:root {
  --color-primary: #38a0b0;
  --color-primary-dark: #236f7d;
  --color-accent: #78cbd5;
  --color-red: #c72b33;
  --color-text: #141f25;
  --color-text-secondary: #536970;
  --color-text-light: #8a9ea4;
  --color-border: #d9e8eb;
  --color-bg: #ffffff;
  --color-bg-soft: #f3f9fa;
  --shadow-soft: 0 16px 42px rgba(27, 89, 101, 0.1);
  --shadow-card: 0 8px 24px rgba(32, 97, 109, 0.09);
  --radius: 8px;
  --max-width: 1200px;
  --transition: 0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--color-text);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }
button { border: 0; background: none; cursor: pointer; }
input, textarea { border: 0; outline: 0; }

.container { width: min(100% - 48px, var(--max-width)); margin: 0 auto; }
.section { padding: 58px 0; }
.section-heading { margin-bottom: 38px; }
.center-heading { text-align: center; }
.section-heading h2 {
  font-size: 34px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0;
}
.section-heading p {
  max-width: 680px;
  margin: 12px auto 0;
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1.8;
}
.heading-line {
  width: 52px;
  height: 3px;
  margin: 16px auto 0;
  background: var(--color-primary);
  border-radius: 3px;
}
.left-line { margin-left: 0; margin-right: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 42px;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}
.btn svg { width: 16px; height: 16px; }
.btn:hover { transform: translateY(-1px); }
.hero-btn, .partner-btn {
  color: #fff;
  background: linear-gradient(135deg, #43aaba, #2b7f8e);
  box-shadow: 0 14px 30px rgba(56, 160, 176, 0.24);
}
.light-btn { background: #fff; color: var(--color-primary); }

