:root {
    --brand: #C94A2F;
    --brand-strong: #E85D3F;
    --gold: #E7B56A;
    --ink: #25262A;
    --ink-deep: #17181C;
    --muted: #6F7178;
    --paper: #F7F5F1;
    --paper-soft: #EEEAE4;
    --white: #FFFFFF;
    --line: rgba(37, 38, 42, .12);
    --line-dark: rgba(255, 255, 255, .13);
    --shadow-sm: 0 8px 22px rgba(23, 24, 28, .08);
    --shadow-md: 0 18px 50px rgba(23, 24, 28, .12);
    --shadow-lg: 0 34px 90px rgba(23, 24, 28, .18);
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 28px;
    --radius-xl: 40px;
    --shell: 1180px;
    --header-height: 78px;
    --ease: cubic-bezier(.2, .8, .2, 1);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    color-scheme: light;
}

body {
    margin: 0;
    min-width: 320px;
    background: var(--paper);
    color: var(--ink);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
    line-height: 1.72;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

body.menu-open {
    overflow: hidden;
}

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

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

button,
input {
    font: inherit;
}

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

button {
    color: inherit;
}

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

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

h1,
h2,
h3 {
    color: var(--ink-deep);
    line-height: 1.22;
    letter-spacing: -.025em;
}

h1 {
    font-size: clamp(2.45rem, 5.5vw, 5.2rem);
    margin-bottom: 24px;
    font-weight: 820;
}

h2 {
    font-size: clamp(1.85rem, 3.3vw, 3.15rem);
    margin-bottom: 18px;
    font-weight: 780;
}

h3 {
    font-size: clamp(1.1rem, 1.8vw, 1.42rem);
    margin-bottom: 12px;
    font-weight: 740;
}

::selection {
    background: var(--gold);
    color: var(--ink-deep);
}

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

.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;
    left: 16px;
    top: 12px;
    z-index: 999;
    padding: 10px 16px;
    border-radius: 999px;
    background: var(--ink-deep);
    color: var(--white);
    transform: translateY(-160%);
    transition: transform .2s ease;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    min-height: var(--header-height);
    background: rgba(247, 245, 241, .92);
    border-bottom: 1px solid rgba(37, 38, 42, .08);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition: box-shadow .2s ease, background-color .2s ease;
}

.site-header.is-scrolled {
    box-shadow: var(--shadow-sm);
    background: rgba(247, 245, 241, .98);
}

.site-header__row {
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 26px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.brand img {
    width: 46px;
    height: 46px;
    object-fit: contain;
    border-radius: 14px;
}

.brand__copy {
    display: grid;
    gap: 1px;
    line-height: 1.22;
}

.brand__copy strong {
    font-size: 1.16rem;
    letter-spacing: .02em;
}

.brand__copy small {
    color: var(--muted);
    font-size: .75rem;
    white-space: nowrap;
}

.primary-nav ul {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.primary-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 9px 13px;
    border-radius: 999px;
    color: #4C4E53;
    font-size: .94rem;
    font-weight: 650;
    transition: background-color .2s ease, color .2s ease, transform .2s ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
    background: var(--paper-soft);
    color: var(--ink-deep);
}

.primary-nav a[aria-current="page"] {
    background: var(--ink-deep);
    color: var(--white);
}

.primary-nav .primary-nav__search {
    border: 1px solid var(--line);
    margin-left: 6px;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--white);
    cursor: pointer;
}

.menu-toggle > span:not(.sr-only) {
    display: block;
    height: 2px;
    margin: 5px 0;
    border-radius: 999px;
    background: var(--ink-deep);
    transition: transform .2s ease, opacity .2s ease;
}

.menu-toggle[aria-expanded="true"] > span:nth-of-type(2) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] > span:nth-of-type(3) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] > span:nth-of-type(4) {
    transform: translateY(-7px) rotate(-45deg);
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 12px 20px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 720;
    line-height: 1.2;
    transition: transform .2s var(--ease), box-shadow .2s ease, background-color .2s ease, border-color .2s ease;
}

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

.button:active {
    transform: translateY(0);
}

.button--primary {
    background: var(--brand-strong);
    color: var(--white);
    box-shadow: 0 12px 28px rgba(232, 93, 63, .22);
}

.button--primary:hover,
.button--primary:focus-visible {
    box-shadow: 0 16px 34px rgba(232, 93, 63, .3);
}

