:root{--ink:#17211c;--muted:#68756f;--paper:#f7f2e8;--panel:#fffdf8;--line:#d8cfbf;--line-strong:#998a74;--forest:#123d35;--forest-2:#1e6659;--cinnabar:#b6462f;--gold:#c69b45;--blue:#244f73;--mist:#edf5ef;--surface:#fffbf3;--shadow:0 28px 80px #1f180c24;--radius:8px;--serif:"Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;--sans:"Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;color:var(--ink);background:var(--paper);font-family:var(--sans);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html,body,#app{min-height:100%;overflow-x:hidden}body{background:linear-gradient(90deg, #123d350d 1px, transparent 1px) 0 0 / 44px 44px, linear-gradient(#123d350b 1px, transparent 1px) 0 0 / 44px 44px, radial-gradient(circle at 18% 12%, #c69b4533, transparent 28%), radial-gradient(circle at 88% 82%, #244f7324, transparent 30%), var(--paper);min-height:100vh;margin:0}button,input,textarea{font:inherit}button{-webkit-tap-highlight-color:transparent}.shell{grid-template-columns:.92fr 1.08fr;align-items:stretch;gap:24px;width:min(1100px,100%);min-height:100dvh;margin:0 auto;padding:28px;display:grid}.brand-panel,.form-panel{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.brand-panel{color:#f9f0dd;background:linear-gradient(135deg, #123d35fa, #123d35d4), linear-gradient(45deg, transparent 49%, #f8e7bd1f 50%, transparent 51%) 0 0 / 34px 34px, radial-gradient(circle at 18% 22%, #c69b453d, transparent 30%), radial-gradient(circle at 86% 78%, #b6462f2e, transparent 32%), var(--forest);flex-direction:column;justify-content:center;min-height:calc(100dvh - 56px);padding:clamp(28px,5vw,56px);display:flex;position:sticky;top:28px;overflow:hidden}.brand-panel:before{content:"";pointer-events:none;border:1px solid #f9f0dd47;border-radius:4px;position:absolute;inset:18px}.privacy-line{color:#f8e7bda8;text-align:center;letter-spacing:0;width:max-content;max-width:calc(100% - clamp(56px,10vw,112px));font-size:15px;position:absolute;top:clamp(28px,4vw,48px);left:50%;transform:translate(-50%)}.brand-panel h1{color:#fffaf0;max-width:700px;font-family:var(--serif);text-align:center;letter-spacing:0;justify-items:center;gap:.08em;margin:0 auto;font-size:clamp(46px,4.8vw,76px);font-weight:700;line-height:1.12;display:grid}.brand-panel h1 span{display:block}.maker{text-align:right;color:#fffaf0b3;letter-spacing:0;width:max-content;max-width:calc(100% - clamp(56px,10vw,112px));font-size:14px;position:absolute;bottom:clamp(28px,4vw,48px);right:clamp(28px,5vw,56px)}.form-panel{background:#fffdf8f0;grid-template-rows:auto 1fr auto;gap:18px;min-height:calc(100dvh - 56px);padding:clamp(20px,3.4vw,42px);display:grid}.progress-wrap{border-bottom:1px solid var(--line);padding-bottom:18px}.progress-meta{color:var(--muted);justify-content:space-between;gap:16px;font-size:13px;line-height:1.45;display:flex}#page-label{max-width:76%;color:var(--forest);align-items:center;gap:8px;min-width:0;font-size:14px;font-weight:700;display:inline-flex}.chapter-no{background:var(--forest);color:#fffaf0;border-radius:50%;place-items:center;width:22px;height:22px;font-size:12px;line-height:1;display:inline-grid}.chapter-label{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.track{background:#e8dfd1;border-radius:999px;height:10px;margin-top:12px;overflow:hidden}#progress-bar{background:linear-gradient(90deg, var(--forest), var(--forest-2) 68%, var(--gold));border-radius:inherit;width:0;height:100%;transition:width .26s}#question-host{align-items:center;min-height:360px;display:flex}#question-host>div,#question-host article{width:100%}.directory-sheet{border-top:2px solid var(--forest)}.directory-meta{border-bottom:1px solid var(--line);color:var(--forest);justify-content:space-between;gap:12px;padding:10px 0 8px;font-size:13px;font-weight:800;display:flex}.directory-list{margin:0;padding:0;list-style:none}.directory-row{border-bottom:1px solid #d8cfbfd9;grid-template-columns:34px 1fr;gap:12px;min-width:0;padding:11px 0;display:grid}.directory-no{background:var(--forest);color:#fffaf0;border-radius:50%;place-items:center;width:25px;height:25px;margin-top:2px;font-size:12px;font-weight:800;line-height:1;display:inline-grid}.directory-row strong{color:var(--forest);font-size:16px;font-weight:800;line-height:1.35;display:block}.directory-row p{color:#5f6e67;margin:3px 0 0;font-size:12px;line-height:1.5}.question-card h2{color:var(--ink);font-family:var(--serif);letter-spacing:0;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 10px;font-size:clamp(27px,4vw,40px);font-weight:800;line-height:1.18;animation:.24s both question-in;display:flex}.question-type-tag{min-height:22px;color:var(--forest-2);font-family:var(--sans);background:#edf5efd1;border:1px solid #1e665938;border-radius:999px;align-items:center;padding:3px 8px;font-size:12px;font-weight:800;line-height:1;display:inline-flex}.question-card