:root {
  --ink: #10242a;
  --muted: #607079;
  --paper: #f7fbf8;
  --sea: #3498db;
  --deep: #1a5276;
  --aqua: #5dade2;
  --lime: #c4d94c;
  --coral: #ef745f;
  --line: rgba(16, 36, 42, 0.14);
  --shadow: 0 24px 60px rgba(26, 82, 118, 0.18);
  font-family:
    "Noto Sans SC", Inter, "PingFang SC", "Microsoft YaHei",
    "Noto Sans CJK SC", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 10%, rgba(52, 152, 219, 0.18), transparent 34%),
    linear-gradient(180deg, #f0f7fc 0%, #fffaf0 44%, #f5fafb 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 12px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(247, 251, 248, 0.88);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 190px;
}

.brand-mark,
.icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: white;
  background: linear-gradient(145deg, var(--sea), #19a6a8);
  font-weight: 800;
  overflow: hidden;
}

img.brand-mark {
  object-fit: cover;
  background: none;
}

.icon svg {
  width: 22px;
  height: 22px;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: clamp(12px, 2vw, 30px);
  color: #31464d;
  font-size: 15px;
}

.site-nav a {
  padding: 10px 0;
}

.nav-action,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  padding: 0 20px;
  cursor: pointer;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.nav-actions-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-help-links {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0;
  min-height: 44px;
  font-size: 13px;
  line-height: 1;
}

.nav-help-links a {
  padding: 5px 0;
  color: var(--muted);
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s;
}

.nav-help-links a:hover {
  color: var(--sea);
}

.nav-action,
.btn.primary {
  color: white;
  background: var(--sea);
  box-shadow: 0 14px 30px rgba(52, 152, 219, 0.22);
}

.btn.ghost {
  border: 1px solid rgba(255, 255, 255, 0.48);
  color: white;
  background: rgba(255, 255, 255, 0.12);
}

.btn.muted,
.btn.ghost-dark {
  border: 1px solid var(--line);
  color: var(--ink);
  background: white;
}

.nav-action:hover,
.btn:hover {
  transform: translateY(-2px);
}

.section-band,
.section-pad {
  padding-inline: clamp(24px, 4vw, 80px);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(260px, 0.7fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding-top: 40px;
  padding-bottom: 60px;
  overflow: hidden;
  color: white;
  background:
    linear-gradient(115deg, rgba(26, 82, 118, 0.94), rgba(52, 152, 219, 0.75)),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 20px),
    linear-gradient(145deg, #1a5276 0%, #2d7bb8 50%, #3498db 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 80px;
  background: linear-gradient(180deg, transparent, rgba(26, 82, 118, 0.32));
  pointer-events: none;
}

.hero-content,
.hero-panel {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--coral);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.hero .eyebrow {
  color: var(--lime);
  font-size: clamp(22px, 2.6vw, 32px);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 680px;
  margin-bottom: 18px;
  font-size: clamp(36px, 5.2vw, 64px);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(28px, 3.8vw, 52px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 18px;
  line-height: 1.3;
}

p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.hero-copy {
  max-width: 800px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(17px, 2vw, 22px);
}

.hero-slogan {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.7);
  font-size: clamp(13px, 1.2vw, 16px);
  font-style: italic;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.hero-panel {
  display: grid;
  gap: 18px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  position: relative;
  z-index: 1;
}

.hero-metric {
  padding: 24px 20px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  text-align: center;
}

.hero-metric strong {
  display: block;
  font-size: clamp(24px, 3vw, 36px);
  color: white;
  margin-bottom: 4px;
}

.hero-metric span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

.radar-card,
.dashboard-card,
.entry-card,
.lead-form,
.contact-card,
.news-grid article,
.manual-card {
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.radar-card {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 16px;
  align-items: center;
  padding: 18px;
  color: var(--ink);
}

.radar-card p,
.dashboard-card p {
  margin-bottom: 0;
}

.radar {
  position: relative;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 0 28%, rgba(52, 152, 219, 0.16) 29% 30%, transparent 31% 54%, rgba(52, 152, 219, 0.18) 55% 56%, transparent 57%),
    conic-gradient(from 20deg, rgba(196, 217, 76, 0.3), transparent 28%, rgba(52, 152, 219, 0.28), transparent 62%);
  border: 1px solid rgba(52, 152, 219, 0.24);
}

