/* ============================================================
   Kimi K3 Design Upgrade — "Clinical Precision"
   豪泰生物官网实验版视觉系统
   加载顺序：style.css 之后，作为覆盖与扩展层
   ============================================================ */

:root {
  --k3-ink: #0b3540;
  --k3-ink-deep: #072a33;
  --k3-primary: #128297;
  --k3-primary-dark: #0b6b7d;
  --k3-accent: #35a5b8;
  --k3-text: #12242b;
  --k3-muted: #4e656d;
  --k3-faint: #7e959c;
  --k3-line: #dde9eb;
  --k3-bg: #ffffff;
  --k3-soft: #f4f9fa;
  --k3-soft-2: #edf5f6;
  --k3-max: 1280px;
  --k3-ease: cubic-bezier(0.22, 0.7, 0.25, 1);
}

/* ---------- 基础排版 ---------- */
body {
  color: var(--k3-text);
  background: var(--k3-bg);
}

.container { width: min(100% - 48px, var(--k3-max)); }

.section { padding: 104px 0; }

/* 编辑式标题区：左对齐 + 英文小标签 */
.section-heading {
  margin-bottom: 64px;
  text-align: left;
}
.section-heading h2 {
  max-width: 720px;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.section-heading p {
  max-width: 600px;
  margin: 18px 0 0;
  color: var(--k3-muted);
  font-size: 15px;
  line-height: 1.9;
}
.section-heading.center-heading { text-align: left; }
.section-heading.center-heading h2,
.section-heading.center-heading p { margin-left: 0; margin-right: 0; }
.heading-line { display: none; }

.section-kicker,
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px !important;
  color: var(--k3-primary) !important;
  font-size: 12px !important;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.section-kicker::before,
.hero-kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--k3-primary);
}

/* ---------- 按钮 ---------- */
.btn,
.partner-btn,
.hero-btn,
.form-submit {
  min-height: 46px;
  padding: 12px 26px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fff;
  background: var(--k3-ink);
  box-shadow: none;
  transition: background 0.2s ease, transform 0.2s ease;
}
.btn:hover,
.partner-btn:hover,
.hero-btn:hover,
.form-submit:hover {
  background: var(--k3-primary-dark);
  transform: translateY(-1px);
}
.light-btn {
  background: #fff;
  color: var(--k3-ink);
}
.light-btn:hover { background: var(--k3-soft-2); color: var(--k3-primary-dark); }

/* ---------- 导航 ---------- */
.navbar {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--k3-line);
  backdrop-filter: blur(18px);
}
.nav-inner { height: 76px; }
.nav-logo img { width: 172px; height: 64px; }
.nav-links > a,
.nav-parent {
  color: #2c3e45;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.nav-links > a:hover,
.nav-links > a.active,
.nav-parent:hover,
.nav-item.active .nav-parent { color: var(--k3-primary-dark); }
.nav-links > a.active::after,
.nav-item.active .nav-parent::after {
  height: 2px;
  background: var(--k3-primary);
}
.nav-dropdown {
  border: 1px solid var(--k3-line);
  border-radius: 6px;
  box-shadow: 0 24px 48px rgba(11, 53, 64, 0.12);
}
.nav-dropdown a:hover,
.nav-dropdown a.active { color: var(--k3-primary-dark); background: var(--k3-soft); }
.nav-phone { color: var(--k3-primary-dark); }

/* ---------- 首页 Hero ---------- */
.home-hero {
  height: clamp(640px, 52vw, 760px);
  background: var(--k3-soft-2);
}
.home-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(237, 245, 246, 0.92) 0%, rgba(237, 245, 246, 0.55) 38%, rgba(237, 245, 246, 0) 62%);
  pointer-events: none;
}
.home-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--k3-primary-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.home-hero-eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--k3-primary-dark);
}
.home-hero-copy h1 {
  font-size: clamp(46px, 4vw, 62px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.015em;
}
.home-hero-copy > p:last-of-type {
  color: var(--k3-muted);
  font-size: 16px;
  line-height: 1.9;
}
.home-hero-cta {
  gap: 18px;
  min-width: 188px;
  min-height: 48px;
  padding: 12px 24px;
  border: 1px solid var(--k3-ink);
  border-radius: 4px;
  color: #fff;
  background: var(--k3-ink);
  letter-spacing: 0.02em;
}
.home-hero-cta:hover {
  border-color: var(--k3-primary-dark);
  background: var(--k3-primary-dark);
}

