/* ============================================
   毕业纪念网站 — 全局样式
   ============================================ */

/* ----- CSS 变量：浅色 / 深色 ----- */
:root {
  --bg:              #f5f5f7;
  --card-bg:         #ffffff;
  --text:            #1d1d1f;
  --text-dim:        #86868b;
  --border:          #e5e5ea;
  --shadow:          0 2px 16px rgba(0,0,0,0.06);
  --timer-bg:        #f5f5f7;
  --timer-num:       #1d1d1f;
  --btn-hover-shadow:0 8px 30px rgba(0,0,0,0.12);
  --sidebar-bg:      #ffffff;
  --sidebar-text:    #1d1d1f;
  --sidebar-hover:   #f5f5f7;
  --sidebar-active:  #e8e8ed;
  --topbar-bg:       rgba(255,255,255,0.85);
  --topbar-blur:      blur(16px);
  --overlay-bg:       rgba(0,0,0,0.7);
  --hamburger-color:  #1d1d1f;
  --accent:           #0071e3;
}

[data-theme="dark"] {
  --bg:              #1c1c1e;
  --card-bg:         #2c2c2e;
  --text:            #f5f5f7;
  --text-dim:        #8e8e93;
  --border:          #3a3a3c;
  --shadow:          0 2px 16px rgba(0,0,0,0.3);
  --timer-bg:        #3a3a3c;
  --timer-num:       #f5f5f7;
  --btn-hover-shadow:0 8px 30px rgba(0,0,0,0.5);
  --sidebar-bg:      #2c2c2e;
  --sidebar-text:    #f5f5f7;
  --sidebar-hover:   #3a3a3c;
  --sidebar-active:  #48484a;
  --topbar-bg:       rgba(28,28,30,0.85);
  --topbar-blur:      blur(16px);
  --overlay-bg:       rgba(0,0,0,0.85);
  --hamburger-color:  #f5f5f7;
  --accent:           #3399ff;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background 0.4s, color 0.4s;
}

/* ----- 顶部导航栏 ----- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
  background: var(--topbar-bg);
  backdrop-filter: var(--topbar-blur);
  -webkit-backdrop-filter: var(--topbar-blur);
  border-bottom: 1px solid var(--border);
}

.hamburger {
  width: 40px; height: 40px;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  gap: 5px; cursor: pointer; z-index: 200;
  background: none; border: none;
  padding: 6px; border-radius: 10px;
  transition: background 0.2s;
}
.hamburger:hover { background: var(--sidebar-hover); }
.hamburger span {
  display: block; width: 20px; height: 2px;
  background: var(--hamburger-color);
  border-radius: 2px; transition: all 0.3s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.theme-toggle {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; border: none; background: none;
  border-radius: 10px; font-size: 20px;
  transition: background 0.2s;
}
.theme-toggle:hover { background: var(--sidebar-hover); }

/* ----- 侧边菜单 ----- */
.sidebar-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.35); z-index: 150;
  opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.sidebar-overlay.open { opacity: 1; pointer-events: auto; }

.sidebar {
  position: fixed; top: 0; left: 0;
  width: 260px; height: 100vh; z-index: 160;
  background: var(--sidebar-bg);
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
  display: flex; flex-direction: column;
  padding: 80px 0 30px;
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}
.sidebar.open { transform: translateX(0); }

.sidebar a {
  display: flex; align-items: center; gap: 14px;
  padding: 15px 28px;
  color: var(--text); text-decoration: none;
  font-size: 17px; font-weight: 500;
  transition: all 0.15s;
  border-left: 3px solid transparent;
}
.sidebar a:hover  { background: var(--sidebar-hover); }
.sidebar a.active { background: var(--sidebar-active); border-left-color: var(--accent); font-weight: 600; }
.sidebar .icon { font-size: 20px; width: 28px; text-align: center; }
.sidebar .divider { margin: 10px 20px; border: none; border-top: 1px solid var(--border); }

/* ----- 主内容容器 ----- */
.main-content {
  min-height: 100vh;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  padding: 80px 20px 40px;
}

/* ----- 卡片 ----- */
.card {
  background: var(--card-bg);
  border-radius: 24px; padding: 44px 36px 34px;
  max-width: 460px; width: 100%;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  text-align: center;
  transition: background 0.4s, box-shadow 0.4s, border-color 0.4s;
}