.radar span {
  position: absolute;
  right: 50%;
  top: 50%;
  width: 46%;
  height: 2px;
  transform-origin: right center;
  transform: translateY(-50%) rotate(-60deg);
  animation: sweep 5s linear 6 forwards;
  background: var(--lime);
}

.point {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 8px rgba(239, 116, 95, 0.14);
}

.p1 {
  left: 32%;
  top: 24%;
}

.p2 {
  right: 26%;
  top: 48%;
}

.p3 {
  left: 42%;
  bottom: 20%;
}

.dashboard-card {
  padding: 18px;
}

.dashboard-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 14px;
  color: var(--ink);
  font-weight: 700;
  font-size: 14px;
}

.dashboard-head b {
  color: var(--coral);
  font-size: 12px;
}

.bars {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: end;
  gap: 10px;
  height: 130px;
}

.bars i {
  border-radius: 8px 8px 0 0;
  background: linear-gradient(180deg, var(--lime), var(--sea));
}

.section-pad,
.quick-entry {
  padding-top: clamp(60px, 8vw, 100px);
  padding-bottom: clamp(60px, 8vw, 100px);
}

.section-title {
  max-width: 820px;
  margin-bottom: 38px;
}

.section-title p:not(.eyebrow),
.section-copy > p {
  max-width: 720px;
  font-size: 18px;
}

.entry-grid,
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.entry-card,
.news-grid article {
  padding: 28px;
  background: white;
  cursor: pointer;
  transition:
    transform 0.2s ease-out,
    box-shadow 0.2s ease-out;
}

.entry-card:hover,
.news-grid article:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(26, 82, 118, 0.12);
}

.entry-card {
  min-height: 220px;
}

.entry-card p,
.news-grid p,
.value-grid p {
  margin-bottom: 0;
}

.learning,
.solution {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(320px, 1.15fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  padding-top: clamp(56px, 7vw, 96px);
  padding-bottom: clamp(56px, 7vw, 96px);
  background: #f0f7fc;
}

.phone-shell {
  justify-self: center;
  width: min(330px, 100%);
  min-height: 620px;
  padding: 28px 18px;
  border: 10px solid #1a5276;
  border-radius: 36px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), transparent),
    linear-gradient(160deg, #3498db, #f7faf2);
  box-shadow: 0 32px 80px rgba(26, 82, 118, 0.28);
}

.phone-status {
  width: 74px;
  height: 8px;
  margin: 0 auto 42px;
  border-radius: 99px;
  background: #1a5276;
}

.app-card,
.app-list {
  border-radius: 8px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.84);
}

.app-card strong,
.app-card span,
.app-card small {
  display: block;
}

.app-card strong {
  margin: 12px 0;
  font-size: 26px;
}

.app-list {
  margin-top: 18px;
}

.app-list p {
  display: flex;
  justify-content: space-between;
  margin-bottom: 14px;
}

.app-list p:last-child {
  margin-bottom: 0;
}

.app-list b {
  color: var(--sea);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
  margin-top: 32px;
}

.feature-list article,
.value-grid article {
  padding: 22px;
  border-left: 4px solid var(--aqua);
  border-radius: 8px;
  background: white;
  transition: box-shadow 0.2s ease-out;
}

.value-grid article:hover {
  box-shadow: 0 8px 24px rgba(26, 82, 118, 0.1);
}

.download {
  display: grid;
  grid-template-columns: minmax(300px, 0.95fr) minmax(0, 1.05fr);
  gap: 24px;
  align-items: flex-start;
}

.download-box {
  display: flex;
  gap: 22px;
  align-items: center;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: var(--shadow);
}

.qr {
  position: relative;
  display: grid;
  place-items: center;
  flex: 0 0 150px;
  width: 150px;
  height: 150px;
  border: 1px solid var(--line);
  background: #f8fbf8;
  border-radius: 8px;
  overflow: hidden;
}

.qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.download-actions {
  display: grid;
  gap: 12px;
  flex: 1;
}

.manual-link {
  color: var(--sea);
  font-weight: 800;
}

.link-group {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.guide {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(320px, 1fr);
  gap: 24px;
  padding-top: 32px;
}

.video-mock {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 330px;
  overflow: hidden;
  border-radius: 8px;
  color: white;
  background:
    linear-gradient(rgba(26, 82, 118, 0.34), rgba(26, 82, 118, 0.62)),
    repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.14) 0 1px, transparent 1px 22px),
    linear-gradient(145deg, #3498db, #1a5276);
}

