@charset "UTF-8";
:root {
    --orange: #ff9900;
    --orange-deep: #ef7f00;
    --orange-soft: #ffc84d;
    --ink: #12120f;
    --ink-soft: #292920;
    --cream: #fff7e5;
    --cream-deep: #f6ead0;
    --paper: #fffdf8;
    --white: #ffffff;
    --line: #d8d3c7;
    --muted: #69675f;
    --success: #14795a;
    --container: 1200px;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 28px;
    --shadow-hard: 6px 6px 0 var(--ink);
    --shadow-soft: 0 24px 70px rgba(28, 24, 14, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 84px;
}

body {
    margin: 0;
    min-width: 320px;
    color: var(--ink);
    background: var(--paper);
    font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
    line-height: 1.7;
    text-rendering: optimizeLegibility;
}

body.is-locked {
    overflow: hidden;
}

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

button,
a {
    touch-action: manipulation;
}

button {
    color: inherit;
}

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

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

ul,
ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

button:focus-visible,
a:focus-visible {
    outline: 3px solid #2a78ff;
    outline-offset: 4px;
}

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

.skip-link {
    position: fixed;
    z-index: 1200;
    top: 12px;
    left: 12px;
    padding: 10px 16px;
    color: var(--white);
    background: var(--ink);
    border-radius: 8px;
    transform: translateY(-160%);
}

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

.site-header {
    position: sticky;
    z-index: 900;
    top: 0;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(18, 18, 15, 0.16);
    backdrop-filter: blur(14px);
}

.nav-shell {
    display: flex;
    align-items: center;
    min-height: 72px;
    gap: 32px;
}

.brand {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    gap: 11px;
    font-size: 20px;
    font-weight: 900;
    letter-spacing: -0.04em;
}

.brand img {
    width: 46px;
    height: 46px;
    object-fit: contain;
    border: 2px solid var(--ink);
    border-radius: 50%;
    background: var(--cream);
}

.primary-nav {
    margin-left: auto;
}

.primary-nav ul {
    display: flex;
    align-items: center;
    gap: 2px;
}

.primary-nav a {
    position: relative;
    display: block;
    padding: 24px 12px 22px;
    color: #3f3e39;
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
}

.primary-nav a::after {
    position: absolute;
    right: 12px;
    bottom: 14px;
    left: 12px;
    height: 3px;
    content: "";
    background: var(--orange);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 180ms ease;
}

.primary-nav a:hover,
.primary-nav a.is-active {
    color: var(--ink);
}

.primary-nav a:hover::after,
.primary-nav a.is-active::after {
    transform: scaleX(1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 48px;
    padding: 0 24px;
    border: 2px solid var(--ink);
    border-radius: var(--radius-sm);
    font-weight: 900;
    line-height: 1;
    cursor: pointer;
    transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

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

.button:active {
    transform: translate(3px, 3px);
    box-shadow: 1px 1px 0 var(--ink);
}

.button-primary,
.button-download {
    background: var(--orange);
    box-shadow: 4px 4px 0 var(--ink);
}

.button-primary:hover,
.button-download:hover {
    background: var(--orange-soft);
    box-shadow: 6px 6px 0 var(--ink);
}

.button-dark {
    color: var(--white);
    background: var(--ink);
    box-shadow: 5px 5px 0 rgba(255, 255, 255, 0.42);
}

.button-dark:hover {
    background: #2d2d25;
}

.button-small {
    min-height: 42px;
    padding-inline: 16px;
    font-size: 13px;
}

.button-large {
    min-height: 58px;
    padding-inline: 32px;
    font-size: 17px;
}

.menu-toggle {
    display: none;
    width: 46px;
    height: 46px;
    padding: 0;
    border: 2px solid var(--ink);
    border-radius: 10px;
    background: var(--white);
    cursor: pointer;
}

.icon {
    display: inline-flex;
    width: 20px;
    height: 20px;
    flex: 0 0 20px;
}

.icon::before {
    width: 100%;
    height: 100%;
    content: "";
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.icon-download::before {
    background-image: url("../icons/download.svg");
}

