/* ============================================================
   链上日记 Onchain Diary · PWA
   设计令牌与组件样式移植自 mockup.html（DESIGN-SPEC.md 单一来源）
   ============================================================ */
html,body{height:100%}
html{background:#0E0D0B}
body{background:#0E0D0B;padding:0;margin:0 auto;max-width:520px;box-shadow:0 0 0 1px rgba(255,255,255,.05)}
@media (min-width:521px){body{min-height:100dvh;position:relative}}
[hidden]{display:none!important}
.boot{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#0E0D0B;color:#A8A499;font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.3em;z-index:99}
.s-light{color-scheme:light}
.s-dark,.s-green{color-scheme:dark}

/* 安全区：刘海 + home 条 */
.safe-top{padding-top:max(14px, env(safe-area-inset-top))}
.tabbar{margin-bottom:max(10px, env(safe-area-inset-bottom))!important}

/* 滚动区通用 */
.scroll{flex:1;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;min-height:0}
.scroll::-webkit-scrollbar{width:0}
@media (hover:hover){.scroll::-webkit-scrollbar{width:3px}.scroll::-webkit-scrollbar-thumb{background:var(--bd);border-radius:2px}}

/* 细滚动条（文章进度由 JS 驱动 .progress-thin i 宽度） */
.progress-thin i{transition:width .15s linear}

/* ---- Markdown 正文渲染（文章 / 词条深度版） ---- */
.md-body{font-size:15.5px;line-height:1.78;color:var(--t1);overflow-wrap:anywhere;word-break:break-word}
.md-body a{overflow-wrap:anywhere}
.md-body p{margin:0 0 14px}
.md-body h2{font-family:'Fraunces',serif;font-weight:600;font-size:20px;line-height:1.3;margin:26px 0 12px;letter-spacing:-.01em}
.md-body h3{font-family:'Fraunces',serif;font-weight:600;font-size:17px;margin:20px 0 10px}
.md-body h4{font-size:15px;font-weight:600;margin:16px 0 8px}
.md-body ul,.md-body ol{margin:0 0 14px;padding-left:1.35em;display:flex;flex-direction:column;gap:6px}
.md-body li::marker{color:var(--t3)}
.md-body a{color:var(--acc);text-decoration:none;border-bottom:1px solid color-mix(in srgb,var(--acc) 35%,transparent)}
.md-body strong{font-weight:600}
.md-body blockquote{margin:0 0 14px;padding:10px 14px;border-left:3px solid var(--acc);background:var(--subtle);border-radius:0 8px 8px 0;color:var(--t2);font-size:14.5px}
.md-body code{font-family:'JetBrains Mono',monospace;font-size:.86em;background:var(--muted);padding:1px 5px;border-radius:4px}
.md-body pre{margin:0 0 14px;padding:14px;background:var(--muted);border-radius:10px;overflow-x:auto;white-space:pre-wrap;overflow-wrap:anywhere}
.md-body pre code{background:none;padding:0}
.md-body hr{border:0;border-top:1px solid var(--bd2);margin:20px 0}
.md-body table{width:100%;border-collapse:collapse;font-size:13.5px;margin:0 0 14px}
.md-body th,.md-body td{border:1px solid var(--bd);padding:7px 9px;text-align:left}
.md-body th{background:var(--subtle);font-weight:600}
.md-body img{max-width:100%;border-radius:10px}

/* ---- 骨架屏 ---- */
@keyframes ocd-shimmer{0%{opacity:.45}50%{opacity:.9}100%{opacity:.45}}
.skel{background:var(--muted);border-radius:10px;animation:ocd-shimmer 1.4s ease-in-out infinite}

/* ---- Toast ---- */
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(max(10px,env(safe-area-inset-bottom)) + 84px);background:var(--elev);color:var(--t1);border:1px solid var(--bd);border-radius:12px;padding:10px 18px;font-size:13px;z-index:60;box-shadow:0 8px 30px rgba(0,0,0,.25);max-width:82%;text-align:center}
.toast-acc{border-color:color-mix(in srgb,var(--acc) 45%,transparent)}

