/* ═══════════════════════════════════════════════════════════
   陆川县海辉装饰经营部 — Dark Tech Aesthetic
   Font: Noto Serif SC (display) + Noto Sans SC (body)
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700;900&family=Noto+Sans+SC:wght@300;400;500;700&family=Share+Tech+Mono&display=swap');

/* ─── Reset & Base ─────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-void:    #060a12;
  --bg-deep:    #0a0f1c;
  --bg-card:    #0d1525;
  --bg-glass:   rgba(13, 21, 37, 0.72);
  --bg-line:    rgba(30, 144, 255, 0.12);

  --blue-core:  #1e7fff;
  --blue-bright:#3d9fff;
  --cyan-glow:  #00d4ff;
  --cyan-soft:  rgba(0, 212, 255, 0.15);

  --text-white: #f0f4ff;
  --text-mid:   #8fa3c0;
  --text-dim:   #4a5f7a;

  --border:     rgba(30, 127, 255, 0.18);
  --border-hi:  rgba(0, 212, 255, 0.45);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;

  --font-display: 'Noto Serif SC', serif;
  --font-body:    'Noto Sans SC', sans-serif;
  --font-mono:    'Share Tech Mono', monospace;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--bg-void);
  color: var(--text-white);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ─── Scrollbar ────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-void); }
::-webkit-scrollbar-thumb { background: var(--blue-core); border-radius: 4px; }

/* ─── Selection ────────────────────────────────────────── */
::selection { background: var(--blue-core); color: #fff; }

/* ─── Grid Dot Background ──────────────────────────────── */
.grid-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(30,127,255,0.06) 0%, transparent 55%),
    radial-gradient(circle at 80% 70%, rgba(0,212,255,0.04) 0%, transparent 50%),
    linear-gradient(rgba(30,127,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,127,255,0.035) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
}

/* ─── Noise Texture Overlay ────────────────────────────── */
.noise-overlay {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 180px 180px;
}

/* ─── App Wrapper ──────────────────────────────────────── */
#app { position: relative; z-index: 2; }

/* ════════════════════════════════════════════════════════
   NAVBAR
   ════════════════════════════════════════════════════════ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center;
  padding: 0 40px;
  height: 64px;
  background: rgba(6, 10, 18, 0.88);
  backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, box-shadow 0.3s;
}

.navbar.scrolled {
  background: rgba(6, 10, 18, 0.97);
  box-shadow: 0 4px 40px rgba(0, 0, 0, 0.6);
}

/* Logo */
.nav-logo {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; flex-shrink: 0;
}

.nav-logo-icon {
  width: 38px; height: 38px;
  border: 1.5px solid var(--blue-core);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(30, 127, 255, 0.08);
  position: relative; overflow: hidden;
}

.nav-logo-icon::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(30,127,255,0.2));
}

.nav-logo-icon svg { width: 20px; height: 20px; color: var(--cyan-glow); }

.nav-logo-text {
  display: flex; flex-direction: column; line-height: 1.15;
}

.nav-logo-cn {
  font-family: var(--font-display);
  font-size: 13px; font-weight: 700;
  color: var(--text-white);
  letter-spacing: 0.02em;
}

.nav-logo-en {
  font-family: var(--font-mono);
  font-size: 9px; color: var(--blue-bright);
  letter-spacing: 0.12em; text-transform: uppercase;
}

/* Nav Links */
.nav-links {
  display: flex; align-items: center; gap: 2px;
  margin: 0 auto;
  list-style: none;
}

.nav-links a {
  display: block; padding: 8px 14px;
  font-size: 13px; font-weight: 400;
  color: var(--text-mid);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-white);
  background: rgba(30, 127, 255, 0.1);
}

.nav-links a.active { color: var(--blue-bright); }

/* CTA */
.nav-cta {
  flex-shrink: 0;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 20px;
  background: var(--blue-core);
  color: #fff !important;
  font-size: 13px; font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
  box-shadow: 0 0 24px rgba(30,127,255,0.3);
}

