:root {
  --surface-base: #111312;
  --surface-section: #191c1b;
  --surface-elevated: #232725;
  --surface-light: #f3f0e9;
  --text-on-dark: #f7f4ed;
  --text-muted: #a8ada9;
  --text-dark: #222624;
  --text-soft: #626964;
  --border-dark: #343a37;
  --border-light: #d6d1c6;
  --accent: #e76a0b;
  --accent-hover: #ff8425;
  --accent-deep: #9e3e00;
  --focus: #ffd19d;
  --dark-glow: rgba(231, 106, 11, .18);
  --dark-grid: rgba(255, 255, 255, .055);
  --dark-shadow: rgba(0, 0, 0, .22);
  --orange-shadow: rgba(70, 30, 0, .28);
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --content: 75rem;
  --radius-sm: .5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --font-serif: "Noto Serif TC", "Source Han Serif TC", "PMingLiU", serif;
  --font-sans: "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--surface-base);
  color: var(--text-on-dark);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
body.menu-open { overflow: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
.skip-link { position: fixed; inset: var(--space-3) auto auto var(--space-3); z-index: 100; transform: translateY(-160%); padding: var(--space-2) var(--space-4); background: var(--accent); color: var(--surface-base); font-weight: 700; }
.skip-link:focus { transform: translateY(0); }
.container { width: min(calc(100% - 2.5rem), var(--content)); margin-inline: auto; }
.section { padding-block: var(--space-24); }
.section-dark { background: var(--surface-section); }
.section-light { background: var(--surface-light); color: var(--text-dark); }
.section-head { display: grid; grid-template-columns: minmax(0, .8fr) minmax(18rem, 1.2fr); gap: var(--space-12); align-items: end; margin-bottom: var(--space-12); }
.eyebrow { margin: 0 0 var(--space-4); color: var(--accent-hover); font-size: .75rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.section-light .eyebrow { color: var(--accent-deep); }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--font-serif); }
h1 { margin-bottom: var(--space-6); font-size: clamp(2.5rem, 6vw, 5.75rem); font-weight: 700; line-height: 1.04; letter-spacing: 0; }
h2 { margin-bottom: 0; font-size: clamp(2rem, 4vw, 3.75rem); line-height: 1.12; letter-spacing: 0; }
.phrase-line { display: block; white-space: nowrap; }
h3 { margin-bottom: var(--space-3); font-size: 1.25rem; line-height: 1.35; }
.lead { margin: 0; color: var(--text-muted); font-size: 1.125rem; line-height: 1.8; }
.section-light .lead { color: var(--text-soft); }
.muted { color: var(--text-muted); }
.nowrap { white-space: nowrap; }
.button-row { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
.button { display: inline-flex; min-height: 3rem; align-items: center; justify-content: center; gap: var(--space-2); padding: var(--space-3) var(--space-5); border: 1px solid transparent; border-radius: 999px; text-decoration: none; font-weight: 700; transition: transform 140ms ease-out, opacity 140ms ease-out, background-color 140ms ease-out, border-color 140ms ease-out; }
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); opacity: .82; }
.button-primary { background: var(--accent); color: var(--surface-base); }
.button-primary:hover { background: var(--accent-hover); }
.button-secondary { border-color: var(--border-dark); color: var(--text-on-dark); }
.button-secondary:hover { border-color: var(--accent); }
.button svg { width: 1.1rem; height: 1.1rem; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; border-bottom: 1px solid transparent; transition: background-color 240ms ease-in-out, border-color 240ms ease-in-out; }
.site-header.is-scrolled { border-color: var(--border-dark); background: rgba(17, 19, 18, .94); backdrop-filter: blur(18px); }
.nav-wrap { display: flex; min-height: 5rem; align-items: center; justify-content: space-between; gap: var(--space-6); }
.brand { display: flex; min-width: 0; align-items: center; gap: var(--space-3); text-decoration: none; }
.brand-mark { width: 4.8rem; height: auto; object-fit: contain; }
.brand-symbol { display: grid; width: 3.15rem; height: 2.35rem; place-items: center; transform: skew(-10deg); border: 2px solid var(--accent); color: var(--accent-hover); font-family: var(--font-serif); font-size: 1.12rem; font-weight: 700; letter-spacing: -.08em; }
.brand-copy { display: grid; line-height: 1.3; }
.brand-copy strong { font-family: var(--font-serif); font-size: 1rem; letter-spacing: .08em; }
.brand-copy span { color: var(--text-muted); font-size: .72rem; letter-spacing: .08em; }
.site-nav { display: flex; align-items: center; gap: var(--space-6); }
.nav-links { display: flex; align-items: center; gap: var(--space-6); }
.nav-links a { color: var(--text-muted); text-decoration: none; font-size: .9rem; font-weight: 600; }
.nav-links a:hover { color: var(--text-on-dark); }
.menu-button { display: none; width: 3rem; height: 3rem; border: 1px solid var(--border-dark); border-radius: 50%; background: transparent; color: var(--text-on-dark); }
.menu-button span, .menu-button::before, .menu-button::after { content: ""; display: block; width: 1.1rem; height: 2px; margin: 4px auto; background: currentColor; transition: transform 240ms ease-in-out, opacity 240ms ease-in-out; }
.menu-button[aria-expanded="true"] span { opacity: 0; }
.menu-button[aria-expanded="true"]::before { transform: translateY(6px) rotate(45deg); }
.menu-button[aria-expanded="true"]::after { transform: translateY(-6px) rotate(-45deg); }

