/* ============================================================
   资料云盘 — 页面样式（依赖 styles.css 设计变量）
   ============================================================ */

/* 浅色页面：导航始终用深底，保证可读 */
body.cloud-page .nav{
  background:rgba(11,22,38,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 1px 0 rgba(201,168,106,.18);
  padding:12px 0;
}
body.cloud-page .nav.is-scrolled{padding:12px 0}

.cloud{padding-top:calc(72px + 96px)}

.cloud__lead{
  text-align:center;
  max-width:640px;
  margin:0 auto clamp(36px,5vw,56px);
  font-size:15.5px;
  line-height:2;
  color:#6B5D49;
}

/* ---------- 工具栏 ---------- */
.cloud__toolbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:22px;
}
.cloud__tabs{display:flex;gap:8px;flex-wrap:wrap}
.cloud__tab{
  font-size:13.5px;
  letter-spacing:.08em;
  color:#6B5D49;
  padding:8px 18px;
  border-radius:999px;
  border:1px solid var(--line-soft);
  background:#FFFDF7;
  transition:all .3s var(--ease);
}
.cloud__tab:hover{color:var(--gold-deep);border-color:var(--line)}
.cloud__tab.is-active{
  color:var(--ink);
  background:linear-gradient(145deg,var(--gold-light),var(--gold));
  border-color:var(--gold);
  font-weight:500;
  box-shadow:0 4px 12px rgba(201,168,106,.3);
}
.cloud__tools{display:flex;gap:12px;flex-wrap:wrap}
.cloud__search{
  display:flex;align-items:center;gap:8px;
  padding:8px 14px;
  border:1px solid var(--line-soft);
  border-radius:8px;
  background:#FFFDF7;
  color:var(--gold-deep);
}
.cloud__search input{
  border:none;background:none;outline:none;
  font-family:inherit;font-size:13.5px;color:var(--text);
  width:170px;
}
.cloud__search input::placeholder{color:#B3A488}
.cloud__signer{
  display:flex;align-items:center;gap:8px;
  padding:8px 14px;
  border:1px solid var(--line-soft);
  border-radius:8px;
  background:#FFFDF7;
  font-size:13.5px;color:var(--gold-deep);
}
.cloud__signer input{
  border:none;background:none;outline:none;
  font-family:inherit;font-size:13.5px;color:var(--text);
  width:130px;
}
.cloud__signer input::placeholder{color:#B3A488}

/* ---------- 上传区 ---------- */
.cloud__dropzone{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:clamp(32px,5vw,48px) 24px;
  margin-bottom:26px;
  text-align:center;
  border:1.5px dashed var(--gold);
  border-radius:12px;
  background:linear-gradient(180deg,rgba(201,168,106,.07),rgba(201,168,106,.02));
  cursor:pointer;
  transition:background .3s var(--ease),border-color .3s,transform .3s var(--ease);
  outline:none;
}
.cloud__dropzone:hover,.cloud__dropzone:focus-visible{
  background:linear-gradient(180deg,rgba(201,168,106,.14),rgba(201,168,106,.05));
  transform:translateY(-2px);
}
.cloud__dropzone.is-drag{
  background:linear-gradient(180deg,rgba(201,168,106,.2),rgba(201,168,106,.08));
  border-color:var(--gold-deep);
  transform:scale(1.01);
}
.cloud__dropzone-icon{
  display:grid;place-items:center;
  width:72px;height:72px;
  margin-bottom:10px;
  border-radius:50%;
  color:var(--gold-deep);
  background:rgba(201,168,106,.12);
  border:1px solid var(--line);
}
.cloud__dropzone-text{font-size:15.5px;color:var(--ink);font-family:var(--serif);letter-spacing:.04em}
.cloud__dropzone-text strong{color:var(--gold-deep)}
.cloud__dropzone-sub{font-size:12.5px;color:#9C8C6F;letter-spacing:.06em}

