:root {
    --paper: #f4f0e7;
    --paper-light: #fbf9f4;
    --forest: #07533e;
    --forest-deep: #123d31;
    --forest-ink: #0c2f26;
    --ink: #19221d;
    --muted: #687069;
    --grain: #c5a45d;
    --cinnabar: #943e2f;
    --line: rgba(25, 34, 29, 0.16);
    --line-light: rgba(255, 255, 255, 0.18);
    --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", STSong, serif;
    --sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
    --shell: min(1320px, calc(100vw - 96px));
    --header-height: 86px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    color: var(--ink);
    background: var(--paper);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.75;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

body.menu-open {
    overflow: hidden;
}

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

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

button,
input,
select,
textarea {
    font: inherit;
}

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

:focus-visible {
    outline: 2px solid var(--grain);
    outline-offset: 4px;
}

.skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 120;
    padding: 10px 16px;
    color: #fff;
    background: var(--forest-deep);
    transform: translateY(-150%);
}

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

.shell {
    width: var(--shell);
    margin-inline: auto;
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 0 0 24px;
    color: var(--forest);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.eyebrow::after {
    width: 44px;
    height: 1px;
    background: var(--grain);
    content: "";
}

.display-title,
.section-title,
.page-title,
.footer-statement,
.quote-title {
    margin: 0;
    font-family: var(--serif);
    font-weight: 700;
    letter-spacing: -0.045em;
    line-height: 1.14;
}

.display-title {
    max-width: 780px;
    font-size: clamp(52px, 5vw, 78px);
}

.section-title {
    max-width: 900px;
    font-size: clamp(38px, 4.4vw, 68px);
}

.page-title {
    max-width: 900px;
    font-size: clamp(48px, 6vw, 88px);
}

.lead {
    max-width: 720px;
    margin: 24px 0 0;
    color: #414b45;
    font-size: clamp(18px, 1.5vw, 22px);
    line-height: 1.8;
}

.micro-note {
    color: var(--muted);
    font-size: 13px;
}

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 80;
    height: var(--header-height);
    border-bottom: 1px solid transparent;
    background: rgba(244, 240, 231, 0.9);
    transition: height 240ms ease, background 240ms ease, border-color 240ms ease;
    backdrop-filter: blur(14px);
}

.site-header.is-scrolled {
    height: 70px;
    border-bottom-color: var(--line);
    background: rgba(244, 240, 231, 0.97);
}

.site-header__inner {
    display: grid;
    grid-template-columns: 230px 1fr auto;
    align-items: center;
    height: 100%;
    gap: 36px;
}

.brand-lockup {
    display: inline-flex;
    width: 194px;
}

.brand-lockup img {
    width: 100%;
    height: auto;
}

.desktop-nav {
    display: flex;
    justify-content: center;
    gap: clamp(22px, 2.4vw, 40px);
}

.desktop-nav a,
.header-contact {
    position: relative;
    padding: 10px 0;
    font-size: 14px;
    font-weight: 600;
}

.desktop-nav a::after,
.header-contact::after {
    position: absolute;
    right: 0;
    bottom: 4px;
    left: 0;
    height: 1px;
    background: var(--forest);
    content: "";
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 220ms ease;
}

.desktop-nav a:hover::after,
.desktop-nav a[aria-current="page"]::after,
.header-contact:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.menu-toggle {
    display: none;
    min-width: 64px;
    min-height: 42px;
    border: 1px solid var(--line);
    color: var(--ink);
    background: transparent;
    cursor: pointer;
}

.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 100;
    overflow-y: auto;
    color: #fff;
    background: var(--forest-deep);
}

.mobile-menu[hidden] {
    display: none;
}

.mobile-menu__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 86px;
    border-bottom: 1px solid var(--line-light);
}

.mobile-menu__top img {
    width: 180px;
    filter: brightness(0) invert(1);
}

.mobile-menu__top button {
    padding: 9px 14px;
    border: 1px solid var(--line-light);
    color: #fff;
    background: transparent;
    cursor: pointer;
}

