:root{--bg:#11151d;--panel:#fff;--ink:#f4f7ff;--muted:#d3d9ea;--accent:#2f92ff;--accent-2:#ffd47b;--line:#ffffff40}*{box-sizing:border-box}html,body,#root{width:100%;min-height:100%;margin:0}body{color:var(--ink);background:radial-gradient(circle at 28% 12%,#2c3346 0%,#1c2130 38%,#11151d 100%);font-family:PingFang SC,Noto Sans SC,Microsoft YaHei,sans-serif;overflow:hidden}a{color:inherit}.app-state{text-align:center;place-items:center;min-height:100dvh;padding:2rem;display:grid}.app-error p{margin:.35rem 0}.catalog-page{min-height:100vh;padding:1.5rem 1.2rem 2rem}.catalog-header{max-width:1200px;margin:0 auto 1.2rem}.catalog-header h1{margin:0 0 .35rem;font-size:clamp(1.4rem,2.2vw,2rem)}.catalog-header p{color:var(--muted);margin:0;font-size:.95rem}.catalog-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.9rem;max-width:1200px;margin:0 auto;display:grid}.slide-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;text-decoration:none;transition:transform .2s,box-shadow .2s;overflow:hidden;box-shadow:0 10px 20px #1e2a2214}.slide-card:hover{transform:translateY(-3px);box-shadow:0 16px 32px #1e2a221f}.slide-card-preview{aspect-ratio:16/9;background:#f4f7f4;position:relative;overflow:hidden}.slide-card-bg{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.slide-card-overlay{color:#fff;background:linear-gradient(#0000 40%,#00000085);flex-direction:column;justify-content:flex-end;gap:.4rem;padding:.7rem .8rem;display:flex;position:absolute;inset:0}.slide-card-overlay h2{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:.96rem;line-height:1.3;display:-webkit-box;overflow:hidden}.slide-card-index{opacity:.95;font-size:.78rem}.slide-card-meta{color:var(--muted);justify-content:space-between;padding:.6rem .8rem .75rem;font-size:.78rem;display:flex}.player-page{background:#0d1320;min-height:100dvh;position:fixed;inset:0;overflow:hidden}.player-toolbar{z-index:40;-webkit-backdrop-filter:blur(10px)saturate(135%);backdrop-filter:blur(10px)saturate(135%);background:linear-gradient(#161e2dc7,#0e142194);border:1px solid #ffffff2e;border-radius:16px;grid-template-columns:1fr auto 1fr;align-items:center;gap:.8rem;width:min(96vw,1260px);padding:.6rem .8rem;display:grid;position:absolute;top:14px;left:50%;transform:translate(-50%);box-shadow:0 10px 30px #0000004d}.player-toolbar-left,.player-toolbar-right{align-items:center;gap:.5rem;display:flex}.player-toolbar-right{color:#f5f8ff;justify-content:flex-end;font-size:.85rem}.player-toolbar-center{flex-direction:column;align-items:center;gap:.2rem;display:flex}.player-toolbar-center strong{color:#fff;font-size:1rem}.player-toolbar-center span{color:#dce6ff;text-shadow:0 1px 5px #00000047;font-size:.84rem}.player-step-badge{color:#f4fbff;background:linear-gradient(160deg,#2f92ff47,#165ac429);border:1px solid #6fb1ff80;border-radius:999px;align-items:center;gap:.2rem;padding:.3rem .68rem;display:inline-flex}.toolbar-btn{color:#edf5ff;cursor:pointer;background:linear-gradient(#1c3a60c2,#152a4ab3);border:1px solid #aad2ff61;border-radius:999px;padding:.35rem .78rem;font-size:.84rem;text-decoration:none;box-shadow:inset 0 0 0 1px #ffffff1a}.toolbar-btn:disabled{opacity:.4;cursor:not-allowed}.player-canvas-wrap{min-height:100%;padding:0;position:absolute;inset:0}.slide-viewport{cursor:pointer;-webkit-user-select:none;user-select:none;background:radial-gradient(circle,#1a2434,#0d1320 