:root {
  --brand: #c91521;
  --brand-dark: #98101a;
  --ink: #181818;
  --muted: #686462;
  --paper: #ffffff;
  --canvas: #f6f4f1;
  --line: #e7e1dc;
  --dark: #171717;
  --shadow: 0 18px 60px rgba(44, 28, 23, 0.10);
  --serif: "Noto Serif TC", "Songti TC", "Yu Mincho", serif;
  --sans: "Noto Sans TC", "PingFang TC", "Hiragino Sans", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { display: block; width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.skip-link {
  position: fixed;
  top: -80px;
  left: 20px;
  z-index: 200;
  padding: 10px 16px;
  color: #fff;
  background: var(--brand);
}
.skip-link:focus { top: 20px; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.section { padding: 110px 0; }
.section-soft { background: var(--canvas); }
.section-dark { color: #fff; background: var(--dark); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.eyebrow::before { width: 30px; height: 2px; content: ""; background: currentColor; }
.display {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(42px, 6vw, 82px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -.04em;
}
.title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(34px, 4.4vw, 58px);
  line-height: 1.18;
  letter-spacing: -.035em;
}
.lead { max-width: 710px; margin: 24px 0 0; color: var(--muted); font-size: 18px; }
.section-dark .lead { color: rgba(255,255,255,.68); }
.section-head { display: flex; justify-content: space-between; gap: 60px; align-items: end; margin-bottom: 52px; }
.section-head .lead { max-width: 520px; margin: 0; }
.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 22px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: #fff;
  font-size: 14px;
  font-weight: 800;
  transition: transform .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
}
.button:hover { transform: translateY(-2px); border-color: var(--brand); color: var(--brand); }
.button-primary { border-color: var(--brand); color: #fff; background: var(--brand); }
.button-primary:hover { border-color: var(--brand-dark); color: #fff; background: var(--brand-dark); }
.text-link { color: var(--brand); font-weight: 800; }
.text-link:hover { color: var(--brand-dark); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(231,225,220,.9);
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(16px);
}
.nav { display: flex; height: 82px; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; min-width: 230px; align-items: center; gap: 13px; }
.brand img { width: 128px; height: auto; }
.brand-copy { border-left: 1px solid var(--line); padding-left: 13px; }
.brand-copy strong { display: block; font-family: var(--serif); font-size: 15px; line-height: 1.2; }
.brand-copy small { display: block; margin-top: 3px; color: var(--muted); font-size: 9px; letter-spacing: .12em; }
.nav-links { display: flex; align-items: center; gap: 30px; font-size: 14px; font-weight: 700; }
.nav-links a { position: relative; padding: 27px 0; }
.nav-links a::after { position: absolute; right: 0; bottom: 19px; left: 0; height: 2px; content: ""; background: var(--brand); transform: scaleX(0); transition: transform .25s ease; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-links .nav-wms { padding: 10px 15px; border: 1px solid var(--brand); color: var(--brand); }
.nav-links .nav-wms::after { display: none; }
.nav-links .nav-wms:hover { color: #fff; background: var(--brand); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 24px; height: 2px; margin: 5px auto; background: var(--ink); transition: transform .25s ease, opacity .25s ease; }
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.home-hero { padding: 78px 0 100px; background: var(--canvas); }
.home-intro { display: grid; grid-template-columns: 1.2fr .8fr; gap: 70px; align-items: end; margin-bottom: 54px; }
.home-intro .lead { margin: 0; }
.business-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.business-card { position: relative; min-height: 520px; overflow: hidden; color: #fff; background: #222; box-shadow: var(--shadow); }
.business-card > img { position: absolute; inset: 0; height: 100%; object-fit: cover; transition: transform .7s cubic-bezier(.2,.7,.2,1); }
.business-card::after { position: absolute; inset: 0; content: ""; background: rgba(12,12,12,.40); }
.business-card:hover > img { transform: scale(1.045); }
.business-content { position: absolute; z-index: 2; inset: auto 42px 40px; }
.business-no { position: absolute; z-index: 2; top: 34px; left: 38px; font-size: 11px; font-weight: 800; letter-spacing: .18em; }
.business-content small { color: rgba(255,255,255,.76); font-size: 12px; font-weight: 800; letter-spacing: .15em; }
.business-content h2 { margin: 8px 0 10px; font-family: var(--serif); font-size: clamp(38px, 4vw, 56px); line-height: 1.1; }
.business-content p { max-width: 460px; margin: 0 0 24px; color: rgba(255,255,255,.78); }
.card-cta { display: inline-flex; align-items: center; gap: 12px; padding-bottom: 5px; border-bottom: 2px solid var(--brand); font-weight: 800; }
.business-card:hover .card-cta { color: #fff; border-color: #fff; }

