:root {
  --bg-deep: #1a1838;
  --bg-night: #252150;
  --bg-twilight: #332a68;
  --bg-card: rgba(45, 40, 85, 0.6);
  --bg-input: rgba(30, 28, 60, 0.6);
  --text-primary: #f0ecff;
  --text-secondary: #b8b0e0;
  --text-muted: #8078b8;
  --text-dim: #5a5290;
  --accent: #e8c878;
  --accent-glow: rgba(232, 200, 120, 0.15);
  --accent-bright: #f5d890;
  --border: rgba(160, 150, 220, 0.15);
  --border-hover: rgba(232, 200, 120, 0.25);
  --notice-accent: #c8a8e8;
  --font-serif: "Noto Serif SC", Georgia, serif;
  --font-mono: "Space Mono", "Courier New", monospace;
  --font-sans: "Noto Sans SC", -apple-system, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: var(--bg-deep);
  font-family: var(--font-sans);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ===== 3D Particle Canvas ===== */
.particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ===== Flower Decorations ===== */
.flower-decor {
  position: fixed;
  pointer-events: none;
  z-index: 1;
}

.flower-tl {
  top: -20px;
  left: -30px;
  width: 250px;
  opacity: 0.4;
  animation: gentleSway 12s ease-in-out infinite alternate;
}

.flower-br {
  bottom: -30px;
  right: -40px;
  width: 220px;
  opacity: 0.35;
  transform: scaleX(-1);
  animation: gentleSway 14s ease-in-out infinite alternate;
  animation-delay: -3s;
}

@keyframes gentleSway {
  0% { transform: rotate(-2deg) translateY(0); }
  100% { transform: rotate(2deg) translateY(-5px); }
}

.flower-br {
  animation-name: gentleSwayBR;
}

@keyframes gentleSwayBR {
  0% { transform: scaleX(-1) rotate(-2deg) translateY(0); }
  100% { transform: scaleX(-1) rotate(2deg) translateY(-5px); }
}

/* ===== Page Layout ===== */
.gb-page {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px 40px;
  background: radial-gradient(ellipse at 50% 0%, rgba(60, 50, 120, 0.3) 0%, transparent 70%);
  min-height: 100vh;
}

/* ===== Header ===== */
.gb-header {
  text-align: center;
  padding: 40px 0 30px;
  position: relative;
}

.gb-back-link {
  position: absolute;
  top: 20px;
  left: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s;
}

.gb-back-link:hover {
  color: var(--accent);
}

.gb-back-arrow {
  font-size: 16px;
  transition: transform 0.3s;
}

.gb-back-link:hover .gb-back-arrow {
  transform: translateX(-4px);
}

.gb-brand {
  display: inline-block;
}

.gb-title {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 12px;
  text-indent: 12px;
  line-height: 1.2;
  text-shadow: 0 0 30px rgba(232, 200, 120, 0.15);
}

.gb-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 12px 0 8px;
}

.divider-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--text-muted), transparent);
}

.divider-flower {
  width: 16px;
  height: 16px;
  opacity: 0.6;
}

.gb-subtitle {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  letter-spacing: 6px;
  text-indent: 6px;
}

/* ===== 寻人启事 Section ===== */
.gb-notice-section {
  margin-bottom: 36px;
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.gb-notice-card {
  background: rgba(60, 45, 100, 0.5);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(200, 168, 232, 0.2);
  border-radius: 12px;
  padding: 28px 32px;
  position: relative;
  overflow: hidden;
}

.gb-notice-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--notice-accent), transparent);
  opacity: 0.5;
}

.gb-notice-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.gb-notice-icon {
  color: var(--notice-accent);
  opacity: 0.8;
}

.gb-notice-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  color: var(--notice-accent);
  letter-spacing: 4px;
}

