/* 云速德 · 版本3 浅色充实版 */
:root {
  --bg: #f7f9fc;
  --bg-elev: #ffffff;
  --bg-soft: #eef3f9;
  --surface: #ffffff;
  --surface-2: #f3f7fb;
  --ink: #0f1c2e;
  --ink-2: #2a3d55;
  --muted: #5a6f88;
  --muted-2: #7a8fa6;
  --line: rgba(15, 50, 90, 0.08);
  --line-strong: rgba(15, 50, 90, 0.14);
  --brand: #1a7ae0;
  --brand-mid: #2b8af0;
  --brand-cyan: #0ea5c9;
  --brand-dark: #0b5ec4;
  --brand-deep: #063a7a;
  --brand-soft: rgba(26, 122, 224, 0.1);
  --brand-softer: rgba(26, 122, 224, 0.05);
  --accent: #1a7ae0;
  --glow: rgba(26, 122, 224, 0.2);
  --success: #0d9488;
  --warn: #e07a20;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(15, 40, 80, 0.04), 0 1px 3px rgba(15, 40, 80, 0.06);
  --shadow: 0 8px 24px rgba(15, 40, 80, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 40, 80, 0.1);
  --shadow-brand: 0 8px 22px rgba(26, 122, 224, 0.28);
  --max: 1160px;
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --mono: "SF Mono", "Cascadia Code", "Consolas", ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; transition: color 0.2s var(--ease); }
a:hover { color: var(--brand-dark); }
button, input, textarea, select { font: inherit; }

.wrap {
  width: min(var(--max), calc(100% - 2.5rem));
  margin: 0 auto;
}

/* —— Top bar —— */
.topbar {
  background: #0b3d7a;
  color: #e8eef5;
  font-size: 0.86rem;
  letter-spacing: 0.01em;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.72rem 0;
  flex-wrap: wrap;
}
.topbar a { color: #e8eef5; }
.topbar a:hover { color: #f5f8fc; }
.topbar-hotline {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #e8eef5;
  font-weight: 600;
}
.topbar-hotline svg { opacity: 0.95; color: #e8eef5; }
.topbar-meta { display: flex; gap: 1.25rem; flex-wrap: wrap; color: #e8eef5; }

/* —— Header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(15, 40, 80, 0.03);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 0.7rem 0;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
  flex-shrink: 0;
}
.brand-logo img {
  height: 44px;
  width: auto;
}
.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem;
  align-items: center;
}
.nav-links a {
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 500;
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover {
  color: var(--ink);
  background: var(--brand-softer);
}
.nav-links a.active {
  color: var(--brand);
  background: var(--brand-soft);
  font-weight: 600;
}
.nav-cta { flex-shrink: 0; }

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: none;
  border-radius: 999px;
  padding: 0.78rem 1.4rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none !important;
  transition: transform 0.2s var(--ease), box-shadow 0.2s, filter 0.2s, background 0.2s, color 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, #0b5ec4 0%, #1a7ae0 55%, #2b9cf0 100%);
  color: #fff !important;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover {
  filter: brightness(1.05);
  box-shadow: 0 12px 28px rgba(26, 122, 224, 0.35);
  color: #fff !important;
}
.btn-ghost {
  background: #fff;
  color: var(--ink) !important;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-sm);
}
.btn-ghost:hover {
  background: var(--bg-soft);
  border-color: rgba(26, 122, 224, 0.35);
  color: var(--brand-dark) !important;
}
.btn-outline {
  background: transparent;
  color: var(--brand) !important;
  border: 1px solid rgba(26, 122, 224, 0.4);
}
.btn-outline:hover {
  background: var(--brand-soft);
  color: var(--brand-dark) !important;
  border-color: var(--brand);
}
.btn-soft {
  background: var(--brand-soft);
  color: var(--brand) !important;
}
.btn-soft:hover { background: rgba(26, 122, 224, 0.16); }
.btn-sm { padding: 0.55rem 1.1rem; font-size: 0.88rem; }
.btn-lg { padding: 0.9rem 1.65rem; font-size: 1rem; }