.mobile-menu__nav {
    display: grid;
    padding-block: 56px;
}

.mobile-menu__nav a {
    padding: 12px 0;
    border-bottom: 1px solid var(--line-light);
    font-family: var(--serif);
    font-size: clamp(28px, 7vw, 44px);
}

.mobile-menu__nav a[aria-current="page"] {
    color: #e0c47c;
}

.mobile-menu__note {
    padding-bottom: 40px;
    color: rgba(255, 255, 255, 0.64);
}

main {
    min-height: 60vh;
}

.home-hero {
    display: grid;
    grid-template-columns: minmax(500px, 0.9fr) minmax(0, 1.1fr);
    min-height: 820px;
    padding-top: var(--header-height);
    background: var(--paper-light);
}

.home-hero__copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 82px 5vw 58px max(48px, calc((100vw - 1320px) / 2));
}

.home-hero__copy .display-title span {
    display: block;
    color: var(--forest);
}

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

.button {
    display: inline-flex;
    min-height: 52px;
    align-items: center;
    justify-content: center;
    padding: 13px 24px;
    border: 1px solid var(--forest);
    color: #fff;
    background: var(--forest);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.06em;
    transition: color 220ms ease, background 220ms ease, transform 220ms ease;
}

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

.button--quiet {
    color: var(--forest);
    background: transparent;
}

.button--light {
    border-color: #fff;
    color: var(--forest-deep);
    background: #fff;
}

.hero-chapter {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: auto;
    padding-top: 48px;
    color: var(--muted);
    font-size: 12px;
    letter-spacing: 0.12em;
}

.hero-chapter::before {
    width: 36px;
    height: 1px;
    background: var(--grain);
    content: "";
}

.home-hero__media {
    position: relative;
    overflow: hidden;
}

.home-hero__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 56% center;
    transition: transform 1.1s cubic-bezier(.2, .7, .2, 1);
}

.home-hero:hover .home-hero__media img {
    transform: scale(1.015);
}

.hero-caption {
    position: absolute;
    right: 26px;
    bottom: 26px;
    max-width: 260px;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 0.86);
    background: rgba(12, 47, 38, 0.78);
    font-size: 12px;
}

.manifesto {
    position: relative;
    overflow: hidden;
    padding: 150px 0 130px;
}

.manifesto::after {
    position: absolute;
    right: -5vw;
    bottom: -26%;
    width: 48vw;
    height: 58%;
    border-top: 1px solid rgba(197, 164, 93, 0.38);
    content: "";
    transform: rotate(-6deg);
}

.manifesto-grid {
    display: grid;
    grid-template-columns: 1.35fr 0.65fr;
    align-items: end;
    gap: 96px;
}

.manifesto-copy {
    max-width: 520px;
    padding-left: 24px;
    border-left: 1px solid var(--grain);
    color: var(--muted);
}

.capabilities {
    padding: 110px 0 130px;
    border-block: 1px solid var(--line);
    background: var(--paper-light);
}

.section-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 64px;
}

.section-heading p {
    max-width: 460px;
    margin: 0;
    color: var(--muted);
}

.capability-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--line);
}

.capability {
    padding: 28px 18px 0;
    border-right: 1px solid var(--line);
}

.capability:first-child {
    padding-left: 0;
}

.capability:last-child {
    padding-right: 0;
    border-right: 0;
}

.capability__number {
    color: var(--grain);
    font-family: Georgia, serif;
    font-size: 14px;
}

.capability h3 {
    margin: 10px 0 10px;
    font-family: var(--serif);
    font-size: clamp(26px, 2.2vw, 36px);
    line-height: 1.25;
}

.capability p {
    min-height: 60px;
    margin: 0 0 24px;
    color: var(--muted);
    font-size: 14px;
}

.capability__image {
    overflow: hidden;
    aspect-ratio: 4 / 5;
    background: #ddd7cc;
}

