*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #19BAFE;
  --primary-dark: #0E8FD8;
  --primary-light: #E8F7FE;
  --primary-soft: rgba(25,186,254,0.10);
  --accent: #FFD93D;
  --text: #1A2B3C;
  --text-muted: #6B7FA3;
  --bg: #FFFFFF;
  --bg-soft: #F4FAFF;
  --border: #E0EEF8;
  --radius: 18px;

  /* modular type scale */
  --fs-xs: 12px;
  --fs-sm: 14px;
  --fs-base: 16px;
  --fs-lg: 18px;
  --fs-xl: 22px;
  --fs-2xl: 28px;
  --fs-3xl: 36px;
  --fs-4xl: 48px;

  --section-pad: 100px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

/* ─── DECORATIVE BLOBS ─── */
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
  animation: floatBlob 8s ease-in-out infinite;
}
.blob-1 { width: 350px; height: 350px; background: rgba(25,186,254,0.25); top: -120px; left: -100px; animation-delay: 0s; }
.blob-2 { width: 280px; height: 280px; background: rgba(25,186,254,0.18); bottom: -60px; right: -80px; animation-delay: 3s; }
.blob-3 { width: 220px; height: 220px; background: rgba(255,217,61,0.20); top: 45%; right: 8%; animation-delay: 5s; }

@keyframes floatBlob {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-24px) scale(1.06); }
}

/* ─── NAV ─── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #19BAFE, #0DA3E6);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(25,186,254,0.35);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, #19BAFE, #0DA3E6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
}

.logo-sub {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: -2px;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s;
}

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

.nav-cta {
  background: linear-gradient(135deg, #19BAFE, #0DA3E6);
  color: #fff !important;
  padding: 9px 22px;
  border-radius: 24px;
  font-weight: 700 !important;
  transition: transform 0.2s, box-shadow 0.2s !important;
  box-shadow: 0 4px 16px rgba(25,186,254,0.30);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(25,186,254,0.40) !important;
}

.nav-mobile-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-mobile-btn span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--text);
  border-radius: 3px;
}

/* ─── HERO ─── */
#hero {
  min-height: 85vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 0 5%;
  gap: 60px;
  background: linear-gradient(160deg, #F4FAFF 0%, #E8F7FE 30%, #FFFFFF 70%);
  position: relative;
  overflow: hidden;
}

.hero-content { max-width: 560px; position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 24px;
  margin-bottom: 28px;
  box-shadow: 0 2px 12px rgba(25,186,254,0.12);
  border: 1.5px solid rgba(25,186,254,0.15);
}

.hero-badge::before {
  content: '✨';
  font-size: 14px;
  animation: wiggle 1.5s ease-in-out infinite;
}

@keyframes wiggle {
  0%, 100% { transform: rotate(0); }
  25% { transform: rotate(10deg); }
  75% { transform: rotate(-10deg); }
}

.hero-title {
  font-size: clamp(38px, 5.5vw, 60px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 12px;
  color: var(--text);
}

.hero-title .hl { color: var(--primary); }

.hero-subtitle {
  font-size: var(--fs-lg);
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.6;
  max-width: 480px;
}

.hero-subtitle .hl {
  color: var(--primary);
  font-weight: 600;
}

.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-primary {
  background: linear-gradient(135deg, #19BAFE, #0DA3E6);
  color: #fff;
  padding: 15px 36px;
  border-radius: 30px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 700;
  transition: transform 0.2s, box-shadow 0.2s;
  display: inline-block;
  box-shadow: 0 6px 24px rgba(25,186,254,0.35);
}

.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 32px rgba(25,186,254,0.45); }

.btn-outline {
  background: transparent;
  color: var(--primary);
  padding: 15px 36px;
  border-radius: 30px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 700;
  border: 2.5px solid var(--primary);
  transition: all 0.2s;
  display: inline-block;
}

.btn-outline:hover { background: var(--primary-light); transform: translateY(-3px); }

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 42px;
}

.stat-item { text-align: center; }

.stat-num {
  font-size: 30px;
  font-weight: 800;
  background: linear-gradient(135deg, #19BAFE, #0D9BDA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label { font-size: var(--fs-xs); color: var(--text-muted); margin-top: 2px; font-weight: 600; }