.about-grid, .story-grid, .contact-grid, .hero-grid, .system-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 70px; align-items: center; }
.about-copy p, .story-copy p { color: var(--muted); font-size: 17px; }
.fact-list { border-top: 1px solid var(--line); }
.fact { display: grid; grid-template-columns: 135px 1fr; gap: 20px; padding: 19px 0; border-bottom: 1px solid var(--line); }
.fact b { font-size: 13px; }
.fact span, .fact a { color: var(--muted); }
.contact-band { padding: 72px 0; color: #fff; background: var(--brand); }
.contact-band .title { font-size: clamp(30px,4vw,48px); }
.contact-band p { color: rgba(255,255,255,.76); }
.contact-band .button { border-color: #fff; }

.page-hero { padding: 70px 0 92px; background: var(--canvas); }
.page-hero .hero-grid { grid-template-columns: .86fr 1.14fr; }
.hero-copy .lead { font-size: 17px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero-meta span { padding: 8px 12px; border: 1px solid var(--line); color: var(--muted); background: #fff; font-size: 12px; font-weight: 700; }
.hero-image { position: relative; min-height: 520px; overflow: hidden; box-shadow: var(--shadow); }
.hero-image img { position: absolute; inset: 0; height: 100%; object-fit: cover; }
.image-note { position: absolute; right: 16px; bottom: 16px; padding: 7px 10px; color: rgba(255,255,255,.85); background: rgba(0,0,0,.58); font-size: 10px; }

.feature-grid, .service-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.feature-card, .service-card { min-height: 240px; padding: 30px; border: 1px solid var(--line); background: #fff; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.feature-card:hover, .service-card:hover { transform: translateY(-5px); border-color: rgba(201,21,33,.35); box-shadow: var(--shadow); }
.card-index { color: var(--brand); font-size: 11px; font-weight: 800; letter-spacing: .15em; }
.feature-card h3, .service-card h3 { margin: 30px 0 10px; font-family: var(--serif); font-size: 25px; }
.feature-card p, .service-card p { margin: 0; color: var(--muted); }
.story-image { position: relative; min-height: 570px; overflow: hidden; }
.story-image img { position: absolute; inset: 0; height: 100%; object-fit: cover; }
.store-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.store-card { padding: 32px; border-top: 3px solid var(--brand); background: #fff; box-shadow: 0 12px 40px rgba(44,28,23,.06); }
.store-card h3 { margin: 24px 0 8px; font-family: var(--serif); font-size: 25px; }
.store-card p { color: var(--muted); }
.store-card small { color: var(--brand); font-weight: 800; letter-spacing: .12em; }
.store-meta { display: grid; gap: 6px; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }

.service-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.service-card { min-height: 220px; }
.process { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); border: 1px solid var(--line); background: #fff; }
.process-step { position: relative; padding: 28px 20px; border-right: 1px solid var(--line); }
.process-step:last-child { border-right: 0; }
.process-step b { display: block; margin-bottom: 34px; color: var(--brand); font-size: 12px; }
.process-step strong { display: block; font-family: var(--serif); font-size: 19px; }
.process-step span { color: var(--muted); font-size: 12px; }
.partner-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.partner { display: flex; min-height: 150px; align-items: center; justify-content: center; padding: 30px; border: 1px solid var(--line); background: #fff; }
.partner img { width: auto; max-width: 210px; max-height: 62px; }
.partner-note { margin-top: 16px; color: var(--muted); font-size: 11px; }
.system-card { position: relative; overflow: hidden; padding: 66px; background: #181818; box-shadow: var(--shadow); }
.system-card::before { position: absolute; top: 0; right: 0; width: 180px; height: 8px; content: ""; background: var(--brand); }
.system-mark { color: var(--brand); font-size: 12px; font-weight: 800; letter-spacing: .18em; }
.system-card h2 { margin: 20px 0 16px; font-family: var(--serif); font-size: clamp(38px,5vw,64px); line-height: 1.08; }
.system-card p { max-width: 670px; color: rgba(255,255,255,.65); font-size: 17px; }
.system-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 28px 0 36px; }
.system-tags span { padding: 8px 12px; border: 1px solid rgba(255,255,255,.16); color: rgba(255,255,255,.78); font-size: 12px; }

.site-footer { padding: 54px 0 28px; border-top: 1px solid var(--line); background: #fff; }
.footer-top { display: flex; justify-content: space-between; gap: 50px; align-items: start; }
.footer-brand img { width: 132px; }
.footer-brand p { max-width: 410px; margin: 16px 0 0; color: var(--muted); font-size: 13px; }
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(130px,1fr)); gap: 8px 36px; font-size: 13px; font-weight: 700; }
.footer-links a:hover { color: var(--brand); }
.footer-bottom { display: flex; justify-content: space-between; margin-top: 42px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }

.reveal { animation: reveal-in .65s both; }
.reveal:nth-child(2) { animation-delay: .08s; }
.reveal:nth-child(3) { animation-delay: .16s; }
@keyframes reveal-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 980px) {
  .menu-toggle { display: block; }
  .nav-links {
    position: fixed;
    top: 82px;
    right: 0;
    bottom: 0;
    left: 0;
    display: none;
    padding: 34px 24px;
    align-items: stretch;
    background: #fff;
    flex-direction: column;
    gap: 0;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 15px 4px; border-bottom: 1px solid var(--line); font-size: 17px; }
  .nav-links a::after { display: none; }
  .nav-links .nav-wms { margin-top: 18px; text-align: center; }
  .home-intro, .about-grid, .story-grid, .contact-grid, .hero-grid, .system-grid, .page-hero .hero-grid { grid-template-columns: 1fr; }
  .home-intro { gap: 24px; }
  .business-card { min-height: 440px; }
  .feature-grid, .service-grid, .store-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .process { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .process-step { border-bottom: 1px solid var(--line); }
  .section-head { align-items: start; flex-direction: column; gap: 22px; }
}

@media (max-width: 680px) {
  .container { width: min(100% - 28px, 1180px); }
  .section { padding: 76px 0; }
  .nav { height: 70px; }
  .brand { min-width: 0; }
  .brand img { width: 106px; }
  .brand-copy { display: none; }
  .nav-links { top: 70px; }
  .home-hero { padding: 50px 0 76px; }
  .business-grid, .feature-grid, .service-grid, .store-grid, .partner-grid { grid-template-columns: 1fr; }
  .business-card { min-height: 430px; }
  .business-content { inset: auto 24px 28px; }
  .business-no { top: 24px; left: 24px; }
  .page-hero { padding: 46px 0 70px; }
  .hero-image { min-height: 390px; }
  .story-image { min-height: 420px; }
  .process { grid-template-columns: 1fr; }
  .process-step { border-right: 0; }
  .system-card { padding: 42px 26px; }
  .footer-top, .footer-bottom { flex-direction: column; }
  .footer-bottom { gap: 8px; }
  .fact { grid-template-columns: 1fr; gap: 4px; }
}

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