/* 业务切换轨道：序号 + 细分隔线 */
.hero-business-rail { width: min(880px, 78vw); }
.hero-business-rail::before { background: rgba(11, 53, 64, 0.16); }
.hero-business-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-height: 66px;
  padding: 14px 16px 20px;
  color: #5d727a;
  font-size: 14px;
  letter-spacing: 0.02em;
}
.hero-business-index {
  color: var(--k3-faint);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  transition: color 180ms ease;
}
.hero-business-item.active .hero-business-index,
.hero-business-item:hover .hero-business-index { color: var(--k3-primary); }
.hero-business-item::after { height: 2px; background: var(--k3-primary); }
.hero-business-item.active { color: var(--k3-ink); }

/* 场景详情带 */
.precision-story-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--k3-primary-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.precision-story-kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--k3-primary-dark);
}
.precision-story-content h2 { letter-spacing: -0.01em; }
.precision-story-link {
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(18, 130, 151, 0.4);
  color: var(--k3-primary-dark);
}

/* ---------- 首页：企业数据带 ---------- */
.k3-metrics {
  border-top: 1px solid var(--k3-line);
  border-bottom: 1px solid var(--k3-line);
  background: #fff;
}
.k3-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.k3-metrics-grid > div {
  padding: 40px 32px;
  border-left: 1px solid var(--k3-line);
}
.k3-metrics-grid > div:first-child { border-left: 0; padding-left: 0; }
.k3-metrics-grid strong {
  display: block;
  margin-bottom: 10px;
  color: var(--k3-ink);
  font-size: clamp(30px, 2.6vw, 40px);
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.k3-metrics-grid strong em {
  font-style: normal;
  color: var(--k3-primary);
}
.k3-metrics-grid span {
  color: var(--k3-muted);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 首页：解决方案三联 ---------- */
.k3-solutions { background: var(--k3-soft); }
.k3-solution-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.k3-solution-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--k3-line);
  border-radius: 8px;
  background: #fff;
  transition: border-color 0.25s ease, transform 0.35s var(--k3-ease), box-shadow 0.35s var(--k3-ease);
}
.k3-solution-card:hover {
  border-color: rgba(18, 130, 151, 0.35);
  transform: translateY(-5px);
  box-shadow: 0 24px 48px rgba(11, 53, 64, 0.1);
}
.k3-solution-media { aspect-ratio: 16 / 10; overflow: hidden; background: var(--k3-soft-2); }
.k3-solution-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--k3-ease);
}
.k3-solution-card:hover .k3-solution-media img { transform: scale(1.04); }
.k3-solution-body { display: flex; flex: 1; flex-direction: column; padding: 28px 28px 30px; }
.k3-solution-no {
  color: var(--k3-primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.k3-solution-body h3 {
  margin: 10px 0 10px;
  font-size: 20px;
  line-height: 1.35;
  font-weight: 800;
}
.k3-solution-body p {
  flex: 1;
  color: var(--k3-muted);
  font-size: 14px;
  line-height: 1.8;
}
.k3-solution-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
  margin-top: 20px;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(18, 130, 151, 0.4);
  color: var(--k3-primary-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.k3-solution-link svg { width: 15px; height: 15px; transition: transform 0.2s ease; }
.k3-solution-link:hover svg { transform: translateX(4px); }