.gb-notice-body {
  padding-left: 4px;
}

.gb-notice-text {
  font-size: 15px;
  line-height: 2;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.gb-notice-wechat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 8px 20px;
  background: rgba(200, 168, 232, 0.1);
  border: 1px solid rgba(200, 168, 232, 0.2);
  border-radius: 8px;
}

.gb-wechat-icon {
  color: var(--notice-accent);
}

.gb-wechat-text {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
}

/* ===== Form Section ===== */
.gb-form-section {
  margin-bottom: 40px;
}

.gb-form-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
}

.gb-form-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.gb-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.gb-form-field {
  position: relative;
}

.gb-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-family: var(--font-mono);
  letter-spacing: 1px;
}

.gb-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.3s;
}

.gb-input::placeholder {
  color: var(--text-dim);
}

.gb-input:focus {
  border-color: var(--border-hover);
}

.gb-textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.3s;
  resize: vertical;
  min-height: 80px;
}

.gb-textarea::placeholder {
  color: var(--text-dim);
}

.gb-textarea:focus {
  border-color: var(--border-hover);
}

.gb-char-count {
  position: absolute;
  bottom: 8px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
}

.gb-submit-btn {
  align-self: flex-start;
  padding: 10px 28px;
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.gb-submit-btn:hover {
  background: var(--accent-glow);
  color: var(--accent-bright);
  box-shadow: 0 0 15px var(--accent-glow);
}

.gb-submit-btn:active {
  transform: scale(0.97);
}

.gb-submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.gb-form-msg {
  margin-top: 12px;
  font-size: 13px;
  min-height: 20px;
  transition: opacity 0.3s;
}

.gb-form-msg.success {
  color: #8ee8a0;
}

.gb-form-msg.error {
  color: #e89090;
}

/* ===== Messages Section ===== */
.gb-messages-section {
  margin-bottom: 30px;
}

.gb-messages-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.gb-messages-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 2px;
}

.gb-messages-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-input);
  padding: 2px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.gb-refresh-btn {
  margin-left: auto;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.3s;
}

.gb-refresh-btn:hover {
  color: var(--accent);
  border-color: var(--border-hover);
}

.gb-refresh-btn:active svg {
  transform: rotate(180deg);
  transition: transform 0.5s;
}

.gb-messages-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gb-loading {
  text-align: center;
  padding: 40px;
  color: var(--text-dim);
  font-size: 14px;
}

.gb-empty {
  text-align: center;
  padding: 40px;
  color: var(--text-dim);
  font-size: 14px;
}

/* ===== Message Card ===== */
.gb-message-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  animation: msgAppear 0.4s ease-out;
}

@keyframes msgAppear {
  0% { opacity: 0; transform: translateY(10px); }
  100% { opacity: 1; transform: translateY(0); }
}

.gb-message-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.gb-message-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
}

.gb-message-time {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
}

.gb-message-body {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  word-wrap: break-word;
  white-space: pre-wrap;
}

/* ===== Footer ===== */
.gb-footer {
  text-align: center;
  padding: 20px 0;
}

.gb-admin-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  text-decoration: none;
  padding: 4px 12px;
  border-radius: 4px;
  transition: color 0.3s;
  margin-bottom: 8px;
}

.gb-admin-link:hover {
  color: var(--text-muted);
}

.gb-footer p {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-dim);
  letter-spacing: 0.5px;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .gb-page {
    padding: 0 14px 30px;
  }

  .gb-title {
    font-size: 30px;
    letter-spacing: 8px;
    text-indent: 8px;
  }

  .gb-form-card {
    padding: 20px 18px;
  }

  .gb-notice-card {
    padding: 20px 18px;
  }

  .gb-notice-text {
    font-size: 14px;
  }

  .gb-wechat-text {
    font-size: 14px;
  }

  .gb-back-link {
    position: relative;
    top: 0;
    margin-bottom: 16px;
    display: inline-flex;
  }

  .flower-tl { width: 160px; }
  .flower-br { width: 140px; }

  .gb-submit-btn {
    align-self: stretch;
    text-align: center;
  }
}