.nav-cta:hover {
  background: var(--blue-bright);
  box-shadow: 0 0 36px rgba(30,127,255,0.55);
  transform: translateY(-1px);
}

.nav-cta svg { width: 14px; height: 14px; }

/* ════════════════════════════════════════════════════════
   HERO
   ════════════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  padding: 120px 40px 80px;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
}

/* Hero scanline effect */
.hero::before {
  content: '';
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0, 212, 255, 0.008) 3px,
    rgba(0, 212, 255, 0.008) 4px
  );
}

/* Radial glow behind content */
.hero-glow {
  position: absolute;
  top: -120px; left: -120px;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(30,127,255,0.09) 0%, transparent 65%);
  pointer-events: none; z-index: 0;
}

.hero-glow-right {
  position: absolute;
  top: 50%; right: -100px;
  transform: translateY(-50%);
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,212,255,0.05) 0%, transparent 65%);
  pointer-events: none; z-index: 0;
}

.hero-inner {
  max-width: 1240px; margin: 0 auto; width: 100%;
  display: grid; grid-template-columns: 1fr 400px;
  gap: 80px; align-items: center;
  position: relative; z-index: 1;
}

/* ─── Hero Left ─────────────────────────────────────────── */
.hero-left { display: flex; flex-direction: column; gap: 28px; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  width: fit-content;
  padding: 6px 14px 6px 8px;
  border: 1px solid var(--border);
  border-radius: 40px;
  background: rgba(30,127,255,0.05);
  font-family: var(--font-mono);
  font-size: 11px; color: var(--blue-bright);
  letter-spacing: 0.06em;
}

.hero-badge-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan-glow);
  box-shadow: 0 0 8px var(--cyan-glow);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--cyan-glow); }
  50%       { opacity: 0.5; box-shadow: 0 0 3px var(--cyan-glow); }
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.8vw, 48px);
  font-weight: 900;
  line-height: 1.25;
  color: var(--text-white);
  letter-spacing: -0.01em;
}

.hero-headline em {
  font-style: normal;
  background: linear-gradient(90deg, var(--blue-bright), var(--cyan-glow));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 14px; color: var(--text-mid); line-height: 1.8;
  max-width: 560px;
}

/* Tags row */
.hero-meta {
  display: flex; align-items: center; gap: 12px;
  flex-wrap: wrap;
}

.hero-date {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--text-dim);
  letter-spacing: 0.08em;
}

.hero-tag {
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px; font-weight: 500;
  border: 1px solid;
}

.hero-tag.blue {
  color: var(--blue-bright);
  border-color: rgba(30,127,255,0.4);
  background: rgba(30,127,255,0.08);
}

.hero-tag.cyan {
  color: var(--cyan-glow);
  border-color: rgba(0,212,255,0.35);
  background: rgba(0,212,255,0.07);
}

/* CTA row */
.hero-actions {
  display: flex; align-items: center; gap: 16px;
}

.btn-primary {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 28px;
  background: var(--blue-core);
  color: #fff; font-size: 14px; font-weight: 500;
  border: none; border-radius: var(--radius-sm);
  cursor: pointer; text-decoration: none;
  box-shadow: 0 0 28px rgba(30,127,255,0.35);
  transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
}

.btn-primary:hover {
  background: var(--blue-bright);
  box-shadow: 0 0 44px rgba(30,127,255,0.55);
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px;
  color: var(--text-mid); font-size: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer; text-decoration: none;
  background: transparent;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.btn-ghost:hover {
  color: var(--text-white);
  border-color: var(--border-hi);
  background: rgba(30,127,255,0.06);
}

/* ─── Hero Right — Feature Cards ──────────────────────── */
.hero-cards {
  display: flex; flex-direction: column; gap: 14px;
}

.feature-card {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 20px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
  cursor: default;
}

