/* 苏州翰墨赛斯生物科技有限公司 — 官网样式 */

:root {
  --primary: #0066b3;
  --primary-dark: #004d8c;
  --primary-light: #e8f4fc;
  --accent: #00a0e9;
  --ink: #1a2b3c;
  --ink-soft: #5a6b7c;
  --ink-muted: #8a9bab;
  --bg: #f5f8fa;
  --white: #ffffff;
  --line: rgba(0, 102, 179, 0.12);
  --shadow: 0 8px 32px rgba(0, 77, 140, 0.1);
  --shadow-hover: 0 16px 48px rgba(0, 77, 140, 0.16);
  --radius: 6px;
  --header-h: 4rem;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --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);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--accent);
}

h1, h2, h3, h4 {
  line-height: 1.3;
  font-weight: 600;
  color: var(--ink);
}

p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 1000;
  padding: 0.6rem 1rem;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  text-decoration: none;
}

.skip-link:focus { top: 1rem; }

.container {
  width: min(1140px, calc(100% - 2.5rem));
  margin-inline: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.75rem;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

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

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  box-shadow: 0 6px 20px rgba(0, 102, 179, 0.35);
}

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

.btn-outline:hover {
  background: var(--primary-light);
}

.btn-white {
  background: #fff;
  color: var(--primary);
}

.btn-white:hover {
  background: var(--primary-light);
}

.btn-sm {
  min-height: 2.35rem;
  padding: 0.45rem 1.1rem;
  font-size: 0.88rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), backdrop-filter 0.3s;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--line);
}

.header-inner {
  width: min(1140px, calc(100% - 2.5rem));
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
}

.logo-mark {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-text {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.logo-text span {
  display: block;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

.nav-list {
  display: flex;
  gap: 2rem;
}

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
}

.nav a::after,
.nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

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

.nav a:hover::after,
.nav a.active::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: var(--radius);
  padding: 0.6rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 0.5rem 1.25rem 1.25rem;
  background: var(--white);
  border-top: 1px solid var(--line);
}

.mobile-nav:not([hidden]) { display: flex; }

.mobile-nav a {
  padding: 0.85rem 0;
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
  border-bottom: 1px solid var(--line);
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #003d6b 0%, #0066b3 45%, #0088cc 100%);
}

.hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse 70% 60% at 80% 20%, rgba(0, 160, 233, 0.25), transparent 55%),
    linear-gradient(180deg, transparent 60%, rgba(0, 61, 107, 0.4) 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: min(1140px, calc(100% - 2.5rem));
  margin-inline: auto;
  padding: 5rem 0 6rem;
  color: #fff;
}

.hero-inner h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  animation: fadeUp 0.8s var(--ease) both;
}

.hero-sub {
  margin-bottom: 0.75rem;
  font-size: clamp(1.1rem, 2.5vw, 1.45rem);
  font-weight: 500;
  opacity: 0.95;
  animation: fadeUp 0.8s 0.1s var(--ease) both;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-bottom: 2.25rem;
  font-size: 1rem;
  opacity: 0.88;
  animation: fadeUp 0.8s 0.2s var(--ease) both;
}

.hero-tags span::before {
  content: "·";
  margin-right: 0.5rem;
  opacity: 0.6;
}

.hero-tags span:first-child::before { content: none; margin: 0; }

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  animation: fadeUp 0.8s 0.3s var(--ease) both;
}

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

/* Page banner (inner pages) */
.page-banner {
  background: linear-gradient(135deg, #003d6b, #0066b3);
  color: #fff;
  padding: 4.5rem 0 4rem;
  text-align: center;
}

.page-banner h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.85rem, 4vw, 2.6rem);
  color: #fff;
}

.page-banner p {
  max-width: 36rem;
  margin-inline: auto;
  opacity: 0.9;
  font-size: 1.05rem;
}

.page-banner .btn { margin-top: 1.5rem; }

/* Sections */
.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--white);
}

.section-head {
  text-align: center;
  max-width: 40rem;
  margin: 0 auto 3rem;
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.65rem, 3vw, 2.15rem);
}

.section-head p {
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.section-label {
  display: inline-block;
  margin-bottom: 0.65rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
}

/* Capability cards */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.cap-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.cap-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.cap-icon {
  width: 3.25rem;
  height: 3.25rem;
  margin-bottom: 1.25rem;
  border-radius: var(--radius);
  background: var(--primary-light);
  display: grid;
  place-items: center;
  color: var(--primary);
}

.cap-card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.2rem;
}

.cap-card p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.cap-card a {
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
}

.cap-card a:hover { text-decoration: underline; }

/* Product showcase */
.showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.showcase.reverse { direction: rtl; }
.showcase.reverse > * { direction: ltr; }

.showcase-copy h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 2.8vw, 1.95rem);
}

.showcase-copy p {
  color: var(--ink-soft);
  margin-bottom: 1.25rem;
}

.showcase-img {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  cursor: zoom-in;
  background: var(--white);
}

.showcase-img img,
.showcase-img svg {
  width: 100%;
  height: auto;
}

/* Scenario cards */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.scenario-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.scenario-card:hover {
  background: var(--primary-light);
  border-color: rgba(0, 102, 179, 0.25);
  transform: translateY(-4px);
}

.scenario-icon {
  width: 3.5rem;
  height: 3.5rem;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  background: var(--primary-light);
  display: grid;
  place-items: center;
  color: var(--primary);
}

