:root {
  --peach-50: #fff5f8;
  --peach-100: #ffe4ec;
  --peach-200: #ffc9d9;
  --peach-300: #ffa3bd;
  --peach-400: #f4789c;
  --peach-500: #e8557a;
  --peach-600: #d13d63;
  --peach-700: #b02f52;
  --mint-100: #eaf6f1;
  --mint-300: #bfe3d2;
  --mint-500: #4caf7d;
  --mint-600: #3e9e6b;
  --ink-900: #1f2a26;
  --ink-700: #2e4b40;
  --ink-600: #3d5a4e;
  --ink-500: #5c7268;
  --ink-400: #7d8f86;
  --ink-300: #a8b6ae;
  --line: #e6ece9;
  --line-strong: #d3ddd8;
  --bg: #ffffff;
  --bg-soft: #f7faf8;
  --bg-soft-2: #f2f7f4;
  --card: #ffffff;
  --card-glass: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.55);
  --shadow-sm: 0 2px 8px rgba(31, 42, 38, 0.06);
  --shadow-md: 0 10px 30px rgba(31, 42, 38, 0.09);
  --shadow-lg: 0 22px 60px rgba(31, 42, 38, 0.14);
  --shadow-peach: 0 12px 32px rgba(232, 85, 122, 0.28);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;
  --grad-hero: linear-gradient(135deg, #ffe9f0 0%, #fdf3f6 38%, #eaf6f1 100%);
  --grad-peach: linear-gradient(135deg, #ff9fb9 0%, #e8557a 100%);
  --grad-mint: linear-gradient(135deg, #7fc8a9 0%, #3e9e6b 100%);
  --grad-brand: linear-gradient(120deg, #e8557a 0%, #f4789c 45%, #7fc8a9 100%);
  --header-h: 72px;
  --container: 1200px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

html[data-theme="dark"] {
  --peach-50: #2a1c22;
  --peach-100: #3a2530;
  --peach-200: #4d2f3d;
  --peach-300: #7a4257;
  --peach-400: #f4789c;
  --peach-500: #ff7f9f;
  --peach-600: #ff9db6;
  --peach-700: #ffc0d0;
  --mint-100: #16241f;
  --mint-300: #2c4a3e;
  --mint-500: #6fd3a3;
  --mint-600: #8ee0b8;
  --ink-900: #eef5f1;
  --ink-700: #dbe8e2;
  --ink-600: #c3d5cd;
  --ink-500: #9fb4ab;
  --ink-400: #7f948b;
  --ink-300: #61746c;
  --line: #26332e;
  --line-strong: #33443d;
  --bg: #0f1614;
  --bg-soft: #131c19;
  --bg-soft-2: #17211d;
  --card: #17201d;
  --card-glass: rgba(23, 32, 29, 0.68);
  --glass-border: rgba(255, 255, 255, 0.08);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 22px 60px rgba(0, 0, 0, 0.55);
  --shadow-peach: 0 12px 32px rgba(232, 85, 122, 0.22);
  --grad-hero: linear-gradient(135deg, #1c1418 0%, #131c19 55%, #10201b 100%);
  --grad-brand: linear-gradient(120deg, #ff7f9f 0%, #e8557a 45%, #6fd3a3 100%);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
}

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

a {
  color: var(--peach-600);
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

a:hover {
  color: var(--peach-500);
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.6em;
  color: var(--ink-900);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.75rem, 2.6vw + 1rem, 2.9rem);
  line-height: 1.22;
}

h2 {
  font-size: clamp(1.4rem, 1.6vw + 0.9rem, 2.1rem);
}

h3 {
  font-size: clamp(1.12rem, 0.8vw + 0.95rem, 1.35rem);
}

h4 {
  font-size: 1rem;
  color: var(--peach-600);
  margin-top: 1.1em;
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  margin: 0 0 1em;
  padding-left: 1.35em;
}

li {
  margin-bottom: 0.45em;
}

strong {
  color: var(--ink-900);
  font-weight: 600;
}

:focus-visible {
  outline: 3px solid var(--peach-400);
  outline-offset: 2px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 9999;
  padding: 12px 22px;
  background: var(--peach-500);
  color: #fff;
  border-radius: var(--radius-pill);
  font-weight: 600;
  box-shadow: var(--shadow-peach);
  transition: top 0.3s var(--ease);
}

