:root {
    --navy-950: #081722;
    --navy-900: #0d2233;
    --navy-800: #12314a;
    --blue-500: #2d6d9f;
    --teal-300: #9ed4d6;
    --sand-100: #f4efe6;
    --sand-200: #e4d7c3;
    --gold-400: #d4a24c;
    --gold-500: #c48927;
    --white: #ffffff;
    --ink-700: #25323d;
    --ink-500: #5b6873;
    --border-soft: rgba(8, 23, 34, 0.12);
    --shadow-lg: 0 24px 60px rgba(7, 19, 28, 0.18);
    --shadow-md: 0 14px 30px rgba(7, 19, 28, 0.12);
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --shell-width: 1180px;
    --anchor-offset: 300px;
    --font-ui: "Noto Sans TC", "Noto Sans SC", sans-serif;
    --font-display-zh: "Noto Serif TC", "Noto Serif SC", serif;
    --font-display-en: "Cormorant Garamond", serif;
    --motion-duration-fast: 180ms;
    --motion-duration-base: 520ms;
    --motion-duration-slow: 820ms;
    --motion-ease-emphasis: cubic-bezier(0.22, 1, 0.36, 1);
    --motion-ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --reveal-distance: 30px;
    --reveal-scale: 0.985;
    --reveal-blur: 12px;
    --shadow-hover: 0 24px 52px rgba(7, 19, 28, 0.18);
    --shadow-float: 0 18px 40px rgba(7, 19, 28, 0.18);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--anchor-offset);
}

body {
    margin: 0;
    font-family: var(--font-ui);
    font-weight: 400;
    color: var(--ink-700);
    background:
        radial-gradient(circle at top left, rgba(45, 109, 159, 0.18), transparent 28%),
        linear-gradient(180deg, #f7f5f0 0%, #eef2f3 50%, #f7f5f0 100%);
}

body.motion-ready {
    overflow-x: clip;
}

.skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 100;
    padding: 10px 14px;
    border-radius: 999px;
    background: var(--gold-400);
    color: var(--navy-950);
    font-weight: 700;
    transform: translateY(-140%);
    transition: transform 180ms ease;
}

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

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

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

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

.shell {
    width: min(calc(100% - 32px), var(--shell-width));
    margin: 0 auto;
}

.topbar {
    background: linear-gradient(90deg, var(--navy-950), var(--navy-800));
    color: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar-inner,
.nav-wrap,
.hero-grid,
.section-grid,
.band-grid,
.promise-grid,
.contact-grid,
.footer-inner,
.footer-bottom {
    display: flex;
    gap: 24px;
}

.topbar-inner,
.nav-wrap,
.footer-inner,
.footer-bottom {
    align-items: center;
    justify-content: space-between;
}

.topbar-inner {
    padding: 12px 0;
    font-size: 0.88rem;
}

.topbar-copy {
    margin: 0;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

html[data-lang="en"] .topbar-copy {
    letter-spacing: 0.04em;
}

.topbar-links,
.site-nav,
.hero-actions,
.contact-actions,
.footer-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.nav-tools,
.language-switch {
    display: flex;
    align-items: center;
}

.nav-tools {
    gap: 16px;
}

.language-switch {
    gap: 6px;
    padding: 4px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.lang-button {
    min-width: 42px;
    min-height: 36px;
    padding: 0 12px;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: rgba(255, 255, 255, 0.9);
    font: inherit;
    font-size: 0.92rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.lang-button:hover,
.lang-button:focus-visible {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px) scale(1.02);
}

.lang-button.is-active {
    background: linear-gradient(135deg, var(--gold-400), var(--gold-500));
    color: var(--navy-950);
    box-shadow: 0 10px 18px rgba(196, 137, 39, 0.2);
}

.topbar-links a,
.footer-meta a {
    color: var(--white);
    transition: opacity var(--motion-duration-fast) ease, transform var(--motion-duration-fast) ease;
}

.topbar-links a:hover,
.topbar-links a:focus-visible,
.footer-meta a:hover,
.footer-meta a:focus-visible {
    opacity: 1;
    transform: translateY(-1px);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(18px);
    background: linear-gradient(180deg, rgba(8, 23, 34, 0.94), rgba(8, 23, 34, 0.62));
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: background 240ms var(--motion-ease-smooth), box-shadow 240ms var(--motion-ease-smooth);
}

.site-header.is-scrolled {
    background: linear-gradient(180deg, rgba(8, 23, 34, 0.98), rgba(8, 23, 34, 0.78));
    box-shadow: 0 20px 36px rgba(7, 19, 28, 0.22);
}