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(29, 92, 105, 0.08);
  backdrop-filter: blur(16px);
  transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: 0 8px 28px rgba(29, 92, 105, 0.1); }
.nav-inner {
  height: 84px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-logo {
  min-width: 220px;
  display: flex;
  align-items: center;
}
.nav-logo img { width: 190px; height: 72px; object-fit: contain; object-position: left center; }
.nav-logo span {
  display: flex;
  flex-direction: column;
  gap: 3px;
  color: #16252c;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.1;
  white-space: nowrap;
}
.nav-logo small {
  color: var(--color-text-secondary);
  font-size: 11px;
  font-weight: 500;
}
.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 18px;
}
.nav-links > a, .nav-parent {
  position: relative;
  padding: 29px 0 27px;
  color: #313f45;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}
.nav-links > a:hover, .nav-links > a.active, .nav-parent:hover, .nav-item.active .nav-parent { color: var(--color-primary); }
.nav-links > a.active::after, .nav-item.active .nav-parent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 19px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}
.nav-item { position: relative; align-self: stretch; display: flex; align-items: center; }
.nav-item-line { display: flex; align-items: center; }
.nav-parent { padding-right: 16px; }
.nav-parent::before {
  content: "";
  position: absolute;
  right: 1px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-70%) rotate(45deg);
  transition: transform var(--transition);
}
.nav-item:hover .nav-parent::before, .nav-item:focus-within .nav-parent::before { transform: translateY(-25%) rotate(225deg); }
.nav-submenu-toggle { display: none; }
.nav-dropdown {
  position: absolute;
  top: calc(100% - 8px);
  left: 50%;
  width: 156px;
  padding: 8px;
  visibility: hidden;
  opacity: 0;
  transform: translate(-50%, 8px);
  border: 1px solid rgba(38, 114, 128, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 18px 40px rgba(16, 69, 78, 0.14);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}
.nav-dropdown-wide { width: 190px; }
.nav-item:hover .nav-dropdown, .nav-item:focus-within .nav-dropdown {
  visibility: visible;
  opacity: 1;
  transform: translate(-50%, 0);
}
.nav-dropdown a {
  display: block;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
.nav-dropdown a:hover, .nav-dropdown a.active { color: var(--color-primary); background: var(--color-bg-soft); }
.nav-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 18px;
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 800;
  white-space: nowrap;
}
.nav-phone svg { width: 20px; height: 20px; }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; margin-left: auto; }
.hamburger span { width: 24px; height: 2px; background: var(--color-text); border-radius: 2px; transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Homepage ===== */
.hero { margin-top: 84px; }
.hero-redesign {
  min-height: 500px;
  background: #f6fbfc;
  overflow: hidden;
  position: relative;
}
.hero-redesign::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.98) 0%, rgba(255,255,255,0.92) 31%, rgba(255,255,255,0.42) 52%, rgba(255,255,255,0.04) 72%),
    linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0));
  pointer-events: none;
  z-index: 1;
}
.hero-redesign-inner {
  position: relative;
  min-height: 500px;
}
.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 520px;
  padding-top: 112px;
  padding-bottom: 88px;
}
.hero-copy h1 {
  margin-bottom: 28px;
  font-size: clamp(44px, 5vw, 60px);
  line-height: 1.28;
  letter-spacing: 0;
  font-weight: 850;
}
.hero-copy h1 span { color: var(--color-red); }
.hero-copy p {
  max-width: 490px;
  margin-bottom: 34px;
  color: #526068;
  font-size: 17px;
  line-height: 2;
}
.hero-poster {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.hero-poster img {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  max-width: none;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.brand-section { padding-top: 44px; }
.poster-matrix-section { padding-top: 34px; }
.poster-matrix {
  overflow: hidden;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid rgba(38, 114, 128, 0.08);
  box-shadow: var(--shadow-card);
}
.poster-matrix img {
  display: block;
  width: 100%;
  height: auto;
}
.poster-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 16px;
  border-top: 1px solid var(--color-border);
  background: linear-gradient(90deg, #fbfefe, #f4fafb);
}
.poster-actions a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 999px;
  color: var(--color-primary);
  background: #fff;
  border: 1px solid rgba(56,160,176,0.2);
  font-size: 14px;
  font-weight: 800;
  transition: var(--transition);
}
.poster-actions a:hover {
  transform: translateY(-2px);
  color: #fff;
  background: var(--color-primary);
  box-shadow: 0 10px 22px rgba(56,160,176,0.18);
}
.brand-showcase {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.brand-tile {
  position: relative;
  min-height: 470px;
  overflow: hidden;
  border-radius: var(--radius);
  padding: 44px 38px 28px;
  background: linear-gradient(135deg, #f6fcfd, #ffffff);
  border: 1px solid rgba(38, 114, 128, 0.08);
  box-shadow: var(--shadow-card);
}
.brand-tile::after {
  content: "";
  position: absolute;
  inset: auto -18% -22% 8%;
  height: 250px;
  background: radial-gradient(ellipse, rgba(56,160,176,0.12), transparent 62%);
}
.brand-logo-row { height: 62px; display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.brand-logo-row img { max-height: 36px; max-width: 72px; object-fit: contain; object-position: left center; opacity: 0.72; }
.brand-wordmark { display: inline-flex; align-items: baseline; gap: 8px; font-size: 31px; line-height: 1; letter-spacing: 0; }
.brand-wordmark em { font-style: normal; font-size: 22px; font-weight: 800; }
.reskincal-word { color: #236f7d; font-family: Arial, "Microsoft YaHei", sans-serif; }
.reskincal-word em { color: #38a0b0; }
.yibolun-word { color: #1069a7; font-size: 33px; }
.brand-reskincal .brand-logo-row img { display: none; }
.brand-yibolun .brand-logo-row img { max-height: 34px; width: 58px; }
.kanghua-logo img { max-height: 54px; }
.brand-tile h3 { margin-bottom: 8px; color: var(--color-primary-dark); font-size: 19px; font-weight: 800; }
.brand-tile p { color: var(--color-text-secondary); font-size: 15px; line-height: 1.75; }
.brand-tile a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  padding: 7px 18px;
  border: 1px solid rgba(56,160,176,0.48);
  border-radius: 999px;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
}
.brand-tile a svg { width: 14px; height: 14px; }
.brand-product {
  position: absolute;
  left: 32px;
  right: 32px;
  bottom: 26px;
  z-index: 2;
  height: 200px;
}
.skincare-pack .mask {
  position: absolute;
  bottom: 0;
  width: 92px;
  height: 112px;
  border-radius: 44% 44% 34% 34%;
  background: linear-gradient(150deg, rgba(255,255,255,0.92), rgba(219,244,241,0.74));
  border: 1px solid rgba(56,160,176,0.18);
  box-shadow: inset 0 0 18px rgba(56,160,176,0.07);
}
.skincare-pack .mask-left { left: 0; transform: rotate(-12deg); }
.skincare-pack .tube {
  position: absolute;
  bottom: 0;
  left: 94px;
  width: 58px;
  height: 152px;
  border-radius: 4px 4px 10px 10px;
  background: linear-gradient(90deg, #fff, #eef9f9);
  border: 1px solid rgba(56,160,176,0.18);
}
.skincare-pack .box {
  position: absolute;
  right: 5px;
  bottom: 0;
  width: 144px;
  height: 156px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: var(--color-primary);
  background: linear-gradient(135deg, #fff, #e8f8f7);
  border: 1px solid rgba(56,160,176,0.16);
  box-shadow: 0 18px 34px rgba(56,160,176,0.12);
  font-size: 15px;
  font-weight: 800;
  text-align: center;
}
.skincare-pack small { font-size: 13px; color: #e6007e; }
.device-pack, .reagent-pack { display: flex; align-items: flex-end; justify-content: center; gap: 8px; }
.device-pack img:nth-child(1) { width: 35%; }
.device-pack img:nth-child(2) { width: 34%; }
.device-pack img:nth-child(3) { width: 42%; }
.reagent-pack img { width: 100%; height: 190px; object-fit: contain; }