.icon-menu::before {
    background-image: url("../icons/menu.svg");
}

.icon-close::before {
    background-image: url("../icons/close.svg");
}

.icon-zoom::before {
    background-image: url("../icons/zoom.svg");
}

.icon-arrow::before {
    background-image: url("../icons/arrow.svg");
}

.icon-scroll::before {
    background-image: url("../icons/scroll.svg");
}

.icon-bookmark::before {
    background-image: url("../icons/bookmark.svg");
}

.icon-moon::before {
    background-image: url("../icons/moon.svg");
}

.icon-layers::before {
    background-image: url("../icons/layers.svg");
}

.icon-monitor::before {
    background-image: url("../icons/monitor.svg");
}

.icon-tablet::before {
    background-image: url("../icons/tablet.svg");
}

.icon-mobile::before {
    background-image: url("../icons/mobile.svg");
}

.icon-chevron::before {
    background-image: url("../icons/chevron.svg");
}

.icon-invert::before {
    filter: invert(1);
}

.hero {
    position: relative;
    overflow: hidden;
    min-height: 730px;
    background: linear-gradient(116deg, var(--cream) 0 58%, var(--orange) 58% 100%);
    border-bottom: 2px solid var(--ink);
}

.hero::before,
.hero::after {
    position: absolute;
    content: "";
    pointer-events: none;
}

.hero::before {
    right: -130px;
    top: -160px;
    width: 450px;
    height: 450px;
    border: 46px solid var(--ink);
    border-radius: 50%;
    opacity: 0.08;
}

.hero::after {
    bottom: -90px;
    left: -70px;
    width: 230px;
    height: 230px;
    background: var(--ink);
    border-radius: 48% 52% 58% 42%;
    transform: rotate(34deg);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(var(--ink) 1.2px, transparent 1.2px);
    background-size: 24px 24px;
    opacity: 0.08;
    mask-image: linear-gradient(to right, transparent 0, transparent 54%, #000 75%, transparent 100%);
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(520px, 1.08fr);
    align-items: center;
    min-height: 730px;
    gap: 50px;
    padding-block: 74px 86px;
}

.hero-copy {
    max-width: 590px;
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
    color: var(--orange-deep);
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.14em;
}

.eyebrow::before {
    width: 36px;
    height: 3px;
    content: "";
    background: currentColor;
}

.eyebrow b {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: var(--ink);
    border: 1px solid currentColor;
    border-radius: 50%;
    letter-spacing: 0;
}

.hero h1 {
    margin-bottom: 0;
    font-size: clamp(48px, 5.6vw, 82px);
    font-weight: 950;
    line-height: 1.05;
    letter-spacing: -0.075em;
}

.hero h2 {
    margin: 10px 0 22px;
    font-size: clamp(27px, 3vw, 42px);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.05em;
}

.hero-intro {
    max-width: 540px;
    margin-bottom: 30px;
    color: #4f4c42;
    font-size: 16px;
}

.hero-buttons {
    display: flex;
    align-items: center;
    gap: 28px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    border-bottom: 2px solid var(--ink);
    font-weight: 800;
}

.text-link .icon {
    width: 17px;
    height: 17px;
    transition: transform 160ms ease;
}

.text-link:hover .icon {
    transform: translateX(4px);
}

.hero-points {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
    margin-top: 38px;
    color: #49473f;
    font-size: 13px;
    font-weight: 700;
}

.hero-points li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.point-dot {
    width: 12px;
    height: 12px;
    background: var(--orange);
    border: 2px solid var(--ink);
    border-radius: 50%;
}

.hero-visual {
    position: relative;
    min-height: 560px;
}

.phone {
    position: absolute;
    overflow: hidden;
    border: 8px solid var(--ink);
    border-radius: 42px;
    background: var(--white);
    box-shadow: var(--shadow-soft);
}

.phone-front {
    z-index: 3;
    top: 20px;
    left: 66px;
    width: 292px;
    height: 548px;
    transform: rotate(-3deg);
}

.phone-front img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
}

.phone-speaker {
    position: absolute;
    z-index: 2;
    top: 9px;
    left: 50%;
    width: 76px;
    height: 15px;
    background: var(--ink);
    border-radius: 999px;
    transform: translateX(-50%);
}

.phone-back {
    z-index: 2;
    right: 0;
    bottom: 12px;
    width: 270px;
    height: 505px;
    transform: rotate(7deg);
}

.phone-art {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    width: 100%;
    height: 100%;
    padding: 42px 28px;
    color: var(--white);
    background:
        linear-gradient(145deg, transparent 0 40%, rgba(255, 153, 0, 0.9) 40% 53%, transparent 53%),
        radial-gradient(circle at 30% 22%, #6c634b 0 4%, transparent 4.5%),
        linear-gradient(155deg, #34342c, #11110f 72%);
}

.phone-art::before {
    position: absolute;
    top: 72px;
    right: 28px;
    width: 112px;
    height: 112px;
    content: "";
    border: 16px solid rgba(255, 255, 255, 0.13);
    border-radius: 50%;
}