.site-header .topbar,
.site-header .nav-wrap {
    transition: background 240ms var(--motion-ease-smooth), padding 240ms var(--motion-ease-smooth), border-color 240ms var(--motion-ease-smooth);
}

.site-header.is-scrolled .topbar {
    background: linear-gradient(90deg, rgba(8, 23, 34, 0.98), rgba(18, 49, 74, 0.96));
}

.site-header.is-scrolled .nav-wrap {
    padding: 16px 24px;
    background: linear-gradient(135deg, rgba(8, 23, 34, 0.9), rgba(18, 49, 74, 0.84));
    border-color: rgba(255, 255, 255, 0.12);
}

section[id] {
    scroll-margin-top: var(--anchor-offset);
}

.nav-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 22px;
    padding: 18px 24px;
    background: linear-gradient(135deg, rgba(8, 23, 34, 0.82), rgba(18, 49, 74, 0.72));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    box-shadow: 0 18px 40px rgba(7, 19, 28, 0.18);
}

.brand-lockup {
    display: grid;
    gap: 6px;
    min-width: 0;
}

.brand-head {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.brand-copy {
    display: grid;
    gap: 4px;
    min-width: 0;
}

.brand-logo {
    width: 64px;
    height: 64px;
    flex: 0 0 64px;
    border-radius: 16px;
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.22);
}

.brand-kicker,
.brand-name {
    margin: 0;
}

.brand-kicker {
    font-size: 0.82rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--teal-300);
    font-weight: 600;
}

.brand-name {
    font-size: 1.1rem;
    font-family: var(--font-display-zh);
    font-weight: 600;
    letter-spacing: 0;
    line-height: 1.2;
    color: rgba(255, 255, 255, 0.98);
}

html[data-lang="en"] .brand-name {
    font-family: var(--font-ui);
    font-weight: 600;
    letter-spacing: 0.01em;
}

.header-contact {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    margin-top: 2px;
}

.header-contact-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.76rem;
    color: rgba(255, 255, 255, 0.68);
    transition: color var(--motion-duration-fast) ease, transform var(--motion-duration-fast) ease;
}

.header-contact-link:hover,
.header-contact-link:focus-visible {
    color: rgba(255, 255, 255, 0.96);
    transform: translateY(-1px);
}

.header-contact-link span:first-child {
    color: rgba(158, 212, 214, 0.9);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.header-contact-value {
    font-size: 0.8rem;
    letter-spacing: 0.01em;
}

.site-nav {
    justify-content: flex-end;
    gap: 16px 24px;
}

.site-nav a {
    position: relative;
    font-size: 0.96rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.88);
    transition: color var(--motion-duration-fast) ease, transform var(--motion-duration-fast) ease;
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 2px;
    transform: scaleX(0);
    transform-origin: left;
    background: var(--gold-500);
    transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
    transform: scaleX(1);
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--teal-300);
    transform: translateY(-1px);
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 48px 0 56px;
}

.hero-backdrop {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(8, 23, 34, 0.9), rgba(8, 23, 34, 0.56)),
        url("../img/office-hero.jpg") center center / cover no-repeat;
    transform: translate3d(0, var(--hero-shift, 0px), 0) scale(1.06);
    transition: transform 240ms linear;
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 170px;
    background: linear-gradient(180deg, rgba(247, 245, 240, 0), #f7f5f0 88%);
}

.hero-grid {
    position: relative;
    z-index: 1;
    align-items: flex-end;
    justify-content: space-between;
}

.hero-copy,
.hero-panel,
.contact-panel,
.map-frame-wrap {
    position: relative;
    z-index: 1;
}

.hero-copy {
    width: min(100%, 700px);
    color: var(--white);
    padding: 52px 0 72px;
}

.eyebrow,
.section-tag,
.card-kicker {
    margin-bottom: 16px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

html[data-lang="en"] .eyebrow,
html[data-lang="en"] .section-tag,
html[data-lang="en"] .card-kicker {
    letter-spacing: 0.16em;
}

.eyebrow,
.section-tag.light {
    color: var(--teal-300);
}

.section-tag {
    color: var(--blue-500);
}

.hero h1,
.section-head h2,
.section-grid h2,
.band-copy h2,
.promise-grid h2,
.contact-panel h2 {
    font-family: var(--font-display-zh);
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.08;
    text-wrap: balance;
}

