:root {
    --rt-bg: #080b12;
    --rt-bg-soft: #0b1019;
    --rt-surface: #101722;
    --rt-surface-strong: #141d2a;
    --rt-line: rgba(151, 177, 207, .18);
    --rt-line-strong: rgba(151, 177, 207, .30);
    --rt-text: #f4f7fa;
    --rt-muted: #a1afbf;
    --rt-accent: #65c9d9;
    --rt-accent-soft: rgba(101, 201, 217, .11);
    --rt-purple: #9384d8;
    --rt-green: #78d3a7;
    --rt-shadow: 0 28px 70px rgba(0, 0, 0, .24);
    --rt-content-width: 1280px;
}

html[data-home-theme="dark"] {
    color-scheme: dark;
}

html[data-home-theme="light"] {
    color-scheme: light;
    --rt-bg: #cbd6e2;
    --rt-bg-soft: #c3d0dc;
    --rt-surface: #dbe4eb;
    --rt-surface-strong: #e2e9ef;
    --rt-line: rgba(34, 57, 79, .18);
    --rt-line-strong: rgba(34, 57, 79, .28);
    --rt-text: #14283b;
    --rt-muted: #53687d;
    --rt-accent: #087b91;
    --rt-accent-soft: rgba(8, 123, 145, .10);
    --rt-purple: #6555a4;
    --rt-green: #28785a;
    --rt-shadow: 0 25px 60px rgba(35, 55, 74, .14);
}

html {
    scroll-behavior: smooth;
}

.public-home {
    margin: 0;
    overflow-x: hidden;
    color: var(--rt-text);
    background: var(--rt-bg);
    font-family: Inter, "PingFang SC", "Microsoft YaHei", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
}

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

.public-home a {
    color: inherit;
    text-decoration: none;
}

.rt-wrap {
    width: min(var(--rt-content-width), calc(100% - 48px));
    margin: 0 auto;
}

.rt-nav {
    position: absolute;
    z-index: 50;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    height: 80px;
    align-items: center;
    justify-content: space-between;
    padding: 0 max(24px, calc((100vw - var(--rt-content-width)) / 2));
    border-bottom: 1px solid var(--rt-line);
    background: rgba(8, 11, 18, .68);
    backdrop-filter: blur(18px);
}

html[data-home-theme="light"] .rt-nav {
    background: rgba(198, 211, 223, .86);
    box-shadow: 0 10px 30px rgba(35, 55, 74, .08);
}

.rt-brand {
    display: flex;
    align-items: center;
    gap: 11px;
    font-size: 14px;
    font-weight: 900;
    letter-spacing: .11em;
}

.rt-brand img {
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(53, 119, 152, .18);
}

.rt-brand > span {
    display: grid;
    gap: 2px;
}

.rt-brand small {
    color: var(--rt-muted);
    font-size: 8px;
    letter-spacing: .16em;
}

.rt-nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
    color: var(--rt-muted);
    font-size: 13px;
    font-weight: 750;
}

.rt-nav-links > a:hover {
    color: var(--rt-text);
}

.rt-nav .language-select {
    height: 36px;
    padding: 0 29px 0 10px;
    border: 1px solid var(--rt-line);
    border-radius: 8px;
    color: var(--rt-text);
    background: var(--rt-surface);
    font-weight: 750;
}

.rt-login {
    padding: 10px 15px;
    border: 1px solid rgba(101, 201, 217, .34);
    border-radius: 8px;
    color: var(--rt-text) !important;
    background: var(--rt-accent-soft);
}

.rt-theme-toggle {
    display: inline-flex;
    min-height: 38px;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    border: 1px solid var(--rt-line);
    border-radius: 9px;
    color: var(--rt-text);
    background: var(--rt-surface);
    cursor: pointer;
}

.rt-theme-toggle svg {
    width: 16px;
    height: 16px;
    flex: none;
}

.rt-theme-copy {
    display: grid;
    gap: 1px;
    text-align: left;
}

.rt-theme-copy small {
    color: var(--rt-muted);
    font-size: 8px;
    line-height: 1;
}

.rt-theme-copy strong {
    font-size: 10px;
    line-height: 1.15;
}

html[data-home-theme="dark"] .rt-theme-icon-sun,
html[data-home-theme="light"] .rt-theme-icon-moon {
    display: none;
}