.hero-image {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.hero-img-wrapper {
  width: 100%;
  max-width: 520px;
  border-radius: 28px;
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: 0 20px 60px rgba(25,186,254,0.18);
  transform: rotate(2deg);
  transition: transform 0.4s;
}

.hero-img-wrapper:hover { transform: rotate(0deg) scale(1.02); }

.hero-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-float-card {
  position: absolute;
  bottom: -14px;
  left: -40px;
  background: #fff;
  border-radius: 16px;
  padding: 14px 20px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  z-index: 2;
}

.float-emoji {
  font-size: 28px;
  line-height: 1;
}

.float-text strong { display: block; font-size: 14px; font-weight: 600; color: var(--primary); }
.float-text span { font-size: 12px; color: var(--text-muted); }

/* ─── SECTION COMMON ─── */
section { padding: var(--section-pad) 5%; position: relative; overflow: hidden; }

.section-tag {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 14px;
  padding: 4px 14px;
  background: var(--primary-light);
  border-radius: 20px;
}

.section-header.center .section-tag { margin-left: auto; margin-right: auto; display: table; }

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: var(--fs-base);
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.75;
}

.section-header { margin-bottom: 56px; position: relative; z-index: 1; }
.section-header.center { text-align: center; }
.section-header.center .section-desc { margin: 0 auto; }

/* ─── TAGLINE BANNER ─── */
#tagline-banner {
  background: linear-gradient(135deg, #19BAFE, #0D9BDA);
  padding: 40px 5%;
  text-align: center;
  position: relative;
  overflow: hidden;
}

#tagline-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 50%, rgba(255,217,61,0.12) 0%, transparent 40%);
  pointer-events: none;
}

.tagline-big {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  color: #fff;
  letter-spacing: 3px;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}

.tagline-sub {
  font-size: clamp(16px, 2.5vw, 22px);
  font-weight: 400;
  color: rgba(255,255,255,0.85);
  letter-spacing: 2px;
  position: relative;
  z-index: 1;
}

/* ─── ABOUT ─── */
#about {
  background: var(--bg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-img-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.about-img-item {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  min-height: 140px;
  transition: transform 0.3s;
}

.about-img-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.about-img-item:hover { transform: scale(1.05); }

.about-img-item.tall {
  grid-row: span 2;
  aspect-ratio: auto;
}

.about-features { margin-top: 32px; display: flex; flex-direction: column; gap: 20px; }

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  border-radius: 14px;
  transition: background 0.2s;
}

.about-feature:hover { background: var(--primary-light); }

.feature-emoji {
  font-size: 24px;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-text strong { font-size: 15px; font-weight: 600; display: block; }
.feature-text p { font-size: 14px; color: var(--text-muted); margin-top: 3px; }

/* ─── SERVICES ─── */
#services {
  background: linear-gradient(180deg, #F4FAFF 0%, #FFFFFF 40%);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
  position: relative;
  z-index: 1;
}

.service-card {
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  transition: box-shadow 0.3s, transform 0.3s;
  cursor: default;
  border: 1px solid var(--border);
  border-top: 3px solid var(--primary);
}

.service-card:hover {
  box-shadow: 0 16px 48px rgba(25,186,254,0.15);
  transform: translateY(-8px);
}

.service-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s;
}

.service-card:hover .service-card-img img { transform: scale(1.08); }

.service-card-body { padding: 26px; }

.service-emoji {
  font-size: 36px;
  line-height: 1;
  margin-bottom: 14px;
  display: block;
}

.service-card-title { font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.service-card-desc { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

.service-tags { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 7px; }

.tag {
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 16px;
  background: var(--primary-light);
  color: var(--primary-dark);
}

/* ─── WHY US ─── */
#why {
  background: linear-gradient(180deg, #F4FAFF 0%, #FFFFFF 60%);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  position: relative;
  z-index: 1;
}

.why-card {
  background: #fff;
  border-radius: 20px;
  padding: 36px 28px;
  text-align: center;
  border: 1px solid var(--border);
  transition: box-shadow 0.3s, transform 0.3s;
  position: relative;
  overflow: hidden;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
}

.why-card:hover {
  box-shadow: 0 12px 36px rgba(25,186,254,0.12);
  transform: translateY(-6px);
}

.why-emoji {
  font-size: 48px;
  line-height: 1;
  margin-bottom: 16px;
  display: block;
}

