/**
 * 漂流瓶 — 瓶子动画 + 纸条 + 留言板
 */

/* ═══════ 页面容器 ═══════ */

#driftBottleApp .db-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: linear-gradient(180deg, #E8F4F8 0%, #B8D8E8 40%, #7AB8D4 100%);
}

/* ═══════ 模式切换 ═══════ */

#driftBottleApp .db-mode-tabs {
  display: flex;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 0.5px solid rgba(0,0,0,0.06);
}
#driftBottleApp .db-mode-tab {
  flex: 1;
  text-align: center;
  padding: 10px 0;
  font-size: 14px;
  font-weight: 400;
  color: #7A9BAE;
  cursor: pointer;
  letter-spacing: 1px;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
}
#driftBottleApp .db-mode-tab.active {
  color: #2E5F75;
  border-bottom-color: #2E5F75;
  font-weight: 600;
}

/* ═══════ 扔瓶子模式 ═══════ */

#driftBottleApp .db-throw-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
#driftBottleApp .db-bottle-anim {
  width: 80px; height: 120px;
  position: relative;
  cursor: pointer;
  animation: dbFloat 3s ease-in-out infinite;
}
@keyframes dbFloat {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-12px) rotate(2deg); }
}
#driftBottleApp .db-bottle-anim.throwing {
  animation: dbThrow 0.8s ease-out forwards;
}
@keyframes dbThrow {
  0% { transform: translateY(0) rotate(0); opacity: 1; }
  50% { transform: translateY(-80px) translateX(60px) rotate(15deg); opacity: 0.7; }
  100% { transform: translateY(-200px) translateX(200px) rotate(30deg); opacity: 0; }
}
#driftBottleApp .db-throw-hint {
  font-size: 13px;
  color: #6A9AB5;
  font-weight: 300;
  letter-spacing: 1px;
  margin-top: 12px;
  text-align: center;
}
#driftBottleApp .db-thrown-list {
  padding: 12px;
}
#driftBottleApp .db-thrown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: rgba(255,255,255,0.7);
  border-radius: 12px;
  margin-bottom: 6px;
  font-size: 12px;
  color: #5A8A9E;
  font-weight: 300;
  letter-spacing: 0.5px;
  backdrop-filter: blur(8px);
}

/* ═══════ 捞瓶子模式 ═══════ */

#driftBottleApp .db-pick-area {
  flex: 1;
  overflow-y: auto;
  padding: 10px 0 20px;
}
#driftBottleApp .db-bottle-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  margin: 6px 12px;
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 16px;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.5);
  box-shadow: 0 2px 8px rgba(58,107,130,0.08);
  transition: transform 0.15s;
}
#driftBottleApp .db-bottle-row:active {
  transform: scale(0.97);
}
#driftBottleApp .db-bottle-mini {
  width: 36px; height: 54px;
  flex-shrink: 0;
  position: relative;
  animation: dbFloat 2.5s ease-in-out infinite;
}
#driftBottleApp .db-bottle-mini:nth-child(1) { animation-delay: 0s; }
#driftBottleApp .db-bottle-info {
  flex: 1; min-width: 0;
}
#driftBottleApp .db-bottle-preview {
  font-size: 13px;
  color: #3D6B82;
  font-weight: 400;
  letter-spacing: 0.3px;
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#driftBottleApp .db-bottle-from {
  font-size: 10px;
  color: #8AB0C0;
  margin-top: 3px;
  font-weight: 300;
  letter-spacing: 0.5px;
}
#driftBottleApp .db-bottle-time {
  font-size: 10px;
  color: #AAC8D4;
  flex-shrink: 0;
}

/* ═══════ 瓶子详情弹层 ═══════ */

#driftBottleApp .db-detail-overlay,
.db-detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 900;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: dbFadeIn 0.25s ease;
}
@keyframes dbFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
#driftBottleApp .db-detail-card,
.db-detail-card {
  width: 88%;
  max-width: 340px;
  max-height: 78vh;
  background: #FAF5E8;
  border-radius: 12px;
  overflow-y: auto;
  box-shadow: 0 12px 48px rgba(0,0,0,0.2);
  position: relative;
  animation: dbBottleOpen 0.5s ease;
}
@keyframes dbBottleOpen {
  0% { transform: scale(0.3) rotate(-10deg); opacity: 0; }
  60% { transform: scale(1.05) rotate(1deg); }
  100% { transform: scale(1) rotate(0); opacity: 1; }
}
#driftBottleApp .db-detail-close,
.db-detail-close {
  position: absolute;
  top: 8px; right: 8px;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: none;
  background: rgba(0,0,0,0.06);
  color: #888;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
#driftBottleApp .db-paper,
.db-paper {
  padding: 24px 20px 16px;
  font-family: KaiTi, STKaiti, serif;
  color: #4A3728;
  font-size: 14px;
  line-height: 1.9;
  white-space: pre-wrap;
  word-break: break-word;
  background:
    radial-gradient(circle at 18% 22%, rgba(139,115,85,0.08), transparent 26px),
    radial-gradient(circle at 82% 68%, rgba(200,160,96,0.10), transparent 34px),
    linear-gradient(135deg, rgba(255,249,232,0.96), rgba(239,224,194,0.92));
  min-height: 120px;
}
#driftBottleApp .db-paper-from,
.db-paper-from {
  text-align: right;
  font-size: 11px;
  color: #8B7355;
  margin-top: 8px;
  font-style: italic;
}