.card-wide {
  max-width: 800px;
}

.title {
  font-size: 28px; font-weight: 700;
  letter-spacing: 2px; margin-bottom: 6px;
}

.subtitle {
  font-size: 13px; color: var(--text-dim);
  margin-bottom: 28px; letter-spacing: 1px;
}

/* ----- 卡片内计时器 ----- */
.card-timer {
  margin-bottom: 28px; padding: 18px 12px;
  background: var(--timer-bg); border-radius: 16px;
  transition: background 0.4s;
}
.card-timer-label {
  font-size: 12px; color: var(--text-dim);
  margin-bottom: 10px; letter-spacing: 2px;
}
.card-timer-digits {
  display: flex; justify-content: center; gap: 4px; flex-wrap: wrap;
  font-size: 24px; font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-family: "SF Mono", "Cascadia Code", "Consolas", monospace;
}
.card-timer-digits .unit { display: flex; align-items: baseline; }
.card-timer-digits .num {
  background: var(--card-bg); color: var(--timer-num);
  border-radius: 8px; padding: 4px 9px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.card-timer-digits .unit em {
  font-style: normal; font-size: 12px; font-weight: 400;
  color: var(--text-dim); margin-left: 3px;
}

/* ----- 按钮（主页用） ----- */
.home-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 10px;
}

.btn {
  flex: 1; padding: 26px 14px;
  border-radius: 16px; border: 1.5px solid var(--border);
  cursor: pointer; font-size: 17px; font-weight: 600;
  display: flex; flex-direction: column; align-items: center;
  gap: 8px; text-decoration: none;
  transition: all 0.2s;
  background: var(--card-bg); color: var(--text);
}
.btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--btn-hover-shadow);
}
.btn:active { transform: translateY(0); }
.btn .btn-icon { font-size: 34px; }

.btn-video:hover  { background: #fff2f4; border-color: #f5576c; }
.btn-photos:hover { background: #f0f7ff; border-color: #4facfe; }
.btn-random:hover { background: #eefff5; border-color: #43e97b; }
.btn-wall:hover { background: #fff4ec; border-color: #ff9f5a; }
.btn-book:hover { background: #f8f3ff; border-color: #8b7dff; }
.btn-timeline:hover { background: #effff7; border-color: #20b486; }
.btn-feedback:hover { background: #fff7e8; border-color: #e7a93b; }
.btn-about:hover { background: #f4f6f9; border-color: #7c8ba1; }

[data-theme="dark"] .btn-video:hover  { background: #3d2026; }
[data-theme="dark"] .btn-photos:hover { background: #1a2d3d; }
[data-theme="dark"] .btn-random:hover { background: #1a3324; }
[data-theme="dark"] .btn-wall:hover { background: #3a2a1d; }
[data-theme="dark"] .btn-book:hover { background: #2a243d; }
[data-theme="dark"] .btn-timeline:hover { background: #17362d; }
[data-theme="dark"] .btn-feedback:hover { background: #3a311d; }
[data-theme="dark"] .btn-about:hover { background: #2c3138; }

/* ----- 返回按钮（子页面用） ----- */
.back-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--text-dim); text-decoration: none;
  font-size: 14px; margin-bottom: 24px;
  transition: color 0.2s;
}
.back-link:hover { color: var(--accent); }

/* ----- 视频播放器 ----- */
.video-wrapper {
  border-radius: 14px; overflow: hidden;
  margin-bottom: 20px;
  background: #000;
}
.video-wrapper video {
  width: 100%; display: block;
  max-height: 480px;
}

.video-list {
  display: flex; gap: 10px; flex-wrap: wrap;
  justify-content: center;
}
.video-list button {
  padding: 10px 20px;
  border-radius: 10px; border: 1px solid var(--border);
  background: var(--card-bg); color: var(--text);
  font-size: 14px; cursor: pointer;
  transition: all 0.2s;
}
.video-list button:hover,
.video-list button.active {
  background: var(--accent); color: #fff; border-color: var(--accent);
}

/* ----- 照片网格 ----- */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-top: 20px;
}
.photo-grid img {
  width: 100%; aspect-ratio: 1;
  object-fit: cover; border-radius: 12px;
  cursor: pointer;
  transition: transform 0.25s, box-shadow 0.25s;
}
.photo-grid img:hover {
  transform: scale(1.04);
  box-shadow: 0 8px 25px rgba(0,0,0,0.18);
}

