:root {
  color-scheme: light;
  --ink: #1d1d1f;
  --muted: #63686b;
  --line: #d5e6dd;
  --paper: #ffffff;
  --soft: #eef7f2;
  --blue: #38a873;
  --teal: #42bfa8;
  --green: #4fbd82;
  --gold: #f6c343;
  --wash: #e3f5ec;
  --shadow: 0 16px 38px rgba(38, 97, 70, 0.15);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(155deg, rgba(218, 244, 237, 0.82) 0%, rgba(255, 255, 255, 0.96) 34%, rgba(240, 242, 250, 0.94) 72%, rgba(255, 239, 234, 0.66) 100%);
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(213, 230, 221, 0.92);
  backdrop-filter: blur(22px);
  animation: headerDrop 520ms ease both;
}
.brand { display: inline-flex; align-items: center; min-width: 170px; padding: 6px 0; }
.brand-logo {
  width: 156px;
  height: 50px;
  display: block;
  object-fit: contain;
  object-position: left center;
  flex: 0 0 auto;
  transition: transform 220ms ease, filter 220ms ease;
}
.brand:hover .brand-logo { transform: translateY(-1px) scale(1.02); filter: drop-shadow(0 8px 14px rgba(38, 97, 70, 0.16)); }
.brand strong, .brand small { display: block; line-height: 1.1; }
.brand small { color: var(--muted); font-size: 12px; margin-top: 3px; }
.site-nav { display: flex; align-items: center; gap: 8px; }
.site-nav a {
  padding: 10px 14px;
  border-radius: 7px;
  color: #5f6365;
  font-size: 15px;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}
.site-nav a:hover, .site-nav a.active { background: var(--wash); color: #27875b; transform: translateY(-1px); }
.site-nav .nav-cta { background: var(--blue); color: white; margin-left: 6px; }
.site-nav .nav-cta:hover, .site-nav .nav-cta.active { background: #27875b; color: white; }
.nav-toggle { display: none; border: 0; background: transparent; font-size: 24px; }

.hero {
  position: relative;
  min-height: calc(100vh - 84px);
  max-height: 860px;
  overflow: hidden;
  display: flex;
  align-items: center;
}
.hero img { position: absolute; z-index: 0; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; animation: heroZoom 16s ease-in-out infinite alternate; }
.hero-overlay { position: absolute; z-index: 1; inset: 0; background: linear-gradient(90deg, rgba(18, 31, 25, 0.82) 0%, rgba(29, 62, 47, 0.58) 42%, rgba(235, 250, 243, 0.14) 76%); }
.hero-content {
  position: relative;
  z-index: 2;
  width: min(720px, calc(100% - 40px));
  margin-left: clamp(20px, 7vw, 92px);
  padding: 70px 0 96px;
  color: white;
  animation: fadeRise 760ms ease 120ms both;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
  font-size: 13px;
}
.hero .eyebrow { color: #a2f1c9; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(42px, 6vw, 76px); line-height: 1.08; margin-bottom: 20px; letter-spacing: 0; }
h2 { font-size: clamp(30px, 4vw, 48px); line-height: 1.16; margin-bottom: 16px; letter-spacing: 0; }
h3 { font-size: 20px; line-height: 1.25; margin-bottom: 10px; letter-spacing: 0; }
.hero-lede { font-size: clamp(20px, 2.3vw, 28px); color: rgba(255, 255, 255, 0.88); margin-bottom: 24px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.hero-points span {
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  color: #f7fbff;
  animation: fadeRise 620ms ease both;
}
.hero-points span:nth-child(2) { animation-delay: 120ms; }
.hero-points span:nth-child(3) { animation-delay: 220ms; }
.hero-points span::before { content: "✓ "; color: #a2f1c9; font-weight: 900; }
.btn {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 7px;
  font-weight: 800;
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
}
.btn.primary { color: white; background: var(--blue); box-shadow: 0 12px 28px rgba(56, 168, 115, 0.3); }
.btn.ghost { color: white; border-color: rgba(255, 255, 255, 0.48); background: rgba(255, 255, 255, 0.1); }
.btn:hover { transform: translateY(-2px); }
.btn.primary:hover { box-shadow: 0 18px 36px rgba(56, 168, 115, 0.34); }
.btn::after {
  content: "";
  position: absolute;
  inset: -20% auto -20% -45%;
  width: 38%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.34), transparent);
  transform: skewX(-18deg);
  transition: left 480ms ease;
}
.btn:hover::after { left: 110%; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.auth-page { min-height: 100vh; }
.auth-shell { min-height: calc(100vh - 84px); display: grid; place-items: center; padding: 56px 20px; background: linear-gradient(135deg, rgba(238,247,242,.9), rgba(255,255,255,.96)); }
.auth-card { width: min(720px, 100%); padding: clamp(24px, 5vw, 48px); border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.96); box-shadow: var(--shadow); }
.auth-intro { max-width: 580px; margin-bottom: 26px; }
.auth-intro h1 { font-size: clamp(30px, 4vw, 48px); margin-bottom: 12px; }
.auth-intro p:last-child { color: var(--muted); font-size: 16px; }
.auth-tabs { display: flex; gap: 8px; border-bottom: 1px solid var(--line); margin-bottom: 24px; }
.auth-tab { border: 0; background: none; padding: 10px 18px; color: var(--muted); font-weight: 800; cursor: pointer; border-bottom: 3px solid transparent; }
.auth-tab.active { color: var(--blue); border-bottom-color: var(--blue); }
.auth-form { display: none; gap: 16px; }
.auth-form.active { display: grid; }
.auth-form label { display: grid; gap: 7px; color: #4f5658; font-weight: 700; font-size: 14px; }
.auth-form input, .auth-form textarea { width: 100%; border: 1px solid #cfe0d8; border-radius: 9px; padding: 12px 13px; background: #fbfefd; color: var(--ink); font: inherit; }
.auth-form input:focus, .auth-form textarea:focus { outline: 2px solid rgba(56,168,115,.22); border-color: var(--blue); }
.auth-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.captcha-row { display: flex; gap: 10px; }
.captcha-row input { flex: 1; }
.password-row { display: flex; gap: 0; border: 1px solid #cfe0d8; border-radius: 9px; background: #fbfefd; overflow: hidden; }
.password-row:focus-within { outline: 2px solid rgba(56,168,115,.22); border-color: var(--blue); }
.password-row input { flex: 1; min-width: 0; border: 0; border-radius: 0; background: transparent; outline: none; }
.password-toggle { width: 48px; flex: 0 0 48px; border: 0; border-left: 1px solid #cfe0d8; border-radius: 0; color: var(--blue); background: transparent; display: grid; place-items: center; cursor: pointer; }
.password-toggle svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.code-button { border: 1px solid var(--blue); border-radius: 8px; padding: 0 14px; color: var(--blue); background: white; font-weight: 800; white-space: nowrap; cursor: pointer; }
.captcha-image { width: 150px; height: 52px; object-fit: contain; border: 1px solid var(--line); border-radius: 7px; background: white; }
.auth-status { min-height: 24px; margin: 0; font-size: 14px; }
.auth-status.success { color: #238458; }
.auth-status.error { color: #c23b3b; }