.rt-hero {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--rt-line);
    background:
        radial-gradient(circle at 18% 28%, rgba(101, 201, 217, .10), transparent 29%),
        radial-gradient(circle at 84% 17%, rgba(147, 132, 216, .12), transparent 28%),
        linear-gradient(180deg, #090d15 0, #0b1019 100%);
}

.rt-hero::after {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(151, 177, 207, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(151, 177, 207, .035) 1px, transparent 1px);
    background-size: 68px 68px;
    mask-image: linear-gradient(to bottom, #000, transparent 90%);
    content: "";
    pointer-events: none;
}

html[data-home-theme="light"] .rt-hero {
    background:
        radial-gradient(circle at 18% 28%, rgba(8, 123, 145, .11), transparent 30%),
        radial-gradient(circle at 84% 17%, rgba(101, 85, 164, .12), transparent 29%),
        linear-gradient(180deg, #d4dee7 0, #c8d4df 100%);
}

html[data-home-theme="light"] .rt-hero::after {
    background-image:
        linear-gradient(rgba(35, 58, 80, .055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(35, 58, 80, .055) 1px, transparent 1px);
}

.rt-hero-layout {
    position: relative;
    z-index: 1;
    display: grid;
    min-height: 700px;
    grid-template-columns: minmax(0, .92fr) minmax(520px, 1.08fr);
    gap: 64px;
    align-items: center;
    padding: 122px 0 44px;
}

.rt-eyebrow,
.rt-section-intro > span,
.rt-capability-bridge > div > span,
.rt-contact-copy > span {
    margin: 0;
    color: var(--rt-accent);
    font-size: 10px;
    font-weight: 900;
    letter-spacing: .15em;
}

.rt-hero h1 {
    max-width: 720px;
    margin: 22px 0 22px;
    font-size: clamp(52px, 5.2vw, 72px);
    font-weight: 920;
    line-height: 1.04;
    letter-spacing: -.055em;
}

.rt-hero h1 span {
    display: block;
}

.rt-hero h1 span:last-child {
    background: linear-gradient(100deg, #8ce0ea, #9eb4ea 55%, #b6a5e7);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

html[data-home-theme="light"] .rt-hero h1 span:last-child {
    background: linear-gradient(100deg, #0a7185, #315fae 55%, #6555a4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.rt-hero-lead {
    max-width: 680px;
    margin: 0;
    color: var(--rt-muted);
    font-size: 17px;
    line-height: 1.85;
}

.rt-actions,
.rt-bridge-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 30px;
}

.rt-primary,
.rt-secondary {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 0 17px;
    border: 1px solid var(--rt-line);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 850;
}

.rt-primary {
    border-color: transparent;
    color: #071419 !important;
    background: linear-gradient(100deg, #72d9e7, #8caee4 58%, #a998df);
    box-shadow: 0 12px 30px rgba(84, 166, 190, .16);
}

html[data-home-theme="light"] .rt-primary {
    color: #f7fbfd !important;
    background: linear-gradient(100deg, #087b91, #3b68a8 58%, #6555a4);
    box-shadow: 0 12px 28px rgba(37, 75, 101, .18);
}

.rt-secondary {
    color: var(--rt-text);
    background: rgba(16, 23, 34, .72);
}

html[data-home-theme="light"] .rt-secondary {
    background: rgba(224, 233, 240, .72);
}

.rt-hero-proof {
    display: grid;
    max-width: 560px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin-top: 38px;
}

.rt-hero-proof div {
    padding: 13px 14px;
    border: 1px solid var(--rt-line);
    border-radius: 9px;
    background: rgba(16, 23, 34, .58);
}

html[data-home-theme="light"] .rt-hero-proof div {
    background: rgba(221, 230, 238, .62);
}

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

.rt-hero-proof strong {
    font-size: 21px;
}

.rt-hero-proof span {
    margin-top: 4px;
    color: var(--rt-muted);
    font-size: 10px;
}

.rt-hero-visual {
    position: relative;
    min-height: 530px;
    margin: 0;
    border: 1px solid var(--rt-line-strong);
    border-radius: 22px;
    background: #101722;
    box-shadow: var(--rt-shadow);
    overflow: hidden;
}

.rt-hero-visual::after {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(7, 10, 16, .02) 42%, rgba(7, 10, 16, .88) 100%);
    content: "";
    pointer-events: none;
}

