    min-height: 238px;
    padding: 18px;
  }

  .device-image img {
    max-height: 220px;
  }

  .trust-line {
    justify-content: flex-start;
    gap: 8px 12px;
  }

  .trust-line > span {
    display: none;
  }

  .trust-line p {
    width: 100%;
    padding-left: 15px;
    position: relative;
  }

  .trust-line p::before {
    content: "";
    position: absolute;
    left: 0;
    top: .75em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--teal-2);
  }

  .section-heading,
  .experience-intro {
    margin-bottom: 33px;
  }

  .section-heading h2,
  .experience-intro h2,
  .interface-head h2,
  .first-copy h2,
  .faq-intro h2,
  .dock-copy h2 {
    font-size: 32px;
  }

  .device-main {
    min-height: auto;
    border-radius: 22px;
  }

  .device-main-copy {
    padding: 30px 24px 12px;
  }

  .device-main h3 {
    font-size: 27px;
  }

  .device-main-visual {
    min-height: 220px;
    padding: 14px 24px 28px;
  }

  .device-side {
    grid-template-columns: 1fr;
  }

  .device-small {
    min-height: 190px;
    padding: 25px 98px 24px 24px;
  }

  .device-symbol {
    width: 64px;
    height: 64px;
    margin-top: -32px;
    right: 16px;
    border-radius: 18px;
    font-size: 15px;
  }

  .quick-check {
    padding: 23px 20px;
  }

  .quick-check ol {
    grid-template-columns: 1fr 1fr;
  }

  .quick-check li {
    min-height: 66px;
    padding: 10px 12px;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .quick-check li:nth-child(odd) {
    border-right: 1px solid var(--line);
  }

  .quick-check li:nth-last-child(-n+2) {
    border-bottom: 0;
  }

  .experience-main,
  .experience-main img {
    min-height: 360px;
  }

  .experience-main img {
    object-position: center;
  }

  .experience-main figcaption {
    left: 21px;
    right: 21px;
    bottom: 20px;
  }

  .experience-notes {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .experience-notes article,
  .experience-notes article + article,
  .experience-notes article:last-child {
    padding: 20px 0;
    border-bottom: 1px solid var(--line);
  }

  .experience-notes article:last-child {
    border-bottom: 0;
  }

  .community-strip {
    margin-top: 38px;
    border-radius: 22px;
  }

  .community-copy {
    padding: 31px 24px;
  }

  .community-copy h3 {
    font-size: 25px;
  }

  .community-image {
    min-height: 230px;
    padding: 24px;
  }

  .install-detail {
    border-radius: 22px;
  }

  .install-detail-image {
    min-height: 250px;
    padding: 28px 22px;
  }

  .install-detail-image img {
    max-height: 230px;
  }

  .install-detail-copy {
    padding: 34px 24px;
  }

  .install-detail-copy h3 {
    font-size: 28px;
  }

  .install-detail-copy dl > div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .interface-showcase {
    padding: 72px 0;
  }

  .interface-frame {
    min-height: 240px;
    padding: 10px;
    border-radius: 22px;
  }

  .interface-frame img {
    border-radius: 14px;
  }

  .interface-points {
    grid-template-columns: 1fr;
    margin-top: 28px;
  }

  .interface-points article,
  .interface-points article + article {
    padding: 18px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .interface-points article:last-child {
    border-bottom: 0;
  }

  .comparison {
    border-radius: 15px;
  }

  .first-visual {
    min-height: 390px;
  }

  .first-card {
    min-height: 270px;
    padding: 20px;
    border-radius: 22px;
    transform: none;
  }

  .first-card img {
    max-height: 245px;
  }

  .first-visual::before {
    width: 300px;
    height: 300px;
  }

  .first-visual::after {
    width: 220px;
    height: 220px;
  }

  .first-caption {
    left: 0;
    right: 0;
    bottom: 0;
    width: auto;
  }

  .faq-item button {
    min-height: 72px;
    gap: 13px;
  }

  .faq-item button span {
    font-size: 15px;
  }

  .faq-answer {
    padding-right: 36px;
  }

  .download-dock {
    padding: 64px 0;
  }

  .dock-actions {
    grid-template-columns: 1fr;
  }

  .dock-actions a {
    min-height: 94px;
  }

  .footer-grid {
    padding: 46px 0 34px;
    gap: 38px;
  }

  .footer-links {
    grid-template-columns: 1fr 1fr;
    gap: 26px;
  }

  .footer-bottom {
    padding: 18px 0;
    min-height: 0;
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }
}

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