.section { padding: clamp(64px, 8vw, 112px) clamp(20px, 5vw, 72px); background: rgba(255, 255, 255, 0.58); }
.section > * { max-width: 1180px; margin-left: auto; margin-right: auto; }
.alt { background: rgba(238, 247, 242, 0.92); }
.section-head { margin-bottom: 34px; }
.section-head p:not(.eyebrow) { max-width: 760px; color: var(--muted); font-size: 18px; }
.section-head.split { display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.text-link { color: #27875b; font-weight: 800; }
.intro-grid, .two-col, .contact-layout { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(28px, 5vw, 72px); align-items: start; }
.copy-block { color: #4f5658; font-size: 18px; }
.copy-block p { margin-bottom: 18px; }
.downloads { background: linear-gradient(135deg, #f4fbf7 0%, #edf7f2 100%); }
.download-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.download-card { padding: 28px; background: var(--paper); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
.download-card-head { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.download-card-head h3 { margin: 0; font-size: 24px; }
.download-card-head p { margin: 3px 0 0; color: var(--muted); }
.download-mark { display: grid; place-items: center; width: 58px; height: 58px; border-radius: 16px; color: white; font-weight: 900; font-size: 17px; }
.download-mark.student { background: linear-gradient(135deg, #38a873, #42bfa8); }
.download-mark.teacher { background: linear-gradient(135deg, #275b86, #42a7b8); }
.download-platforms { display: grid; gap: 10px; }
.download-platform { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid #dcebe4; border-radius: 12px; background: #fbfefd; }
.platform-badge { display: grid; place-items: center; min-width: 42px; height: 34px; padding: 0 7px; border-radius: 9px; background: var(--soft); color: var(--blue); font-size: 12px; font-weight: 900; }
.download-platform div { display: grid; gap: 1px; flex: 1; }
.download-platform b { font-size: 15px; }
.download-platform small { color: var(--muted); font-size: 12px; }
.download-status { color: var(--muted); font-size: 12px; white-space: nowrap; }
.download-note { margin: 24px auto 0; color: var(--muted); text-align: center; }
.download-note a { color: var(--blue); font-weight: 800; }
.stats-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.stats-panel div {
  min-height: 150px;
  padding: 24px 18px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}
.stats-panel div:hover { transform: translateY(-4px); border-color: #b9dfcb; box-shadow: 0 22px 46px rgba(38, 97, 70, 0.18); }
.stats-panel strong { display: block; color: var(--blue); font-size: 42px; line-height: 1; margin-bottom: 14px; }
.stats-panel span { color: var(--muted); font-weight: 700; }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.tag-row span { padding: 8px 13px; border-radius: 999px; background: var(--wash); color: #27875b; font-weight: 800; border: 1px solid #c5e8d6; }

.feature-grid, .scenario-grid, .hardware-grid, .detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.feature-grid.wide { grid-template-columns: repeat(5, 1fr); }
.feature-card, .scenario-card, .hardware-grid article, .detail-grid article, .contact-cards article {
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 14px 34px rgba(38, 97, 70, 0.11);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}
.feature-card:hover, .scenario-card:hover, .hardware-grid article:hover, .detail-grid article:hover, .contact-cards article:hover {
  transform: translateY(-5px);
  border-color: #b9dfcb;
  box-shadow: 0 22px 48px rgba(38, 97, 70, 0.16);
}
.feature-card span {
  display: inline-grid;
  place-items: center;
  min-width: 42px;
  height: 34px;
  padding: 0 10px;
  border-radius: 7px;
  margin-bottom: 20px;
  color: #27875b;
  background: var(--wash);
  border: 1px solid #c5e8d6;
  font-weight: 900;
  transition: transform 220ms ease, background 220ms ease;
}
.feature-card:hover span { transform: scale(1.06); background: #d8f3e6; }
.feature-card h3, .scenario-card h3, .hardware-grid h3, .detail-grid h3 { color: var(--blue); }
.feature-card p, .scenario-card p, .hardware-grid p, .detail-grid p { color: var(--muted); margin-bottom: 0; }
.scenario-card { min-height: 220px; display: flex; flex-direction: column; }
.scenario-card b { margin-top: auto; color: #27875b; }

