/* AA Poker 下载安装页
   沙金 / 孔雀蓝 / 紫色 / 炭黑
   设备传送带、安装工作流、进度检查与操作手册 Footer
*/

:root {
    --sand: #e8d9b6;
    --sand-2: #d7c395;
    --paper: #f8f2e6;
    --charcoal: #191a1c;
    --charcoal-2: #24262a;
    --teal: #077f79;
    --teal-2: #0aa49c;
    --purple: #6d4fd2;
    --purple-soft: #a897ef;
    --orange: #ef7d3a;
    --white: #ffffff;
    --ink: #201f20;
    --muted: #6d6963;
    --line: rgba(32, 31, 32, 0.15);
    --max: 1240px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    color: var(--ink);
    background: var(--sand);
    font-family: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
    -webkit-font-smoothing: antialiased;
}

body.menu-open {
    overflow: hidden;
}

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

button,
a {
    -webkit-tap-highlight-color: transparent;
}

button {
    font: inherit;
}

img {
    max-width: 100%;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: fixed;
    z-index: 999;
    top: -80px;
    left: 16px;
    padding: 12px 16px;
    border-radius: 999px;
    color: var(--white);
    background: var(--teal);
}

.skip-link:focus {
    top: 16px;
}

.site-header {
    position: sticky;
    z-index: 100;
    top: 0;
    border-bottom: 1px solid rgba(32,31,32,.11);
    background: rgba(232,217,182,.93);
    backdrop-filter: blur(18px);
}

.header-inner {
    width: min(calc(100% - 40px), var(--max));
    min-height: 78px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 34px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.brand-icon {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    overflow: hidden;
    border-radius: 14px 14px 4px 14px;
    color: var(--white);
    background: var(--charcoal);
    box-shadow: 5px 5px 0 var(--purple);
}

.brand-icon img {
    width: 30px;
    height: 30px;
    object-fit: contain;
}

.brand-copy {
    display: grid;
    gap: 2px;
}

.brand-copy strong {
    letter-spacing: .08em;
    font-size: 15px;
}

.brand-copy small {
    color: var(--muted);
    letter-spacing: .17em;
    font-size: 8px;
}

.desktop-nav {
    justify-self: center;
    display: flex;
    align-items: center;
    gap: 34px;
}

.desktop-nav a {
    position: relative;
    padding: 30px 0 26px;
    color: #625e57;
    font-size: 13px;
}

.desktop-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: 20px;
    height: 3px;
    background: var(--teal);
    transition: right .22s ease;
}

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

.header-cta {
    min-height: 46px;
    padding: 0 19px;
    display: inline-flex;
    align-items: center;
    gap: 16px;
    border-radius: 13px 13px 4px 13px;
    color: var(--white);
    background: var(--teal);
    font-size: 13px;
    font-weight: 800;
    box-shadow: 4px 4px 0 var(--charcoal);
}

.header-cta span {
    color: #b6fff7;
}

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

.hero {
    position: relative;
    min-height: 800px;
    overflow: hidden;
    background:
        radial-gradient(circle at 76% 23%, rgba(109,79,210,.18), transparent 27%),
        radial-gradient(circle at 92% 72%, rgba(7,127,121,.16), transparent 24%),
        linear-gradient(180deg, #f9f2e4 0%, var(--sand) 100%);
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    opacity: .16;
    background-image:
        linear-gradient(rgba(32,31,32,.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(32,31,32,.07) 1px, transparent 1px);
    background-size: 68px 68px;
    mask-image: linear-gradient(90deg, transparent, black 42%, black);
}

.hero-shell {
    position: relative;
    z-index: 2;
    width: min(calc(100% - 40px), var(--max));
    min-height: 710px;
    margin: 0 auto;
    padding: 80px 0 88px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(440px, .9fr);
    align-items: center;
    gap: 78px;
}

.breadcrumb {
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--muted);
    font-size: 11px;
}

.breadcrumb a:hover {
    color: var(--teal);
}

.eyebrow {
    margin: 0 0 21px;
    color: var(--teal);
    letter-spacing: .17em;
    font-size: 10px;
    font-weight: 900;
}

.hero h1 {
    margin: 0;
    display: grid;
    font-size: clamp(64px, 7vw, 108px);
    line-height: .84;
    letter-spacing: -.075em;
}

.hero h1 span {
    margin-top: 25px;
    color: var(--purple);
    font-size: .52em;
    letter-spacing: -.04em;
}

.hero-lead {
    max-width: 700px;
    margin: 36px 0 0;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.9;
}