.hero { position: relative; min-height: clamp(44rem, 92vh, 60rem); overflow: hidden; display: grid; align-items: center; padding: calc(5rem + var(--space-16)) 0 var(--space-16); isolation: isolate; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -2; background: linear-gradient(var(--dark-grid) 1px, transparent 1px), linear-gradient(90deg, var(--dark-grid) 1px, transparent 1px), radial-gradient(circle at 78% 42%, var(--dark-glow), transparent 35%), var(--surface-base); background-size: 4rem 4rem, 4rem 4rem, auto, auto; mask-image: linear-gradient(to bottom, black 72%, transparent); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(25rem, .96fr); gap: var(--space-12); align-items: center; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy .lead { max-width: 38rem; margin-bottom: var(--space-8); }
.hero-highlight { color: var(--accent-hover); }
.hero-note { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-8); color: var(--text-muted); font-size: .85rem; }
.hero-note span { display: inline-flex; align-items: center; gap: var(--space-2); }
.hero-note span::before { content: ""; width: .38rem; height: .38rem; border-radius: 50%; background: var(--accent); box-shadow: 0 0 1rem var(--accent); }
.hero-visual { position: relative; width: min(100%, 38rem); aspect-ratio: 1; max-width: 38rem; justify-self: end; filter: drop-shadow(0 28px 80px var(--orange-shadow)); }
.globe { position: absolute; inset: 9%; overflow: hidden; border: 1px solid #4a514d; border-radius: 50%; background: radial-gradient(circle at 35% 28%, rgba(255,255,255,.16), transparent 24%), radial-gradient(circle at 55% 58%, #2b302d, var(--surface-base) 72%); box-shadow: 0 1px 0 rgba(255,255,255,.08) inset, 0 20px 60px var(--dark-shadow); }
.globe::before, .globe::after { content: ""; position: absolute; inset: 12% -20%; border: 1px solid var(--border-dark); border-radius: 50%; }
.globe::after { inset: -20% 25%; }
.globe-map { position: absolute; inset: 17%; color: #c6cbc7; opacity: .72; }
.globe-grid { position: absolute; inset: 0; opacity: .65; background: linear-gradient(transparent 49.7%, var(--border-dark) 50%, transparent 50.3%), linear-gradient(90deg, transparent 49.7%, var(--border-dark) 50%, transparent 50.3%); }
.route { position: absolute; height: 38%; width: 62%; border: 2px solid transparent; border-top-color: var(--accent-hover); border-radius: 50%; filter: drop-shadow(0 0 10px var(--accent)); opacity: .82; }
.route-one { left: 12%; top: 22%; transform: rotate(17deg); }
.route-two { right: 5%; bottom: 24%; transform: rotate(-25deg); }
.orbit { position: absolute; inset: 2%; border: 1px solid var(--border-dark); border-radius: 50%; transform: rotate(-18deg); }
.orbit::after { content: ""; position: absolute; top: 8%; left: 24%; width: .7rem; height: .7rem; border-radius: 50%; background: var(--accent-hover); box-shadow: 0 0 1.8rem var(--accent-hover); }
.hero-visual-label { position: absolute; right: 2%; bottom: 11%; width: 12rem; padding: var(--space-4); border-left: 2px solid var(--accent); background: rgba(17,19,18,.84); color: var(--text-muted); font-size: .8rem; }
.hero-visual-label strong { display: block; margin-bottom: var(--space-1); color: var(--text-on-dark); font-size: 1rem; }

