:root {
    --ink: #080a0f;
    --ink-soft: #11141b;
    --ink-card: #151922;
    --paper: #f4f5f7;
    --white: #ffffff;
    --text: #17191f;
    --muted: #686d78;
    --muted-light: #a9afba;
    --line: #d9dce2;
    --line-dark: rgba(255, 255, 255, .13);
    --brand: #ed1b2f;
    --brand-dark: #bb0d1d;
    --lime: #d7ff43;
    --shell: min(1380px, calc(100vw - 96px));
    --header-height: 88px;
    --ease: cubic-bezier(.22, 1, .36, 1);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    color: var(--text);
    background: var(--paper);
    font-family: "Noto Sans SC", "Inter", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

html[data-language="en"] body {
    font-family: "Inter", "Noto Sans SC", Arial, sans-serif;
}

body.menu-open {
    overflow: hidden;
}

::selection {
    color: var(--white);
    background: var(--brand);
}

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

img.image-missing {
    visibility: hidden;
}

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

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

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

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

.section-space {
    padding-block: clamp(100px, 10vw, 168px);
}

.skip-link {
    position: fixed;
    z-index: 10000;
    inset-block-start: 12px;
    inset-inline-start: 12px;
    padding: 12px 18px;
    color: var(--white);
    background: var(--brand);
    transform: translateY(-150%);
    transition: transform .2s ease;
}

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

/* Loader */
.page-loader {
    position: fixed;
    z-index: 9999;
    inset: 0;
    display: grid;
    place-items: center;
    color: var(--white);
    background: var(--ink);
    transition: opacity .7s var(--ease), visibility .7s;
}

.page-loader::after {
    content: "";
    position: absolute;
    inset-inline-end: 5vw;
    inset-block-end: 5vh;
    width: 8px;
    height: 8px;
    background: var(--brand);
}

.loader-mark {
    font-family: "Inter", sans-serif;
    font-size: clamp(2.2rem, 6vw, 6rem);
    font-weight: 800;
    letter-spacing: -.07em;
}

.loader-line {
    position: absolute;
    inset-inline: 8vw;
    inset-block-end: 10vh;
    height: 1px;
    overflow: hidden;
    background: rgba(255, 255, 255, .16);
}

.loader-line span {
    display: block;
    width: 100%;
    height: 100%;
    background: var(--brand);
    transform: scaleX(0);
    transform-origin: left;
    animation: loadingLine 1.1s var(--ease) forwards;
}

html[data-language="zh"] .loader-line span {
    transform-origin: left;
}

.page-loaded .page-loader {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

@keyframes loadingLine {
    to {
        transform: scaleX(1);
    }
}

/* Header */
.site-header {
    position: fixed;
    z-index: 1000;
    inset: 0 0 auto;
    height: var(--header-height);
    color: var(--white);
    border-bottom: 1px solid rgba(255, 255, 255, .12);
    transition: height .35s var(--ease), color .35s ease, background .35s ease, box-shadow .35s ease;
}

.site-header.is-scrolled {
    height: 74px;
    color: var(--text);
    background: rgba(248, 249, 251, .94);
    box-shadow: 0 12px 40px rgba(13, 17, 28, .08);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-bottom-color: rgba(15, 18, 25, .08);
}

.header-shell {
    width: var(--shell);
    height: 100%;
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

.brand {
    position: relative;
    z-index: 1002;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex: 0 0 auto;
}

.brand img {
    width: 130px;
    height: 42px;
    object-fit: contain;
}

.brand-copy {
    display: none;
}

.brand-copy strong {
    display: block;
    font-family: "Inter", sans-serif;
    font-size: 1.1rem;
    line-height: 1;
    letter-spacing: -.04em;
}

.brand-copy small {
    display: block;
    margin-top: 4px;
    font-size: .65rem;
    opacity: .62;
}

.desktop-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(18px, 2.2vw, 38px);
}

.desktop-nav a {
    position: relative;
    padding-block: 10px;
    font-size: .87rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: .75;
    transition: opacity .25s ease;
}

.desktop-nav a::after {
    content: "";
    position: absolute;
    inset-inline: 0;
    inset-block-end: 2px;
    height: 2px;
    background: var(--brand);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform .3s var(--ease);
}

.desktop-nav a:hover,
.desktop-nav a.is-active {
    opacity: 1;
}

.desktop-nav a:hover::after,
.desktop-nav a.is-active::after {
    transform: scaleX(1);
    transform-origin: left;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 0 0 auto;
}

.language-switch {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 0;
    font-size: .83rem;
    font-weight: 700;
}

.language-dot {
    width: 7px;
    height: 7px;
    background: var(--brand);
    border-radius: 50%;
    box-shadow: 0 0 0 5px rgba(237, 27, 47, .15);
}

.header-cta {
    display: inline-flex;
    align-items: center;
    gap: 18px;
    padding: 13px 18px;
    color: var(--white);
    background: var(--brand);
    font-size: .82rem;
    font-weight: 700;
    transition: background .25s ease, transform .25s ease;
}

.header-cta:hover {
    background: var(--brand-dark);
    transform: translateY(-2px);
}

.menu-toggle {
    position: relative;
    z-index: 1002;
    display: none;
    width: 48px;
    height: 48px;
    padding: 0;
    color: inherit;
    border: 1px solid currentColor;
    background: transparent;
    cursor: pointer;
}