.rt-hero-visual img {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 530px;
    object-fit: cover;
    object-position: 50% 49%;
}

html[data-home-theme="light"] .rt-hero-visual img {
    filter: saturate(.88) contrast(.96) brightness(.90);
}

.rt-hero-visual figcaption {
    position: absolute;
    z-index: 2;
    right: 30px;
    bottom: 28px;
    left: 30px;
    display: grid;
    gap: 7px;
    color: #f8fafc;
}

.rt-hero-visual figcaption span {
    color: #8ce0ea;
    font-size: 9px;
    font-weight: 900;
    letter-spacing: .14em;
}

.rt-hero-visual figcaption b {
    font-size: 29px;
    line-height: 1.15;
    letter-spacing: -.025em;
}

.rt-hero-visual figcaption p {
    max-width: 560px;
    margin: 0;
    color: #c3ced9;
    font-size: 13px;
    line-height: 1.65;
}

.rt-platform-showcase {
    position: relative;
    z-index: 2;
    margin-bottom: 68px;
    padding: 30px 32px 24px;
    border: 1px solid var(--rt-line-strong);
    border-radius: 20px;
    background: linear-gradient(145deg, rgba(20, 29, 42, .96), rgba(13, 19, 29, .94));
    box-shadow: var(--rt-shadow);
}

html[data-home-theme="light"] .rt-platform-showcase {
    background: linear-gradient(145deg, rgba(226, 234, 241, .98), rgba(207, 219, 228, .96));
}

.rt-platform-showcase > header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 36px;
    align-items: start;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--rt-line);
}

.rt-platform-showcase > header span {
    color: var(--rt-accent);
    font-size: 10px;
    font-weight: 900;
    letter-spacing: .15em;
}

.rt-platform-showcase h2 {
    margin: 10px 0 8px;
    font-size: clamp(26px, 2.8vw, 36px);
    line-height: 1.18;
    letter-spacing: -.03em;
}

.rt-platform-showcase > header p {
    max-width: 820px;
    margin: 0;
    color: var(--rt-muted);
    font-size: 14px;
    line-height: 1.75;
}

.rt-platform-showcase > header > strong {
    display: grid;
    min-width: 90px;
    gap: 5px;
    color: var(--rt-text);
    text-align: right;
}

.rt-platform-showcase > header > strong b {
    font-size: 44px;
    line-height: .9;
}

.rt-platform-showcase > header > strong small {
    color: var(--rt-muted);
    font-size: 10px;
}

.rt-platform-rows {
    display: grid;
}

.rt-platform-rows > section {
    display: grid;
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 22px;
    align-items: center;
    padding: 17px 0;
    border-bottom: 1px solid var(--rt-line);
}

.rt-platform-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.rt-platform-label b {
    font-size: 13px;
}

.rt-platform-label span {
    display: grid;
    width: 27px;
    height: 27px;
    place-items: center;
    border-radius: 7px;
    color: var(--rt-accent);
    background: var(--rt-accent-soft);
    font-size: 12px;
    font-weight: 900;
}

.rt-platform-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.rt-platform-list > span {
    padding: 8px 10px;
    border: 1px solid var(--rt-line);
    border-radius: 7px;
    color: var(--rt-text);
    background: rgba(7, 11, 18, .42);
    font-size: 12px;
    font-weight: 780;
}

html[data-home-theme="light"] .rt-platform-list > span {
    background: rgba(234, 240, 245, .72);
}

.rt-platform-showcase > a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
    color: var(--rt-accent);
    font-size: 13px;
    font-weight: 850;
}

.rt-market-card {
    padding: 26px;
    border: 1px solid var(--rt-line-strong);
    border-radius: 18px;
    background: linear-gradient(145deg, rgba(20, 29, 42, .94), rgba(13, 19, 29, .92));
    box-shadow: var(--rt-shadow);
}

html[data-home-theme="light"] .rt-market-card {
    background: linear-gradient(145deg, rgba(225, 233, 240, .96), rgba(204, 216, 226, .94));
}

.rt-market-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
}

.rt-market-card-head span {
    color: var(--rt-accent);
    font-size: 9px;
    font-weight: 900;
    letter-spacing: .14em;
}

.rt-market-card-head b {
    color: var(--rt-text);
    font-size: 42px;
    line-height: .85;
}