.skip-link:focus {
  top: 16px;
  color: #fff;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--card-glass);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.35s var(--ease), border-color 0.35s var(--ease),
    background-color 0.35s var(--ease);
}

.site-header.is-stuck {
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}

.brand > a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  transition: transform 0.4s var(--ease-out);
}

.brand > a:hover .brand-logo {
  transform: rotate(-8deg) scale(1.06);
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.brand-slogan {
  font-size: 0.72rem;
  color: var(--ink-400);
  letter-spacing: 0.06em;
  padding-left: 2px;
}

.main-nav {
  margin-left: auto;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.main-nav li {
  margin: 0;
}

.main-nav a {
  display: inline-block;
  padding: 8px 12px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-600);
  border-radius: var(--radius-pill);
  position: relative;
  transition: color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-peach);
  transform: translateX(-50%);
  transition: width 0.3s var(--ease);
}

.main-nav a:hover {
  color: var(--peach-600);
  background: var(--peach-50);
}

.main-nav a:hover::after {
  width: 55%;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.site-search {
  display: flex;
  align-items: center;
  background: var(--bg-soft-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  padding: 4px 4px 4px 14px;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease),
    background-color 0.3s var(--ease);
}

.site-search:focus-within {
  border-color: var(--peach-300);
  background: var(--card);
  box-shadow: 0 0 0 4px rgba(232, 85, 122, 0.12);
}

.site-search input {
  width: 168px;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 0.88rem;
  color: var(--ink-700);
  padding: 6px 0;
  outline: none;
}

.site-search input::placeholder {
  color: var(--ink-400);
}

.site-search button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  background: var(--grad-peach);
  color: #fff;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.site-search button:hover {
  transform: scale(1.08);
  box-shadow: var(--shadow-peach);
}

.theme-toggle,
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--card);
  color: var(--ink-600);
  cursor: pointer;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease),
    transform 0.25s var(--ease), background-color 0.25s var(--ease);
}

.theme-toggle:hover,
.menu-toggle:hover {
  color: var(--peach-500);
  border-color: var(--peach-300);
  transform: translateY(-2px);
}

.theme-toggle svg {
  transition: transform 0.5s var(--ease-out);
}

.theme-toggle[aria-pressed="true"] svg {
  transform: rotate(-25deg);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-menu {
  border-top: 1px solid var(--line);
  background: var(--card-glass);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  padding: 8px 16px 18px;
  animation: menuDrop 0.32s var(--ease-out);
}

.mobile-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.mobile-menu a {
  display: block;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  color: var(--ink-600);
  font-weight: 500;
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease);
}

.mobile-menu a:hover {
  background: var(--peach-50);
  color: var(--peach-600);
}

@keyframes menuDrop {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============ Breadcrumb ============ */
.breadcrumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px 0;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.84rem;
  color: var(--ink-400);
}

.breadcrumb li {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--ink-300);
}

.breadcrumb a {
  color: var(--ink-500);
}

.breadcrumb a:hover {
  color: var(--peach-600);
}

/* ============ Hero ============ */
.hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px 24px 56px;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -40px -10vw 20px -10vw;
  background: var(--grad-hero);
  border-radius: 0 0 48px 48px;
  z-index: -1;
}

.hero-slider {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--card-glass);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
}

.slide {
  display: none;
  grid-template-rows: auto 1fr;
  animation: slideFade 0.6s var(--ease-out);
}

.slide.is-active {
  display: grid;
}

@keyframes slideFade {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.99);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.slide-media {
  position: relative;
  overflow: hidden;
}

.slide-media svg {
  width: 100%;
  height: auto;
  transition: transform 0.8s var(--ease-out);
}

.slide:hover .slide-media svg {
  transform: scale(1.03);
}

.slide-content {
  padding: 22px 28px 30px;
}

.slide-content h2 {
  margin-bottom: 0.35em;
  font-size: clamp(1.15rem, 1vw + 0.9rem, 1.5rem);
}