.capability__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 500ms ease;
}

.capability:hover .capability__image img {
    transform: scale(1.025);
}

.text-action {
    display: inline-block;
    margin-top: 18px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--grain);
    color: var(--forest);
    font-weight: 700;
}

.partnership-banner {
    position: relative;
    min-height: 660px;
    overflow: hidden;
    color: #fff;
    background: var(--forest-deep);
}

.partnership-banner > img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.partnership-banner::after {
    position: absolute;
    inset: 0;
    background: rgba(7, 35, 27, 0.42);
    content: "";
}

.partnership-banner__content {
    position: relative;
    z-index: 1;
    display: flex;
    min-height: 660px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
}

.partnership-banner .section-title {
    max-width: 720px;
}

.partnership-banner p {
    max-width: 560px;
    color: rgba(255, 255, 255, 0.82);
}

.brand-feature {
    padding: 140px 0;
}

.brand-feature__grid {
    display: grid;
    grid-template-columns: 0.72fr 1.28fr;
    align-items: center;
    gap: 72px;
}

.brand-feature__media {
    min-height: 560px;
}

.brand-feature__media img {
    width: 100%;
    height: 100%;
    min-height: 560px;
    object-fit: cover;
}

.brand-feature__copy h2 {
    margin: 0 0 14px;
    font-family: var(--serif);
    font-size: clamp(52px, 5vw, 78px);
    line-height: 1.16;
}

.brand-feature__copy p {
    max-width: 480px;
    color: var(--muted);
}

.principles {
    padding: 120px 0;
    color: #fff;
    background: var(--forest-deep);
}

.principles-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 90px;
}

.principles .section-title {
    color: #fff;
}

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

.principle-item {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 20px;
    padding: 28px 0;
    border-bottom: 1px solid var(--line-light);
}

.principle-item span {
    color: #dfc27c;
    font-family: Georgia, serif;
}

.principle-item h3 {
    margin: 0 0 8px;
    font-family: var(--serif);
    font-size: 25px;
}

.principle-item p {
    margin: 0;
    color: rgba(255, 255, 255, 0.68);
}

.news-section {
    padding: 130px 0;
}

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

.news-item {
    display: grid;
    grid-template-columns: 160px 1fr auto;
    align-items: center;
    gap: 36px;
    padding: 30px 0;
    border-bottom: 1px solid var(--line);
}

.news-item time,
.news-item__meta {
    color: var(--muted);
    font-size: 13px;
}

.news-item h3 {
    margin: 0 0 6px;
    font-family: var(--serif);
    font-size: clamp(22px, 2.2vw, 32px);
}

.news-item p {
    margin: 0;
    color: var(--muted);
}

.prototype-badge {
    display: inline-flex;
    padding: 4px 8px;
    border: 1px solid var(--line);
    color: var(--cinnabar);
    font-size: 11px;
    letter-spacing: 0.08em;
}

.cta-band {
    padding: 110px 0;
    color: #fff;
    background: var(--forest);
}

.cta-band__grid {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: end;
    gap: 72px;
}

.cta-band .section-title {
    max-width: 880px;
    color: #fff;
}

.cta-band p {
    color: rgba(255, 255, 255, 0.72);
}

.page-hero {
    padding: calc(var(--header-height) + 92px) 0 100px;
    border-bottom: 1px solid var(--line);
    background: var(--paper-light);
}

.page-hero__grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    align-items: end;
    gap: 96px;
}

.page-hero__aside {
    padding-left: 26px;
    border-left: 1px solid var(--grain);
    color: var(--muted);
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 42px;
    color: var(--muted);
    font-size: 13px;
}

.breadcrumb span {
    color: var(--forest);
}

.content-section {
    padding: 110px 0;
}

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

.content-section--dark {
    color: #fff;
    background: var(--forest-deep);
}

.split-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    align-items: start;
    gap: 100px;
}

.split-grid--reverse {
    grid-template-columns: 1.15fr 0.85fr;
}

.split-grid img {
    width: 100%;
    min-height: 440px;
    object-fit: cover;
}