.menu-toggle span {
    position: absolute;
    inset-inline-start: 13px;
    width: 20px;
    height: 1px;
    background: currentColor;
    transition: transform .3s var(--ease), top .3s var(--ease);
}

.menu-toggle span:first-child {
    top: 19px;
}

.menu-toggle span:last-child {
    top: 27px;
}

.menu-toggle.is-open span:first-child {
    top: 23px;
    transform: rotate(45deg);
}

.menu-toggle.is-open span:last-child {
    top: 23px;
    transform: rotate(-45deg);
}

.mobile-menu {
    position: fixed;
    z-index: 1001;
    inset: 0;
    padding: 120px 24px 48px;
    color: var(--white);
    background: var(--ink);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-18px);
    transition: opacity .35s ease, transform .35s var(--ease), visibility .35s;
}

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

.mobile-menu-inner {
    width: min(720px, 100%);
    margin-inline: auto;
    display: grid;
}

.mobile-menu a {
    display: grid;
    grid-template-columns: 44px 1fr;
    align-items: center;
    padding: 16px 0;
    font: 500 .72rem/1 "Inter", sans-serif;
    color: rgba(255, 255, 255, .45);
    border-bottom: 1px solid var(--line-dark);
}

.mobile-menu a span {
    color: var(--white);
    font: 700 clamp(1.5rem, 6vw, 2.4rem)/1.2 "Noto Sans SC", "Inter", sans-serif;
}

/* Shared typography */
.eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 24px;
    color: #444954;
    font-family: "Inter", sans-serif;
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .15em;
    text-transform: uppercase;
}

.eyebrow>span {
    width: 30px;
    height: 2px;
    background: var(--brand);
}

.eyebrow-light {
    color: rgba(255, 255, 255, .58);
}

.display-title {
    margin: 0;
    max-width: 930px;
    font-size: clamp(2.4rem, 5vw, 5.7rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -.055em;
}

html[data-language="zh"] .display-title {
    line-height: 1.2;
    letter-spacing: -.035em;
}

.display-title.light {
    color: var(--white);
}

.split-heading {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(280px, .65fr);
    gap: clamp(50px, 10vw, 160px);
    align-items: end;
    margin-bottom: clamp(56px, 7vw, 104px);
}

.split-heading>p {
    margin: 0;
    color: var(--muted);
    font-size: 1.02rem;
}

.machines .split-heading>p,
.service-heading>p {
    color: var(--muted-light);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 26px;
    margin-top: 30px;
    padding-bottom: 9px;
    color: var(--text);
    border-bottom: 1px solid var(--text);
    font-size: .9rem;
    font-weight: 700;
}

.text-link span {
    transition: transform .25s var(--ease);
}

.text-link:hover span {
    transform: translate(3px, 3px);
}

/* Hero */
.hero {
    position: relative;
    min-height: max(760px, 100svh);
    overflow: hidden;
    color: var(--white);
    background: var(--ink);
}

.hero-grid {
    position: absolute;
    inset: 0;
    opacity: .22;
    background-image:
        linear-gradient(rgba(255, 255, 255, .08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .08) 1px, transparent 1px);
    background-size: 90px 90px;
    -webkit-mask-image: linear-gradient(to bottom, black, transparent 90%);
    mask-image: linear-gradient(to bottom, black, transparent 90%);
}

.hero-orbit {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 50%;
}

.hero-orbit::before {
    content: "";
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--brand);
    box-shadow: 0 0 30px var(--brand);
}

.hero-orbit-one {
    width: 700px;
    height: 700px;
    inset-inline-end: -150px;
    inset-block-start: 120px;
    animation: orbit 26s linear infinite;
}

.hero-orbit-one::before {
    inset: 86px auto auto 88px;
}

.hero-orbit-two {
    width: 430px;
    height: 430px;
    inset-inline-end: 45px;
    inset-block-start: 255px;
    animation: orbit 18s linear infinite reverse;
}

.hero-orbit-two::before {
    inset: auto 40px 80px auto;
}

@keyframes orbit {
    to {
        transform: rotate(360deg);
    }
}

.hero-shell {
    position: relative;
    z-index: 2;
    min-height: max(700px, calc(100svh - 86px));
    padding-top: calc(var(--header-height) + 64px);
    padding-bottom: 88px;
    display: grid;
    grid-template-columns: minmax(0, .95fr) minmax(460px, 1.05fr);
    align-items: center;
    gap: 40px;
}

.hero-copy {
    position: relative;
    z-index: 4;
}

.hero-copy h1 {
    margin: 0;
    font-size: clamp(3.4rem, 6.7vw, 7.4rem);
    font-weight: 800;
    line-height: .98;
    letter-spacing: -.07em;
}

html[data-language="zh"] .hero-copy h1 {
    font-size: clamp(3.1rem, 6.1vw, 6.8rem);
    line-height: 1.12;
    letter-spacing: -.055em;
}

.hero-copy h1 span,
.hero-copy h1 em {
    display: block;
}

.hero-copy h1 em {
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, .72);
    font-style: normal;
}

.hero-intro {
    max-width: 660px;
    margin: 34px 0 0;
    color: rgba(255, 255, 255, .68);
    font-size: clamp(1rem, 1.25vw, 1.15rem);
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 42px;
}

.button {
    min-height: 58px;
    padding: 16px 24px;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 42px;
    font-size: .88rem;
    font-weight: 700;
    transition: transform .25s var(--ease), background .25s ease, color .25s ease;
}

