.landing-page {
    --color-ink: #1e334a;
    --color-teal: #397870;
    --color-muted: #637080;
    --color-line: #dce5eb;
    --color-surface: #f0f5f8;
    --header-height: 88px;
    color: var(--color-ink);
    background: #fff;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + 24px);
    -webkit-text-size-adjust: 100%;
}

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

.landing-page :where(body, h1, h2, h3, p, figure) {
    margin: 0;
}

.landing-page a {
    color: inherit;
    text-decoration: none;
    text-underline-offset: 5px;
}

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

.landing-page a:focus-visible {
    outline: 3px solid var(--color-teal);
    outline-offset: 5px;
    border-radius: 4px;
}

.landing-page ::selection {
    color: var(--color-ink);
    background: #d8eae6;
}

.page-width {
    width: min(1200px, calc(100% - 64px));
    margin-inline: auto;
}

.portal-messages {
    display: grid;
    gap: 8px;
    padding-top: 24px;
}

.portal-message {
    padding: 12px 16px;
    border: 1px solid var(--color-line);
    border-radius: 8px;
    background: var(--color-surface);
    font-size: 14px;
    overflow-wrap: anywhere;
}

.skip-link {
    position: fixed;
    z-index: 100;
    top: 16px;
    left: 16px;
    padding: 10px 18px;
    border: 1px solid var(--color-line);
    border-radius: 8px;
    background: #fff;
    transform: translateY(calc(-100% - 24px));
}

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

.site-header {
    position: sticky;
    z-index: 20;
    top: 0;
    background: #fff;
    box-shadow: inset 0 -1px 0 #e8edf1;
}

.header-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    min-height: var(--header-height);
    gap: 32px;
}

.brand {
    display: inline-flex;
    align-items: center;
    justify-self: start;
    gap: 10px;
    width: fit-content;
    font-size: 24px;
    font-weight: 650;
    letter-spacing: 2px;
    white-space: nowrap;
}

.brand img {
    flex: 0 0 auto;
    border-radius: 10px;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 36px;
    font-size: 14px;
}

.site-nav a {
    padding-block: 12px;
    white-space: nowrap;
}

.site-nav a:hover,
.back-top:hover,
.footer-bottom a:hover {
    color: var(--color-teal);
    text-decoration: underline;
}

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

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    min-height: 54px;
    padding: 12px 24px;
    border: 1px solid transparent;
    border-radius: 9px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.5;
    white-space: nowrap;
    transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.button span {
    font-size: 20px;
    font-weight: 400;
    line-height: 1;
}

.button.button-small {
    min-height: 42px;
    padding: 9px 20px;
    font-size: 14px;
}

.button.button-dark {
    color: #fff;
    background: var(--color-ink);
}

.button-dark:hover {
    background: #2f4c67;
}

.button.button-outline {
    border-color: #c9d4dc;
    background: #fff;
}

.button-outline:hover {
    border-color: var(--color-teal);
    background: #f3f8f7;
}

.button.button-light {
    color: var(--color-ink);
    background: #fff;
}

.button-light:hover {
    background: #e1eeeb;
}

.hero {
    background: linear-gradient(180deg, #fff 0%, var(--color-surface) 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 64px;
    padding-block: 42px 46px;
}

.hero-copy,
.hero-visual {
    min-width: 0;
}

.eyebrow {
    color: var(--color-teal);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1.5px;
}

.hero-copy > .eyebrow {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 26px;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-teal);
    box-shadow: 0 0 0 5px #eaf2ef;
}

.hero h1 {
    font-size: clamp(48px, 4.7vw, 68px);
    font-weight: 650;
    letter-spacing: -2px;
    line-height: 1.32;
}

.hero h1 > span {
    display: block;
}

.text-teal {
    color: var(--color-teal);
}

.hero-description {
    max-width: 440px;
    margin-top: 25px;
    color: var(--color-muted);
    font-size: 17px;
    line-height: 1.95;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
}

.hero-note {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 32px;
    color: var(--color-muted);
    font-size: 12px;
}