.content-copy h2,
.content-copy h3 {
    margin: 0 0 24px;
    font-family: var(--serif);
    line-height: 1.28;
}

.content-copy h2 {
    font-size: clamp(36px, 4vw, 62px);
}

.content-copy h3 {
    font-size: 30px;
}

.content-copy p,
.content-copy li {
    color: var(--muted);
}

.content-section--dark .content-copy p,
.content-section--dark .content-copy li {
    color: rgba(255, 255, 255, 0.72);
}

.plain-list {
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
    border-top: 1px solid var(--line);
}

.plain-list li {
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
}

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

.numbered-item {
    min-height: 260px;
    padding: 30px 28px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.numbered-item:nth-child(3n + 1) {
    border-left: 1px solid var(--line);
}

.numbered-item span {
    color: var(--grain);
    font-family: Georgia, serif;
}

.numbered-item h3 {
    margin: 56px 0 12px;
    font-family: var(--serif);
    font-size: 27px;
}

.numbered-item p {
    margin: 0;
    color: var(--muted);
}

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

.scenario {
    padding: 34px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.scenario:nth-child(2n + 1) {
    border-left: 1px solid var(--line);
}

.scenario h3 {
    margin: 0 0 12px;
    font-family: var(--serif);
    font-size: 30px;
}

.scenario p {
    margin: 0;
    color: var(--muted);
}

.brand-showcase {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    min-height: 650px;
    background: var(--paper-light);
}

.brand-showcase__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.brand-showcase__copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 64px clamp(36px, 6vw, 96px);
}

.brand-showcase__copy h2 {
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(50px, 5vw, 80px);
}

.form-layout {
    display: grid;
    grid-template-columns: 0.7fr 1.3fr;
    align-items: start;
    gap: 80px;
}

.contact-section {
    padding: clamp(56px, 8vw, 112px) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.7fr 1.3fr;
    align-items: start;
    gap: 80px;
}

.contact-tabs {
    display: grid;
    margin-top: 32px;
    border-top: 1px solid var(--line);
}

.contact-tabs button,
.contact-tabs a {
    display: block;
    padding: 18px 0;
    border: 0;
    border-bottom: 1px solid var(--line);
    color: var(--muted);
    background: transparent;
    text-align: left;
    cursor: pointer;
}

.contact-tabs button[aria-selected="true"],
.contact-tabs a[aria-selected="true"] {
    color: var(--forest);
    font-weight: 700;
}

.prototype-form {
    padding: clamp(28px, 5vw, 64px);
    background: var(--paper-light);
}

.contact-panel {
    padding: clamp(28px, 5vw, 64px);
    background: var(--paper-light);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.field {
    display: grid;
    gap: 8px;
}

.form-grid > label {
    display: grid;
    gap: 8px;
    font-size: 14px;
    font-weight: 700;
}

.form-grid > label input,
.form-grid > label select,
.form-grid > label textarea {
    width: 100%;
    min-height: 50px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 0;
    color: var(--ink);
    background: #fff;
}

.form-grid > label textarea {
    min-height: 136px;
    resize: vertical;
}

.field--full {
    grid-column: 1 / -1;
}

.field label,
.field legend {
    font-size: 14px;
    font-weight: 700;
}

.field input,
.field select,
.field textarea {
    width: 100%;
    min-height: 50px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 0;
    color: var(--ink);
    background: #fff;
}

.field textarea {
    min-height: 136px;
    resize: vertical;
}

.field input[aria-invalid="true"],
.field select[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
    border-color: var(--cinnabar);
}

.consent {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 24px 0;
    color: var(--muted);
    font-size: 14px;
}

.consent input {
    width: 18px;
    height: 18px;
    margin-top: 4px;
}

.form-status {
    min-height: 28px;
    margin: 18px 0 0;
    padding: 10px 0;
    font-size: 14px;
}

