@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;600;700;800;900&family=Oswald:wght@500;600&display=swap');

:root {
  --bg: #0a0a0b;
  --surface: #111113;
  --surface-2: #171719;
  --text: #f4f2ed;
  --muted: #aaa7a0;
  --line: rgba(255,255,255,.11);
  --gold: #d8a735;
  --gold-light: #f2cc6d;
  --shell: min(1180px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: "Noto Sans TC", sans-serif; font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; left: 16px; top: -60px; background: var(--gold); color: #080808; padding: 10px 16px; font-weight: 700; transition: top .2s; }
.skip-link:focus { top: 16px; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 30; height: 84px; border-bottom: 1px solid transparent; transition: background .25s, border-color .25s, height .25s; }
.site-header.scrolled { height: 70px; background: rgba(8,8,9,.9); border-color: var(--line); backdrop-filter: blur(18px); }
.nav-wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { display: grid; place-items: center; width: 44px; height: 44px; color: #090909; background: var(--gold); font-family: Oswald, sans-serif; font-weight: 600; letter-spacing: -.08em; transform: skew(-6deg); }
.brand-copy { display: grid; line-height: 1.2; }
.brand-copy strong { font-size: .98rem; letter-spacing: .08em; }
.brand-copy small { color: var(--gold); font: 500 .63rem/1.6 Oswald, sans-serif; letter-spacing: .17em; }
.site-nav { display: flex; align-items: center; gap: 32px; font-size: .9rem; font-weight: 600; }
.site-nav > a:not(.nav-cta) { color: #d4d1ca; transition: color .2s; }
.site-nav > a:not(.nav-cta):hover { color: var(--gold-light); }
.nav-cta { border: 1px solid rgba(216,167,53,.65); padding: 10px 20px; color: var(--gold-light); }
.nav-cta:hover { background: var(--gold); color: #090909; }
.nav-toggle { display: none; background: transparent; border: 0; width: 44px; height: 44px; padding: 11px 8px; }
.nav-toggle > span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; background: white; transition: transform .2s, opacity .2s; }

.hero { position: relative; min-height: 820px; height: 100svh; display: grid; align-items: center; overflow: hidden; }
.hero-media, .hero-shade { position: absolute; inset: 0; }
.hero-media { background-image: radial-gradient(circle at 79% 54%, rgba(216,167,53,.18), transparent 35%), url('assets/fuso-cutout-hero.webp'); background-position: center, calc(100% + clamp(280px, 40vw, 600px)) 58%; background-size: cover, min(92vw, 1500px) auto; background-repeat: no-repeat; transform: scale(1.015); animation: hero-in 1.4s ease-out both; }
.hero-shade { background: linear-gradient(90deg, rgba(5,5,6,.98) 0%, rgba(5,5,6,.9) 30%, rgba(5,5,6,.34) 62%, rgba(5,5,6,.17) 100%), linear-gradient(0deg, rgba(5,5,6,.8) 0%, transparent 38%); }
.hero-inner { position: relative; z-index: 2; padding-top: 60px; }
.hero-copy { width: min(650px, 60%); }
.eyebrow, .kicker { color: var(--gold-light); font: 600 .78rem/1.4 Oswald, "Noto Sans TC", sans-serif; letter-spacing: .2em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.eyebrow span { display: inline-block; width: 38px; height: 1px; background: var(--gold); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 26px; font-size: clamp(3.25rem, 6.1vw, 5.8rem); line-height: 1.09; letter-spacing: -.055em; font-weight: 900; }
h1 em { color: var(--gold-light); font-style: normal; }
.hero-lead { max-width: 590px; color: #cfccc5; font-size: clamp(1.03rem, 1.3vw, 1.18rem); line-height: 1.85; }
.hero-actions { display: flex; gap: 14px; margin: 38px 0 48px; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 24px; padding: 0 24px; border: 1px solid transparent; font-weight: 700; transition: transform .2s, background .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--gold); color: #090909; }
.button-primary:hover { background: var(--gold-light); }
.button-ghost { border-color: rgba(255,255,255,.35); background: rgba(0,0,0,.12); }
.button-ghost:hover { border-color: white; }
.hero-proof { display: flex; gap: 0; }
.hero-proof div { display: grid; min-width: 148px; padding: 0 25px; border-left: 1px solid rgba(255,255,255,.22); }
.hero-proof div:first-child { padding-left: 0; border-left: 0; }
.hero-proof strong { font-size: .95rem; color: white; }
.hero-proof span { color: #8d8a84; font-size: .78rem; }
.scroll-cue { position: absolute; z-index: 3; bottom: 22px; right: max(28px, calc((100vw - 1180px)/2)); display: flex; align-items: center; gap: 10px; color: #aaa; font: .65rem Oswald, sans-serif; letter-spacing: .18em; transform: rotate(90deg); transform-origin: right center; }
.scroll-cue span { width: 36px; height: 1px; background: var(--gold); }