.phone-art span {
    color: var(--orange-soft);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.3em;
}

.phone-art b {
    margin-top: 8px;
    font-size: 38px;
    line-height: 1.15;
}

.mascot-card {
    position: absolute;
    z-index: 5;
    right: 8px;
    bottom: -22px;
    overflow: hidden;
    width: 154px;
    height: 128px;
    background: var(--white);
    border: 5px solid var(--ink);
    border-radius: 50% 50% 18px 18px;
    transform: rotate(-7deg);
}

.mascot-card img {
    width: 100%;
    height: 162px;
    object-fit: cover;
    object-position: top;
}

.paw-mark {
    position: absolute;
    z-index: 1;
    bottom: 22px;
    left: 0;
    width: 120px;
    height: 120px;
    transform: rotate(-20deg);
}

.paw-mark span,
.paw-mark b {
    position: absolute;
    display: block;
    background: var(--ink);
    border-radius: 50%;
}

.paw-mark span {
    width: 28px;
    height: 38px;
}

.paw-mark span:nth-child(1) { left: 3px; top: 26px; transform: rotate(-34deg); }
.paw-mark span:nth-child(2) { left: 31px; top: 2px; transform: rotate(-13deg); }
.paw-mark span:nth-child(3) { right: 27px; top: 4px; transform: rotate(17deg); }
.paw-mark span:nth-child(4) { right: 0; top: 32px; transform: rotate(38deg); }
.paw-mark b { left: 25px; bottom: 5px; width: 74px; height: 65px; }

.spark {
    position: absolute;
    z-index: 6;
    color: var(--cream);
    font-size: 46px;
    -webkit-text-stroke: 3px var(--ink);
}

.spark-one {
    top: 0;
    right: 4px;
    transform: rotate(12deg);
}

.spark-two {
    top: 174px;
    left: 0;
    font-size: 32px;
    transform: rotate(-12deg);
}

.section {
    padding-block: 112px;
}

.section-heading {
    margin-bottom: 50px;
}

.heading-row {
    display: grid;
    grid-template-columns: minmax(300px, 0.9fr) minmax(360px, 1.1fr);
    align-items: end;
    gap: 70px;
}

.section-heading h2,
.discover-heading h2,
.reading-copy h2,
.device-panel h2,
.faq-panel h2 {
    margin-bottom: 0;
    font-size: clamp(34px, 4vw, 54px);
    font-weight: 950;
    line-height: 1.1;
    letter-spacing: -0.06em;
}

.section-heading > p,
.discover-heading > p,
.reading-copy > p,
.device-panel > p {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 15px;
}

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

.screen-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.screen-card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding: 12px;
    text-align: left;
    background: var(--white);
    border: 2px solid var(--ink);
    border-radius: var(--radius-md);
    cursor: zoom-in;
    transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.screen-card:hover {
    background: var(--cream);
    box-shadow: var(--shadow-hard);
    transform: translate(-4px, -4px);
}

.screen-meta {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    min-height: 44px;
    padding: 2px 3px 8px;
}

.screen-meta b {
    color: var(--orange-deep);
    font-size: 29px;
    font-style: italic;
    line-height: 1;
}

.screen-meta small {
    color: var(--muted);
    font-size: 9px;
    font-weight: 900;
    letter-spacing: 0.13em;
}

.screen-frame {
    position: relative;
    display: block;
    overflow: hidden;
    width: 100%;
    aspect-ratio: 4 / 5;
    background: var(--cream-deep);
    border: 1px solid var(--ink);
    border-radius: 10px;
}

.screen-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 240ms ease;
}

.screen-card:hover .screen-frame img {
    transform: scale(1.035);
}

.frame-top img { object-position: 50% 0%; }
.frame-middle img { object-position: 50% 32%; }
.frame-lower img { object-position: 50% 68%; }
.frame-reading img { object-position: 50% 100%; filter: saturate(0.86) contrast(1.04); }

.screen-caption {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 17px 4px 5px;
}

.screen-caption > span {
    display: grid;
    gap: 2px;
}

.screen-caption strong {
    font-size: 16px;
}

.screen-caption small {
    color: var(--muted);
    font-size: 11px;
}

.screen-caption .icon {
    width: 22px;
    height: 22px;
}

.discover-section {
    position: relative;
    overflow: hidden;
    color: var(--white);
    background: var(--ink);
}

.discover-section::after {
    position: absolute;
    right: -55px;
    bottom: -140px;
    width: 320px;
    height: 320px;
    content: "";
    border: 34px solid rgba(255, 153, 0, 0.5);
    border-radius: 42% 58% 47% 53%;
    transform: rotate(33deg);
}