.button:hover {
    transform: translateY(-3px);
}

.button-primary {
    color: var(--white);
    background: var(--brand);
}

.button-primary:hover {
    background: var(--brand-dark);
}

.button-ghost {
    border: 1px solid rgba(255, 255, 255, .34);
}

.button-ghost:hover {
    color: var(--ink);
    background: var(--white);
}

.hero-visual {
    position: relative;
    min-height: 600px;
    display: grid;
    place-items: center;
}

.machine-glow {
    position: absolute;
    inset: 20% 0 10%;
    background: radial-gradient(ellipse, rgba(237, 27, 47, .22), transparent 66%);
    filter: blur(12px);
}

.hero-machine-wrap {
    position: relative;
    width: min(780px, 58vw);
    padding: 18px;
    background: rgba(255, 255, 255, .025);
    border: 1px solid rgba(255, 255, 255, .06);
    transform: perspective(1200px) rotateY(-6deg) rotateX(2deg);
}

.hero-machine {
    width: 100%;
    aspect-ratio: 1.52;
    object-fit: contain;
    mix-blend-mode: screen;
    filter: drop-shadow(0 28px 38px rgba(0, 0, 0, .55));
}

.hero-spec-card {
    position: absolute;
    z-index: 2;
    inset-inline-start: -20px;
    inset-block-end: 74px;
    width: 230px;
    padding: 18px 20px;
    background: rgba(10, 12, 17, .82);
    border: 1px solid rgba(255, 255, 255, .17);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
}

.hero-spec-card span {
    display: block;
    color: var(--brand);
    font: 700 .65rem/1 "Inter", sans-serif;
    letter-spacing: .13em;
}

.hero-spec-card strong {
    display: block;
    margin-top: 9px;
    font-size: .88rem;
    line-height: 1.45;
}

.hero-spec-card i {
    position: absolute;
    inset: auto 0 0;
    height: 3px;
    background: var(--brand);
}

.hero-index {
    position: absolute;
    inset-inline-end: 0;
    inset-block-start: 15px;
    color: rgba(255, 255, 255, .13);
    font: 800 clamp(5rem, 10vw, 11rem)/1 "Inter", sans-serif;
    letter-spacing: -.08em;
}

.hero-footer {
    position: absolute;
    z-index: 3;
    inset: auto 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: rgba(255, 255, 255, .42);
    font: 600 .68rem/1 "Inter", sans-serif;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.scroll-cue {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.scroll-cue span {
    position: relative;
    width: 34px;
    height: 34px;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 50%;
}

.scroll-cue span::after {
    content: "";
    position: absolute;
    inset: 10px 12px;
    border-right: 1px solid var(--white);
    border-bottom: 1px solid var(--white);
    transform: rotate(45deg) translate(-2px, -2px);
}

/* Metrics */
.metrics {
    position: relative;
    z-index: 4;
    color: var(--white);
    background: var(--brand);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.metric-card {
    min-height: 180px;
    padding: 36px clamp(22px, 3vw, 48px);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-inline-end: 1px solid rgba(255, 255, 255, .26);
}

.metric-card:first-child {
    border-inline-start: 1px solid rgba(255, 255, 255, .26);
}

.metric-card strong {
    font: 700 clamp(2.4rem, 4vw, 4.4rem)/1 "Inter", sans-serif;
    letter-spacing: -.06em;
}

.metric-card sup {
    margin-inline-start: 6px;
    font-size: .24em;
    letter-spacing: 0;
    vertical-align: super;
}

.metric-card>span {
    font-size: .83rem;
    font-weight: 600;
    opacity: .83;
}

/* Company */
.company {
    background: var(--paper);
}

.company-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr);
    gap: clamp(50px, 10vw, 150px);
    align-items: start;
}

.company-copy {
    padding-top: 54px;
}

.lead-copy {
    margin: 0;
    font-size: clamp(1.18rem, 1.65vw, 1.55rem);
    font-weight: 600;
    line-height: 1.65;
}

.body-columns {
    margin-top: 32px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 26px;
}

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

.company-media {
    margin-top: 88px;
}

.factory-hero {
    position: relative;
    margin: 0;
    min-height: 600px;
    overflow: hidden;
    background: var(--ink-soft);
}

.factory-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(4, 5, 8, .68), transparent 46%);
}

.factory-hero>img {
    width: 100%;
    height: clamp(600px, 56vw, 820px);
    object-fit: cover;
    transition: transform 1.2s var(--ease);
}

.factory-hero:hover>img {
    transform: scale(1.025);
}

.factory-hero figcaption {
    position: absolute;
    z-index: 2;
    inset: auto 0 0;
    padding: clamp(24px, 4vw, 54px);
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 30px;
    color: var(--white);
}

.factory-hero figcaption span {
    color: rgba(255, 255, 255, .58);
    font: 600 .7rem/1.2 "Inter", sans-serif;
    letter-spacing: .14em;
}

.factory-hero figcaption strong {
    font-size: clamp(1.15rem, 2vw, 1.8rem);
}

.capability-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-bottom: 1px solid var(--line);
}

.capability-card {
    min-height: 240px;
    padding: 46px clamp(24px, 3.5vw, 58px);
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 20px;
    border-inline-start: 1px solid var(--line);
}

.capability-card:last-child {
    border-inline-end: 1px solid var(--line);
}

.capability-no {
    color: var(--brand);
    font: 700 .7rem/1 "Inter", sans-serif;
}