.interface-showcase {
  display: grid;
  grid-template-columns: 0.7fr 1.35fr 0.95fr;
  gap: 22px;
  align-items: stretch;
}
.phone-mock, .dashboard-mock, .assistant-mock {
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 24px;
}
.phone-mock { max-width: 320px; justify-self: center; width: 100%; }
.phone-bar { width: 80px; height: 6px; background: #c5e8d6; border-radius: 999px; margin: 0 auto 28px; }
.phone-mock ol { padding-left: 24px; margin-bottom: 0; }
.phone-mock li { margin: 12px 0; color: var(--muted); }
.dashboard-mock { min-height: 320px; }
.mock-top { height: 42px; border-radius: 7px; background: linear-gradient(90deg, var(--blue), var(--teal)); margin-bottom: 20px; opacity: 0.92; }
.mock-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
.mock-grid span { height: 70px; border-radius: 7px; background: #e1f3e8; }
.mock-chart { height: 150px; border-radius: 7px; background: linear-gradient(135deg, #d9f5e7, #fff1bd); position: relative; overflow: hidden; }
.mock-chart::after { content: ""; position: absolute; inset: 70px 24px 24px; border-top: 6px solid var(--gold); border-right: 6px solid var(--teal); transform: skewY(-8deg); }
.assistant-mock { display: flex; flex-direction: column; justify-content: center; background: linear-gradient(135deg, #26332d, #4fb984); color: white; }
.assistant-mock p { color: rgba(255, 255, 255, 0.78); }

.app-showcase {
  display: grid;
  grid-template-columns: 0.9fr 1fr 0.9fr;
  gap: clamp(18px, 3vw, 34px);
  align-items: center;
}
.app-phone {
  margin: 0;
  padding: 12px;
  border: 1px solid #c5e8d6;
  border-radius: 8px;
  background: white;
  box-shadow: 0 18px 44px rgba(38, 97, 70, 0.14);
  transition: transform 240ms ease, box-shadow 240ms ease, border-color 240ms ease;
}
.app-phone.featured { transform: translateY(-16px); box-shadow: 0 24px 58px rgba(38, 97, 70, 0.18); }
.app-phone:hover { transform: translateY(-8px); border-color: #aedaC4; box-shadow: 0 28px 64px rgba(38, 97, 70, 0.2); }
.app-phone.featured:hover { transform: translateY(-24px); }
.app-phone img {
  width: 100%;
  aspect-ratio: 390 / 844;
  object-fit: cover;
  object-position: top;
  border-radius: 8px;
  border: 1px solid #e4eee9;
  background: #f2f4f3;
  transition: transform 320ms ease;
}
.app-phone:hover img { transform: scale(1.015); }
.app-phone figcaption {
  display: grid;
  gap: 3px;
  padding: 14px 6px 4px;
}
.app-phone figcaption b { color: var(--blue); font-size: 18px; }
.app-phone figcaption span { color: var(--muted); font-size: 14px; }

.product-experience { overflow: hidden; }
.experience-intro { max-width: 760px; margin-bottom: 42px; }
.experience-intro h2 { margin-bottom: 14px; }
.experience-intro > p:last-child { max-width: 700px; line-height: 1.9; }
.experience-group { position: relative; }
.experience-group + .experience-group { margin-top: 68px; }
.experience-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid #d4e8df;
}
.experience-heading h3 { margin: 6px 0 0; font-size: 24px; color: #173d31; }
.experience-heading > p { margin: 0 0 3px; color: #6c8279; font-size: 14px; }
.experience-kicker { color: #319c72; font-size: 13px; font-weight: 900; letter-spacing: .08em; }
.screen-gallery {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  padding: 4px 2px 8px;
}
.screen-gallery figure {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 16px;
  background: transparent;
  overflow: visible;
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}
.screen-gallery figure:hover {
  transform: translateY(-5px);
}
.screen-gallery img {
  display: block;
  width: 100%;
  height: 338px;
  object-fit: contain;
  object-position: top;
  padding: 10px 10px 0;
  border: 1px solid #cfe7db;
  border-radius: 16px;
  background: linear-gradient(155deg, #f8fcfa 0%, #eef7f2 100%);
  box-shadow: 0 14px 28px rgba(38, 97, 70, .11), inset 0 0 0 5px rgba(255, 255, 255, .72);
  transition: transform 320ms ease, filter 220ms ease;
}
.screen-gallery figure:hover img { transform: scale(1.012); filter: saturate(1.03) contrast(1.01); box-shadow: 0 20px 38px rgba(38, 97, 70, .16), inset 0 0 0 5px rgba(255, 255, 255, .72); }
.screen-gallery figcaption { display: grid; gap: 4px; padding: 14px 4px 0; }
.screen-gallery figcaption b { color: #1f6f50; font-size: 16px; letter-spacing: .01em; }
.screen-gallery figcaption span { color: #81928b; font-size: 12px; }
.screen-gallery-primary img { border-color: #9bd5b8; }
.screen-gallery-secondary img { height: 318px; border-color: #d6e4de; background: linear-gradient(155deg, #fcfefd 0%, #f1f6f4 100%); }