.discover-heading {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin-bottom: 46px;
}

.discover-heading h2 {
    margin-bottom: 14px;
}

.discover-heading > p {
    color: #c9c7bf;
}

.eyebrow-light {
    color: var(--orange-soft);
}

.eyebrow-light b {
    color: var(--white);
}

.discover-layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.75fr);
    gap: 38px;
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 22px;
}

.filter-bar button {
    min-width: 62px;
    padding: 9px 14px;
    color: #d0cec6;
    background: #24241f;
    border: 1px solid #4c4b43;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 800;
    cursor: pointer;
}

.filter-bar button:hover,
.filter-bar button.is-active {
    color: var(--ink);
    background: var(--orange);
    border-color: var(--orange);
}

.genre-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.genre-card {
    position: relative;
    overflow: hidden;
    min-height: 250px;
    padding: 22px 18px;
    color: var(--ink);
    border: 2px solid var(--white);
    border-radius: 14px;
    transition: opacity 180ms ease, transform 180ms ease;
}

.genre-card[hidden] {
    display: none;
}

.genre-card::before,
.genre-card::after {
    position: absolute;
    content: "";
    border-radius: 50%;
}

.genre-card::before {
    right: -38px;
    bottom: -22px;
    width: 130px;
    height: 130px;
    border: 22px solid rgba(18, 18, 15, 0.16);
}

.genre-card::after {
    right: 20px;
    bottom: 24px;
    width: 42px;
    height: 42px;
    background: rgba(18, 18, 15, 0.13);
}

.genre-card span {
    display: inline-flex;
    padding: 4px 8px;
    color: var(--white);
    background: var(--ink);
    border-radius: 5px;
    font-size: 10px;
    font-weight: 900;
}

.genre-card h3 {
    position: relative;
    z-index: 1;
    margin: 33px 0 8px;
    font-size: 22px;
    line-height: 1.3;
}

.genre-card small {
    position: relative;
    z-index: 1;
    font-weight: 700;
}

.genre-orange { background: var(--orange); }
.genre-cream { background: var(--cream-deep); }
.genre-white { background: var(--white); }
.genre-line { color: var(--white); background: #2c2c26; }
.genre-line span { color: var(--ink); background: var(--orange); }
.genre-line::before { border-color: rgba(255, 153, 0, 0.35); }
.genre-line::after { background: rgba(255, 153, 0, 0.35); }

.update-panel {
    padding: 25px;
    color: var(--ink);
    background: var(--cream);
    border: 2px solid var(--white);
    border-radius: 16px;
}

.panel-title {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 17px;
    border-bottom: 2px solid var(--ink);
}

.panel-title small {
    color: var(--orange-deep);
    font-size: 9px;
    font-weight: 900;
    letter-spacing: 0.12em;
}

.panel-title h3 {
    margin-bottom: 0;
    font-size: 28px;
    line-height: 1.2;
}

.panel-title > span {
    padding: 6px 9px;
    color: var(--white);
    background: var(--ink);
    border-radius: 6px;
    font-size: 10px;
    font-weight: 800;
}

.update-list li {
    display: grid;
    grid-template-columns: 82px 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 18px 0;
    border-bottom: 1px solid #d5c9ad;
}

.update-list li:last-child {
    border-bottom: 0;
}

.update-list b {
    font-size: 13px;
}

.update-list span {
    color: #646055;
    font-size: 12px;
}

.update-list em {
    padding: 5px 7px;
    color: #9b5700;
    background: #ffe1a6;
    border-radius: 5px;
    font-size: 9px;
    font-style: normal;
    font-weight: 900;
    white-space: nowrap;
}

.reading-section {
    overflow: hidden;
    background: var(--orange);
    border-bottom: 2px solid var(--ink);
}

.reading-grid {
    display: grid;
    grid-template-columns: minmax(250px, 0.72fr) minmax(300px, 0.9fr) minmax(380px, 1.12fr);
    align-items: center;
    gap: 42px;
}

.reading-copy .eyebrow {
    color: var(--ink);
}

.reading-copy h2 {
    margin-bottom: 18px;
}

.reading-copy > p {
    color: #392b16;
}

.text-link-dark {
    margin-top: 24px;
}

.reader-device {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
    min-height: 350px;
    padding: 15px;
    background: var(--ink);
    border: 4px solid var(--ink);
    border-radius: 24px;
    box-shadow: 12px 12px 0 rgba(255, 255, 255, 0.55);
    transform: rotate(-3deg);
}

