:root {
    --ink: #11110f;
    --ink-soft: #24241f;
    --paper: #f4f2ec;
    --paper-deep: #eae7dd;
    --white: #fffefa;
    --muted: #6d6b63;
    --line: rgba(17, 17, 15, 0.14);
    --acid: #dfff00;
    --acid-soft: #efffa0;
    --violet: #8e7dff;
    --violet-dark: #6554e8;
    --radius: 24px;
    --container: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    overflow-x: hidden;
    color: var(--ink);
    background: var(--paper);
    font-family: "DM Sans", "Noto Sans TC", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }
::selection { color: var(--ink); background: var(--acid); }

.skip-link {
    position: fixed;
    top: -80px;
    left: 20px;
    z-index: 1000;
    padding: 10px 16px;
    color: var(--white);
    background: var(--ink);
    border-radius: 8px;
    transition: top .2s;
}
.skip-link:focus { top: 16px; }

.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 100;
    color: var(--white);
    transition: color .3s, background .3s, box-shadow .3s;
}
.site-header.scrolled {
    color: var(--ink);
    background: rgba(244, 242, 236, .9);
    box-shadow: 0 1px 0 var(--line);
    backdrop-filter: blur(18px);
}
.nav-wrap {
    width: min(calc(100% - 48px), var(--container));
    height: 82px;
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -.03em;
    text-decoration: none;
}
.brand-muted { font-weight: 400; opacity: .65; }
.brand-mark { position: relative; width: 27px; height: 27px; display: inline-block; }
.brand-mark i { position: absolute; width: 17px; height: 17px; border: 2px solid currentColor; border-radius: 50%; }
.brand-mark i:first-child { top: 1px; left: 1px; }
.brand-mark i:last-child { right: 1px; bottom: 1px; background: var(--acid); border-color: var(--acid); mix-blend-mode: normal; }
.site-header.scrolled .brand-mark i:last-child, .footer-brand .brand-mark i:last-child { border-color: var(--ink); }

.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav > a {
    position: relative;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
}
.site-nav > a:not(.nav-cta)::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: -5px;
    left: 0;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform .25s;
}
.site-nav > a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-cta {
    padding: 10px 17px;
    color: var(--ink);
    background: var(--acid);
    border-radius: 100px;
    transition: transform .2s, box-shadow .2s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 7px 20px rgba(223, 255, 0, .22); }
.menu-toggle { display: none; }

.hero {
    position: relative;
    min-height: 820px;
    overflow: hidden;
    color: var(--white);
    background: var(--ink);
    isolation: isolate;
}
.hero-grid {
    position: absolute;
    inset: 0;
    z-index: -3;
    opacity: .16;
    background-image: linear-gradient(rgba(255,255,255,.11) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.11) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: linear-gradient(to bottom, black, transparent 87%);
}
.hero-glow { position: absolute; z-index: -2; border-radius: 50%; filter: blur(10px); pointer-events: none; }
.glow-one { width: 580px; height: 580px; top: -300px; right: 5%; background: radial-gradient(circle, rgba(142,125,255,.45), transparent 66%); }
.glow-two { width: 420px; height: 420px; bottom: -270px; left: -120px; background: radial-gradient(circle, rgba(223,255,0,.16), transparent 68%); }
.hero-layout {
    min-height: 760px;
    padding-top: 130px;
    padding-bottom: 80px;
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(420px, .88fr);
    align-items: center;
    gap: 70px;
}
.eyebrow, .section-index {
    margin: 0 0 28px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .18em;
}
.eyebrow { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.62); }
.eyebrow span { width: 7px; height: 7px; background: var(--acid); border-radius: 50%; box-shadow: 0 0 12px var(--acid); }
.hero h1 {
    margin: 0;
    max-width: 750px;
    font-family: "Noto Sans TC", sans-serif;
    font-size: clamp(46px, 5.5vw, 76px);
    font-weight: 900;
    line-height: 1.16;
    letter-spacing: -.055em;
}
.accent-text { position: relative; z-index: 0; color: var(--ink); white-space: nowrap; }
.accent-text::before {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 9% -4% 2% -3%;
    background: var(--acid);
    border-radius: 4px;
    transform: rotate(-1.5deg);
}
.hero-lead { max-width: 620px; margin: 32px 0 0; color: rgba(255,255,255,.63); font-size: clamp(17px, 2vw, 20px); line-height: 1.8; }
.hero-actions { display: flex; align-items: center; gap: 12px; margin-top: 38px; }
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    min-height: 54px;
    padding: 0 24px;
    border: 1px solid transparent;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: transform .2s, color .2s, background .2s, border-color .2s;
}
.button:hover { transform: translateY(-3px); }
.button-primary { color: var(--ink); background: var(--acid); }
.button-ghost { color: var(--white); border-color: rgba(255,255,255,.22); }
.button-ghost:hover { color: var(--ink); background: var(--white); border-color: var(--white); }

