/* ===== TriM3 前台登录：banner 入口 + MD3 弹窗 ===== */

/* --- banner 右上角登录/用户按钮 --- */
.tri-login-corner {
  position: absolute;
  top: 16px;
  right: 20px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 6px;
}
.hero-slider .tri-login-corner .icon-btn {
  background: rgba(0, 0, 0, 0.28);
  color: #fff;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.tri-login-entry {
  position: relative;
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.82);
  color: var(--md-sys-color-on-surface, #1d1b20);
  transition: transform 0.2s ease, background 0.2s ease;
}
.tri-login-entry:hover {
  transform: scale(1.06);
  background: #fff;
}
.tri-login-entry .tri-login-avatar {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin: 0;
}
/* 发布说说按钮：与登录头像同尺寸（32px），保持视觉协调 */
.tri-login-corner .tri-say-entry {
  width: 32px;
  height: 32px;
  font-size: 17px;
}

/* --- banner 左上角搜索（点击向右平滑延伸，按钮与输入框一体胶囊，同材质深色玻璃） --- */
.tri-search-corner {
  position: absolute;
  top: 16px;
  left: 20px;
  z-index: 3;
  display: flex;
  align-items: center;
  height: 32px;
}
.tri-search-entry {
  flex: none;
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.28);
  color: #fff;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  font-size: 17px;
  transition: background-color 0.2s ease, border-radius 0.32s cubic-bezier(0.2, 0, 0, 1), transform 0.2s ease;
}
.tri-search-entry:hover {
  background: rgba(0, 0, 0, 0.42);
  transform: scale(1.05);
}
/* 展开后按钮左侧圆角、右侧直角，与输入框连成整体胶囊 */
.tri-search-corner.is-open .tri-search-entry {
  border-radius: 999px 0 0 999px;
}
.tri-search-expand {
  display: flex;
  align-items: center;
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  white-space: nowrap;
  height: 32px;
  background: rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: 0 999px 999px 0;
  transition: max-width 0.32s cubic-bezier(0.2, 0, 0, 1), opacity 0.24s ease;
}
.tri-search-expand input {
  flex: 1;
  min-width: 0;
  width: 180px;
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: #fff;
  padding: 0 16px 0 2px;
  caret-color: rgba(255, 255, 255, 0.9);
}
.tri-search-expand input::placeholder {
  color: rgba(255, 255, 255, 0.68);
}
.tri-search-corner.is-open .tri-search-expand {
  max-width: 220px;
  opacity: 1;
}

/* --- MD3 Dialog --- */
.tri-dialog-mask {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.45);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  animation: tri-mask-in 0.18s ease;
}
.tri-dialog-mask[hidden] {
  display: none;
}
.tri-dialog {
  width: 360px;
  max-width: calc(100vw - 32px);
  background: var(--md-sys-color-surface-container-high, #ece6f0);
  color: var(--md-sys-color-on-surface, #1d1b20);
  border-radius: 28px;
  padding: 24px 24px 18px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.28);
  animation: tri-dialog-in 0.2s ease;
}
.tri-dialog h3 {
  margin: 0 0 16px;
  font-size: 22px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--md-sys-color-on-surface, #1d1b20);
}
.tri-dialog .tri-login-sub {
  margin: -8px 0 16px;
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant, #49454f);
}

/* 输入框（MD3 outlined 风格） */
.tri-field {
  position: relative;
  margin-bottom: 14px;
}
.tri-field input {
  width: 100%;
  box-sizing: border-box;
  height: 48px;
  padding: 0 14px;
  font-size: 15px;
  font-family: inherit;
  color: var(--md-sys-color-on-surface, #1d1b20);
  background: transparent;
  border-radius: 8px 8px 8px 8px;
  outline: none;
  transition: border-color 0.15s ease;
}
.tri-field input:focus {
  padding: 0 13px;

  box-shadow: 0 0 0 2px var(--md-sys-color-primary, #6750a4);
}
.tri-field label {
  position: absolute;
  left: 12px;
  top: -7px;
  padding: 0 4px;
  font-size: 11px;
  color: var(--md-sys-color-primary, #6750a4);
  background: var(--md-sys-color-surface-container-high, #ece6f0);
  pointer-events: none;
}

/* 记住我 + 错误提示 */
.tri-login-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 2px 0 12px;
}
.tri-check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant, #49454f);
  cursor: pointer;
}
.tri-check input {
  accent-color: var(--md-sys-color-primary, #6750a4);
}
.tri-login-error {
  min-height: 18px;
  font-size: 12.5px;
  color: var(--md-sys-color-error, #b3261e);
  margin: 0 0 8px;
}