/* Homepage brand matrix: fixed hierarchy matching the approved visual. */
.brand-section {
  padding-top: 64px;
  scroll-margin-top: 102px;
  background: #fff;
}
.brand-showcase { gap: 18px; }
.brand-tile {
  display: flex;
  flex-direction: column;
  isolation: isolate;
  min-height: 500px;
  padding: 32px 30px 0;
  border-color: rgba(38, 114, 128, 0.1);
  box-shadow: 0 10px 30px rgba(42, 101, 113, 0.06);
}
.brand-tile[id] { scroll-margin-top: 108px; }
.brand-skinregn { background: linear-gradient(145deg, #edfafa 0%, #f6fcfd 54%, #eaf7f9 100%); }
.brand-yibolun { background: linear-gradient(145deg, #f1f8fd 0%, #f7fbfe 54%, #edf6fc 100%); }
.brand-kanghua { background: linear-gradient(145deg, #f2f7fb 0%, #f8fbfd 52%, #eaf4fa 100%); }
.brand-tile::after { content: none; }
.brand-logo-row {
  position: relative;
  z-index: 2;
  height: 58px;
  margin-bottom: 12px;
}
.brand-logo-row img {
  width: auto;
  max-width: 244px;
  max-height: 56px;
  opacity: 1;
}
.brand-skinregn .brand-logo-row img { width: 226px; }
.brand-yibolun .brand-logo-row img { width: 188px; max-height: 54px; }
.brand-kanghua .brand-logo-row img { width: 232px; }
.brand-tile h3,
.brand-tile p,
.brand-tile a { position: relative; z-index: 2; }
.brand-tile h3 { margin-bottom: 6px; font-size: 18px; }
.brand-tile p { min-height: 50px; font-size: 14px; line-height: 1.75; }
.brand-tile a {
  width: fit-content;
  margin-top: 14px;
  border-color: rgba(56, 160, 176, 0.48);
}
.brand-product-photo {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  height: 62%;
  overflow: hidden;
  background: transparent;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.28) 10%, #000 28%, #000 100%);
  mask-image: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.28) 10%, #000 28%, #000 100%);
  pointer-events: none;
}
.brand-product-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.96) contrast(0.98);
}
.brand-skinregn .brand-product-photo img { object-position: 56% 56%; }
.product-photo-devices img {
  object-position: 82% 58%;
}
.product-photo-clinical img {
  object-position: 34% 52%;
  transform: scale(1.18);
  transform-origin: 40% 55%;
}
.partner-brand-logo {
  width: 230px;
  height: 54px;
  object-fit: contain;
  object-position: left center;
  margin: 24px 0 18px;
}

.partner-section { padding-top: 22px; }
.partner-banner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  min-height: 310px;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid rgba(38, 114, 128, 0.09);
  background: #f8fcfd;
  box-shadow: var(--shadow-card);
}
.partner-copy { padding: 40px; }
.partner-copy h2 { font-size: 32px; line-height: 1.25; font-weight: 850; }
.partner-copy img { width: 238px; margin: 26px 0 18px; }
.partner-copy p { max-width: 430px; color: var(--color-text-secondary); line-height: 1.85; }
.partner-btn { margin-top: 20px; }
.partner-visual {
  position: relative;
  background:
    linear-gradient(90deg, rgba(248,252,253,0.08), rgba(248,252,253,0.78)),
    linear-gradient(135deg, #e7f2f4, #ffffff);
}
.partner-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(145deg, transparent 0 36%, rgba(56,160,176,0.08) 36% 100%),
    radial-gradient(circle at 70% 35%, rgba(56,160,176,0.16), transparent 36%);
}
.handshake-card {
  position: absolute;
  right: 64px;
  bottom: 34px;
  width: 310px;
  height: 170px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: rgba(255,255,255,0.92);
  border: 10px solid #23323a;
  box-shadow: 0 22px 42px rgba(15, 47, 55, 0.18);
}
.handshake-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  margin-bottom: 8px;
  color: var(--color-primary);
}
.handshake-icon svg { width: 46px; height: 46px; }
.handshake-card strong { font-size: 22px; }
.handshake-card small { color: var(--color-text-secondary); margin-top: 6px; }

.service-section { padding-top: 38px; }
.service-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}
.service-strip article {
  display: flex;
  gap: 18px;
  align-items: center;
}
.service-strip svg {
  width: 62px;
  height: 62px;
  color: var(--color-primary);
  flex: 0 0 auto;
}
.service-strip h3 { margin-bottom: 6px; font-size: 17px; }
.service-strip p { color: var(--color-text-secondary); font-size: 14px; line-height: 1.6; }