.hero-visual { position: relative; aspect-ratio: 1; max-width: 500px; width: 100%; margin-left: auto; }
.orbit { position: absolute; border: 1px solid rgba(255,255,255,.13); border-radius: 50%; }
.orbit::before, .orbit::after { content: ""; position: absolute; width: 6px; height: 6px; background: var(--acid); border-radius: 50%; box-shadow: 0 0 15px var(--acid); }
.orbit-outer { inset: 2%; animation: spin 30s linear infinite; }
.orbit-outer::before { top: 17%; left: 7%; }
.orbit-outer::after { right: -3px; top: 48%; background: var(--violet); box-shadow: 0 0 15px var(--violet); }
.orbit-inner { inset: 19%; border-style: dashed; animation: spinReverse 22s linear infinite; }
.orbit-inner::before { top: -3px; left: 50%; }
.orbit-inner::after { bottom: 6%; left: 16%; }
.visual-core {
    position: absolute;
    inset: 29%;
    padding: 25px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(145deg, #292825, #171714);
    border: 1px solid rgba(255,255,255,.13);
    border-radius: 28px;
    box-shadow: 0 30px 80px rgba(0,0,0,.42), inset 0 1px rgba(255,255,255,.08);
    transform: rotate(-4deg);
}
.core-label { color: rgba(255,255,255,.42); font-size: 8px; letter-spacing: .2em; }
.visual-core strong { margin-top: 8px; font-size: clamp(24px, 3vw, 37px); line-height: 1.05; letter-spacing: -.06em; }
.core-status { position: absolute; right: 20px; bottom: 18px; left: 20px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.5); font-size: 8px; }
.core-status i { display: inline-block; width: 5px; height: 5px; margin-right: 5px; background: var(--acid); border-radius: 50%; }
.skill-chip {
    position: absolute;
    z-index: 2;
    min-width: 94px;
    padding: 11px 16px;
    color: var(--ink);
    background: var(--white);
    border-radius: 13px;
    box-shadow: 0 15px 35px rgba(0,0,0,.28);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .06em;
    animation: float 5s ease-in-out infinite;
}
.skill-chip span { display: block; margin-bottom: 2px; color: #949188; font-size: 8px; }
.chip-ai { top: 12%; left: 7%; transform: rotate(-7deg); }
.chip-web { top: 16%; right: 0; color: var(--white); background: var(--violet); transform: rotate(6deg); animation-delay: -1s; }
.chip-wp { bottom: 14%; left: 3%; transform: rotate(5deg); animation-delay: -2.5s; }
.chip-laravel { right: 0; bottom: 10%; color: var(--ink); background: var(--acid); transform: rotate(-5deg); animation-delay: -3.8s; }
.visual-note { position: absolute; color: rgba(255,255,255,.33); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; }
.note-top { top: 1%; left: 40%; }
.note-bottom { right: 31%; bottom: 0; }

.service-marquee { position: absolute; right: 0; bottom: 0; left: 0; overflow: hidden; color: var(--ink); background: var(--acid); transform: rotate(-1deg) scale(1.02); }
.marquee-track { display: flex; width: max-content; align-items: center; gap: 28px; padding: 13px 0; animation: marquee 32s linear infinite; font-size: 12px; font-weight: 700; letter-spacing: .15em; white-space: nowrap; }
.marquee-track i { font-style: normal; font-size: 10px; }

.section { padding: 128px 0; }
.section-index { color: var(--muted); }
.display-title {
    margin: 0;
    font-family: "Noto Sans TC", sans-serif;
    font-size: clamp(40px, 5vw, 67px);
    font-weight: 900;
    line-height: 1.22;
    letter-spacing: -.055em;
}
.display-title span { color: var(--violet-dark); }
.intro-section { padding-top: 150px; }
.intro-grid { display: grid; grid-template-columns: 190px 1fr; gap: 30px; }
.intro-copy { display: grid; grid-template-columns: 1.25fr .75fr; gap: 70px; align-items: end; }
.intro-detail { padding-bottom: 7px; }
.intro-detail > p { margin: 0 0 30px; color: var(--muted); font-size: 16px; }
.principles { display: flex; flex-wrap: wrap; gap: 8px; }
.principles span { padding: 7px 12px; border: 1px solid var(--line); border-radius: 100px; color: var(--ink-soft); font-size: 12px; }

