/* =========================================================
   体检车放射图文归档解决方案 — 官网样式
   浅色 · 专业医疗 · 可信赖
   ========================================================= */

:root {
  --bg: #f5f9fc;
  --bg-elevated: #eef6fb;
  --bg-card: #ffffff;
  --bg-soft: #e8f3f9;
  --surface: #ffffff;
  --border: #d7e6f0;
  --border-strong: #9ec9e0;
  --text: #0f2d40;
  --text-muted: #4a6678;
  --text-dim: #6b8496;
  --primary: #0b7ea4;
  --primary-deep: #086584;
  --primary-soft: rgba(11, 126, 164, 0.1);
  --accent: #0d9488;
  --accent-2: #0b7ea4;
  --success: #0f9f6e;
  --warning: #d97706;
  --gradient: linear-gradient(135deg, #0b7ea4 0%, #0d9488 100%);
  --gradient-soft: linear-gradient(135deg, rgba(11, 126, 164, 0.08), rgba(13, 148, 136, 0.06));
  --gradient-hero: linear-gradient(165deg, #eef7fb 0%, #f5f9fc 42%, #ffffff 100%);
  --shadow: 0 12px 40px rgba(15, 45, 64, 0.08);
  --shadow-sm: 0 4px 16px rgba(15, 45, 64, 0.06);
  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 72px;
  --container: 1160px;
  --font: "Noto Sans SC", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

code {
  font-family: var(--mono);
  font-size: 0.86em;
  color: var(--primary-deep);
  background: var(--primary-soft);
  padding: 0.12em 0.4em;
  border-radius: 6px;
  border: 1px solid rgba(11, 126, 164, 0.12);
}

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

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
}

.site-header.scrolled {
  border-bottom-color: var(--border);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 4px 24px rgba(15, 45, 64, 0.06);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: block;
}

.brand-mark svg {
  width: 100%;
  height: 100%;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-text strong {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}

.brand-text small {
  font-size: 0.72rem;
  color: var(--text-dim);
  font-weight: 400;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav a {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 8px 12px;
  border-radius: 999px;
  transition: color 0.2s, background 0.2s;
}

.nav a:hover {
  color: var(--primary-deep);
  background: var(--primary-soft);
}

.nav-cta {
  margin-left: 8px !important;
  color: #ffffff !important;
  background: var(--gradient) !important;
  font-weight: 600 !important;
  padding: 8px 16px !important;
  box-shadow: 0 6px 16px rgba(11, 126, 164, 0.22);
}

.nav-cta:hover {
  filter: brightness(1.05);
  color: #ffffff !important;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s, border-color 0.2s, color 0.2s;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  color: #ffffff;
  background: var(--gradient);
  box-shadow: 0 10px 24px rgba(11, 126, 164, 0.22);
}

.btn-primary:hover {
  box-shadow: 0 14px 28px rgba(11, 126, 164, 0.3);
}

.btn-ghost {
  color: var(--primary-deep);
  background: #ffffff;
  border-color: var(--border-strong);
}

.btn-ghost:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.btn-block {
  width: 100%;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 64px 0 36px;
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 126, 164, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 126, 164, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 15%, #000 15%, transparent 75%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
}

.hero-glow-1 {
  width: 420px;
  height: 420px;
  top: -100px;
  left: 8%;
  background: rgba(11, 126, 164, 0.18);
}

.hero-glow-2 {
  width: 360px;
  height: 360px;
  top: 20px;
  right: 4%;
  background: rgba(13, 148, 136, 0.14);
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 860px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(11, 126, 164, 0.2);
  background: rgba(255, 255, 255, 0.85);
  color: var(--primary-deep);
  font-size: 0.84rem;
  font-weight: 500;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 0 rgba(15, 159, 110, 0.45);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(15, 159, 110, 0.45); }
  70% { box-shadow: 0 0 0 10px rgba(15, 159, 110, 0); }
  100% { box-shadow: 0 0 0 0 rgba(15, 159, 110, 0); }
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(2.1rem, 4.5vw, 3.3rem);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.text-gradient {
  background: linear-gradient(135deg, #086584 0%, #0b7ea4 40%, #0d9488 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  margin: 0 auto 28px;
  max-width: 720px;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 40px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 760px;
  margin: 0 auto 48px;
  align-items: stretch;
}