.feature-card:hover {
  border-color: var(--border-hi);
  transform: translateX(-4px);
  box-shadow: 4px 0 0 var(--blue-core), 0 8px 40px rgba(0,0,0,0.4);
}

.fc-icon {
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}

.fc-icon.blue  { background: rgba(30,127,255,0.12); }
.fc-icon.cyan  { background: rgba(0,212,255,0.1); }
.fc-icon.green { background: rgba(30,210,100,0.1); }
.fc-icon.amber { background: rgba(255,180,0,0.1); }

.fc-body { flex: 1; }

.fc-title {
  font-size: 14px; font-weight: 700;
  color: var(--text-white); margin-bottom: 4px;
}

.fc-desc {
  font-size: 12px; color: var(--text-mid); line-height: 1.6;
}

/* ─── Hero Stats ───────────────────────────────────────── */
.hero-stats {
  display: flex; gap: 32px; margin-top: 8px;
}

.stat-item { display: flex; flex-direction: column; gap: 2px; }

.stat-num {
  font-family: var(--font-display);
  font-size: 26px; font-weight: 900;
  background: linear-gradient(90deg, var(--blue-bright), var(--cyan-glow));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label { font-size: 11px; color: var(--text-dim); }

/* ════════════════════════════════════════════════════════
   SECTION COMMONS
   ════════════════════════════════════════════════════════ */
.section {
  padding: 100px 40px;
  position: relative;
}

.section-inner { max-width: 1240px; margin: 0 auto; }

.section-header { margin-bottom: 60px; }

.section-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px; color: var(--cyan-glow);
  letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 16px;
}

.section-eyebrow::before {
  content: '';
  display: inline-block; width: 24px; height: 1px;
  background: var(--cyan-glow);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 900; line-height: 1.2;
  color: var(--text-white);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 14px; color: var(--text-mid);
  line-height: 1.8; max-width: 600px;
}

.section-divider {
  border: none;
  border-top: 1px solid var(--border);
}

/* ════════════════════════════════════════════════════════
   ABOUT SECTION
   ════════════════════════════════════════════════════════ */
.about-section { background: var(--bg-deep); }

.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center;
}

.about-visual {
  position: relative;
}

.about-frame {
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  overflow: hidden;
  position: relative;
}

.about-frame-inner {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 16px;
}

/* Animated circuit lines */
.circuit-svg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  opacity: 0.15;
}

.about-badge-float {
  position: absolute; bottom: -20px; right: -20px;
  padding: 16px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-hi);
  border-radius: var(--radius-md);
  display: flex; flex-direction: column; gap: 4px;
}

.abf-num {
  font-family: var(--font-display);
  font-size: 32px; font-weight: 900;
  background: linear-gradient(90deg, var(--blue-bright), var(--cyan-glow));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.abf-label { font-size: 11px; color: var(--text-dim); }

.about-content { display: flex; flex-direction: column; gap: 24px; }

.about-highlight-box {
  padding: 20px 24px;
  border-left: 3px solid var(--blue-core);
  background: rgba(30,127,255,0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px; color: var(--text-mid); line-height: 1.8;
}

.about-points { display: flex; flex-direction: column; gap: 12px; }

.about-point {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 14px; color: var(--text-mid);
}

.about-point-icon {
  width: 20px; height: 20px; flex-shrink: 0;
  margin-top: 2px;
  color: var(--blue-bright);
}

/* ════════════════════════════════════════════════════════
   SERVICES SECTION
   ════════════════════════════════════════════════════════ */
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  cursor: default;
  position: relative; overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue-core), var(--cyan-glow));
  opacity: 0; transition: opacity 0.3s;
}

.service-card:hover {
  border-color: var(--border-hi);
  transform: translateY(-6px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(30,127,255,0.1);
}

.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
}

.service-title {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700;
  color: var(--text-white);
  margin-bottom: 12px;
}

.service-desc {
  font-size: 13px; color: var(--text-mid);
  line-height: 1.8; margin-bottom: 20px;
}