.why-title { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.why-desc { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ─── DIAGNOSIS ─── */
#diagnosis { background: linear-gradient(180deg, #fff 0%, #F4FAFF 50%, #fff 100%); }

.diagnosis-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: stretch;
  position: relative;
  z-index: 1;
}

.diagnosis-left {
  display: flex;
  flex-direction: column;
  gap: 0;
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 40px rgba(25,186,254,0.08);
  justify-content: space-between;
  height: 100%;
}

.diagnosis-right {
}

.diagnosis-flow { display: flex; flex-direction: column; gap: 0; }

.diagnosis-step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 18px 0;
}

.diag-step-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
  color: #fff;
  box-shadow: 0 4px 16px rgba(25,186,254,0.2);
}

.diag-connector {
  width: 3px;
  height: 28px;
  background: linear-gradient(180deg, #19BAFE, transparent);
  margin-left: 26px;
  border-radius: 2px;
}

.diag-connector-long {
  width: 3px;
  height: 48px;
  background: linear-gradient(180deg, #19BAFE, transparent);
  margin-left: 26px;
  border-radius: 2px;
}

.diag-step-body h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.diag-step-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.diag-step-body p + p { margin-top: 6px; }

.diag-step-detail {
  margin-top: 10px;
  padding: 12px 14px;
  background: var(--bg-soft);
  border-radius: 10px;
  border-left: 3px solid var(--primary);
}

.diag-step-detail ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.diag-step-detail li {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  padding-left: 18px;
  position: relative;
}

.diag-step-detail li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

.diag-step-detail li strong { color: var(--text); }

.diagnosis-showcase {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 40px rgba(25,186,254,0.08);
}

.diag-subject-tag {
  display: inline-block;
  background: linear-gradient(135deg, #19BAFE, #0DA3E6);
  color: #fff;
  padding: 5px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
}

.diag-showcase-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}

.diag-showcase-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.diag-exam-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.exam-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg-soft);
  border-radius: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}

.exam-card:hover { transform: translateX(4px); box-shadow: 0 2px 12px rgba(0,0,0,0.05); }

.exam-card-badge {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.exam-card-info strong { display: block; font-size: 14px; font-weight: 700; margin-bottom: 2px; }
.exam-card-info span { font-size: 12px; color: var(--text-muted); }
.exam-card-meta {
  display: flex;
  gap: 14px;
  margin-top: 4px;
  font-size: 11px;
  color: var(--text-muted);
}
.exam-card-meta em { font-style: normal; color: var(--primary-dark); font-weight: 600; }

.diag-result {
  background: var(--bg-soft);
  border-radius: 14px;
  padding: 24px 20px 18px;
  border: 1.5px dashed var(--primary);
  position: relative;
}

.diag-result::before {
  content: '诊断结论';
  position: absolute;
  top: -13px;
  left: 16px;
  background: linear-gradient(135deg, #19BAFE, #0DA3E6);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 14px;
  border-radius: 12px;
}

.diag-result-items { display: flex; flex-direction: column; gap: 12px; margin-top: 6px; }

.diag-result-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
  line-height: 1.5;
}

.diag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 5px;
}

/* ↓ chart containers ↓ */
.chart-section {
  margin-bottom: 22px;
  position: relative;
}

.chart-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.chart-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
  margin-left: 4px;
}

.chart-wrapper {
  background: #fff;
  border-radius: 14px;
  padding: 16px 12px 8px;
  border: 1px solid var(--border);
  position: relative;
}

.chart-wrapper canvas {
  max-height: 240px;
}

/* ↓ radar chart inside right column ↓ */
.diag-radar-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.6;
}

.radar-inline {
  margin-bottom: 0;
}

.radar-inline canvas {
  max-height: 300px;
}

/* ↓ checklist inside left column ↓ */
.diag-checklist-inline {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 2px dashed var(--primary-soft);
}

.diag-checklist-inline h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.diag-checklist-inline > p.sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.diag-checklist-inline .checklist-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.diag-checklist-inline .checklist-col h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary-soft);
  color: var(--primary-dark);
}

.diag-checklist-inline .checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.diag-checklist-inline .checklist-item:last-child { border-bottom: none; }

.checklist-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

.checklist-item-info strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 3px;
}