.hero-actions {
    margin-top: 34px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.primary-action {
    min-height: 70px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 42px 1fr auto;
    align-items: center;
    gap: 14px;
    border-radius: 14px 14px 4px 14px;
    color: var(--white);
    background: var(--teal);
    box-shadow: 7px 7px 0 var(--charcoal);
    transition: transform .2s ease;
}

.primary-action:hover {
    transform: translate(-2px, -2px);
}

.action-icon {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255,255,255,.28);
    border-radius: 11px;
    color: #b6fff7;
    font-size: 17px;
    font-weight: 900;
}

.primary-action strong,
.primary-action small {
    display: block;
}

.primary-action strong {
    font-size: 13px;
}

.primary-action small {
    margin-top: 4px;
    color: rgba(255,255,255,.56);
    font-size: 9px;
}

.primary-action b {
    color: #b6fff7;
}

.secondary-action {
    min-height: 70px;
    padding: 0 18px;
    display: inline-flex;
    align-items: center;
    gap: 14px;
    border: 2px solid var(--line);
    border-radius: 14px 14px 4px 14px;
    background: rgba(255,255,255,.4);
    font-size: 12px;
    font-weight: 800;
}

.secondary-action span {
    color: var(--purple);
}

.hero-facts {
    margin: 48px 0 0;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 2px solid var(--line);
}

.hero-facts div {
    padding: 22px 18px 0 0;
}

.hero-facts div + div {
    padding-left: 18px;
    border-left: 1px solid var(--line);
}

.hero-facts dt {
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 9px;
}

.hero-facts dd {
    margin: 0;
    font-size: 13px;
    font-weight: 800;
}

.install-station {
    position: relative;
    overflow: visible;
    border: 2px solid var(--charcoal);
    border-radius: 17px;
    background: var(--charcoal-2);
    box-shadow: 14px 14px 0 var(--purple);
}

.station-head {
    min-height: 50px;
    padding: 0 17px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,.1);
    color: rgba(255,255,255,.35);
    letter-spacing: .13em;
    font-size: 8px;
}

.station-head > div {
    display: flex;
    gap: 6px;
}

.station-head i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: rgba(255,255,255,.18);
}

.station-head i:first-child {
    background: var(--orange);
}

.station-head i:nth-child(2) {
    background: #e9d150;
}

.station-head i:nth-child(3) {
    background: var(--teal-2);
}

.station-body {
    position: relative;
    min-height: 420px;
    overflow: hidden;
    background:
        radial-gradient(circle at center, rgba(109,79,210,.18), transparent 32%),
        var(--charcoal);
}

.station-body::before {
    content: "";
    position: absolute;
    inset: 0;
    opacity: .15;
    background-image:
        linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
    background-size: 38px 38px;
}

.devices-image {
    position: absolute;
    inset: 35px 40px 120px;
    background-image:
        url("../pic/hero/aapoker-download-devices.png"),
        linear-gradient(145deg, #2b2e33, #191a1c);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
}

.conveyor {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 34px;
    height: 68px;
    padding: 10px 0;
    overflow: hidden;
    background: rgba(7,127,121,.18);
    border-top: 1px solid rgba(255,255,255,.1);
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.belt {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-around;
    color: rgba(255,255,255,.46);
    letter-spacing: .14em;
    font-size: 8px;
}

.belt i {
    width: 40px;
    height: 1px;
    background: var(--purple-soft);
}

.station-card {
    position: absolute;
    z-index: 4;
    min-height: 82px;
    padding: 15px;
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 13px;
    align-items: center;
    border: 2px solid var(--charcoal);
    border-radius: 13px 13px 4px 13px;
    box-shadow: 7px 7px 0 rgba(0,0,0,.2);
}

.station-card-download {
    left: -22px;
    bottom: 30px;
    width: 235px;
    color: var(--charcoal);
    background: var(--orange);
    transform: rotate(-4deg);
}

.station-card-install {
    right: -10px;
    top: 28px;
    width: 235px;
    color: var(--white);
    background: var(--purple);
    transform: rotate(5deg);
}

.station-card > span {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border: 1px solid currentColor;
    border-radius: 9px;
    font-weight: 900;
}

.station-card strong,
.station-card small {
    display: block;
}

.station-card small {
    margin-top: 5px;
    opacity: .62;
    font-size: 9px;
}

.station-footer {
    min-height: 64px;
    padding: 0 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: rgba(255,255,255,.35);
    letter-spacing: .12em;
    font-size: 8px;
}

.station-footer strong {
    color: var(--teal-2);
    font-size: 8px;
}

.hero-labels {
    position: absolute;
    z-index: 4;
    left: 50%;
    bottom: 24px;
    width: min(calc(100% - 40px), var(--max));
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--muted);
    letter-spacing: .15em;
    font-size: 8px;
}