/* ----- 关于页 ----- */
.about-section {
  text-align: left;
  line-height: 1.8;
  color: var(--text-dim);
  font-size: 15px;
}
.about-section h3 {
  color: var(--text);
  font-size: 18px;
  margin: 20px 0 8px;
}
.about-section h3:first-child { margin-top: 0; }

/* ----- 弹窗（照片查看器） ----- */
.overlay {
  display: none; position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--overlay-bg); z-index: 500;
  justify-content: center; align-items: center; flex-direction: column;
}
.overlay.active { display: flex; }
.overlay img {
  max-width: 90vw; max-height: 75vh;
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.overlay .close-btn {
  margin-top: 20px; padding: 10px 36px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 10px; color: #fff;
  font-size: 15px; cursor: pointer;
  transition: background 0.2s;
}
.overlay .close-btn:hover { background: rgba(255,255,255,0.28); }
.overlay .no-photo { color: #fff; font-size: 17px; opacity: 0.7; }

/* ----- 页脚 ----- */
.footer {
  margin-top: 24px;
  font-size: 12px; color: var(--text-dim);
}

/* ----- 响应式 ----- */
@media (max-width: 420px) {
  .card { padding: 28px 18px 22px; }
  .title { font-size: 22px; }
  .btn { padding: 18px 10px; font-size: 15px; }
  .btn .btn-icon { font-size: 26px; }
  .card-timer-digits { font-size: 20px; }
  .photo-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
}


/* ============================================
   粒子特效（纸飞机）
   ============================================ */
.particle-canvas {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none; z-index: 0;
}

/* ============================================
   弹幕
   ============================================ */
.danmaku-stage {
  position: fixed; top: 60px; left: 0; right: 0;
  height: calc(100vh - 60px);
  pointer-events: none; z-index: 10;
  overflow: hidden;
}
.danmaku-item {
  position: absolute; white-space: nowrap;
  font-size: 18px; font-weight: 600;
  padding: 6px 16px; border-radius: 20px;
  animation: danmakuFly linear forwards;
  text-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
@keyframes danmakuFly {
  from { transform: translateX(100vw); }
  to   { transform: translateX(-100%); }
}

/* ============================================
   设置面板
   ============================================ */
.settings-gear {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; border: none; background: none;
  border-radius: 10px; font-size: 20px;
  transition: background 0.2s, transform 0.4s;
}
.settings-gear:hover { background: var(--sidebar-hover); }
.settings-gear.open { transform: rotate(90deg); }

.settings-panel {
  position: fixed; top: 0; right: 0;
  width: 300px; height: 100vh; z-index: 170;
  background: var(--sidebar-bg);
  border-left: 1px solid var(--border);
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
  display: flex; flex-direction: column;
  padding: 80px 24px 30px;
}
.settings-panel.open { transform: translateX(0); }

.settings-panel h3 {
  font-size: 18px; margin-bottom: 24px;
  color: var(--text);
}

.settings-group {
  display: flex; flex-direction: column; gap: 14px;
}

.setting-row {
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.setting-label {
  display: flex; align-items: center; gap: 10px;
  font-size: 15px; color: var(--text);
}
.setting-label .s-icon { font-size: 18px; }

/* Toggle Switch */
.toggle-switch {
  position: relative; width: 48px; height: 28px;
  flex-shrink: 0;
}
.toggle-switch input {
  opacity: 0; width: 0; height: 0;
}
.toggle-slider {
  position: absolute; cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--border); border-radius: 14px;
  transition: 0.3s;
}
.toggle-slider::before {
  content: ""; position: absolute;
  height: 22px; width: 22px; left: 3px; bottom: 3px;
  background: #fff; border-radius: 50%;
  transition: 0.3s; box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.toggle-switch input:checked + .toggle-slider {
  background: var(--accent);
}
.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(20px);
}

/* ============================================
   同学录
   ============================================ */
.classmate-input-row {
  display: flex; gap: 10px; margin-bottom: 10px;
}
.classmate-input-row input {
  flex: 1; padding: 12px 14px;
  border-radius: 12px;
  border: 1.5px solid var(--border);
  background: var(--bg); color: var(--text);
  font-size: 14px; font-family: inherit; outline: none;
}
.classmate-input-row input:focus { border-color: var(--accent); }