/* ---------- 首页：品牌中心（编辑式品牌行） ---------- */
.k3-brands { scroll-margin-top: 96px; }
.k3-brand-list { border-top: 1px solid var(--k3-line); }
.k3-brand-row {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(40px, 5vw, 88px);
  align-items: center;
  padding: 72px 0;
  border-bottom: 1px solid var(--k3-line);
  scroll-margin-top: 108px;
}
.k3-brand-row:nth-child(even) .k3-brand-info { order: 2; }
.k3-brand-row:nth-child(even) .k3-brand-media { order: 1; }
.k3-brand-role {
  display: inline-block;
  margin-bottom: 22px;
  padding: 5px 12px;
  border: 1px solid rgba(18, 130, 151, 0.3);
  border-radius: 3px;
  color: var(--k3-primary-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}
.k3-brand-role-agency { color: #175991; border-color: rgba(23, 89, 145, 0.3); }
.k3-brand-logo { height: 52px; margin-bottom: 26px; }
.k3-brand-logo img {
  max-height: 52px;
  max-width: 260px;
  object-fit: contain;
  object-position: left center;
}
.k3-brand-info h3 {
  margin-bottom: 12px;
  font-size: clamp(22px, 2vw, 27px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.k3-brand-info > p {
  max-width: 480px;
  color: var(--k3-muted);
  font-size: 15px;
  line-height: 1.9;
}
.k3-brand-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.k3-brand-points li {
  padding: 6px 13px;
  border: 1px solid var(--k3-line);
  border-radius: 3px;
  color: var(--k3-muted);
  background: var(--k3-soft);
  font-size: 12px;
  font-weight: 600;
}
.k3-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
  margin-top: 28px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(18, 130, 151, 0.4);
  color: var(--k3-primary-dark);
  font-size: 14px;
  font-weight: 800;
}
.k3-brand-link svg { width: 16px; height: 16px; transition: transform 0.2s ease; }
.k3-brand-link:hover svg { transform: translateX(4px); }
.k3-brand-media {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  background: var(--k3-soft-2);
  aspect-ratio: 4 / 3;
}
.k3-brand-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--k3-ease);
}
.k3-brand-row:hover .k3-brand-media img { transform: scale(1.03); }

/* ---------- 首页：授权合作带 ---------- */
.partner-section { padding: 104px 0; background: #fff; }
.partner-banner {
  grid-template-columns: 1.05fr 0.95fr;
  border: 1px solid var(--k3-line);
  border-radius: 10px;
  background: var(--k3-soft);
  box-shadow: none;
}
.partner-copy { padding: clamp(40px, 4.5vw, 72px); }
.partner-copy h2 {
  font-size: clamp(28px, 2.6vw, 36px);
  font-weight: 800;
  letter-spacing: -0.01em;
}
.partner-copy p { color: var(--k3-muted); }
.partner-visual::before { content: none; }
.handshake-card {
  right: 50%;
  bottom: 50%;
  width: 300px;
  height: 168px;
  border: 1px solid var(--k3-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 24px 48px rgba(11, 53, 64, 0.12);
  transform: translate(50%, 50%);
}
.handshake-icon { color: var(--k3-primary); }

/* ---------- 首页：服务能力 ---------- */
.service-section { padding: 104px 0; }
.service-strip { gap: 0; border-top: 1px solid var(--k3-line); }
.service-strip article {
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  padding: 36px 28px 8px;
  border-left: 1px solid var(--k3-line);
}
.service-strip article:first-child { border-left: 0; padding-left: 0; }
.service-strip svg { width: 40px; height: 40px; color: var(--k3-primary); }
.service-strip h3 { font-size: 17px; font-weight: 800; }
.service-strip p { color: var(--k3-muted); font-size: 13px; line-height: 1.75; }

/* ---------- 首页：深色联系带 ---------- */
.contact-band {
  background:
    radial-gradient(1200px 400px at 85% 20%, rgba(53, 165, 184, 0.14), transparent 60%),
    linear-gradient(160deg, var(--k3-ink) 0%, var(--k3-ink-deep) 100%);
}
.contact-band-inner { min-height: 240px; }
.contact-band h2 { font-weight: 800; letter-spacing: -0.01em; }
.contact-band-item { border-left: 1px solid rgba(255, 255, 255, 0.16); }
.contact-band-item span { color: rgba(255, 255, 255, 0.62); }