.capability-card h3 {
    margin: 0 0 14px;
    font-size: 1.15rem;
}

.capability-card p {
    margin: 0;
    color: var(--muted);
    font-size: .9rem;
}

/* Machines */
.machines {
    color: var(--white);
    background: var(--ink);
}

.machine-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-block-start: 1px solid var(--line-dark);
    border-inline-start: 1px solid var(--line-dark);
}

.machine-card {
    position: relative;
    min-height: 680px;
    padding: clamp(26px, 3.4vw, 52px);
    overflow: hidden;
    border-inline-end: 1px solid var(--line-dark);
    border-block-end: 1px solid var(--line-dark);
    transition: background .4s ease;
}

.machine-card:hover {
    background: var(--ink-card);
}

.machine-card::after {
    content: "";
    position: absolute;
    inset-inline-end: 0;
    inset-block-end: 0;
    width: 0;
    height: 3px;
    background: var(--brand);
    transition: width .45s var(--ease);
}

.machine-card:hover::after {
    width: 100%;
}

.machine-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: rgba(255, 255, 255, .34);
    font: 600 .69rem/1 "Inter", sans-serif;
    letter-spacing: .14em;
}

.machine-card-top b {
    color: var(--white);
    font-size: .75rem;
}

.machine-image {
    height: 310px;
    display: grid;
    place-items: center;
    margin: 26px 0 20px;
}

.machine-image::before {
    content: "";
    position: absolute;
    width: 340px;
    height: 340px;
    background: radial-gradient(circle, rgba(237, 27, 47, .12), transparent 66%);
}

.machine-image img {
    position: relative;
    z-index: 1;
    width: 90%;
    max-height: 300px;
    object-fit: contain;
    filter: drop-shadow(0 25px 30px rgba(0, 0, 0, .45));
    transition: transform .6s var(--ease);
}

.machine-card:hover .machine-image img {
    transform: translateY(-8px) scale(1.035);
}

.machine-meta {
    color: var(--brand);
    font: 700 .72rem/1.2 "Inter", sans-serif;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.machine-body h3 {
    margin: 15px 0 14px;
    font-size: clamp(1.5rem, 2.4vw, 2.5rem);
    line-height: 1.25;
    letter-spacing: -.035em;
}

.machine-body p {
    max-width: 540px;
    margin: 0;
    color: var(--muted-light);
    font-size: .95rem;
}

.machine-body>a {
    display: inline-flex;
    align-items: center;
    gap: 30px;
    margin-top: 26px;
    padding-bottom: 8px;
    color: var(--white);
    border-bottom: 1px solid rgba(255, 255, 255, .45);
    font-size: .84rem;
    font-weight: 700;
}

.machine-body>a span {
    transition: transform .25s var(--ease);
}

.machine-body>a:hover span {
    transform: translate(3px, -3px);
}

/* Manufacturing */
.manufacturing {
    background: var(--white);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-bottom: 120px;
}

.process-card {
    position: relative;
    min-height: 275px;
    padding: 0 30px 36px 0;
}

.process-card>span {
    color: var(--brand);
    font: 700 .7rem/1 "Inter", sans-serif;
    letter-spacing: .1em;
}

.process-line {
    position: relative;
    height: 1px;
    margin: 30px 0 42px;
    background: var(--line);
}

.process-line i {
    position: absolute;
    inset: -4px auto auto 0;
    width: 9px;
    height: 9px;
    border: 2px solid var(--brand);
    border-radius: 50%;
    background: var(--white);
}

.process-card:not(:last-child) .process-line::after {
    content: "";
    position: absolute;
    inset: -4px 10px auto auto;
    width: 8px;
    height: 8px;
    border-top: 1px solid #9b9fa8;
    border-right: 1px solid #9b9fa8;
    transform: rotate(45deg);
}

.process-card h3 {
    margin: 0 0 16px;
    font-size: 1.25rem;
}

.process-card p {
    margin: 0;
    max-width: 260px;
    color: var(--muted);
    font-size: .91rem;
}

.gallery-intro {
    display: flex;
    justify-content: space-between;
    gap: 60px;
    align-items: end;
    margin-bottom: 34px;
}

.gallery-intro .eyebrow {
    margin: 0;
}

.gallery-intro>p:last-child {
    max-width: 530px;
    margin: 0;
    color: var(--muted);
}

.factory-grid {
    display: grid;
    grid-template-columns: 1.25fr .75fr;
    gap: 18px;
}

.factory-shot {
    position: relative;
    min-height: 460px;
    margin: 0;
    overflow: hidden;
    background: #d8dbe0;
}

.factory-shot-wide {
    min-height: 560px;
}

.factory-shot img {
    width: 100%;
    height: 100%;
    min-height: inherit;
    object-fit: cover;
    transition: transform 1s var(--ease), filter .5s ease;
}

.factory-shot:hover img {
    transform: scale(1.035);
}

.factory-shot figcaption {
    position: absolute;
    inset: auto auto 18px 18px;
    padding: 10px 13px;
    color: var(--white);
    background: rgba(7, 9, 13, .75);
    font: 600 .65rem/1 "Inter", sans-serif;
    letter-spacing: .12em;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

/* Engineering */
.engineering {
    color: var(--white);
    background: var(--ink-soft);
}

.engineering-layout {
    display: grid;
    grid-template-columns: minmax(380px, .9fr) minmax(460px, 1.1fr);
    gap: clamp(60px, 10vw, 150px);
    align-items: start;
}