.button--soft {
    background: var(--paper-soft);
    color: var(--ink-deep);
    border-color: rgba(37, 38, 42, .08);
}

.button--ghost {
    border-color: rgba(37, 38, 42, .18);
    color: var(--ink-deep);
    background: transparent;
}

.button--ghost:hover,
.button--ghost:focus-visible {
    border-color: var(--brand);
    color: var(--brand);
}

.eyebrow {
    margin-bottom: 12px;
    color: var(--brand);
    font-size: .8rem;
    font-weight: 800;
    letter-spacing: .14em;
    text-transform: uppercase;
}

.lede {
    max-width: 760px;
    margin-bottom: 30px;
    color: #55575E;
    font-size: clamp(1.05rem, 1.7vw, 1.24rem);
    line-height: 1.85;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--brand);
    font-weight: 740;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
}

.text-link:hover,
.text-link:focus-visible {
    text-decoration: underline;
}

.text-link--light {
    color: var(--gold);
}

.breadcrumbs {
    margin-bottom: 26px;
}

.breadcrumbs ol {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0;
    margin: 0;
    list-style: none;
    color: var(--muted);
    font-size: .86rem;
}

.breadcrumbs li:not(:last-child)::after {
    content: "/";
    margin-left: 8px;
    opacity: .5;
}

.breadcrumbs a:hover,
.breadcrumbs a:focus-visible {
    color: var(--brand);
}

.home-hero {
    position: relative;
    overflow: hidden;
    padding: 58px 0 84px;
    background:
        radial-gradient(circle at 12% 18%, rgba(231, 181, 106, .18), transparent 31%),
        radial-gradient(circle at 88% 20%, rgba(201, 74, 47, .13), transparent 28%),
        var(--paper);
}

.home-hero::after {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    right: -170px;
    bottom: -220px;
    border: 1px solid rgba(201, 74, 47, .13);
    border-radius: 50%;
    box-shadow: 0 0 0 44px rgba(201, 74, 47, .035), 0 0 0 88px rgba(201, 74, 47, .025);
    pointer-events: none;
}

.home-hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(390px, .92fr);
    align-items: center;
    gap: clamp(38px, 6vw, 82px);
}

.home-hero__copy h1 {
    max-width: 760px;
}

.home-hero__visual {
    position: relative;
    margin: 0;
}

.home-hero__visual::before {
    content: "";
    position: absolute;
    inset: 20px -18px -20px 18px;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(23, 24, 28, .11);
    transform: rotate(2.5deg);
    z-index: 0;
}

.home-hero__visual img {
    position: relative;
    z-index: 1;
    width: 100%;
    aspect-ratio: 4 / 3.35;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.home-hero__visual figcaption {
    position: relative;
    z-index: 2;
    width: calc(100% - 46px);
    margin: -26px auto 0;
    padding: 16px 18px;
    border-radius: 16px;
    background: rgba(23, 24, 28, .94);
    color: rgba(255, 255, 255, .84);
    font-size: .9rem;
    box-shadow: var(--shadow-md);
}

.hero-facts {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    padding: 0;
    margin: 34px 0 0;
    list-style: none;
}

.hero-facts li {
    padding: 13px 12px;
    border-top: 1px solid var(--line);
}

.hero-facts strong,
.hero-facts span {
    display: block;
}

.hero-facts strong {
    margin-bottom: 3px;
    color: var(--ink-deep);
}

.hero-facts span {
    color: var(--muted);
    font-size: .79rem;
    line-height: 1.45;
}

.content-section {
    padding: clamp(72px, 9vw, 112px) 0;
}

.content-section--dense {
    padding-top: 88px;
}

.content-section--warm {
    background: var(--paper-soft);
}

.content-section--contrast {
    background: var(--ink-deep);
    color: rgba(255, 255, 255, .82);
}

.content-section--contrast h2,
.content-section--contrast h3 {
    color: var(--white);
}

.content-section--contrast .eyebrow {
    color: var(--gold);
}

.section-heading {
    max-width: 820px;
    margin-bottom: 36px;
}

.section-heading > p:not(.eyebrow) {
    color: var(--muted);
    font-size: 1.02rem;
}

.section-heading--split {
    max-width: none;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, .7fr);
    align-items: end;
    gap: 64px;
}