.section { padding: 120px 0; }
.kicker { margin-bottom: 18px; }
.section h2 { margin-bottom: 0; font-size: clamp(2.25rem, 4vw, 4rem); line-height: 1.2; letter-spacing: -.045em; }
.intro { background: #0c0c0d; }
.split-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: end; }
.intro-copy { color: #bfbbb4; font-size: 1.08rem; }
.gold-line { margin-top: 30px; padding: 20px 0 0 24px; border-left: 2px solid var(--gold); color: var(--gold-light); }

.services { background: var(--surface); }
.section-bar { display: grid; grid-template-columns: 1fr .65fr; align-items: end; gap: 70px; margin-bottom: 55px; }
.section-bar > p { margin: 0; color: var(--muted); max-width: 420px; }
.service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.service-card { position: relative; padding: 46px; background: #101012; min-height: 390px; overflow: hidden; transition: background .25s; }
.service-card:hover { background: #171719; }
.service-card.featured { background: linear-gradient(135deg, #1c1810, #111113 68%); }
.service-no { position: absolute; top: 30px; right: 34px; color: #555; font: 500 .78rem Oswald, sans-serif; letter-spacing: .14em; }
.card-icon { width: 64px; height: 64px; display: grid; place-items: center; margin-bottom: 38px; border: 1px solid rgba(216,167,53,.45); color: var(--gold-light); font: 600 .78rem Oswald, sans-serif; letter-spacing: .08em; }
.service-card h3 { margin-bottom: 14px; font-size: 1.45rem; }
.service-card > p { max-width: 480px; color: var(--muted); }
.service-card ul { display: flex; flex-wrap: wrap; gap: 9px; list-style: none; margin: 28px 0 0; padding: 0; }
.service-card li { border: 1px solid var(--line); padding: 5px 10px; color: #c5c1ba; font-size: .78rem; }

.process { background: #0b0b0c; }
.process-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; }
.process-title { position: sticky; top: 120px; align-self: start; }
.process-title > p:not(.kicker) { max-width: 430px; margin-top: 30px; color: var(--muted); }
.text-link { display: inline-flex; gap: 60px; margin-top: 25px; padding-bottom: 8px; border-bottom: 1px solid var(--gold); color: var(--gold-light); font-weight: 700; }
.steps { list-style: none; margin: 0; padding: 0; }
.steps li { display: grid; grid-template-columns: 70px 1fr; gap: 20px; padding: 33px 0; border-top: 1px solid var(--line); }
.steps li:last-child { border-bottom: 1px solid var(--line); }
.steps li > span { color: var(--gold); font: 600 1rem Oswald, sans-serif; letter-spacing: .1em; }
.steps h3 { margin-bottom: 8px; font-size: 1.35rem; }
.steps p { margin: 0; color: var(--muted); }

.standards { padding-top: 20px; background: #0b0b0c; }
.standard-panel { display: grid; grid-template-columns: 1fr 1fr; min-height: 520px; border: 1px solid rgba(216,167,53,.3); background: linear-gradient(120deg, #17140e, #0e0e10 62%); }
.standard-copy { padding: 70px; }
.standard-copy > p:last-child { max-width: 480px; margin-top: 34px; color: var(--muted); }
.standard-list { display: grid; grid-template-columns: 1fr 1fr; border-left: 1px solid var(--line); }
.standard-list > div { padding: 40px; border: 0 solid var(--line); border-bottom-width: 1px; border-right-width: 1px; display: flex; flex-direction: column; justify-content: center; }
.standard-list span { margin-bottom: 30px; color: var(--gold); font: .8rem Oswald, sans-serif; }
.standard-list strong { font-size: 1.05rem; }
.standard-list p { margin: 6px 0 0; color: var(--muted); font-size: .85rem; }

.faq { background: var(--surface); }
.faq-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 110px; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 82px; font-weight: 700; font-size: 1.05rem; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--gold); font-size: 1.6rem; font-weight: 300; transition: transform .2s; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { max-width: 650px; margin: -5px 40px 28px 0; color: var(--muted); }