/* ═══════ 发送者信息弹窗 ═══════ */

#driftBottleApp .db-sender-popup,
.db-sender-popup {
  margin: 0 16px 12px;
  padding: 12px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid #E8DCC8;
  font-size: 12px;
  color: #6B5B3E;
  line-height: 1.6;
}
#driftBottleApp .db-sender-name,
.db-sender-name {
  font-size: 14px;
  font-weight: 500;
  color: #3A6B82;
}
#driftBottleApp .db-sender-rel,
.db-sender-rel {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 8px;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.5px;
  margin-top: 4px;
}
#driftBottleApp .db-sender-rel.friend, .db-sender-rel.friend { background: #E8F5E0; color: #5A8A4A; }
#driftBottleApp .db-sender-rel.mayknow, .db-sender-rel.mayknow { background: #FFF3E0; color: #C88A3A; }
#driftBottleApp .db-sender-rel.stranger, .db-sender-rel.stranger { background: #F0F0F0; color: #999; }

/* ═══════ 留言板 ═══════ */

#driftBottleApp .db-reply-section,
.db-reply-section {
  border-top: 1px solid #E8DCC8;
  padding: 12px 16px;
  background: #FFF9F0;
}
#driftBottleApp .db-reply-title,
.db-reply-title {
  font-size: 11px;
  color: #A89880;
  font-weight: 400;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
#driftBottleApp .db-reply-item,
.db-reply-item {
  padding: 8px 0;
  border-bottom: 0.5px solid #F0E8D8;
  font-size: 12px;
  color: #6B5B3E;
  line-height: 1.6;
}
#driftBottleApp .db-reply-sender,
.db-reply-sender {
  font-size: 10px;
  color: #A89880;
  font-weight: 500;
  margin-bottom: 2px;
}
#driftBottleApp .db-reply-input-row,
.db-reply-input-row {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}
#driftBottleApp .db-reply-input,
.db-reply-input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid #E0D8C8;
  border-radius: 10px;
  font-size: 12px;
  background: #fff;
  color: #5A4A3A;
  font-family: inherit;
  outline: none;
}
#driftBottleApp .db-reply-input:focus,
.db-reply-input:focus {
  border-color: #8AB0C0;
}
#driftBottleApp .db-reply-send,
.db-reply-send {
  padding: 8px 14px;
  background: #7AB8D4;
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 12px;
  cursor: pointer;
  letter-spacing: 0.5px;
  font-family: inherit;
  white-space: nowrap;
}
#driftBottleApp .db-reply-send:active {
  background: #5A9AB5;
}

/* ═══════ 角色选择下拉 ═══════ */

#driftBottleApp .db-char-select {
  position: relative;
  display: inline-block;
}
#driftBottleApp .db-char-dropdown {
  position: absolute;
  top: 100%; right: 0;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  min-width: 160px;
  max-height: 240px;
  overflow-y: auto;
  z-index: 50;
  display: none;
}
#driftBottleApp .db-char-dropdown.show {
  display: block;
}
#driftBottleApp .db-char-option {
  padding: 10px 14px;
  font-size: 13px;
  color: #3D6B82;
  cursor: pointer;
  font-weight: 300;
  letter-spacing: 0.5px;
  border-bottom: 0.5px solid #F0F0F0;
  white-space: nowrap;
}
#driftBottleApp .db-char-option:active {
  background: #F5F9FB;
}
#driftBottleApp .db-char-option.active {
  background: #E8F4F8;
  font-weight: 500;
}
#driftBottleApp .db-char-option.all {
  color: #999;
  font-style: italic;
}

/* ═══════ 空状态 ═══════ */

#driftBottleApp .db-empty {
  text-align: center;
  padding: 60px 20px;
  color: #8AB0C0;
}
#driftBottleApp .db-empty-icon {
  font-size: 48px;
  opacity: 0.5;
  margin-bottom: 12px;
}
#driftBottleApp .db-empty-text {
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 1px;
}