.form-status.is-error {
    color: var(--cinnabar);
}

.form-status.is-success {
    color: var(--forest);
}

.legal-copy {
    max-width: 880px;
    margin: 0 auto;
}

.legal-copy h2 {
    margin: 52px 0 14px;
    font-family: var(--serif);
    font-size: 32px;
}

.legal-copy p,
.legal-copy li {
    color: var(--muted);
}

.site-footer {
    padding-top: 92px;
    color: #fff;
    background: #0b2d24;
}

.footer-lead {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    align-items: end;
    gap: 80px;
    padding-bottom: 72px;
    border-bottom: 1px solid var(--line-light);
}

.footer-brand img {
    width: 220px;
    margin-bottom: 22px;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    margin: 0;
    color: rgba(255, 255, 255, 0.58);
}

.footer-statement {
    justify-self: end;
    font-size: clamp(42px, 5vw, 72px);
    text-align: right;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 48px;
    padding-block: 64px;
}

.footer-grid section {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
}

.footer-grid h2 {
    margin: 0 0 14px;
    color: #dfc27c;
    font-size: 13px;
    letter-spacing: 0.15em;
}

.footer-grid a {
    color: rgba(255, 255, 255, 0.88);
}

.footer-grid a:hover {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.footer-grid p {
    margin: 0;
    color: rgba(255, 255, 255, 0.52);
    font-size: 14px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 32px;
    padding: 22px 0 26px;
    border-top: 1px solid var(--line-light);
    color: rgba(255, 255, 255, 0.46);
    font-size: 12px;
}

.footer-bottom p {
    margin: 0;
}

.footer-bottom div {
    display: flex;
    gap: 22px;
}

.back-to-top {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 30;
    min-width: 88px;
    min-height: 44px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    color: #fff;
    background: rgba(12, 47, 38, 0.9);
    cursor: pointer;
}

[data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 700ms ease, transform 700ms ease;
    animation: reveal-in 700ms ease forwards;
}

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

.notice {
    width: min(100%, 720px);
    padding: 14px 16px;
    margin-bottom: 22px;
    border-left: 3px solid;
}

.notice--success { color: #0f5b46; background: #edf7f2; border-color: #0f5b46; }
.notice--error { color: #7d2e28; background: #fbefed; border-color: #a43d34; }
.field-error { margin: 4px 0 0; color: #9b312b; font-size: 13px; }
.honeypot { position: absolute !important; left: -10000px !important; width: 1px; height: 1px; overflow: hidden; }
.empty-state { padding: 54px 0; color: var(--muted); }
.news-item h2, .news-item h3 { margin-top: 0; }
.news-item a:hover, .news-item a:focus-visible { color: var(--forest); }
.article-page .page-hero { padding-bottom: 64px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 26px; color: var(--muted); font-size: 13px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 80px; padding-top: 72px; padding-bottom: 100px; }
.article-body { font-size: 17px; line-height: 1.9; }
.article-body h2 { margin-top: 2.2em; font-family: var(--serif); font-size: 30px; }
.article-layout aside { border-left: 1px solid var(--line); padding-left: 28px; }
.article-layout aside .button { margin-top: 20px; }
.form-grid__wide { grid-column: 1 / -1; }

@media (max-width: 860px) {
    .contact-grid { grid-template-columns: 1fr; gap: 38px; }
    .article-layout { grid-template-columns: 1fr; gap: 36px; }
    .article-layout aside { border-left: 0; border-top: 1px solid var(--line); padding: 28px 0 0; }
}

@keyframes reveal-in {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1100px) {
    :root {
        --shell: min(100% - 56px, 980px);
    }

    .site-header__inner {
        grid-template-columns: 190px 1fr auto;
        gap: 20px;
    }

    .brand-lockup {
        width: 176px;
    }

    .desktop-nav {
        gap: 18px;
    }

    .desktop-nav a,
    .header-contact {
        font-size: 13px;
    }

    .home-hero {
        grid-template-columns: minmax(460px, 0.92fr) minmax(0, 1.08fr);
        min-height: 720px;
    }

