/* PEAKVEIN — Night city × LED mobile advertising */
:root {
  --ink: #07080b;
  --ink-2: #10131a;
  --ink-3: #181d27;
  --panel: #12161f;
  --line: rgba(245, 185, 66, 0.22);
  --line-soft: rgba(236, 232, 223, 0.1);
  --text: #ece8df;
  --muted: #a8a195;
  --amber: #f5b942;
  --amber-2: #ffd27a;
  --cyan: #3ee0d0;
  --cyan-2: #9af3ea;
  --danger: #ff6b6b;
  --ok: #3ee0d0;
  --radius: 2px;
  --header-h: 76px;
  --max: 1180px;
  --font: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  --display: "Oswald", "Noto Sans TC", sans-serif;
  --z-header: 1000;
  --z-menu: 2000;
  --z-top: 1900;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--ink);
  line-height: 1.75;
  min-height: 100dvh;
}

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

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

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

/* Parked off-screen by clipping rather than a negative offset: the old
   top: -40px assumed the link was exactly 40px tall, so the taller rendered
   height left a strip of it showing in the top-left corner of every page. */
.skip-link {
  position: fixed;
  left: 12px;
  top: 12px;
  z-index: 3000;
  background: var(--amber);
  color: var(--ink);
  border-radius: 4px;
  font-weight: 700;
  width: 1px;
  height: 1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  white-space: nowrap;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
}

.skip-link:focus {
  width: auto;
  height: auto;
  padding: 8px 12px;
  overflow: visible;
  clip: auto;
  clip-path: none;
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.container {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.section {
  padding: 88px 0;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--amber);
  letter-spacing: 0.28em;
  font-size: 0.72rem;
  text-transform: uppercase;
  font-weight: 700;
}

.section-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--amber);
}

.section h2,
.prose h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  letter-spacing: 0.04em;
  line-height: 1.25;
  margin: 10px 0 18px;
}

.muted {
  color: var(--muted);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  min-height: var(--header-h);
  background: rgba(7, 8, 11, 0.78);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-soft);
}

.site-header.is-scrolled {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.header-inner {
  min-height: var(--header-h);
  height: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: nowrap;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  min-width: 150px;
}

.logo-mark {
  font-family: var(--display);
  font-size: 1.35rem;
  letter-spacing: 0.22em;
  font-weight: 600;
}

.logo-mark span {
  color: var(--amber);
}

.logo-sub {
  margin-top: 6px;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.nav-desktop {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 2px;
  min-width: 0;
}

.nav-desktop > a,
.nav-item > .nav-link {
  padding: 10px 12px;
  font-size: 0.92rem;
  color: var(--text);
  position: relative;
}

.nav-desktop > a.is-active,
.nav-item.is-active > .nav-link {
  color: var(--amber);
}

.nav-item {
  position: relative;
}

.nav-item .dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 10px 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: 0.2s var(--ease);
}

.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.dropdown a {
  display: block;
  padding: 10px 16px;
  color: var(--text);
  font-size: 0.9rem;
}

.dropdown a:hover,
.dropdown a.is-active {
  background: rgba(245, 185, 66, 0.08);
  color: var(--amber);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: 0.25s var(--ease);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.btn-amber {
  background: var(--amber);
  color: #16120a;
}

.btn-amber:hover {
  background: var(--amber-2);
}

.btn-ghost {
  border-color: var(--line);
  color: var(--text);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--amber);
  color: var(--amber);
}

.btn-cyan {
  background: transparent;
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn-cyan:hover {
  background: var(--cyan);
  color: var(--ink);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  position: relative;
  z-index: calc(var(--z-menu) + 2);
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  position: absolute;
  left: 12px;
  transition: 0.2s var(--ease);
}

.menu-toggle span {
  top: 22px;
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  left: 0;
}

.menu-toggle span::before {
  top: -6px;
}

.menu-toggle span::after {
  top: 6px;
}

.menu-toggle[aria-expanded="true"] span {
  background: transparent;
}

.menu-toggle[aria-expanded="true"] span::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Independent full-screen mobile overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100dvh;
  z-index: var(--z-menu);
  background: #07080b;
  display: flex;
  flex-direction: column;
  padding: 88px 22px 28px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 0.35s var(--ease), visibility 0.35s;
}

.mobile-menu.is-open {
  transform: none;
  visibility: visible;
}

body.menu-open {
  overflow: hidden;
}

.mobile-menu a {
  display: block;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 1.15rem;
}

.mobile-menu .sub {
  padding-left: 14px;
  font-size: 1rem;
  color: var(--muted);
}

.mobile-menu .mobile-cta {
  margin-top: 22px;
  display: grid;
  gap: 10px;
}

/* Hero */
.hero {
  position: relative;
  min-height: min(88dvh, 820px);
  display: grid;
  align-items: end;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.08);
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(7, 8, 11, 0.25) 0%, rgba(7, 8, 11, 0.82) 72%, #07080b 100%),
    linear-gradient(90deg, rgba(7, 8, 11, 0.55), transparent 48%);
}

.hero-scan {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 3px,
    rgba(62, 224, 208, 0.035) 3px 4px
  );
  mix-blend-mode: screen;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 0 72px;
}

.hero h1 {
  font-family: var(--display);
  font-size: clamp(2.1rem, 5vw, 4.4rem);
  line-height: 1.12;
  letter-spacing: 0.03em;
  max-width: 16ch;
  margin: 12px 0 18px;
}

.hero p.lead {
  max-width: 42rem;
  color: #d7d1c4;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 36px;
  color: var(--amber-2);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
}

/* Cards / fleet */
.grid-3,
.grid-2,
.fleet-grid,
.news-grid {
  display: grid;
  gap: 22px;
}