.engineering-sticky {
    position: sticky;
    top: 118px;
}

.engineering-machine {
    position: relative;
    height: 360px;
    display: grid;
    place-items: center;
    margin-top: 54px;
    overflow: hidden;
    border: 1px solid var(--line-dark);
    background: var(--ink);
}

.engineering-machine::before {
    content: "SONLY";
    position: absolute;
    color: rgba(255, 255, 255, .035);
    font: 800 clamp(5rem, 10vw, 9rem)/1 "Inter", sans-serif;
    letter-spacing: -.08em;
}

.engineering-machine img {
    position: relative;
    z-index: 1;
    width: 86%;
    max-height: 310px;
    object-fit: contain;
    filter: drop-shadow(0 20px 26px rgba(0, 0, 0, .6));
}

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

.engineering-item {
    min-height: 210px;
    padding: 40px 0;
    display: grid;
    grid-template-columns: 66px 1fr;
    gap: 26px;
    border-bottom: 1px solid var(--line-dark);
}

.engineering-item>span {
    color: var(--brand);
    font: 700 .7rem/1 "Inter", sans-serif;
}

.engineering-item h3 {
    margin: 0 0 16px;
    font-size: clamp(1.35rem, 2vw, 2rem);
}

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

.turnkey-card {
    margin-top: 48px;
    padding: clamp(32px, 5vw, 64px);
    color: var(--ink);
    background: var(--lime);
}

.turnkey-card small {
    font: 700 .68rem/1 "Inter", sans-serif;
    letter-spacing: .14em;
}

.turnkey-card h3 {
    margin: 38px 0 18px;
    font-size: clamp(1.8rem, 3vw, 3rem);
    line-height: 1.2;
    letter-spacing: -.04em;
}

.turnkey-card p {
    margin: 0;
    opacity: .72;
}

.turnkey-card a {
    display: inline-flex;
    align-items: center;
    gap: 34px;
    margin-top: 32px;
    padding-bottom: 8px;
    border-bottom: 1px solid currentColor;
    font-size: .86rem;
    font-weight: 700;
}

/* Applications */
.applications {
    background: #eef0f3;
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid #cdd1d8;
    border-left: 1px solid #cdd1d8;
}

.application-card {
    position: relative;
    min-height: 235px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-right: 1px solid #cdd1d8;
    border-bottom: 1px solid #cdd1d8;
    transition: color .35s ease, background .35s ease;
}

.application-card:hover {
    color: var(--white);
    background: var(--brand);
}

.application-card>span {
    color: var(--muted);
    font: 700 .68rem/1 "Inter", sans-serif;
}

.application-card:hover>span {
    color: rgba(255, 255, 255, .58);
}

.application-card h3 {
    margin: 60px 36px 0 0;
    font-size: clamp(1.3rem, 2vw, 2rem);
    line-height: 1.25;
}

.application-card i {
    position: absolute;
    inset: 30px 30px auto auto;
    font-style: normal;
    opacity: .48;
    transition: transform .3s var(--ease);
}

.application-card:hover i {
    transform: translate(4px, -4px);
    opacity: 1;
}

/* Quality */
.quality {
    overflow: hidden;
    background: var(--white);
}

.quality-layout {
    display: grid;
    grid-template-columns: minmax(0, .9fr) minmax(440px, 1.1fr);
    gap: clamp(70px, 10vw, 160px);
    align-items: center;
}

.quality-copy {
    max-width: 640px;
    margin: 32px 0 0;
    color: var(--muted);
    font-size: 1.02rem;
}

.quality-badges {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    margin-top: 44px;
    background: var(--line);
    border: 1px solid var(--line);
}

.quality-badges span {
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--white);
    font-size: .88rem;
    font-weight: 700;
}

.quality-badges i {
    width: 24px;
    height: 24px;
    display: grid;
    place-items: center;
    color: var(--white);
    background: var(--brand);
    border-radius: 50%;
    font-style: normal;
    font-size: .7rem;
}

.certificate-stack {
    position: relative;
    min-height: 760px;
}

.certificate {
    position: absolute;
    width: 56%;
    margin: 0;
    padding: 16px;
    background: #e7e9ed;
    box-shadow: 0 30px 70px rgba(19, 22, 31, .18);
}

.certificate img {
    width: 100%;
    aspect-ratio: .74;
    object-fit: contain;
    background: var(--white);
}

.certificate-one {
    inset: 0 auto auto 2%;
    transform: rotate(-5deg);
}

.certificate-two {
    inset: 96px 0 auto auto;
    transform: rotate(5deg);
}

.certificate-count {
    position: absolute;
    z-index: 3;
    inset: auto 0 30px auto;
    width: 158px;
    height: 158px;
    padding: 28px;
    display: grid;
    place-items: center;
    align-content: center;
    color: var(--white);
    background: var(--brand);
    border-radius: 50%;
    font: 800 2.7rem/1 "Inter", sans-serif;
}

.certificate-count small {
    margin-top: 8px;
    font-size: .58rem;
    letter-spacing: .1em;
}

/* Service */
.service {
    position: relative;
    overflow: hidden;
    color: var(--white);
    background: var(--ink);
}

.service::before {
    content: "GLOBAL";
    position: absolute;
    inset: 30px auto auto 50%;
    color: rgba(255, 255, 255, .025);
    font: 800 clamp(8rem, 22vw, 24rem)/1 "Inter", sans-serif;
    letter-spacing: -.09em;
    transform: translateX(-50%);
}