/* ---------- 上传进度 ---------- */
.cloud__progress{max-width:560px;margin:0 auto 26px}
.cloud__progress-info{
  display:flex;justify-content:space-between;
  font-size:13px;color:#6B5D49;margin-bottom:8px;letter-spacing:.04em;
}
.cloud__progress-bar{
  height:6px;border-radius:999px;
  background:rgba(201,168,106,.18);
  overflow:hidden;
}
.cloud__progress-bar span{
  display:block;width:0;height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--gold-deep),var(--gold-light));
  transition:width .2s linear;
}

/* ---------- 统计 ---------- */
.cloud__stats{
  text-align:center;
  font-size:13px;color:#9C8C6F;letter-spacing:.08em;
  margin-bottom:20px;
}

/* ---------- 文件网格 ---------- */
.cloud__grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
  gap:22px;
}
.cloud__card{
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,#FFFDF7,#F5ECD8);
  border:1px solid var(--line-soft);
  border-radius:10px;
  overflow:hidden;
  transition:transform .45s var(--ease),box-shadow .45s var(--ease);
  animation:cloudIn .5s var(--ease-out) both;
}
@keyframes cloudIn{
  from{opacity:0;transform:translateY(14px)}
  to{opacity:1;transform:translateY(0)}
}
.cloud__card:hover{
  transform:translateY(-5px);
  box-shadow:0 24px 50px -28px rgba(11,22,38,.32);
}
.cloud__thumb{
  position:relative;
  aspect-ratio:4/3;
  display:grid;place-items:center;
  background:linear-gradient(160deg,var(--ink-2),var(--ink));
  color:var(--gold-light);
  cursor:pointer;
  overflow:hidden;
}
.cloud__thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease);
}
.cloud__card:hover .cloud__thumb img{transform:scale(1.05)}
.cloud__thumb-icon svg{opacity:.9}
.cloud__badge{
  position:absolute;left:10px;top:10px;
  font-size:11px;letter-spacing:.14em;
  color:var(--gold-light);
  padding:3px 10px;
  border-radius:999px;
  background:rgba(11,22,38,.62);
  border:1px solid rgba(201,168,106,.35);
  backdrop-filter:blur(4px);
}
.cloud__body{
  display:flex;flex-direction:column;gap:6px;
  padding:14px 16px 16px;
  flex:1;
}
.cloud__name{
  font-size:14px;color:var(--ink);
  font-weight:400;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.cloud__meta{
  display:flex;align-items:center;gap:6px;
  font-size:12px;color:#9C8C6F;letter-spacing:.03em;
  flex-wrap:wrap;
}
.cloud__meta-sep{opacity:.5}
.cloud__actions{
  display:flex;gap:8px;
  margin-top:auto;padding-top:10px;
}
.cloud__btn{
  flex:1;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  font-size:12.5px;letter-spacing:.06em;
  padding:8px 0;
  border-radius:7px;
  border:1px solid var(--line);
  color:var(--gold-deep);
  background:#FFFDF7;
  transition:all .3s var(--ease);
}
.cloud__btn:hover{color:var(--ink);background:linear-gradient(145deg,var(--gold-light),var(--gold));border-color:var(--gold)}
.cloud__btn--danger:hover{
  color:#F6F0E2;
  background:linear-gradient(145deg,#B04A4A,var(--crimson));
  border-color:var(--crimson);
}

/* ---------- 空状态 ---------- */
.cloud__empty{
  text-align:center;
  padding:clamp(48px,7vw,84px) 24px;
  color:#9C8C6F;
}
.cloud__empty-mark{
  display:grid;place-items:center;
  width:88px;height:88px;
  margin:0 auto 20px;
  font-family:var(--brush);
  font-size:40px;
  color:var(--gold-deep);
  border:1px solid var(--line);
  border-radius:50%;
  background:rgba(201,168,106,.08);
}
.cloud__empty p{font-size:14.5px;letter-spacing:.08em}