.proof-bar { border-top: 1px solid var(--border-dark); border-bottom: 1px solid var(--border-dark); background: var(--surface-section); }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.proof-item { padding: var(--space-8); border-right: 1px solid var(--border-dark); }
.proof-item:last-child { border-right: 0; }
.proof-item strong { display: block; color: var(--text-on-dark); font-family: var(--font-serif); font-size: clamp(1.8rem, 3vw, 2.8rem); line-height: 1.1; }
.proof-item span { color: var(--text-muted); font-size: .86rem; }

.about-grid { display: grid; grid-template-columns: minmax(18rem, .8fr) minmax(0, 1.2fr); gap: var(--space-20); align-items: start; }
.about-statement { position: sticky; top: 8rem; }
.about-body { display: grid; gap: var(--space-8); }
.about-body p { margin: 0; color: var(--text-soft); font-size: 1.05rem; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); padding-top: var(--space-6); border-top: 1px solid var(--border-light); }
.principle strong { display: block; margin-bottom: var(--space-2); color: var(--accent-deep); font-family: var(--font-serif); font-size: 1.35rem; }
.principle span { color: var(--text-soft); font-size: .88rem; }

.services-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--border-dark); border-left: 1px solid var(--border-dark); }
.service-card { position: relative; min-height: 19rem; padding: var(--space-8); border-right: 1px solid var(--border-dark); border-bottom: 1px solid var(--border-dark); background: var(--surface-section); transition: transform 240ms ease-in-out, background-color 240ms ease-in-out; }
.service-card:hover { z-index: 2; transform: translateY(-4px); background: var(--surface-elevated); }
.service-icon { width: 3rem; height: 3rem; margin-bottom: var(--space-12); color: var(--accent-hover); }
.service-no { position: absolute; top: var(--space-8); right: var(--space-8); color: var(--text-muted); font-size: .78rem; letter-spacing: .1em; }
.service-card p { max-width: 28rem; margin-bottom: 0; color: var(--text-muted); }

.process { position: relative; overflow: hidden; }
.process::after { content: "IP"; position: absolute; right: -2vw; bottom: -10vw; color: rgba(34,38,36,.04); font-family: var(--font-serif); font-size: min(42vw, 38rem); font-weight: 700; line-height: .7; pointer-events: none; }
.process-list { position: relative; z-index: 1; counter-reset: steps; }
.process-step { display: grid; grid-template-columns: 7rem minmax(12rem, .55fr) minmax(0, 1fr); gap: var(--space-8); align-items: start; padding: var(--space-8) 0; border-top: 1px solid var(--border-light); counter-increment: steps; }
.process-step::before { content: "0" counter(steps); color: var(--accent-deep); font-size: .78rem; font-weight: 700; letter-spacing: .12em; }
.process-step h3 { font-family: var(--font-serif); font-size: 1.5rem; }
.process-step p { margin-bottom: 0; color: var(--text-soft); }

.faq-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: var(--space-20); }
.faq-list { border-top: 1px solid var(--border-dark); }
.faq-list details { border-bottom: 1px solid var(--border-dark); }
.faq-list summary { position: relative; list-style: none; cursor: pointer; padding: var(--space-6) var(--space-10) var(--space-6) 0; font-family: var(--font-serif); font-size: 1.2rem; font-weight: 650; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: var(--space-2); color: var(--accent-hover); font-family: var(--font-sans); font-size: 1.5rem; transition: transform 240ms ease-in-out; }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { padding-right: var(--space-10); color: var(--text-muted); }

