:root {
  --pink: #fb7299;
  --pink-dark: #e45c86;
  --bg: #f6f7f8;
  --text: #18191c;
  --text-2: #61666d;
  --text-3: #9499a0;
  --border: #e3e5e7;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button {
  font-family: inherit;
}

:focus-visible {
  outline: 2px solid var(--pink);
  outline-offset: 2px;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 20px 16px 48px;
}

.hidden {
  display: none !important;
}

/* ---------- 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 16px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--pink);
  flex: none;
}

.brand svg {
  fill: currentColor;
}

.search-form {
  flex: 1;
  max-width: 440px;
  display: flex;
  align-items: center;
  background: #f1f2f3;
  border-radius: 8px;
  overflow: hidden;
  transition: 0.15s;
}

.search-form:focus-within {
  background: #fff;
  box-shadow: 0 0 0 2px var(--pink);
}

.search-form input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  padding: 9px 14px;
  font-size: 14px;
  outline: none;
  color: var(--text);
}

.search-form input::placeholder {
  color: var(--text-3);
}

.search-form button {
  border: 0;
  background: transparent;
  padding: 0 14px;
  height: 36px;
  cursor: pointer;
  color: var(--text-3);
  display: grid;
  place-items: center;
}

.search-form button:hover {
  color: var(--pink);
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.icon-btn {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: var(--text-2);
  transition: 0.15s;
}

.icon-btn:hover {
  background: #f1f2f3;
  color: var(--pink);
}

/* ---------- 按钮 / 头像 / 用户菜单 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 9px 20px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  cursor: pointer;
  transition: 0.15s;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--pink);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--pink-dark);
}

.btn-outline {
  background: #fff;
  border-color: var(--border);
  color: var(--text);
}

.btn-outline:hover:not(:disabled) {
  border-color: var(--pink);
  color: var(--pink);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
}

.btn-block {
  width: 100%;
}

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  flex: none;
  font-weight: 600;
  user-select: none;
}

.user-menu {
  position: relative;
}

.user-menu summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 8px;
  color: var(--text-2);
}

.user-menu summary::-webkit-details-marker {
  display: none;
}

.user-menu summary:hover,
.user-menu[open] summary {
  background: #f1f2f3;
  color: var(--pink);
}

.user-menu-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  min-width: 150px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  z-index: 50;
}

.user-menu-panel a,
.user-menu-panel button {
  display: flex;
  width: 100%;
  padding: 10px 16px;
  font-size: 14px;
  background: none;
  border: 0;
  cursor: pointer;
  color: var(--text);
}

.user-menu-panel a:hover,
.user-menu-panel button:hover {
  background: #f6f7f8;
  color: var(--pink);
}

.user-name {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14px;
}

/* ---------- 首页 ---------- */
.feed-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.feed-tabs {
  display: inline-flex;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
  gap: 2px;
}

.feed-tabs .tab {
  padding: 7px 20px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--text-2);
}

.feed-tabs .tab.active {
  background: var(--pink);
  color: #fff;
}

.feed-tabs .tab:hover:not(.active) {
  color: var(--pink);
}

.search-tip {
  margin: 0;
  color: var(--text-3);
  font-size: 13px;
}

.flash-success {
  background: #e8f7ee;
  border: 1px solid #bfe8d2;
  color: #1f8a4c;
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 20px;
}

.video-card {
  min-width: 0;
}

.card-cover {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  background: #101014;
  border-radius: var(--radius);
  overflow: hidden;
}

.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.25s ease;
}

.video-card:hover .card-cover img {
  transform: scale(1.04);
}

.duration {
  position: absolute;
  right: 8px;
  bottom: 6px;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  font-size: 12px;
  line-height: 18px;
  padding: 1px 6px;
  border-radius: 4px;
}

.cover-play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #fff;
  opacity: 0;
  background: rgba(0, 0, 0, 0.2);
  transition: opacity 0.2s;
}

.cover-play svg {
  fill: currentColor;
}

.video-card:hover .cover-play {
  opacity: 1;
}

.card-body {
  padding: 10px 2px 0;
}

.card-title {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 15px;
  line-height: 1.5;
  font-weight: 500;
  min-height: 45px;
}

.video-card:hover .card-title {
  color: var(--pink);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  color: var(--text-3);
  font-size: 13px;
  min-width: 0;
}

.card-meta .avatar {
  margin-right: 2px;
}

.card-meta .up-name {
  color: var(--text-3);
  font-weight: 400;
  flex: none;
  max-width: 30%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.meta-text {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  white-space: nowrap;
}

.meta-sep {
  color: #c9ccd0;
}

.empty-state {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 64px 24px;
  text-align: center;
  color: var(--text-3);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.empty-state svg {
  color: #c9ccd0;
}

.empty-state p {
  margin: 0;
}

.load-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 28px;
}

/* ---------- 播放页 ---------- */
.watch-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  align-items: start;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-2);
  font-size: 14px;
  margin-bottom: 12px;
}

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

.player {
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
}

.player video {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  background: #000;
}

.watch-title {
  font-size: 20px;
  line-height: 1.5;
  margin: 16px 0 8px;
}

.watch-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.watch-stats {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-3);
  font-size: 14px;
  flex-wrap: wrap;
}

.watch-stats span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.like-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 15px;
  cursor: pointer;
  transition: 0.15s;
  color: var(--text-2);
}