.hero-labels i {
    width: 38px;
    height: 2px;
    background: var(--teal);
}

.device-section,
.steps-section,
.progress-section,
.first-launch,
.trouble-section,
.content-section,
.faq-section {
    padding: 110px 0;
}

.device-heading,
.device-switcher,
.steps-heading,
.manual,
.progress-shell,
.launch-grid,
.trouble-heading,
.trouble-board,
.content-grid,
.faq-heading,
.faq-layout {
    width: min(calc(100% - 40px), var(--max));
    margin-left: auto;
    margin-right: auto;
}

.device-heading {
    max-width: 820px;
    margin-bottom: 52px;
}

.device-heading h2,
.steps-heading h2,
.progress-title h2,
.launch-copy h2,
.trouble-heading h2,
.content-main h2,
.faq-heading h2,
.final-copy h2 {
    margin: 0;
    font-size: clamp(40px, 5vw, 68px);
    line-height: 1.04;
    letter-spacing: -.055em;
}

.device-heading > p:last-child,
.steps-heading > p,
.progress-title > p,
.trouble-heading > p,
.content-main > p,
.faq-heading > p,
.final-copy > p {
    color: var(--muted);
    line-height: 1.9;
}

.device-heading > p:last-child {
    margin: 24px 0 0;
}

.device-switcher {
    overflow: hidden;
    border: 2px solid var(--charcoal);
    border-radius: 16px;
    background: var(--paper);
    box-shadow: 12px 12px 0 var(--teal);
}

.device-tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-bottom: 2px solid var(--charcoal);
}

.device-tab {
    min-height: 82px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 15px;
    border: 0;
    color: var(--ink);
    background: transparent;
    text-align: left;
    cursor: pointer;
}

.device-tab + .device-tab {
    border-left: 2px solid var(--charcoal);
}

.device-tab span {
    color: var(--purple);
    font-size: 10px;
    font-weight: 900;
}

.device-tab.is-active {
    color: var(--white);
    background: var(--teal);
    font-weight: 800;
}

.device-tab.is-active span {
    color: #b6fff7;
}

.device-display {
    min-height: 490px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 430px;
}

.device-copy {
    padding: clamp(38px, 6vw, 74px);
    display: grid;
    align-content: center;
}

.device-label {
    color: var(--teal);
    letter-spacing: .16em;
    font-size: 9px;
    font-weight: 900;
}

.device-copy h3 {
    margin: 18px 0;
    font-size: clamp(35px, 5vw, 58px);
    letter-spacing: -.045em;
}

.device-copy > p {
    max-width: 650px;
    margin: 0;
    color: var(--muted);
    line-height: 1.85;
}

.device-copy ul {
    margin: 28px 0;
    padding: 0;
    display: grid;
    gap: 12px;
    list-style: none;
}

.device-copy li {
    position: relative;
    padding-left: 24px;
    color: #4e4a46;
}

.device-copy li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .55em;
    width: 9px;
    height: 9px;
    background: var(--purple);
}

.device-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.device-actions a {
    min-height: 50px;
    padding: 0 20px;
    display: inline-flex;
    align-items: center;
    gap: 13px;
    border-radius: 11px 11px 4px 11px;
    font-weight: 800;
}

.device-actions a:first-child {
    color: var(--white);
    background: var(--charcoal);
}

.device-actions a:last-child {
    border: 2px solid var(--line);
}

.device-actions span {
    color: var(--purple);
}

.device-visual {
    position: relative;
    overflow: hidden;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at center, rgba(168,151,239,.24), transparent 35%),
        var(--charcoal);
}

.device-watermark {
    position: absolute;
    left: -25px;
    bottom: -55px;
    color: rgba(255,255,255,.045);
    font-size: 300px;
    line-height: 1;
    font-weight: 900;
}

.device-sheet {
    position: relative;
    z-index: 2;
    width: 310px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 13px;
    background: var(--charcoal-2);
    box-shadow: 0 30px 65px rgba(0,0,0,.34);
    transform: rotate(3deg);
}

.device-sheet-head {
    min-height: 48px;
    padding: 0 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,.1);
    color: rgba(255,255,255,.35);
    letter-spacing: .12em;
    font-size: 8px;
}

.device-sheet-head b {
    color: var(--orange);
    font-size: 13px;
}

.device-sheet-row {
    min-height: 66px;
    padding: 0 14px;
    display: grid;
    grid-template-columns: 105px 1fr;
    align-items: center;
    gap: 14px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}