.hardware-band { background: linear-gradient(135deg, #22302a, #315845); color: white; }
.hardware-band .eyebrow { color: #a2f1c9; }
.hardware-band .section-head p:not(.eyebrow) { color: rgba(255, 255, 255, 0.78); }
.hardware-band .equipment-link { color: #a2f1c9; display: inline-block; margin-top: 12px; }
.hardware-band .equipment-link:hover { color: #d5ffea; }
.hardware-grid article { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.14); box-shadow: none; }
.hardware-grid p { color: rgba(255, 255, 255, 0.75); }

.cta {
  padding: clamp(64px, 8vw, 96px) 20px;
  text-align: center;
  background: linear-gradient(135deg, #dff5ea, #fff3c7);
  border-top: 1px solid #c5e8d6;
  border-bottom: 1px solid #c5e8d6;
}
.cta h2, .cta p { max-width: 780px; margin-left: auto; margin-right: auto; }
.cta p { color: var(--muted); font-size: 18px; }

.page-hero {
  position: relative;
  overflow: hidden;
  padding: 88px clamp(20px, 5vw, 72px);
  background:
    radial-gradient(circle at 84% 18%, rgba(162, 241, 201, 0.36), transparent 28%),
    linear-gradient(135deg, #20352b 0%, #2c7f59 58%, #38a873 100%);
  color: white;
  isolation: isolate;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(115deg, transparent 0%, rgba(255, 255, 255, 0.16) 44%, transparent 58%);
  animation: sheenSlide 5.5s ease-in-out infinite;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.34);
}
.page-hero > * { max-width: 1180px; margin-left: auto; margin-right: auto; }
.page-hero p { color: rgba(255, 255, 255, 0.76); font-weight: 800; }
.page-hero h1 { margin-bottom: 0; }
.compact { min-height: 260px; display: flex; flex-direction: column; justify-content: center; }
.mode-table { display: grid; gap: 12px; }
.mode-table article {
  display: grid;
  grid-template-columns: 1fr 110px 2fr;
  gap: 18px;
  align-items: center;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: 0 12px 30px rgba(38, 97, 70, 0.08);
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}
.mode-table article:hover { transform: translateX(5px); border-color: #b9dfcb; box-shadow: 0 18px 38px rgba(38, 97, 70, 0.13); }
.mode-table span { justify-self: start; padding: 5px 10px; border-radius: 999px; background: var(--wash); color: #27875b; font-weight: 800; }
.mode-table p { margin: 0; color: var(--muted); }
.architecture {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.architecture div {
  min-height: 120px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 16px;
  border-radius: 8px;
  background: white;
  border: 1px solid var(--line);
  box-shadow: 0 12px 30px rgba(38, 97, 70, 0.08);
  font-weight: 900;
  color: var(--blue);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}
.architecture div:hover { transform: translateY(-5px); border-color: #b9dfcb; box-shadow: 0 20px 42px rgba(38, 97, 70, 0.14); }
.scenario-detail .lead { max-width: 760px; color: var(--muted); font-size: 18px; }
.timeline { display: grid; gap: 12px; }
.timeline article { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 18px; border: 1px solid var(--line); border-left: 4px solid var(--teal); background: white; border-radius: 0 8px 8px 0; box-shadow: 0 12px 30px rgba(38, 97, 70, 0.08); }
.timeline article { transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease; }
.timeline article:hover { transform: translateX(5px); border-color: #b9dfcb; box-shadow: 0 18px 38px rgba(38, 97, 70, 0.13); }
.timeline time { color: var(--blue); font-weight: 900; }
.timeline p { margin: 0; }

.contact-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 24px; }
.contact-cards p { margin-bottom: 6px; color: var(--muted); overflow-wrap: anywhere; }
.contact-form {
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 18px 44px rgba(38, 97, 70, 0.14);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}
.contact-form:hover { transform: translateY(-3px); border-color: #b9dfcb; box-shadow: 0 24px 58px rgba(38, 97, 70, 0.17); }
.contact-form p { color: var(--muted); }
.contact-form label { display: grid; gap: 7px; margin-bottom: 14px; font-weight: 800; color: #4f5658; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%;
  border: 1px solid #cbd8d2;
  border-radius: 7px;
  min-height: 44px;
  padding: 10px 12px;
  font: inherit;
  color: var(--ink);
  background: white;
}
.contact-form textarea { min-height: 120px; resize: vertical; }
.form-status { margin: 12px 0 0; font-weight: 800; }
.form-status.success { color: var(--green); }
.form-status.error { color: #ba3a2a; }

.site-footer {
  padding: 52px clamp(20px, 5vw, 72px) 26px;
  background: #25302b;
  color: white;
}
.footer-grid { max-width: 1180px; margin: 0 auto 30px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.site-footer h3 { font-size: 16px; color: white; }
.site-footer a, .site-footer p { display: block; color: rgba(255, 255, 255, 0.68); margin: 8px 0; }
.site-footer .icp-link { display: inline; color: rgba(255, 255, 255, 0.82); text-decoration: underline; text-underline-offset: 3px; }
.site-footer .icp-link:hover { color: white; }
.site-footer .police-link {
  display: inline;
  color: rgba(255, 255, 255, 0.82);
  text-decoration: underline;
  text-underline-offset: 3px;
  margin: 0;
}
.site-footer .police-link img {
  width: 16px;
  height: 16px;
  display: inline-block;
  margin-right: 4px;
  vertical-align: -2px;
}
.site-footer .police-link:hover { color: white; }
.copyright { max-width: 1180px; margin: 0 auto; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, 0.14); }
.copyright a { display: inline; margin: 0; }
.compact-footer { text-align: center; }