.services-section { background: var(--paper-deep); }
.section-heading { margin-bottom: 68px; display: grid; grid-template-columns: 1fr 360px; align-items: end; gap: 80px; }
.section-heading .section-index { margin-bottom: 22px; }
.section-summary { margin: 0 0 8px; color: var(--muted); font-size: 16px; }
.services-list { border-top: 1px solid var(--line); }
.service-card {
    position: relative;
    min-height: 285px;
    padding: 46px 0;
    display: grid;
    grid-template-columns: 72px 190px 1fr;
    gap: 28px;
    border-bottom: 1px solid var(--line);
    transition: padding .35s, background .35s;
}
.service-card::before { content: ""; position: absolute; z-index: 0; inset: 0 -28px; background: var(--white); border-radius: 18px; opacity: 0; transform: scaleY(.88); transition: opacity .35s, transform .35s; }
.service-card:hover::before { opacity: 1; transform: scaleY(1); }
.service-card > * { position: relative; z-index: 1; }
.service-number { padding-top: 4px; color: #97948b; font-size: 11px; font-weight: 700; }
.service-icon { width: 142px; height: 142px; display: grid; place-items: center; color: var(--ink); background: var(--acid-soft); border-radius: 50%; transition: transform .4s, background .3s; }
.service-card:nth-child(even) .service-icon { color: var(--white); background: var(--violet); }
.service-card:hover .service-icon { transform: rotate(-8deg) scale(1.04); }
.service-content { display: grid; grid-template-columns: minmax(240px, .8fr) minmax(270px, 1fr); column-gap: 60px; align-items: start; }
.service-content h3 { margin: 0; font-family: "Noto Sans TC", sans-serif; font-size: clamp(27px, 3vw, 38px); line-height: 1.3; letter-spacing: -.04em; }
.service-content p { grid-column: 2; margin: 5px 0 20px; color: var(--muted); }
.service-content ul { grid-column: 2; margin: 0; padding: 0; list-style: none; }
.service-content li { position: relative; padding: 7px 0 7px 18px; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 13px; }
.service-content li::before { content: "+"; position: absolute; left: 0; font-weight: 700; }
.icon-spark span { width: 57px; height: 57px; background: currentColor; clip-path: polygon(50% 0, 61% 38%, 100% 50%, 61% 62%, 50% 100%, 39% 62%, 0 50%, 39% 38%); }
.icon-window span { width: 67px; height: 50px; border: 3px solid currentColor; border-radius: 6px; box-shadow: 10px 10px 0 transparent, 10px 10px 0 2px currentColor; }
.icon-blocks { display: flex; align-items: center; justify-content: center; gap: 4px; }
.icon-blocks span { width: 24px; height: 52px; border: 3px solid currentColor; border-radius: 3px; transform: translateY(7px); }
.icon-blocks span:nth-child(2) { transform: translateY(-7px); }
.icon-code span { font-size: 28px; font-weight: 700; letter-spacing: -.1em; }