.contact-band {
  color: #fff;
  background:
    linear-gradient(90deg, rgba(56,160,176,0.95), rgba(38,127,143,0.93)),
    linear-gradient(135deg, #38a0b0, #236f7d);
}
.contact-band-inner {
  min-height: 205px;
  display: grid;
  grid-template-columns: 1.1fr 0.8fr 1fr;
  align-items: center;
  gap: 48px;
}
.contact-band h2 { margin-bottom: 10px; font-size: 32px; line-height: 1.2; }
.contact-band p { margin-bottom: 20px; color: rgba(255,255,255,0.82); }
.contact-band-item {
  min-height: 120px;
  padding-left: 34px;
  border-left: 1px dashed rgba(255,255,255,0.45);
}
.contact-band-item svg { width: 26px; height: 26px; margin-bottom: 10px; opacity: 0.9; }
.contact-band-item span { display: block; margin-bottom: 8px; color: rgba(255,255,255,0.76); font-size: 14px; }
.contact-band-item strong { font-size: 16px; line-height: 1.8; }

/* ===== Shared Pages ===== */
.page-header {
  margin-top: 84px;
  padding: 78px 0 70px;
  color: #fff;
  text-align: center;
  background: linear-gradient(135deg, #0a6370, #07333d);
}
.page-header h1 { margin-bottom: 8px; font-size: 42px; line-height: 1.2; }
.page-header p { color: rgba(255,255,255,0.82); }

/* ===== Inner page system ===== */
.inner-hero {
  margin-top: 84px;
  overflow: hidden;
  background: linear-gradient(135deg, #f7fcfd, #edf7f8);
  border-bottom: 1px solid rgba(38, 114, 128, 0.08);
}
.about-page-hero { scroll-margin-top: 84px; }
.inner-hero-grid {
  min-height: 430px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: stretch;
  gap: 56px;
}
.inner-hero-copy { align-self: center; padding: 64px 0; }
.hero-kicker {
  margin-bottom: 14px;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 800;
}
.inner-hero-copy h1 {
  max-width: 620px;
  margin-bottom: 22px;
  font-size: clamp(40px, 4.4vw, 56px);
  line-height: 1.18;
  font-weight: 850;
}
.inner-hero-copy > p:not(.hero-kicker) {
  max-width: 560px;
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1.85;
}
.inner-hero-media { position: relative; min-height: 430px; overflow: hidden; }
.inner-hero-media::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  z-index: 1;
  width: 22%;
  background: linear-gradient(90deg, #f0f9fa, transparent);
  pointer-events: none;
}
.inner-hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 66% center; }
.company-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}
.company-facts span { min-width: 112px; color: var(--color-text-secondary); font-size: 13px; }
.company-facts strong { display: block; margin-bottom: 3px; color: var(--color-text); font-size: 15px; }
.company-profile-section { padding: 76px 0; }
.company-profile-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 84px; align-items: start; }
.company-profile-grid > div:first-child { position: sticky; top: 116px; }
.company-profile-grid h2 { margin-bottom: 22px; font-size: 34px; line-height: 1.3; }
.company-profile-grid > div:first-child p { margin-bottom: 14px; color: var(--color-text-secondary); line-height: 1.9; }
.company-principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; }
.company-principles article { padding: 24px 0; border-top: 1px solid var(--color-border); }
.company-principles article:last-child { grid-column: 1 / -1; }
.company-principles h3 { margin-bottom: 8px; color: var(--color-primary-dark); font-size: 19px; }
.company-principles p { color: var(--color-text-secondary); line-height: 1.8; }
.capability-section { scroll-margin-top: 84px; background: #f4fafb; }
.capability-section .section-heading, .business-layout-section .section-heading { text-align: left; }
.capability-section .section-heading p, .business-layout-section .section-heading p { margin-left: 0; }
.capability-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--color-border); }
.capability-grid article { min-height: 190px; padding: 30px 28px; border-right: 1px solid var(--color-border); }
.capability-grid article:first-child { padding-left: 0; }
.capability-grid article:last-child { border-right: 0; }
.capability-grid h3 { margin-bottom: 12px; color: var(--color-primary-dark); font-size: 20px; }
.capability-grid p { color: var(--color-text-secondary); line-height: 1.8; }
.business-layout-section { padding: 76px 0; }
.business-layout-list { border-top: 1px solid var(--color-border); }
.business-layout-list article {
  display: grid;
  grid-template-columns: 190px 1fr auto;
  align-items: center;
  gap: 36px;
  min-height: 132px;
  padding: 26px 0;
  border-bottom: 1px solid var(--color-border);
}
.business-layout-list img { width: 170px; max-height: 58px; object-fit: contain; object-position: left center; }
.business-layout-list h3 { margin-bottom: 6px; font-size: 19px; }
.business-layout-list p { color: var(--color-text-secondary); }
.business-layout-list a { color: var(--color-primary); font-size: 14px; font-weight: 800; white-space: nowrap; }