/* —— Hero —— */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 55% at 90% 10%, rgba(26, 122, 224, 0.12), transparent 50%),
    radial-gradient(ellipse 50% 50% at 5% 90%, rgba(14, 165, 201, 0.08), transparent 50%),
    linear-gradient(160deg, #f0f6fc 0%, #e8f1fa 45%, #f7f9fc 100%);
  color: var(--ink);
  padding: 4.5rem 0 0;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url("../images/bg/circuit-grid.svg") center / cover no-repeat;
  opacity: 0.7;
  pointer-events: none;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(247,249,252,0.85) 0%, transparent 55%),
    linear-gradient(180deg, transparent 55%, rgba(247,249,252,0.95) 100%);
}
.hero .wrap { position: relative; z-index: 1; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding-bottom: 3.5rem;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem 0.85rem;
  border-radius: 999px;
  background: var(--brand-soft);
  border: 1px solid rgba(26, 122, 224, 0.2);
  font-size: 0.8rem;
  color: var(--brand-dark);
  margin-bottom: 1.15rem;
  letter-spacing: 0.02em;
  font-family: var(--mono);
}
.eyebrow-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px rgba(26, 122, 224, 0.2);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 3px rgba(26, 122, 224, 0.2); }
  50% { box-shadow: 0 0 0 6px rgba(26, 122, 224, 0.08); }
}
.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4.2vw, 2.9rem);
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.hero h1 .hl {
  color: var(--brand);
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
}
.hero p.lead {
  margin: 0 0 1.75rem;
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 38rem;
  line-height: 1.75;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.85rem; }
.hero-stats {
  display: flex;
  gap: 1.75rem;
  margin-top: 2.25rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line-strong);
  flex-wrap: wrap;
}
.hero-stat strong {
  display: block;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  font-family: var(--mono);
}
.hero-stat span {
  font-size: 0.8rem;
  color: var(--muted);
}
.hero-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 1.6rem 1.5rem;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-lg);
  position: relative;
}
.hero-card::before {
  content: "";
  position: absolute;
  top: 0; left: 1.5rem; right: 1.5rem;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brand), transparent);
  border-radius: 2px;
}
.hero-card-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand);
  margin-bottom: 0.85rem;
  font-weight: 600;
  font-family: var(--mono);
}
.hero-card h3 {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 650;
  color: var(--ink);
}
.hero-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.hero-card li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  color: var(--ink-2);
  font-size: 0.94rem;
  line-height: 1.55;
}
.hero-card li + li {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
}
.hero-card li::before {
  content: "";
  flex-shrink: 0;
  width: 18px; height: 18px;
  margin-top: 0.15rem;
  border-radius: 50%;
  background: rgba(26, 122, 224, 0.12) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M3.5 8.5l3 3 6-6' stroke='%231a7ae0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 12px no-repeat;
}

/* —— Stats strip —— */
.stats-strip {
  position: relative;
  z-index: 2;
  margin-top: -1px;
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1.5rem 0;
  box-shadow: var(--shadow-sm);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.stat-cell {
  text-align: center;
  padding: 0.75rem 0.5rem;
  border-right: 1px solid var(--line);
  position: relative;
}
.stat-cell:last-child { border-right: none; }
.stat-cell .num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  font-weight: 700;
  color: var(--brand-dark);
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
}
.stat-cell .label {
  font-size: 0.82rem;
  color: var(--muted);
}

/* —— Sections —— */
.section { padding: 4.25rem 0; }
.section.alt {
  background: var(--bg-elev);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section.soft { background: var(--bg-soft); }
.section-head {
  margin-bottom: 2.25rem;
  max-width: 42rem;
}
.section-head.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}
.section-kicker {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 0.55rem;
  font-family: var(--mono);
}
.section h2,
.section-head h2 {
  margin: 0 0 0.55rem;
  font-size: clamp(1.55rem, 2.8vw, 1.95rem);
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.25;
}
.section .sub,
.section-head .sub {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