.video-mock span {
  position: absolute;
  left: 24px;
  bottom: 22px;
  font-size: 22px;
  font-weight: 800;
}

.play-button {
  width: 78px;
  height: 78px;
  border: 0;
  border-radius: 50%;
  background: white;
  cursor: pointer;
  transition:
    transform 0.2s ease-out,
    box-shadow 0.2s ease-out;
}

.play-button:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.3);
}

.play-button::after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  margin: auto;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  border-left: 23px solid var(--sea);
  transform: translateX(4px);
}

.manual-card {
  padding: 34px;
  background: white;
}

.solution {
  grid-template-columns: 1fr;
  gap: 40px;
  background: #f5fafc;
}

.solution .section-copy {
  grid-row: span 2;
}

.lead-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  background: white;
}

.lead-form label {
  display: grid;
  gap: 8px;
  color: #3d5259;
  font-weight: 700;
}

.lead-form input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 14px;
  outline: none;
}

.lead-form input:focus {
  border-color: var(--sea);
  box-shadow: 0 0 0 4px rgba(52, 152, 219, 0.12);
}

.form-message {
  min-height: 24px;
  margin-bottom: 0;
  color: var(--sea);
  font-weight: 800;
}

.contact-phones {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.contact-phones a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--sea);
  color: white;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  transition: background 0.2s;
}

.contact-phones a:hover {
  background: var(--deep);
}

.supervision {
  background: var(--deep);
  color: white;
}

.supervision p {
  color: rgba(255, 255, 255, 0.72);
}

.supervision-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 28px;
  align-items: stretch;
}

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

.map-visual {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: white;
}

.map-background {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.china-map-svg {
  width: 95%;
  height: 95%;
}

.province {
  fill: #d0e8f7;
  stroke: #5dade2;
  stroke-width: 1.5;
}

.highlight {
  fill: #2980b9;
  stroke: #1a5276;
  stroke-width: 2;
  filter: drop-shadow(0 0 8px rgba(52, 152, 219, 0.5));
  transition: all 0.3s ease;
}

.highlight.active {
  fill: url(#blueGradient);
  animation: pulse 2s infinite;
}

.label-text {
  fill: white;
  font-size: 16px;
  font-weight: bold;
  text-anchor: middle;
  dominant-baseline: middle;
  filter: drop-shadow(1px 1px 2px rgba(0, 0, 0, 0.3));
}

.label-text-small {
  fill: white;
  font-size: 12px;
  font-weight: bold;
  text-anchor: middle;
  dominant-baseline: middle;
  filter: drop-shadow(1px 1px 2px rgba(0, 0, 0, 0.3));
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

.feature-list.dark article {
  border-left-color: var(--lime);
  background: rgba(255, 255, 255, 0.08);
}

.feature-list.dark h3 {
  color: white;
}

.coverage {
  padding-top: clamp(72px, 10vw, 128px);
  padding-bottom: clamp(72px, 10vw, 128px);
  background: #f0f7fc;
}

.news-grid article span {
  color: var(--coral);
  font-weight: 800;
}

.about-section {
  background: #f0f7fc;
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

.about-block {
  margin-bottom: 32px;
}

.about-block:last-child {
  margin-bottom: 0;
}

.about-block h3 {
  font-size: 18px;
  margin-bottom: 14px;
  color: var(--ink);
}

.biz-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.biz-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 16px 12px;
  border-radius: 10px;
  background: white;
  border: 1px solid var(--line);
  box-shadow: 0 2px 8px rgba(26, 82, 118, 0.04);
  transition: all 0.2s ease;
}

.biz-card:hover {
  border-color: var(--sea);
  box-shadow: 0 4px 16px rgba(52, 152, 219, 0.12);
}

.biz-card--wide {
  grid-column: span 2;
  padding: 16px 24px;
}

.biz-wide-layout {
  display: flex;
  align-items: center;
  gap: 24px;
  width: 100%;
}

.biz-wide-title {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.biz-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(52, 152, 219, 0.12), rgba(93, 173, 226, 0.08));
  color: var(--sea);
}

.biz-card strong {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
}

.biz-sub-grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 4px 20px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}
  box-shadow: 0 4px 16px rgba(52, 152, 219, 0.12);
  transform: translateY(-2px);
}