.hero-category-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero-category-links a {
  padding: 8px 14px;
  border: 1px solid rgba(56, 160, 176, 0.24);
  border-radius: 999px;
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  font-weight: 700;
}
.hero-category-links a:hover,
.hero-category-links a.active {
  color: #fff;
  border-color: var(--color-primary);
  background: var(--color-primary);
}
.product-library-section { padding-top: 68px; }
.product-library-heading { margin-bottom: 30px; text-align: left; }
.product-library-heading p { margin-left: 0; }
.products-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 40px; align-items: start; }
.sidebar { overflow: hidden; position: sticky; top: 104px; height: fit-content; }
.sidebar-header { padding: 22px; color: #fff; text-align: left; background: var(--color-primary-dark); }
.sidebar-header h3 { font-size: 18px; font-weight: 800; }
.sidebar-header p { margin-top: 3px; color: rgba(255,255,255,0.7); font-size: 11px; }
.sidebar-nav { padding: 10px 0; }
.sidebar-nav a, .sidebar-category-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  border-left: 3px solid transparent;
  color: var(--color-text-secondary);
  font-size: 14px;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}
.sidebar-nav a:hover, .sidebar-category-header:hover { color: var(--color-primary); background: var(--color-bg-soft); }
.sidebar-nav a.active, .sidebar-category-header.active { color: var(--color-primary); border-left-color: var(--color-primary); background: rgba(56,160,176,0.08); font-weight: 700; }
.sidebar-nav svg, .sidebar-category-header svg { width: 18px; height: 18px; flex-shrink: 0; }
.sidebar-category { border-top: 1px solid var(--color-border); }
.sidebar-category-header { cursor: pointer; }
.sidebar-category-header .arrow { margin-left: auto; font-size: 18px; line-height: 1; transition: transform var(--transition); }
.sidebar-category-header.expanded .arrow { transform: rotate(90deg); }
.sidebar-subcategories { display: none; padding: 6px 0; background: #f8fbfc; }
.sidebar-subcategories.show { display: block; }
.sidebar-subcategories a { padding-left: 46px; font-size: 13px; }
.products-content { min-width: 0; min-height: 400px; }
.products-header { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 18px; }
.products-header h2 { font-size: 24px; font-weight: 800; }
.products-count { color: var(--color-text-light); font-size: 14px; white-space: nowrap; }
.product-category-summary {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 26px;
  align-items: start;
  margin-bottom: 24px;
  padding: 18px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.product-category-summary strong { color: var(--color-primary-dark); font-size: 15px; }
.product-category-summary p { color: var(--color-text-secondary); font-size: 14px; line-height: 1.75; }
.search-bar { margin-bottom: 28px; box-shadow: none; }
.search-bar input { min-width: 0; }
.product-skeleton { min-height: 330px; border-radius: var(--radius); background: linear-gradient(100deg, #f2f7f8 20%, #e7f1f3 40%, #f2f7f8 60%); background-size: 200% 100%; }
@media (prefers-reduced-motion: no-preference) { .product-skeleton { animation: skeleton-shift 1.4s ease infinite; } }
@keyframes skeleton-shift { to { background-position-x: -200%; } }
.products-state { grid-column: 1 / -1; padding: 54px 20px; color: var(--color-text-secondary); text-align: center; border: 1px solid var(--color-border); border-radius: var(--radius); }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