.scenario-card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
}

.scenario-card p {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin-bottom: 1.25rem;
}

/* Stats */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
  margin-bottom: 3.5rem;
}

.stat-item .num {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
}

.stat-item .label {
  margin-top: 0.35rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.logo-wall {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.25rem;
}

.logo-placeholder {
  height: 3.5rem;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  color: var(--ink-muted);
  font-size: 0.78rem;
  background: var(--white);
}

/* Product page modules */
.product-module {
  padding: 4.5rem 0;
  border-bottom: 1px solid var(--line);
}

.product-module:last-of-type { border-bottom: none; }

.product-module:nth-child(even) {
  background: var(--white);
}

.module-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.module-grid.flip .module-visual { order: 2; }
.module-grid.flip .module-copy { order: 1; }

.module-copy h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.45rem, 2.5vw, 1.85rem);
}

.module-copy p {
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

.feature-list {
  margin: 1.25rem 0 1.5rem;
}

.feature-list li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.55rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

.module-visual {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

/* Solutions page */
.solution-block {
  padding: 4rem 0;
  border-bottom: 1px solid var(--line);
}

.solution-block:nth-child(even) { background: var(--white); }

.solution-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.solution-header h2 {
  margin: 0;
  font-size: clamp(1.45rem, 2.5vw, 1.85rem);
}

.solution-tag {
  padding: 0.25rem 0.75rem;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 999px;
}

.solution-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: start;
}

.pain-points {
  background: #fafbfc;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.pain-points h4 {
  margin: 0 0 0.75rem;
  font-size: 0.92rem;
  color: var(--primary);
}

.pain-points li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.45rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.pain-points li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--ink-muted);
}

/* About page */
.about-intro {
  max-width: 48rem;
  margin: 0 auto 3rem;
  text-align: center;
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.85;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.advantage-item {
  text-align: center;
  padding: 1.75rem 1.25rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.advantage-item h3 {
  margin: 0.75rem 0 0.5rem;
  font-size: 1.05rem;
}

.advantage-item p {
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.timeline {
  position: relative;
  max-width: 640px;
  margin: 0 auto 4rem;
  padding-left: 2rem;
  border-left: 2px solid var(--primary-light);
}

.timeline-item {
  position: relative;
  padding-bottom: 2rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-2rem - 5px);
  top: 0.35rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--white);
  box-shadow: 0 0 0 2px var(--primary-light);
}

.timeline-year {
  font-weight: 700;
  color: var(--primary);
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.timeline-item p {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* Contact */
.contact-section {
  background: var(--white);
  border-top: 1px solid var(--line);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
}

.contact-info h3 {
  margin: 0 0 1.25rem;
  font-size: 1.25rem;
}

.info-list li {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.info-list strong {
  color: var(--ink);
  min-width: 4rem;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
}

.contact-form span {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 0.8rem 0.95rem;
  border: 1px solid rgba(0, 102, 179, 0.22);
  border-radius: var(--radius);
  font: inherit;
  background: var(--bg);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 179, 0.15);
}

.form-success {
  padding: 0.85rem 1rem;
  background: #e8f8ef;
  color: #1a6b3a;
  border-radius: var(--radius);
  font-size: 0.92rem;
}

.form-note {
  font-size: 0.8rem;
  color: var(--ink-muted);
}

/* CTA band */
.cta-band {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  text-align: center;
  padding: 4rem 0;
}

.cta-band h2 {
  margin: 0 0 0.75rem;
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.cta-band p {
  opacity: 0.9;
  margin-bottom: 1.75rem;
  max-width: 32rem;
  margin-inline: auto;
}

.cta-band .btn-primary {
  background: #fff;
  color: var(--primary);
}

.cta-band .btn-primary:hover {
  background: var(--primary-light);
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.75);
  padding: 3.5rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand .logo { color: #fff; }
.footer-brand .logo-text span { color: rgba(255,255,255,0.55); }

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.88rem;
  line-height: 1.7;
  max-width: 20rem;
}

.site-footer h4 {
  margin: 0 0 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.04em;
}

.site-footer li {
  margin-bottom: 0.5rem;
  font-size: 0.88rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
}

.site-footer a:hover { color: #fff; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.82rem;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.85);
  display: grid;
  place-items: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox img,
.lightbox svg {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background: rgba(255,255,255,0.15);
  color: #fff;
  font-size: 1.5rem;
  border-radius: 50%;
  cursor: pointer;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Mock UI SVG shared styles */
.mock-ui {
  width: 100%;
  aspect-ratio: 16/10;
  background: #1e2936;
}

/* Responsive */
@media (max-width: 960px) {
  .nav { display: none; }
  .header-actions .btn-sm { display: none; }
  .nav-toggle { display: flex; flex-direction: column; justify-content: center; }

  .cap-grid,
  .scenario-grid,
  .stats-row,
  .logo-wall,
  .advantage-grid,
  .module-grid,
  .solution-grid,
  .showcase,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .showcase,
  .module-grid,
  .solution-grid,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .module-grid.flip .module-visual,
  .module-grid.flip .module-copy { order: unset; }

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

@media (max-width: 640px) {
  .cap-grid,
  .scenario-grid,
  .stats-row,
  .advantage-grid {
    grid-template-columns: 1fr;
  }

  .logo-wall { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 3.5rem 0; }
  .hero-inner { padding: 3.5rem 0 4rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .hero-inner h1, .hero-sub, .hero-tags, .hero-cta {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}