.grid-3,
.fleet-grid,
.news-grid {
  grid-template-columns: repeat(3, 1fr);
}

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

.card {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  overflow: hidden;
  transition: 0.3s var(--ease);
}

.card:hover {
  border-color: var(--amber);
  transform: translateY(-4px);
}

.card a {
  display: block;
  color: inherit;
}

.case-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 28px 0 40px;
  max-width: none;
}

.case-tile {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  min-height: 160px;
}

.case-tile img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.case-tile span {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 12px;
  background: linear-gradient(transparent, rgba(7, 8, 11, 0.88));
  color: var(--amber-2);
  font-size: 0.88rem;
  font-weight: 700;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.article h1 {
  font-family: var(--display);
  font-size: clamp(1.8rem, 3.2vw, 2.9rem);
  line-height: 1.2;
  margin: 8px 0 0;
}

.prose a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1.2em 0;
}

.prose td,
.prose th {
  border: 1px solid var(--line-soft);
  padding: 8px 10px;
  vertical-align: top;
}

.form .btn {
  width: 100%;
}

.card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.card-body {
  padding: 20px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.specs {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  gap: 12px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.specs li,
.prose .specs li {
  border: 1px solid var(--line);
  color: var(--amber-2);
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.45;
  padding: 10px 16px;
}

/* Prose */
.prose {
  max-width: 78ch;
}

.prose p,
.prose li {
  color: #d9d3c6;
}

.prose h3 {
  margin-top: 1.6em;
  font-size: 1.25rem;
}

.prose ul {
  padding-left: 1.2em;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.split img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-hero {
  padding: 72px 0 36px;
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(600px 180px at 10% 0%, rgba(245, 185, 66, 0.12), transparent),
    var(--ink);
}

.breadcrumb {
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.breadcrumb a:hover {
  color: var(--amber);
}

/* FAQ */
.faq {
  background: var(--amber-2);
  color: #16120a;
  padding: 28px 32px;
  margin: 48px 0 0;
}

.faq details {
  border-top: 1px solid rgba(22, 18, 10, 0.16);
  padding: 16px 0;
}

.faq details:first-child {
  border-top: 0;
}

.faq summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
  color: #16120a;
}

.faq summary::-webkit-details-marker,
.faq summary::marker {
  display: none;
  content: none;
}

.faq summary::after {
  content: "＋";
  flex-shrink: 0;
  font-weight: 700;
  line-height: 1.2;
}

.faq details[open] summary::after {
  content: "—";
}

.faq p,
.prose .faq p {
  color: #16120a;
  margin: 10px 0 0;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
}

.contact-card,
.form,
.map-wrap {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  padding: 24px;
}

.form label {
  display: block;
  margin: 12px 0 6px;
  font-size: 0.9rem;
}

.form input,
.form textarea,
.form select {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--line-soft);
  color: var(--text);
  padding: 12px;
  border-radius: var(--radius);
}

.form textarea {
  min-height: 140px;
  resize: vertical;
}

.form-msg {
  margin-top: 12px;
  min-height: 1.4em;
}

.map-wrap iframe,
.map-placeholder {
  width: 100%;
  min-height: 280px;
  border: 0;
  background: #1b2230;
}

/* Footer */
.site-footer {
  background: #05060a;
  border-top: 1px solid var(--line);
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 28px;
}

.site-footer h2 {
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin: 0 0 12px;
}

.site-footer a:hover {
  color: var(--amber);
}

.copyright {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 0.82rem;
}

/* Back to top */
.back-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 46px;
  height: 46px;
  border: 1px solid var(--amber);
  background: rgba(7, 8, 11, 0.85);
  color: var(--amber);
  cursor: pointer;
  z-index: var(--z-top);
  opacity: 0;
  pointer-events: none;
  transition: 0.25s var(--ease);
}

.back-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* Reveal — visible by default so tall sections never stay invisible */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-pending {
  opacity: 0;
  transform: translateY(22px);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal.is-pending {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat {
  padding: 22px;
  border-left: 2px solid var(--amber);
  background: var(--ink-3);
}

.stat b {
  display: block;
  font-family: var(--display);
  font-size: 1.8rem;
  color: var(--amber);
}

.cta-band {
  background:
    linear-gradient(120deg, rgba(245, 185, 66, 0.14), rgba(62, 224, 208, 0.08)),
    var(--ink-2);
  border-block: 1px solid var(--line);
  padding: 56px 0;
}

.cta-band .container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.news-meta {
  color: var(--muted);
  font-size: 0.82rem;
}

.article {
  padding: 48px 0 80px;
}

.article-hero img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  margin: 18px 0 28px;
}

@media (max-width: 1180px) {
  .nav-desktop > a,
  .nav-item > .nav-link {
    padding: 10px 8px;
    font-size: 0.84rem;
  }

  .header-cta .btn {
    min-height: 40px;
    padding: 0 12px;
  }
}

@media (max-width: 1100px) {
  .fleet-grid,
  .news-grid,
  .case-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

.case-note {
  margin: 8px 0 0;
  color: var(--amber-2);
  letter-spacing: 0.08em;
}

@media (max-width: 980px) {
  .nav-desktop,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: inline-block;
  }

  .grid-3,
  .fleet-grid,
  .news-grid,
  .split,
  .contact-grid,
  .footer-grid,
  .stat-row,
  .cta-band .container,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .cta-band .container {
    display: grid;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--max), calc(100% - 28px));
  }

  .section {
    padding: 64px 0;
  }

  .hero {
    min-height: 78dvh;
  }

  .card img {
    height: 200px;
  }
}