.hero h1 {
    max-width: 100%;
    margin-bottom: 20px;
    font-size: clamp(3rem, 7vw, 5.4rem);
}

html[data-lang="zh-Hant"] .hero h1,
html[data-lang="zh-Hans"] .hero h1,
html[data-lang="zh-Hant"] .section-head h2,
html[data-lang="zh-Hans"] .section-head h2,
html[data-lang="zh-Hant"] .section-grid h2,
html[data-lang="zh-Hans"] .section-grid h2,
html[data-lang="zh-Hant"] .band-copy h2,
html[data-lang="zh-Hans"] .band-copy h2,
html[data-lang="zh-Hant"] .promise-grid h2,
html[data-lang="zh-Hans"] .promise-grid h2,
html[data-lang="zh-Hant"] .contact-panel h2,
html[data-lang="zh-Hans"] .contact-panel h2 {
    font-family: var(--font-display-zh);
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.08;
}

html[data-lang="en"] .hero-copy {
    width: min(100%, 760px);
}

html[data-lang="en"] .hero h1,
html[data-lang="en"] .section-head h2,
html[data-lang="en"] .section-grid h2,
html[data-lang="en"] .band-copy h2,
html[data-lang="en"] .promise-grid h2,
html[data-lang="en"] .contact-panel h2 {
    font-family: var(--font-display-en);
    font-weight: 600;
    letter-spacing: 0.01em;
    line-height: 0.98;
}

html[data-lang="en"] .hero h1 {
    max-width: 100%;
    font-size: clamp(3.2rem, 6vw, 4.9rem);
    line-height: 0.95;
    letter-spacing: -0.015em;
}

html[data-lang="en"] .lead {
    max-width: 100%;
}

.lead,
.section-head p,
.intro-copy p,
.band-copy p,
.contact-panel p {
    font-size: 1.02rem;
    line-height: 1.8;
    font-weight: 400;
}

.lead {
    max-width: 100%;
    margin-bottom: 28px;
    color: rgba(255, 255, 255, 0.84);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 22px;
    border-radius: 999px;
    font-weight: 700;
    transform: translateZ(0);
    transition:
        transform var(--motion-duration-fast) var(--motion-ease-smooth),
        box-shadow var(--motion-duration-fast) var(--motion-ease-smooth),
        background var(--motion-duration-fast) var(--motion-ease-smooth),
        border-color var(--motion-duration-fast) var(--motion-ease-smooth);
}

.button:hover,
.button:focus-visible {
    transform: translateY(-3px) scale(1.01);
}

.button-primary {
    background: linear-gradient(135deg, var(--gold-400), var(--gold-500));
    color: var(--navy-950);
    box-shadow: 0 10px 22px rgba(196, 137, 39, 0.24);
}

.button-primary:hover,
.button-primary:focus-visible {
    box-shadow: 0 18px 34px rgba(196, 137, 39, 0.34);
}

.button-secondary {
    border: 1px solid rgba(255, 255, 255, 0.28);
    background: rgba(255, 255, 255, 0.08);
    color: var(--white);
}

.button-secondary:hover,
.button-secondary:focus-visible {
    border-color: rgba(255, 255, 255, 0.52);
    background: rgba(255, 255, 255, 0.16);
}

.contact-actions .button-secondary {
    border-color: rgba(8, 23, 34, 0.15);
    background: var(--white);
    color: var(--navy-900);
}

.hero-points {
    display: grid;
    gap: 12px;
    margin: 28px 0 0;
    padding: 0;
    list-style: none;
    color: rgba(255, 255, 255, 0.84);
}

.hero-points li {
    position: relative;
    padding-left: 20px;
}

.hero-points li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.78em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gold-400);
    transform: translateY(-50%);
}

.hero-panel {
    width: min(100%, 340px);
    display: grid;
    gap: 14px;
    margin-bottom: 20px;
}

.stat-card,
.hero-contact-card,
.card,
.promise-item,
.contact-panel,
.map-frame-wrap {
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition:
        transform 260ms var(--motion-ease-emphasis),
        box-shadow 260ms var(--motion-ease-emphasis),
        border-color 260ms var(--motion-ease-emphasis),
        background 260ms var(--motion-ease-emphasis);
}

.stat-card,
.hero-contact-card {
    padding: 22px;
    color: var(--white);
    background: rgba(11, 29, 43, 0.66);
    backdrop-filter: blur(18px);
}

.stat-value {
    margin-bottom: 6px;
    font-size: 2rem;
    font-weight: 900;
    color: var(--sand-100);
}