.like-btn:hover {
  border-color: var(--pink);
  color: var(--pink);
}

.like-btn.liked {
  color: var(--pink);
  border-color: var(--pink);
}

.like-btn.liked svg {
  fill: var(--pink);
}

.uploader-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  margin: 16px 0;
}

.uploader-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.up-name {
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.up-sub {
  display: block;
  font-size: 12px;
  color: var(--text-3);
  margin-top: 2px;
}

.badge-self {
  margin-left: auto;
  font-size: 12px;
  color: var(--pink);
  border: 1px solid var(--pink);
  border-radius: 4px;
  padding: 2px 8px;
  flex: none;
}

.watch-desc {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.7;
  margin: 0 0 16px;
}

.comments {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
}

.comments h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  margin: 0 0 16px;
}

.comment-count {
  color: var(--text-3);
  font-size: 14px;
  font-weight: 400;
}

.comment-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.comment-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  resize: vertical;
  min-height: 80px;
  outline: none;
  font-family: inherit;
  transition: border-color 0.15s;
}

.comment-form textarea:focus {
  border-color: var(--pink);
}

.comment-form .btn {
  align-self: flex-end;
}

.login-tip {
  color: var(--text-3);
  font-size: 14px;
}

.login-tip a {
  color: var(--pink);
}

.comment-item {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--border);
}

.comment-body {
  min-width: 0;
}

.comment-head {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  color: var(--text-3);
}

.comment-head .up-name {
  font-weight: 500;
}

.comment-item p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-2);
  word-break: break-word;
}

.empty-comments {
  color: var(--text-3);
  padding: 20px 0;
  text-align: center;
}

.watch-side h2 {
  font-size: 17px;
  margin: 0 0 12px;
}

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

.side-card {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 10px;
  min-width: 0;
}

.side-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 6px;
  overflow: hidden;
  background: #101014;
}

.side-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.side-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.side-title {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 14px;
  line-height: 1.4;
  font-weight: 500;
}

.side-card:hover .side-title {
  color: var(--pink);
}

.side-meta {
  color: var(--text-3);
  font-size: 12px;
}

/* ---------- 登录 / 注册 ---------- */
.auth-page {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 60px);
  padding: 40px 16px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px;
}

.auth-card h1 {
  margin: 0 0 20px;
  font-size: 24px;
}

.auth-form label {
  display: block;
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 14px;
}

.auth-form input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  background: #fff;
  transition: border-color 0.15s;
}

.auth-form input:focus {
  border-color: var(--pink);
}

.auth-switch {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--text-3);
  text-align: center;
}

.auth-switch a {
  color: var(--pink);
}

.form-error {
  background: #fef0f2;
  color: #c0392b;
  border: 1px solid #f5c2cb;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 16px;
}

/* ---------- 上传页 ---------- */
.upload-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.upload-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
}

.upload-card h1 {
  margin: 0 0 20px;
  font-size: 24px;
}

.upload-form label {
  display: block;
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 14px;
}

.upload-form input[type="text"],
.upload-form textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  resize: vertical;
  font-family: inherit;
  transition: border-color 0.15s;
}

.upload-form input[type="text"]:focus,
.upload-form textarea:focus {
  border-color: var(--pink);
}

.dropzone {
  border: 2px dashed #d0d3d6;
  border-radius: 8px;
  padding: 48px 24px;
  text-align: center;
  color: var(--text-3);
  cursor: pointer;
  transition: 0.15s;
  margin-bottom: 16px;
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.dragover {
  border-color: var(--pink);
  color: var(--pink);
  background: #fff7fa;
}

.dropzone svg {
  margin: 0 auto 12px;
  display: block;
}

.drop-title {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 500;
}

.drop-hint {
  margin: 0;
  font-size: 13px;
}

.dropzone input[type="file"] {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-3);
}

.dropzone input[type="file"]::file-selector-button {
  margin-right: 12px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text-2);
  cursor: pointer;
}

.file-preview {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 12px;
  margin: 0 0 16px;
}

.file-preview video {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 8px;
}

.file-preview img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
  background: #101014;
}

.preview-label {
  display: block;
  font-size: 12px;
  color: var(--text-3);
  margin-bottom: 6px;
}

.upload-meta {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--text-3);
  word-break: break-all;
}

.progress {
  height: 8px;
  background: #f1f2f3;
  border-radius: 4px;
  overflow: hidden;
  margin: 0 0 6px;
}

.progress-bar {
  height: 100%;
  width: 0;
  background: var(--pink);
  transition: width 0.2s;
}

.progress-text {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--text-3);
}

/* ---------- 页脚 / 响应式 ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: #fff;
  padding: 20px 16px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 1000px) {
  .watch-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .container {
    padding: 16px 12px 40px;
  }

  .video-grid {
    gap: 16px 12px;
  }

  .header-inner {
    gap: 12px;
  }

  .search-form {
    max-width: none;
  }

  .user-name,
  .hide-mobile {
    display: none;
  }

  .file-preview {
    grid-template-columns: 1fr;
  }

  .side-card {
    grid-template-columns: 120px minmax(0, 1fr);
  }

  .watch-title {
    font-size: 18px;
  }
}

@media (max-width: 480px) {
  .side-card {
    grid-template-columns: 100px minmax(0, 1fr);
  }

  .card-title {
    font-size: 14px;
    min-height: 42px;
  }
}