p{color:var(--muted);margin:0 0 28px;font-size:15px;line-height:1.62;animation:.26s 30ms both question-in}.eyebrow{border:1px solid var(--line);width:max-content;max-width:100%;color:var(--forest);background:#fff7e9;border-radius:999px;margin-bottom:14px;padding:6px 10px;font-size:13px;font-weight:700}.field-label{color:var(--forest);margin-bottom:10px;font-size:14px;font-weight:700;display:block}input,textarea{border:1px solid var(--line);width:100%;min-height:56px;color:var(--ink);background:#fffaf1;border-radius:6px;outline:none;padding:16px 17px;font-size:17px;line-height:1.6;transition:border-color .18s,box-shadow .18s,background .18s}textarea{resize:vertical;min-height:148px}input:focus,textarea:focus{border-color:var(--forest-2);background:#fffdf8;box-shadow:0 0 0 4px #1e665921}.option-list{gap:9px;animation:.28s 60ms both question-in;display:grid}.option{border:1px solid var(--line);text-align:left;min-height:52px;color:var(--ink);font-family:var(--sans);background:#fffdf8d1;border-left:4px solid #0000;border-radius:6px;align-items:center;gap:10px;padding:13px 15px 13px 12px;font-size:15px;font-weight:500;line-height:1.45;transition:border-color .18s,background .18s,transform .18s,box-shadow .18s;display:flex;box-shadow:0 1px #1f180c08}.option:hover{background:#fffdf8;border-color:#c7bba8}.mark{color:#8f826f;background:#fffdf8;border:1px solid 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var(--forest-2);color:var(--forest);background:#edf7eee0;border-radius:6px;margin-top:16px;padding:12px 14px;font-size:14px;font-weight:700;line-height:1.55;animation:.18s both question-in}.download-status.pending{border-left-color:var(--gold);background:#fff7e9}.download-status.error{color:#7c251f;background:#fff0eb;border-color:#902a233d #902a233d #902a233d #9a332b}.actions{border-top:1px solid var(--line);grid-template-columns:auto auto 1fr auto;gap:10px;padding-top:18px;display:grid}.actions button{cursor:pointer;min-height:48px;color:var(--ink);font-family:var(--sans);border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;gap:8px;padding:0 16px;font-weight:700;transition:transform .16s,box-shadow .16s,background .16s;display:inline-flex}.actions button:active{transform:translateY(1px)}.actions button:disabled{cursor:not-allowed;opacity:.45}.ghost{background:#fffaf1;border-color:var(--line)!important}.primary{background:var(--forest);box-shadow:0 12px 24px #123d352e;color:#fffaf0!important;border-color:var(--forest)!important}.primary:hover{background:#0f342d}.hidden{display:none!important}@keyframes question-in{0%{opacity:.82;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media (width<=820px){body{background:linear-gradient(90deg, #123d350a 1px, transparent 1px) 0 0 / 28px 28px, linear-gradient(#123d350a 1px, transparent 1px) 0 0 / 28px 28px, var(--paper)}.shell{min-height:100dvh;padding:0;display:block}.brand-panel{min-height:226px;box-shadow:none;border-width:0 0 1px;border-radius:0;padding:54px 22px 42px;position:relative;top:auto}.brand-panel:before{inset:12px}.privacy-line{max-width:calc(100% - 44px);font-size:13px;top:20px;left:50%;transform:translate(-50%)}.brand-panel h1{word-break:keep-all;overflow-wrap:normal;max-width:340px;font-size:29px;line-height:1.18}.maker{text-align:right;width:auto;max-width:none;font-size:12px;bottom:18px;left:22px;right:22px}.form-panel{min-height:calc(100dvh - 226px);box-shadow:none;padding:20px 18px max(18px, env(safe-area-inset-bottom));border:0;border-radius:0}.shell.catalog-mode .brand-panel{min-height:150px;padding:38px 22px 24px}.shell.catalog-mode .privacy-line{top:16px}.shell.catalog-mode .brand-panel h1{font-size:23px;line-height:1.16}.shell.catalog-mode .maker{bottom:12px}.shell.catalog-mode .form-panel{gap:9px;min-height:calc(100dvh - 150px);padding-top:13px}.shell.catalog-mode .progress-wrap{padding-bottom:10px}.shell.catalog-mode .actions{grid-template-columns:1fr;padding-top:10px}.shell.catalog-mode .actions button{min-height:44px}.shell.catalog-mode #prev-btn{display:none!important}#question-host{align-items:start;min-height:390px;padding-top:20px}.shell.catalog-mode #question-host{min-height:auto;padding-top:0}.question-card h2{font-size:25px;line-height:1.18}.question-card p{margin-bottom:18px;font-size:14px}.catalog-page h2{margin-bottom:6px;font-size:23px}.catalog-page>p{margin-bottom:10px;font-size:12px;line-height:1.45}.directory-meta{padding:7px 0 6px;font-size:11px}.directory-row{grid-template-columns:28px 1fr;gap:8px;padding:7px 0}.directory-no{width:21px;height:21px;font-size:11px}.directory-row strong{font-size:13px}.directory-row p{margin-top:2px;font-size:10px;line-height:1.36}.option{min-height:50px;font-size:14px}.actions{grid-template-columns:1fr 1fr}#next-btn,#download-btn{grid-column:1/-1;min-height:54px}}