/* ---------- 照片墙瀑布流 ---------- */
.cloud__grid--wall{
  display:block;
  columns:4 260px;
  column-gap:14px;
}
.cloud__grid--wall .cloud__backbar{column-span:all;margin-bottom:10px}
.wall-item{
  position:relative;
  margin:0 0 14px;
  border-radius:10px;
  overflow:hidden;
  cursor:zoom-in;
  break-inside:avoid;
  background:var(--ink-2);
  box-shadow:0 12px 30px -18px rgba(11,22,38,.35);
  animation:cloudCardIn .5s var(--ease) both;
}
.wall-item img,.wall-item video{
  display:block;width:100%;height:auto;
  transition:transform .5s var(--ease);
}
.wall-item:hover img,.wall-item:hover video{transform:scale(1.03)}
.wall-item__info{
  position:absolute;left:0;right:0;bottom:0;
  display:flex;flex-direction:column;gap:2px;
  padding:26px 12px 10px;
  background:linear-gradient(to top,rgba(11,22,38,.78),transparent);
  color:#fff;
  opacity:0;transition:opacity .25s;
  pointer-events:none;
}
.wall-item:hover .wall-item__info{opacity:1}
.wall-item__name{
  font-size:12.5px;font-weight:500;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.wall-item__meta{display:flex;align-items:center;gap:4px;font-size:11.5px;opacity:.85}
.wall-item__play{
  position:absolute;top:50%;left:50%;
  transform:translate(-50%,-50%);
  display:grid;place-items:center;
  width:52px;height:52px;border-radius:50%;
  background:rgba(11,22,38,.55);
  color:#fff;
  pointer-events:none;
  transition:transform .3s var(--ease),background .3s;
}
.wall-item:hover .wall-item__play{transform:translate(-50%,-50%) scale(1.12);background:rgba(201,168,106,.75)}
.wall-item__del{
  position:absolute;top:8px;right:8px;
  display:grid;place-items:center;
  width:30px;height:30px;border-radius:50%;
  border:none;cursor:pointer;
  background:rgba(11,22,38,.6);color:#fff;
  opacity:0;transition:opacity .25s,background .2s;
}
.wall-item:hover .wall-item__del{opacity:1}
.wall-item__del:hover{background:var(--crimson,#A63A3A)}
@media (max-width:720px){
  .cloud__grid--wall{columns:2 160px;column-gap:10px}
  .wall-item{margin-bottom:10px}
}
/* 触屏没有悬浮，信息条常显（弱化版） */
@media (hover:none){
  .wall-item__info{opacity:1;padding:18px 10px 8px}
  .wall-item__del{opacity:1}
}