.contact-main-section { padding: 76px 0 86px; }
.contact-main-section .contact-page-grid { align-items: start; grid-template-columns: 0.8fr 1.2fr; gap: 72px; }
.contact-details .section-heading, .contact-form-wrap .section-heading { margin-bottom: 28px; }
.contact-details .section-heading p, .contact-form-wrap .section-heading p { margin-left: 0; }
.contact-detail-list { border-top: 1px solid var(--color-border); }
.contact-detail-list > div { display: grid; grid-template-columns: 110px 1fr; gap: 22px; padding: 20px 0; border-bottom: 1px solid var(--color-border); }
.contact-detail-list dt { color: var(--color-text-secondary); font-size: 14px; }
.contact-detail-list dd { color: var(--color-text); font-weight: 700; line-height: 1.8; }
.contact-detail-list a { color: var(--color-primary); }
.contact-service-note { margin-top: 28px; padding: 22px; border-radius: var(--radius); background: var(--color-bg-soft); }
.contact-service-note strong { display: block; margin-bottom: 7px; color: var(--color-primary-dark); }
.contact-service-note p { color: var(--color-text-secondary); font-size: 14px; line-height: 1.7; }
.contact-form-wrap { padding: 34px; border: 1px solid var(--color-border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-card); }
.contact-form-wrap .contact-form { padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row label { color: var(--color-text); font-size: 14px; font-weight: 700; }
.form-row label span { color: var(--color-text-light); font-size: 12px; font-weight: 500; }
.contact-form input, .contact-form textarea { width: 100%; color: var(--color-text); background: #f8fbfc; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(56,160,176,0.11); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: #71858d; }
.form-submit { align-self: flex-start; border: 0; }
.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.products-grid-focused { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.products-grid-single { grid-template-columns: minmax(0, 520px); }
.product-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid rgba(8,97,108,0.09);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); }
.product-card-img { aspect-ratio: 1; background: var(--color-bg-soft); overflow: hidden; }
.product-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.product-card:hover .product-card-img img { transform: scale(1.04); }
.product-card-info { display: flex; flex: 1; flex-direction: column; padding: 16px; }
.product-card-info h3 {
  min-height: 44px;
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-card-info .meta span {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(56,160,176,0.08);
  color: var(--color-primary);
  font-size: 13px;
}
.product-card-info .meta { margin-top: auto; padding-top: 14px; }
.product-card-featured { box-shadow: 0 10px 30px rgba(42, 101, 113, 0.07); }
.product-card-featured .product-card-img { aspect-ratio: 4 / 3; padding: 18px; background: #f3f9fb; }
.product-card-featured .product-card-img img { object-fit: contain; }
.product-card-featured .product-card-info { padding: 20px; }
.product-card-featured .product-card-info h3 { min-height: 50px; margin-bottom: 10px; font-size: 18px; }
.product-card-brand {
  margin-bottom: 7px;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 800;
}
.product-card-summary {
  min-height: 66px;
  color: var(--color-text-secondary);
  font-size: 13px;
  line-height: 1.7;
}
.product-models { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.product-models span {
  padding: 4px 8px;
  border: 1px solid rgba(56,160,176,0.17);
  border-radius: 4px;
  color: #47656e;
  background: #f7fbfc;
  font-size: 11px;
}
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 40px; }
.page-btn { padding: 8px 16px; border: 1px solid var(--color-border); border-radius: 999px; background: #fff; color: var(--color-text-secondary); }
.page-btn.active { color: #fff; background: var(--color-primary); border-color: var(--color-primary); }
.page-btn.disabled { opacity: 0.5; cursor: not-allowed; }
.search-bar {
  display: flex;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-card);
}
.search-bar input { flex: 1; padding: 12px 16px; }
.search-bar button { padding: 12px 24px; background: var(--color-primary); color: #fff; font-weight: 700; }
.about-hero, .section-alt { background: linear-gradient(180deg, #f7fcfd, #edf7f8); }
.about-hero { margin-top: 84px; padding: 80px 0; }
.about-hero-row, .contact-page-grid, .detail-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.about-hero-text h1 { font-size: 42px; margin-bottom: 20px; }
.about-hero-text p, .contact-item p, .cert-card p, .timeline-item p { color: var(--color-text-secondary); line-height: 1.8; }
.about-hero-img img { max-height: 260px; margin: 0 auto; }
.certs-grid, .service-grid, .advantages-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-grid { grid-template-columns: repeat(4, 1fr); }
.cert-card, .service-grid article, .advantage-card, .contact-item, .contact-form, .news-card, .news-list-item, .sidebar {
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid rgba(8,97,108,0.09);
  box-shadow: var(--shadow-card);
}
.cert-card, .service-grid article, .advantage-card { padding: 28px; }
.cert-card svg, .service-grid svg, .advantage-icon svg { width: 36px; height: 36px; color: var(--color-primary); margin-bottom: 14px; }
.timeline { max-width: 840px; margin: 0 auto; border-left: 2px solid var(--color-primary); padding-left: 32px; }
.timeline-item { position: relative; margin-bottom: 34px; }
.timeline-item::before { content: ""; position: absolute; left: -40px; top: 6px; width: 14px; height: 14px; border-radius: 50%; background: var(--color-primary); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--color-primary); }
.timeline-item .year { color: var(--color-primary); font-weight: 800; margin-bottom: 8px; }
.timeline-item h4 { font-size: 19px; margin-bottom: 8px; }
.contact-info-list { display: flex; flex-direction: column; gap: 18px; }
.contact-item { display: flex; gap: 16px; padding: 18px; }
.contact-item-icon { width: 48px; height: 48px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 50%; background: rgba(56,160,176,0.08); color: var(--color-primary); }
.contact-item-icon svg { width: 24px; height: 24px; }
.contact-form { display: flex; flex-direction: column; gap: 16px; padding: 28px; }
.contact-form input, .contact-form textarea { padding: 13px 15px; border: 1px solid var(--color-border); border-radius: var(--radius); background: #f8fbfc; }
.contact-form textarea { resize: vertical; min-height: 128px; }
.detail-gallery { align-items: flex-start; }
.detail-main-img { border-radius: var(--radius); overflow: hidden; background: #f5fafb; border: 1px solid var(--color-border); }
.detail-main-img img { width: 100%; aspect-ratio: 1; object-fit: contain; }
.detail-thumbs { display: flex; gap: 8px; margin-top: 12px; overflow-x: auto; }
.detail-thumbs img { width: 72px; height: 72px; object-fit: cover; border-radius: 6px; border: 2px solid transparent; cursor: pointer; }
.detail-thumbs img.active { border-color: var(--color-primary); }
.detail-info h1 { margin-bottom: 16px; font-size: 26px; }
.detail-meta, .detail-features ul { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.detail-meta span, .detail-features li { padding: 6px 12px; border-radius: 999px; background: rgba(56,160,176,0.08); color: var(--color-primary); }
.detail-brand { margin-bottom: 8px; color: var(--color-primary); font-size: 13px; font-weight: 800; }
.detail-summary { margin: -4px 0 20px; color: var(--color-text-secondary); line-height: 1.8; }
.detail-features h3 { margin-bottom: 10px; color: var(--color-primary-dark); font-size: 15px; }
.detail-features li { font-size: 13px; }
.detail-note, .detail-consult-note { color: var(--color-text-secondary); font-size: 14px; line-height: 1.8; }
.detail-note { margin-bottom: 14px; padding: 14px 16px; border-left: 3px solid var(--color-primary); background: var(--color-bg-soft); }
.detail-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { overflow: hidden; }
.news-card-img, .news-list-img { height: 200px; background: var(--color-bg-soft); overflow: hidden; }
.news-card-img img, .news-list-img img { width: 100%; height: 100%; object-fit: cover; }
.news-card-body, .news-list-body { padding: 20px; }
.news-list { display: flex; flex-direction: column; gap: 24px; }
.news-list-item { display: grid; grid-template-columns: 240px 1fr; overflow: hidden; }