.service-heading {
    position: relative;
    z-index: 2;
    text-align: center;
}

.service-heading .eyebrow {
    justify-content: center;
}

.service-heading h2 {
    margin-inline: auto;
}

.service-heading>p {
    max-width: 680px;
    margin: 32px auto 0;
}

.service-map {
    position: relative;
    margin-top: 48px;
    min-height: 480px;
    display: grid;
    place-items: center;
}

.service-map img {
    width: 100%;
    max-height: 700px;
    object-fit: contain;
    opacity: .78;
    filter: saturate(.2) contrast(1.08);
}

.map-pulse {
    position: absolute;
    width: 10px;
    height: 10px;
    border: 2px solid var(--white);
    border-radius: 50%;
    background: var(--brand);
    box-shadow: 0 0 0 0 rgba(237, 27, 47, .65);
    animation: mapPulse 2.3s ease-out infinite;
}

.map-pulse-one {
    inset: 46% auto auto 70%;
}

.map-pulse-two {
    inset: 56% auto auto 23%;
    animation-delay: .6s;
}

.map-pulse-three {
    inset: 62% auto auto 49%;
    animation-delay: 1.1s;
}

@keyframes mapPulse {

    70%,
    100% {
        box-shadow: 0 0 0 18px rgba(237, 27, 47, 0);
    }
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid var(--line-dark);
    border-left: 1px solid var(--line-dark);
}

.service-card {
    min-height: 250px;
    padding: 32px;
    border-right: 1px solid var(--line-dark);
    border-bottom: 1px solid var(--line-dark);
}

.service-card>span {
    color: var(--brand);
    font: 700 .7rem/1 "Inter", sans-serif;
}

.service-card h3 {
    margin: 54px 0 16px;
    font-size: 1.2rem;
}

.service-card p {
    margin: 0;
    color: var(--muted-light);
    font-size: .88rem;
}

/* Contact */
.contact {
    color: var(--white);
    background: var(--brand);
}

.contact .eyebrow-light {
    color: rgba(255, 255, 255, .72);
}

.contact .eyebrow>span {
    background: var(--white);
}

.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, .85fr) minmax(500px, 1.15fr);
    gap: clamp(70px, 10vw, 160px);
    align-items: start;
}

.contact-copy>p:not(.eyebrow) {
    max-width: 650px;
    margin: 30px 0 0;
    color: rgba(255, 255, 255, .76);
    font-size: 1.05rem;
}

.direct-contact,
.contact-location {
    margin-top: 48px;
    padding-top: 22px;
    display: grid;
    gap: 8px;
    border-top: 1px solid rgba(255, 255, 255, .28);
}

.direct-contact>span,
.contact-location>span {
    margin-bottom: 8px;
    color: rgba(255, 255, 255, .56);
    font: 700 .68rem/1 "Inter", sans-serif;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.direct-contact a,
.contact-location strong {
    width: fit-content;
    font-size: clamp(1.2rem, 2vw, 1.8rem);
    font-weight: 700;
    line-height: 1.4;
}

.direct-contact a:hover {
    text-decoration: underline;
    text-underline-offset: 5px;
}

.contact-location p {
    margin: 0;
    color: rgba(255, 255, 255, .72);
    font-size: .9rem;
}

.wechat-mini {
    margin-top: 38px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 18px;
    width: fit-content;
    color: var(--text);
    background: var(--white);
}

.wechat-mini img {
    width: 88px;
    height: 88px;
    object-fit: contain;
}

.wechat-mini strong,
.wechat-mini span {
    display: block;
}

.wechat-mini strong {
    margin-bottom: 6px;
}

.wechat-mini span {
    max-width: 220px;
    color: var(--muted);
    font-size: .8rem;
}

.quote-form {
    padding: clamp(30px, 4vw, 58px);
    color: var(--text);
    background: var(--white);
    box-shadow: 0 35px 90px rgba(93, 0, 8, .22);
}

.form-header {
    padding-bottom: 26px;
    border-bottom: 1px solid var(--line);
}

.form-header span {
    color: var(--brand);
    font: 700 .68rem/1 "Inter", sans-serif;
    letter-spacing: .14em;
}

.form-header h3 {
    margin: 13px 0 0;
    font-size: clamp(1.5rem, 2.4vw, 2.4rem);
    line-height: 1.2;
    letter-spacing: -.035em;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 18px;
    margin-top: 30px;
}

.form-grid label {
    display: grid;
    gap: 9px;
}

.form-grid label>span {
    font-size: .76rem;
    font-weight: 700;
}

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

.form-grid input,
.form-grid textarea,
.form-grid select {
    width: 100%;
    min-height: 52px;
    padding: 13px 14px;
    color: var(--text);
    background: #f5f6f8;
    border: 1px solid transparent;
    border-radius: 0;
    outline: 0;
    font-size: .9rem;
    transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

.form-grid textarea {
    min-height: 126px;
    resize: vertical;
}

.form-grid input:focus,
.form-grid textarea:focus,
.form-grid select:focus {
    background: var(--white);
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(237, 27, 47, .1);
}

.form-grid .is-invalid {
    border-color: var(--brand);
    background: #fff6f7;
}

.form-feedback {
    display: none;
    margin-top: 18px;
    padding: 12px 14px;
    color: #8d0d19;
    background: #fff1f2;
    font-size: .82rem;
    font-weight: 600;
}