/* ---------- 灯箱（预览 + 点赞评论） ---------- */
.lightbox[hidden]{display:none}
.lightbox{
  position:fixed;inset:0;
  z-index:2000;
  background:rgba(5,11,22,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  animation:lightboxIn .3s var(--ease) both;
  padding:48px 20px 20px;
  overflow-y:auto;
}
@keyframes lightboxIn{from{opacity:0}to{opacity:1}}
.lightbox__stage{
  display:flex;gap:20px;align-items:stretch;
  max-width:1280px;height:calc(100% - 8px);
  margin:0 auto;
}
.lightbox__body{
  flex:1;min-width:0;
  display:flex;align-items:center;justify-content:center;
}
.lightbox__body img{
  max-width:100%;max-height:100%;
  border-radius:8px;
  box-shadow:0 30px 90px -30px rgba(0,0,0,.8);
}
.lightbox__body video{
  max-width:100%;max-height:100%;
  border-radius:8px;
  background:#000;
  box-shadow:0 30px 90px -30px rgba(0,0,0,.8);
}
.lightbox__body audio{width:min(560px,88vw)}
.lightbox__side{
  flex:none;width:320px;
  display:flex;flex-direction:column;
  background:rgba(246,240,226,.06);
  border:1px solid rgba(201,168,106,.25);
  border-radius:12px;
  padding:16px;
  color:var(--cream);
  min-height:0;
}
.lightbox__caption{
  margin:0 0 12px;
  font-size:14px;font-weight:500;
  word-break:break-all;
}
.lightbox__actions{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.like-btn{
  display:inline-flex;align-items:center;gap:6px;
  height:34px;padding:0 14px;
  border-radius:999px;
  border:1px solid rgba(201,168,106,.5);
  background:none;color:var(--cream);
  font-size:14px;font-family:inherit;cursor:pointer;
  transition:all .2s;
}
.like-btn:hover{background:rgba(201,168,106,.15)}
.like-btn.is-liked{color:#E07070;border-color:#E07070}
.like-btn.is-liked svg{fill:#E07070}
.lightbox__dl{
  font-size:13px;color:var(--gold-light);
  text-decoration:underline;text-underline-offset:3px;
}
.lightbox__comments{
  flex:1;min-height:60px;overflow-y:auto;
  display:flex;flex-direction:column;gap:10px;
  padding-right:4px;margin-bottom:12px;
}
.lightbox__no-comment{font-size:13px;opacity:.5;margin:8px 0}
.comment{border-bottom:1px solid rgba(246,240,226,.08);padding-bottom:8px}
.comment__head{
  display:flex;justify-content:space-between;gap:8px;
  margin:0 0 3px;font-size:12px;
}
.comment__head strong{color:var(--gold-light);font-weight:500}
.comment__head span{opacity:.45;flex:none}
.comment__text{margin:0;font-size:13px;line-height:1.6;word-break:break-all}
.lightbox__comment-form{display:flex;gap:8px}
.lightbox__comment-form input{
  flex:1;min-width:0;height:38px;padding:0 12px;
  border:1px solid rgba(201,168,106,.35);border-radius:8px;
  background:rgba(5,11,22,.4);color:var(--cream);
  font-size:13px;font-family:inherit;outline:none;
}
.lightbox__comment-form input::placeholder{color:rgba(246,240,226,.35)}
.lightbox__comment-form button{
  flex:none;height:38px;padding:0 16px;
  border:none;border-radius:8px;
  background:var(--gold);color:#0B1626;
  font-size:13px;font-weight:500;font-family:inherit;cursor:pointer;
}
.lightbox__comment-form button:disabled{opacity:.5;cursor:default}
.lightbox__close{
  position:absolute;top:18px;right:18px;
  z-index:10;
  display:grid;place-items:center;
  width:44px;height:44px;
  border-radius:50%;
  color:var(--cream);
  background:rgba(246,240,226,.08);
  border:1px solid rgba(201,168,106,.35);
  transition:background .3s,transform .3s;
}
.lightbox__close:hover{background:rgba(201,168,106,.25);transform:rotate(90deg)}
@media (max-width:860px){
  .lightbox__stage{flex-direction:column;height:auto}
  .lightbox__body{min-height:40vh}
  .lightbox__body img,.lightbox__body video{max-height:55vh}
  .lightbox__side{width:100%}
  .lightbox__comments{max-height:30vh}
}

/* ---------- 文件夹视图与社交行 ---------- */
.cloud__folder{cursor:pointer}
.cloud__folder .cloud__thumb::after{
  content:"打开文件夹";
  position:absolute;inset:0;
  display:grid;place-items:center;
  background:rgba(11,22,38,.45);
  color:#fff;font-size:14px;letter-spacing:.2em;
  opacity:0;transition:opacity .25s;
}
.cloud__folder:hover .cloud__thumb::after{opacity:1}
.cloud__backbar{
  grid-column:1/-1;
  display:flex;align-items:center;gap:14px;
  padding:4px 0 2px;
}
.cloud__backbar-title{font-size:14px;opacity:.75}
.cloud__social{
  display:flex;align-items:center;gap:5px;
  margin:0 0 10px;font-size:12px;color:var(--crimson);
}