.about-philosophy {
  padding: 24px 28px;
  border-radius: 8px;
  border-left: 4px solid var(--sea);
  background: white;
  box-shadow: 0 2px 12px rgba(26, 82, 118, 0.06);
}

.about-philosophy p {
  margin: 0;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.8;
}

.about-qual-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.about-qual-card {
  padding: 20px;
  border-radius: 8px;
  background: white;
  border: 1px solid var(--line);
  box-shadow: 0 2px 12px rgba(26, 82, 118, 0.05);
  text-align: center;
  transition: all 0.2s ease;
}

.about-qual-card:hover {
  box-shadow: 0 8px 24px rgba(26, 82, 118, 0.1);
  transform: translateY(-2px);
}

.about-qual-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 12px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--sea), #19a6a8);
  color: white;
}

.about-qual-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
  color: var(--ink);
}

.about-qual-card span {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.about-side {
  position: sticky;
  top: 96px;
}

.contact-card {
  padding: 30px;
  background: var(--deep);
  color: white;
}

.contact-card p {
  color: rgba(255, 255, 255, 0.72);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 32px clamp(20px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.72);
  background: #1a5276;
}

.footer-brand strong {
  display: block;
  margin-bottom: 4px;
  color: white;
  font-size: 18px;
}

.footer-brand span {
  font-size: 13px;
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: white;
}

.footer-legal {
  text-align: right;
  font-size: 13px;
}

.footer-legal small {
  display: block;
  margin-top: 4px;
  opacity: 0.6;
}

.footer-legal a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-legal a:hover {
  color: white;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 30;
  max-width: min(360px, calc(100vw - 40px));
  padding: 14px 18px;
  border-radius: 8px;
  color: white;
  background: var(--deep);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@keyframes sweep {
  to {
    transform: rotate(360deg);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

@media (max-width: 980px) {
  .site-header {
    flex-wrap: wrap;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    white-space: nowrap;
  }

  .hero,
  .learning,
  .solution,
  .download,
  .guide,
  .supervision-layout,
  .cooperation-layout,
  .about-layout {
    grid-template-columns: 1fr;
  }

  .about-qual-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-side {
    position: static;
  }

  .entry-grid,
  .value-grid,
  .news-grid,
  .supervision-features {
    grid-template-columns: repeat(2, 1fr);
  }

  .solution .section-copy {
    grid-row: auto;
  }

  .contact-card {
    max-width: 520px;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: auto;
    padding: 12px 16px;
  }

  .brand small,
  .nav-action,
  .nav-help-links {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 64px;
    padding-bottom: 76px;
  }

  .hero-actions,
  .download-actions {
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .radar-card {
    grid-template-columns: 1fr;
  }

  .entry-grid,
  .value-grid,
  .news-grid,
  .supervision-features {
    grid-template-columns: 1fr;
  }

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

  .about-qual-row {
    grid-template-columns: 1fr;
  }

  .phone-shell {
    min-height: 520px;
  }

  .download-box {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .download-actions {
    align-items: center;
  }

  .map-visual {
    min-height: 320px;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-nav {
    flex-wrap: wrap;
    gap: 16px;
  }

  .footer-legal {
    text-align: left;
  }
}

.quality-timeline {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.phase {
  flex: 1;
  min-width: 280px;
  position: relative;
}

.phase:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -12px;
  width: 24px;
  height: 2px;
  background: var(--line);
  transform: translateY(-50%);
}

.phase-header {
  margin-bottom: 16px;
  text-align: center;
}

.phase-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-weight: 800;
  font-size: 12px;
  line-height: 1.2;
}

.learning-before .phase-label {
  background: var(--lime);
  color: #1a5276;
}

.learning-during .phase-label {
  background: var(--sea);
  color: white;
}

.learning-after .phase-label {
  background: var(--coral);
  color: white;
}

.phase-content {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.feature-card {
  flex: 1;
  min-width: 140px;
  padding: 16px;
  border-radius: 8px;
  background: white;
  box-shadow: 0 2px 12px rgba(26, 82, 118, 0.06);
  transition:
    transform 0.15s ease-out,
    box-shadow 0.15s ease-out;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26, 82, 118, 0.1);
}

.feature-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  margin-bottom: 10px;
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(52, 152, 219, 0.12), rgba(52, 152, 219, 0.06));
  color: var(--sea);
}

.feature-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 0;
}

.cooperation-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.cooperation-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: stretch;
}