.section-heading--split > p {
    margin-bottom: 12px;
}

.section-heading--on-dark > p:not(.eyebrow) {
    color: rgba(255, 255, 255, .68);
}

.media-grid {
    display: grid;
    gap: 18px;
}

.media-grid--four {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.media-card {
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .66);
    box-shadow: 0 8px 24px rgba(23, 24, 28, .04);
    transition: transform .25s var(--ease), box-shadow .25s ease, border-color .25s ease;
}

.media-card:hover {
    transform: translateY(-5px);
    border-color: rgba(201, 74, 47, .2);
    box-shadow: var(--shadow-md);
}

.media-card__visual {
    overflow: hidden;
    aspect-ratio: 4 / 2.65;
    background: #DDD8D1;
}

.media-card__visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s var(--ease);
}

.media-card:hover .media-card__visual img {
    transform: scale(1.035);
}

.media-card__body {
    padding: 20px;
}

.media-card__body > p:not(.eyebrow) {
    min-height: 6.3em;
    margin-bottom: 16px;
    color: var(--muted);
    font-size: .92rem;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    padding: 0;
    margin: 0 0 16px;
    list-style: none;
}

.tag-list li {
    padding: 5px 9px;
    border-radius: 999px;
    background: var(--paper-soft);
    color: #5D5F65;
    font-size: .76rem;
    line-height: 1.2;
}

.split-feature {
    display: grid;
    grid-template-columns: minmax(320px, .82fr) minmax(0, 1.18fr);
    align-items: center;
    gap: clamp(42px, 7vw, 90px);
}

.split-feature__visual {
    position: relative;
}

.split-feature__visual::after {
    content: "";
    position: absolute;
    right: -18px;
    bottom: -18px;
    width: 56%;
    height: 52%;
    border-right: 1px solid rgba(231, 181, 106, .38);
    border-bottom: 1px solid rgba(231, 181, 106, .38);
    border-radius: 0 0 28px 0;
}

.split-feature__visual img {
    width: 100%;
    aspect-ratio: 4 / 3.1;
    object-fit: cover;
    border-radius: var(--radius-lg);
    filter: saturate(.92) contrast(1.02);
}

.split-feature__copy > p:not(.eyebrow) {
    max-width: 680px;
    color: rgba(255, 255, 255, .72);
    font-size: 1.04rem;
}

.check-list {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 30px 0 30px;
    list-style: none;
}

.check-list li {
    position: relative;
    padding-left: 28px;
    color: rgba(255, 255, 255, .82);
}

.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .7em;
    width: 12px;
    height: 6px;
    border-left: 2px solid var(--gold);
    border-bottom: 2px solid var(--gold);
    transform: rotate(-45deg);
}

.editorial-layout {
    display: grid;
    grid-template-columns: minmax(310px, .78fr) minmax(0, 1.22fr);
    gap: clamp(38px, 7vw, 86px);
    align-items: start;
}

.editorial-layout__intro {
    position: sticky;
    top: calc(var(--header-height) + 28px);
}

.editorial-layout__intro > p:not(.eyebrow) {
    color: var(--muted);
}

.editorial-layout__intro img {
    width: 100%;
    margin-top: 30px;
    aspect-ratio: 4 / 2.9;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

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

.compact-item {
    display: grid;
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 20px;
    padding: 30px 0;
    border-bottom: 1px solid var(--line);
}

.compact-item__marker {
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--ink-deep);
    color: var(--gold);
    font-size: .82rem;
    font-weight: 800;
}

.compact-item p {
    color: var(--muted);
}

.route-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.route-grid--three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.route-card {
    position: relative;
    min-height: 210px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 7px;
    padding: 24px;
    border: 1px solid rgba(37, 38, 42, .11);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .62);
    overflow: hidden;
    transition: transform .22s var(--ease), box-shadow .22s ease, background-color .22s ease;
}

.route-card::after {
    content: "→";
    position: absolute;
    top: 20px;
    right: 22px;
    font-size: 1.25rem;
    color: var(--brand);
    transition: transform .22s var(--ease);
}

.route-card:hover,
.route-card:focus-visible {
    transform: translateY(-4px);
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.route-card:hover::after,
.route-card:focus-visible::after {
    transform: translateX(4px);
}

.route-card__number {
    position: absolute;
    top: 22px;
    left: 22px;
    color: var(--muted);
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .12em;
}