/* ---------- 内页 Hero ---------- */
.inner-hero {
  background: linear-gradient(150deg, #f6fafb, var(--k3-soft-2));
  border-bottom: 1px solid var(--k3-line);
}
.inner-hero-copy h1 { letter-spacing: -0.015em; }
.hero-category-links a {
  border: 1px solid rgba(18, 130, 151, 0.3);
  border-radius: 4px;
  color: var(--k3-primary-dark);
  background: #fff;
}
.hero-category-links a:hover,
.hero-category-links a.active {
  color: #fff;
  border-color: var(--k3-primary-dark);
  background: var(--k3-primary-dark);
}
.company-facts { border-top: 1px solid var(--k3-line); }
.company-facts strong { color: var(--k3-ink); font-size: 17px; }

/* ---------- 产品中心：解决方案导语 ---------- */
.k3-solution-intro { padding: 96px 0 0; }
.k3-solution-intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--k3-line);
}
.k3-solution-intro-grid article {
  padding: 34px 30px 34px;
  border-left: 1px solid var(--k3-line);
}
.k3-solution-intro-grid article:first-child { border-left: 0; padding-left: 0; }
.k3-solution-intro-grid strong {
  display: block;
  margin-bottom: 16px;
  color: var(--k3-primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.k3-solution-intro-grid h3 {
  margin-bottom: 10px;
  font-size: 19px;
  font-weight: 800;
}
.k3-solution-intro-grid p {
  color: var(--k3-muted);
  font-size: 13px;
  line-height: 1.8;
}

/* ---------- 产品库 ---------- */
.product-library-section { padding-top: 72px; }
.product-library-heading { margin-bottom: 44px; }
.sidebar {
  border: 1px solid var(--k3-line);
  border-radius: 8px;
  box-shadow: none;
}
.sidebar-header {
  padding: 20px 22px;
  color: var(--k3-ink);
  background: var(--k3-soft);
  border-bottom: 1px solid var(--k3-line);
}
.sidebar-header p { color: var(--k3-faint); letter-spacing: 0.1em; }
.sidebar-nav a.active,
.sidebar-category-header.active {
  color: var(--k3-primary-dark);
  border-left-color: var(--k3-primary);
  background: rgba(18, 130, 151, 0.07);
}
.product-card {
  border: 1px solid var(--k3-line);
  border-radius: 8px;
  box-shadow: none;
  transition: transform 0.3s var(--k3-ease), box-shadow 0.3s var(--k3-ease), border-color 0.3s ease;
}
.product-card:hover {
  border-color: rgba(18, 130, 151, 0.35);
  box-shadow: 0 20px 44px rgba(11, 53, 64, 0.1);
}
.product-card-info .meta span {
  border-radius: 3px;
  color: var(--k3-primary-dark);
  background: rgba(18, 130, 151, 0.08);
}
.product-card-brand { color: var(--k3-primary-dark); }
.search-bar { border-radius: 6px; box-shadow: none; }
.search-bar button { background: var(--k3-ink); }
.search-bar button:hover { background: var(--k3-primary-dark); }
.page-btn.active { background: var(--k3-primary-dark); border-color: var(--k3-primary-dark); }
.product-category-summary strong { color: var(--k3-ink); }

/* ---------- 关于豪泰 ---------- */
.company-profile-grid h2 { letter-spacing: -0.01em; }
.company-principles article > span {
  color: var(--k3-primary);
  font-size: 12px;
  letter-spacing: 0.12em;
}
.company-principles h3 { color: var(--k3-ink); }
.capability-section { background: var(--k3-soft); }
.capability-grid h3 { color: var(--k3-ink); }
.capability-grid strong { color: var(--k3-primary); letter-spacing: 0.12em; }
.business-layout-list h3 { font-weight: 800; }
.business-layout-list a { color: var(--k3-primary-dark); }
.business-role { color: var(--k3-primary); letter-spacing: 0.1em; }
.credentials-section { background: var(--k3-soft); }
.credential-metrics strong { color: var(--k3-ink); font-weight: 800; }
.patent-list h4, .certificate-item h4 { font-weight: 700; }
.patent-list article > div > span,
.certificate-item div > span { color: var(--k3-primary); letter-spacing: 0.1em; }
.patent-list article > div > a { color: var(--k3-primary-dark); }
.historical-honors > div > span { color: var(--k3-primary); letter-spacing: 0.1em; }
.historical-honors li::before { background: var(--k3-primary); }