.stat-label,
.hero-contact-card p,
.hero-contact-card a {
    margin: 0;
    color: rgba(255, 255, 255, 0.8);
}

.hero-contact-card {
    display: grid;
    gap: 10px;
}

.section {
    padding: 88px 0;
}

.section-grid,
.band-grid,
.promise-grid,
.contact-grid {
    align-items: start;
}

.section-grid > * {
    flex: 1 1 0;
}

.section-grid h2,
.section-head h2,
.band-copy h2,
.promise-grid h2,
.contact-panel h2 {
    margin-bottom: 18px;
    font-size: clamp(2.3rem, 5vw, 4rem);
    color: var(--navy-900);
}

.intro-copy {
    display: grid;
    gap: 14px;
}

.section-head {
    max-width: 860px;
    margin-bottom: 34px;
}

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

.card {
    padding: 28px;
    background: rgba(255, 255, 255, 0.82);
    border-color: var(--border-soft);
}

.service-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.card:hover,
.card:focus-within,
.promise-item:hover,
.promise-item:focus-within,
.stat-card:hover,
.hero-contact-card:hover,
.hero-contact-card:focus-within,
.contact-panel:hover,
.contact-panel:focus-within,
.map-frame-wrap:hover,
.map-frame-wrap:focus-within {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.card:hover,
.card:focus-within,
.promise-item:hover,
.promise-item:focus-within,
.contact-panel:hover,
.contact-panel:focus-within,
.map-frame-wrap:hover,
.map-frame-wrap:focus-within {
    border-color: rgba(45, 109, 159, 0.26);
    background: rgba(255, 255, 255, 0.92);
}

.card-index {
    margin-bottom: 18px;
    color: var(--gold-500);
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.card h3,
.advantage-list h3,
.promise-item h3 {
    margin-bottom: 12px;
    font-size: 1.28rem;
    font-weight: 700;
    color: var(--navy-900);
}

.card p,
.advantage-list p,
.promise-item p,
.contact-list dd {
    line-height: 1.8;
    color: var(--ink-500);
}

.service-card .card-copy {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
}

.band {
    background:
        linear-gradient(135deg, rgba(13, 34, 51, 0.98), rgba(18, 49, 74, 0.92)),
        url("../img/bg.jpg") center center / cover no-repeat;
    color: var(--white);
}

.band-copy,
.advantage-list {
    flex: 1 1 0;
}

.band-copy h2,
.band-copy p,
.advantage-list h3,
.advantage-list p {
    color: var(--white);
}

.advantage-list {
    display: grid;
    gap: 18px;
}

.advantage-list > div {
    padding: 24px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition:
        transform 260ms var(--motion-ease-emphasis),
        box-shadow 260ms var(--motion-ease-emphasis),
        border-color 260ms var(--motion-ease-emphasis),
        background 260ms var(--motion-ease-emphasis);
}

.advantage-list > div:hover,
.advantage-list > div:focus-within {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(158, 212, 214, 0.42);
    box-shadow: var(--shadow-float);
}

.promise-grid > :first-child,
.contact-panel {
    width: min(100%, 450px);
}

.promise-points {
    flex: 1 1 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.promise-item,
.contact-panel,
.map-frame-wrap {
    padding: 28px;
    background: rgba(255, 255, 255, 0.85);
    border-color: var(--border-soft);
}

.contact-grid {
    gap: 28px;
}

.contact-panel,
.map-frame-wrap {
    flex: 1 1 0;
}

.contact-list {
    display: grid;
    gap: 16px;
    margin: 26px 0;
}

.contact-list div {
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(8, 23, 34, 0.08);
}

.contact-list dt {
    margin-bottom: 6px;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--blue-500);
}

.contact-list dd {
    margin: 0;
}

.map-frame-wrap {
    min-height: 0;
    padding: 14px;
    overflow: hidden;
}

.map-frame-wrap iframe {
    width: 100%;
    min-height: clamp(320px, 42vw, 460px);
    height: clamp(320px, 42vw, 460px);
    border: 0;
    border-radius: calc(var(--radius-md) - 6px);
    background: linear-gradient(135deg, rgba(13, 34, 51, 0.15), rgba(196, 137, 39, 0.14));
}