.rt-market-card h2 {
    max-width: 360px;
    margin: 17px 0 10px;
    font-size: 28px;
    line-height: 1.2;
    letter-spacing: -.025em;
}

.rt-market-card > p {
    margin: 0;
    color: var(--rt-muted);
    font-size: 13px;
    line-height: 1.75;
}

.rt-platform-groups {
    display: grid;
    gap: 10px;
    margin-top: 24px;
}

.rt-platform-groups section {
    padding: 15px;
    border: 1px solid var(--rt-line);
    border-radius: 11px;
    background: rgba(7, 11, 18, .36);
}

html[data-home-theme="light"] .rt-platform-groups section {
    background: rgba(220, 230, 238, .72);
}

.rt-platform-groups header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 11px;
}

.rt-platform-groups header b {
    font-size: 12px;
}

.rt-platform-groups header span {
    color: var(--rt-accent);
    font-size: 12px;
    font-weight: 900;
}

.rt-platform-groups section > div {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.rt-platform-groups section > div > span {
    padding: 6px 8px;
    border: 1px solid var(--rt-line);
    border-radius: 6px;
    color: var(--rt-muted);
    background: rgba(15, 22, 33, .60);
    font-size: 9px;
    font-weight: 760;
}

html[data-home-theme="light"] .rt-platform-groups section > div > span {
    background: rgba(232, 238, 243, .72);
}

.rt-market-card > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 18px;
    color: var(--rt-accent);
    font-size: 12px;
    font-weight: 850;
}

.rt-scenarios,
.rt-access,
.rt-contact {
    position: relative;
    padding: 96px 0;
    border-top: 1px solid var(--rt-line);
    background: var(--rt-bg);
}

.rt-access {
    background: var(--rt-bg-soft);
}

.rt-section-intro {
    max-width: 820px;
    margin-bottom: 38px;
}

.rt-section-intro-scenarios {
    max-width: none;
}

html[lang="zh-CN"] .rt-section-intro-scenarios h2 {
    white-space: nowrap;
}

.rt-section-intro h2,
.rt-capability-bridge h2,
.rt-contact-copy h2 {
    margin: 12px 0 0;
    font-size: clamp(36px, 4.1vw, 54px);
    line-height: 1.12;
    letter-spacing: -.04em;
}

.rt-section-intro > p,
.rt-capability-bridge p,
.rt-contact-copy > p:not(.rt-contact-privacy) {
    max-width: 720px;
    margin: 15px 0 0;
    color: var(--rt-muted);
    font-size: 15px;
    line-height: 1.8;
}

.rt-story-list {
    display: grid;
    gap: 24px;
}

.rt-story {
    display: grid;
    min-height: 430px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border: 1px solid var(--rt-line);
    border-radius: 20px;
    background: var(--rt-surface);
    box-shadow: var(--rt-shadow);
    overflow: hidden;
}

.rt-story:nth-child(even) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rt-story:nth-child(even) figure {
    grid-column: 2;
}

.rt-story:nth-child(even) .rt-story-copy {
    grid-row: 1;
    grid-column: 1;
}

.rt-story figure {
    position: relative;
    min-height: 430px;
    margin: 0;
    background: #17212b;
    overflow: hidden;
}

.rt-story figure::after,
.rt-access-scene::after {
    position: absolute;
    inset: 0;
    border: 1px solid rgba(255, 255, 255, .05);
    background: linear-gradient(180deg, rgba(8, 12, 18, 0), rgba(8, 12, 18, .20));
    content: "";
    pointer-events: none;
}

.rt-story img,
.rt-access-scene img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.rt-story-research img {
    object-position: 50% 44%;
}

.rt-story-competition img {
    object-position: center;
}

.rt-story-voice img {
    object-position: 50% 49%;
}

html[data-home-theme="light"] .rt-story img,
html[data-home-theme="light"] .rt-access-scene img {
    filter: saturate(.88) contrast(.96) brightness(.92);
}

.rt-story-copy {
    display: flex;
    justify-content: center;
    flex-direction: column;
    padding: clamp(38px, 4.2vw, 56px);
}

.rt-story-copy > span {
    color: var(--rt-accent);
    font-size: 9px;
    font-weight: 900;
    letter-spacing: .14em;
}

.rt-story-copy h3 {
    margin: 18px 0 14px;
    font-size: clamp(28px, 3vw, 40px);
    line-height: 1.16;
    letter-spacing: -.035em;
}