.reader-page {
    overflow: hidden;
    padding: 14px 10px;
    background: var(--cream);
}

.reader-page-one {
    border-radius: 10px 0 0 10px;
}

.reader-page-two {
    border-radius: 0 10px 10px 0;
}

.reader-page span {
    display: block;
    height: 28%;
    margin-bottom: 10px;
    background:
        linear-gradient(140deg, transparent 50%, rgba(18, 18, 15, 0.22) 51%),
        radial-gradient(circle at 32% 45%, var(--orange) 0 16%, transparent 17%),
        #ddd3bb;
    border: 2px solid var(--ink);
    border-radius: 7px;
}

.reader-page-two span:first-child {
    height: 45%;
    background:
        radial-gradient(circle at 68% 40%, var(--orange) 0 13%, transparent 14%),
        repeating-linear-gradient(-35deg, #efe2c4 0 14px, #d2c3a5 14px 16px);
}

.reader-page-two span:last-child {
    height: 43%;
}

.reader-progress {
    position: absolute;
    right: 36px;
    bottom: 27px;
    left: 36px;
    height: 6px;
    background: rgba(18, 18, 15, 0.25);
    border: 1px solid var(--ink);
    border-radius: 999px;
}

.reader-progress i {
    display: block;
    width: 62%;
    height: 100%;
    background: var(--orange);
    border-radius: inherit;
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.feature-grid article {
    display: flex;
    align-items: flex-start;
    min-height: 140px;
    gap: 15px;
    padding: 22px 18px;
    background: var(--cream);
    border: 2px solid var(--ink);
    border-radius: 14px;
}

.feature-grid .icon {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
}

.feature-grid h3 {
    margin-bottom: 5px;
    font-size: 17px;
}

.feature-grid p {
    margin-bottom: 0;
    color: #5f5849;
    font-size: 12px;
}

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

.version-track {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border: 2px solid var(--ink);
    border-radius: var(--radius-md);
}

.version-track li {
    position: relative;
    display: grid;
    grid-template-columns: 54px 1fr;
    gap: 15px;
    min-height: 210px;
    padding: 30px 24px;
    border-right: 1px solid var(--ink);
}

.version-track li:last-child {
    border-right: 0;
}

.version-track li > span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    color: var(--ink);
    background: var(--orange);
    border: 2px solid var(--ink);
    border-radius: 50%;
    font-size: 15px;
    font-weight: 950;
}

.version-track small {
    color: var(--orange-deep);
    font-size: 10px;
    font-weight: 900;
    letter-spacing: 0.08em;
}

.version-track h3 {
    margin: 7px 0 10px;
    font-size: 20px;
    line-height: 1.35;
}

.version-track p {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 13px;
}

.support-section {
    padding-block: 0;
    background: var(--cream);
    border-block: 2px solid var(--ink);
}

.support-grid {
    display: grid;
    grid-template-columns: 0.92fr 1.08fr;
}

.device-panel,
.faq-panel {
    padding: 90px 56px 92px;
}

.device-panel {
    border-right: 2px solid var(--ink);
}

.device-panel h2,
.faq-panel h2 {
    margin-bottom: 15px;
}

.device-icons {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin: 32px 0;
}

.device-icons span {
    display: grid;
    justify-items: center;
    gap: 7px;
    font-size: 12px;
    font-weight: 800;
}

.device-icons .icon {
    width: 42px;
    height: 42px;
}

.device-result {
    display: grid;
    gap: 4px;
    margin-top: 20px;
    padding: 17px 18px;
    color: #5c5548;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid #cfc5b0;
    border-radius: 10px;
    font-size: 12px;
}

.device-result strong {
    color: var(--ink);
    font-size: 14px;
}

.accordion {
    margin-top: 28px;
    border-top: 2px solid var(--ink);
}

.faq-item {
    border-bottom: 1px solid #bdb5a4;
}

.faq-item h3 {
    margin: 0;
}

.faq-item button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-height: 66px;
    padding: 12px 0;
    text-align: left;
    background: transparent;
    border: 0;
    cursor: pointer;
}

.faq-item button span {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 850;
}

.faq-item button b {
    color: var(--orange-deep);
    font-size: 11px;
}

.faq-item .icon {
    transition: transform 180ms ease;
}

.faq-item.is-open .icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 38px 18px;
}

.faq-answer p {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 13px;
}

.reviews-section {
    background: var(--white);
}

.review-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.review-card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 330px;
    padding: 28px;
    background: var(--cream);
    border: 2px solid var(--ink);
    border-radius: var(--radius-md);
    transition: box-shadow 180ms ease, transform 180ms ease;
}

