.iv-landing,.iv-page{--iv-ink:#193e35;--iv-accent:#f47b24;--iv-muted:#76837c;color:var(--iv-ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:#f6f5ef;font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}
.iv-landing{margin:0}.iv-page *,.iv-landing *{box-sizing:border-box}.iv-shell{width:100%;max-width:460px;margin:auto;padding:18px 18px calc(28px + env(safe-area-inset-bottom))}.iv-page .iv-shell{padding-top:8px}.iv-page[hidden]{display:none}.iv-page .iv-nav{position:sticky;top:0;z-index:3;background:#f6f5ef;display:flex;align-items:center;justify-content:space-between;min-height:60px;padding:8px 20px;border:0}.iv-nav h1{font-size:17px;margin:0;font-weight:650}.iv-nav button{background:transparent;border:0;color:var(--iv-ink);font:inherit;padding:8px 0;min-width:52px;display:flex;align-items:center;gap:6px}.iv-nav svg{width:18px;height:18px}.iv-nav>span{width:52px}.iv-landing-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:0 0 20px}.iv-brand{font-weight:850;font-size:21px;letter-spacing:-.5px;color:var(--iv-ink);text-decoration:none}.iv-brand span{color:var(--iv-accent)}.iv-school{font-size:11px;padding:4px 10px;background:#e9eee7;border-radius:30px;max-width:65%;overflow-wrap:anywhere}.iv-greeting{display:flex;align-items:center;gap:10px;font-size:13px;margin:12px 0 17px}.iv-avatar{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;font-size:12px;background:#e3eadb}.iv-em{font-weight:700;margin-left:5px}.iv-poster-card{position:relative;border-radius:18px;overflow:hidden;background:#fdf3d7;box-shadow:0 8px 28px #24443412;line-height:0}.iv-poster{display:block;width:100%;height:auto;aspect-ratio:1080/1520;-webkit-touch-callout:default;user-select:auto}.iv-poster[hidden],.iv-landing [hidden],.iv-page [hidden]{display:none!important}.iv-poster-loading{display:grid;place-items:center;min-height:300px;padding:30px;text-align:center;font-size:14px;line-height:1.6;color:#78866d}.iv-poster-fallback{padding:24px;text-align:center;line-height:1.7}.iv-poster-fallback h1{font-size:25px}.iv-poster-fallback img{display:block;width:220px;max-width:100%;margin:20px auto}.iv-save-hint{text-align:center;font-size:12px;letter-spacing:.2px;color:#768174;margin:14px 0 20px}.iv-actions{display:flex;gap:10px;margin-top:16px}.iv-button,.iv-page .iv-button{display:flex;align-items:center;justify-content:center;gap:6px;width:100%;min-height:48px;padding:12px 14px;border:0;border-radius:13px;background:#1d4b3d;color:white;font-size:15px;font-weight:650;text-decoration:none;line-height:1.5;cursor:pointer;font-family:inherit}.iv-button.secondary,.iv-page .iv-button.secondary{background:#e8ede4;color:#214635;font-weight:500}.iv-button:disabled{opacity:.55;cursor:wait}.iv-paper{padding:21px;background:white;border-radius:18px;margin-top:20px;border:1px solid #e8eadf}.iv-paper h2,.iv-page .iv-paper h2{font-size:17px;line-height:1.5;margin:0 0 16px;color:var(--iv-ink)}.iv-steps-card h2{font-size:15px}.iv-steps{list-style:none;padding:0;margin:0 0 24px;display:grid;gap:19px}.iv-steps li{display:flex;gap:12px;align-items:flex-start}.iv-steps b{display:grid;place-items:center;flex-shrink:0;width:25px;height:25px;border-radius:8px;color:#b17636;background:#fff3df;font-size:12px}.iv-steps strong{display:block;font-weight:550;font-size:13px}.iv-steps span{display:block;color:var(--iv-muted);font-size:11px;margin-top:3px}.iv-rules{font-size:12px;color:#758071;margin:22px 5px}.iv-rules summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between}.iv-rules summary:after{content:'＋';font-size:16px}.iv-rules[open] summary:after{content:'−'}.iv-rules p{line-height:1.9}.iv-footer{text-align:center;font-size:11px;color:#9da697;margin:30px 0 0;letter-spacing:1px}.iv-intro{padding:8px 