70%);border:none;border-radius:0;outline:none;width:100%;height:100%;position:relative;overflow:hidden}.slide-stage{transform-origin:50%;box-shadow:none;background:#fff;position:absolute;top:50%;left:50%;overflow:hidden}.slide-background{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.slide-background-mask{pointer-events:none;position:absolute;inset:0}.slide-background-mask-cover{z-index:1;background:linear-gradient(#0c130f38 0%,#1119141f 30%,#0e141214 58%,#090e0b33 100%),radial-gradient(circle at 75% 86%,#0000 0%,#0000000d 58%,#00000029 100%)}.slide-stage-cover .slide-text{text-shadow:0 2px 10px #00000059,0 1px 2px #00000038}.slide-element{transition:opacity .28s;position:absolute}.slide-text{white-space:pre-wrap;word-break:break-word;color:#2d2418;letter-spacing:.012em;text-shadow:0 1px #fff9;box-shadow:none;background:0 0;border:none;border-radius:0;padding:0;font-family:Kaiti SC,STKaiti,KaiTi,楷体,Noto Serif SC,serif;line-height:1.64}.slide-text-heading{color:#8e2f1f;letter-spacing:.024em;background:0 0;border:none;font-family:Kaiti SC,STKaiti,KaiTi,楷体,serif;font-weight:700}.slide-text-normal{color:#2f291e}.slide-text-paragraph{color:#292a20;background:0 0;border:none;line-height:1.64}.cover-sticker{z-index:8;object-fit:contain;pointer-events:none;width:min(82vw,1320px);max-height:56vh;position:absolute;top:4.2%;left:50%;transform:translate(-50%)}.cover-signature{z-index:8;letter-spacing:.06em;color:#fdf6ea;text-shadow:0 3px 12px #0000007a,0 0 30px #0003;white-space:nowrap;font-family:Kaiti SC,STKaiti,KaiTi,楷体,serif;font-size:70px;font-weight:600;position:absolute;bottom:3.2%;right:3.6%}.slide-text.is-emphasis{animation:.55s pulse-highlight}.slide-image,.slide-video,.slide-audio-icon{object-fit:contain;width:100%;height:100%}.slide-video{object-fit:cover}.slide-audio{justify-content:center;align-items:center;display:flex}.slide-shape{border:1px dashed #0000}.player-hint{z-index:35;color:#e6eeff;letter-spacing:.01em;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#0f16248a;border:1px solid #ffffff38;border-radius:999px;padding:.38rem .7rem;font-size:.78rem;position:absolute;bottom:14px;right:16px}@keyframes pulse-highlight{0%{background:color-mix(in srgb, var(--accent-2) 96%, white);transform:scale(1)}60%{background:color-mix(in srgb, var(--accent-2) 70%, white);transform:scale(1.015)}to{background:0 0;transform:scale(1)}}@media (width<=980px){.player-toolbar{grid-template-columns:1fr;gap:.42rem;width:min(98vw,860px);padding:.45rem .5rem;top:8px}.player-toolbar-left,.player-toolbar-right,.player-toolbar-center{justify-content:center}.player-toolbar-center{order:-1}}@media (width<=560px){.player-toolbar-left{flex-wrap:wrap;justify-content:center;gap:.35rem}.toolbar-btn{padding:.28rem .62rem;font-size:.76rem}.player-toolbar-center strong{font-size:.9rem}.player-toolbar-center span{text-overflow:ellipsis;white-space:nowrap;max-width:92vw;font-size:.76rem;overflow:hidden}.player-hint{padding:.34rem .58rem;font-size:.72rem;bottom:10px;right:10px}}@media (aspect-ratio<=16/9){.cover-sticker{width:min(88vw,1380px);top:5%}.cover-signature{font-size:54px;bottom:2.7%;right:2.8%}}