.footer {
  color: #b7cbd1;
  background: linear-gradient(135deg, #14272f, #071820);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1.3fr;
  gap: 38px;
  padding: 44px 0 34px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand img { width: 150px; filter: brightness(0) invert(1); opacity: 0.92; margin-bottom: 14px; }
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer p, .footer-links a, .footer-contact p { font-size: 14px; line-height: 1.8; }
.footer-links li { margin-bottom: 8px; }
.footer a:hover { color: #fff; }
.footer-bottom { padding: 18px 0; text-align: center; color: #7d98a0; font-size: 13px; }

@media (max-width: 1180px) {
  .nav-logo { min-width: 190px; }
  .nav-logo span { display: none; }
  .nav-links { gap: 16px; }
  .partner-banner { grid-template-columns: 1fr; }
  .hero-redesign::before { background: linear-gradient(90deg, rgba(255,255,255,0.98) 0%, rgba(255,255,255,0.88) 38%, rgba(255,255,255,0.22) 70%); }
  .service-strip { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(3, 1fr); }
  .products-grid.products-grid-single { grid-template-columns: minmax(0, 520px); }
  .capability-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .capability-grid article { border-bottom: 1px solid var(--color-border); }
  .capability-grid article:nth-child(2) { border-right: 0; }
  .capability-grid article:nth-child(3) { padding-left: 0; }
  .capability-grid article:nth-child(n+3) { border-bottom: 0; }
}

@media (max-width: 980px) {
  .nav-phone { display: none; }
  .brand-showcase { grid-template-columns: repeat(2, 1fr); }
  .brand-kanghua { grid-column: 1 / -1; }
}