.product-section { overflow: hidden; color: var(--white); background: var(--ink); }
.product-section .section-index, .product-section .section-summary { color: rgba(255,255,255,.48); }
.featured-product {
    position: relative;
    min-height: 540px;
    overflow: hidden;
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    color: var(--ink);
    background: var(--acid);
    border-radius: 32px;
    text-decoration: none;
    isolation: isolate;
}
.featured-product::before { content: ""; position: absolute; z-index: -1; width: 580px; height: 580px; right: -90px; top: -120px; background: var(--violet); border-radius: 50%; transition: transform .6s cubic-bezier(.2,.8,.2,1); }
.featured-product:hover::before { transform: scale(1.1); }
.product-copy { padding: 65px 50px; display: flex; flex-direction: column; align-items: flex-start; }
.product-meta { font-size: 10px; font-weight: 700; letter-spacing: .13em; }
.product-meta span:not(.live-dot) { opacity: .4; margin: 0 8px; }
.live-dot { display: inline-block; width: 7px; height: 7px; margin-right: 7px; background: var(--ink); border-radius: 50%; animation: pulse 2s infinite; }
.product-brand { display: flex; align-items: center; gap: 20px; margin-top: 70px; }
.product-brand img {
    width: 78px;
    height: 78px;
    padding: 7px;
    background: var(--ink);
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 22px;
    box-shadow: 0 14px 30px rgba(17,17,15,.28);
}
.product-brand h3 { margin: 0; font-size: clamp(50px, 6vw, 76px); letter-spacing: -.07em; }
.product-copy > p { max-width: 500px; margin: 28px 0; font-size: 16px; }
.product-more { margin: 28px 0 0; text-align: right; }
.product-more a { display: inline-flex; align-items: center; gap: 10px; padding-bottom: 4px; border-bottom: 1px solid rgba(255,255,255,.3); color: rgba(255,255,255,.72); font-size: 14px; font-weight: 700; text-decoration: none; transition: color .25s, border-color .25s; }
.product-more a:hover, .product-more a:focus-visible { color: var(--white); border-color: var(--white); }
.product-more a span { transition: transform .25s; }
.product-more a:hover span { transform: translateX(4px); }
.text-link { margin-top: auto; padding-bottom: 4px; border-bottom: 1px solid currentColor; font-size: 14px; font-weight: 700; }
.text-link i { display: inline-block; margin-left: 30px; font-style: normal; transition: transform .25s; }
.featured-product:hover .text-link i { transform: translate(4px,-4px); }
.product-demo { position: relative; display: flex; align-items: flex-end; justify-content: center; }
.phone-frame {
    position: relative;
    z-index: 2;
    width: 315px;
    height: 470px;
    overflow: hidden;
    padding: 16px;
    color: var(--ink);
    background: #f6f6f3;
    border: 8px solid #1c1c19;
    border-bottom: 0;
    border-radius: 38px 38px 0 0;
    box-shadow: 0 30px 70px rgba(17,17,15,.3);
    transform: rotate(3deg) translateY(12px);
    transition: transform .5s cubic-bezier(.2,.8,.2,1);
}
.featured-product:hover .phone-frame { transform: rotate(0) translateY(0); }
.phone-bar { margin: -16px -16px 0; padding: 17px 18px; display: flex; align-items: center; justify-content: space-between; background: #fff; border-bottom: 1px solid #e8e8e3; font-size: 11px; }
.phone-bar > span { width: 15px; height: 15px; border-bottom: 2px solid; border-left: 2px solid; transform: rotate(45deg); }
.phone-bar i { font-style: normal; letter-spacing: 2px; }
.chat-date { margin: 18px 0; color: #9b9b95; font-size: 9px; text-align: center; }
.chat-row { display: flex; align-items: flex-start; gap: 8px; }
.chat-row img { width: 29px; height: 29px; border-radius: 8px; }
.chat-bubble { padding: 12px 14px; background: #fff; border-radius: 4px 16px 16px; box-shadow: 0 4px 16px rgba(17,17,15,.06); }
.chat-bubble span, .chat-bubble strong { display: block; }
.chat-label { color: #8e8e88; font-size: 9px; }
.chat-bubble strong { margin: 4px 0; font-size: 13px; }
.chat-bubble p { margin: 8px 0 0; padding-top: 8px; border-top: 1px solid #eee; font-size: 10px; line-height: 1.7; }
.chat-user { max-width: 190px; margin: 18px 0 0 auto; padding: 11px 13px; background: #9bea6c; border-radius: 15px 4px 15px 15px; font-size: 10px; }
.typing { width: 56px; margin: 18px 0 0 37px; padding: 9px 12px; display: flex; gap: 4px; background: #fff; border-radius: 14px; }
.typing i { width: 5px; height: 5px; background: #aaa; border-radius: 50%; animation: typing 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: .15s; }.typing i:nth-child(3) { animation-delay: .3s; }
.demo-orbit { position: absolute; width: 560px; height: 560px; bottom: -280px; border: 1px solid rgba(255,255,255,.3); border-radius: 50%; }

.process-section { background: var(--paper); }
.process-list { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); list-style: none; }
.process-list li { position: relative; min-height: 285px; padding: 28px 28px 18px 0; border-right: 1px solid var(--line); }
.process-list li:not(:first-child) { padding-left: 28px; }
.process-list li:last-child { border-right: 0; }
.process-list li > span { color: #98958d; font-size: 11px; font-weight: 700; }
.process-list li > div { position: absolute; right: 28px; bottom: 20px; left: 0; }
.process-list li:not(:first-child) > div { left: 28px; }
.process-list h3 { margin: 0 0 12px; font-size: 21px; letter-spacing: -.03em; }
.process-list p { margin: 0; color: var(--muted); font-size: 13px; }
.process-list li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; background: var(--violet); border-radius: 50%; opacity: 0; transform: scale(0); transition: opacity .25s, transform .25s; }
.process-list li:hover::before { opacity: 1; transform: scale(1); }

