/* ============================
   计算机SIG 文件传输助手 - 动漫风格
   高木同学主题色调
   ============================ */

:root {
  --pink-50: #FFF0F5;
  --pink-100: #FFE4EF;
  --pink-200: #FFB7D5;
  --pink-300: #FF8FBC;
  --pink-400: #FF69A0;
  --pink-500: #E84F8C;
  --pink-600: #C93D73;
  --cream: #FFF8F0;
  --warm-white: #FFFAF6;
  --text-primary: #4A3040;
  --text-secondary: #7A6070;
  --text-muted: #A090A0;
  --card-bg: rgba(255, 248, 240, 0.85);
  --card-border: rgba(255, 183, 213, 0.4);
  --shadow-soft: 0 8px 32px rgba(232, 79, 140, 0.12);
  --shadow-hover: 0 12px 40px rgba(232, 79, 140, 0.2);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* リセット */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', 'M PLUS Rounded 1c', sans-serif;
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--pink-50);
}

/* 背景轮播 */
.bg-slideshow {
  position: fixed;
  inset: 0;
  z-index: 0;
}

.bg-slideshow .slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.bg-slideshow .slide.active {
  opacity: 1;
}

.bg-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg,
      rgba(255, 240, 245, 0.82) 0%,
      rgba(255, 228, 239, 0.78) 40%,
      rgba(255, 248, 240, 0.8) 100%);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

/* 访问验证页 */
.access-gate {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: linear-gradient(135deg,
      rgba(255, 240, 245, 0.95) 0%,
      rgba(255, 228, 239, 0.92) 40%,
      rgba(255, 248, 240, 0.95) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.access-gate.hidden {
  display: none;
}

.access-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 48px 40px;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: 0 24px 64px rgba(232, 79, 140, 0.15);
  animation: scaleIn 0.35s ease;
}

.access-title {
  font-family: 'M PLUS Rounded 1c', sans-serif;
  font-size: 1.6rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--pink-500), var(--pink-300));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

.access-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.access-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--pink-200);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--warm-white);
  outline: none;
  transition: var(--transition);
  margin-bottom: 16px;
  text-align: center;
}

.access-input:focus {
  border-color: var(--pink-400);
  box-shadow: 0 0 0 3px rgba(232, 79, 140, 0.1);
}

.access-btn {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.access-btn:hover {
  box-shadow: 0 6px 20px rgba(232, 79, 140, 0.35);
  transform: translateY(-1px);
}

.access-error {
  color: #E53E3E;
  font-size: 0.82rem;
  margin-top: 12px;
  animation: shake 0.4s ease;
}

@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  20%,
  60% {
    transform: translateX(-6px);
  }

  40%,
  80% {
    transform: translateX(6px);
  }
}

/* 页面三栏布局 */
.page-layout {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  gap: 24px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px 20px 80px;
  min-height: 100vh;
  align-items: flex-start;
}

/* 主容器 */
.main-container {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

/* 侧边栏 */
.sidebar {
  width: 260px;
  flex-shrink: 0;
  position: sticky;
  top: 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-self: flex-start;
}

.sidebar-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
}

.sidebar-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.sidebar-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.sidebar-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.sidebar-card:hover .sidebar-image img {
  transform: scale(1.05);
}

.sidebar-content {
  padding: 20px;
}

.sidebar-title {
  font-family: 'M PLUS Rounded 1c', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--pink-500);
  margin-bottom: 12px;
}

.sidebar-text {
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* 时钟卡片 */
.clock-display {
  text-align: center;
  padding: 4px 0;
}

.clock-date {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.clock-time {
  font-family: 'M PLUS Rounded 1c', monospace;
  font-size: 1.3rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--pink-500), var(--pink-300));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.08em;
}

/* 内网版列表样式 (社团统计与荣誉) */
.club-stats {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--card-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.stat-item strong {
  color: var(--pink-500);
}

.honor-list {
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.honor-list li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
  position: relative;
  list-style: none;
}

.honor-list li::before {
  content: '🏆';
  position: absolute;
  left: -22px;
  font-size: 0.9rem;
}

/* 安全通告横幅 */
.security-banner {
  margin-bottom: 24px;
  background: rgba(255, 230, 230, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 100, 100, 0.3);
  border-radius: var(--radius);
  padding: 16px 20px;
  color: #C53030;
  font-size: 0.9rem;
  line-height: 1.5;
  box-shadow: var(--shadow-soft);
}

.intranet-banner {
  background: rgba(230, 242, 255, 0.7) !important;
  border-color: rgba(100, 180, 255, 0.3) !important;
  color: #2B6CB0 !important;
}

.intranet-banner strong {
  color: #2C5282 !important;
}

.security-banner-inner {
  display: flex;
  align-items: center;
  gap: 10px;
}

.security-icon {
  font-size: 1.2rem;
}

/* 标题栏 */
.header {
  text-align: center;
  margin-bottom: 36px;
}

.header-inner {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow-soft);
}

.site-title {
  font-family: 'M PLUS Rounded 1c', 'Noto Sans SC', sans-serif;
  font-size: 2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--pink-500), var(--pink-300));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.3;
}