.contact-cta { position: relative; overflow: hidden; padding: 120px 0; background: var(--gold); color: #0b0b0c; text-align: center; }
.contact-cta::before { content: "ECU"; position: absolute; inset: 50% auto auto 50%; transform: translate(-50%,-52%); color: rgba(0,0,0,.055); font: 600 min(36vw, 480px)/1 Oswald, sans-serif; }
.cta-inner { position: relative; z-index: 1; }
.contact-cta .kicker { color: rgba(0,0,0,.65); }
.contact-cta h2 { max-width: 700px; margin-inline: auto; }
.contact-cta p:not(.kicker) { max-width: 640px; margin: 24px auto 32px; color: rgba(0,0,0,.68); }
.contact-cta .button-primary { background: #0a0a0b; color: white; }
.contact-cta .button-primary:hover { background: #202022; }
.button.large { min-width: 285px; min-height: 60px; }
.contact-cta small { display: block; margin-top: 18px; font-weight: 600; }

footer { padding: 55px 0 32px; background: #070708; }
.footer-grid { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 40px; }
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-brand strong { font-size: 1rem; }
.footer-brand p { margin: 3px 0 0; color: #777; font-size: .8rem; }
.footer-contact { display: grid; text-align: right; }
.footer-contact span { color: #777; font-size: .75rem; }
.footer-contact a { color: var(--gold-light); font: 600 1.3rem Oswald, sans-serif; letter-spacing: .06em; }
.copyright { grid-column: 1 / -1; margin: 30px 0 0; padding-top: 25px; border-top: 1px solid var(--line); color: #5f5f62; font: .7rem Oswald, sans-serif; letter-spacing: .1em; }
.mobile-call { display: none; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
@keyframes hero-in { from { opacity: .2; transform: scale(1.06); } to { opacity: 1; transform: scale(1.015); } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } .reveal { opacity: 1; transform: none; } }

@media (max-width: 900px) {
  :root { --shell: min(100% - 36px, 720px); }
  .site-header { height: 72px; }
  .brand-mark { width: 40px; height: 40px; }
  .nav-toggle { display: block; position: relative; z-index: 2; }
  .site-nav { position: fixed; inset: 0; display: flex; flex-direction: column; justify-content: center; gap: 30px; background: rgba(8,8,9,.98); opacity: 0; visibility: hidden; transform: translateY(-10px); transition: .25s; font-size: 1.25rem; }
  .site-nav.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-cta { margin-top: 8px; }
  .nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero { min-height: 760px; height: auto; padding: 140px 0 80px; }
  .hero-media { background-position: center, calc(100% + 360px) 47%; background-size: cover, auto 64%; }
  .hero-shade { background: linear-gradient(90deg, rgba(5,5,6,.98) 0%, rgba(5,5,6,.82) 65%, rgba(5,5,6,.5) 100%), linear-gradient(0deg, rgba(5,5,6,.95), transparent 70%); }
  .hero-copy { width: min(600px, 88%); }
  .scroll-cue { display: none; }
  .split-intro, .section-bar, .process-layout, .faq-layout { grid-template-columns: 1fr; gap: 45px; }
  .section-bar { margin-bottom: 40px; }
  .process-title { position: static; }
  .standard-panel { grid-template-columns: 1fr; }
  .standard-list { border-left: 0; border-top: 1px solid var(--line); }
}

@media (max-width: 620px) {
  :root { --shell: calc(100vw - 32px); }
  body { padding-bottom: 67px; }
  .brand-copy strong { font-size: .9rem; }
  .hero { min-height: 800px; padding-top: 120px; }
  .hero-media { background-position: center, calc(100% + 280px) 43%; background-size: cover, auto 55%; opacity: .82; }
  .hero-shade { background: linear-gradient(90deg, rgba(5,5,6,.97), rgba(5,5,6,.6)), linear-gradient(0deg, #050506 3%, transparent 62%); }
  .hero-copy { width: 100%; }
  h1 { font-size: clamp(2.65rem, 13vw, 4rem); }
  .hero-lead { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: stretch; margin: 30px 0 40px; }
  .hero-proof { display: grid; grid-template-columns: repeat(3, 1fr); }
  .hero-proof div { min-width: 0; padding: 0 10px; }
  .hero-proof strong { font-size: .78rem; }
  .hero-proof span { font-size: .66rem; }
  .section { padding: 82px 0; }
  .section h2 { font-size: 2.2rem; }
  .split-intro { gap: 35px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { padding: 34px 28px; min-height: 0; }
  .card-icon { margin-bottom: 25px; }
  .process-layout { gap: 52px; }
  .steps li { grid-template-columns: 48px 1fr; }
  .standards { padding-top: 0; }
  .standard-copy { padding: 45px 28px; }
  .standard-list { grid-template-columns: 1fr; }
  .standard-list > div { min-height: 160px; padding: 30px 28px; border-right: 0; }
  .standard-list span { margin-bottom: 14px; }
  .faq-layout { gap: 35px; }
  .contact-cta { padding: 85px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-contact { text-align: left; }
  .mobile-call { position: fixed; z-index: 25; inset: auto 0 0; height: 67px; display: flex; justify-content: center; align-items: center; gap: 14px; background: var(--gold); color: #0a0a0b; box-shadow: 0 -8px 25px rgba(0,0,0,.25); }
  .mobile-call span { font-size: .8rem; }
  .mobile-call strong { font: 600 1.12rem Oswald, sans-serif; letter-spacing: .05em; }
}