.checklist-item-info p {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

@media (max-width: 900px) {
  .diagnosis-grid { grid-template-columns: 1fr; gap: 40px; }
  .diagnosis-right { position: static; }
  .diag-checklist-inline .checklist-cols { grid-template-columns: 1fr; gap: 20px; }
}

/* ─── PROCESS ─── */
#process { background: #fff; }

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  z-index: 1;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 38px;
  left: 12.5%;
  right: 12.5%;
  height: 3px;
  background: var(--primary);
  z-index: 0;
  border-radius: 2px;
}

.process-step { text-align: center; padding: 0 18px; position: relative; }

.step-num {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin: 0 auto 22px;
  position: relative;
  z-index: 1;
  border: 4px solid #fff;
  background: linear-gradient(135deg, #19BAFE, #0DA3E6);
  box-shadow: 0 6px 20px rgba(25,186,254,0.35);
}

.step-icon { font-size: 30px; margin-bottom: 8px; }

.step-title { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.step-desc { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ─── TESTIMONIALS ─── */
#testimonials {
  background: linear-gradient(180deg, #F4FAFF 0%, #FFFFFF 100%);
}

.testi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  position: relative;
  z-index: 1;
}

.testi-card {
  background: #fff;
  border-radius: 20px;
  padding: 30px;
  border: 1px solid var(--border);
  position: relative;
  transition: box-shadow 0.3s, transform 0.3s;
}

.testi-card:hover {
  box-shadow: 0 10px 32px rgba(0,0,0,0.06);
  transform: translateY(-4px);
}

.testi-emoji {
  font-size: 32px;
  position: absolute;
  top: -16px;
  left: 24px;
  background: #fff;
  padding: 4px;
  border-radius: 50%;
  line-height: 1;
}

.stars { color: #FFD93D; font-size: 16px; letter-spacing: 3px; margin-bottom: 8px; }

.testi-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  margin-top: 18px;
  font-style: italic;
}

.testi-author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.testi-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  background: linear-gradient(135deg, #19BAFE, #0DA3E6);
}

.testi-name { font-size: 14px; font-weight: 700; }
.testi-role { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* ─── CONTACT ─── */
#contact {
  background: linear-gradient(160deg, #19BAFE 0%, #0D8BC8 100%);
  color: #fff;
  text-align: center;
  padding: 90px 5%;
}

#contact .section-title { color: #fff; }
#contact .section-desc { color: rgba(255,255,255,0.75); margin: 0 auto 44px; max-width: 520px; }

.contact-email-section {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 20px;
  padding: 32px 48px;
  transition: background 0.3s, transform 0.3s;
}

.contact-email-section:hover {
  background: rgba(255,255,255,0.18);
  transform: translateY(-4px);
}

.contact-email-emoji { font-size: 40px; line-height: 1; }

.contact-email-label {
  font-size: 13px;
  opacity: 0.65;
  margin-bottom: 4px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.contact-email-value {
  font-size: 22px;
  font-weight: 800;
  word-break: break-all;
}

/* ─── FOOTER ─── */
footer {
  background: #0D1F2D;
  color: rgba(255,255,255,0.55);
  padding: 52px 5% 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 44px;
}

.footer-brand .logo-text {
  background: linear-gradient(135deg, #19BAFE, #5DD6FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand .logo-sub { color: rgba(255,255,255,0.3); }

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  margin-top: 16px;
  color: rgba(255,255,255,0.4);
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

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

.footer-col a {
  text-decoration: none;
  color: rgba(255,255,255,0.45);
  font-size: 14px;
  transition: color 0.2s;
}

.footer-col a:hover { color: rgba(255,255,255,0.85); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  flex-wrap: wrap;
  gap: 8px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  #hero { grid-template-columns: 1fr; padding: 60px 5%; min-height: auto; gap: 32px; }
  .hero-image { order: -1; max-width: 520px; margin: 0 auto; }
  .hero-content { text-align: center; max-width: 100%; }
  .hero-subtitle { max-width: 100%; }
  .hero-btns { justify-content: center; }
  .hero-stats { justify-content: center; }
  #about { grid-template-columns: 1fr; gap: 40px; }
  .about-img-grid { grid-template-columns: 1fr 1fr; max-width: 500px; margin: 0 auto; }
  .about-img-item.tall { grid-row: span 1; aspect-ratio: 4/3; }
  .process-steps { grid-template-columns: 1fr 1fr; gap: 44px; }
  .process-steps::before { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-top > div:first-child { grid-column: span 2; }
  section { padding: 70px 5%; }
  #tagline-banner { padding: 32px 5%; }
  #contact { padding: 80px 5%; }
}