.stat-item {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 84px;
  padding: 16px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.stat-item strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 4px;
  color: var(--text);
}

.stat-item span {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.hero-visual {
  position: relative;
}

.hero-panel {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: #ffffff;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #f8fbfd, #f1f7fb);
}

.panel-chrome span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #cbd5e1;
}

.panel-chrome span:nth-child(1) { background: #f87171; }
.panel-chrome span:nth-child(2) { background: #fbbf24; }
.panel-chrome span:nth-child(3) { background: #34d399; }

.panel-chrome em {
  margin-left: 8px;
  font-style: normal;
  font-size: 0.78rem;
  color: var(--text-dim);
}

.arch-flow {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 8px;
  padding: 28px 20px;
  overflow-x: auto;
  background: linear-gradient(180deg, #ffffff, #f7fbfd);
}

.arch-node {
  flex: 1 1 0;
  min-width: 108px;
  min-height: 118px;
  text-align: center;
  padding: 16px 10px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.arch-node.highlight {
  border-color: rgba(11, 126, 164, 0.35);
  background: linear-gradient(180deg, #f0f9fc, #ffffff);
  box-shadow: 0 8px 20px rgba(11, 126, 164, 0.1);
}

.arch-icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.arch-node strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 4px;
  color: var(--text);
}

.arch-node small {
  color: var(--text-dim);
  font-size: 0.72rem;
}

.arch-arrow {
  display: flex;
  align-items: center;
  color: var(--primary);
  font-weight: 700;
  opacity: 0.65;
  flex-shrink: 0;
}

/* ---------- Trust bar ---------- */
.trust-bar {
  border-block: 1px solid var(--border);
  background: #ffffff;
  padding: 18px 0;
}

.trust-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.trust-inner > span {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.trust-inner ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.trust-inner li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
}

/* ---------- Sections ---------- */
.section {
  padding: 88px 0;
  background: var(--bg);
}

.section-alt {
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(11, 126, 164, 0.06), transparent 70%),
    #ffffff;
  border-block: 1px solid var(--border);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
}

.eyebrow.light {
  color: var(--primary-deep);
}

.section-header h2,
.contact-copy h2 {
  margin: 0 0 14px;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text);
}

.section-desc {
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.75;
}

/* ---------- Feature cards ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  align-items: stretch;
}

.feature-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 24px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.feature-num {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 14px;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--text);
  min-height: 1.4em;
}

.feature-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}

/* ---------- Workflow ---------- */
.workflow-timeline {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.workflow-step {
  border: 1px solid var(--border);
  border-radius: 20px;
  background: #ffffff;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.25s, box-shadow 0.25s;
}

.workflow-step:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
}

.step-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #f8fbfd, #f3f8fb);
}

.step-index {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.95rem;
  color: #ffffff;
  background: var(--gradient);
  flex-shrink: 0;
  box-shadow: 0 6px 14px rgba(11, 126, 164, 0.25);
}

.step-meta h3 {
  margin: 0 0 6px;
  font-size: 1.15rem;
  color: var(--text);
}

.step-tags {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.step-tags span {
  font-size: 0.72rem;
  color: var(--primary-deep);
  border: 1px solid rgba(11, 126, 164, 0.18);
  background: rgba(11, 126, 164, 0.06);
  padding: 2px 8px;
  border-radius: 999px;
}

.step-body {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 24px;
  padding: 24px;
  align-items: stretch;
}

.step-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.step-copy p {
  margin: 0 0 16px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 6px 0 6px 22px;
  font-size: 0.9rem;
  color: var(--text);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(15, 159, 110, 0.15);
}

/* ---------- Screenshot placeholders ---------- */
.shot-placeholder {
  margin: 0;
  cursor: default;
  display: flex;
  min-width: 0;
  height: 100%;
}

.shot-placeholder > .shot-frame {
  width: 100%;
  flex: 1;
}

.shot-frame {
  position: relative;
  min-height: 280px;
  border-radius: 14px;
  border: 1px dashed rgba(11, 126, 164, 0.35);
  background:
    linear-gradient(135deg, rgba(11, 126, 164, 0.05), rgba(13, 148, 136, 0.04)),
    repeating-linear-gradient(
      -45deg,
      rgba(11, 126, 164, 0.03),
      rgba(11, 126, 164, 0.03) 8px,
      transparent 8px,
      transparent 16px
    );
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px 16px;
  overflow: hidden;
}