.contact-section { position: relative; overflow: hidden; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(21rem, .85fr); gap: var(--space-16); align-items: start; }
.contact-title { max-width: 12ch; }
.contact-list { display: grid; border-top: 1px solid var(--border-dark); }
.contact-item { display: grid; grid-template-columns: 6rem 1fr; gap: var(--space-4); padding: var(--space-5) 0; border-bottom: 1px solid var(--border-dark); }
.contact-item dt { color: var(--text-muted); font-size: .8rem; font-weight: 700; letter-spacing: .1em; }
.contact-item dd { margin: 0; }
.contact-item a { text-decoration-color: var(--accent); text-underline-offset: .25em; }
.contact-actions { margin-top: var(--space-8); }
.location-panel { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(18rem, .8fr); min-height: 25rem; margin-top: var(--space-16); border: 1px solid var(--border-dark); background: var(--surface-base); box-shadow: 0 20px 60px var(--dark-shadow); }
.location-visual { position: relative; min-height: 25rem; overflow: hidden; border-right: 1px solid var(--border-dark); background: linear-gradient(var(--dark-grid) 1px, transparent 1px), linear-gradient(90deg, var(--dark-grid) 1px, transparent 1px), radial-gradient(circle at 58% 48%, var(--dark-glow), transparent 24%), var(--surface-section); background-size: 3rem 3rem, 3rem 3rem, auto, auto; }
.location-visual::before { content: "KAOHSIUNG · FONGSHAN"; position: absolute; left: var(--space-6); bottom: var(--space-5); color: var(--text-muted); font-size: .68rem; font-weight: 700; letter-spacing: .16em; }
.location-ring { position: absolute; width: 17rem; height: 17rem; top: 50%; left: 58%; transform: translate(-50%, -50%); border: 1px solid var(--border-dark); border-radius: 50%; box-shadow: 0 0 0 3.5rem rgba(255,255,255,.018), 0 0 0 7rem rgba(255,255,255,.012); }
.location-marker { position: absolute; width: 1.05rem; height: 1.05rem; top: 50%; left: 58%; transform: translate(-50%, -50%); border: .24rem solid var(--surface-base); border-radius: 50%; background: var(--accent-hover); box-shadow: 0 0 0 .4rem rgba(231,106,11,.16), 0 0 2rem var(--accent); }
.location-route { position: absolute; height: 1px; transform-origin: left center; background: linear-gradient(90deg, transparent, var(--accent), transparent); }
.location-route-one { width: 72%; top: 36%; left: 10%; transform: rotate(18deg); }
.location-route-two { width: 58%; top: 64%; left: 22%; transform: rotate(-27deg); }
.location-copy { display: grid; align-content: center; justify-items: start; padding: clamp(2rem, 5vw, 4rem); }
.location-copy h3 { margin-bottom: var(--space-2); font-family: var(--font-serif); font-size: clamp(1.5rem, 3vw, 2.35rem); }
.location-copy > p:not(.eyebrow) { margin-bottom: var(--space-6); color: var(--text-muted); }
.site-footer { padding: var(--space-8) 0; border-top: 1px solid var(--border-dark); color: var(--text-muted); font-size: .82rem; }
.footer-row { display: flex; justify-content: space-between; gap: var(--space-6); }
.footer-row p { margin-bottom: 0; }
.reveal { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .section { padding-block: var(--space-20); }
  .section-head, .hero-grid, .about-grid, .faq-grid, .contact-grid { grid-template-columns: 1fr; }
  .location-panel { grid-template-columns: 1fr; }
  .location-visual { min-height: 19rem; border-right: 0; border-bottom: 1px solid var(--border-dark); }
  .hero-grid { gap: var(--space-8); }
  .hero-visual { width: min(100%, 31rem); justify-self: center; }
  .about-statement { position: static; }
  .nav-links { position: fixed; inset: 5rem 0 auto; display: grid; padding: var(--space-8) 1.25rem; border-bottom: 1px solid var(--border-dark); background: var(--surface-base); transform: translateY(-130%); opacity: 0; pointer-events: none; transition: transform 240ms ease-in-out, opacity 240ms ease-in-out; }
  .nav-links.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-links a { padding: var(--space-3) 0; font-size: 1.1rem; }
  .menu-button { display: block; }
  .site-nav > .button { display: none; }
  .process-step { grid-template-columns: 4rem 1fr; }
  .process-step p { grid-column: 2; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 2rem), var(--content)); }
  .section { padding-block: var(--space-16); }
  .brand-copy span { display: none; }
  .brand-mark { width: 4rem; }
  .hero { padding-top: 7.5rem; align-items: start; }
  .hero h1 { max-width: 10ch; }
  .phrase-line { display: block; white-space: nowrap; }
  h2 { font-size: clamp(1.9rem, 8.6vw, 2.5rem); }
  .hero-visual { width: 100%; }
  .hero-visual-label { right: 0; bottom: 5%; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-item { border-right: 0; border-bottom: 1px solid var(--border-dark); }
  .proof-item:last-child { border-bottom: 0; }
  .principles, .services-grid { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .service-icon { margin-bottom: var(--space-8); }
  .process-step { grid-template-columns: 3rem 1fr; gap: var(--space-4); }
  .contact-item { grid-template-columns: 1fr; gap: var(--space-1); }
  .footer-row { display: grid; }
}

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