.device-sheet-row:last-child {
    border-bottom: 0;
}

.device-sheet-row span {
    color: rgba(255,255,255,.34);
    font-size: 9px;
}

.device-sheet-row strong {
    color: var(--teal-2);
    font-size: 10px;
}

.steps-section {
    color: var(--white);
    background: var(--charcoal);
}

.steps-heading {
    margin-bottom: 54px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, .7fr);
    gap: 80px;
    align-items: end;
}

.steps-heading .eyebrow {
    color: var(--purple-soft);
}

.steps-heading > p {
    margin: 0;
    color: rgba(255,255,255,.56);
}

.manual {
    overflow: hidden;
    border: 1px solid rgba(255,255,255,.13);
    border-radius: 16px;
    background: var(--charcoal-2);
}

.manual-nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-bottom: 1px solid rgba(255,255,255,.13);
}

.manual-step {
    min-height: 78px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    border: 0;
    color: rgba(255,255,255,.54);
    background: transparent;
    text-align: left;
    cursor: pointer;
}

.manual-step + .manual-step {
    border-left: 1px solid rgba(255,255,255,.13);
}

.manual-step span {
    color: var(--orange);
    font-size: 10px;
    font-weight: 900;
}

.manual-step.is-active {
    color: var(--charcoal);
    background: var(--sand);
    font-weight: 800;
}

.manual-step.is-active span {
    color: var(--purple);
}

.manual-display {
    min-height: 510px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 470px;
}

.manual-copy {
    padding: clamp(38px, 6vw, 74px);
    display: grid;
    align-content: center;
}

.manual-code {
    color: var(--purple-soft);
    letter-spacing: .16em;
    font-size: 9px;
    font-weight: 900;
}

.manual-copy h3 {
    margin: 18px 0;
    font-size: clamp(35px, 5vw, 58px);
    letter-spacing: -.045em;
}

.manual-copy > p {
    max-width: 650px;
    margin: 0;
    color: rgba(255,255,255,.55);
    line-height: 1.85;
}

.manual-copy ol {
    margin: 28px 0;
    padding: 0;
    display: grid;
    gap: 12px;
    list-style: none;
    counter-reset: manual;
}

.manual-copy li {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 12px;
    color: rgba(255,255,255,.72);
    line-height: 1.65;
    counter-increment: manual;
}

.manual-copy li::before {
    content: counter(manual);
    width: 26px;
    height: 26px;
    display: grid;
    place-items: center;
    border: 1px solid var(--purple-soft);
    border-radius: 50%;
    color: var(--purple-soft);
    font-size: 9px;
    font-weight: 900;
}

.manual-result {
    padding: 17px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border-radius: 11px;
    color: var(--charcoal);
    background: var(--sand);
}

.manual-result span {
    font-size: 10px;
}

.manual-result strong {
    font-size: 12px;
}

.manual-visual {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at center, rgba(109,79,210,.2), transparent 35%),
        #121315;
}

.step-image {
    position: absolute;
    inset: 35px;
    border-radius: 14px;
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
}

.step-image-one {
    background-image:
        url("../pic/guide/aapoker-download-step-01.png"),
        linear-gradient(145deg, #efe8dc, #d8c7a8);
}

.step-image-two {
    background-image:
        url("../pic/guide/aapoker-download-step-02.png"),
        linear-gradient(145deg, #efe8dc, #d8c7a8);
}

.step-image-three {
    background-image:
        radial-gradient(circle at center, rgba(10,164,156,.42), transparent 27%),
        linear-gradient(145deg, #315c58, #191a1c);
}

.step-image-four {
    background-image:
        url("../pic/app/aapoker-mobile-gameplay-preview.png"),
        linear-gradient(145deg, #eee9f8, #cfc1ed);
}

.manual-number {
    position: absolute;
    right: 20px;
    bottom: 10px;
    color: rgba(255,255,255,.08);
    font-size: 145px;
    line-height: 1;
    font-weight: 900;
}

.progress-section {
    background: var(--paper);
}

.progress-shell {
    display: grid;
    grid-template-columns: minmax(280px, .7fr) minmax(0, 1.3fr);
    gap: 84px;
}

.progress-title > p {
    margin-top: 25px;
}

.progress-board {
    display: grid;
    gap: 10px;
}

.progress-item {
    min-height: 84px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 44px 1fr auto;
    align-items: center;
    gap: 16px;
    border: 2px solid var(--charcoal);
    border-radius: 13px 13px 4px 13px;
    color: var(--ink);
    background: var(--sand);
    text-align: left;
    cursor: pointer;
    transition: background .2s ease, color .2s ease;
}

.progress-item.is-complete {
    color: var(--white);
    background: var(--teal);
}

.progress-check {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border: 2px solid currentColor;
    border-radius: 50%;
}