@media (max-width: 767px) {
  .container { width: min(100% - 32px, var(--max-width)); }
  .section { padding: 46px 0; }
  .section-heading h2 { font-size: 28px; }
  .navbar .container { width: 100%; padding: 0 16px; }
  .nav-inner { height: 64px; }
  .nav-logo { min-width: 0; }
  .nav-logo img { width: 138px; height: 56px; }
  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    padding: 14px 16px 18px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    box-shadow: var(--shadow-soft);
    max-height: calc(100dvh - 64px);
    overflow-y: auto;
  }
  .nav-links.open { display: flex; }
  .nav-links > a, .nav-parent { display: block; padding: 12px 0; }
  .nav-links > a.active::after, .nav-item.active .nav-parent::after { bottom: 6px; width: 34px; right: auto; }
  .nav-item { display: block; width: 100%; }
  .nav-item-line { width: 100%; justify-content: space-between; }
  .nav-parent { flex: 1; padding-right: 0; }
  .nav-parent::before { display: none; }
  .nav-submenu-toggle {
    position: relative;
    display: block;
    width: 42px;
    height: 42px;
    flex: 0 0 auto;
  }
  .nav-submenu-toggle::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 7px;
    height: 7px;
    border-right: 1.5px solid var(--color-text-secondary);
    border-bottom: 1.5px solid var(--color-text-secondary);
    transform: translate(-50%, -65%) rotate(45deg);
    transition: transform var(--transition);
  }
  .nav-item.open .nav-submenu-toggle::before { transform: translate(-50%, -20%) rotate(225deg); }
  .nav-dropdown, .nav-item:hover .nav-dropdown, .nav-item:focus-within .nav-dropdown {
    position: static;
    display: none;
    width: 100%;
    padding: 4px 0 8px 14px;
    visibility: hidden;
    opacity: 1;
    transform: none;
    border: 0;
    box-shadow: none;
    background: #f7fbfc;
  }
  .nav-item.open .nav-dropdown { display: block; visibility: visible; }
  .nav-dropdown a { padding: 10px 12px; }
  .nav-phone { display: none; }
  .hamburger { display: flex; }
  .hero { margin-top: 64px; }
  .hero-redesign { min-height: 560px; }
  .hero-redesign::before { background: linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(255,255,255,0.94) 43%, rgba(255,255,255,0.22) 72%, rgba(255,255,255,0.02) 100%); }
  .hero-redesign-inner { min-height: 560px; }
  .hero-copy { max-width: 360px; padding-top: 46px; padding-bottom: 280px; }
  .hero-copy h1 { font-size: 38px; }
  .hero-copy p { font-size: 16px; }
  .hero-poster img { object-position: 66% center; }
  .poster-actions { grid-template-columns: 1fr; }
  .brand-showcase, .service-strip, .contact-band-inner, .footer-grid, .products-grid, .certs-grid, .service-grid, .advantages-grid, .news-grid, .contact-page-grid, .about-hero-row, .detail-gallery { grid-template-columns: 1fr; }
  .brand-kanghua { grid-column: auto; }
  .brand-tile { min-height: 480px; padding: 30px 24px 0; }
  .brand-product-photo { height: 60%; }
  .partner-copy { padding: 28px; }
  .partner-copy h2, .contact-band h2 { font-size: 27px; }
  .partner-copy img { width: 210px; }
  .partner-visual { min-height: 245px; }
  .handshake-card { right: 24px; left: 24px; width: auto; }
  .service-strip article { align-items: flex-start; }
  .contact-band-inner { min-height: auto; padding: 34px 0; gap: 24px; }
  .contact-band-item { padding-left: 0; border-left: 0; border-top: 1px dashed rgba(255,255,255,0.32); padding-top: 20px; }
  .page-header, .about-hero { margin-top: 64px; }
  .page-header { padding: 48px 0; }
  .inner-hero { margin-top: 64px; }
  .inner-hero-grid { min-height: auto; grid-template-columns: 1fr; gap: 0; }
  .inner-hero-copy { padding: 44px 0 34px; }
  .inner-hero-copy h1 { font-size: 36px; }
  .inner-hero-media { min-height: 240px; margin: 0 -16px; }
  .inner-hero-media::before { inset: 0 0 auto; width: auto; height: 26%; background: linear-gradient(180deg, #edf7f8, transparent); }
  .inner-hero-media img { object-position: 66% center; }
  .company-facts { gap: 14px; }
  .company-facts span { min-width: calc(50% - 14px); }
  .company-profile-section, .business-layout-section, .contact-main-section { padding: 52px 0; }
  .company-profile-grid { grid-template-columns: 1fr; gap: 34px; }
  .company-profile-grid > div:first-child { position: static; }
  .company-profile-grid h2 { font-size: 28px; }
  .company-principles { grid-template-columns: 1fr; }
  .company-principles article:last-child { grid-column: auto; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-grid article, .capability-grid article:first-child, .capability-grid article:nth-child(3) { min-height: 0; padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--color-border); }
  .capability-grid article:last-child { border-bottom: 0; }
  .business-layout-list article { grid-template-columns: 120px 1fr; gap: 18px; }
  .business-layout-list img { width: 110px; }
  .business-layout-list a { grid-column: 2; }
  .products-layout { grid-template-columns: 1fr; gap: 28px; }
  .sidebar { position: static; }
  .products-header { align-items: flex-start; flex-direction: column; gap: 6px; }
  .product-category-summary { grid-template-columns: 1fr; gap: 6px; }
  .products-grid.products-grid-single { grid-template-columns: 1fr; }
  .contact-main-section .contact-page-grid { grid-template-columns: 1fr; gap: 44px; }
  .contact-form-wrap { padding: 24px; }
  .news-list-item { grid-template-columns: 1fr; }
}

@media (max-width: 460px) {
  .hero-copy h1 { font-size: 32px; }
  .hero-redesign { min-height: 590px; }
  .hero-redesign-inner { min-height: 590px; }
  .hero-copy { padding-bottom: 305px; }
  .poster-matrix { border-radius: 10px; }
  .brand-product { left: 20px; right: 20px; }
  .skincare-pack .box { width: 126px; }
}