/* ═══════ Loading ═══════ */

#driftBottleApp .db-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  gap: 10px;
  color: #7A9BAE;
  font-size: 12px;
}
#driftBottleApp .db-loading-dots {
  display: flex;
  gap: 5px;
}
#driftBottleApp .db-loading-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: #8AB0C0;
  animation: dbDotBounce 1.2s infinite ease-in-out;
}
#driftBottleApp .db-loading-dot:nth-child(1) { animation-delay: 0s; }
#driftBottleApp .db-loading-dot:nth-child(2) { animation-delay: 0.16s; }
#driftBottleApp .db-loading-dot:nth-child(3) { animation-delay: 0.32s; }
@keyframes dbDotBounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.3; }
  40% { transform: translateY(-6px); opacity: 1; }
}

/* ═══════ 扔瓶子：写作区 ═══════ */

#driftBottleApp .db-throw-write-card {
  width: 100%;
  max-width: 320px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  border: 0.5px solid rgba(255,255,255,0.2);
}
#driftBottleApp .db-throw-textarea {
  width: 100%;
  min-height: 100px;
  background: rgba(255,255,255,0.9);
  border: none;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.7;
  color: #3A5A6A;
  resize: vertical;
  font-family: KaiTi, STKaiti, serif;
  letter-spacing: 0.5px;
  outline: none;
  box-sizing: border-box;
}
#driftBottleApp .db-throw-textarea::placeholder {
  color: #B0C8D4;
  font-style: italic;
}
#driftBottleApp .db-throw-cancel {
  flex: 1;
  padding: 8px 0;
  border-radius: 20px;
  border: 0.5px solid rgba(255,255,255,0.3);
  background: transparent;
  color: rgba(255,255,255,0.7);
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  letter-spacing: 1px;
  text-align: center;
}
#driftBottleApp .db-throw-confirm {
  flex: 2;
  padding: 8px 0;
  border-radius: 20px;
  border: none;
  background: linear-gradient(135deg, #5A9AB5, #3A7A95);
  color: #fff;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
#driftBottleApp .db-throw-confirm:active {
  opacity: 0.8;
}

/* 已扔瓶子列表 */
#driftBottleApp .db-thrown-title {
  font-size: 12px;
  color: #8AB0C0;
  padding: 6px 0 10px;
  text-align: center;
  letter-spacing: 1.5px;
}
#driftBottleApp .db-thrown-icon {
  font-size: 22px;
  flex-shrink: 0;
}
#driftBottleApp .db-thrown-content {
  flex: 1;
  min-width: 0;
}
#driftBottleApp .db-thrown-text {
  font-size: 12px;
  color: #6A8A9A;
  line-height: 1.4;
}
#driftBottleApp .db-thrown-reply-preview {
  font-size: 11px;
  color: #D498A8;
  margin-top: 3px;
  letter-spacing: 0.5px;
}
#driftBottleApp .db-thrown-time {
  font-size: 10px;
  color: #AAC8D4;
  flex-shrink: 0;
}
#driftBottleApp .db-thrown-item.has-reply {
  border-left: 2px solid rgba(212,152,168,0.4);
}

/* 浮动瓶子动画 */
#driftBottleApp .db-bottle-anim.floating {
  animation: dbFloatSlow 4s ease-in-out infinite;
}
@keyframes dbFloatSlow {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  25% { transform: translateY(-6px) rotate(1deg); }
  50% { transform: translateY(-3px) rotate(-0.5deg); }
  75% { transform: translateY(-8px) rotate(0.5deg); }
}

/* ═══════ 回信弹窗动画 ═══════ */

.db-reply-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: dbFadeIn 0.3s ease;
}
@keyframes dbFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.db-reply-card {
  background: linear-gradient(180deg, #F8F4EC, #F0E8D8);
  border-radius: 18px;
  padding: 24px 22px 20px;
  width: 300px;
  max-width: 90vw;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
  animation: dbReplyPop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
}
@keyframes dbReplyPop {
  from { transform: scale(0.5) translateY(30px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}
.db-reply-float {
  font-size: 40px;
  animation: dbFloatIn 0.6s ease-out;
}
@keyframes dbFloatIn {
  from { transform: translateY(-40px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.db-reply-title {
  font-size: 17px;
  font-weight: 500;
  color: #5A7A8A;
  letter-spacing: 2px;
  margin-top: 8px;
}
.db-reply-from {
  font-size: 13px;
  color: #A09080;
  margin: 4px 0 12px;
  letter-spacing: 1px;
}
.db-reply-text {
  font-size: 14px;
  color: #4A5A6A;
  line-height: 1.8;
  letter-spacing: 0.5px;
  padding: 14px 16px;
  background: rgba(255,255,255,0.7);
  border-radius: 12px;
  text-align: left;
  margin-bottom: 14px;
  font-family: KaiTi, STKaiti, serif;
}
.db-reply-close-btn {
  padding: 8px 32px;
  border-radius: 20px;
  border: none;
  background: #8AB8C8;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  letter-spacing: 2px;
}