1px 14px}.iv-kicker{font-size:10px;letter-spacing:2px;color:#80916f;margin:0 0 8px}.iv-intro h2{margin:0;font-size:27px;line-height:1.35;font-weight:800;letter-spacing:-.7px}.iv-intro p:last-child{margin:10px 0 0;color:#7e8777;font-size:12px}.iv-summary{display:grid;grid-template-columns:1fr 1fr;gap:12px;border-bottom:1px solid #edf0e7;padding:4px 0 18px;margin-bottom:16px}.iv-summary strong{display:block;font-size:28px;line-height:1.4;letter-spacing:-1px}.iv-summary span{font-size:11px;color:#8b9285}.iv-section-title{display:flex;justify-content:space-between;align-items:center}.iv-section-title button{font-size:12px;border:0;background:transparent;color:#718465;padding:4px;cursor:pointer}.iv-empty{text-align:center;color:#90988c;padding:15px 0;font-size:12px}.iv-person{padding:14px 0;border-top:1px solid #f0f2e9;display:flex;align-items:center;justify-content:space-between;gap:10px}.iv-person strong{font-size:13px;font-weight:550}.iv-person small{display:block;color:#939c8c;font-size:11px;margin-top:3px}.iv-tag{font-size:11px;color:#8c6c3f;background:#faf3e7;padding:4px 8px;border-radius:6px;white-space:nowrap}.iv-note{color:#8e9889;font-size:11px;margin:10px 0}.iv-error{color:#a33d19;background:#fff0e7;padding:12px 14px;border-radius:10px;line-height:1.6;font-size:13px}.iv-error:empty{display:none}.iv-link-box{font-family:inherit;font-size:12px;width:100%;padding:12px;background:#f2f5ee;border:0;border-radius:8px;color:#5b6f54;resize:none;margin-top:12px}.iv-courier{color:#85917b;font-size:12px;margin:24px 5px}.iv-courier summary{cursor:pointer}.iv-courier input{display:block;width:100%;padding:12px;border:1px solid #dce4d7;border-radius:8px;margin:12px 0;background:white;font:inherit}/* 独立图片预览占满可用视口；不继承全局 margin 重置导致的左上角浮层。 */
html.iv-saving,html.iv-saving body{overflow:hidden;overscroll-behavior:none}
.iv-dialog{position:fixed;inset:0;margin:0;width:100%;max-width:none;height:100%;height:100dvh;max-height:none;padding:0;border:0;border-radius:0;background:#14251f;color:#f5f5e9;overflow:hidden;box-sizing:border-box}
.iv-dialog[open]{display:grid;grid-template-rows:auto minmax(0,1fr) auto}
.iv-dialog::backdrop{background:#14251f}
.iv-dialog-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:calc(8px + env(safe-area-inset-top,0px)) 16px 8px 22px;font-size:16px;line-height:1.4}
.iv-dialog-head strong{font-weight:600}
.iv-dialog-head button{display:grid;place-items:center;width:44px;height:44px;flex-shrink:0;padding:0;border:0;border-radius:50%;background:#ffffff12;color:#fff;font-size:29px;line-height:1;cursor:pointer}
.iv-dialog-image{min-height:0;padding:8px 20px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.iv-dialog img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;border-radius:8px;-webkit-touch-callout:default;-webkit-user-select:auto;user-select:auto}
.iv-dialog p{padding:18px 16px calc(20px + env(safe-area-inset-bottom,0px));margin:0;text-align:center;font-size:14px;line-height:1.8;color:#f5f5e9}
.iv-dialog p strong{display:block;font-weight:500}.iv-dialog p span{display:block;font-size:12px;color:#a6b6a9}
@media(max-height:480px){.iv-dialog-head{padding-top:4px;padding-bottom:4px}.iv-dialog p{padding-top:6px;padding-bottom:8px;font-size:12px}.iv-dialog p span{display:none}}
.iv-create-card{padding:26px 20px;text-align:center;border:1px dashed #c8d2bd;background:#eff3e8;border-radius:18px}.iv-create-card h3{font-size:19px;margin:0 0 8px}.iv-create-card p{font-size:12px;color:#849074;margin-bottom:22px}@media(min-width:600px){.iv-landing .iv-shell{padding-top:28px}}@media(prefers-reduced-motion:no-preference){.iv-poster-loading{animation:iv-pulse 1.5s ease-in-out infinite}@keyframes iv-pulse{50%{opacity:.5}}}