@media (max-width: 600px) {
  nav { padding: 0 20px; }
  .nav-links { display: none; }
  .nav-mobile-btn { display: flex; }
  section { padding: 50px 20px; }
  .about-img-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-top > div:first-child { grid-column: span 1; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .contact-email-section { flex-direction: column; text-align: center; padding: 28px 24px; }
  .contact-email-value { font-size: 18px; }

  /* ── 移动端补充 ── */
  .hero-title { font-size: 32px; }
  .hero-subtitle { font-size: 15px; }
  .hero-badge { font-size: 12px; padding: 6px 14px; }
  .hero-btns { flex-direction: column; align-items: center; }
  .btn-primary, .btn-outline { width: 100%; max-width: 280px; text-align: center; }

  .section-title { font-size: 26px; }
  .section-desc { font-size: 14px; }
  .section-tag { font-size: 11px; padding: 5px 14px; }

  .services-grid { grid-template-columns: 1fr; }
  .service-card-img { height: 180px; }
  .service-card-body { padding: 20px; }
  .service-card-title { font-size: 17px; }

  .why-grid { grid-template-columns: 1fr; gap: 20px; }
  .why-card { padding: 24px 20px; }
  .why-title { font-size: 17px; }

  .testi-grid { grid-template-columns: 1fr; }
  .testi-card { padding: 24px 20px; }

  .diagnosis-grid { grid-template-columns: 1fr; gap: 32px; }
  .diagnosis-left, .diagnosis-showcase { padding: 24px 20px; border-radius: 16px; height: auto; justify-content: flex-start; }
  .diagnosis-step { flex-direction: column; gap: 14px; }
  .diag-step-icon { width: 44px; height: 44px; font-size: 20px; flex-shrink: 0; }
  .diag-step-body h3 { font-size: 15px; }
  .diag-step-body p { font-size: 13px; }
  .diag-step-detail { padding: 12px; font-size: 13px; }
  .diag-step-detail li { font-size: 13px; }
  .diag-connector-long { display: none; }
  .diag-connector { display: none; }

  .diag-subject-tag { font-size: 12px; padding: 5px 12px; }
  .diag-showcase-title { font-size: 17px; }
  .diag-showcase-subtitle { font-size: 13px; }
  .exam-card { flex-direction: column; gap: 10px; padding: 14px; }
  .exam-card-badge { width: 40px; height: 40px; font-size: 18px; }
  .exam-card-info strong { font-size: 14px; }
  .exam-card-info span { font-size: 12px; }
  .exam-card-meta { font-size: 11px; flex-wrap: wrap; }

  .chart-section { padding: 16px; }
  .chart-label { font-size: 14px; }
  .chart-wrapper { height: 240px; }
  .radar-inline .chart-wrapper { height: 260px; }

  .diag-result-items { gap: 10px; }
  .diag-result-item { font-size: 13px; }

  .diag-checklist-inline h3 { font-size: 16px; }
  .diag-checklist-inline > p.sub { font-size: 12px; }
  .checklist-col h4 { font-size: 13px; }
  .checklist-icon { width: 36px; height: 36px; font-size: 16px; }
  .checklist-item-info strong { font-size: 13px; }
  .checklist-item-info p { font-size: 12px; }

  .process-step { padding: 0 10px; }
  .step-num { width: 56px; height: 56px; font-size: 18px; }
  .step-title { font-size: 14px; }
  .step-desc { font-size: 12px; }

  .about-img-grid { grid-template-columns: 1fr; max-width: 320px; }
  .about-features { gap: 14px; }
  .feature-emoji { font-size: 28px; }
  .feature-text strong { font-size: 14px; }
  .feature-text p { font-size: 13px; }

  .contact-item { flex-direction: column; text-align: center; gap: 12px; }
  .contact-icon { margin: 0 auto; }
  .contact-form { padding: 24px 20px; }
  .form-row { grid-template-columns: 1fr; }

  .tagline-big { font-size: 22px; }
  .tagline-sub { font-size: 14px; }

  .hero-float-card { display: none; }
  .blob { display: none; }
}

/* ─── SCROLL ANIMATION ─── */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }