/* =========================================================
   一封信 · 克制版
   深墨底 / 暖纸色 / 细黄铜线 · 影集排版
   ========================================================= */

:root{
  --bg:#0a0908;
  --bg-2:#0f0d0c;
  --panel:#121010;
  --paper:#e7dfd3;
  --paper-dim:#bdb4a7;
  --muted:#7c746a;
  --brass:#a5875c;
  --brass-dim:#7d6544;
  --line:rgba(231,223,211,.10);
  --line-2:rgba(231,223,211,.20);
  --serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--paper);
  font-family:var(--sans);font-size:13.5px;line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.locked,body.modal-open{overflow:hidden}
::selection{background:rgba(165,135,92,.28);color:#fff}
button{font:inherit;color:inherit;cursor:pointer;border:none;background:none;-webkit-tap-highlight-color:transparent}
input,textarea{font:inherit;color:inherit}
[hidden]{display:none !important}

/* 细颗粒，几乎看不见 */
body::after{
  content:"";position:fixed;inset:0;z-index:9998;pointer-events:none;opacity:.028;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.8'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;
}

/* =========================================================
   开场
   ========================================================= */
.gate{
  position:fixed;inset:0;z-index:50;display:grid;place-items:center;overflow:hidden;
  background:
    radial-gradient(120% 80% at 50% 38%,#191614 0%,#0e0c0b 52%,#070606 100%);
  transition:opacity 1.1s ease,visibility 1.1s;
}
.gate::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(80% 62% at 50% 45%,transparent 40%,rgba(0,0,0,.62) 100%);
}
.gate.gone{opacity:0;visibility:hidden;pointer-events:none}
.gate-inner{
  position:relative;z-index:2;text-align:center;padding:24px 22px;
  display:flex;flex-direction:column;align-items:center;
}
.gate-eyebrow{
  margin:0 0 46px;font-size:9px;letter-spacing:.62em;text-indent:.62em;
  color:var(--muted);text-transform:uppercase;
}
.gate-hint{
  margin:40px 0 0;font-size:10.5px;letter-spacing:.36em;text-indent:.36em;color:var(--muted);
  transition:opacity .5s ease;
}
.gate.opening .gate-hint{opacity:0}
.gate.code-open .gate-hint{opacity:0}
.gate-foot{
  position:fixed;left:50%;bottom:max(24px,env(safe-area-inset-bottom));
  transform:translateX(-50%);margin:0;font-size:9px;letter-spacing:.42em;text-indent:.42em;
  color:var(--muted);opacity:.7;white-space:nowrap;transition:opacity .5s;
}
.gate.opening .gate-foot{opacity:0}

/* --- 信封 --- */
.envelope{
  position:relative;width:clamp(226px,66vw,312px);aspect-ratio:3/2;
  perspective:1100px;cursor:pointer;outline:none;
  filter:drop-shadow(0 30px 50px rgba(0,0,0,.62));
  transition:filter .6s ease;
}
.envelope:hover{filter:drop-shadow(0 34px 56px rgba(0,0,0,.7))}
.envelope:focus-visible{outline:1px solid var(--line-2);outline-offset:20px}
.gate.opening .envelope{transform:scale(1.03);transition:transform 1s cubic-bezier(.2,.8,.2,1)}

.env-back{
  position:absolute;inset:0;border-radius:2px;
  background:linear-gradient(165deg,#c8bca8 0%,#b3a690 55%,#a1937e 100%);
}
.env-letter{
  position:absolute;left:6.5%;right:6.5%;top:9%;height:76%;z-index:2;
  border-radius:1px;background:linear-gradient(#f3ece0,#e9dfcd);
  box-shadow:0 8px 18px rgba(0,0,0,.28);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px;
  transition:transform 1s cubic-bezier(.2,.85,.2,1);
  will-change:transform;
}
.env-letter-to{
  font-family:var(--serif);font-size:clamp(13px,3.8vw,16px);letter-spacing:.22em;
  text-indent:.22em;color:#4a3c34;
}
.env-letter-rule{width:30px;height:1px;background:rgba(74,60,52,.28)}
.env-letter-line{font-family:var(--serif);font-size:10.5px;letter-spacing:.36em;text-indent:.36em;color:#8a7566}
.gate.opening .env-letter{transform:translateY(-56%) scale(1.02);transition-delay:.42s}
.gate.rising .env-letter{transform:translateY(-158%) scale(1.06);opacity:0;transition:transform .85s cubic-bezier(.4,.05,.7,.2),opacity .7s .18s}

.env-front{
  position:absolute;inset:0;z-index:3;border-radius:2px;
  background:linear-gradient(160deg,#d9ccb8 0%,#c9bba5 58%,#b9aa93 100%);
  clip-path:polygon(0 0,50% 46%,100% 0,100% 100%,0 100%);
  filter:drop-shadow(0 -1px 2px rgba(60,44,32,.3));
}
.env-front::after{
  content:"";position:absolute;inset:0;
  box-shadow:
    inset 0 0 0 1px rgba(255,250,240,.26),
    inset 0 16px 26px -14px rgba(70,50,36,.42),
    inset 0 -22px 30px -18px rgba(70,50,36,.32);
}
.env-flap{
  position:absolute;left:0;top:0;width:100%;height:50%;z-index:4;
  background:linear-gradient(180deg,#e9e0d0 0%,#dfd3c0 62%,#d3c5b0 100%);
  clip-path:polygon(0 0,100% 0,50% 100%);
  transform-origin:top center;
  border-radius:2px 2px 0 0;
  filter:drop-shadow(0 7px 9px rgba(60,44,32,.3));
  transition:transform .95s cubic-bezier(.62,.02,.3,1),z-index 0s .46s;
}
.gate.opening .env-flap{transform:rotateX(-173deg);z-index:1}

.env-seal{
  position:absolute;left:50%;top:44%;z-index:5;
  width:clamp(50px,14vw,60px);height:clamp(50px,14vw,60px);
  transform:translate(-50%,-50%);
  border-radius:50%;
  background:radial-gradient(circle at 36% 28%,#713941 0%,#512931 52%,#3a1d23 100%);
  box-shadow:
    0 9px 18px rgba(0,0,0,.55),
    inset 0 1px 3px rgba(255,236,228,.2),
    inset 0 -8px 14px rgba(0,0,0,.4);
  display:grid;place-items:center;
  transition:transform .45s cubic-bezier(.3,.8,.3,1),opacity .5s;
}
.env-seal::after{
  content:"";position:absolute;inset:5px;border:1px solid rgba(240,228,214,.16);border-radius:50%;
}
.env-seal-mark{
  font-family:var(--serif);font-size:9.5px;letter-spacing:.12em;text-indent:.12em;
  color:rgba(240,228,214,.85);
}
.envelope:hover .env-seal{transform:translate(-50%,-50%) scale(1.05)}
.gate.opening .env-seal{transform:translate(-50%,-50%) scale(1.3);opacity:0}

/* --- 输入 --- */
.gate-code{
  position:fixed;left:50%;top:min(calc(50% + 172px),calc(100% - 226px));
  transform:translateX(-50%);width:min(330px,calc(100vw - 44px));
  margin:0;display:flex;flex-direction:column;align-items:center;gap:16px;
  animation:codeIn .6s cubic-bezier(.2,.8,.2,1) both;
  transition:opacity .4s ease;
}
@keyframes codeIn{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%,0)}}
.gate.opening .gate-code{opacity:0;pointer-events:none}
.gate-code-title{
  margin:0;font-family:var(--serif);font-size:clamp(13.5px,3.8vw,15px);
  line-height:2;letter-spacing:.18em;color:var(--paper-dim);
}
.gate-code-row{display:flex;align-items:center;gap:8px}
.gate-input{
  width:156px;padding:11px 12px;border-radius:2px;text-align:center;
  border:1px solid var(--line-2);background:transparent;
  color:var(--paper);font-size:13px;letter-spacing:.3em;text-indent:.3em;
  outline:none;transition:border-color .3s;
}
.gate-input::placeholder{color:rgba(124,116,106,.7);letter-spacing:.22em}
.gate-input:focus{border-color:var(--brass)}
.gate-input.shake{animation:shake .45s}
@keyframes shake{0%,100%{transform:translateX(0)}18%{transform:translateX(-6px)}38%{transform:translateX(5px)}58%{transform:translateX(-3px)}78%{transform:translateX(2px)}}
.gate-btn{
  padding:11px 20px;border-radius:2px;letter-spacing:.22em;text-indent:.22em;font-size:11.5px;
  color:#15120f;background:var(--paper);transition:background .25s;
}
.gate-btn:hover{background:#f4ede2}
.gate-tip{margin:0;font-size:10px;letter-spacing:.16em;color:var(--muted);min-height:1.2em}

/* =========================================================
   正文
   ========================================================= */
.main{
  position:relative;min-height:100vh;z-index:1;
  opacity:0;transform:translateY(10px);
  transition:opacity 1.3s ease,transform 1.3s cubic-bezier(.2,.8,.2,1);
}
.main::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(130% 70% at 50% -10%,#151210 0%,#0e0c0b 42%,#080706 100%);
}
.main.in{opacity:1;transform:none}

/* 顶栏 */
.topbar{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px clamp(18px,5vw,44px);
  background:linear-gradient(to bottom,rgba(10,9,8,.86),rgba(10,9,8,0) 100%);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:background .4s,border-color .4s;
  border-bottom:1px solid transparent;
}
.topbar.scrolled{border-bottom-color:var(--line);background:rgba(10,9,8,.9)}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-since{
  font-family:var(--serif);font-size:10px;letter-spacing:.32em;color:var(--muted);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.topbar-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}

.line-btn{
  padding:9px 18px;border:1px solid var(--line-2);border-radius:2px;
  font-size:11px;letter-spacing:.2em;text-indent:.2em;color:var(--paper-dim);
  background:transparent;transition:border-color .3s,color .3s;white-space:nowrap;
}
.line-btn:hover{border-color:var(--brass);color:var(--paper)}
.line-btn:active{transform:translateY(1px)}
.solid-btn{
  padding:9px 18px;border-radius:2px;font-size:11px;letter-spacing:.18em;text-indent:.18em;
  background:var(--paper);color:#15120f;transition:background .25s,opacity .25s;
}
.solid-btn:hover{background:#f4ede2}
.solid-btn:disabled{opacity:.35;cursor:not-allowed}
.ghost-btn{
  padding:9px 18px;border-radius:2px;border:1px solid var(--line);
  font-size:11px;letter-spacing:.16em;color:var(--muted);transition:color .3s,border-color .3s;
}
.ghost-btn:hover{color:var(--paper-dim);border-color:var(--line-2)}
.ghost-btn.wide{width:100%}
.icon-btn{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--muted);background:transparent;
  transition:border-color .3s,color .3s;flex:0 0 auto;
}
.icon-btn:hover{border-color:var(--line-2);color:var(--paper-dim)}
.music-bars{display:flex;align-items:flex-end;gap:2px;height:11px}
.music-bars i{width:1.5px;height:4px;background:var(--muted)}
.music-bars.playing i{animation:bars 1.1s ease-in-out infinite;background:var(--brass)}
.music-bars.playing i:nth-child(2){animation-delay:.22s}
.music-bars.playing i:nth-child(3){animation-delay:.44s}
@keyframes bars{0%,100%{height:3px;opacity:.6}50%{height:11px;opacity:1}}

/* 计时 */
.hero{
  max-width:840px;margin:0 auto;
  padding:clamp(58px,11vh,116px) 22px clamp(46px,8vh,84px);
  text-align:center;
}
.eyebrow{
  margin:0 0 34px;font-size:9px;letter-spacing:.62em;text-indent:.62em;color:var(--muted);
}
.hero-title{
  margin:0;display:flex;flex-direction:column;align-items:center;font-weight:400;
  font-family:var(--serif);
}
.hero-pre{
  font-size:clamp(.78rem,3vw,.9rem);letter-spacing:.46em;text-indent:.46em;color:var(--muted);
}
.hero-days{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(3.6rem,13.5vw,7.4rem);line-height:1.06;letter-spacing:.02em;
  font-variant-numeric:tabular-nums;color:var(--paper);
  margin:10px 0 6px;
}
.hero-post{
  font-size:clamp(.78rem,3vw,.9rem);letter-spacing:.46em;text-indent:.46em;color:var(--muted);
}
.ticker{
  margin:30px 0 0;font-size:10.5px;letter-spacing:.26em;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.milestone{
  margin:15px 0 0;font-size:10px;letter-spacing:.22em;color:var(--brass-dim);
}
.hero-rule{width:56px;height:1px;background:var(--line-2);margin:42px auto 30px}
.names{
  display:flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--serif);font-size:11.5px;letter-spacing:.24em;color:var(--muted);
}
.names-sep{color:var(--brass-dim);letter-spacing:0}

/* 那句话 */
.note-wrap{max-width:660px;margin:0 auto;padding:0 22px}
.note-card{
  position:relative;padding:clamp(42px,7vw,64px) 0;text-align:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.note-label{
  margin:0 0 26px;font-size:9px;letter-spacing:.5em;text-indent:.5em;color:var(--muted);
}
.note-text{
  margin:0;font-family:var(--serif);font-size:clamp(14.5px,4vw,16.5px);line-height:2.25;
  letter-spacing:.06em;color:var(--paper-dim);white-space:pre-wrap;word-break:break-word;
}
.note-edit{
  position:absolute;right:0;top:2px;font-size:9px;letter-spacing:.24em;
  color:var(--muted);opacity:0;transition:opacity .3s;border-bottom:1px solid transparent;
}
.note-card:hover .note-edit{opacity:.8}
.note-edit:hover{color:var(--brass);border-bottom-color:var(--brass)}
@media (hover:none){.note-edit{opacity:.5}}

/* 相册 */
.wall-section{max-width:1120px;margin:0 auto;padding:clamp(64px,11vh,110px) clamp(18px,4vw,34px) 20px}
.section-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  padding-bottom:15px;border-bottom:1px solid var(--line);
}
.section-head h2{
  margin:0;font-family:var(--serif);font-weight:400;
  font-size:clamp(1.2rem,4vw,1.5rem);letter-spacing:.2em;color:var(--paper);
}
.count{font-size:9.5px;letter-spacing:.28em;color:var(--muted);white-space:nowrap}
.wall{display:grid;grid-template-columns:repeat(3,1fr);gap:38px 30px;margin-top:40px}
@media (max-width:900px){.wall{grid-template-columns:repeat(2,1fr);gap:24px 14px;margin-top:26px}}

.shot{
  position:relative;margin:0;opacity:0;transform:translateY(16px);
  transition:opacity 1s cubic-bezier(.2,.8,.2,1),transform 1s cubic-bezier(.2,.8,.2,1);
}
.shot.in{opacity:1;transform:none}

.shot-img{
  position:relative;overflow:hidden;background:#141210;
  border:1px solid var(--line-2);aspect-ratio:4/5;
}
.shot-img img{
  display:block;width:100%;height:100%;object-fit:cover;
  filter:saturate(.96) contrast(1.02);
  transition:transform 1.2s cubic-bezier(.2,.8,.2,1),opacity .5s;
}
.shot:hover .shot-img img{transform:scale(1.02)}
.shot figcaption{
  display:flex;align-items:baseline;gap:10px;
  padding:11px 1px 0;
}
.shot-index{
  font-size:8.5px;letter-spacing:.2em;color:var(--brass-dim);
  font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.shot-cap{
  flex:1;min-width:0;font-family:var(--serif);font-size:13px;line-height:1.6;
  letter-spacing:.04em;color:var(--paper-dim);
}
.shot-cap:empty{display:none}
.shot-date{
  flex:0 0 auto;font-size:8.5px;letter-spacing:.18em;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
@media (max-width:900px){
  .shot-cap{font-size:11.5px}
  .shot figcaption{padding-top:8px;gap:7px}
}
.shot-menu{
  position:absolute;top:9px;right:9px;z-index:3;
  width:26px;height:26px;border-radius:2px;display:grid;place-items:center;
  background:rgba(10,9,8,.55);color:rgba(231,223,211,.8);
  font-size:11px;letter-spacing:1px;opacity:0;transition:opacity .3s,background .3s;
  backdrop-filter:blur(4px);
}
.shot:hover .shot-menu,.shot-menu:focus-visible{opacity:1}
.shot-menu:hover{background:rgba(10,9,8,.85)}
@media (hover:none){.shot-menu{opacity:.55}}

/* 空态 */
.empty{display:grid;place-items:center;padding:56px 0 20px}
.empty-frame{
  width:min(300px,78vw);padding:44px 24px;text-align:center;
  border:1px solid var(--line);color:var(--muted);
}
.empty-frame p{margin:0}
.empty-title{font-family:var(--serif);font-size:13px;letter-spacing:.2em;color:var(--paper-dim)}
.empty-sub{font-size:10px;letter-spacing:.16em;margin-top:10px !important;opacity:.8}
.empty-frame .line-btn{margin-top:26px}
.wall-more{display:flex;justify-content:center;padding:26px 0 0}

/* 页脚 */
.footer{padding:80px 22px 90px;text-align:center;color:var(--muted)}
.footer-rule{width:1px;height:36px;background:var(--line-2);margin:0 auto 30px}
.footer-names{
  margin:0;font-family:var(--serif);font-size:11.5px;letter-spacing:.34em;color:var(--paper-dim);
}
.footer-since{margin:14px 0 0;font-size:9px;letter-spacing:.3em;opacity:.75}

/* 进场 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 1.1s cubic-bezier(.2,.8,.2,1),transform 1.1s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}

/* =========================================================
   弹窗
   ========================================================= */
.modal{
  position:fixed;inset:0;z-index:80;display:grid;place-items:center;padding:18px;
  background:rgba(6,5,5,.78);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.modal.open{opacity:1;pointer-events:auto}
.modal-card{
  width:min(520px,100%);max-height:calc(100dvh - 40px);overflow:auto;
  border-radius:3px;border:1px solid var(--line-2);
  background:#121010;box-shadow:0 40px 90px -40px #000;
  transform:translateY(8px);transition:transform .35s cubic-bezier(.2,.8,.2,1);
}
.modal.open .modal-card{transform:none}
.modal-card.wide{width:min(660px,100%)}
.modal-card.small{width:min(380px,100%)}
.modal-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 20px;border-bottom:1px solid var(--line);
}
.modal-head h3{
  margin:0;font-family:var(--serif);font-weight:400;font-size:12.5px;
  letter-spacing:.26em;color:var(--paper-dim);
}
.modal-head .icon-btn{width:28px;height:28px;font-size:10px;border:none}
.modal-body{padding:20px;display:flex;flex-direction:column;gap:16px}
.modal-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 20px;border-top:1px solid var(--line);
}
.modal-actions{display:flex;align-items:center;gap:8px;margin-left:auto}

.dropzone{
  display:flex;flex-direction:column;align-items:center;gap:7px;padding:34px 18px;
  border:1px dashed var(--line-2);border-radius:2px;cursor:pointer;text-align:center;
  transition:border-color .3s,background .3s;
}
.dropzone:hover,.dropzone.drag{border-color:var(--brass);background:rgba(165,135,92,.04)}
.dz-title{font-size:12px;letter-spacing:.16em;color:var(--paper-dim)}
.dz-sub{font-size:9.5px;letter-spacing:.14em;color:var(--muted)}

.previews{display:grid;grid-template-columns:repeat(auto-fill,minmax(124px,1fr));gap:10px}
.preview{position:relative;overflow:hidden;border:1px solid var(--line);background:#0e0c0b}
.preview img{display:block;width:100%;aspect-ratio:1;object-fit:cover;filter:saturate(.96)}
.preview-body{padding:8px;display:flex;flex-direction:column;gap:6px}
.preview-body input{
  width:100%;font-size:10.5px;padding:5px 7px;border-radius:1px;
  border:1px solid var(--line);background:transparent;color:var(--paper-dim);outline:none;
}
.preview-body input:focus{border-color:var(--brass)}
.preview-del{
  position:absolute;top:5px;right:5px;width:20px;height:20px;border-radius:1px;
  background:rgba(10,9,8,.75);color:var(--paper-dim);font-size:10px;display:grid;place-items:center;
}
.up-bar{height:1px;background:var(--line);overflow:hidden;margin:0}
.up-bar span{display:block;height:100%;width:0;background:var(--brass);transition:width .3s}
.up-status{font-size:9.5px;letter-spacing:.2em;color:var(--muted)}

