:root {
  --ink: #13261f;
  --ink-soft: #3d564b;
  --paper: #f3efe6;
  --accent: #1f7a57;
  --accent-deep: #0b3d2e;
  --warn: #c45c26;
  --surface: rgba(255, 252, 246, 0.88);
  --line: rgba(19, 38, 31, 0.12);
  --shadow: 0 18px 50px rgba(11, 61, 46, 0.18);
  --radius: 22px;
  --font-body: "Noto Sans SC", sans-serif;
  --font-display: "ZCOOL XiaoWei", "Noto Sans SC", serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: #d9e5dc;
  min-height: 100dvh;
}

.bg-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 10% 0%, rgba(31, 122, 87, 0.28), transparent 55%),
    radial-gradient(ellipse 70% 45% at 90% 100%, rgba(196, 92, 38, 0.18), transparent 50%),
    linear-gradient(160deg, #e8f0ea 0%, #f3efe6 45%, #dde8e1 100%);
}

.bg-layer::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cpath fill='none' stroke='%230b3d2e' stroke-opacity='0.08' d='M0 60h120M60 0v120'/%3E%3C/svg%3E");
}

.app {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  min-height: 100dvh;
  display: grid;
  align-items: center;
}

.panel {
  background: var(--surface);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1.25rem, 4vw, 2rem);
  animation: rise 0.55s ease both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.brand {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  letter-spacing: 0.04em;
  color: var(--accent-deep);
  margin: 0 0 0.35rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.lede {
  margin: 0 0 1.5rem;
  color: var(--ink-soft);
  line-height: 1.65;
  font-size: 1rem;
}

.muted {
  color: var(--ink-soft);
  margin: 0;
}

.plate {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3.2rem);
  letter-spacing: 0.12em;
  text-align: center;
  padding: 1rem 1.25rem;
  border: 2px solid var(--accent-deep);
  border-radius: 14px;
  background: linear-gradient(180deg, #fffdf8, #eef6f1);
  margin: 0 0 1.25rem;
}

.meta-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: grid;
  gap: 0.75rem;
}

.meta-list li {
  display: grid;
  gap: 0.2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}

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

.meta-label {
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.meta-value {
  font-size: 1.05rem;
  font-weight: 500;
  word-break: break-word;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 0.9rem 1.35rem;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--accent-deep);
  color: #f7fbf8;
  box-shadow: 0 10px 24px rgba(11, 61, 46, 0.28);
}

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

.btn-secondary {
  background: transparent;
  color: var(--accent-deep);
  border: 1px solid rgba(11, 61, 46, 0.28);
}

.media-frame {
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  background: #101814;
  border: 1px solid var(--line);
}

.media-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(72vh, 720px);
  object-fit: contain;
  background: #101814;
}

.web-frame {
  width: 100%;
  min-height: min(70vh, 640px);
  border: 0;
  border-radius: 16px;
  background: #fff;
}

.audio-wrap {
  display: grid;
  gap: 1rem;
}

.audio-art {
  aspect-ratio: 1;
  width: min(100%, 280px);
  margin: 0 auto;
  border-radius: 18px;
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.35), transparent 40%),
    linear-gradient(145deg, #1f7a57, #0b3d2e 60%, #16352b);
  display: grid;
  place-items: center;
  color: #eef7f2;
  font-family: var(--font-display);
  font-size: 2.5rem;
  letter-spacing: 0.08em;
  animation: pulse 3.2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
}

audio {
  width: 100%;
}

.error {
  border-color: rgba(196, 92, 38, 0.35);
}

.error .brand {
  color: var(--warn);
}

.help-grid {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.25rem;
}

.help-item code {
  display: block;
  margin-top: 0.35rem;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  background: rgba(11, 61, 46, 0.06);
  font-size: 0.82rem;
  overflow-x: auto;
  white-space: nowrap;
}

.admin-app {
  align-items: start;
}

.admin-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: start;
  margin-bottom: 0.5rem;
}

.form-grid {
  display: grid;
  gap: 0.9rem;
}

.form-grid label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.form-grid input,
.form-grid select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.75rem 0.85rem;
  font: inherit;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.75);
}

.form-grid input:focus,
.form-grid select:focus {
  outline: 2px solid rgba(31, 122, 87, 0.35);
  border-color: var(--accent);
}

.check-row {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
}

.type-fields {
  padding-top: 0.25rem;
}

.subhead {
  margin: 1.75rem 0 0.85rem;
  font-size: 1.1rem;
  color: var(--accent-deep);
}

.result {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 14px;
  background: rgba(31, 122, 87, 0.08);
  border: 1px solid rgba(31, 122, 87, 0.18);
}

.result-url {
  display: block;
  margin-top: 0.5rem;
  word-break: break-all;
  font-size: 0.95rem;
}

.list {
  display: grid;
  gap: 0.75rem;
}

.list-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
}

.list-item code {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8rem;
  word-break: break-all;
}

@media (max-width: 640px) {
  .actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

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

  .admin-head {
    flex-direction: column;
  }
}