.contact-section { position: relative; overflow: hidden; padding: 135px 0 125px; color: var(--white); background: var(--violet-dark); text-align: center; isolation: isolate; }
.contact-glow { position: absolute; z-index: -1; width: 700px; height: 700px; top: -450px; left: calc(50% - 350px); background: radial-gradient(circle, rgba(223,255,0,.28), transparent 68%); }
.contact-inner { display: flex; flex-direction: column; align-items: center; }
.contact-section .section-index { color: rgba(255,255,255,.55); }
.contact-section h2 { margin: 0; font-family: "Noto Sans TC", sans-serif; font-size: clamp(52px, 7.5vw, 96px); font-weight: 900; line-height: 1.12; letter-spacing: -.065em; }
.contact-section h2 span { color: var(--acid); }
.contact-section p:not(.section-index) { margin: 30px 0; color: rgba(255,255,255,.7); }
.email-link { display: flex; align-items: center; gap: 30px; padding: 15px 0; border-bottom: 2px solid rgba(255,255,255,.55); font-size: clamp(19px, 3vw, 31px); font-weight: 500; text-decoration: none; transition: color .25s, border-color .25s; }
.email-link i { font-style: normal; transition: transform .25s; }
.email-link:hover { color: var(--acid); border-color: var(--acid); }
.email-link:hover i { transform: translate(5px,-5px); }
.contact-footnote { margin-top: 24px; display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.46); font-size: 11px; }
.contact-footnote span { width: 6px; height: 6px; background: var(--acid); border-radius: 50%; }

.site-footer { padding: 30px 0; color: var(--white); background: var(--ink); }
.footer-inner { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
.footer-inner > p { margin: 0; color: rgba(255,255,255,.42); font-size: 11px; }
.footer-inner > p:last-child { text-align: right; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.8,.2,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes spinReverse { to { transform: rotate(-360deg); } }
@keyframes float { 0%,100% { margin-top: 0; } 50% { margin-top: -10px; } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(17,17,15,.3); } 50% { box-shadow: 0 0 0 6px rgba(17,17,15,0); } }
@keyframes typing { 0%,60%,100% { transform: translateY(0); opacity: .45; } 30% { transform: translateY(-3px); opacity: 1; } }

@media (max-width: 1020px) {
    .hero-layout { grid-template-columns: 1fr 390px; gap: 20px; }
    .hero-visual { transform: scale(.88); transform-origin: center right; }
    .intro-grid { grid-template-columns: 1fr; }
    .intro-copy { grid-template-columns: 1.1fr .9fr; }
    .service-card { grid-template-columns: 50px 160px 1fr; }
    .service-icon { width: 125px; height: 125px; }
    .service-content { grid-template-columns: 1fr; gap: 15px; }
    .service-content p, .service-content ul { grid-column: 1; }
    .featured-product { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 800px) {
    .container, .nav-wrap { width: min(calc(100% - 36px), var(--container)); }
    .site-header { color: var(--white); }
    .nav-wrap { height: 70px; }
    .menu-toggle { position: relative; z-index: 2; width: 42px; height: 42px; padding: 0; display: block; color: inherit; background: transparent; border: 0; cursor: pointer; }
    .menu-toggle span { position: absolute; left: 9px; width: 24px; height: 2px; background: currentColor; transition: top .25s, transform .25s; }
    .menu-toggle span:first-child { top: 16px; }.menu-toggle span:last-child { top: 24px; }
    .menu-toggle[aria-expanded="true"] span:first-child { top: 20px; transform: rotate(45deg); }
    .menu-toggle[aria-expanded="true"] span:last-child { top: 20px; transform: rotate(-45deg); }
    .site-nav { position: fixed; inset: 0; padding: 110px 28px 40px; display: flex; flex-direction: column; align-items: stretch; gap: 0; color: var(--white); background: var(--ink); visibility: hidden; opacity: 0; transform: translateY(-10px); transition: visibility .25s, opacity .25s, transform .25s; }
    .site-nav.open { visibility: visible; opacity: 1; transform: translateY(0); }
    .site-nav > a { padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.12); font-size: 24px; }
    .site-nav > a::after { display: none; }
    .site-nav .nav-cta { margin-top: 28px; padding: 14px 20px; color: var(--ink); text-align: center; font-size: 16px; border: 0; }
    body.menu-open { overflow: hidden; }
    .site-header.menu-open { color: var(--white); background: transparent; box-shadow: none; backdrop-filter: none; }