.field{display:flex;flex-direction:column;gap:8px}
.field > span{font-size:9px;letter-spacing:.28em;color:var(--muted)}
.text-input{
  width:100%;padding:10px 12px;border-radius:2px;outline:none;
  border:1px solid var(--line-2);background:transparent;
  color:var(--paper);font-size:12.5px;transition:border-color .3s;
}
.text-input:focus{border-color:var(--brass)}
.text-input.area{resize:vertical;min-height:140px;line-height:2;font-family:var(--serif);font-size:13.5px}
.hint{margin:0;font-size:10px;letter-spacing:.14em;color:var(--muted);min-height:1em}

/* 底部操作 */
.modal.sheet{place-items:end center;padding:0}
.sheet-card{width:min(420px,100%);border-radius:3px 3px 0 0;padding-bottom:env(safe-area-inset-bottom)}
.sheet-card .modal-body{padding:12px;gap:8px}
.sheet-card .modal-foot{border-top:none;padding:0 12px 14px}
.sheet-btn{
  width:100%;padding:14px;border-radius:2px;font-size:12px;letter-spacing:.18em;
  color:var(--paper-dim);background:transparent;border:1px solid var(--line);
  transition:border-color .25s,color .25s;
}
.sheet-btn:hover{border-color:var(--line-2);color:var(--paper)}
.sheet-btn.danger{color:#a8756c}

/* =========================================================
   大图
   ========================================================= */
.lightbox{
  position:fixed;inset:0;z-index:90;display:flex;flex-direction:column;
  align-items:center;justify-content:center;padding:56px 12px 64px;
  background:rgba(4,4,4,.97);opacity:0;pointer-events:none;transition:opacity .35s ease;
}
.lightbox.open{opacity:1;pointer-events:auto}
.lb-figure{margin:0;display:flex;flex-direction:column;align-items:center;gap:16px;max-height:100%}
#lbImg{
  max-width:min(94vw,1100px);max-height:76dvh;object-fit:contain;
  background:#0e0c0b;border:1px solid rgba(231,223,211,.12);
}
.lightbox figcaption{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:center;text-align:center}
#lbCaption{font-family:var(--serif);font-size:13px;color:var(--paper-dim);letter-spacing:.04em}
#lbDate{font-size:9px;letter-spacing:.24em;color:var(--muted)}
.lb-close{
  position:absolute;top:max(16px,env(safe-area-inset-top));right:16px;
  width:34px;height:34px;border-radius:50%;color:var(--muted);font-size:13px;
  border:1px solid var(--line);
}
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:38px;height:38px;border-radius:50%;font-size:19px;line-height:1;
  color:var(--paper-dim);background:transparent;border:1px solid var(--line);
  display:grid;place-items:center;transition:border-color .25s,color .25s;
}
.lb-nav:hover{border-color:var(--line-2);color:var(--paper)}
.lb-nav.prev{left:12px}
.lb-nav.next{right:12px}
.lb-counter{
  position:absolute;bottom:max(22px,env(safe-area-inset-bottom));left:50%;
  transform:translateX(-50%);font-size:9px;letter-spacing:.32em;color:var(--muted);
}

.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,10px);z-index:120;
  padding:10px 20px;border-radius:2px;font-size:11px;letter-spacing:.14em;
  background:#141211;color:var(--paper-dim);border:1px solid var(--line-2);
  opacity:0;transition:opacity .35s,transform .35s;
  max-width:calc(100vw - 40px);text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:560px){
  .topbar{padding:14px 16px}
  .topbar-since{font-size:9px;letter-spacing:.24em}
  .line-btn{padding:8px 14px;font-size:10.5px}
  .hero{padding-top:clamp(40px,9vh,72px)}
  .modal{padding:12px}
  .modal-card{max-height:calc(100dvh - 26px)}
  .lightbox{padding:40px 8px 54px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
}