.progress-item.is-complete .progress-check::after {
    content: "✓";
    font-weight: 900;
}

.progress-item strong,
.progress-item small {
    display: block;
}

.progress-item small {
    margin-top: 5px;
    opacity: .6;
}

.progress-item > b {
    color: var(--purple);
    font-size: 12px;
}

.progress-item.is-complete > b {
    color: #b6fff7;
}

.progress-summary {
    min-height: 110px;
    padding: 22px;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    border-radius: 14px 14px 4px 14px;
    color: var(--white);
    background: var(--charcoal);
}

.progress-summary > span {
    color: rgba(255,255,255,.42);
    letter-spacing: .12em;
    font-size: 8px;
}

.progress-summary > strong {
    color: var(--orange);
    font-size: 26px;
}

.progress-summary p {
    grid-column: 1 / 3;
    margin: 8px 0 0;
    color: rgba(255,255,255,.55);
}

.progress-summary b {
    color: var(--teal-2);
}

.first-launch {
    background: var(--purple);
}

.launch-grid {
    display: grid;
    grid-template-columns: minmax(430px, 1fr) minmax(0, 1fr);
    gap: 80px;
    align-items: center;
}

.launch-preview {
    position: relative;
    min-height: 560px;
    margin: 0;
    overflow: hidden;
    border: 2px solid var(--charcoal);
    border-radius: 16px;
    background: var(--charcoal);
    box-shadow: 14px 14px 0 rgba(25,26,28,.26);
}

.launch-image {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to top, rgba(25,26,28,.88), transparent 60%),
        url("../pic/app/aapoker-mobile-gameplay-preview.png"),
        radial-gradient(circle at center, rgba(168,151,239,.5), transparent 30%),
        linear-gradient(145deg, #5d47aa, #191a1c);
    background-position: center;
    background-size: cover, contain, auto, auto;
    background-repeat: no-repeat;
}

.launch-preview figcaption {
    position: absolute;
    z-index: 2;
    left: 28px;
    right: 28px;
    bottom: 27px;
    color: var(--white);
}

.launch-preview figcaption span {
    display: block;
    margin-bottom: 8px;
    color: #d2c8ff;
    letter-spacing: .14em;
    font-size: 8px;
    font-weight: 900;
}

.launch-preview figcaption strong {
    font-size: 22px;
}

.launch-copy {
    color: var(--white);
}

.launch-copy .eyebrow {
    color: #d2c8ff;
}

.launch-checks {
    margin-top: 34px;
    border-top: 1px solid rgba(255,255,255,.18);
}

.launch-checks article {
    padding: 23px 0;
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 17px;
    border-bottom: 1px solid rgba(255,255,255,.18);
}

.launch-checks article > span {
    color: var(--orange);
    font-size: 10px;
    font-weight: 900;
}

.launch-checks strong {
    display: block;
    margin-bottom: 8px;
    font-size: 18px;
}

.launch-checks p {
    margin: 0;
    color: rgba(255,255,255,.58);
    line-height: 1.7;
}

.trouble-section {
    color: var(--white);
    background: var(--teal);
}

.trouble-heading {
    max-width: 800px;
    margin-bottom: 50px;
    text-align: center;
}

.trouble-heading .eyebrow {
    color: #b6fff7;
}

.trouble-heading > p {
    margin-top: 20px;
    color: rgba(255,255,255,.62);
}

.trouble-board {
    overflow: hidden;
    display: grid;
    grid-template-columns: 330px minmax(0, 1fr);
    min-height: 470px;
    border: 2px solid var(--charcoal);
    border-radius: 16px;
    color: var(--ink);
    background: var(--paper);
    box-shadow: 12px 12px 0 var(--charcoal);
}

.trouble-tabs {
    padding: 18px;
    display: grid;
    align-content: start;
    gap: 8px;
    border-right: 2px solid var(--charcoal);
    background: var(--charcoal);
}

.trouble-tab {
    min-height: 68px;
    padding: 0 16px;
    display: grid;
    grid-template-columns: 42px 1fr;
    align-items: center;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 10px;
    color: rgba(255,255,255,.56);
    background: transparent;
    text-align: left;
    cursor: pointer;
}

.trouble-tab span {
    color: var(--orange);
    font-size: 10px;
    font-weight: 900;
}

.trouble-tab.is-active,
.trouble-tab:hover {
    color: var(--charcoal);
    background: var(--sand);
    font-weight: 800;
}

.trouble-tab.is-active span,
.trouble-tab:hover span {
    color: var(--purple);
}

.trouble-display {
    padding: clamp(36px, 6vw, 72px);
    display: grid;
    align-content: center;
}