/* ---------- 提示 ---------- */
.toast{
  position:fixed;left:50%;bottom:32px;
  z-index:2100;
  transform:translate(-50%,16px);
  max-width:86vw;
  padding:12px 26px;
  font-size:13.5px;letter-spacing:.06em;
  color:var(--cream);
  background:rgba(11,22,38,.92);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:0 16px 40px -12px rgba(5,11,22,.6);
  opacity:0;
  pointer-events:none;
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ---------- 响应式 ---------- */
@media (max-width:768px){
  .cloud{padding-top:calc(60px + 64px)}
  .cloud__toolbar{flex-direction:column;align-items:stretch}
  .cloud__tabs{justify-content:center}
  .cloud__tools{justify-content:stretch}
  .cloud__search{flex:1}
  .cloud__search input{width:100%;min-width:0}
  .cloud__signer{flex:1;justify-content:center}
  .cloud__grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}
  .cloud__lead-br{display:none}
}

/* ===== 登录 ===== */
.cloud__user{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--ink);opacity:.85;margin:-4px 0 16px}
.cloud__user-out{border:none;background:none;color:var(--crimson);cursor:pointer;font-size:13px;font-family:inherit;padding:2px 2px;text-decoration:underline;text-underline-offset:3px}

.login{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:20px}
.login[hidden]{display:none}
.login__mask{position:absolute;inset:0;background:rgba(11,22,38,.62);backdrop-filter:blur(4px)}
.login__card{position:relative;width:100%;max-width:400px;background:var(--paper);border-radius:14px;padding:34px 30px 28px;box-shadow:0 24px 64px rgba(11,22,38,.4);animation:loginIn .28s cubic-bezier(.2,.9,.3,1)}
@keyframes loginIn{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
.login__close{position:absolute;top:14px;right:14px;width:34px;height:34px;border:none;background:none;color:var(--ink);opacity:.45;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:50%}
.login__close:hover{opacity:.9;background:rgba(11,22,38,.06)}
.login__title{font-family:var(--serif);font-size:24px;color:var(--ink);margin:0 0 6px}
.login__sub{font-size:13px;color:rgba(11,22,38,.55);margin:0 0 20px;line-height:1.7}
.login__field{display:block;margin-bottom:14px}
.login__field[hidden]{display:none}
.login__field span{display:block;font-size:12px;letter-spacing:.12em;color:rgba(11,22,38,.6);margin-bottom:6px}
.login__field input,.login__field select{width:100%;box-sizing:border-box;height:44px;padding:0 12px;border:1px solid rgba(11,22,38,.18);border-radius:8px;background:#fff;font-size:15px;color:var(--ink);outline:none;-webkit-appearance:none;appearance:none;font-family:inherit}
.login__captcha{display:flex;gap:8px;align-items:stretch}
.login__captcha input{flex:1;min-width:0}
.login__captcha-img{flex:none;width:122px;height:44px;border-radius:8px;overflow:hidden;cursor:pointer;border:1px solid rgba(11,22,38,.18);background:#F7F2E9;display:flex;align-items:center;justify-content:center;font-size:12px;color:rgba(11,22,38,.5);line-height:1.4;text-align:center}
.login__captcha-img svg{display:block}
.login__sms-btn{flex:none;height:44px;padding:0 14px;border:1px solid var(--gold);border-radius:8px;background:none;color:var(--gold-deep);font-size:14px;font-family:inherit;cursor:pointer;white-space:nowrap;transition:background .2s}
.login__sms-btn:hover:not(:disabled){background:rgba(201,168,106,.12)}
.login__sms-btn:disabled{opacity:.55;cursor:default}
.login__field select{background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%230B1626' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:34px}
.login__field input:focus,.login__field select:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,168,106,.18)}
.login__err{font-size:13px;color:var(--crimson);margin:2px 0 10px}
.login__submit{width:100%;height:46px;border:none;border-radius:8px;background:linear-gradient(135deg,var(--gold-deep),var(--gold));color:#fff;font-size:16px;letter-spacing:.3em;text-indent:.3em;cursor:pointer;margin-top:6px;font-family:inherit;transition:filter .2s}
.login__submit:disabled{opacity:.6;cursor:default}
.login__submit:hover:not(:disabled){filter:brightness(1.08)}