    .manifesto-grid,
    .page-hero__grid,
    .split-grid,
    .split-grid--reverse,
    .principles-grid,
    .form-layout {
        gap: 56px;
    }

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

    .capability {
        padding: 28px 24px 54px;
        border-bottom: 1px solid var(--line);
    }

    .capability:nth-child(2n) {
        border-right: 0;
    }

    .capability:nth-child(2n + 1) {
        padding-left: 0;
    }

    .capability:nth-child(2n) {
        padding-right: 0;
    }

    .capability__image {
        aspect-ratio: 4 / 3;
    }

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

    .numbered-item:nth-child(3n + 1) {
        border-left: 0;
    }

    .numbered-item:nth-child(2n + 1) {
        border-left: 1px solid var(--line);
    }
}

@media (max-width: 820px) {
    :root {
        --shell: min(100% - 40px, 720px);
        --header-height: 74px;
    }

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

    .brand-lockup {
        width: 166px;
    }

    .desktop-nav,
    .header-contact {
        display: none;
    }

    .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .home-hero {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .home-hero__copy {
        min-height: 650px;
        padding: 110px 24px 48px;
    }

    .home-hero__media {
        min-height: 480px;
    }

    .manifesto,
    .capabilities,
    .brand-feature,
    .principles,
    .news-section,
    .content-section {
        padding-block: 88px;
    }

    .manifesto-grid,
    .page-hero__grid,
    .split-grid,
    .split-grid--reverse,
    .principles-grid,
    .form-layout,
    .brand-feature__grid,
    .brand-showcase,
    .footer-lead,
    .cta-band__grid {
        grid-template-columns: 1fr;
    }

    .section-heading {
        align-items: flex-start;
        flex-direction: column;
        margin-bottom: 44px;
    }

    .manifesto-copy {
        max-width: 620px;
    }

    .partnership-banner,
    .partnership-banner__content {
        min-height: 620px;
    }

    .partnership-banner > img {
        object-position: 58% center;
    }

    .brand-feature__grid {
        gap: 40px;
    }

    .brand-feature__media,
    .brand-feature__media img {
        min-height: 420px;
    }

    .brand-showcase__image {
        min-height: 460px;
    }

    .page-hero {
        padding-top: calc(var(--header-height) + 70px);
    }

    .page-hero__aside {
        max-width: 620px;
    }

    .news-item {
        grid-template-columns: 120px 1fr;
    }

    .news-item .prototype-badge {
        grid-column: 2;
        justify-self: start;
    }

    .footer-statement {
        justify-self: start;
        text-align: left;
    }

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

@media (max-width: 560px) {
    :root {
        --shell: calc(100% - 32px);
    }

    body {
        font-size: 15px;
    }

    .display-title {
        font-size: clamp(44px, 13vw, 58px);
    }

    .page-title {
        font-size: clamp(42px, 12vw, 56px);
    }

    .section-title {
        font-size: clamp(36px, 10vw, 48px);
    }

    .home-hero__copy {
        min-height: 590px;
        padding-inline: 16px;
    }

    .home-hero__media {
        min-height: 390px;
    }

    .hero-actions,
    .section-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .hero-caption {
        right: 12px;
        bottom: 12px;
        left: 12px;
    }

    .capability-grid,
    .numbered-grid,
    .scenario-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .capability,
    .capability:first-child,
    .capability:last-child,
    .capability:nth-child(2n),
    .capability:nth-child(2n + 1) {
        padding: 28px 0 50px;
        border-right: 0;
    }

    .capability p {
        min-height: 0;
    }

    .numbered-item,
    .numbered-item:nth-child(2n + 1),
    .numbered-item:nth-child(3n + 1),
    .scenario,
    .scenario:nth-child(2n + 1) {
        border-right: 0;
        border-left: 0;
    }

    .partnership-banner,
    .partnership-banner__content {
        min-height: 680px;
    }