.cooperation-aside {
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
}

.coop-note {
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
}

.cooperation-list {
  display: grid;
  gap: 8px;
}

.cooperation-item {
  padding: 10px 16px;
  border-left: 3px solid var(--sea);
  border-radius: 6px;
  background: white;
  box-shadow: 0 1px 6px rgba(26, 82, 118, 0.05);
  transition: box-shadow 0.2s ease-out;
}

.cooperation-item:hover {
  box-shadow: 0 4px 14px rgba(26, 82, 118, 0.1);
}

.cooperation-item h3 {
  font-size: 14px;
  margin-bottom: 0;
}

.cooperation-card {
  padding: 28px;
  border-radius: 12px;
  background: white;
  box-shadow: 0 4px 16px rgba(26, 82, 118, 0.06);
  text-align: center;
  transition:
    transform 0.2s ease-out,
    box-shadow 0.2s ease-out;
}

.cooperation-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(26, 82, 118, 0.12);
}

.coop-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(196, 217, 76, 0.2), rgba(196, 217, 76, 0.1));
  color: var(--deep);
}

@media (max-width: 980px) {
  .cooperation-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .cooperation-grid {
    grid-template-columns: 1fr;
  }
}

/* Help pages */

.nav-current {
  color: var(--sea);
  font-weight: 700;
}

.breadcrumb {
  padding: 12px clamp(20px, 5vw, 72px);
  font-size: 13px;
  color: var(--muted);
}

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

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

.breadcrumb span {
  margin: 0 6px;
}

.help-hero {
  padding: clamp(80px, 10vw, 120px) clamp(20px, 5vw, 72px) clamp(40px, 5vw, 60px);
  background:
    linear-gradient(115deg, rgba(26, 82, 118, 0.92), rgba(52, 152, 219, 0.7)),
    linear-gradient(145deg, #1a5276, #3498db);
  color: white;
}

.help-hero h1 {
  font-size: clamp(28px, 4vw, 48px);
  white-space: normal;
}

.help-hero p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
}

.help-hero .eyebrow {
  color: var(--lime);
}

.help-nav-links {
  display: flex;
  gap: 16px;
  margin-top: 16px;
  font-size: 14px;
}

.help-nav-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.help-nav-links a:hover {
  color: #fff;
}

.help-nav-current {
  color: #fff;
  font-weight: 500;
}

.help-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding: 28px clamp(20px, 5vw, 72px);
  background: white;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 76px;
  z-index: 10;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.filter-label {
  font-weight: 700;
  color: var(--muted);
  font-size: 14px;
}

.filter-btns {
  display: flex;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.filter-btn {
  padding: 8px 18px;
  border: 0;
  background: white;
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  transition: background 0.15s, color 0.15s;
}

.filter-btn + .filter-btn {
  border-left: 1px solid var(--line);
}

.filter-btn.active {
  background: var(--sea);
  color: white;
  font-weight: 700;
}

.help-steps {
  max-width: 860px;
  margin: 0 auto;
  padding: clamp(32px, 5vw, 56px) clamp(20px, 5vw, 72px);
  display: grid;
  gap: 24px;
}

.step-card {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: 0 4px 16px rgba(26, 82, 118, 0.06);
}

.step-badge {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--sea);
  color: white;
  font-size: 20px;
  font-weight: 800;
  flex-shrink: 0;
}

.step-badge--conditional {
  background: var(--aqua);
}

.step-body h2 {
  font-size: clamp(20px, 2.5vw, 26px);
  margin-bottom: 14px;
}

.step-body h3 {
  font-size: 18px;
  margin-top: 20px;
}

.step-body ol,
.step-body ul {
  margin: 0 0 8px;
  padding-left: 20px;
  line-height: 2;
}

.step-body li {
  color: var(--ink);
}

.step-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 4px;
  background: rgba(93, 173, 226, 0.14);
  color: var(--sea);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-tip {
  margin-top: 16px;
  padding: 16px 20px;
  border-left: 4px solid var(--aqua);
  border-radius: 0 8px 8px 0;
  background: #f0f7fc;
}

.step-tip > strong {
  display: block;
  margin-bottom: 8px;
  color: var(--deep);
}

.step-tip p {
  margin-bottom: 6px;
  color: var(--ink);
}

.step-tip ul {
  margin: 0;
  padding-left: 20px;
}

.step-tip li {
  color: var(--ink);
  line-height: 1.8;
}

.step-qr {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
  padding: 16px;
  background: #f8fbf8;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.step-qr img {
  border-radius: 8px;
  object-fit: contain;
}