.note-line {
    flex: 0 0 24px;
    height: 1px;
    background: #9bafb9;
}

.hero-visual {
    width: 100%;
    max-width: 540px;
    justify-self: end;
}

.visual-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px 16px;
    margin-bottom: 18px;
    padding-inline: 24px;
    color: var(--color-muted);
    font-size: 11px;
}

.visual-index {
    font-size: 9px;
    letter-spacing: 1px;
}

.screen-stage {
    position: relative;
    isolation: isolate;
    width: 100%;
    max-width: 480px;
    aspect-ratio: 49 / 50;
    margin-inline: auto;
}

.screen-stage::before {
    position: absolute;
    z-index: -1;
    inset: 10% 0 4%;
    border-radius: 32px;
    background: #e5edf1;
    content: "";
}

.screen {
    position: absolute;
    overflow: hidden;
    border: 1px solid #d5dfe7;
    border-radius: 16px;
    background: var(--color-surface);
    box-shadow: 0 12px 28px -12px #263c5052;
}

.screen img {
    width: 100%;
}

.screen-secondary {
    top: 7%;
    left: 12%;
    width: 43%;
}

.screen-primary {
    z-index: 1;
    top: 0;
    right: 6%;
    width: 47%;
}

.hero-visual > figcaption {
    margin-top: 16px;
    color: var(--color-muted);
    font-size: 11px;
    text-align: center;
}

.hero-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-block: 26px;
    border-top: 1px solid #d9e3e9;
    color: var(--color-muted);
    font-size: 13px;
}

.hero-summary > div {
    display: flex;
    align-items: center;
    gap: 22px;
    color: var(--color-ink);
}

.hero-summary i {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #8da3b0;
}

.section {
    padding-block: 100px;
}

.section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 28px;
    margin-bottom: 44px;
}

.section-heading h2 {
    margin-top: 14px;
    font-size: clamp(28px, 2.6vw, 36px);
    font-weight: 600;
    letter-spacing: -0.8px;
    line-height: 1.5;
}

.section-description {
    color: var(--color-muted);
    font-size: 14px;
    line-height: 1.9;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 32px;
}

.feature-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 22px;
    border-top: 1px solid var(--color-line);
}

.feature-number {
    margin-bottom: 24px;
    color: #7c929f;
    font-size: 13px;
    letter-spacing: 1px;
}

.feature-kicker {
    color: var(--color-teal);
    font-size: 12px;
}

.feature-card h3 {
    margin-top: 5px;
    margin-bottom: 12px;
    font-size: 23px;
    font-weight: 600;
}

.feature-card h3 + p {
    margin-bottom: 26px;
    color: var(--color-muted);
    font-size: 14px;
    line-height: 1.95;
}

.feature-detail {
    margin-top: auto;
    font-size: 12px;
}

.feature-detail span {
    padding-inline: 6px;
    color: #a0b1bc;
}

.workflow-section {
    background: var(--color-surface);
}

.centered-heading {
    display: block;
    text-align: center;
}

.centered-heading .section-description {
    margin-top: 14px;
}

.workflow-list {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin: 54px 0 0;
    padding: 0;
    list-style: none;
}

.workflow-list li {
    position: relative;
    padding-inline: 24px;
    text-align: center;
}

.workflow-list li + li {
    border-left: 1px solid #d6e1e7;
}

.step-number {
    display: inline-block;
    margin-bottom: 17px;
    color: var(--color-teal);
    font-size: 28px;
    font-weight: 400;
    letter-spacing: -1px;
    line-height: 1.3;
}

.workflow-list h3 {
    margin-bottom: 10px;
    font-size: 20px;
    font-weight: 600;
}

.workflow-list p {
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.9;
}

.preview-label {
    flex-shrink: 0;
    padding-bottom: 6px;
    color: var(--color-muted);
    font-size: 12px;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
}

.preview-item {
    min-width: 0;
    padding: 28px 24px 32px;
    border-radius: 16px;
    background: var(--color-surface);
}

