.work-wrap{max-width:960px;margin:0 auto;padding:0 40px 120px}
.work-back{
  position:fixed;left:auto;right:24px;top:auto;
  bottom:clamp(120px,15vh,200px);transform:none;z-index:50;
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  box-shadow:0 10px 30px rgba(36,37,34,.10);
  font-size:12px;font-weight:600;color:var(--muted);text-decoration:none;
  transition:color .22s var(--ease),border-color .22s var(--ease),
             box-shadow .22s var(--ease),transform .22s var(--ease);
}
.work-back:hover{
  color:var(--ink);border-color:var(--ink);
  box-shadow:0 14px 34px rgba(36,37,34,.16);
  transform:translateX(-3px);
}
.work-head{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin:10px 0 24px}
.work-title{font-size:clamp(30px,4.4vw,46px);line-height:1.12;letter-spacing:-.035em;font-weight:780;margin:0}
.work-lead{font-size:14px;line-height:1.95;color:#5f6359;margin:0 0 12px;max-width:64ch}
.work-h2{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:700;margin:52px 0 16px}
.work-h2 i{display:block;width:18px;height:1px;background:var(--ink)}
.work-figure{margin:0;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#f3ece0}
.work-figure img{width:100%;height:auto;display:block}
.work-figure--paper{background:#FEFAF4}
.work-video{width:100%;height:auto;display:block;background:#0d0d0d}
.work-figure--portrait{max-width:540px;margin-left:auto;margin-right:auto}
.work-figure--video{margin-top:32px}
.work-video-grid{position:relative;display:flex;justify-content:center;align-items:flex-start;max-width:100%;min-height:533px;margin:0 auto}.work-video-grid .work-figure--video{width:300px;max-width:300px;margin:0}.work-video-placeholder{position:absolute;left:calc(50% + 12px);top:0;width:300px;aspect-ratio:9/16}
.work-plain{display:block;width:100%;height:auto;border:0;border-radius:0;background:none;margin:32px 0 0}
.work-plain--first{margin-top:0}
.work-gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.work-gallery img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:12px;
  display:block;border:1px solid var(--line);background:#f3ece0}
.work-gallery--single{grid-template-columns:1fr}.work-gallery--single img{aspect-ratio:auto;object-fit:contain;border-radius:0}
.work-note{margin-top:22px;padding:18px 20px;border:1px solid var(--line);border-radius:14px;
  background:#faf6ec;font-size:13px;line-height:1.85;color:var(--ink)}
.sticker-access{display:flex;align-items:center;gap:16px;width:100%;margin-top:22px}
.sticker-access .work-note{flex:0 1 auto;width:fit-content;max-width:calc(100% - 190px);min-width:0;margin-top:0}
.sticker-bili{display:inline-flex;align-items:center;justify-content:center;gap:9px;flex:none;
  min-height:60px;margin-left:auto;padding:12px 18px;border:1px solid var(--line);border-radius:14px;
  background:#faf6ec;color:var(--blue-deep);
  font-size:15px;font-weight:700;text-decoration:none;white-space:nowrap;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
.sticker-bili img{width:24px;height:24px;object-fit:contain;border-radius:4px}
.sticker-bili:hover{background:#fff;border-color:#d2d8e2;transform:translateY(-1px)}
.work-logo-process{margin-bottom:0}
.logo-animation{display:grid;gap:28px;margin-top:24px}
.logo-animation .work-figure--video{margin:0;border:0;border-radius:0;overflow:visible;background:transparent}
.logo-animation .work-video{width:100%;height:auto}
.logo-animation>img{width:100%;height:auto;display:block;border-radius:0}
.logo-animation+.work-h2{margin-top:52px}
.sticker-strips{display:grid;gap:12px;margin-top:16px}
.sticker-strips img{width:100%;height:auto;border:1px solid var(--line);border-radius:10px;background:#fff}
.sticker-detail{width:100%;height:auto;margin:20px 0;display:block}
@media (max-width:1320px){
  .work-back{
    left:auto;right:24px;
    width:44px;height:44px;padding:0;justify-content:center;
    bottom:clamp(120px,15vh,200px);font-size:0;gap:0;
  }
  .work-back span:first-child{font-size:19px}
  .work-back span:last-child{display:none}
}
@media (max-width:760px){
  .work-wrap{padding:0 22px 80px}
  .work-gallery{grid-template-columns:1fr}
  .work-video-grid{grid-template-columns:1fr;min-height:0}.work-video-placeholder{display:none}
  .work-back{left:auto;right:16px;bottom:clamp(88px,14vh,150px)}
  .work-back:hover{transform:translateX(-2px)}
  .sticker-access{align-items:flex-start;flex-direction:column;gap:12px}
  .sticker-access .work-note{width:fit-content;max-width:100%}
  .sticker-bili{align-self:flex-end}
}

/* 航拍等动态片段：保持原始比例，不裁切 */
.work-gallery--anim img{
  aspect-ratio:auto;
  height:auto;
  object-fit:contain;
  background:none;
}

/* 待补充备注 */
.aerial-note{
  margin:52px 0 10px;
  font-size:23px;letter-spacing:.12em;font-weight:650;
  color:var(--ink);opacity:.72;
  text-align:center;
}