    .hero { min-height: 0; }
    .hero-layout { min-height: 0; padding-top: 130px; padding-bottom: 125px; grid-template-columns: 1fr; gap: 60px; }
    .hero-copy { position: relative; z-index: 2; }
    .hero-visual { max-width: 460px; margin: -25px auto -20px; transform: none; }
    .section { padding: 92px 0; }
    .intro-section { padding-top: 110px; }
    .intro-copy { grid-template-columns: 1fr; gap: 38px; }
    .section-heading { margin-bottom: 48px; grid-template-columns: 1fr; gap: 28px; }
    .section-summary { max-width: 520px; }
    .service-card { grid-template-columns: 42px 120px 1fr; min-height: 0; }
    .service-icon { width: 105px; height: 105px; }
    .icon-spark span { width: 43px; height: 43px; }
    .service-content h3 { font-size: 27px; }
    .featured-product { min-height: 790px; grid-template-columns: 1fr; }
    .featured-product::before { right: -130px; bottom: -150px; top: auto; }
    .product-copy { padding: 46px 38px 10px; }
    .product-brand { margin-top: 45px; }
    .text-link { margin-top: 8px; }
    .product-demo { min-height: 390px; }
    .phone-frame { height: 410px; }
    .process-list { grid-template-columns: 1fr 1fr; }
    .process-list li:nth-child(2) { border-right: 0; }
    .process-list li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 560px) {
    .container, .nav-wrap { width: calc(100% - 32px); }
    .brand { font-size: 15px; }
    .hero-layout { padding-top: 112px; gap: 45px; }
    .hero h1 { font-size: clamp(42px, 12vw, 58px); }
    .hero-lead { margin-top: 25px; font-size: 16px; }
    .hero-actions { align-items: stretch; flex-direction: column; }
    .button { width: 100%; }
    .hero-visual { width: 110%; margin-left: -5%; }
    .skill-chip { min-width: 78px; padding: 9px 12px; font-size: 10px; }
    .visual-core { inset: 28%; padding: 18px; border-radius: 20px; }
    .core-status { right: 14px; bottom: 12px; left: 14px; }
    .display-title { font-size: 39px; }
    .section-index { margin-bottom: 18px; }
    .intro-copy { gap: 30px; }
    .service-card { padding: 34px 0; grid-template-columns: 35px 1fr; gap: 12px; }
    .service-icon { display: none; }
    .service-content { gap: 12px; }
    .service-content h3 { font-size: 25px; }
    .service-content p { margin-bottom: 12px; }
    .featured-product { min-height: 755px; border-radius: 22px; }
    .product-copy { padding: 34px 24px 10px; }
    .product-meta { font-size: 8px; }
    .product-brand { margin-top: 38px; gap: 15px; }
    .product-brand img { width: 62px; height: 62px; padding: 6px; border-radius: 18px; }
    .product-brand h3 { font-size: 53px; }
    .product-copy > p { font-size: 14px; }
    .product-demo { min-height: 375px; }
    .phone-frame { width: 270px; height: 390px; }
    .process-list { grid-template-columns: 1fr; border-top: 0; }
    .process-list li, .process-list li:not(:first-child) { min-height: 0; padding: 24px 0; display: grid; grid-template-columns: 42px 1fr; border-right: 0; border-top: 1px solid var(--line); }
    .process-list li:nth-child(-n+2) { border-bottom: 0; }
    .process-list li > div, .process-list li:not(:first-child) > div { position: static; }
    .process-list li::before { display: none; }
    .process-list h3 { margin-top: -5px; }
    .contact-section { padding: 100px 0 95px; }
    .contact-section h2 { font-size: 50px; }
    .contact-section p:not(.section-index) { font-size: 14px; }
    .email-link { gap: 15px; font-size: 18px; }
    .footer-inner { grid-template-columns: 1fr auto; gap: 10px; }
    .footer-inner > p:nth-child(2) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
    .reveal { opacity: 1; transform: none; }
}