.shot-frame.compact {
  min-height: 180px;
}

.shot-frame.has-image {
  border-style: solid;
  border-color: var(--border);
  background: #f1f5f9;
  padding: 0;
  cursor: zoom-in;
}

.shot-frame.has-image img {
  width: 100%;
  height: 100%;
  min-height: 180px;
  object-fit: cover;
  object-position: top center;
  background: #eef5f9;
}

/* 移动端等竖图兜底：若仍使用竖长图，完整显示不硬裁 */
.shot-frame.has-image.is-portrait img,
.shot-placeholder[data-shot="10-e-film"] .shot-frame.has-image img {
  object-fit: contain;
  object-position: center center;
}

.shot-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 8px;
}

.shot-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.shot-frame p {
  margin: 0 0 10px;
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.5;
}

.shot-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.85);
}

/* ---------- Modules ---------- */
.module-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  align-items: stretch;
}

.module-card {
  position: relative;
  padding: 24px 20px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #ffffff;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  min-width: 0;
  height: 100%;
}

.module-card.featured {
  border-color: rgba(11, 126, 164, 0.35);
  background:
    linear-gradient(180deg, rgba(11, 126, 164, 0.07), transparent 42%),
    #ffffff;
  box-shadow: 0 10px 28px rgba(11, 126, 164, 0.1);
}

.module-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 0.68rem;
  font-weight: 700;
  color: #ffffff;
  background: var(--gradient);
  padding: 3px 8px;
  border-radius: 999px;
  line-height: 1.2;
  white-space: nowrap;
}

.module-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 1.35rem;
  margin-bottom: 14px;
  background: var(--primary-soft);
  border: 1px solid rgba(11, 126, 164, 0.12);
  flex-shrink: 0;
}

.module-card h3 {
  margin: 0 0 6px;
  font-size: 1.08rem;
  color: var(--text);
  line-height: 1.3;
  min-height: 1.4em;
}

.module-card.featured h3 {
  padding-right: 68px;
}

.module-sub {
  margin: 0 0 10px;
  font-size: 0.82rem;
  color: var(--primary);
  font-weight: 500;
  line-height: 1.4;
  min-height: 1.4em;
}

.module-desc {
  margin: 0 0 14px;
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.65;
  min-height: 4.3em;
}

.module-card ul {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.55;
  flex: 1;
}

.module-card ul li {
  position: relative;
  padding: 0 0 0 16px;
}

.module-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.55;
}

.module-card li + li {
  margin-top: 8px;
}

.module-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  align-content: flex-start;
  min-height: 52px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: auto;
}

.module-tech span {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  line-height: 1.2;
  color: var(--text-dim);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 9px;
  white-space: nowrap;
}

/* ---------- Gallery ---------- */
.shot-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: stretch;
}

.gallery-item {
  margin: 0;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.gallery-item .shot-frame.compact {
  min-height: 168px;
  flex: 1;
}

.gallery-item figcaption {
  margin-top: 10px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
  min-height: 1.4em;
}

/* ---------- Custom ---------- */
.custom-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 28px;
  align-items: stretch;
}

.custom-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 22px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(160deg, rgba(11, 126, 164, 0.05), #ffffff 55%);
  box-shadow: var(--shadow-sm);
}

.custom-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--text);
  min-height: 1.4em;
}

.custom-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}

.custom-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px;
  border-radius: 18px;
  border: 1px solid rgba(11, 126, 164, 0.22);
  background: linear-gradient(120deg, #eaf6fb, #eef9f6);
  box-shadow: var(--shadow-sm);
}

.custom-cta h3 {
  margin: 0 0 6px;
  font-size: 1.15rem;
  color: var(--text);
}

.custom-cta p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* ---------- Advantages ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: stretch;
}

.adv-item {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 22px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.adv-item strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1rem;
  color: var(--text);
  min-height: 1.4em;
}

.adv-item p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}

/* ---------- Delivery ---------- */
.delivery-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  align-items: stretch;
}