.service-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.service-tag {
  padding: 3px 9px;
  font-size: 11px; color: var(--blue-bright);
  border: 1px solid rgba(30,127,255,0.25);
  border-radius: 4px;
  background: rgba(30,127,255,0.06);
}

/* ════════════════════════════════════════════════════════
   CASES SECTION
   ════════════════════════════════════════════════════════ */
.cases-section { background: var(--bg-deep); }

.cases-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.case-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.case-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.55);
  border-color: var(--border-hi);
}

.case-thumb {
  aspect-ratio: 16/10;
  position: relative; overflow: hidden;
}

.case-thumb-inner {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 48px;
  transition: transform 0.5s;
}

.case-card:hover .case-thumb-inner { transform: scale(1.08); }

.case-thumb-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,15,28,0.9) 0%, transparent 60%);
}

.case-body { padding: 20px 22px; }

.case-category {
  font-family: var(--font-mono);
  font-size: 10px; color: var(--blue-bright);
  letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 8px;
}

.case-title {
  font-size: 15px; font-weight: 700;
  color: var(--text-white); margin-bottom: 8px;
}

.case-desc {
  font-size: 12px; color: var(--text-mid); line-height: 1.7;
}

/* ════════════════════════════════════════════════════════
   PROCESS / STEPS
   ════════════════════════════════════════════════════════ */
.process-row {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0; position: relative;
}

.process-row::before {
  content: '';
  position: absolute; top: 28px; left: 12.5%; right: 12.5%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), var(--border), transparent);
}

.process-step {
  display: flex; flex-direction: column; align-items: center;
  padding: 0 20px; text-align: center; gap: 16px;
}

.process-num {
  width: 56px; height: 56px;
  border-radius: 50%;
  border: 1px solid var(--border-hi);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 18px; font-weight: 700;
  color: var(--cyan-glow);
  background: var(--bg-card);
  position: relative; z-index: 1;
  box-shadow: 0 0 24px rgba(0,212,255,0.12);
}

.process-step-title {
  font-size: 15px; font-weight: 700;
  color: var(--text-white);
}

.process-step-desc {
  font-size: 12px; color: var(--text-mid);
  line-height: 1.7;
}

/* ════════════════════════════════════════════════════════
   TEAM / JOIN SECTION
   ════════════════════════════════════════════════════════ */
.join-band {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 40px;
}

.join-inner {
  max-width: 1240px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 40px; flex-wrap: wrap;
}

.join-content { flex: 1; min-width: 300px; }

.join-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.8vw, 34px);
  font-weight: 900; color: var(--text-white);
  margin-bottom: 12px;
}

.join-desc {
  font-size: 14px; color: var(--text-mid); line-height: 1.8;
}

.join-positions {
  display: flex; gap: 16px; flex-wrap: wrap;
}

.position-tag {
  padding: 10px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  font-size: 13px; color: var(--text-mid);
  display: flex; align-items: center; gap: 8px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  cursor: pointer;
}

.position-tag:hover {
  border-color: var(--border-hi);
  color: var(--text-white);
  background: rgba(30,127,255,0.06);
}

.position-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan-glow); }

/* ════════════════════════════════════════════════════════
   CONTACT SECTION
   ════════════════════════════════════════════════════════ */
.contact-grid {
  display: grid; grid-template-columns: 1fr 420px;
  gap: 64px;
}

.contact-form {
  display: flex; flex-direction: column; gap: 16px;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-label {
  font-size: 12px; color: var(--text-mid);
  letter-spacing: 0.04em;
}

.form-input, .form-textarea {
  width: 100%; padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-white);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--blue-core);
  box-shadow: 0 0 0 3px rgba(30,127,255,0.12);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: var(--text-dim);
}

.form-textarea { resize: vertical; min-height: 120px; }

.contact-info { display: flex; flex-direction: column; gap: 24px; }

.ci-block {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex; align-items: flex-start; gap: 16px;
}