.legal-section {
  background: rgba(255, 255, 255, 0.7);
}

.legal-content {
  max-width: 900px;
  margin: 0 auto;
  padding: clamp(28px, 4vw, 48px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: var(--shadow);
  color: #4f5658;
}

.legal-content h2 {
  margin: 34px 0 12px;
  color: var(--ink);
  font-size: clamp(22px, 2.4vw, 28px);
}

.legal-content p {
  margin-bottom: 14px;
}

.legal-updated {
  color: var(--blue);
  font-weight: 900;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 640ms ease, transform 640ms ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 560ms ease, transform 560ms ease;
}
.reveal-stagger.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 400ms; }
.reveal-stagger.is-visible > *:nth-child(7) { transition-delay: 480ms; }
.reveal-stagger.is-visible > *:nth-child(8) { transition-delay: 560ms; }
.reveal-stagger.is-visible > *:nth-child(9) { transition-delay: 640ms; }
.reveal-stagger.is-visible > *:nth-child(10) { transition-delay: 720ms; }

@keyframes headerDrop {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeRise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes heroZoom {
  from { transform: scale(1); }
  to { transform: scale(1.045); }
}
@keyframes sheenSlide {
  0%, 42% { transform: translateX(-120%); opacity: 0; }
  55% { opacity: 1; }
  78%, 100% { transform: translateX(120%); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
  .reveal, .reveal-stagger > * {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 980px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute;
    top: 84px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 18px;
    background: white;
    border-bottom: 1px solid var(--line);
  }
  .site-nav.open { display: flex; }
  .site-nav .nav-cta { margin-left: 0; text-align: center; }
  .intro-grid, .two-col, .contact-layout, .interface-showcase { grid-template-columns: 1fr; }
  .app-showcase { grid-template-columns: repeat(3, minmax(220px, 1fr)); overflow-x: auto; padding-bottom: 12px; scroll-snap-type: x mandatory; }
  .app-phone { min-width: 220px; scroll-snap-align: start; }
  .app-phone.featured { transform: none; }
  .screen-gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .screen-gallery img, .screen-gallery-secondary img { height: 300px; }
  .experience-heading { align-items: start; flex-direction: column; gap: 8px; }
  .feature-grid, .feature-grid.wide, .scenario-grid, .hardware-grid, .detail-grid { grid-template-columns: repeat(2, 1fr); }
  .architecture, .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .mode-table article { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .site-header { height: 76px; padding: 0 16px; }
  .site-nav { top: 76px; }
  .brand { min-width: 0; }
  .hero { min-height: 720px; align-items: end; }
  .hero-overlay { background: linear-gradient(0deg, rgba(18, 31, 25, 0.9) 0%, rgba(29, 62, 47, 0.7) 58%, rgba(235, 250, 243, 0.22) 100%); }
  .hero-content { margin: 0 auto; padding: 70px 0 54px; }
  h1 { font-size: 40px; }
  h2 { font-size: 30px; }
  .section-head.split { display: block; }
  .stats-panel, .feature-grid, .feature-grid.wide, .scenario-grid, .hardware-grid, .detail-grid, .contact-cards, .architecture, .footer-grid { grid-template-columns: 1fr; }
  .app-showcase { grid-template-columns: 1fr; overflow: visible; }
  .app-phone { min-width: 0; }
  .screen-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .screen-gallery img, .screen-gallery-secondary img { height: 260px; }
  .screen-gallery figcaption b { font-size: 14px; }
  .screen-gallery figcaption span { font-size: 11px; }
  .experience-group + .experience-group { margin-top: 48px; }
  .download-grid { grid-template-columns: 1fr; }
  .download-card { padding: 22px; }
  .mock-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline article { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
}

.about-page .section {
  position: relative;
}

.about-block {
  max-width: 980px;
  margin: 0 auto;
}

.about-block-hero {
  padding: clamp(30px, 4vw, 52px);
  border: 1px solid #c6e7d6;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(232, 246, 238, 0.94));
  box-shadow: 0 22px 52px rgba(38, 97, 70, 0.12);
}

.about-lead {
  margin: 0;
  max-width: 860px;
  color: #2c3436;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.5;
  font-weight: 700;
}

.about-prose {
  display: grid;
  gap: 18px;
  max-width: 900px;
}

.about-prose p {
  margin: 0;
  padding: 20px 22px;
  border-left: 4px solid #62c394;
  border-radius: 0 10px 10px 0;
  background: rgba(255, 255, 255, 0.92);
  color: #445052;
  font-size: 18px;
  line-height: 1.9;
  box-shadow: 0 10px 26px rgba(38, 97, 70, 0.08);
}

.mission-kicker {
  display: inline;
  color: #1f6e49;
  font-weight: 900;
}

.about-principles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.about-principles article {
  display: grid;
  gap: 14px;
  padding: 22px;
  border: 1px solid #cfe8dc;
  border-radius: 10px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(38, 97, 70, 0.09);
}

.about-principles span {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 34px;
  border-radius: 7px;
  font-weight: 900;
  color: #27875b;
  border: 1px solid #c8e7d8;
  background: #eef8f2;
}

.about-principles p {
  margin: 0;
  color: #4a5658;
  font-size: 17px;
  line-height: 1.75;
}