.slide-content p {
  color: var(--ink-500);
  font-size: 0.94rem;
  margin-bottom: 1.1em;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--grad-peach);
  color: #fff;
  font: inherit;
  font-size: 0.94rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-peach);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease),
    filter 0.28s var(--ease);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-3px);
  filter: brightness(1.04);
  box-shadow: 0 18px 40px rgba(232, 85, 122, 0.38);
}

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

.slider-controls {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  pointer-events: none;
}

.slider-prev,
.slider-next {
  pointer-events: auto;
  width: 34px;
  height: 34px;
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  background: var(--card-glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--ink-700);
  font-size: 0.8rem;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background-color 0.25s var(--ease),
    color 0.25s var(--ease);
}

.slider-prev:hover,
.slider-next:hover {
  background: var(--peach-500);
  color: #fff;
  transform: scale(1.1);
}

.slider-dots {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.slider-dots button {
  width: 9px;
  height: 9px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--ink-300);
  cursor: pointer;
  transition: width 0.3s var(--ease), background-color 0.3s var(--ease);
}

.slider-dots button.is-active {
  width: 26px;
  background: var(--peach-500);
}

.hero-intro h1 {
  margin-bottom: 0.5em;
}

.hero-intro h1::after {
  content: "";
  display: block;
  width: 76px;
  height: 5px;
  margin-top: 16px;
  border-radius: 4px;
  background: var(--grad-brand);
}

.hero-lead {
  margin-top: 1em;
  color: var(--ink-500);
  font-size: 1rem;
  line-height: 1.85;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 28px;
}

.stat {
  padding: 16px 10px;
  text-align: center;
  border-radius: var(--radius-md);
  background: var(--card-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-num {
  display: block;
  font-size: clamp(1.25rem, 1vw + 0.9rem, 1.7rem);
  font-weight: 800;
  line-height: 1.2;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  display: block;
  margin-top: 4px;
  font-size: 0.78rem;
  color: var(--ink-400);
  letter-spacing: 0.02em;
}

/* ============ Section base ============ */
.section {
  padding: 68px 0;
}

.section:nth-of-type(even) {
  background: var(--bg-soft);
}

.section-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section-inner > h2 {
  position: relative;
  padding-bottom: 14px;
  margin-bottom: 1.2em;
}

.section-inner > h2::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 4px;
  border-radius: 4px;
  background: var(--grad-peach);
}

.section-lead {
  max-width: 760px;
  margin: -0.4em 0 2em;
  color: var(--ink-500);
  font-size: 0.98rem;
}

.sub-title {
  margin-top: 2.4em;
  font-size: 1.2rem;
}

/* ============ About ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 32px;
  align-items: start;
}

.about-text {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 30px 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line);
}

.about-text h3 {
  margin-top: 1.4em;
  padding-left: 14px;
  border-left: 4px solid var(--peach-400);
  border-radius: 2px;
}

.about-text h3:first-child {
  margin-top: 0;
}

.about-text p {
  color: var(--ink-500);
  font-size: 0.95rem;
}

.about-aside {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 26px 26px 30px;
  background: var(--card-glass);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.about-aside::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 85, 122, 0.22), transparent 70%);
  pointer-events: none;
}

.about-aside h3 {
  font-size: 1.05rem;
}

.about-aside p {
  color: var(--ink-500);
  font-size: 0.9rem;
}

.info-list {
  list-style: none;
  margin: 0 0 1.4em;
  padding: 0;
  display: grid;
  gap: 10px;
}

.info-list li {
  margin: 0;
  padding: 10px 14px;
  font-size: 0.9rem;
  color: var(--ink-500);
  background: var(--bg-soft-2);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--mint-300);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.info-list li:hover {
  transform: translateX(4px);
  border-left-color: var(--peach-400);
}

.info-list strong {
  color: var(--ink-900);
}

.info-list a {
  color: var(--peach-600);
}

/* ============ Products ============ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}

.product-card {
  position: relative;
  padding: 28px 26px;
  border-radius: var(--radius-lg);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
    border-color 0.35s var(--ease);
}

.product-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(140deg, rgba(232, 85, 122, 0.07), transparent 55%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--peach-200);
}

