:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #eef4fb;
  --text: #172033;
  --muted: #64748b;
  --border: #d8e1ee;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --accent: #2563eb;
  --warning: #b45309;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

body.locked {
  min-height: 100vh;
  overflow: hidden;
}

body.locked .site-header,
body.locked main,
body.locked footer {
  display: none;
}

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

button,
input {
  font: inherit;
}

.lock-screen {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.82), rgba(15, 118, 110, 0.84)),
    url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1800&q=80");
  background-size: cover;
  background-position: center;
}

body:not(.locked) .lock-screen {
  display: none;
}

.lock-card {
  width: min(430px, 100%);
  padding: 34px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--text);
  box-shadow: var(--shadow);
}

.lock-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 8px;
  color: var(--primary);
  background: #dff7f3;
  font-size: 1.4rem;
}

.lock-card .section-kicker {
  color: var(--accent);
}

.lock-card h1 {
  margin: 0;
  line-height: 1.2;
}

.lock-card p {
  color: var(--muted);
}

.lock-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-top: 18px;
}

.lock-form input {
  min-width: 0;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 14px;
  outline: 0;
}

.lock-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.14);
}

.lock-error {
  min-height: 24px;
  margin: 10px 0 0;
  color: #b91c1c !important;
  font-weight: 800;
}

.site-header {
  background:
    linear-gradient(135deg, rgba(14, 116, 144, 0.94), rgba(15, 118, 110, 0.92)),
    url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1800&q=80");
  background-size: cover;
  background-position: center;
  color: #ffffff;
}

.topbar,
.hero,
main,
footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  min-height: 78px;
  display: flex;
  align-items: center;
  gap: 28px;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: #ffffff;
  color: var(--primary);
  font-size: 1.35rem;
  font-weight: 900;
}

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

.brand small {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.78rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.94rem;
  color: rgba(255, 255, 255, 0.86);
}

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

.music-controls {
  display: flex;
  gap: 10px;
}

.floating-music {
  position: fixed;
  top: 18px;
  right: 20px;
  z-index: 1300;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(12px);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.22);
}

.music-btn {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  padding: 0 12px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  cursor: pointer;
  font-weight: 800;
  white-space: nowrap;
}

.music-btn:hover,
.music-btn.playing {
  background: #ffffff;
  color: var(--primary);
}

.music-btn.playing i {
  animation: spin 3s linear infinite;
}

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

.hero {
  min-height: 390px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 36px;
  align-items: center;
  padding: 48px 0 64px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 10px;
  color: #facc15;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.25rem, 5vw, 4.65rem);
  line-height: 1.06;
  letter-spacing: 0;
}

.hero p {
  max-width: 660px;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.btn {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 8px;
  padding: 10px 18px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

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

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 12px 28px rgba(15, 118, 110, 0.22);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.hero-panel {
  padding: 24px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--text);
  box-shadow: var(--shadow);
}

.panel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.panel-row span {
  color: var(--muted);
}

.panel-row strong {
  font-size: 2rem;
}

.status-line {
  margin-top: 18px;
  padding: 12px;
  border-radius: 8px;
  color: var(--primary-dark);
  background: #dcfce7;
  font-weight: 800;
}

main {
  padding: 44px 0 58px;
}

.toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

.toolbar h2,
.info-card h2,
.modal-card h2 {
  margin: 0;
  line-height: 1.2;
}

.toolbar .section-kicker {
  color: var(--accent);
}

.filters {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.search-box {
  width: min(420px, 100%);
  height: 44px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
}

.search-box input {
  width: 100%;
  border: 0;
  outline: 0;
  color: var(--text);
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.resource-card,
.info-card,
.empty-state {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.05);
}

.resource-card {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 265px;
}

.resource-card:hover {
  border-color: rgba(15, 118, 110, 0.45);
  box-shadow: var(--shadow);
}

.resource-top {
  display: flex;
  align-items: center;
  gap: 14px;
}

.app-icon,
.info-icon {
  width: 52px;
  height: 52px;
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  color: var(--primary);
  background: #dff7f3;
  font-size: 1.28rem;
}

.resource-card h3 {
  margin: 0;
  font-size: 1.28rem;
}

.resource-desc {
  margin: 0;
  color: var(--muted);
  min-height: 52px;
}

.resource-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.resource-meta span {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px;
  border-radius: 8px;
  color: var(--muted);
  background: var(--surface-soft);
  font-size: 0.88rem;
  white-space: nowrap;
}

.resource-actions {
  display: flex;
  gap: 10px;
  margin-top: auto;
}

.resource-actions .btn {
  flex: 1;
}

.tips-btn {
  min-width: 94px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: #ffffff;
  font-weight: 800;
  cursor: pointer;
}

.tips-btn:hover {
  border-color: var(--primary);
  color: var(--primary-dark);
}

.empty-state {
  grid-column: 1 / -1;
  min-height: 180px;
  display: grid;
  place-items: center;
  color: var(--muted);
  text-align: center;
}

.empty-state i {
  display: block;
  margin-bottom: 12px;
  font-size: 2rem;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 34px;
}

.info-card {
  padding: 24px;
}

.info-card .info-icon {
  margin-bottom: 16px;
}

.info-card p {
  color: var(--muted);
}

.contact-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.contact-list span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--text);
}

.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(15, 23, 42, 0.68);
}

.modal-card {
  width: min(560px, 100%);
  position: relative;
  padding: 28px;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.modal-card p {
  color: var(--muted);
}

.close-btn {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--text);
  font-size: 1.3rem;
  cursor: pointer;
}

.qr-codes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.qr-codes figure {
  margin: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  text-align: center;
}

.qr-codes img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 6px;
}

.qr-codes figcaption {
  margin-top: 8px;
  font-weight: 800;
}

.verify-card {
  width: min(420px, 100%);
}

.slide-bar-container {
  margin-top: 18px;
  user-select: none;
}

.slide-bar-bg {
  position: relative;
  height: 46px;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #e2e8f0;
}

.slide-bar-progress {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: #99f6e4;
}

.slide-bar-text {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-weight: 800;
  pointer-events: none;
}

.slide-bar-btn {
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #ffffff;
  background: var(--primary);
  cursor: grab;
  z-index: 2;
}

.slide-bar-bg.verified {
  border-color: #16a34a;
  background: #dcfce7;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0 40px;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

@media (max-width: 860px) {
  .topbar {
    flex-wrap: wrap;
    padding: 16px 0;
  }

  .brand {
    min-width: auto;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 26px;
  }

  .toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .filters,
  .search-box {
    width: 100%;
  }

  .resource-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .topbar,
  .hero,
  main,
  footer {
    width: min(100% - 28px, 1180px);
  }

  .nav-links {
    gap: 10px;
    font-size: 0.88rem;
  }

  .resource-meta {
    grid-template-columns: 1fr;
  }

  .resource-actions,
  .hero-actions,
  footer {
    flex-direction: column;
  }

  .tips-btn {
    min-height: 42px;
  }

  .floating-music {
    top: 10px;
    right: 10px;
    left: 10px;
    justify-content: center;
  }

  .music-btn {
    flex: 1;
    padding: 0 8px;
  }

  .lock-form {
    grid-template-columns: 1fr;
  }

  .qr-codes {
    grid-template-columns: 1fr;
  }
}