.belief-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.belief-list li {
  position: relative;
  padding: 16px 16px 16px 46px;
  border: 1px solid #cfe8dc;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.94);
  color: #435052;
  font-size: 17px;
  line-height: 1.75;
}

.belief-list li::before {
  content: "✓";
  position: absolute;
  left: 16px;
  top: 15px;
  color: #2a8a5f;
  font-weight: 900;
}

@media (max-width: 980px) {
  .about-principles {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .about-block-hero {
    padding: 24px;
  }

  .about-lead {
    font-size: 24px;
  }

  .about-prose p {
    padding: 16px;
    font-size: 16px;
    line-height: 1.8;
  }

  .belief-list li {
    padding: 14px 14px 14px 42px;
    font-size: 16px;
  }
}

.spec-table-wrap {
  border: 1px solid #c9e5d7;
  border-radius: 10px;
  background: white;
  box-shadow: 0 16px 36px rgba(38, 97, 70, 0.1);
  overflow: auto;
}

.spec-table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
}

.spec-table th,
.spec-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid #e3efe9;
  color: #465255;
  font-size: 15px;
  line-height: 1.6;
}

.spec-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #edf8f2;
  color: #206f4a;
  font-weight: 900;
  white-space: nowrap;
}

.spec-table tbody tr:nth-child(even) td {
  background: #fbfefd;
}

.spec-table tbody tr:hover td {
  background: #f2fbf6;
}

.spec-table td:first-child {
  color: #27875b;
  font-weight: 800;
  white-space: nowrap;
}

@media (max-width: 980px) {
  .spec-table th, .spec-table td { font-size: 14px; padding: 12px 12px; }
}

.equipment-catalog {
  display: grid;
  gap: 22px;
  margin-top: 8px;
}

.equipment-card {
  display: grid;
  grid-template-columns: minmax(420px, 1.15fr) 1fr;
  gap: 22px;
  background: white;
  border: 1px solid #c9e5d7;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 14px 34px rgba(38, 97, 70, 0.11);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.equipment-card:hover {
  transform: translateY(-4px);
  border-color: #b9dfcb;
  box-shadow: 0 22px 48px rgba(38, 97, 70, 0.16);
}

.equipment-photos {
  display: block;
}

.equipment-photos img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  border-radius: 10px;
  border: 1px solid #dcece3;
  background: linear-gradient(180deg, #f8fcfa 0%, #eef6f1 100%);
  padding: 14px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.75);
}

.equipment-copy h3 {
  margin-bottom: 10px;
  color: var(--blue);
}

.equipment-copy p {
  margin-bottom: 10px;
  color: #4a5658;
}

.equipment-copy ul {
  margin: 0;
  padding-left: 20px;
  color: #4a5658;
}

.equipment-copy li {
  margin-bottom: 8px;
}

@media (max-width: 980px) {
  .equipment-card { grid-template-columns: 1fr; }
  .equipment-photos img {
    aspect-ratio: 16 / 10;
  }
}

.equipment-subhead {
  margin-top: 30px;
  margin-bottom: 20px;
}

.equipment-subhead h3 {
  margin-bottom: 8px;
  color: #1f6e49;
  font-size: clamp(24px, 2.8vw, 32px);
}

.equipment-copy ul {
  list-style: disc;
}

@media (max-width: 640px) {
  .equipment-card {
    padding: 14px;
    gap: 14px;
  }
  .equipment-photos {
    display: block;
  }
  .equipment-photos img {
    aspect-ratio: 4 / 3;
    padding: 10px;
  }
}



.equipment-carousel {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  margin-top: 10px;
}

.carousel-viewport {
  overflow: hidden;
  border: 1px solid #c9e5d7;
  border-radius: 14px;
  background: white;
  box-shadow: 0 14px 34px rgba(38, 97, 70, 0.1);
}

.carousel-track {
  display: flex;
  transition: transform 320ms ease;
}

.carousel-slide {
  min-width: 100%;
  display: grid;
  grid-template-columns: minmax(320px, 1fr) 1.05fr;
  gap: 20px;
  padding: 18px;
}

.carousel-slide img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  border-radius: 10px;
  border: 1px solid #dcece3;
  background: linear-gradient(180deg, #f8fcfa 0%, #eef6f1 100%);
  padding: 12px;
}

.slide-copy h3 {
  margin-bottom: 8px;
  color: var(--blue);
}

.slide-copy p {
  color: #4a5658;
}

.slide-copy ul {
  margin: 10px 0;
  padding-left: 20px;
}

.slide-copy li {
  margin-bottom: 8px;
  color: #4a5658;
}

.slide-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.carousel-nav {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid #c9e5d7;
  background: white;
  color: #2c7f59;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.carousel-nav:hover {
  transform: translateY(-2px);
  border-color: #9fd3ba;
  box-shadow: 0 10px 24px rgba(38, 97, 70, 0.14);
}

.carousel-dots {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 4px;
}

.carousel-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 0;
  background: #c8ddd2;
  cursor: pointer;
}

.carousel-dots .dot.is-active {
  width: 26px;
  background: #3fa978;
}

@media (max-width: 980px) {
  .equipment-carousel {
    grid-template-columns: 1fr;
  }
  .carousel-nav {
    display: none;
  }
  .carousel-slide {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

@media (max-width: 640px) {
  .carousel-slide {
    padding: 12px;
  }
  .slide-links {
    gap: 10px;
  }
}