.motion-enabled [data-hero-reveal],
.motion-enabled [data-animate] {
    opacity: 0;
    transform: translate3d(0, var(--reveal-distance), 0) scale(var(--reveal-scale));
    filter: blur(var(--reveal-blur));
    transition:
        opacity var(--motion-duration-base) var(--motion-ease-emphasis),
        transform var(--motion-duration-base) var(--motion-ease-emphasis),
        filter var(--motion-duration-base) var(--motion-ease-emphasis);
    transition-delay: var(--reveal-delay, 0ms);
    will-change: transform, opacity, filter;
}

.motion-enabled .hero-panel[data-hero-reveal] {
    transform: translate3d(0, 36px, 0) scale(0.98);
}

.motion-enabled .hero-panel .stat-card[data-hero-reveal],
.motion-enabled .hero-panel .hero-contact-card[data-hero-reveal] {
    transform: translate3d(0, 24px, 0) scale(0.98);
}

.motion-enabled [data-hero-reveal].is-visible,
.motion-enabled [data-animate].is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
    filter: blur(0);
}

.motion-enabled .hero-points li {
    opacity: 0;
    transform: translate3d(0, 18px, 0);
    transition:
        opacity var(--motion-duration-base) var(--motion-ease-emphasis),
        transform var(--motion-duration-base) var(--motion-ease-emphasis);
}

.motion-enabled .hero-points.is-visible li {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.motion-enabled .hero-points.is-visible li:nth-child(1) {
    transition-delay: calc(var(--reveal-delay, 0ms) + 60ms);
}

.motion-enabled .hero-points.is-visible li:nth-child(2) {
    transition-delay: calc(var(--reveal-delay, 0ms) + 140ms);
}

.motion-enabled .hero-points.is-visible li:nth-child(3) {
    transition-delay: calc(var(--reveal-delay, 0ms) + 220ms);
}

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

    *,
    *::before,
    *::after {
        animation: none !important;
        transition-duration: 0ms !important;
        transition-delay: 0ms !important;
    }

    .hero-backdrop {
        transform: none !important;
    }

    [data-hero-reveal],
    [data-animate],
    .hero-points li {
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
    }
}

.site-footer {
    background: var(--navy-950);
    color: rgba(255, 255, 255, 0.78);
}

.footer-inner {
    padding: 32px 0 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    margin-bottom: 6px;
    color: var(--white);
    font-weight: 700;
}

.footer-logo {
    width: 56px;
    height: 56px;
    margin-bottom: 12px;
    border-radius: 14px;
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.2);
}

.footer-inner p,
.footer-bottom p {
    margin: 0;
}

.footer-bottom {
    padding: 16px 0 32px;
    justify-content: flex-start;
}

@media (max-width: 1080px) {
    .hero-grid,
    .band-grid,
    .promise-grid,
    .contact-grid,
    .section-grid {
        flex-direction: column;
    }

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

    .hero-copy,
    .hero-panel,
    .promise-grid > :first-child,
    .contact-panel {
        width: 100%;
    }

    .map-frame-wrap iframe {
        min-height: 420px;
        height: 420px;
    }
}

@media (max-width: 720px) {
    :root {
        --anchor-offset: 126px;
    }

    .skip-link {
        top: 8px;
        left: 8px;
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 20;
        backdrop-filter: blur(18px);
        transition:
            transform 260ms var(--motion-ease-smooth),
            background 240ms var(--motion-ease-smooth),
            box-shadow 240ms var(--motion-ease-smooth);
        will-change: transform;
    }

    .site-header.is-hidden {
        transform: translateY(calc(-100% - 10px));
    }

    .topbar-inner,
    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
        justify-content: flex-start;
    }

    .site-header.is-scrolled .nav-wrap {
        padding: 14px 16px 12px;
    }

    .topbar-copy {
        display: none;
    }

    .nav-wrap {
        grid-template-columns: minmax(0, 1fr) auto;
        column-gap: 14px;
        row-gap: 12px;
        padding: 14px 16px 12px;
        display: grid;
        align-items: center;
        border-radius: 0;
        border-left: 0;
        border-right: 0;
        box-shadow: none;
    }

    .site-nav,
    .footer-meta {
        gap: 10px 16px;
    }

    .site-nav {
        width: 100%;
        justify-content: space-between;
        grid-column: 1 / span 2;
        grid-row: 2;
        padding-top: 4px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .language-switch {
        grid-column: 2;
        grid-row: 1;
        align-self: start;
        justify-self: end;
        gap: 3px;
        padding: 2px;
        margin-bottom: 0;
    }

    .lang-button {
        min-width: 30px;
        min-height: 28px;
        padding: 0 8px;
        font-size: 0.78rem;
    }