.trouble-code {
    color: var(--purple);
    letter-spacing: .16em;
    font-size: 9px;
    font-weight: 900;
}

.trouble-display h3 {
    margin: 18px 0;
    font-size: clamp(34px, 5vw, 56px);
    letter-spacing: -.045em;
}

.trouble-display > p {
    max-width: 700px;
    margin: 0;
    color: var(--muted);
    line-height: 1.85;
}

.trouble-display ol {
    margin: 28px 0 34px;
    padding: 0;
    display: grid;
    gap: 12px;
    list-style: none;
    counter-reset: trouble;
}

.trouble-display li {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 12px;
    color: #4f4a45;
    line-height: 1.65;
    counter-increment: trouble;
}

.trouble-display li::before {
    content: counter(trouble);
    width: 26px;
    height: 26px;
    display: grid;
    place-items: center;
    border: 1px solid var(--purple);
    border-radius: 50%;
    color: var(--purple);
    font-size: 9px;
    font-weight: 900;
}

.trouble-display > a {
    width: max-content;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--teal);
    font-weight: 800;
}

.content-section {
    padding-top: 42px;
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) 390px;
    gap: 88px;
}

.content-main > p {
    margin-top: 25px;
    font-size: 16px;
}

.install-links {
    border-top: 2px solid var(--charcoal);
}

.install-links > span {
    display: block;
    padding: 18px 0;
    color: var(--muted);
    letter-spacing: .14em;
    font-size: 8px;
    font-weight: 900;
}

.install-links > a {
    min-height: 88px;
    display: grid;
    grid-template-columns: 40px 1fr auto;
    align-items: center;
    gap: 14px;
    border-top: 1px solid var(--line);
}

.install-links b {
    color: var(--purple);
    font-size: 10px;
}

.install-links strong,
.install-links small {
    display: block;
}

.install-links small {
    margin-top: 5px;
    color: var(--muted);
}

.install-links i {
    color: var(--teal);
    font-style: normal;
}

.faq-section {
    background: var(--paper);
}

.faq-heading {
    max-width: 780px;
    margin-bottom: 50px;
    text-align: center;
}

.faq-heading > p {
    margin-top: 20px;
}

.faq-layout {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 60px;
}

.manual-cover {
    min-height: 310px;
    padding: 30px;
    display: grid;
    align-content: space-between;
    border: 2px solid var(--charcoal);
    border-radius: 14px 14px 4px 14px;
    color: var(--white);
    background: var(--purple);
    box-shadow: 9px 9px 0 var(--teal);
}

.manual-cover span {
    color: var(--sand);
    font-size: 72px;
    line-height: 1;
    font-weight: 900;
}

.manual-cover strong {
    font-size: 28px;
    line-height: 1.05;
}

.manual-cover small {
    color: rgba(255,255,255,.42);
    letter-spacing: .13em;
    font-size: 7px;
}

.faq-list {
    border-top: 2px solid var(--charcoal);
}

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

.faq-item button {
    width: 100%;
    min-height: 84px;
    padding: 18px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    border: 0;
    color: var(--ink);
    background: transparent;
    text-align: left;
    cursor: pointer;
    font-weight: 800;
}

.faq-item button i {
    position: relative;
    flex: 0 0 28px;
    width: 28px;
    height: 28px;
    border: 1px solid var(--charcoal);
    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: var(--charcoal);
    transform: translate(-50%, -50%);
}

.faq-item button i::after {
    transform: translate(-50%, -50%) rotate(90deg);
    transition: transform .2s ease;
}

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

.faq-answer {
    padding: 0 48px 24px 0;
}

.faq-answer p {
    margin: 0;
    color: var(--muted);
    line-height: 1.85;
}

.final-panel {
    width: min(calc(100% - 40px), var(--max));
    margin: 110px auto;
    padding: 58px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 430px;
    gap: 60px;
    align-items: center;
    border-radius: 16px;
    color: var(--white);
    background:
        radial-gradient(circle at 88% 0%, rgba(109,79,210,.3), transparent 32%),
        var(--charcoal);
}

.final-copy > span {
    color: var(--teal-2);
    letter-spacing: .15em;
    font-size: 9px;
    font-weight: 900;
}

.final-copy h2 {
    margin-top: 18px;
}

.final-copy > p {
    margin: 20px 0 0;
    color: rgba(255,255,255,.52);
}

.final-actions {
    display: grid;
    gap: 10px;
}

.final-actions a {
    min-height: 88px;
    padding: 17px 19px;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    border-radius: 13px 13px 4px 13px;
}

.final-actions a:first-child {
    color: var(--white);
    background: var(--teal);
}

.final-actions a:last-child {
    color: var(--white);
    background: var(--purple);
}