.product-card:hover::after {
  opacity: 1;
}

.product-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 16px;
  padding: 6px;
  border-radius: var(--radius-md);
  background: var(--bg-soft-2);
  transition: transform 0.4s var(--ease-out);
}

.product-card:hover .product-icon {
  transform: translateY(-3px) scale(1.06) rotate(-4deg);
}

.product-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5em;
}

.product-card p {
  font-size: 0.9rem;
  color: var(--ink-500);
  margin-bottom: 0.7em;
}

.product-card h4 {
  margin: 0.9em 0 0.3em;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ============ Solutions ============ */
.solution-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.solution-item {
  position: relative;
  padding: 26px 26px 26px 30px;
  border-radius: var(--radius-md);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform 0.32s var(--ease), box-shadow 0.32s var(--ease);
}

.solution-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 4px;
  border-radius: 4px;
  background: var(--grad-mint);
  transition: top 0.32s var(--ease), bottom 0.32s var(--ease);
}

.solution-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.solution-item:hover::before {
  top: 12px;
  bottom: 12px;
  background: var(--grad-peach);
}

.solution-item h3 {
  font-size: 1.06rem;
}

.solution-item p {
  margin-bottom: 0;
  font-size: 0.9rem;
  color: var(--ink-500);
}

/* ============ Applications ============ */
.application-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.application-item {
  padding: 24px 22px;
  border-radius: var(--radius-md);
  background: var(--card-glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    background-color 0.3s var(--ease);
}

.application-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  background: var(--card);
}

.application-item h3 {
  font-size: 1.02rem;
  color: var(--peach-600);
}

.application-item p {
  margin-bottom: 0;
  font-size: 0.88rem;
  color: var(--ink-500);
}

/* ============ Cases & Testimonials ============ */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.case-card {
  padding: 26px;
  border-radius: var(--radius-lg);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform 0.32s var(--ease), box-shadow 0.32s var(--ease);
}

.case-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.case-card h3 {
  font-size: 1.02rem;
  color: var(--ink-900);
}

.case-card p {
  margin-bottom: 0;
  font-size: 0.9rem;
  color: var(--ink-500);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.testimonial {
  margin: 0;
  padding: 26px 24px 20px;
  border-radius: var(--radius-md);
  background: var(--card-glass);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform 0.32s var(--ease), box-shadow 0.32s var(--ease);
}

.testimonial::before {
  content: "\201C";
  position: absolute;
  top: 6px;
  left: 16px;
  font-size: 3rem;
  line-height: 1;
  color: var(--peach-200);
  font-family: Georgia, serif;
}

.testimonial:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.testimonial p {
  position: relative;
  font-size: 0.92rem;
  color: var(--ink-600);
  margin-bottom: 0.8em;
}

.testimonial footer {
  font-size: 0.82rem;
  color: var(--ink-400);
  font-style: normal;
}

/* ============ News ============ */
.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--card);
}

.news-list li {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 0;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.news-list li:last-child {
  border-bottom: 0;
}

.news-list li:hover {
  background: var(--peach-50);
  padding-left: 28px;
}

.news-list time {
  flex-shrink: 0;
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  color: var(--mint-600);
  font-weight: 600;
}

.news-list a {
  color: var(--ink-700);
  font-size: 0.94rem;
}

.news-list a:hover {
  color: var(--peach-600);
}

/* ============ Articles ============ */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 20px;
}

.article-card {
  display: flex;
  flex-direction: column;
  padding: 26px 24px;
  border-radius: var(--radius-lg);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform 0.32s var(--ease), box-shadow 0.32s var(--ease),
    border-color 0.32s var(--ease);
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--peach-200);
}

.article-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5em;
}

.article-card h3 a {
  color: var(--ink-900);
}

.article-card h3 a:hover {
  color: var(--peach-600);
}

.article-meta {
  font-size: 0.78rem;
  color: var(--ink-400);
  margin-bottom: 0.7em;
  font-variant-numeric: tabular-nums;
}

.article-summary {
  font-size: 0.89rem;
  color: var(--ink-500);
  flex-grow: 1;
}