.route-card strong {
    font-size: 1.22rem;
    color: var(--ink-deep);
}

.route-card > span:last-child {
    color: var(--muted);
    font-size: .88rem;
    line-height: 1.6;
}

.faq-shell {
    max-width: 940px;
}

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

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

.faq-item h3 {
    margin: 0;
}

.faq-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    padding: 24px 0;
    border: 0;
    background: transparent;
    text-align: left;
    font-weight: 740;
    cursor: pointer;
}

.faq-toggle__icon {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--paper-soft);
    color: var(--brand);
    font-size: 1.2rem;
    transition: transform .2s ease;
}

.faq-toggle[aria-expanded="true"] .faq-toggle__icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-width: 760px;
    padding: 0 54px 24px 0;
    color: var(--muted);
}

.inner-hero,
.device-hero,
.search-hero {
    position: relative;
    overflow: hidden;
    padding: clamp(52px, 7vw, 88px) 0 clamp(62px, 8vw, 104px);
}

.inner-hero {
    background: linear-gradient(135deg, #F7F5F1 0%, #EEEAE4 100%);
}

.inner-hero::before,
.device-hero::before,
.search-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 82% 12%, rgba(232, 93, 63, .12), transparent 26%),
        linear-gradient(transparent 97%, rgba(37, 38, 42, .05) 97%);
    background-size: auto, 100% 32px;
}

.inner-hero__grid,
.device-hero__grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr);
    align-items: center;
    gap: clamp(40px, 7vw, 88px);
}

.device-hero__grid--reverse {
    grid-template-columns: minmax(340px, .9fr) minmax(0, 1.1fr);
}

.inner-hero__grid > img,
.device-hero__grid > img,
.device-mock img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.device-mock {
    position: relative;
    width: min(440px, 100%);
    justify-self: end;
    padding: 14px;
    border: 1px solid rgba(37, 38, 42, .12);
    border-radius: 46px;
    background: #202126;
    box-shadow: var(--shadow-lg);
}

.device-mock::before {
    content: "";
    position: absolute;
    z-index: 2;
    top: 23px;
    left: 50%;
    width: 86px;
    height: 20px;
    border-radius: 999px;
    background: #111216;
    transform: translateX(-50%);
}

.device-mock img {
    aspect-ratio: 9 / 15.5;
    border-radius: 34px;
    box-shadow: none;
}

.jump-links {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin-top: 28px;
}

.jump-links a {
    padding: 8px 13px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, .56);
    color: #4F5157;
    font-size: .86rem;
    font-weight: 680;
}

.jump-links a:hover,
.jump-links a:focus-visible {
    border-color: var(--brand);
    color: var(--brand);
}

.watch-section:nth-of-type(even) {
    background: rgba(238, 234, 228, .48);
}

.watch-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.watch-card {
    min-height: 310px;
    display: flex;
    flex-direction: column;
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .66);
    transition: transform .22s var(--ease), border-color .22s ease, box-shadow .22s ease;
}

.watch-card:hover {
    transform: translateY(-4px);
    border-color: rgba(201, 74, 47, .22);
    box-shadow: var(--shadow-sm);
}

.watch-card__index {
    display: inline-flex;
    margin-bottom: auto;
    color: var(--brand);
    font-size: .78rem;
    font-weight: 850;
    letter-spacing: .14em;
}

.watch-card h3 {
    margin-top: 44px;
}

.watch-card p {
    color: var(--muted);
    font-size: .92rem;
}

.watch-card .tag-list {
    margin-top: auto;
    padding-top: 12px;
}

.scenario-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.scenario-card {
    min-height: 220px;
    padding: 24px;
    border: 1px solid var(--line-dark);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .045);
}

.scenario-card p {
    color: rgba(255, 255, 255, .68);
    font-size: .92rem;
}

.next-route {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 42px;
}

.next-route > div:first-child {
    max-width: 760px;
}

.next-route p:not(.eyebrow) {
    color: var(--muted);
}

.official-layout {
    display: grid;
    grid-template-columns: minmax(300px, .8fr) minmax(0, 1.2fr);
    gap: clamp(42px, 7vw, 90px);
    align-items: start;
}

.official-layout__lead {
    position: sticky;
    top: calc(var(--header-height) + 28px);
}