/* —— Cards —— */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.cards-4 {
  grid-template-columns: repeat(4, 1fr);
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.55rem 1.4rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s var(--ease), box-shadow 0.25s, border-color 0.25s;
  position: relative;
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(26,122,224,0.45), transparent);
  opacity: 0;
  transition: opacity 0.25s;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(26, 122, 224, 0.25);
}
.card:hover::after { opacity: 1; }
.section.alt .card {
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.65;
}
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, rgba(26,122,224,0.12), rgba(14,165,201,0.06));
  border: 1px solid rgba(26, 122, 224, 0.18);
  color: var(--brand);
  margin-bottom: 1.1rem;
}
.card-icon svg { width: 24px; height: 24px; }

/* —— Timeline —— */
.timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brand-cyan), var(--brand-mid), var(--brand-cyan), transparent);
  z-index: 0;
  opacity: 0.45;
}
.tl-item {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 1.25rem;
}
.tl-num {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.15rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fff;
  border: 2px solid var(--brand);
  color: var(--brand);
  font-weight: 700;
  font-size: 1.05rem;
  font-family: var(--mono);
  box-shadow: 0 0 0 6px rgba(26, 122, 224, 0.08), var(--shadow-sm);
}
.tl-item h3 {
  margin: 0 0 0.45rem;
  font-size: 1.08rem;
  color: var(--ink);
}
.tl-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  counter-reset: step;
}
.step {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
  transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
}
.step:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  border-color: rgba(26, 122, 224, 0.25);
}
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: inline-flex;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  background: var(--brand-soft);
  border: 1px solid rgba(26, 122, 224, 0.25);
  color: var(--brand);
  font-weight: 700;
  font-size: 0.85rem;
  font-family: var(--mono);
  margin-bottom: 0.9rem;
}
.step h3 { margin: 0 0 0.4rem; font-size: 1.05rem; color: var(--ink); }
.step p { margin: 0; color: var(--muted); font-size: 0.94rem; }

/* —— Trust —— */
.trust-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1rem;
  box-shadow: var(--shadow-sm);
}
.trust-item {
  text-align: center;
  padding: 0.35rem 0.5rem;
  border-right: 1px solid var(--line);
}
.trust-item:last-child { border-right: none; }
.trust-item strong {
  display: block;
  font-size: 0.95rem;
  color: var(--ink);
  margin-bottom: 0.2rem;
}
.trust-item span {
  font-size: 0.82rem;
  color: var(--muted);
}

/* —— CTA band —— */
.cta-band {
  background:
    radial-gradient(ellipse 60% 80% at 100% 50%, rgba(14,165,201,0.18), transparent 55%),
    linear-gradient(120deg, #0b3d7a 0%, #0d5aab 45%, #1470c8 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(11, 93, 196, 0.3);
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../images/bg/circuit-grid.svg") right center / 70% no-repeat;
  opacity: 0.18;
  pointer-events: none;
  filter: invert(1) brightness(2);
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band h3 { margin: 0 0 0.35rem; font-size: 1.25rem; letter-spacing: -0.01em; color: #f0f4f8; }
.cta-band p { margin: 0; color: #e8eef5; font-size: 0.95rem; }
.cta-band .btn-outline {
  border-color: rgba(255,255,255,0.45);
  background: rgba(255,255,255,0.1);
  color: #fff !important;
}
.cta-band .btn-outline:hover {
  background: rgba(255,255,255,0.2);
  color: #fff !important;
}
.cta-band .btn-ghost {
  background: transparent;
  border-color: rgba(255,255,255,0.35);
  color: #fff !important;
  box-shadow: none;
}
.cta-band .btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  color: #fff !important;
}
.cta-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* —— Page hero —— */
.page-hero {
  padding: 2.75rem 0 2rem;
  background:
    radial-gradient(ellipse 50% 80% at 80% 0%, rgba(26, 122, 224, 0.08), transparent 50%),
    linear-gradient(180deg, #eaf2fa 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--line);
  position: relative;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-dark), var(--brand-cyan), transparent);
}
.page-hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.65rem, 3vw, 2.15rem);
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--ink);
}
.page-hero p {
  margin: 0;
  color: var(--muted);
  max-width: none;
  font-size: 1.02rem;
}
.breadcrumb {
  font-size: 0.82rem;
  color: var(--muted-2);
  margin-bottom: 0.75rem;
  font-family: var(--mono);
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--brand); }