.review-card:nth-child(even) {
    background: var(--white);
}

.review-card:hover {
    box-shadow: 6px 6px 0 var(--orange);
    transform: translateY(-4px);
}

.quote-mark {
    height: 40px;
    color: var(--orange-deep);
    font-family: Georgia, serif;
    font-size: 56px;
    font-weight: 900;
    line-height: 1;
}

.review-number {
    position: absolute;
    top: 26px;
    right: 26px;
    color: var(--orange-deep);
    font-size: 11px;
    font-weight: 900;
}

.review-card > p {
    flex: 1;
    margin: 13px 0 24px;
    color: #414039;
    font-size: 13px;
    line-height: 1.9;
}

.review-card footer {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 18px;
    border-top: 1px solid #c8bd9f;
}

.review-card footer img {
    width: 43px;
    height: 43px;
    object-fit: cover;
    border: 2px solid var(--ink);
    border-radius: 50%;
}

.review-card footer span {
    display: grid;
    gap: 1px;
}

.review-card footer strong {
    font-size: 13px;
}

.review-card footer small {
    color: var(--muted);
    font-size: 10px;
}

.download-section {
    position: relative;
    overflow: hidden;
    color: var(--ink);
    background: var(--orange);
    border-top: 2px solid var(--ink);
}

.sunburst {
    position: absolute;
    inset: -220px auto auto -130px;
    width: 620px;
    height: 620px;
    opacity: 0.18;
    background: repeating-conic-gradient(var(--ink) 0 5deg, transparent 5deg 14deg);
    border-radius: 50%;
}

.download-shell {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto 210px;
    align-items: center;
    min-height: 270px;
    gap: 44px;
    padding-block: 50px;
}

.download-shell .eyebrow {
    color: var(--ink);
}

.download-shell h2 {
    margin-bottom: 10px;
    font-size: clamp(30px, 4vw, 50px);
    font-weight: 950;
    line-height: 1.15;
    letter-spacing: -0.055em;
}

.download-shell p {
    margin-bottom: 0;
    color: #4b3516;
}

.download-shell .button {
    min-width: 178px;
}

.download-mascot {
    align-self: end;
    height: 205px;
}

.download-mascot > span {
    position: absolute;
    right: 158px;
    top: 45px;
    padding: 5px 9px;
    color: var(--white);
    background: var(--ink);
    border-radius: 7px 7px 0 7px;
    font-size: 10px;
    font-weight: 900;
}

.cat-face {
    position: absolute;
    right: 12px;
    bottom: -74px;
    width: 178px;
    height: 185px;
    background: var(--cream);
    border: 6px solid var(--ink);
    border-radius: 48% 48% 35% 35%;
}

.cat-face::before,
.cat-face::after {
    position: absolute;
    z-index: -1;
    top: -38px;
    width: 70px;
    height: 80px;
    content: "";
    background: var(--cream);
    border: 6px solid var(--ink);
    transform: rotate(45deg);
}

.cat-face::before { left: 5px; }
.cat-face::after { right: 5px; }

.cat-face i {
    position: absolute;
    top: 63px;
    width: 15px;
    height: 20px;
    background: var(--ink);
    border-radius: 50%;
}

.cat-face i:first-child { left: 48px; }
.cat-face i:nth-child(2) { right: 48px; }

.cat-face b {
    position: absolute;
    top: 92px;
    left: 50%;
    width: 18px;
    height: 13px;
    background: var(--orange);
    border: 3px solid var(--ink);
    border-radius: 50%;
    transform: translateX(-50%);
}

.site-footer {
    color: #b8b7b0;
    background: var(--ink);
}

.footer-grid {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 42px;
    min-height: 150px;
}

.brand-footer {
    color: var(--white);
}

.footer-grid nav ul {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px 22px;
}

.footer-grid nav a {
    font-size: 12px;
    font-weight: 700;
}

.footer-grid nav a:hover {
    color: var(--orange);
}

.footer-grid > p {
    margin-bottom: 0;
    font-size: 11px;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 58px;
    padding-block: 15px;
    border-top: 1px solid #3b3b35;
    font-size: 10px;
}

.site-tongji {
    min-width: 1px;
    min-height: 1px;
}

.lightbox {
    position: fixed;
    z-index: 1100;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 70px 24px 28px;
    background: rgba(12, 12, 10, 0.92);
    opacity: 0;
    visibility: hidden;
    transition: opacity 180ms ease, visibility 180ms ease;
}

.lightbox.is-open {
    opacity: 1;
    visibility: visible;
}

.lightbox-stage {
    display: flex;
    justify-content: center;
    max-width: min(94vw, 1100px);
    max-height: calc(100vh - 108px);
}