.ci-icon {
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: 10px;
  background: rgba(30,127,255,0.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}

.ci-body {}
.ci-label {
  font-size: 11px; color: var(--text-dim);
  letter-spacing: 0.08em; margin-bottom: 4px;
}
.ci-value { font-size: 14px; color: var(--text-white); font-weight: 500; }

/* Map placeholder */
.map-placeholder {
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-card);
  aspect-ratio: 16/7;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 12px;
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 24px;
}

/* ════════════════════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════════════════════ */
.footer {
  background: var(--bg-void);
  border-top: 1px solid var(--border);
  padding: 48px 40px 32px;
}

.footer-inner {
  max-width: 1240px; margin: 0 auto;
}

.footer-top {
  display: grid; grid-template-columns: 260px 1fr;
  gap: 64px; margin-bottom: 48px;
}

.footer-brand { display: flex; flex-direction: column; gap: 16px; }

.footer-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }

.footer-logo-icon {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(30,127,255,0.06);
}

.footer-logo-text { font-family: var(--font-display); font-size: 13px; font-weight: 700; color: var(--text-white); }

.footer-tagline { font-size: 12px; color: var(--text-dim); line-height: 1.7; }

.footer-nav-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }

.footer-col-title {
  font-size: 12px; font-weight: 700;
  color: var(--text-white);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.footer-links { display: flex; flex-direction: column; gap: 10px; list-style: none; }

.footer-links a {
  font-size: 13px; color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--blue-bright); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
}

.footer-copy {
  font-size: 12px; color: var(--text-dim);
}

.footer-icp {
  font-size: 11px; color: var(--text-dim);
  font-family: var(--font-mono);
}

/* ════════════════════════════════════════════════════════
   ONLINE SERVICE FLOAT BUTTON
   ════════════════════════════════════════════════════════ */
.service-float {
  position: fixed; bottom: 32px; right: 32px; z-index: 90;
  display: flex; flex-direction: column; align-items: flex-end; gap: 10px;
}

.service-float-btn {
  width: 50px; height: 50px;
  border-radius: 50%;
  background: var(--blue-core);
  border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 24px rgba(30,127,255,0.5);
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  font-size: 20px;
}

.service-float-btn:hover {
  background: var(--blue-bright);
  transform: scale(1.1);
  box-shadow: 0 4px 36px rgba(30,127,255,0.7);
}

.service-float-popup {
  background: var(--bg-card);
  border: 1px solid var(--border-hi);
  border-radius: var(--radius-md);
  padding: 20px;
  width: 220px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
}

.sfp-title { font-size: 13px; font-weight: 700; color: var(--text-white); margin-bottom: 12px; }
.sfp-qq, .sfp-wechat {
  font-size: 12px; color: var(--text-mid); padding: 8px 0;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
}
.sfp-wechat { border-bottom: none; }

/* ════════════════════════════════════════════════════════
   ANIMATIONS
   ════════════════════════════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideRight {
  from { opacity: 0; transform: translateX(-20px); }
  to   { opacity: 1; transform: translateX(0); }
}

.anim-fadeup { animation: fadeUp 0.7s ease both; }
.anim-fadein { animation: fadeIn 0.6s ease both; }
.anim-slideright { animation: slideRight 0.6s ease both; }

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }

/* Scroll reveal — applied by Vue */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-cards { flex-direction: row; flex-wrap: wrap; }
  .feature-card { flex: 1; min-width: 200px; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-nav-cols { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .navbar { padding: 0 20px; }
  .nav-links { display: none; }
  .section { padding: 72px 24px; }
  .hero { padding: 100px 24px 64px; }
  .services-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .process-row { grid-template-columns: 1fr 1fr; gap: 32px; }
  .process-row::before { display: none; }
  .join-inner { flex-direction: column; }
  .form-row { grid-template-columns: 1fr; }
}