.final-actions span,
.final-actions small {
    display: block;
}

.final-actions span {
    font-weight: 800;
}

.final-actions small {
    margin-top: 5px;
    opacity: .58;
}

.final-actions b {
    grid-column: 2;
    grid-row: 1 / 3;
    color: var(--sand);
    font-size: 21px;
}

.manual-footer {
    padding: 70px 0 28px;
    color: rgba(255,255,255,.56);
    background: #101113;
}

.manual-index,
.manual-directory,
.footer-links,
.footer-bottom {
    width: min(calc(100% - 40px), var(--max));
    margin: 0 auto;
}

.manual-index {
    padding-bottom: 36px;
    display: flex;
    align-items: flex-end;
    gap: 18px;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.manual-index > span {
    color: var(--orange);
    font-size: 86px;
    line-height: .75;
    font-weight: 900;
    letter-spacing: -.08em;
}

.manual-index strong,
.manual-index small {
    display: block;
}

.manual-index strong {
    color: var(--white);
    letter-spacing: .06em;
    font-size: 19px;
}

.manual-index small {
    margin-top: 6px;
    color: rgba(255,255,255,.34);
    letter-spacing: .14em;
    font-size: 7px;
}

.manual-directory {
    padding: 42px 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.manual-directory article {
    padding: 0 24px;
}

.manual-directory article + article {
    border-left: 1px solid rgba(255,255,255,.1);
}

.manual-directory span {
    color: var(--teal-2);
    font-size: 10px;
    font-weight: 900;
}

.manual-directory strong {
    display: block;
    margin: 13px 0 8px;
    color: var(--white);
    font-size: 17px;
}

.manual-directory p {
    margin: 0;
    line-height: 1.7;
    font-size: 12px;
}

.footer-links {
    padding: 48px 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 55px;
}

.footer-links > div {
    display: grid;
    align-content: start;
    gap: 10px;
}

.footer-links span {
    margin-bottom: 8px;
    color: var(--white);
    font-size: 12px;
    font-weight: 800;
}

.footer-links a {
    font-size: 12px;
}

.footer-links a:hover {
    color: var(--teal-2);
}

.footer-bottom {
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    gap: 30px;
    border-top: 1px solid rgba(255,255,255,.1);
    font-size: 10px;
}

.footer-bottom p {
    margin: 0;
}

.footer-bottom > div {
    display: flex;
    gap: 26px;
    letter-spacing: .12em;
    font-size: 8px;
}

@media (max-width: 1120px) {
    .desktop-nav {
        display: none;
    }

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

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

    .menu-button {
        width: 44px;
        height: 44px;
        padding: 12px;
        display: grid;
        align-content: center;
        gap: 7px;
        border: 2px solid var(--charcoal);
        border-radius: 13px 13px 4px 13px;
        background: transparent;
        cursor: pointer;
    }

    .menu-button span {
        height: 2px;
        background: var(--charcoal);
    }

    .mobile-nav {
        position: fixed;
        left: 0;
        right: 0;
        top: 78px;
        padding: 16px 20px 28px;
        display: none;
        gap: 5px;
        background: var(--sand);
        box-shadow: 0 24px 50px rgba(32,31,32,.15);
    }

    .mobile-nav.is-open {
        display: grid;
    }

    .mobile-nav a {
        padding: 15px;
        border-bottom: 1px solid var(--line);
    }

    .hero-shell {
        grid-template-columns: minmax(0, 1fr) 400px;
        gap: 36px;
    }

    .manual-display {
        grid-template-columns: minmax(0, 1fr) 400px;
    }

    .manual-directory {
        grid-template-columns: 1fr 1fr;
    }

    .manual-directory article:nth-child(3) {
        border-left: 0;
    }

    .manual-directory article:nth-child(-n+2) {
        padding-bottom: 30px;
        border-bottom: 1px solid rgba(255,255,255,.1);
    }

    .manual-directory article:nth-child(n+3) {
        padding-top: 30px;
    }
}

@media (max-width: 850px) {
    .hero-shell,
    .device-display,
    .steps-heading,
    .progress-shell,
    .launch-grid,
    .content-grid,
    .final-panel {
        grid-template-columns: 1fr;
        gap: 45px;
    }

    .install-station {
        width: min(100%, 580px);
        margin: 0 auto;
    }

    .device-visual {
        min-height: 420px;
    }

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

    .manual-visual {
        min-height: 430px;
    }

    .trouble-board {
        grid-template-columns: 1fr;
    }

    .trouble-tabs {
        grid-template-columns: repeat(2, 1fr);
        border-right: 0;
        border-bottom: 2px solid var(--charcoal);
    }