.lightbox-stage img {
    width: auto;
    max-height: calc(100vh - 108px);
    object-fit: contain;
    background: var(--white);
    border: 4px solid var(--white);
    border-radius: 14px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    padding: 0;
    color: var(--white);
    background: var(--orange);
    border: 2px solid var(--white);
    border-radius: 50%;
    cursor: pointer;
}

.js .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 520ms ease, transform 520ms ease;
}

.js .reveal[data-delay="1"] { transition-delay: 80ms; }
.js .reveal[data-delay="2"] { transition-delay: 150ms; }
.js .reveal[data-delay="3"] { transition-delay: 220ms; }

.js .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1120px) {
    .nav-shell {
        gap: 18px;
    }

    .primary-nav a {
        padding-inline: 8px;
        font-size: 12px;
    }

    .primary-nav a::after {
        right: 8px;
        left: 8px;
    }

    .hero-grid {
        grid-template-columns: minmax(0, 0.9fr) minmax(450px, 1.1fr);
        gap: 24px;
    }

    .phone-front {
        left: 40px;
        width: 270px;
        height: 510px;
    }

    .phone-back {
        width: 245px;
        height: 470px;
    }

    .screen-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .screen-frame {
        aspect-ratio: 5 / 4;
    }

    .discover-layout {
        grid-template-columns: 1fr;
    }

    .genre-grid {
        grid-template-columns: repeat(4, minmax(150px, 1fr));
    }

    .reading-grid {
        grid-template-columns: 0.72fr 0.9fr 1fr;
        gap: 25px;
    }

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

    .feature-grid article {
        min-height: auto;
    }
}

@media (max-width: 991px) {
    html {
        scroll-padding-top: 72px;
    }

    .container {
        width: min(calc(100% - 36px), var(--container));
    }

    .site-header {
        backdrop-filter: none;
    }

    .nav-shell {
        min-height: 66px;
    }

    .brand img {
        width: 42px;
        height: 42px;
    }

    .primary-nav {
        position: absolute;
        top: calc(100% + 1px);
        right: 18px;
        left: 18px;
        display: none;
        margin: 0;
        padding: 12px;
        background: var(--white);
        border: 2px solid var(--ink);
        border-radius: 14px;
        box-shadow: var(--shadow-hard);
    }

    .primary-nav.is-open {
        display: block;
    }

    .primary-nav ul {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 5px;
    }

    .primary-nav a {
        padding: 13px 14px;
        border-radius: 8px;
        font-size: 14px;
    }

    .primary-nav a::after {
        display: none;
    }

    .primary-nav a:hover,
    .primary-nav a.is-active {
        background: var(--cream);
    }

    .nav-actions {
        margin-left: auto;
    }

    .menu-toggle {
        display: grid;
        place-items: center;
    }

    .hero {
        min-height: auto;
        background: linear-gradient(155deg, var(--cream) 0 60%, var(--orange) 60% 100%);
    }

    .hero-grid {
        grid-template-columns: 1fr 1fr;
        min-height: 680px;
        padding-block: 64px 74px;
    }

    .hero h1 {
        font-size: clamp(45px, 7vw, 68px);
    }

    .hero-visual {
        min-height: 510px;
    }

    .phone-front {
        left: 5px;
        width: 238px;
        height: 462px;
    }

    .phone-back {
        right: -35px;
        width: 220px;
        height: 420px;
    }

    .mascot-card {
        right: -25px;
        width: 120px;
        height: 102px;
    }

    .section {
        padding-block: 88px;
    }

    .heading-row {
        gap: 35px;
    }

    .genre-grid {
        overflow-x: auto;
        padding: 0 3px 12px;
        scroll-snap-type: x mandatory;
    }

    .genre-card {
        scroll-snap-align: start;
    }

    .reading-grid {
        grid-template-columns: 0.75fr 1.25fr;
    }

    .reading-copy {
        grid-column: 1 / -1;
        max-width: 620px;
    }

    .version-track {
        grid-template-columns: 1fr;
    }

    .version-track li {
        min-height: auto;
        border-right: 0;
        border-bottom: 1px solid var(--ink);
    }

    .version-track li:last-child {
        border-bottom: 0;
    }

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

    .device-panel,
    .faq-panel {
        padding: 72px 36px;
    }

    .device-panel {
        border-right: 0;
        border-bottom: 2px solid var(--ink);
    }

    .review-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .download-mascot {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        justify-items: center;
        gap: 26px;
        padding-block: 40px;
        text-align: center;
    }
}