.classmate-list {
  display: flex; flex-direction: column; gap: 12px;
}
.classmate-item {
  background: var(--bg); border-radius: 14px;
  padding: 16px 18px; text-align: left;
}
.classmate-item .cm-header {
  display: flex; justify-content: space-between;
  align-items: baseline; margin-bottom: 6px;
}
.classmate-item .cm-name {
  font-weight: 700; font-size: 16px; color: var(--accent);
}
.classmate-item .cm-time {
  font-size: 12px; color: var(--text-dim);
}
.classmate-item .cm-content {
  font-size: 15px; line-height: 1.6; color: var(--text);
  white-space: pre-wrap; word-break: break-word;
}

/* ============================================
   班级大事记 / 时间轴
   ============================================ */
.timeline {
  position: relative; padding-left: 30px;
  text-align: left;
}
.timeline::before {
  content: ""; position: absolute;
  left: 15px; top: 0; bottom: 0;
  width: 2px; background: var(--border);
}
.timeline-item {
  position: relative; margin-bottom: 28px;
}
.timeline-item::before {
  content: ""; position: absolute;
  left: -22px; top: 4px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--card-bg);
  z-index: 1;
}
.timeline-date {
  font-size: 13px; font-weight: 700;
  color: var(--accent); margin-bottom: 4px;
}
.timeline-title {
  font-size: 16px; font-weight: 600;
  color: var(--text); margin-bottom: 4px;
}
.timeline-desc {
  font-size: 14px; color: var(--text-dim);
  line-height: 1.6;
}

/* ============================================
   设置面板遮罩
   ============================================ */
.settings-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.35); z-index: 165;
  opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.settings-overlay.open { opacity: 1; pointer-events: auto; }


/* ============================================
   同学录资料页面（新版）
   ============================================ */
.profile-card {
  background: var(--bg); border-radius: 16px;
  padding: 20px; text-align: left; margin-bottom: 14px;
  cursor: pointer; transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid transparent;
}
.profile-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  border-color: var(--accent);
}
.profile-card .pf-name {
  font-size: 18px; font-weight: 700; color: var(--accent);
}
.profile-card .pf-motto {
  font-size: 14px; color: var(--text-dim);
  margin-top: 4px; font-style: italic;
}
.profile-card .pf-tags {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px;
}
.profile-card .pf-tag {
  font-size: 12px; padding: 3px 10px;
  border-radius: 12px; background: var(--card-bg);
  color: var(--text-dim); border: 1px solid var(--border);
}

/* 资料详情弹窗 */
.profile-modal {
  display: none; position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6); z-index: 400;
  justify-content: center; align-items: center;
  padding: 20px;
}
.profile-modal.active { display: flex; }
.profile-modal-content {
  background: var(--card-bg); border-radius: 20px;
  padding: 30px; max-width: 500px; width: 100%;
  max-height: 85vh; overflow-y: auto;
  border: 1px solid var(--border);
}
.profile-modal-content h2 {
  font-size: 22px; color: var(--accent); margin-bottom: 4px;
}
.profile-modal-content .pf-fields { margin-top: 18px; }
.pf-field {
  display: flex; padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.pf-field .pf-f-label {
  color: var(--text-dim); width: 100px; flex-shrink: 0;
}
.pf-field .pf-f-value { color: var(--text); }

.profile-modal-close {
  margin-top: 16px; width: 100%;
  padding: 10px; border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg); color: var(--text);
  font-size: 15px; cursor: pointer;
}

/* 同学录编辑表单 */
.edit-form label {
  display: block; font-size: 13px; color: var(--text-dim);
  margin-top: 12px; margin-bottom: 4px;
}
.edit-form input {
  width: 100%; padding: 10px 12px;
  border-radius: 10px; border: 1.5px solid var(--border);
  background: var(--bg); color: var(--text);
  font-size: 14px; font-family: inherit; outline: none;
}
.edit-form input:focus { border-color: var(--accent); }

/* 密钥输入区 */
.key-auth-area {
  text-align: center; padding: 10px 0;
}
.key-auth-area input {
  padding: 10px 14px; border-radius: 10px;
  border: 1.5px solid var(--border);
  background: var(--bg); color: var(--text);
  font-size: 14px; font-family: inherit; outline: none;
  width: 200px; text-align: center;
}
.key-auth-area input:focus { border-color: var(--accent); }