.site-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 8px;
}

/* 上传区域 */
.upload-zone {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 2px dashed var(--pink-200);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-soft);
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--pink-400);
  background: rgba(255, 240, 245, 0.92);
}

.upload-icon-text {
  font-family: 'M PLUS Rounded 1c', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--pink-500);
  margin-bottom: 8px;
}

.upload-hint {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* 文件卡片 */
.file-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.file-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  animation: fadeInUp 0.4s ease backwards;
}

.file-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-hover);
}

.file-info {
  flex: 1;
  min-width: 0;
}

.file-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-meta {
  display: flex;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.file-ttl {
  color: var(--pink-400);
}

.file-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* 按钮通用 */
.btn {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
  background: var(--pink-100);
  color: var(--pink-500);
}

.btn:hover:not(:disabled) {
  background: var(--pink-200);
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-download {
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  color: #fff;
}

.btn-download:hover {
  box-shadow: 0 4px 12px rgba(232, 79, 140, 0.3);
  transform: translateY(-1px);
}

.btn-delete {
  background: #fff;
  border: 1px solid var(--pink-200);
  color: var(--pink-500);
}

.btn-delete:hover {
  background: var(--pink-50);
  border-color: var(--pink-400);
}

.btn-share {
  background: var(--pink-50);
  border: 1px solid var(--pink-200);
  color: var(--pink-500);
}

.btn-share:hover {
  background: var(--pink-100);
  border-color: var(--pink-400);
}

.btn-refresh,
.btn-page {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--pink-500);
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-refresh:hover,
.btn-page:hover:not(:disabled) {
  background: var(--pink-100);
  transform: translateY(-1px);
}

/* 进度条 */
.progress-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.progress-item {
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  border: 1px solid var(--card-border);
}

.progress-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.progress-item-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  max-width: 150px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.progress-item-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.btn-cancel-upload {
  background: var(--pink-100);
  color: var(--pink-500);
  border: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.btn-cancel-upload:hover {
  background: var(--pink-500);
  color: #fff;
}

.progress-bar-container {
  height: 6px;
  background: var(--pink-100);
  border-radius: 3px;
  margin-top: 6px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--pink-400), var(--pink-500));
  width: 0%;
  transition: width 0.3s ease;
}

/* 固定底部 - 增强可见性 */
.fixed-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--card-border);
  padding: 12px 0;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.05);
}

.fixed-footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-sep {
  opacity: 0.4;
}

/* 弹窗样式 */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(40, 30, 40, 0.4);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.modal-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px;
  max-width: 480px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.modal-card h3 {
  color: var(--pink-500);
  margin-bottom: 8px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

.btn-cancel {
  background: #eee;
  color: #666;
}

.btn-danger {
  background: #E53E3E;
  color: #fff;
}

/* 安全声明弹窗细节 */
.security-content {
  line-height: 1.6;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.security-content p {
  margin-bottom: 12px;
}

.security-warning {
  color: #E53E3E;
  font-weight: bold;
  padding: 12px;
  background: rgba(229, 62, 62, 0.08);
  border-radius: 8px;
  border-left: 4px solid #E53E3E;
}

/* 分享弹窗细节 */
.share-modal {
  text-align: center;
}

.share-hint {
  font-size: 0.82rem;
  color: var(--pink-500);
  background: var(--pink-50);
  padding: 8px;
  border-radius: 8px;
  margin: 12px 0;
  border: 1px dashed var(--pink-300);
}

.qrcode-container {
  display: flex;
  justify-content: center;
  padding: 16px;
  background: #fff;
  border-radius: 12px;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.05);
  margin-top: 16px;
}

.qrcode-container canvas,
.qrcode-container img {
  border-radius: 4px;
}

/* 通知 */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.9rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  animation: slideInRight 0.3s ease;
}

.toast.success {
  background: #48BB78;
}

.toast.error {
  background: #E53E3E;
}

.toast.info {
  background: #4299E1;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }

  to {
    transform: translateX(0);
  }
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
}

.page-info {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* 通用显示控制 - 由 Body Class 驱动 */
.intranet-only,
.public-only {
  display: none !important;
}

body.is-intranet .intranet-only {
  display: block !important;
}

body.is-intranet div.intranet-only {
  display: flex !important;
}

body.is-public .public-only {
  display: block !important;
}

/* 交互增强 */
.link-btn {
  color: var(--pink-500);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.link-btn:hover {
  color: var(--pink-400);
}

.reset-key-wrapper {
  margin-top: 16px;
  text-align: center;
}

.btn-text {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: var(--transition);
}

.btn-text:hover {
  color: var(--pink-500);
  background: var(--pink-50);
}

/* 文本提示 */
.empty-text,
.loading-text {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* 老师列表 */
.teacher-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.teacher-item {
  background: var(--pink-50);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-weight: 500;
}