.form-feedback.is-visible {
    display: block;
}

.form-submit {
    width: 100%;
    min-height: 62px;
    margin-top: 22px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--white);
    background: var(--ink);
    border: 0;
    cursor: pointer;
    font-weight: 700;
    transition: background .25s ease, transform .25s var(--ease);
}

.form-submit:hover {
    background: var(--brand);
    transform: translateY(-2px);
}

.form-submit i {
    font-style: normal;
    font-size: 1.1rem;
}

.form-privacy {
    margin: 13px 0 0;
    color: var(--muted);
    font-size: .73rem;
}

/* Footer */
.site-footer {
    color: var(--white);
    background: #05060a;
}

.footer-top {
    padding-block: 78px;
    display: grid;
    grid-template-columns: minmax(280px, 1.4fr) .55fr .8fr auto;
    gap: clamp(36px, 7vw, 100px);
}

.footer-logo {
    display: inline-block;
    color: var(--white);
    font: 800 clamp(2.8rem, 5vw, 5rem)/1 "Inter", sans-serif;
    letter-spacing: -.08em;
}

.footer-brand p {
    max-width: 430px;
    margin: 22px 0 16px;
    color: var(--muted-light);
}

.footer-brand>span {
    color: var(--brand);
    font-size: .75rem;
    font-weight: 700;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 11px;
}

.footer-links strong {
    margin-bottom: 10px;
    color: rgba(255, 255, 255, .42);
    font: 700 .68rem/1 "Inter", sans-serif;
    letter-spacing: .14em;
    text-transform: uppercase;
}

.footer-links a {
    width: fit-content;
    color: rgba(255, 255, 255, .76);
    font-size: .88rem;
}

.footer-links a:hover {
    color: var(--white);
}

.back-top {
    width: 84px;
    height: 84px;
    display: grid;
    place-items: center;
    align-content: center;
    gap: 5px;
    color: var(--white);
    border: 1px solid var(--line-dark);
    border-radius: 50%;
    font-size: .62rem;
    text-align: center;
    transition: color .25s ease, background .25s ease;
}

.back-top span {
    font-size: 1.15rem;
}

.back-top:hover {
    color: var(--ink);
    background: var(--white);
}

.footer-bottom {
    padding-block: 25px;
    display: flex;
    justify-content: space-between;
    gap: 30px;
    color: rgba(255, 255, 255, .38);
    border-top: 1px solid var(--line-dark);
    font: 500 .65rem/1.5 "Inter", sans-serif;
    letter-spacing: .06em;
}

.whatsapp-float {
    position: fixed;
    z-index: 800;
    inset: auto 26px 26px auto;
    width: 58px;
    height: 58px;
    display: grid;
    place-items: center;
    color: var(--white);
    background: #19a85a;
    border-radius: 50%;
    box-shadow: 0 14px 34px rgba(0, 0, 0, .2);
    font: 800 .72rem/1 "Inter", sans-serif;
    transition: transform .25s var(--ease);
}

.whatsapp-float:hover {
    transform: translateY(-4px) scale(1.04);
}

.whatsapp-float i {
    position: absolute;
    inset: -5px;
    border: 1px solid rgba(25, 168, 90, .48);
    border-radius: 50%;
    animation: waPulse 2.2s ease-out infinite;
}

@keyframes waPulse {

    70%,
    100% {
        transform: scale(1.24);
        opacity: 0;
    }
}

/* Reveal */
.reveal {
    opacity: 0;
    transform: translateY(34px);
    transition: opacity .85s var(--ease), transform .85s var(--ease);
}

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

/* Responsive */
@media (max-width: 1180px) {
    :root {
        --shell: min(100% - 56px, 1180px);
    }

    .desktop-nav {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .hero-shell {
        grid-template-columns: minmax(0, .9fr) minmax(400px, 1.1fr);
    }

    .hero-machine-wrap {
        width: min(680px, 58vw);
    }

    .machine-card {
        min-height: 640px;
    }

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

    .footer-top {
        grid-template-columns: 1.25fr .55fr .8fr;
    }

    .back-top {
        grid-column: 3;
        justify-self: end;
    }
}

@media (max-width: 960px) {
    :root {
        --header-height: 76px;
    }

    .hero {
        min-height: auto;
    }

    .hero-shell {
        min-height: auto;
        padding-top: 150px;
        padding-bottom: 130px;
        grid-template-columns: 1fr;
    }

    .hero-copy {
        max-width: 760px;
    }

    .hero-visual {
        min-height: 480px;
    }

    .hero-machine-wrap {
        width: min(760px, 90vw);
    }

    .hero-spec-card {
        inset-inline-start: 3%;
    }

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

    .metric-card:nth-child(2) {
        border-inline-end: 0;
    }

    .metric-card:nth-child(-n+2) {
        border-bottom: 1px solid rgba(255, 255, 255, .26);
    }

    .company-layout,
    .engineering-layout,
    .quality-layout,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .company-copy {
        padding-top: 0;
    }

    .split-heading {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .process-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .process-card {
        min-height: 220px;
    }

    .engineering-sticky {
        position: static;
    }

    .engineering-machine {
        height: 440px;
    }

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

    .certificate-stack {
        min-height: 690px;
    }

    .contact-layout {
        gap: 72px;
    }

    .footer-top {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .back-top {
        grid-column: auto;
        justify-self: end;
    }
}