@media (max-width: 767px) {
    .container {
        width: min(calc(100% - 28px), var(--container));
    }

    .brand {
        gap: 8px;
        font-size: 17px;
    }

    .brand img {
        width: 38px;
        height: 38px;
    }

    .nav-actions .button-download {
        display: none;
    }

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

    .hero::after {
        width: 160px;
        height: 160px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 36px;
        padding-block: 52px 76px;
    }

    .hero-copy {
        max-width: none;
    }

    .hero h1 {
        font-size: clamp(45px, 15vw, 68px);
    }

    .hero h2 {
        font-size: clamp(27px, 8.5vw, 38px);
    }

    .hero-buttons {
        align-items: stretch;
        flex-direction: column;
        gap: 18px;
    }

    .hero-buttons .button {
        width: 100%;
    }

    .text-link {
        align-self: flex-start;
    }

    .hero-points {
        margin-top: 28px;
    }

    .hero-visual {
        min-height: 500px;
    }

    .phone-front {
        left: 8%;
        width: 245px;
        height: 460px;
    }

    .phone-back {
        right: 3%;
        width: 220px;
        height: 410px;
    }

    .mascot-card {
        right: 1%;
        bottom: -18px;
    }

    .paw-mark {
        left: -8px;
        bottom: 0;
        transform: scale(0.8) rotate(-20deg);
    }

    .section {
        padding-block: 72px;
    }

    .heading-row {
        grid-template-columns: 1fr;
        gap: 18px;
        margin-bottom: 34px;
    }

    .section-heading h2,
    .discover-heading h2,
    .reading-copy h2,
    .device-panel h2,
    .faq-panel h2 {
        font-size: clamp(34px, 11vw, 46px);
    }

    .screen-grid {
        display: flex;
        overflow-x: auto;
        gap: 14px;
        margin-inline: -14px;
        padding: 4px 14px 18px;
        scroll-padding-left: 14px;
        scroll-snap-type: x mandatory;
    }

    .screen-card {
        min-width: min(82vw, 340px);
        scroll-snap-align: start;
    }

    .screen-frame {
        aspect-ratio: 4 / 5;
    }

    .discover-heading {
        margin-bottom: 32px;
    }

    .discover-layout {
        gap: 30px;
    }

    .genre-grid {
        grid-template-columns: repeat(4, 210px);
    }

    .genre-card {
        min-height: 230px;
    }

    .update-panel {
        padding: 19px;
    }

    .update-list li {
        grid-template-columns: 1fr auto;
        gap: 4px 10px;
    }

    .update-list li span {
        grid-column: 1 / -1;
        grid-row: 2;
    }

    .update-list li em {
        grid-column: 2;
        grid-row: 1;
    }

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

    .reader-device {
        width: min(100%, 440px);
        min-height: 310px;
        margin-inline: auto;
    }

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

    .feature-grid article {
        flex-direction: column;
        min-height: 170px;
    }

    .version-track li {
        grid-template-columns: 46px 1fr;
        padding: 24px 18px;
    }

    .version-track li > span {
        width: 40px;
        height: 40px;
    }

    .device-panel,
    .faq-panel {
        padding: 64px 18px;
    }

    .review-grid {
        display: flex;
        overflow-x: auto;
        gap: 14px;
        margin-inline: -14px;
        padding: 4px 14px 18px;
        scroll-padding-left: 14px;
        scroll-snap-type: x mandatory;
    }

    .review-card {
        min-width: min(86vw, 360px);
        min-height: 350px;
        scroll-snap-align: start;
    }

    .download-shell {
        grid-template-columns: 1fr;
        gap: 26px;
        min-height: 330px;
        padding-block: 58px;
    }

    .download-shell .button {
        width: 100%;
    }

    .footer-grid nav ul {
        gap: 12px 18px;
    }

    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
    }
}

@media (max-width: 479px) {
    .hero-visual {
        min-height: 430px;
    }

    .phone {
        border-width: 6px;
        border-radius: 32px;
    }

    .phone-front {
        left: 2%;
        width: 210px;
        height: 405px;
    }

    .phone-back {
        right: -11%;
        width: 195px;
        height: 360px;
    }

    .mascot-card {
        right: -3%;
        width: 102px;
        height: 86px;
    }

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

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

    .feature-grid article {
        flex-direction: row;
        min-height: auto;
    }

    .device-icons {
        gap: 8px;
    }

    .device-icons .icon {
        width: 34px;
        height: 34px;
    }

    .faq-item button span {
        align-items: flex-start;
    }

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

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

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}