:root{--red:#eb0052;--ink:#1b191c;--paper:#f7f5f0;--line:#e7e1dc}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--paper)}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;-webkit-font-smoothing:antialiased}button{font:inherit}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;min-height:68px;padding:12px 18px;border-bottom:1px solid rgba(220,216,210,.88);background:rgba(247,245,240,.92);backdrop-filter:blur(18px)}.eyebrow{display:block;color:var(--red);font-size:9px;font-weight:900;letter-spacing:.14em}.topbar h1{margin:3px 0 0;font-size:16px;line-height:1.2}.count{margin-left:12px;padding:7px 10px;border-radius:999px;background:#fff;color:#8b8388;font-size:11px;font-weight:800;box-shadow:0 4px 16px rgba(55,42,47,.06)}.reading-tip{margin:14px 14px 6px;padding:13px 14px;border-left:4px solid var(--red);background:#fff0f5}.reading-tip b{color:var(--red);font-size:12px}.reading-tip p{margin:4px 0 0;color:#625c60;font-size:12px;line-height:1.45}.deck-list{padding:4px 12px 104px}.slide-card{scroll-margin-top:76px;margin:14px 0;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 12px 34px rgba(48,37,42,.07)}.slide-meta{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:15px 16px 13px}.slide-meta span{color:var(--red);font-size:10px;font-weight:900;letter-spacing:.08em}.slide-meta h2{margin:4px 0 0;font-size:16px;line-height:1.35}.slide-meta b{color:#d9d2d5;font-size:28px;line-height:1}.slide-preview{position:relative;display:block;width:100%;padding:0;border:0;border-top:1px solid #eee9e6;background:#f3f0ec;cursor:zoom-in}.slide-preview img{display:block;width:100%;height:auto}.zoom-hint{position:absolute;right:10px;bottom:10px;padding:7px 10px;border-radius:999px;background:rgba(27,25,28,.78);color:#fff;font-size:10px;font-weight:800}.bottom-nav{position:fixed;z-index:30;left:50%;bottom:max(14px,env(safe-area-inset-bottom));display:grid;grid-template-columns:48px minmax(150px,1fr) 48px;gap:8px;width:min(350px,calc(100% - 28px));padding:8px;transform:translateX(-50%);border:1px solid rgba(221,214,217,.9);border-radius:24px;background:rgba(255,255,255,.94);box-shadow:0 16px 46px rgba(50,37,43,.16);backdrop-filter:blur(16px)}.bottom-nav button{min-height:46px;border:0;border-radius:16px;background:var(--red);color:#fff;font-size:20px;font-weight:900}.bottom-nav button:disabled{opacity:.25}.bottom-nav .page-pill{display:flex;align-items:center;justify-content:center;gap:10px;background:#fff0f5;color:var(--ink);font-size:12px}.page-pill span{color:var(--red);font-size:18px}.page-pill i{font-style:normal;font-weight:800}.lightbox[hidden]{display:none}.lightbox{position:fixed;z-index:100;inset:0;display:grid;grid-template-rows:auto 1fr auto;background:#181518;color:#fff}.lightbox-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.12)}.lightbox-bar div{min-width:0}.lightbox-bar span{display:block;color:#ff8fb5;font-size:10px;font-weight:900}.lightbox-bar b{display:block;overflow:hidden;margin-top:3px;font-size:13px;text-overflow:ellipsis;white-space:nowrap}.lightbox-bar button{width:42px;height:42px;flex:0 0 auto;border:0;border-radius:50%;background:var(--red);color:#fff;font-size:26px}.lightbox-stage{display:flex;align-items:center;overflow:auto;width:100%;padding:16px;overscroll-behavior:contain}.lightbox-stage img{display:block;min-width:100%;max-width:none;height:auto;margin:auto;border-radius:8px;box-shadow:0 12px 40px rgba(0,0,0,.35)}.zoom-controls{display:grid;grid-template-columns:1fr 72px 1fr;align-items:center;gap:8px;padding:10px 14px calc(10px + env(safe-area-inset-bottom));border-top:1px solid rgba(255,255,255,.12);background:#211d20}.zoom-controls button{min-height:44px;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:#302a2e;color:#fff;font-size:13px;font-weight:800}.zoom-controls span{text-align:center;color:#ff9abd;font-size:12px;font-weight:900}@media(min-width:700px){.deck-list,.reading-tip{width:min(680px,calc(100% - 32px));margin-left:auto;margin-right:auto}.slide-card{margin:20px 0}.slide-meta h2{font-size:20px}}@media(orientation:landscape) and (max-height:600px){.topbar,.reading-tip,.slide-meta{display:none}.deck-list{width:100%;padding:0 0 76px}.slide-card{margin:0 0 10px;border-radius:0}}