/* —— Content panels —— */
.contact-main {
  max-width: 52rem;
}
.content-grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 1.5rem;
  align-items: start;
}
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem 1.6rem;
  box-shadow: var(--shadow-sm);
}
.panel h3 {
  margin: 0 0 1rem;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.panel p { color: var(--ink-2); }
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
.panel-head h3 { margin: 0; }
.muted { color: var(--muted); }
.list-clean {
  margin: 0;
  padding-left: 0;
  list-style: none;
  color: var(--muted);
}
.list-clean li {
  position: relative;
  padding-left: 1.35rem;
  line-height: 1.6;
}
.list-clean li + li { margin-top: 0.65rem; }
.list-clean li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-mid), var(--brand-cyan));
}
.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.check-list li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  color: var(--ink-2);
  font-size: 0.96rem;
  padding: 0.65rem 0;
}
.check-list li + li { border-top: 1px solid var(--line); }
.check-list li::before {
  content: "";
  flex-shrink: 0;
  width: 20px; height: 20px;
  margin-top: 0.1rem;
  border-radius: 50%;
  background: rgba(26, 122, 224, 0.1) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M3.5 8.5l3 3 6-6' stroke='%231a7ae0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 12px no-repeat;
}
.x-list li::before {
  background: rgba(224, 122, 32, 0.1) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4.5 4.5l7 7M11.5 4.5l-7 7' stroke='%23e07a20' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") center / 11px no-repeat;
}

/* —— Forms —— */
.form { display: grid; gap: 1.15rem; }
.form-section {
  display: grid;
  gap: 1rem;
  padding: 1.15rem 0;
}
.form-section + .form-section {
  border-top: 1px solid var(--line);
}
.form-section-title {
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand);
  margin: 0;
  font-family: var(--mono);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink-2);
}
label span.req { color: var(--warn); margin-left: 0.15rem; }
label span.hint {
  font-weight: 400;
  color: var(--muted-2);
  font-size: 0.82rem;
  margin-left: 0.25rem;
}
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 0.78rem 0.95rem;
  font: inherit;
  background: #fff;
  color: var(--ink);
  transition: border-color 0.2s, box-shadow 0.2s;
}
input::placeholder, textarea::placeholder { color: #9aadc0; }
input:hover, textarea:hover, select:hover {
  border-color: rgba(26, 122, 224, 0.35);
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(26, 122, 224, 0.12);
}
textarea { min-height: 110px; resize: vertical; }
.file-box {
  position: relative;
  display: block;
  border: 1.5px dashed rgba(26, 122, 224, 0.35);
  border-radius: var(--radius);
  padding: 1.6rem 1.25rem 1.35rem;
  background: linear-gradient(180deg, rgba(26,122,224,0.03), rgba(14,165,201,0.05));
  color: var(--muted);
  font-weight: 400;
  text-align: center;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
  cursor: pointer;
}
.file-box:hover {
  border-color: var(--brand);
  background: rgba(26, 122, 224, 0.08);
  box-shadow: 0 8px 24px rgba(26, 122, 224, 0.08);
}
.file-box:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(26, 122, 224, 0.14);
}
.file-box.has-file {
  border-style: solid;
  border-color: rgba(26, 122, 224, 0.45);
  background: rgba(26, 122, 224, 0.06);
}
.file-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  font-size: 0;
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  box-shadow: none;
}
.file-input:focus { outline: none; box-shadow: none; }
.file-icon {
  width: 44px; height: 44px;
  margin: 0 auto 0.75rem;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--brand);
  box-shadow: var(--shadow-sm);
}
.file-title {
  display: block;
  color: var(--ink);
  font-weight: 650;
  font-size: 1rem;
}
.file-hint {
  margin: 0.45rem 0 1rem;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}
.file-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.62rem 1.25rem;
  border-radius: 999px;
  background: linear-gradient(180deg, #2b86ef 0%, var(--brand) 100%);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 650;
  box-shadow: 0 6px 16px rgba(26, 122, 224, 0.28);
  pointer-events: none;
  transition: transform 0.15s, box-shadow 0.15s;
}
.file-box:hover .file-btn {
  box-shadow: 0 8px 20px rgba(26, 122, 224, 0.36);
  transform: translateY(-1px);
}
.file-name {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.84rem;
  color: var(--muted-2);
  font-family: var(--mono);
}
.file-name.has-file {
  color: var(--brand);
  font-weight: 600;
}
.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
  padding-top: 0.25rem;
}
.form-note { font-size: 0.85rem; color: var(--muted); }
.btn:disabled { opacity: 0.65; cursor: not-allowed; filter: none; }
.form-error {
  margin: 0.85rem 0 0;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-sm);
  background: #fff4f2;
  color: #9b2c2c;
  border: 1px solid #f0c9c4;
  font-size: 0.9rem;
  line-height: 1.55;
}
.quote-success[hidden],
#quote-form-wrap[hidden] { display: none !important; }
.quote-success h3 { margin: 0 0 0.6rem; color: var(--ink); }
.quote-success p { margin: 0 0 0.75rem; color: var(--ink-2); line-height: 1.7; }
.quote-success .form-actions { margin-top: 0.4rem; }