.read-more {
  align-self: flex-start;
  margin-top: 0.4em;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--peach-600);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.read-more::after {
  content: "\2192";
  transition: transform 0.25s var(--ease);
}

.read-more:hover::after {
  transform: translateX(4px);
}

/* ============ HowTo ============ */
.howto-block {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 32px 34px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.howto-block h3 {
  margin-top: 1.6em;
  font-size: 1.05rem;
  color: var(--peach-600);
  display: flex;
  align-items: center;
  gap: 10px;
}

.howto-block h3:first-child {
  margin-top: 0;
}

.howto-block h3::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--grad-peach);
  flex-shrink: 0;
}

.howto-block p,
.howto-block li {
  font-size: 0.93rem;
  color: var(--ink-500);
}

.howto-block ol {
  counter-reset: howto;
  list-style: none;
  padding-left: 0;
}

.howto-block ol li {
  position: relative;
  padding-left: 42px;
  margin-bottom: 0.8em;
}

.howto-block ol li::before {
  counter-increment: howto;
  content: counter(howto);
  position: absolute;
  left: 0;
  top: 1px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--peach-100);
  color: var(--peach-600);
  font-size: 0.82rem;
  font-weight: 700;
}

/* ============ FAQ ============ */
.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  border-radius: var(--radius-md);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.faq-item[open] {
  border-color: var(--peach-200);
  box-shadow: var(--shadow-md);
}

.faq-item summary {
  position: relative;
  padding: 18px 56px 18px 22px;
  font-weight: 600;
  font-size: 0.96rem;
  color: var(--ink-900);
  cursor: pointer;
  list-style: none;
  transition: color 0.25s var(--ease), background-color 0.25s var(--ease);
}

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

.faq-item summary::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--peach-500);
  border-bottom: 2px solid var(--peach-500);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.3s var(--ease);
}

.faq-item[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.faq-item summary:hover {
  background: var(--peach-50);
  color: var(--peach-600);
}

.faq-answer {
  padding: 0 22px 20px;
  animation: faqOpen 0.35s var(--ease-out);
}

.faq-answer p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-500);
}

@keyframes faqOpen {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============ Knowledge ============ */
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.knowledge-grid article {
  padding: 26px 24px;
  border-radius: var(--radius-md);
  background: var(--card-glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.knowledge-grid article:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.knowledge-grid h3 {
  font-size: 1rem;
  color: var(--mint-600);
}

.knowledge-grid p {
  margin-bottom: 0;
  font-size: 0.89rem;
  color: var(--ink-500);
}

/* ============ Contact ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 30px;
  align-items: start;
}

.contact-info {
  padding: 30px 28px;
  border-radius: var(--radius-lg);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.contact-info h3 {
  font-size: 1.05rem;
}

.contact-info p {
  font-size: 0.9rem;
  color: var(--ink-500);
}

.contact-form-wrap {
  padding: 30px 28px;
  border-radius: var(--radius-lg);
  background: var(--card-glass);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
}

.contact-form-wrap h3 {
  font-size: 1.05rem;
}

.form-row {
  margin-bottom: 16px;
}

.form-row label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink-600);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 11px 14px;
  font: inherit;
  font-size: 0.92rem;
  color: var(--ink-700);
  background: var(--bg-soft-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background-color 0.25s var(--ease);
}

.form-row textarea {
  resize: vertical;
  min-height: 110px;
}

.form-row input::placeholder,
.form-row textarea::placeholder {
  color: var(--ink-300);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--peach-300);
  background: var(--card);
  box-shadow: 0 0 0 4px rgba(232, 85, 122, 0.12);
}

.contact-form .btn-primary {
  width: 100%;
  margin-top: 4px;
}

/* ============ Sitemap ============ */
.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.sitemap-grid h3 {
  font-size: 1rem;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.sitemap-grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.sitemap-grid li {
  margin: 0;
}

.sitemap-grid a {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--ink-500);
  padding: 3px 0;
  transition: color 0.25s var(--ease), transform 0.25s var(--ease);
}

.sitemap-grid a:hover {
  color: var(--peach-600);
  transform: translateX(4px);
}