.resource-three {
  display: grid;
  gap: 18px;
  margin-top: 10px;
}

.resource-card {
  border: 1px solid #c9e5d7;
  border-radius: 12px;
  background: white;
  padding: 18px;
  box-shadow: 0 12px 28px rgba(38, 97, 70, 0.09);
}

.resource-card h3 {
  margin-bottom: 8px;
  color: var(--blue);
}

.resource-card p {
  color: #4a5658;
}

.product-family-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.product-family-card {
  padding: 22px;
  border: 1px solid #cfe6d9;
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(38, 97, 70, 0.08);
}

.product-family-teach { background: linear-gradient(145deg, #f2f8ff, #ffffff); border-color: #cddded; }
.product-family-learn { background: linear-gradient(145deg, #f1fbf5, #ffffff); }
.product-family-mark { color: #155c43; font-size: 20px; font-weight: 900; }
.product-family-teach .product-family-mark { color: #245f96; }
.product-family-mark span { margin-left: 6px; color: #6e7d80; font-size: 12px; font-weight: 700; letter-spacing: 0.04em; }
.product-family-card h3 { margin: 10px 0 8px; color: #193f59; }
.product-family-learn h3 { color: #155c43; }
.product-family-card > p { margin: 0; color: #526265; line-height: 1.75; }
.product-family-card ul { margin: 14px 0; padding-left: 18px; }
.product-family-card li { margin-bottom: 7px; color: #526265; font-size: 14px; line-height: 1.55; }
.product-family-role { display: inline-block; padding: 6px 10px; border-radius: 999px; background: rgba(63, 169, 120, 0.1); color: #21724d; font-size: 12px; font-weight: 800; }
.product-family-teach .product-family-role { background: rgba(36, 102, 168, 0.1); color: #245f96; }

.course-series-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 20px; align-items: center; }
.course-series-visual { padding: 12px; border: 1px solid #d7e7df; border-radius: 14px; background: #fff; }
.course-series-visual img { display: block; width: 100%; border-radius: 9px; }
.course-series-list { display: grid; gap: 10px; }
.course-series-list article { padding: 14px 16px; border: 1px solid #d7e7df; border-radius: 11px; background: rgba(255,255,255,0.82); }
.course-series-list b { display: block; color: #21724d; font-size: 17px; }
.course-series-list span { display: block; margin-top: 3px; color: #788688; font-size: 12px; font-weight: 700; }
.course-series-list p { margin: 8px 0 0; color: #526265; font-size: 14px; line-height: 1.65; }
.course-series-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.course-series-tags span { padding: 6px 10px; border: 1px solid #b9ddc8; border-radius: 999px; background: #edf8f1; color: #23734e; font-size: 12px; font-weight: 700; }

@media (max-width: 980px) {
  .product-family-grid, .course-series-layout { grid-template-columns: 1fr; }
}

.resource-card ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.resource-card li {
  margin-bottom: 8px;
  color: #4a5658;
}

.resource-card .equipment-carousel {
  margin-top: 10px;
}

.resource-card .carousel-slide {
  grid-template-columns: 1fr;
  padding: 12px;
}

.resource-card .carousel-slide img {
  aspect-ratio: 16 / 10;
  padding: 10px;
}

.smart-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 12px;
}

.smart-block {
  display: grid;
  grid-template-columns: minmax(240px, 0.9fr) 1.1fr;
  align-items: start;
  gap: 14px;
  border: 1px solid #d6eade;
  border-radius: 14px;
  background: linear-gradient(160deg, #ffffff 0%, #f7fcf9 100%);
  padding: 14px;
  position: relative;
  overflow: hidden;
  transition: box-shadow 180ms ease, border-color 180ms ease;
}

.smart-block::after {
  display: none;
}

.smart-block:hover {
  border-color: #b7dfca;
  box-shadow: 0 10px 24px rgba(38, 97, 70, 0.1);
}

.smart-block:nth-child(even) {
  grid-template-columns: 1.1fr minmax(240px, 0.9fr);
}

.smart-block:nth-child(even) figure {
  order: 2;
}

.smart-block:nth-child(even) .smart-body {
  order: 1;
}

.smart-block figure {
  margin: 0;
  padding: 10px;
  border: 1px solid #e0efe6;
  border-radius: 10px;
  background: linear-gradient(180deg, #f9fdfa 0%, #f2faf5 100%);
}

.smart-block img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  border-radius: 8px;
  background: white;
  border: 1px solid #e0efe6;
  padding: 8px;
  transition: filter 180ms ease;
}

.smart-block:hover img {
  filter: saturate(1.02);
}

.smart-block figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: #506063;
  font-weight: 700;
}

.smart-block:nth-child(2) figcaption {
  text-align: center;
}

.smart-block h4 {
  margin: 2px 0 8px;
  font-size: 18px;
  color: #21724d;
}

.smart-block ul {
  margin: 0;
  padding-left: 16px;
}

.smart-block li {
  margin-bottom: 7px;
  font-size: 14px;
  line-height: 1.65;
}