.official-layout__lead p:not(.eyebrow) {
    color: var(--muted);
}

.official-layout__lead img {
    margin-top: 28px;
    border-radius: var(--radius-lg);
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

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

.numbered-item {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 22px;
    padding: 30px 0;
    border-bottom: 1px solid var(--line);
}

.numbered-item > span {
    color: var(--brand);
    font-size: .84rem;
    font-weight: 850;
    letter-spacing: .12em;
}

.numbered-item p {
    color: var(--muted);
}

.domain-panel {
    display: grid;
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 60px;
    align-items: start;
}

.domain-panel > div > p:not(.eyebrow) {
    color: rgba(255, 255, 255, .7);
}

.domain-facts {
    margin: 0;
    border-top: 1px solid var(--line-dark);
}

.domain-facts > div {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 18px;
    padding: 18px 0;
    border-bottom: 1px solid var(--line-dark);
}

.domain-facts dt {
    color: var(--gold);
    font-weight: 760;
}

.domain-facts dd {
    margin: 0;
    color: rgba(255, 255, 255, .82);
    overflow-wrap: anywhere;
}

.feature-grid {
    display: grid;
    gap: 16px;
}

.feature-grid--five {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.feature-card {
    min-height: 320px;
    display: flex;
    flex-direction: column;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .62);
}

.feature-card__icon {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    margin-bottom: 42px;
    border-radius: 50%;
    background: var(--ink-deep);
    color: var(--gold);
    font-size: .76rem;
    font-weight: 800;
}

.feature-card p {
    color: var(--muted);
    font-size: .9rem;
}

.feature-card .tag-list {
    margin-top: auto;
    padding-top: 14px;
}

.mobile-usage {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, .8fr);
    align-items: center;
    gap: clamp(42px, 7vw, 88px);
}

.mobile-usage__copy > p:not(.eyebrow) {
    color: rgba(255, 255, 255, .72);
}

.mobile-usage img {
    width: 100%;
    border-radius: var(--radius-lg);
    aspect-ratio: 4 / 3.1;
    object-fit: cover;
}

.plain-steps {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 28px 0 0;
    list-style: none;
    counter-reset: step;
}

.plain-steps li {
    position: relative;
    padding-left: 42px;
    color: rgba(255, 255, 255, .82);
    counter-increment: step;
}

.plain-steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: .1em;
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(231, 181, 106, .42);
    border-radius: 50%;
    color: var(--gold);
    font-size: .74rem;
    font-weight: 800;
}

.pc-layout {
    display: grid;
    grid-template-columns: minmax(320px, .82fr) minmax(0, 1.18fr);
    gap: clamp(42px, 7vw, 92px);
    align-items: start;
}

.pc-layout__sticky {
    position: sticky;
    top: calc(var(--header-height) + 28px);
}

.pc-layout__sticky p:not(.eyebrow) {
    color: var(--muted);
}

.pc-layout__sticky img {
    margin-top: 28px;
    border-radius: var(--radius-lg);
    aspect-ratio: 4 / 2.8;
    object-fit: cover;
}

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

.pc-feature {
    display: grid;
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 20px;
    padding: 32px 0;
    border-bottom: 1px solid var(--line);
}

.pc-feature > span {
    color: var(--brand);
    font-size: .82rem;
    font-weight: 850;
    letter-spacing: .12em;
}

.pc-feature p {
    color: var(--muted);
}

.keyboard-panel {
    display: grid;
    grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr);
    gap: 60px;
    align-items: start;
}

.keyboard-panel > div:first-child > p:not(.eyebrow) {
    color: rgba(255, 255, 255, .7);
}

.key-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.key-grid > div {
    min-height: 130px;
    padding: 20px;
    border: 1px solid var(--line-dark);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .045);
}

.key-grid span {
    display: block;
    margin-top: 18px;
    color: rgba(255, 255, 255, .7);
    font-size: .88rem;
}

kbd {
    display: inline-flex;
    min-width: 34px;
    min-height: 32px;
    align-items: center;
    justify-content: center;
    padding: 4px 9px;
    border: 1px solid rgba(255, 255, 255, .26);
    border-bottom-width: 3px;
    border-radius: 7px;
    background: rgba(255, 255, 255, .08);
    color: var(--white);
    font-size: .82rem;
    font-family: inherit;
    font-weight: 760;
}