/* —— BOM guide table —— */
.bom-guide {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 0.5rem 0 0;
}
.bom-guide th,
.bom-guide td {
  text-align: left;
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid var(--line);
}
.bom-guide th {
  color: var(--brand-dark);
  font-weight: 650;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-family: var(--mono);
  background: var(--brand-softer);
}
.bom-guide td { color: var(--ink-2); }
.bom-guide tr:last-child td { border-bottom: none; }
.bom-guide .req-tag {
  display: inline-block;
  font-size: 0.72rem;
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
  background: rgba(224, 122, 32, 0.12);
  color: var(--warn);
  font-weight: 600;
}
.bom-guide .opt-tag {
  display: inline-block;
  font-size: 0.72rem;
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
  background: var(--brand-soft);
  color: var(--brand);
  font-weight: 600;
}

/* —— FAQ —— */
.faq-list { display: grid; gap: 0.75rem; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-item summary {
  cursor: pointer;
  padding: 1rem 1.15rem;
  font-weight: 600;
  color: var(--ink);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--mono);
  color: var(--brand);
  font-size: 1.2rem;
  font-weight: 400;
  flex-shrink: 0;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item[open] {
  border-color: rgba(26, 122, 224, 0.28);
}
.faq-item .faq-body {
  padding: 0 1.15rem 1.1rem;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.7;
  border-top: 1px solid var(--line);
  margin-top: 0;
  padding-top: 0.85rem;
}

/* —— Contact / WeCom —— */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.contact-chip {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  padding: 1.1rem 1.15rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, box-shadow 0.2s;
  box-shadow: var(--shadow-sm);
}
.contact-chip:hover {
  border-color: rgba(26, 122, 224, 0.28);
  box-shadow: var(--shadow);
}
.contact-chip-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--brand-soft);
  color: var(--brand);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.contact-chip strong {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 0.15rem;
}
.contact-chip a, .contact-chip span.value {
  color: var(--ink);
  font-weight: 600;
  font-size: 0.98rem;
}
.wecom-card {
  background: linear-gradient(165deg, #fff 0%, rgba(26,122,224,0.05) 100%);
  border: 1px solid rgba(26, 122, 224, 0.18);
  border-radius: var(--radius);
  padding: 1.75rem;
  text-align: center;
  box-shadow: var(--shadow);
}
.wecom-card h3 { margin: 0 0 0.35rem; color: var(--ink); }
.wecom-card .sub-line {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 1.25rem;
}
.wecom-frame {
  display: inline-block;
  padding: 12px;
  background: #fff;
  border-radius: 16px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1rem;
}
.wecom-frame img {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: 8px;
}
.wecom-name {
  font-weight: 650;
  color: var(--ink);
  margin-bottom: 0.2rem;
}
.wecom-role { font-size: 0.88rem; color: var(--muted); }

.qr-pair {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.qr-pair .wecom-card { margin: 0; }
.qr-pair .wecom-frame img { width: 140px; height: 140px; }
.qr-stack {
  display: grid;
  gap: 1rem;
}
@media (max-width: 960px) {
  .qr-pair { grid-template-columns: 1fr; }
  .qr-pair .wecom-frame img { width: 160px; height: 160px; }
}