/* 按钮 */
.tri-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 6px;
}
.tri-btn {
  border: none;
  border-radius: 999px;
  padding: 9px 22px;
  font-size: 14px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: filter 0.15s ease, background 0.15s ease;
}
.tri-btn:disabled {
  opacity: 0.55;
  cursor: default;
}
.tri-btn-text {
  background: transparent;
  color: var(--md-sys-color-primary, #6750a4);
}
.tri-btn-text:hover {
  background: color-mix(in srgb, var(--md-sys-color-primary, #6750a4) 10%, transparent);
}
.tri-btn-filled {
  background: var(--md-sys-color-primary, #6750a4);
  color: var(--md-sys-color-on-primary, #fff);
}
.tri-btn-filled:hover {
  filter: brightness(1.06);
}

/* ===== 说说发布弹窗（MD3 Dialog） ===== */
.tri-say-dialog {
  width: 580px;
  max-width: calc(100vw - 32px);
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  padding: 22px 24px 18px;
  background: var(--md-sys-color-surface-container-high, #ece6f0);
  border-radius: 28px;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.4) inset;
}
.tri-say-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.tri-say-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  flex: none;
  background: var(--md-sys-color-surface-container-highest, #e6e0e9);
}
.tri-say-av-fallback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-primary, #6750a4);
  font-size: 20px;
}
.tri-say-head-txt {
  flex: 1;
  min-width: 0;
}
.tri-say-head h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--md-sys-color-on-surface, #1d1b20);
}
.tri-say-sub {
  font-size: 12.5px;
  color: var(--md-sys-color-on-surface-variant, #49454f);
}
.tri-say-close {
  flex: none;
  width: 34px;
  height: 34px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--md-sys-color-on-surface-variant, #49454f);
  font-size: 18px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}
.tri-say-close:hover {
  background: var(--md-sys-color-surface-container-highest, #e6e0e9);
}
.tri-say-body {
  position: relative;
}
.tri-say-ta {
  width: 100%;
  box-sizing: border-box;
  min-height: 104px;
  padding: 14px 16px;
  font-size: 15px;
  font-family: inherit;
  line-height: 1.65;
  color: var(--md-sys-color-on-surface, #1d1b20);
  background: var(--md-sys-color-surface-container-lowest, #fff);
  border: none;
  border-radius: 16px 16px 8px 16px;
  outline: none;
  resize: vertical;
  transition: box-shadow 0.15s ease, background 0.15s ease;
}
.tri-say-ta:focus {
  box-shadow: 0 0 0 2px var(--md-sys-color-primary, #6750a4);
}
.tri-say-ta::placeholder {
  color: var(--md-sys-color-on-surface-variant, #49454f);
  opacity: 0.7;
}
.tri-say-ta:focus {
  background: #fff;
  box-shadow: 0 0 0 2px var(--md-sys-color-primary, #6750a4);
}
.tri-say-counter {
  position: absolute;
  right: 10px;
  bottom: 8px;
  font-size: 11px;
  color: var(--md-sys-color-outline, #79747e);
  pointer-events: none;
  background: var(--md-sys-color-surface-container-lowest, #fff);
  padding: 0 4px;
  border-radius: 6px;
}
.tri-say-imgs {
  margin-top: 12px;
}
.tri-say-imgs-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant, #49454f);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 999px;
  transition: background 0.15s ease, color 0.15s ease;
  user-select: none;
}
.tri-say-imgs-label:hover {
  background: var(--md-sys-color-surface-container-highest, #e6e0e9);
}
.tri-say-imgs-label i {
  font-size: 17px;
  color: var(--md-sys-color-primary, #6750a4);
}
.tri-say-imgs-label.is-active {
  color: var(--md-sys-color-primary, #6750a4);
  background: color-mix(in srgb, var(--md-sys-color-primary, #6750a4) 10%, transparent);
}
.tri-say-imgs-box {
  margin-top: 8px;
}
.tri-say-ta-sm {
  min-height: 56px;
  font-size: 13.5px;
  border-radius: 14px;
}
.tri-say-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
}
.tri-say-foot .tri-dialog-actions {
  margin-top: 0;
}