.search-hero {
    background: var(--paper-soft);
}

.search-hero__inner {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.search-hero__inner > p:not(.eyebrow) {
    max-width: 680px;
    color: var(--muted);
}

.search-form {
    max-width: 820px;
    margin-top: 34px;
}

.search-form label {
    display: block;
    margin-bottom: 9px;
    font-size: .86rem;
    font-weight: 720;
}

.search-form__row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
}

.search-form input {
    width: 100%;
    min-height: 50px;
    padding: 12px 16px;
    border: 1px solid rgba(37, 38, 42, .18);
    border-radius: 999px;
    outline: none;
    background: var(--white);
    color: var(--ink);
    transition: border-color .2s ease, box-shadow .2s ease;
}

.search-form input:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 4px rgba(201, 74, 47, .1);
}

.search-results {
    min-height: 460px;
}

.result-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.result-card {
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .64);
}

.result-card > span {
    display: inline-block;
    margin-bottom: 14px;
    color: var(--brand);
    font-size: .76rem;
    font-weight: 800;
    letter-spacing: .08em;
}

.result-card p {
    color: var(--muted);
}

.empty-state {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}

.empty-state img {
    width: min(500px, 100%);
    margin: 0 auto 30px;
    border-radius: var(--radius-lg);
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.empty-state p {
    max-width: 620px;
    margin-inline: auto;
    color: var(--muted);
}

.empty-state .button-row {
    justify-content: center;
    margin-top: 24px;
}

.error-page {
    min-height: 68vh;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding-top: 80px;
    padding-bottom: 80px;
}

.error-page h1 {
    max-width: 740px;
}

.error-page > p:not(.eyebrow) {
    max-width: 680px;
    color: var(--muted);
    font-size: 1.08rem;
}

.error-page .button-row {
    margin-top: 20px;
}

.site-footer {
    padding-top: 68px;
    background: #121317;
    color: rgba(255, 255, 255, .74);
}

.site-footer__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(160px, .65fr) minmax(160px, .65fr);
    gap: 60px;
    padding-bottom: 48px;
}

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

.brand--footer .brand__copy small {
    color: rgba(255, 255, 255, .5);
}

.site-footer__brand > p {
    max-width: 560px;
    margin-top: 20px;
    color: rgba(255, 255, 255, .55);
}

.footer-heading {
    margin-bottom: 18px;
    color: var(--white);
    font-size: .9rem;
    letter-spacing: .08em;
}

.footer-links {
    display: grid;
    gap: 10px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.footer-links a {
    color: rgba(255, 255, 255, .64);
    font-size: .9rem;
}

.footer-links a:hover,
.footer-links a:focus-visible {
    color: var(--gold);
}

.site-footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-top: 18px;
    padding-bottom: 22px;
    border-top: 1px solid rgba(255, 255, 255, .1);
    color: rgba(255, 255, 255, .46);
    font-size: .82rem;
}

.site-footer__bottom p {
    margin: 0;
}

.site-footer__bottom a:hover,
.site-footer__bottom a:focus-visible {
    color: var(--white);
}

.back-to-top {
    position: fixed;
    z-index: 90;
    right: 22px;
    bottom: 22px;
    width: 46px;
    height: 46px;
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 50%;
    background: rgba(23, 24, 28, .92);
    color: var(--white);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: transform .2s var(--ease), opacity .2s ease;
}

.back-to-top:hover,
.back-to-top:focus-visible {
    transform: translateY(-3px);
}

:focus-visible {
    outline: 3px solid rgba(232, 93, 63, .48);
    outline-offset: 3px;
}

@media (max-width: 1120px) {
    .feature-grid--five {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .feature-card:nth-child(4),
    .feature-card:nth-child(5) {
        min-height: 270px;
    }

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

    .media-card__body > p:not(.eyebrow) {
        min-height: auto;
    }
}

@media (max-width: 980px) {
    :root {
        --header-height: 72px;
    }

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

    .menu-toggle {
        display: block;
        position: relative;
        z-index: 112;
    }

    .primary-nav {
        position: fixed;
        z-index: 110;
        inset: 0;
        padding: 104px 24px 34px;
        background: rgba(247, 245, 241, .985);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: opacity .2s ease, visibility .2s ease, transform .2s var(--ease);
    }