    .faq-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .manual-cover {
        min-height: auto;
        grid-template-columns: auto 1fr auto;
        align-items: center;
        gap: 20px;
    }
}

@media (max-width: 580px) {
    .header-inner,
    .hero-shell,
    .device-heading,
    .device-switcher,
    .steps-heading,
    .manual,
    .progress-shell,
    .launch-grid,
    .trouble-heading,
    .trouble-board,
    .content-grid,
    .faq-heading,
    .faq-layout,
    .manual-index,
    .manual-directory,
    .footer-links,
    .footer-bottom {
        width: min(calc(100% - 28px), var(--max));
    }

    .site-header {
        position: relative;
    }

    .header-cta {
        display: none;
    }

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

    .brand-copy small {
        display: none;
    }

    .hero {
        min-height: auto;
    }

    .hero-shell {
        padding: 58px 0 92px;
    }

    .hero h1 {
        font-size: clamp(52px, 16vw, 72px);
    }

    .hero-lead {
        font-size: 15px;
    }

    .hero-actions {
        display: grid;
    }

    .primary-action,
    .secondary-action {
        width: 100%;
        justify-content: center;
    }

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

    .hero-facts div {
        padding: 15px 0;
        display: grid;
        grid-template-columns: 105px 1fr;
        align-items: center;
        border-bottom: 1px solid var(--line);
    }

    .hero-facts div + div {
        padding-left: 0;
        border-left: 0;
    }

    .hero-facts dt {
        margin: 0;
    }

    .station-body {
        min-height: 360px;
    }

    .devices-image {
        inset: 30px 25px 120px;
    }

    .station-card {
        width: 205px;
    }

    .station-card-download {
        left: 5px;
    }

    .station-card-install {
        right: 5px;
        top: 15px;
    }

    .hero-labels {
        display: none;
    }

    .device-section,
    .steps-section,
    .progress-section,
    .first-launch,
    .trouble-section,
    .content-section,
    .faq-section {
        padding: 78px 0;
    }

    .device-heading h2,
    .steps-heading h2,
    .progress-title h2,
    .launch-copy h2,
    .trouble-heading h2,
    .content-main h2,
    .faq-heading h2,
    .final-copy h2 {
        font-size: 38px;
    }

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

    .device-tab + .device-tab {
        border-left: 0;
        border-top: 2px solid var(--charcoal);
    }

    .device-copy {
        padding: 31px 21px 38px;
    }

    .device-copy h3 {
        font-size: 34px;
    }

    .device-actions {
        display: grid;
    }

    .device-actions a {
        width: 100%;
        justify-content: center;
    }

    .device-sheet {
        width: min(90%, 310px);
    }

    .manual-nav {
        grid-template-columns: 1fr 1fr;
    }

    .manual-step:nth-child(3) {
        border-left: 0;
        border-top: 1px solid rgba(255,255,255,.13);
    }

    .manual-step:nth-child(4) {
        border-top: 1px solid rgba(255,255,255,.13);
    }

    .manual-copy {
        padding: 31px 21px 38px;
    }

    .manual-copy h3 {
        font-size: 34px;
    }

    .manual-visual {
        min-height: 360px;
    }

    .step-image {
        inset: 25px;
    }

    .progress-item {
        grid-template-columns: 42px 1fr auto;
        padding: 14px;
    }

    .progress-summary {
        min-height: 100px;
    }

    .launch-preview {
        min-height: 430px;
    }

    .trouble-tabs {
        padding: 12px;
        grid-template-columns: 1fr 1fr;
    }

    .trouble-tab {
        min-height: 58px;
        padding: 8px 10px;
        grid-template-columns: 28px 1fr;
        font-size: 11px;
    }

    .trouble-display {
        padding: 30px 22px 38px;
    }

    .manual-cover {
        grid-template-columns: auto 1fr;
    }

    .manual-cover small {
        grid-column: 1 / 3;
    }

    .faq-answer {
        padding-right: 0;
    }

    .final-panel {
        width: calc(100% - 28px);
        margin: 78px auto;
        padding: 32px 22px;
    }

    .manual-directory {
        grid-template-columns: 1fr;
    }

    .manual-directory article {
        padding: 22px 0;
        border-bottom: 1px solid rgba(255,255,255,.1);
    }

    .manual-directory article + article {
        border-left: 0;
    }

    .manual-directory article:nth-child(-n+2) {
        padding-bottom: 22px;
    }

    .manual-directory article:nth-child(n+3) {
        padding-top: 22px;
    }

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

    .footer-links > div:last-child {
        grid-column: 1 / 3;
    }

    .footer-bottom {
        flex-direction: column;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}