/* ============ Footer ============ */
.site-footer {
  margin-top: 0;
  background: linear-gradient(180deg, var(--bg-soft-2) 0%, var(--bg-soft) 100%);
  border-top: 1px solid var(--line);
  color: var(--ink-500);
}

html[data-theme="dark"] .site-footer {
  background: linear-gradient(180deg, #0c1210 0%, #0f1614 100%);
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 24px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr 1.6fr;
  gap: 36px;
}

.footer-brand h2 {
  font-size: 1.5rem;
  margin-bottom: 0.3em;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.footer-brand p {
  font-size: 0.88rem;
  margin-bottom: 0.6em;
}

.footer-links h3,
.footer-legal h3 {
  font-size: 0.95rem;
  margin-bottom: 0.7em;
  color: var(--ink-900);
}

.footer-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.footer-links li {
  margin: 0;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--ink-500);
}

.footer-links a:hover {
  color: var(--peach-600);
}

.footer-legal p {
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--ink-400);
  margin-bottom: 0.9em;
}

.footer-legal h3 {
  margin-top: 1em;
  font-size: 0.88rem;
}

.footer-legal h3:first-child {
  margin-top: 0;
}

.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 24px 26px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--ink-400);
}

.footer-bottom p {
  margin: 0;
}

/* ============ Back to top ============ */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 28px;
  z-index: 900;
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 50%;
  background: var(--grad-peach);
  color: #fff;
  cursor: pointer;
  box-shadow: var(--shadow-peach);
  opacity: 0;
  transform: translateY(16px) scale(0.9);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease-out),
    box-shadow 0.3s var(--ease);
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.back-to-top:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 18px 40px rgba(232, 85, 122, 0.42);
}

/* ============ Reveal animation ============ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  will-change: opacity, transform;
}

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

/* ============ Responsive ============ */
@media (max-width: 1080px) {
  .header-inner {
    gap: 16px;
  }

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .header-tools {
    margin-left: auto;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-legal {
    grid-column: 1 / -1;
  }
}

@media (max-width: 820px) {
  :root {
    --header-h: 64px;
  }

  .site-search input {
    width: 120px;
  }

  .brand-slogan {
    display: none;
  }

  .section {
    padding: 52px 0;
  }

  .hero {
    padding: 20px 20px 44px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-text,
  .howto-block,
  .contact-info,
  .contact-form-wrap {
    padding: 24px 22px;
  }

  .slide-content {
    padding: 18px 22px 26px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 44px 20px 32px;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .header-inner {
    padding: 0 16px;
    gap: 10px;
  }

  .brand-logo {
    width: 34px;
    height: 34px;
  }

  .brand-name {
    font-size: 1.15rem;
  }

  .site-search {
    display: none;
  }

  .breadcrumb {
    padding: 12px 16px 0;
  }

  .section-inner {
    padding: 0 16px;
  }

  .hero {
    padding: 16px 16px 36px;
  }

  .hero::before {
    inset: -20px -20vw 10px -20vw;
    border-radius: 0 0 32px 32px;
  }

  .hero-stats {
    gap: 10px;
    margin-top: 22px;
  }

  .stat {
    padding: 12px 8px;
  }

  .slider-controls {
    bottom: 10px;
    gap: 10px;
  }

  .slider-prev,
  .slider-next {
    width: 30px;
    height: 30px;
  }

  .product-grid,
  .solution-list,
  .case-grid,
  .article-grid,
  .knowledge-grid,
  .application-grid,
  .testimonial-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .news-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 14px 16px;
  }

  .news-list li:hover {
    padding-left: 20px;
  }

  .faq-item summary {
    padding: 15px 48px 15px 18px;
    font-size: 0.92rem;
  }

  .faq-item summary::after {
    right: 18px;
  }

  .faq-answer {
    padding: 0 18px 16px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 16px 24px;
  }

  .back-to-top {
    right: 16px;
    bottom: 18px;
    width: 44px;
    height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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

@media print {
  .site-header,
  .mobile-menu,
  .slider-controls,
  .back-to-top,
  .contact-form-wrap,
  .site-search,
  .theme-toggle,
  .menu-toggle {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .section {
    padding: 20px 0;
    page-break-inside: avoid;
  }
}