.rt-story-copy > p {
    margin: 0;
    color: var(--rt-muted);
    font-size: 15px;
    line-height: 1.85;
}

.rt-story-copy ul {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
}

.rt-story-copy li {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 13px;
    border: 1px solid var(--rt-line);
    border-radius: 999px;
    color: var(--rt-text);
    background: var(--rt-accent-soft);
    font-size: 13px;
    font-weight: 800;
}

.rt-story-copy li i,
.rt-shared-rail span i,
.rt-contact-privacy i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--rt-green);
    box-shadow: 0 0 10px rgba(120, 211, 167, .45);
}

.rt-capability-bridge {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 28px;
    align-items: end;
    margin-top: 18px;
    padding: 34px 36px;
    border: 1px solid var(--rt-line);
    border-radius: 17px;
    background: linear-gradient(120deg, var(--rt-surface-strong), var(--rt-surface));
}

.rt-capability-bridge h2 {
    max-width: none;
    font-size: clamp(28px, 2.7vw, 36px);
}

.rt-capability-bridge h2 > span {
    display: inline;
    white-space: nowrap;
}

.rt-capability-bridge p {
    font-size: 13px;
}

.rt-bridge-actions {
    margin: 0;
}

.rt-section-intro-compact {
    max-width: 720px;
}

.rt-access-layout {
    display: grid;
    grid-template-columns: minmax(300px, .7fr) minmax(0, 1.3fr);
    gap: 14px;
    align-items: stretch;
}

.rt-access-scene {
    position: relative;
    min-height: 320px;
    margin: 0;
    border: 1px solid var(--rt-line);
    border-radius: 16px;
    background: #17212b;
    box-shadow: var(--rt-shadow);
    overflow: hidden;
}

.rt-access-scene img {
    object-position: 50% 48%;
}

.rt-access-scene::after {
    background: linear-gradient(180deg, rgba(7, 10, 16, .04) 35%, rgba(7, 10, 16, .84) 100%);
}

.rt-access-scene figcaption {
    position: absolute;
    z-index: 2;
    right: 22px;
    bottom: 22px;
    left: 22px;
    display: grid;
    gap: 6px;
    color: #f7f9fc;
}

.rt-access-scene figcaption span {
    color: #8cd9e4;
    font-size: 8px;
    font-weight: 900;
    letter-spacing: .13em;
}

.rt-access-scene figcaption b {
    font-size: 22px;
    line-height: 1.2;
}

.rt-access-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.rt-access-card {
    display: flex;
    min-width: 0;
    min-height: 320px;
    flex-direction: column;
    padding: 24px;
    border: 1px solid var(--rt-line);
    border-radius: 16px;
    background: var(--rt-surface);
}

.rt-access-mcp {
    border-top-color: rgba(101, 201, 217, .56);
}

.rt-access-api {
    border-top-color: rgba(147, 132, 216, .62);
}

.rt-access-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.rt-access-card-head span {
    padding: 6px 9px;
    border: 1px solid rgba(101, 201, 217, .32);
    border-radius: 6px;
    color: var(--rt-accent);
    background: var(--rt-accent-soft);
    font: 850 10px ui-monospace, monospace;
}

.rt-access-api .rt-access-card-head span {
    border-color: rgba(147, 132, 216, .36);
    color: var(--rt-purple);
    background: rgba(147, 132, 216, .10);
}

.rt-access-card-head small {
    color: var(--rt-muted);
    font-size: 8px;
    font-weight: 850;
    letter-spacing: .13em;
}

.rt-access-card h3 {
    margin: 22px 0 10px;
    font-size: 23px;
    line-height: 1.25;
    letter-spacing: -.025em;
}

.rt-access-card > p {
    margin: 0;
    color: var(--rt-muted);
    font-size: 12px;
    line-height: 1.75;
}

.rt-access-card ul {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 17px 0 0;
    padding: 0;
    list-style: none;
}

.rt-access-card li {
    padding: 6px 8px;
    border: 1px solid var(--rt-line);
    border-radius: 6px;
    color: var(--rt-muted);
    font-size: 9px;
}

.rt-access-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
    margin-top: auto;
    padding-top: 20px;
    font-size: 11px;
    font-weight: 820;
}