/* 作品画面之后的观看入口：右对齐、加大 */
.work-watch-after{
  display:flex;justify-content:flex-end;margin-top:18px;
}
/* B站按钮：全站统一（无阴影、不浮动） */
.watch-link,
.watch-link--big{
  display:inline-flex;align-items:center;gap:9px;
  padding:10px 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  color:var(--ink);text-decoration:none;
  font-size:13px;font-weight:650;letter-spacing:.01em;
  box-shadow:none;
  transform:none;
  transition:border-color .2s ease, color .2s ease;
}
.watch-link:hover,
.watch-link--big:hover{
  border-color:var(--ink);
  transform:none;
  box-shadow:none;
}
.watch-link .watch-logo,
.watch-link--big .watch-logo{
  width:22px;height:22px;border-radius:5px;flex:none;display:block;
}

/* 作品画面之后的观看入口：右对齐 */
.work-watch-after{
  display:flex;justify-content:flex-end;margin-top:18px;
}

/* 小节标题 + 右侧按钮 */
.work-h2-row{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;margin:52px 0 16px;
}
.work-h2-row .work-h2{margin:0}
@media (max-width:640px){
  .work-h2-row{flex-wrap:wrap;gap:10px}
}


/* ==================== 拆解文章页（Spine） ==================== */
.spine-article{max-width:860px;margin:44px 0 0}
.spine-article .work-h2{margin-top:64px}
.spine-article .work-h2:first-child{margin-top:0}
.spine-p{
  margin:0 0 16px;font-size:15.5px;line-height:2;color:var(--ink);
}
.spine-p--step{font-weight:650}
.spine-note{
  margin:0 0 18px;padding:12px 16px;border-radius:10px;
  background:#f7f1e3;border-left:3px solid #c9a86a;
  font-size:14.5px;line-height:1.95;color:#5c5646;
}
.spine-hr{
  border:0;border-top:1px solid var(--line);margin:34px 0;
}
.spine-fig{margin:18px 0 26px}
.spine-fig img{
  display:block;width:100%;height:auto;border-radius:10px;
  border:1px solid var(--line);background:#f2ece0;
}
.spine-link{color:var(--blue-deep);text-decoration:none;word-break:break-all}
.spine-link:hover{text-decoration:underline}
@media (max-width:640px){
  .spine-p{font-size:14.5px;line-height:1.9}
}

/* 公众号引流卡 */
.spine-cta{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  margin:56px 0 20px;padding:26px 28px;border-radius:16px;
  background:#f7f1e3;border:1px solid #e8dcc2;
}
.spine-cta-text{flex:1;min-width:0}
.spine-cta-text b{
  display:block;font-size:19px;font-weight:750;color:var(--ink);margin-bottom:8px;
}
.spine-cta-text p{
  margin:0;font-size:13.5px;line-height:1.9;color:#6b6455;
}
.spine-cta-hint{
  margin-top:10px!important;font-size:12px!important;letter-spacing:.16em;color:#a08b62!important;
}
.spine-cta-qr{
  flex:none;width:150px;height:150px;border-radius:10px;
  background:#fff;border:1px solid #e6dcc6;object-fit:contain;
}
@media (max-width:640px){
  .spine-cta{flex-direction:column-reverse;align-items:flex-start;gap:18px;padding:20px}
  .spine-cta-qr{width:120px;height:120px}
}

/* ==================== 底部磨砂横条（二维码 + 提示） ==================== */
.spine-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:45;
  display:flex;align-items:center;gap:20px;
  padding:16px 26px;border-radius:0;
  background:rgba(255,255,255,.58);
  border:0;border-top:1px solid rgba(255,255,255,.9);
  backdrop-filter:blur(26px) saturate(1.7);
  -webkit-backdrop-filter:blur(26px) saturate(1.7);
  box-shadow:none;
}
.spine-bar-qr{
  flex:none;width:78px;height:78px;border-radius:10px;
  background:#fff;object-fit:contain;display:block;
}
.spine-bar-text{
  flex:1;min-width:0;
  display:flex;flex-direction:column;gap:6px;
}
.spine-bar-text b{
  font-size:15.5px;font-weight:750;color:var(--ink);letter-spacing:.01em;
}
.spine-bar-text span{
  font-size:12.5px;line-height:1.7;color:#6b6455;
}
@media (max-width:760px){
  .spine-bar{left:0;right:0;bottom:0;gap:14px;padding:12px 14px;border-radius:0}
  .spine-bar-qr{width:58px;height:58px}
  .spine-bar-text b{font-size:13px}
  .spine-bar-text span{font-size:11px}
}

/* 文章页：底部不留白 让磨砂条直接压住正文 */
body.spine-page .work-wrap{padding-bottom:0 !important}
body.spine-page main{padding-bottom:0 !important}
body.spine-page .spine-article{margin-bottom:0}
body.spine-page .spine-peek{padding-bottom:0;margin-bottom:-6px}


/* 二维码 + 文字组：平滑平移居中 */
.spine-bar-inner{
  display:flex;align-items:center;gap:20px;
  transform:translateX(0);
  transition:transform .72s cubic-bezier(.25,.8,.3,1);
  will-change:transform;
}
@media (max-width:760px){
  .spine-bar-inner{gap:14px}
}

/* 滚到底：二维码+文字整组平滑滑到画面中间（宽度自适应，无需 JS 计算） */
body.is-end .spine-bar-inner{
  transform:translateX(calc(50vw - 50% - 26px));
}
@media (max-width:760px){
  body.is-end .spine-bar-inner{
    transform:translateX(calc(50vw - 50% - 14px));
  }
}


/* 文件名等代码行 */
.spine-p--code{
  font-family:Consolas,ui-monospace,monospace;
  font-size:13.5px;line-height:1.8;
  background:#f4eee1;border-radius:6px;
  padding:8px 12px;margin:0 0 12px;
  color:#5c5646;word-break:break-all;
}