/* ---------- 联系页 / 新闻页 / 详情页 ---------- */
.page-header {
  background: linear-gradient(150deg, var(--k3-ink) 0%, var(--k3-ink-deep) 100%);
}
.contact-item-icon { color: var(--k3-primary-dark); background: rgba(18, 130, 151, 0.08); }
.contact-detail-list a { color: var(--k3-primary-dark); }
.contact-form-wrap { border: 1px solid var(--k3-line); border-radius: 8px; box-shadow: none; }
.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--k3-primary); box-shadow: 0 0 0 3px rgba(18, 130, 151, 0.12); }
.detail-brand { color: var(--k3-primary-dark); }
.detail-meta span,
.detail-features li { border-radius: 3px; color: var(--k3-primary-dark); background: rgba(18, 130, 151, 0.08); }
.detail-thumbs img.active { border-color: var(--k3-primary); }
.news-card, .news-list-item { border: 1px solid var(--k3-line); box-shadow: none; }

/* ---------- 页脚 ---------- */
.footer {
  color: #9db6bd;
  background: linear-gradient(170deg, var(--k3-ink) 0%, var(--k3-ink-deep) 100%);
}
.footer-grid { padding: 72px 0 48px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.footer h4 {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
}
.footer-bottom { color: #6e8a92; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 首页旧品牌矩阵样式失效保护 ---------- */
.brand-section .brand-showcase,
.poster-matrix-section { display: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1180px) {
  .k3-metrics-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .k3-metrics-grid > div { padding: 30px 26px; }
  .k3-metrics-grid > div:nth-child(odd) { border-left: 0; padding-left: 0; }
  .k3-metrics-grid > div:nth-child(n + 3) { border-top: 1px solid var(--k3-line); }
  .service-strip article { padding: 30px 22px 8px; }
}

@media (max-width: 980px) {
  .k3-solution-grid { grid-template-columns: 1fr; }
  .k3-solution-intro-grid { grid-template-columns: 1fr; }
  .k3-solution-intro-grid article { border-left: 0; border-top: 1px solid var(--k3-line); padding-left: 0; }
  .k3-solution-intro-grid article:first-child { border-top: 0; }
  .k3-brand-row { grid-template-columns: 1fr; gap: 32px; padding: 56px 0; }
  .k3-brand-row:nth-child(even) .k3-brand-info { order: 1; }
  .k3-brand-row:nth-child(even) .k3-brand-media { order: 2; }
}

@media (max-width: 767px) {
  .container { width: min(100% - 32px, var(--k3-max)); }
  .section { padding: 64px 0; }
  .section-heading { margin-bottom: 40px; }
  .home-hero::after {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.72) 46%, rgba(255, 255, 255, 0) 78%);
  }
  .hero-business-item { min-height: 78px; padding: 16px 6px 14px; gap: 3px; }
  .hero-business-index { font-size: 10px; }
  .k3-metrics-grid { grid-template-columns: 1fr 1fr; }
  .k3-metrics-grid > div { padding: 24px 20px; }
  .partner-section, .service-section { padding: 64px 0; }
  .service-strip { border-top: 0; }
  .service-strip article { border-left: 0; border-top: 1px solid var(--k3-line); padding: 26px 0 6px; }
  .handshake-card { width: min(300px, 82%); }
  .k3-solution-intro { padding: 64px 0 0; }
  .contact-band-item { border-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .k3-solution-card,
  .k3-solution-media img,
  .k3-brand-media img,
  .product-card { transition: none; }
}