    .partnership-banner > img {
        object-position: 68% center;
    }

    .partnership-banner::after {
        background: rgba(7, 35, 27, 0.6);
    }

    .brand-feature__media,
    .brand-feature__media img {
        min-height: 340px;
    }

    .principle-item {
        grid-template-columns: 40px 1fr;
    }

    .news-item {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .news-item .prototype-badge {
        grid-column: 1;
    }

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

    .field--full {
        grid-column: auto;
    }

    .footer-grid {
        gap: 40px;
    }

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

    .footer-bottom div {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }

    .back-to-top {
        right: 12px;
        bottom: 12px;
    }
}

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

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

    [data-reveal] {
        opacity: 1;
        transform: none;
    }
}

/* 小牙山货重点品牌与官网、服务号、小程序入口。 */
.header-brand-link {
    padding: 8px 13px;
    color: var(--forest);
    border: 1px solid rgba(7, 83, 62, 0.28);
    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
}

.header-brand-link:hover {
    color: #fff;
    background: var(--forest);
}

.brand-feature--xiaoya .brand-feature__copy {
    align-self: center;
}

.brand-entry-list {
    display: grid;
    gap: 1px;
    margin: 32px 0;
    background: var(--line);
    border: 1px solid var(--line);
}

.brand-entry-list a {
    display: grid;
    grid-template-columns: 120px minmax(150px, 1fr) minmax(190px, auto);
    align-items: center;
    gap: 18px;
    padding: 16px 18px;
    background: var(--paper-light);
    transition: background-color 180ms ease, color 180ms ease;
}

.brand-entry-list a:hover {
    color: #fff;
    background: var(--forest);
}

.brand-entry-list small {
    color: var(--cinnabar);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.brand-entry-list a:hover small {
    color: var(--gold-soft);
}

.brand-entry-list strong {
    font-family: var(--serif);
    font-size: 18px;
}

.brand-entry-list span {
    color: var(--muted);
    font-size: 12px;
    text-align: right;
}

.brand-entry-list a:hover span {
    color: rgba(255, 255, 255, 0.76);
}

.brand-channels {
    padding: 110px 0 128px;
    background: var(--forest-deep);
    color: #fff;
}

.brand-channels .section-heading > p {
    color: rgba(255, 255, 255, 0.68);
}

.brand-channel-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--line-light);
    border-left: 1px solid var(--line-light);
}

.brand-channel-card {
    position: relative;
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    min-height: 530px;
    padding: 34px;
    border-right: 1px solid var(--line-light);
    border-bottom: 1px solid var(--line-light);
}

.brand-channel-card--website {
    justify-content: center;
    background: rgba(255, 255, 255, 0.035);
}

.channel-index {
    position: absolute;
    top: 24px;
    right: 28px;
    color: var(--grain);
    font: 600 16px Georgia, serif;
}

.brand-channel-card h3 {
    margin: 8px 0 14px;
    color: #fff;
    font-size: clamp(25px, 2.4vw, 36px);
}

.brand-channel-card > p:not(.eyebrow) {
    color: rgba(255, 255, 255, 0.68);
}

.brand-channel-card .text-action {
    margin-top: auto;
    color: var(--gold-soft);
}

.brand-channel-qr {
    width: 190px;
    height: 190px;
    margin: 24px 0 26px;
    padding: 8px;
    background: #fff;
    object-fit: contain;
}

@media (max-width: 1040px) {
    .header-brand-link {
        display: none;
    }

    .brand-channel-grid {
        grid-template-columns: 1fr;
    }

    .brand-channel-card {
        min-height: 0;
    }
}

@media (max-width: 700px) {
    .brand-entry-list a {
        grid-template-columns: 1fr;
        gap: 3px;
    }

    .brand-entry-list span {
        text-align: left;
    }

    .brand-channels {
        padding: 76px 0 88px;
    }

    .brand-channel-card {
        padding: 28px 24px;
    }

    .brand-channel-qr {
        width: 170px;
        height: 170px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .header-brand-link,
    .brand-entry-list a {
        transition: none;
    }
}