.smart-body {
  padding: 2px 4px;
}

.robot-detail-hero { display: grid; grid-template-columns: 1fr 0.9fr; gap: 28px; align-items: center; }
.robot-detail-intro h2 { margin: 4px 0 12px; color: #155c43; }
.robot-detail-intro > p:not(.eyebrow) { color: #4a5658; line-height: 1.85; }
.robot-detail-image { margin: 0; padding: 10px; border: 1px solid #d8e9df; border-radius: 14px; background: #fff; box-shadow: 0 14px 30px rgba(38, 97, 70, 0.1); }
.robot-detail-image img { display: block; width: 100%; aspect-ratio: 1.08 / 1; object-fit: cover; border-radius: 9px; }
.robot-detail-image figcaption { padding-top: 8px; color: #526265; font-size: 13px; font-weight: 700; }
.robot-detail-cards, .robot-scenario-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.robot-detail-cards article, .robot-scenario-grid article, .robot-detail-table article { padding: 18px; border: 1px solid #d8e9df; border-radius: 12px; background: #fff; }
.robot-detail-cards b, .robot-scenario-grid b { color: #21724d; font-size: 17px; }
.robot-detail-cards p, .robot-scenario-grid p, .robot-detail-table p { margin: 8px 0 0; color: #526265; font-size: 14px; line-height: 1.7; }
.robot-detail-table { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.robot-detail-table h3 { margin: 0; color: #21724d; font-size: 18px; }
.robot-architecture { margin: 0; padding: 14px; border: 1px solid #d8e9df; border-radius: 14px; background: #fff; }
.robot-architecture img { display: block; width: 100%; max-height: 620px; object-fit: contain; }
.robot-boundary { margin-top: 16px; padding: 13px 15px; border-left: 3px solid #3fa978; background: #eef8f1; color: #526265; line-height: 1.7; }

@media (max-width: 980px) {
  .robot-detail-hero { grid-template-columns: 1fr; }
  .robot-detail-cards, .robot-scenario-grid, .robot-detail-table { grid-template-columns: 1fr; }
}
@media (max-width: 980px) {
  .smart-split {
    grid-template-columns: 1fr;
  }
  .smart-block,
  .smart-block:nth-child(even) {
    grid-template-columns: 1fr;
  }
  .smart-block:nth-child(even) figure,
  .smart-block:nth-child(even) .smart-body {
    order: initial;
  }
}

.resource-media {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 12px 0 14px;
}

.resource-media figure {
  margin: 0;
  border: 1px solid #d8e9e0;
  border-radius: 10px;
  background: #ffffff;
  padding: 8px;
  box-shadow: 0 10px 24px rgba(38, 97, 70, 0.08);
  transition: box-shadow 180ms ease, border-color 180ms ease;
}

.resource-media figure:hover {
  border-color: #bddfcd;
  box-shadow: 0 14px 30px rgba(38, 97, 70, 0.12);
}

.resource-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top;
  border-radius: 8px;
  border: 1px solid #e2eee8;
  background: #f3f7f5;
}

.resource-media figcaption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: #4d5c5f;
  font-weight: 700;
}

.industry-education-card h3 {
  color: #155c43;
}

.industry-education-media {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.industry-education-media img {
  aspect-ratio: auto;
  height: auto;
  object-fit: contain;
}

.industry-education-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.industry-education-grid > div {
  padding: 14px 16px;
  border: 1px solid #d8e9df;
  border-radius: 10px;
  background: #f8fcf9;
}

.industry-education-grid h4 {
  margin: 0 0 8px;
  color: #21724d;
  font-size: 17px;
}

.industry-education-grid ul {
  margin: 0;
  padding-left: 18px;
}

.industry-education-grid li {
  margin-bottom: 7px;
  color: #526265;
  font-size: 14px;
  line-height: 1.65;
}

.industry-education-footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid #dcece3;
  color: #526265;
  font-size: 13px;
}

@media (max-width: 980px) {
  .resource-media {
    grid-template-columns: 1fr;
  }
  .industry-education-grid {
    grid-template-columns: 1fr;
  }
  .industry-education-media {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .industry-education-media {
    grid-template-columns: 1fr;
  }
  .industry-education-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

.hardware-showcase {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 12px;
}

.hardware-item {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #d5e7dd;
  background: #fff;
  box-shadow: 0 10px 24px rgba(38, 97, 70, 0.1);
}

.hardware-item img {
  width: 100%;
  aspect-ratio: 31 / 27;
  object-fit: cover;
  display: block;
}

.hardware-overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: 12px 12px 10px;
  background: linear-gradient(180deg, rgba(2, 3, 3, 0.36), rgba(1, 2, 2, 0.99));
  color: #f7fbf9;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55);
  transform: translateY(68%);
  transition: transform 220ms ease;
}

.hardware-item:hover .hardware-overlay,
.hardware-item:focus-within .hardware-overlay {
  transform: translateY(0);
}

.hardware-overlay h4 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 900;
  line-height: 1.25;
  color: #ffffff;
}

.hardware-overlay ul {
  margin: 0;
  padding-left: 18px;
}

.hardware-overlay li {
  margin-bottom: 6px;
  font-size: 12px;
  line-height: 1.5;
  color: #ecf7f1;
}

@media (max-width: 980px) {
  .hardware-showcase {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .hardware-showcase {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
  .hardware-overlay {
    transform: translateY(0);
  }
}

/* 公众号二维码 */
.wechat-follow {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 22px;
  padding: 18px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.wechat-follow img {
  width: 120px;
  height: 120px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--line);
  flex-shrink: 0;
}
.wechat-follow b { font-size: 16px; }
.wechat-follow p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.wechat-follow .wx-id { color: var(--blue); font-weight: 600; }

@media (max-width: 640px) {
  .auth-card { padding: 24px 18px; border-radius: 16px; }
  .auth-form-grid { grid-template-columns: 1fr; gap: 14px; }
  .captcha-row { align-items: stretch; flex-wrap: wrap; }
  .code-button { min-height: 44px; }
}