.preview-number {
    color: var(--color-teal);
    font-size: 12px;
    letter-spacing: 0.5px;
}

.preview-item h3 {
    margin-top: 10px;
    margin-bottom: 10px;
    font-size: 19px;
    font-weight: 600;
    line-height: 1.5;
}

.preview-item figcaption p {
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.9;
}

.preview-screen {
    width: 100%;
    max-width: 300px;
    margin: 28px auto 0;
    overflow: hidden;
    border: 1px solid #d7e1e8;
    border-radius: 12px;
    box-shadow: 0 12px 28px -18px #263c5047;
}

.preview-screen img {
    width: 100%;
}

.closing-section {
    padding-bottom: 100px;
}

.closing-panel {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    padding: 52px 60px;
    border-radius: 18px;
    color: #fff;
    background: var(--color-ink);
}

.closing-panel .eyebrow {
    color: #b3cfc9;
    font-size: 12px;
}

.closing-panel h2 {
    margin-top: 18px;
    font-size: clamp(30px, 3vw, 42px);
    font-weight: 500;
    letter-spacing: -0.8px;
    line-height: 1.5;
}

.closing-action {
    padding-bottom: 6px;
}

.closing-action p {
    margin-bottom: 24px;
    color: #c3d0dc;
    font-size: 13px;
}

.closing-panel a:focus-visible {
    outline-color: #c2e4dd;
}

.site-footer {
    border-top: 1px solid var(--color-line);
}

.footer-top {
    display: flex;
    align-items: center;
    gap: 28px;
    padding-block: 32px;
}

.footer-top .brand {
    font-size: 22px;
}

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

.back-top {
    margin-left: auto;
    font-size: 12px;
    white-space: nowrap;
}

.back-top span {
    margin-left: 10px;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px 24px;
    padding-block: 20px 28px;
    border-top: 1px solid #edf1f4;
    color: var(--color-muted);
    font-size: 11px;
}

@media (max-width: 1100px) {
    .hero-grid {
        gap: 32px;
    }

    .feature-grid,
    .preview-grid {
        gap: 22px;
    }

    .preview-item {
        padding-inline: 18px;
    }

    .preview-item h3 {
        font-size: 17px;
    }

    .closing-panel {
        padding: 44px 40px;
    }
}

@media (max-width: 960px) {
    .header-inner {
        gap: 24px;
    }

    .site-nav {
        gap: 24px;
    }

    .hero-grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 48px;
        padding-block: 56px 40px;
    }

    .hero-copy {
        width: 100%;
        max-width: 600px;
        margin-inline: auto;
    }

    .hero h1 {
        font-size: 58px;
    }

    .hero-description {
        max-width: 520px;
    }

    .hero-visual {
        justify-self: center;
    }

    .hero-summary {
        font-size: 12px;
    }

    .hero-summary > div {
        gap: 14px;
    }

    .section {
        padding-block: 76px;
    }

    .section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 20px;
    }

    .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 36px;
    }

    .workflow-list li {
        padding-inline: 12px;
    }

    .workflow-list p br,
    .preview-item p br {
        display: none;
    }

    .preview-grid {
        gap: 16px;
    }

    .preview-item {
        padding: 24px 14px;
    }

    .preview-item figcaption {
        min-height: 170px;
    }

    .closing-section {
        padding-bottom: 76px;
    }

    .closing-panel {
        align-items: flex-start;
        flex-direction: column;
        gap: 28px;
    }
}

@media (max-width: 640px) {
    .landing-page {
        --header-height: 116px;
    }

    .page-width {
        width: calc(100% - 40px);
    }

    .header-inner {
        grid-template-columns: 1fr auto;
        grid-template-rows: 72px 44px;
        gap: 0 20px;
    }

    .brand {
        gap: 8px;
        font-size: 22px;
    }

    .brand img {
        width: 40px;
    }

    .site-nav {
        grid-column: 1 / -1;
        grid-row: 2;
        justify-content: space-between;
        gap: 20px;
        height: 44px;
        font-size: 13px;
        box-shadow: inset 0 1px 0 #edf1f4;
    }