/* —— Feature rows —— */
.feature-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.feature-block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: var(--shadow-sm);
}
.feature-block h3 {
  margin: 0 0 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.08rem;
  color: var(--ink);
  flex-wrap: wrap;
}
.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--brand-soft);
  color: var(--brand);
  font-family: var(--mono);
}
.pill.warn {
  background: rgba(224, 122, 32, 0.12);
  color: var(--warn);
}

/* —— Delivery flow —— */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.flow-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.flow-card .flow-idx {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--brand);
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}
.flow-card h4 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  color: var(--ink);
}
.flow-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
}

/* —— Footer —— */
.site-footer {
  margin-top: 0;
  background: #0c243f;
  color: #e8eef5;
  padding: 3rem 0 1.75rem;
  position: relative;
  border-top: 1px solid rgba(26, 122, 224, 0.2);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, rgba(26,122,224,0.55), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 2rem;
}
.site-footer a { color: #e8eef5; }
.site-footer a:hover { color: #f5f8fc; }
.site-footer h4 {
  margin: 0 0 1rem;
  color: #f0f4f8;
  font-size: 0.88rem;
  font-weight: 650;
  letter-spacing: 0.04em;
}
.site-footer p, .site-footer li {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.55;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li + li { margin-top: 0.5rem; }
.footer-logo {
  height: 48px;
  width: auto;
  margin-bottom: 1rem;
}
.footer-tag {
  margin-top: 0.5rem !important;
  color: #c5d0dc;
  font-size: 0.88rem !important;
}
.footer-qrs {
  margin-top: 0.85rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.footer-qrs figure {
  margin: 0;
  text-align: center;
}
.footer-qrs img {
  width: 76px;
  height: 76px;
  border-radius: 10px;
  background: #fff;
  padding: 4px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  object-fit: cover;
  display: block;
}
.footer-qrs figcaption {
  margin-top: 0.35rem;
  font-size: 0.75rem;
  color: #c5d0dc;
}
.copyright {
  margin-top: 2.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.82rem;
  color: #c5d0dc;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
}

/* —— Compare —— */
.compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: stretch;
}
.compare-col {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow-sm);
}
.compare-col.highlight {
  border-color: rgba(26, 122, 224, 0.35);
  background: linear-gradient(180deg, #fff, rgba(26,122,224,0.05));
  box-shadow: var(--shadow);
}
.compare-vs {
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--brand);
  font-size: 0.85rem;
  font-family: var(--mono);
}
.compare-col h3 { margin: 0 0 0.85rem; font-size: 1rem; color: var(--ink); }

/* —— Utility —— */
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 1.75rem; }
.mt-3 { margin-top: 2.5rem; }
.mb-0 { margin-bottom: 0; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

/* —— Responsive —— */
@media (max-width: 960px) {
  .hero-grid,
  .content-grid,
  .cards,
  .cards-4,
  .steps,
  .timeline,
  .footer-grid,
  .form-row,
  .trust-bar,
  .feature-row,
  .contact-cards,
  .compare,
  .stats-grid,
  .flow-grid {
    grid-template-columns: 1fr;
  }
  .timeline::before { display: none; }
  .trust-item, .stat-cell { border-right: none; border-bottom: 1px solid var(--line); padding: 0.85rem 0; }
  .trust-item:last-child, .stat-cell:last-child { border-bottom: none; }
  .compare-vs { padding: 0.25rem 0; }
  .nav-links { display: none; }
  .brand-logo img { height: 38px; }
  .hero { padding-top: 3.25rem; }
  .section { padding: 3.25rem 0; }
  .cta-band { padding: 1.6rem 1.35rem; }
  .topbar-meta { display: none; }
}
@media (max-width: 520px) {
  .wrap { width: min(var(--max), calc(100% - 1.5rem)); }
  .hero-actions .btn { width: 100%; }
  .wecom-frame img { width: 160px; height: 160px; }
  .qr-pair .wecom-frame img { width: 140px; height: 140px; }
}