    .site-nav a {
        font-size: 0.88rem;
        line-height: 1.2;
    }

    .brand-lockup {
        display: grid;
        gap: 4px;
        min-width: 0;
    }

    .brand-head {
        gap: 10px;
    }

    .brand-logo {
        width: 50px;
        height: 50px;
        flex-basis: 50px;
        border-radius: 12px;
    }

    .brand-kicker {
        font-size: 0.6rem;
        letter-spacing: 0.06em;
    }

    .brand-name {
        font-size: 0.84rem;
        line-height: 1.15;
    }

    .header-contact {
        gap: 6px 10px;
        margin-top: 2px;
    }

    .header-contact-link {
        gap: 6px;
        font-size: 0.7rem;
    }

    .header-contact-link span:first-child {
        font-size: 0.64rem;
        letter-spacing: 0.06em;
    }

    .header-contact-value {
        font-size: 0.74rem;
    }

    .hero {
        padding-top: 20px;
    }

    .hero h1 {
        max-width: none;
        font-size: clamp(2.5rem, 11vw, 3.75rem);
        line-height: 1.06;
    }

    html[data-lang="en"] .hero h1 {
        max-width: 100%;
        font-size: clamp(2.6rem, 10vw, 3.8rem);
        line-height: 0.94;
    }

    .section {
        padding: 64px 0;
    }

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

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

    .card,
    .promise-item,
    .contact-panel {
        padding: 24px;
    }

    .promise-item {
        min-height: 218px;
        padding: 20px 18px;
    }

    .promise-item h3 {
        margin-bottom: 10px;
        font-size: 1.1rem;
        line-height: 1.14;
    }

    .promise-item p {
        margin: 0;
        font-size: 0.92rem;
        line-height: 1.68;
    }

    html[data-lang="en"] .promise-item h3 {
        font-size: 1rem;
        line-height: 1.08;
    }

    html[data-lang="en"] .promise-item p {
        font-size: 0.86rem;
        line-height: 1.56;
    }

    .service-card {
        min-height: 238px;
        padding: 20px 18px;
    }

    .service-card .card-index {
        margin-bottom: 12px;
        font-size: 0.76rem;
        letter-spacing: 0.14em;
    }

    .service-card h3 {
        margin-bottom: 10px;
        font-size: 1.1rem;
        line-height: 1.14;
    }

    html[data-lang="en"] .service-card h3 {
        font-size: 1rem;
        line-height: 1.08;
    }

    .service-card .card-copy > p:last-child {
        margin: 0;
        font-size: 0.92rem;
        line-height: 1.7;
        color: var(--ink-500);
    }

    html[data-lang="en"] .service-card .card-copy > p:last-child {
        font-size: 0.86rem;
        line-height: 1.58;
    }

    .map-frame-wrap {
        min-height: 334px;
        padding: 12px;
    }

    .map-frame-wrap iframe {
        min-height: 310px;
        height: 310px;
    }

    .button {
        width: 100%;
    }

    .hero-actions,
    .contact-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .card:hover,
    .card:focus-within,
    .promise-item:hover,
    .promise-item:focus-within,
    .stat-card:hover,
    .hero-contact-card:hover,
    .hero-contact-card:focus-within,
    .contact-panel:hover,
    .contact-panel:focus-within,
    .map-frame-wrap:hover,
    .map-frame-wrap:focus-within,
    .advantage-list > div:hover,
    .advantage-list > div:focus-within {
        transform: translateY(-4px);
    }
}

@media (max-width: 380px) {
    .service-card {
        min-height: 224px;
        padding: 18px 16px;
    }

    .service-card h3 {
        font-size: 1.02rem;
    }

    html[data-lang="en"] .service-card h3 {
        font-size: 0.96rem;
    }

    .service-card .card-copy > p:last-child {
        font-size: 0.88rem;
        line-height: 1.64;
    }

    html[data-lang="en"] .service-card .card-copy > p:last-child {
        font-size: 0.82rem;
        line-height: 1.52;
    }

    .promise-item {
        min-height: 206px;
        padding: 18px 16px;
    }

    .promise-item h3 {
        font-size: 1.02rem;
    }

    .promise-item p {
        font-size: 0.88rem;
        line-height: 1.6;
    }

    html[data-lang="en"] .promise-item h3 {
        font-size: 0.96rem;
    }

    html[data-lang="en"] .promise-item p {
        font-size: 0.82rem;
        line-height: 1.5;
    }
}