.rt-access-actions a:first-child {
    color: var(--rt-accent);
}

.rt-access-api .rt-access-actions a:first-child {
    color: var(--rt-purple);
}

.rt-access-actions a:last-child {
    color: var(--rt-muted);
}

.rt-shared-rail {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 28px;
    align-items: center;
    margin-top: 12px;
    padding: 15px 18px;
    border: 1px solid var(--rt-line);
    border-radius: 12px;
    background: var(--rt-surface);
}

.rt-shared-rail > b {
    font-size: 11px;
}

.rt-shared-rail > div {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.rt-shared-rail span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--rt-muted);
    font-size: 10px;
}

.rt-contact {
    padding: 82px 0;
    background: var(--rt-bg);
}

.rt-contact-shell {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 270px;
    gap: 64px;
    align-items: center;
    padding: 48px;
    border: 1px solid var(--rt-line);
    border-radius: 20px;
    background: linear-gradient(130deg, var(--rt-surface), var(--rt-bg-soft));
    box-shadow: var(--rt-shadow);
}

.rt-contact-services {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin-top: 26px;
}

.rt-contact-services > div {
    display: grid;
    grid-template-columns: 26px 1fr;
    gap: 9px;
    align-items: center;
    padding: 13px;
    border: 1px solid var(--rt-line);
    border-radius: 9px;
    background: rgba(12, 18, 27, .34);
}

html[data-home-theme="light"] .rt-contact-services > div {
    background: rgba(220, 230, 238, .65);
}

.rt-contact-services i {
    color: var(--rt-accent);
    font: 850 9px ui-monospace, monospace;
    font-style: normal;
}

.rt-contact-services b,
.rt-contact-services small {
    display: block;
}

.rt-contact-services b {
    font-size: 11px;
}

.rt-contact-services small {
    margin-top: 4px;
    color: var(--rt-muted);
    font-size: 9px;
}

.rt-contact-privacy {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 17px 0 0;
    color: var(--rt-muted);
    font-size: 10px;
}

.rt-wecom-card {
    padding: 13px;
    border: 1px solid var(--rt-line-strong);
    border-radius: 16px;
    background: var(--rt-surface-strong);
}

.rt-wecom-card-head {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 2px 2px 11px;
}

.rt-wecom-card-head > span {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border-radius: 8px;
    color: var(--rt-accent);
    background: var(--rt-accent-soft);
    font-size: 10px;
    font-weight: 900;
}

.rt-wecom-card-head small,
.rt-wecom-card-head b {
    display: block;
}

.rt-wecom-card-head small {
    color: var(--rt-muted);
    font-size: 8px;
}

.rt-wecom-card-head b {
    margin-top: 3px;
    font-size: 11px;
}

.rt-qr-frame {
    padding: 8px;
    border-radius: 11px;
    background: #fff;
}

.rt-qr-frame img {
    display: block;
    width: 100%;
    height: auto;
}

.rt-wecom-card > p {
    margin: 10px 0 1px;
    color: var(--rt-muted);
    font-size: 9px;
    text-align: center;
}

.rt-footer {
    padding: 30px 0;
    border-top: 1px solid var(--rt-line);
    background: #070a10;
}

html[data-home-theme="light"] .rt-footer {
    background: #b8c7d4;
}

.rt-footer > .rt-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.rt-footer > .rt-wrap > div {
    color: var(--rt-muted);
    font-size: 10px;
    text-align: right;
}

.rt-footer p {
    margin: 0 0 5px;
}

.public-home,
.rt-nav,
.rt-hero,
.rt-market-card,
.rt-hero-visual,
.rt-platform-showcase,
.rt-story,
.rt-access,
.rt-access-card,
.rt-capability-bridge,
.rt-contact,
.rt-contact-shell,
.rt-wecom-card,
.rt-footer {
    transition: background-color .25s ease, border-color .25s ease, color .25s ease, box-shadow .25s ease;
}

@media (max-width: 1080px) {
    .rt-nav-links > a:not(.rt-login) {
        display: none;
    }

    .rt-hero-layout {
        min-height: auto;
        grid-template-columns: 1fr;
        gap: 42px;
        padding: 132px 0 44px;
    }

    .rt-market-card,
    .rt-hero-visual {
        width: min(100%, 760px);
        justify-self: center;
    }

    .rt-platform-showcase > header {
        grid-template-columns: 1fr auto;
    }

    .rt-story,
    .rt-story:nth-child(even) {
        grid-template-columns: 1fr;
    }