    .primary-nav.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .primary-nav ul {
        width: min(680px, 100%);
        margin-inline: auto;
        display: grid;
        gap: 8px;
    }

    .primary-nav a {
        justify-content: flex-start;
        min-height: 54px;
        padding: 12px 18px;
        border-radius: 14px;
        font-size: 1.05rem;
    }

    .primary-nav .primary-nav__search {
        margin: 6px 0 0;
    }

    .home-hero__grid,
    .inner-hero__grid,
    .device-hero__grid,
    .device-hero__grid--reverse,
    .split-feature,
    .editorial-layout,
    .official-layout,
    .domain-panel,
    .mobile-usage,
    .pc-layout,
    .keyboard-panel {
        grid-template-columns: 1fr;
    }

    .home-hero__visual {
        width: min(720px, 100%);
        margin-inline: auto;
    }

    .inner-hero__grid > img,
    .device-hero__grid > img {
        width: min(760px, 100%);
    }

    .device-mock {
        width: min(390px, 88vw);
        justify-self: start;
    }

    .editorial-layout__intro,
    .official-layout__lead,
    .pc-layout__sticky {
        position: static;
    }

    .editorial-layout__intro img,
    .official-layout__lead img,
    .pc-layout__sticky img {
        width: min(720px, 100%);
    }

    .section-heading--split {
        grid-template-columns: 1fr;
        gap: 8px;
    }

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

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

    .route-grid--three {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .next-route {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-footer__grid {
        grid-template-columns: 1.4fr .8fr .8fr;
        gap: 34px;
    }
}

@media (max-width: 760px) {
    h1 {
        font-size: clamp(2.25rem, 11vw, 3.9rem);
    }

    h2 {
        font-size: clamp(1.7rem, 7.8vw, 2.7rem);
    }

    .shell {
        width: min(var(--shell), calc(100% - 28px));
    }

    .brand__copy small {
        display: none;
    }

    .home-hero {
        padding-top: 42px;
    }

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

    .content-section {
        padding: 70px 0;
    }

    .media-grid--four,
    .watch-grid,
    .scenario-grid,
    .route-grid,
    .route-grid--three,
    .feature-grid--five,
    .result-list,
    .key-grid {
        grid-template-columns: 1fr;
    }

    .watch-card,
    .feature-card {
        min-height: auto;
    }

    .watch-card__index,
    .feature-card__icon {
        margin-bottom: 28px;
    }

    .watch-card h3 {
        margin-top: 0;
    }

    .compact-item,
    .numbered-item,
    .pc-feature {
        grid-template-columns: 46px minmax(0, 1fr);
        gap: 14px;
    }

    .compact-item__marker {
        width: 40px;
        height: 40px;
    }

    .domain-facts > div {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .search-form__row {
        grid-template-columns: 1fr;
    }

    .site-footer__grid {
        grid-template-columns: 1fr 1fr;
    }

    .site-footer__brand {
        grid-column: 1 / -1;
    }

    .site-footer__bottom {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 520px) {
    .shell {
        width: min(var(--shell), calc(100% - 22px));
    }

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

    .brand__copy strong {
        font-size: 1.03rem;
    }

    .button-row {
        align-items: stretch;
    }

    .button-row .button {
        flex: 1 1 100%;
    }

    .home-hero__visual::before {
        inset: 12px -8px -12px 8px;
    }

    .home-hero__visual img,
    .inner-hero__grid > img,
    .device-hero__grid > img {
        border-radius: 24px;
    }

    .route-card {
        min-height: 180px;
    }

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

    .jump-links a {
        text-align: center;
    }

    .faq-toggle {
        padding: 21px 0;
    }

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

    .site-footer__grid {
        grid-template-columns: 1fr;
    }

    .site-footer__brand {
        grid-column: auto;
    }
}

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

    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}

@media print {
    .site-header,
    .site-footer,
    .back-to-top,
    .button-row,
    .jump-links {
        display: none !important;
    }

    body {
        background: #fff;
        color: #000;
    }

    .content-section,
    .home-hero,
    .inner-hero,
    .device-hero,
    .search-hero {
        padding: 24px 0;
        background: #fff !important;
        color: #000 !important;
    }

    h1,
    h2,
    h3,
    p,
    li {
        color: #000 !important;
    }

    a {
        text-decoration: underline;
    }

    img {
        max-width: 60%;
        box-shadow: none !important;
    }
}