@media (max-width: 720px) {
    :root {
        --shell: calc(100% - 34px);
        --header-height: 72px;
    }

    body {
        font-size: 16px;
    }

    .section-space {
        padding-block: 88px;
    }

    .site-header,
    .site-header.is-scrolled {
        height: var(--header-height);
    }

    .brand img {
        width: 108px;
        height: 38px;
    }

    .header-cta {
        display: none;
    }

    .language-switch {
        font-size: .76rem;
    }

    .header-actions {
        gap: 10px;
    }

    .menu-toggle {
        width: 44px;
        height: 44px;
    }

    .menu-toggle span:first-child {
        top: 17px;
    }

    .menu-toggle span:last-child {
        top: 25px;
    }

    .menu-toggle.is-open span:first-child,
    .menu-toggle.is-open span:last-child {
        top: 21px;
    }

    .hero-shell {
        padding-top: 130px;
        padding-bottom: 105px;
        gap: 18px;
    }

    .hero-copy h1 {
        font-size: clamp(2.8rem, 14vw, 4.8rem);
    }

    html[data-language="zh"] .hero-copy h1 {
        font-size: clamp(2.7rem, 13vw, 4.5rem);
    }

    .hero-intro {
        margin-top: 26px;
    }

    .hero-actions {
        display: grid;
        margin-top: 32px;
    }

    .button {
        width: 100%;
    }

    .hero-visual {
        min-height: 340px;
    }

    .hero-machine-wrap {
        width: 100%;
        padding: 8px;
        transform: none;
    }

    .hero-machine {
        aspect-ratio: 1.4;
    }

    .hero-spec-card {
        inset: auto auto 12px 0;
        width: 210px;
    }

    .hero-index {
        inset-block-start: 0;
        font-size: 5.4rem;
    }

    .hero-origin {
        display: none;
    }

    .hero-footer {
        bottom: 20px;
    }

    .hero-orbit-one {
        width: 480px;
        height: 480px;
        right: -270px;
    }

    .hero-orbit-two {
        display: none;
    }

    .metrics-grid {
        width: 100%;
    }

    .metric-card {
        min-height: 140px;
        padding: 24px 17px;
    }

    .metric-card strong {
        font-size: clamp(2rem, 10vw, 3rem);
    }

    .metric-card>span {
        font-size: .74rem;
    }

    .display-title {
        font-size: clamp(2.15rem, 10vw, 3.6rem);
    }

    .company-layout {
        gap: 34px;
    }

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

    .company-media {
        width: 100%;
        margin-top: 62px;
    }

    .factory-hero {
        min-height: 500px;
    }

    .factory-hero>img {
        height: 500px;
    }

    .factory-hero figcaption {
        align-items: start;
        flex-direction: column-reverse;
        gap: 10px;
    }

    .capability-grid {
        grid-template-columns: 1fr;
        width: 100%;
    }

    .capability-card {
        min-height: auto;
        padding: 32px 22px;
        border-inline-end: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
    }

    .machine-grid {
        grid-template-columns: 1fr;
        width: 100%;
        border-left: 0;
    }

    .machine-card {
        min-height: 600px;
        padding: 28px 18px;
        border-left: 0;
        border-right: 0;
    }

    .machine-image {
        height: 250px;
    }

    .machine-body h3 {
        font-size: 1.7rem;
    }

    .process-grid {
        grid-template-columns: 1fr;
        margin-bottom: 72px;
    }

    .process-card {
        min-height: auto;
        padding-bottom: 10px;
    }

    .gallery-intro {
        align-items: start;
        flex-direction: column;
        gap: 18px;
    }

    .factory-grid {
        grid-template-columns: 1fr;
        width: 100%;
        gap: 8px;
    }

    .factory-shot,
    .factory-shot-wide {
        min-height: 390px;
    }

    .engineering-layout {
        gap: 56px;
    }

    .engineering-machine {
        height: 300px;
    }

    .engineering-item {
        min-height: auto;
        grid-template-columns: 42px 1fr;
    }

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

    .application-card {
        min-height: 190px;
    }

    .quality-layout {
        gap: 60px;
    }

    .quality-badges {
        grid-template-columns: 1fr;
    }

    .certificate-stack {
        min-height: 520px;
    }

    .certificate {
        width: 63%;
        padding: 8px;
    }

    .certificate-two {
        top: 70px;
    }

    .certificate-count {
        width: 120px;
        height: 120px;
        padding: 20px;
        font-size: 2rem;
        bottom: 10px;
    }

    .service-map {
        width: 100%;
        min-height: 350px;
        overflow: hidden;
    }

    .service-map img {
        width: 150%;
        max-width: none;
    }

    .service-grid {
        grid-template-columns: 1fr;
        width: 100%;
        border-left: 0;
    }

    .service-card {
        min-height: 220px;
        border-left: 0;
        border-right: 0;
    }

    .quote-form {
        width: 100%;
        padding: 28px 18px;
    }

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

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

    .footer-top {
        grid-template-columns: 1fr;
        padding-block: 60px;
    }

    .footer-brand {
        grid-column: auto;
    }

    .back-top {
        grid-column: auto;
        justify-self: start;
    }

    .footer-bottom {
        flex-direction: column;
    }

    .whatsapp-float {
        right: 17px;
        bottom: 17px;
        width: 54px;
        height: 54px;
    }
}

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

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

    .reveal {
        opacity: 1;
        transform: none;
    }
}