/* 已登录用户菜单 */
.tri-user-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}
.tri-user-head img {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--md-sys-color-surface-container-highest, #e6e0e9);
}
.tri-user-head .tri-user-name {
  font-size: 16px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface, #1d1b20);
}
.tri-user-head .tri-user-meta {
  font-size: 12px;
  color: var(--md-sys-color-on-surface-variant, #49454f);
}
.tri-user-menu {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.tri-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  box-sizing: border-box;
  border: none;
  background: transparent;
  color: var(--md-sys-color-on-surface, #1d1b20);
  font-size: 14.5px;
  font-family: inherit;
  text-align: left;
  text-decoration: none;
  padding: 12px 14px;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.15s ease;
}
.tri-menu-item:hover {
  background: var(--md-sys-color-surface-container-high, #e6e0e9);
}
.tri-menu-item i {
  font-size: 20px;
  color: var(--md-sys-color-on-surface-variant, #49454f);
  width: 22px;
  text-align: center;
}
.tri-menu-item.is-danger {
  color: var(--md-sys-color-error, #b3261e);
}
.tri-menu-item.is-danger i {
  color: var(--md-sys-color-error, #b3261e);
}

/* --- 已登录：头像旁右键菜单式小弹窗 --- */
.tri-login-menu {
  position: fixed;
  z-index: 2100;
  width: 224px;
  max-width: calc(100vw - 16px);
  box-sizing: border-box;
  background: var(--md-sys-color-surface-container, #f3edf7);
  color: var(--md-sys-color-on-surface, #1d1b20);
  border-radius: 12px;
  padding: 6px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.24);
  opacity: 0;
  transform: scale(0.95) translateY(-4px);
  transform-origin: top right;
  pointer-events: none;
  transition: opacity 0.12s ease, transform 0.12s ease;
}
.tri-login-menu.is-open {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.tri-menu-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px 6px;
}
.tri-menu-head img,
.tri-menu-av-fallback {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--md-sys-color-primary-container, #eaddff);
  color: var(--md-sys-color-on-primary-container, #21005d);
  font-size: 15px;
  font-weight: 500;
}
.tri-menu-username {
  font-size: 14px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface, #1d1b20);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tri-menu-sep {
  height: 1px;
  margin: 4px 8px;
  background: var(--md-sys-color-outline-variant, #cac4d0);
}
.tri-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  box-sizing: border-box;
  border: none;
  background: transparent;
  color: var(--md-sys-color-on-surface, #1d1b20);
  font-size: 14px;
  font-family: inherit;
  text-align: left;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.12s ease;
}
.tri-menu-item:hover {
  background: var(--md-sys-color-surface-container-high, #ece6f0);
}
.tri-menu-item i {
  font-size: 18px;
  color: var(--md-sys-color-on-surface-variant, #49454f);
  width: 20px;
  text-align: center;
}
.tri-menu-item.is-danger {
  color: var(--md-sys-color-error, #b3261e);
}
.tri-menu-item.is-danger i {
  color: var(--md-sys-color-error, #b3261e);
}
.tri-menu-item:disabled {
  opacity: 0.55;
  cursor: default;
}

@keyframes tri-mask-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes tri-dialog-in {
  from { opacity: 0; transform: translateY(14px) scale(0.97); }
  to { opacity: 1; transform: none; }
}


/* ===== 移动端适配：banner 角按钮触控目标放大（MD3 触控 ≥44px 折中 38px） ===== */
@media (max-width: 768px) {
  .tri-login-corner {
    top: 12px;
    right: 14px;
    gap: 8px;
  }
  .tri-search-corner {
    top: 12px;
    left: 14px;
  }
  .tri-login-entry,
  .tri-login-corner .tri-say-entry {
    width: 38px;
    height: 38px;
    font-size: 19px;
  }
  .tri-search-entry {
    width: 38px;
    height: 38px;
    font-size: 19px;
  }
  .tri-search-corner.is-open .tri-search-input {
    height: 38px;
    font-size: 14px;
    padding-left: 44px;
    padding-right: 14px;
  }
  /* 已登录头像菜单弹窗：移动端贴近触发点，宽度自适应 */
  .tri-login-menu {
    width: 220px;
  }
  /* 登录/发布弹窗移动端：内边距收紧、圆角略收 */
  .tri-dialog {
    width: auto;
    padding: 20px 20px 16px;
    border-radius: 24px;
  }
  .tri-dialog h3 {
    font-size: 20px;
    margin-bottom: 12px;
  }
  .tri-dialog .tri-login-sub {
    margin: -6px 0 14px;
  }
}