/* ============================================
   管理员后台
   ============================================ */
.admin-tabs {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 20px;
}
.admin-tab {
  padding: 8px 18px; border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg); color: var(--text);
  font-size: 14px; cursor: pointer; transition: all 0.2s;
}
.admin-tab:hover, .admin-tab.active {
  background: var(--accent); color: #fff; border-color: var(--accent);
}
.admin-table {
  width: 100%; border-collapse: collapse;
  font-size: 14px;
}
.admin-table th, .admin-table td {
  padding: 10px 12px; text-align: left;
  border-bottom: 1px solid var(--border);
}
.admin-table th { color: var(--text-dim); font-weight: 600; }
.admin-table td { color: var(--text); }
.admin-delete-btn {
  padding: 4px 12px; border-radius: 6px;
  border: 1px solid #f5576c; background: transparent;
  color: #f5576c; font-size: 12px; cursor: pointer;
  transition: all 0.2s;
}
.admin-delete-btn:hover { background: #f5576c; color: #fff; }

.key-gen-row {
  display: flex; gap: 8px; align-items: center;
  margin-bottom: 12px;
}
.key-gen-row input {
  flex: 1; padding: 10px 12px; border-radius: 10px;
  border: 1.5px solid var(--border);
  background: var(--bg); color: var(--text);
  font-size: 14px; font-family: inherit; outline: none;
}
.key-gen-btn {
  padding: 10px 20px; border-radius: 10px;
  border: none; background: var(--accent); color: #fff;
  font-size: 14px; font-weight: 600; cursor: pointer;
}

/* ============================================
   站长留言
   ============================================ */
.feedback-sent {
  text-align: center; padding: 30px 0; color: var(--accent);
  font-size: 16px; font-weight: 600;
}

/* ============================================
   弹幕发送开关在设置中的样式
   （复用现有 .setting-row / .toggle-switch 样式）
   ============================================ */


/* ============================================
   Toast 通知
   ============================================ */
.toast-container {
  position: fixed; top: 80px; right: 20px;
  z-index: 9999; display: flex; flex-direction: column;
  gap: 8px; pointer-events: none;
}
.toast {
  background: var(--card-bg); color: var(--text);
  padding: 12px 20px; border-radius: 14px;
  font-size: 14px; font-weight: 500;
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
  border: 1px solid var(--border);
  pointer-events: auto;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.5s forwards;
  max-width: 340px;
}
.toast.success { border-left: 4px solid #43e97b; }
.toast.error   { border-left: 4px solid #f5576c; }
.toast.info    { border-left: 4px solid var(--accent); }

@keyframes toastIn  { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(40px); } }


/* ============================================
   响应式增强
   ============================================ */
@media (max-width: 768px) {
  .card { max-width: 100% !important; padding: 28px 20px 22px !important; }
  .card-wide { max-width: 100% !important; }
  .title { font-size: 22px !important; }
  .btn { padding: 16px 10px !important; font-size: 15px !important; }
  .btn .btn-icon { font-size: 26px !important; }
  .home-grid { gap: 8px !important; }
  .card-timer-digits { font-size: 18px !important; gap: 2px !important; }
  .card-timer-digits .num { padding: 3px 6px !important; }
  .sidebar { width: 240px !important; }
  .settings-panel { width: 260px !important; }
  .topbar { padding: 10px 14px !important; }
  .cm-grid { grid-template-columns: 1fr !important; }
  .cm-form-grid { grid-template-columns: 1fr !important; }
  .classmate-input-row { flex-direction: column !important; }
  .classmate-input-row input { max-width: 100% !important; }
  .admin-nav button { font-size: 12px !important; padding: 7px 12px !important; }
  .key-row { flex-direction: column !important; }
}

@media (max-width: 420px) {
  .top-timer { font-size: 11px !important; }
  .card-timer-digits { font-size: 14px !important; }
  .card-timer-digits .num { padding: 2px 4px !important; }
  .danmaku-item { font-size: 14px !important; padding: 4px 10px !important; }
  .profile-card { padding: 14px !important; }
  .cm-card { padding: 14px !important; }
  .cm-avatar { width: 38px; height: 38px; font-size: 16px; }
  .cm-name { font-size: 15px !important; }
}