    .rt-story:nth-child(even) figure,
    .rt-story:nth-child(even) .rt-story-copy {
        grid-row: auto;
        grid-column: auto;
    }

    .rt-story figure {
        min-height: 470px;
    }

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

    .rt-access-scene {
        min-height: 280px;
    }

    .rt-capability-bridge {
        grid-template-columns: 1fr;
        gap: 24px;
        align-items: start;
    }

    .rt-capability-bridge h2 > span {
        display: block;
    }

    .rt-bridge-actions {
        margin: 0;
    }
}

@media (max-width: 760px) {
    .rt-wrap {
        width: min(100% - 28px, var(--rt-content-width));
    }

    .rt-nav {
        height: 70px;
        padding: 0 14px;
    }

    .rt-nav-links {
        gap: 7px;
    }

    .rt-theme-copy,
    .rt-brand small {
        display: none;
    }

    .rt-theme-toggle {
        width: 36px;
        justify-content: center;
        padding: 0;
    }

    .rt-nav .language-select {
        width: 82px;
    }

    .rt-login {
        padding: 9px 10px;
        white-space: nowrap;
    }

    .rt-hero-layout {
        padding-top: 108px;
    }

    .rt-hero h1 {
        font-size: 46px;
    }

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

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

    .rt-hero-proof div:last-child {
        grid-column: 1 / -1;
    }

    .rt-market-card,
    .rt-platform-showcase {
        padding: 21px;
    }

    .rt-hero-visual,
    .rt-hero-visual img {
        min-height: 430px;
    }

    .rt-hero-visual figcaption {
        right: 22px;
        bottom: 22px;
        left: 22px;
    }

    .rt-hero-visual figcaption b {
        font-size: 24px;
    }

    .rt-platform-showcase {
        margin-bottom: 52px;
    }

    .rt-platform-showcase > header {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .rt-platform-showcase > header > strong {
        grid-template-columns: auto auto;
        min-width: 0;
        align-items: end;
        justify-content: start;
        text-align: left;
    }

    .rt-platform-rows > section {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .rt-platform-label {
        justify-content: flex-start;
    }

    .rt-scenarios,
    .rt-access,
    .rt-contact {
        padding: 72px 0;
    }

    .rt-section-intro h2,
    .rt-contact-copy h2 {
        font-size: 36px;
    }

    html[lang="zh-CN"] .rt-section-intro-scenarios h2 {
        white-space: normal;
    }

    .rt-story figure {
        min-height: 340px;
    }

    .rt-story-copy {
        padding: 30px 24px 34px;
    }

    .rt-capability-bridge {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 28px 24px;
    }

    .rt-bridge-actions {
        margin: 0;
    }

    .rt-access-grid {
        grid-template-columns: 1fr;
    }

    .rt-access-card {
        min-height: 280px;
    }

    .rt-shared-rail {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .rt-shared-rail > div {
        grid-template-columns: 1fr 1fr;
    }

    .rt-contact-shell {
        grid-template-columns: 1fr;
        gap: 34px;
        padding: 28px 22px;
    }

    .rt-contact-services {
        grid-template-columns: 1fr;
    }

    .rt-wecom-card {
        width: min(100%, 280px);
        justify-self: center;
    }
}

@media (max-width: 480px) {
    .rt-brand > span {
        display: none;
    }

    .rt-hero h1 {
        font-size: 40px;
    }

    .rt-actions,
    .rt-bridge-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .rt-primary,
    .rt-secondary {
        width: 100%;
    }

    .rt-story figure {
        min-height: 280px;
    }

    .rt-hero-visual,
    .rt-hero-visual img {
        min-height: 360px;
    }

    .rt-access-scene {
        min-height: 240px;
    }

    .rt-footer > .rt-wrap {
        align-items: flex-start;
        flex-direction: column;
    }

    .rt-footer > .rt-wrap > div {
        text-align: left;
    }
}

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

    .public-home,
    .rt-nav,
    .rt-hero,
    .rt-market-card,
    .rt-hero-visual,
    .rt-platform-showcase,
    .rt-story,
    .rt-access,
    .rt-access-card,
    .rt-capability-bridge,
    .rt-contact,
    .rt-contact-shell,
    .rt-wecom-card,
    .rt-footer {
        transition: none !important;
    }
}