    .site-nav a {
        display: flex;
        align-items: center;
        min-height: 44px;
        padding-block: 0;
    }

    .header-action {
        grid-column: 2;
        grid-row: 1;
    }

    .button.button-small {
        min-height: 44px;
        padding-inline: 17px;
        font-size: 13px;
    }

    .hero-grid {
        gap: 42px;
        padding-block: 44px 32px;
    }

    .hero-copy > .eyebrow {
        margin-bottom: 23px;
        font-size: 12px;
        letter-spacing: 1px;
    }

    .hero h1 {
        font-size: clamp(42px, 12.8vw, 58px);
        letter-spacing: -1.5px;
    }

    .hero-description {
        margin-top: 22px;
        font-size: 15px;
        line-height: 1.9;
    }

    .hero-actions {
        gap: 12px;
        margin-top: 26px;
    }

    .hero-actions .button {
        gap: 20px;
        min-height: 50px;
        padding: 12px 19px;
        font-size: 14px;
    }

    .hero-note {
        margin-top: 24px;
        font-size: 11px;
    }

    .visual-heading {
        gap: 4px 12px;
        margin-bottom: 16px;
        padding-inline: 4px;
        font-size: 10px;
    }

    .visual-index {
        font-size: 8px;
    }

    .screen-stage::before {
        border-radius: 24px;
    }

    .screen {
        border-radius: 11px;
    }

    .hero-summary {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
        padding-block: 24px;
    }

    .hero-summary > div {
        gap: 17px;
    }

    .section {
        padding-block: 60px;
    }

    .section-heading {
        gap: 18px;
        margin-bottom: 32px;
    }

    .section-heading h2 {
        margin-top: 12px;
        font-size: 27px;
        letter-spacing: -0.5px;
    }

    .eyebrow {
        font-size: 12px;
        letter-spacing: 1px;
    }

    .desktop-break {
        display: none;
    }

    .feature-grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 32px;
    }

    .feature-card {
        position: relative;
        padding-top: 24px;
    }

    .feature-number {
        position: absolute;
        top: 25px;
        right: 0;
        margin-bottom: 0;
    }

    .feature-card h3 + p {
        margin-bottom: 16px;
    }

    .centered-heading {
        text-align: left;
    }

    .workflow-list {
        grid-template-columns: minmax(0, 1fr);
        margin-top: 32px;
    }

    .workflow-list li {
        padding: 0 0 24px 58px;
        text-align: left;
    }

    .workflow-list li + li {
        padding-top: 24px;
        border-top: 1px solid #d6e1e7;
        border-left: 0;
    }

    .workflow-list li:last-child {
        padding-bottom: 0;
    }

    .step-number {
        position: absolute;
        top: 1px;
        left: 0;
        margin-bottom: 0;
        font-size: 26px;
    }

    .workflow-list li + li .step-number {
        top: 25px;
    }

    .workflow-list h3 {
        margin-bottom: 7px;
    }

    .workflow-list p br {
        display: initial;
    }

    .preview-grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 24px;
    }

    .preview-item {
        padding: 28px 24px;
    }

    .preview-item figcaption {
        min-height: 0;
    }

    .preview-item h3 {
        font-size: 19px;
    }

    .preview-item p br {
        display: initial;
    }

    .preview-screen {
        margin-top: 24px;
    }

    .closing-section {
        padding-bottom: 60px;
    }

    .closing-panel {
        gap: 28px;
        padding: 32px 26px;
        border-radius: 14px;
    }

    .closing-panel h2 {
        font-size: 30px;
    }

    .closing-action p {
        margin-bottom: 20px;
    }

    .footer-top {
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 16px;
        padding-block: 28px;
    }

    .footer-top p {
        grid-column: 1 / -1;
        grid-row: 2;
        font-size: 12px;
    }

    .back-top {
        grid-column: 2;
        grid-row: 1;
    }

    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        padding-block: 20px 24px;
    }
}

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

    .button {
        transition: none;
    }
}