.step-qr p {
  margin: 0;
  font-weight: 700;
  color: var(--ink);
}

.step-note {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 12px;
}

.help-flow {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 72px) clamp(48px, 6vw, 80px);
}

.help-flow h2 {
  font-size: 20px;
  margin-bottom: 16px;
}

.flow-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 24px;
  background: #f0f7fc;
  border-radius: 8px;
}

.flow-node {
  padding: 8px 16px;
  background: var(--sea);
  color: white;
  border-radius: 6px;
  font-weight: 700;
  font-size: 14px;
}

.flow-arrow {
  color: var(--muted);
  font-size: 18px;
  font-weight: 700;
}

.help-manual-img {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 72px) clamp(48px, 6vw, 80px);
}

.help-manual-img h2 {
  font-size: 20px;
  margin-bottom: 4px;
}

.help-manual-img > p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 16px;
}

.manual-img-wrap {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.manual-flowchart {
  width: 100%;
  height: auto;
  display: block;
}

.step-screenshot {
  margin: 16px 0 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.step-screenshot img {
  width: 100%;
  height: auto;
  display: block;
}

/* Help TOC */

.help-toc {
  max-width: 860px;
  margin: 0 auto;
  padding: 28px clamp(20px, 5vw, 72px) 0;
}

.help-toc h2 {
  font-size: 18px;
  margin-bottom: 12px;
}

.help-toc ol {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 6px 24px;
  margin: 0;
  padding-left: 20px;
}

.help-toc a {
  color: var(--sea);
  font-weight: 500;
  line-height: 2;
}

.help-toc a:hover {
  text-decoration: underline;
}

/* Func grid */

.func-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin: 12px 0;
}

.func-item {
  padding: 14px 16px;
  border-radius: 8px;
  background: #f8fbf8;
  border: 1px solid var(--line);
}

.func-item strong {
  display: block;
  margin-bottom: 4px;
  color: var(--deep);
  font-size: 14px;
}

.func-item p {
  margin: 0;
  font-size: 14px;
}

.sub-section {
  margin: 16px 0;
  padding: 16px 20px;
  border-radius: 8px;
  background: #fafcfe;
  border: 1px solid var(--line);
}

.sub-section h3 {
  margin-top: 0;
}

/* FAQ */

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  padding: clamp(32px, 5vw, 56px) clamp(20px, 5vw, 72px);
  display: grid;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: 0 4px 16px rgba(26, 82, 118, 0.06);
  overflow: hidden;
}

.faq-item[open] {
  border-color: var(--aqua);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  margin-left: auto;
  font-size: 22px;
  font-weight: 300;
  color: var(--muted);
  flex-shrink: 0;
}

.faq-item[open] .faq-question::after {
  content: "−";
}

.faq-num {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--sea);
  color: white;
  font-size: 14px;
  font-weight: 800;
  flex-shrink: 0;
}

.faq-answer {
  padding: 0 24px 20px 70px;
}

.faq-answer h3 {
  font-size: 15px;
  margin-top: 12px;
}

.faq-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
}

.faq-steps span {
  padding: 6px 12px;
  background: #f0f7fc;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
}

.faq-arrow {
  color: var(--sea);
  font-weight: 700;
  background: none !important;
  padding: 0 !important;
}

.faq-contact {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 72px) clamp(48px, 6vw, 80px);
  text-align: center;
}

.faq-contact h2 {
  font-size: 24px;
}

.faq-contact p {
  margin-bottom: 20px;
}

@media (max-width: 640px) {
  .help-filter {
    flex-direction: column;
    gap: 14px;
    top: 0;
  }

  .filter-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .step-card {
    grid-template-columns: 1fr;
  }

  .step-badge {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }

  .func-grid {
    grid-template-columns: 1fr;
  }

  .help-toc ol {
    grid-template-columns: 1fr;
  }

  .flow-bar {
    flex-direction: column;
  }

  .faq-answer {
    padding-left: 24px;
  }

  .step-qr {
    flex-direction: column;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

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

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition:
    transform 0.2s ease,
    opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 980px) {
  .menu-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    order: 3;
    width: 100%;
    flex-direction: column;
    gap: 0;
    padding: 12px 0;
    border-top: 1px solid var(--line);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 640px) {
  .site-nav a:last-child {
    border-bottom: 0;
  }
}