.delivery-steps li {
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 100%;
  padding: 22px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.delivery-steps span {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-weight: 800;
  color: var(--primary);
  background: var(--primary-soft);
  border: 1px solid rgba(11, 126, 164, 0.18);
  flex-shrink: 0;
}

.delivery-steps li > div {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.delivery-steps h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  color: var(--text);
}

.delivery-steps p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  padding: 4px 18px 4px;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  padding: 14px 0;
  position: relative;
  padding-right: 28px;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 1.2rem;
  font-weight: 700;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  margin: 0 0 16px;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.faq-item a {
  color: var(--primary-deep);
  font-weight: 600;
}

/* ---------- Contact ---------- */
.contact-section {
  padding-bottom: 100px;
  background: var(--bg);
}

.contact-panel {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 32px;
  padding: 36px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background:
    radial-gradient(ellipse 50% 60% at 0% 0%, rgba(11, 126, 164, 0.1), transparent 55%),
    linear-gradient(180deg, #ffffff, #f4fafc);
  box-shadow: var(--shadow);
}

.contact-copy p {
  color: var(--text-muted);
}

.contact-points {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.contact-points li {
  position: relative;
  padding: 8px 0 8px 22px;
  color: var(--text);
  font-size: 0.95rem;
}

.contact-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

.contact-person {
  margin-top: 24px;
  padding: 18px 18px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.contact-person-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.contact-person-name span {
  margin-left: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-dim);
}

.contact-phone {
  display: inline-block;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--primary-deep);
  margin-bottom: 6px;
}

.contact-phone:hover {
  color: var(--primary);
}

.contact-tip {
  margin: 0;
  font-size: 0.86rem;
  color: var(--text-muted);
}

.contact-wechat {
  display: flex;
  align-items: center;
  justify-content: center;
}

.wechat-card {
  width: min(100%, 360px);
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: #ffffff;
  box-shadow: var(--shadow);
  text-align: center;
}

.wechat-card img {
  width: 100%;
  max-width: 320px;
  height: auto;
  margin: 0 auto;
  display: block;
  border-radius: 12px;
  background: #fff;
}

.footer-contact {
  margin-top: 8px !important;
  font-size: 0.88rem !important;
  color: var(--text-muted) !important;
}

.footer-contact a {
  color: var(--primary-deep);
  font-weight: 600;
}

.footer-contact a:hover {
  color: var(--primary);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 36px 0 28px;
  background: #eef5f9;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  text-align: center;
}

.footer-brand strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text);
}

.footer-brand p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-dim);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  justify-content: center;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-muted);
}

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

.copyright {
  margin: 8px 0 0;
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(15, 45, 64, 0.72);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  gap: 12px;
  backdrop-filter: blur(4px);
}

.lightbox[hidden] {
  display: none;
}

.lightbox img {
  max-width: min(1200px, 100%);
  max-height: 80vh;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
  background: #fff;
}

.lightbox p {
  margin: 0;
  color: #e8f1f6;
  font-size: 0.9rem;
}

.lightbox-close {
  position: absolute;
  top: 18px;
  right: 22px;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  font-size: 1.6rem;
  cursor: pointer;
  line-height: 1;
  box-shadow: var(--shadow-sm);
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 1200px) {
  .module-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1024px) {
  .feature-grid,
  .module-grid,
  .adv-grid,
  .delivery-steps {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .step-body {
    grid-template-columns: 1fr;
  }

  .contact-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px 20px;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s, opacity 0.25s;
  }

  .nav.open {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  .nav a {
    padding: 12px 14px;
    border-radius: 10px;
  }

  .nav-cta {
    margin-left: 0 !important;
    text-align: center;
    justify-content: center;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .arch-flow {
    flex-wrap: nowrap;
  }

  .arch-arrow {
    display: none;
  }
}

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

  .section {
    padding: 64px 0;
  }

  .feature-grid,
  .module-grid,
  .adv-grid,
  .custom-grid,
  .delivery-steps,
  .shot-gallery,
  .custom-cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-panel {
    padding: 22px 16px;
  }

  .contact-wechat {
    order: -1;
  }

  .hero {
    padding-top: 48px;
  }
}