/* ---- 空态 / 错误 ---- */
.empty{padding:48px 24px;text-align:center;color:var(--t3);font-size:13.5px;line-height:1.7}
.empty b{display:block;color:var(--t2);font-size:15px;margin-bottom:6px;font-family:'Fraunces',serif;font-weight:600}
.retry-btn{margin-top:14px;display:inline-block;padding:9px 22px;border-radius:12px;background:var(--subtle);color:var(--t1);font-size:13px;border:1px solid var(--bd);cursor:pointer}

/* ---- 折叠 FAQ ---- */
.faq-item{border:1px solid var(--bd);border-radius:14px;margin-bottom:10px;overflow:hidden;background:var(--elev)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:13px 15px;font-size:14px;font-weight:600;cursor:pointer;color:var(--t1)}
.faq-q svg{width:16px;height:16px;flex-shrink:0;color:var(--t3);transition:transform .2s}
.faq-item.open .faq-q svg{transform:rotate(45deg)}
.faq-a{display:none;padding:0 15px 13px;font-size:13.5px;line-height:1.7;color:var(--t2);overflow-wrap:anywhere}
.faq-item.open .faq-a{display:block}

/* ---- 通用底栏动作条（二级页） ---- */
.subnav{display:flex;align-items:center;gap:2px;padding:max(10px,calc(env(safe-area-inset-top) + 6px)) 14px 10px;flex-shrink:0;position:sticky;top:0;background:var(--glass);-webkit-backdrop-filter:blur(28px) saturate(185%);backdrop-filter:blur(28px) saturate(185%);border-bottom:1px solid var(--bd2);z-index:5}
.subnav .cat{flex:1;text-align:center;font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.14em;color:var(--t3);text-transform:uppercase;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* seg 分段控件可点 */
.seg{cursor:pointer}
.seg span{cursor:pointer;transition:all .15s}
.sw2{cursor:pointer}

/* 语言切换按钮态 */
.lang-opts span{opacity:.5}
.lang-opts .on{opacity:1}

/* 活动指示（AI 输入中） */
@keyframes ocd-blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
.typing i{width:5px;height:5px;border-radius:50%;background:var(--t3);display:inline-block;animation:ocd-blink 1.2s infinite}
.typing i:nth-child(2){animation-delay:.2s}
.typing i:nth-child(3){animation-delay:.4s}


/* ============ CANVAS（画布层，非 app UI） ============ */
*{margin:0;padding:0;box-sizing:border-box;-webkit-font-smoothing:antialiased}
body{background:#131110;color:#EDEAE3;font-family:'Inter',-apple-system,sans-serif;padding:64px 48px 96px}
.mono{font-family:'JetBrains Mono',monospace}
.serif{font-family:'Fraunces',Georgia,serif}

.screen{width:100%;height:100dvh;border-radius:0;overflow:hidden;position:relative;display:flex;flex-direction:column}

.s-light{--bg:#FBFAF7;--subtle:#F4F2EC;--muted:#ECE9E1;--elev:#FFFFFF;--t1:#1B1A23;--t2:#56555F;--t3:#6B6760;--acc:#0B7B5E;--accH:#086049;--accL:#E6F4EE;--gold:#8F6530;--goldRaw:#B8843C;--danger:#C0392B;--dangerL:#FBEDEB;--bd:#E2DED4;--bd2:#EFEBE2;--glass:rgba(251,250,247,.72);--glassBd:rgba(27,26,35,.08);--glassHi:rgba(255,255,255,.55);background:var(--bg);color:var(--t1)}
.s-dark{--bg:#0E0D0B;--subtle:#181613;--muted:#211E1A;--elev:#1A1815;--t1:#EDEAE3;--t2:#A8A499;--t3:#96939E;--acc:#34D399;--accH:#6EE7B7;--accL:#0C2E22;--gold:#F0B860;--goldRaw:#F0B860;--danger:#E74C3C;--dangerL:#2B1310;--bd:#2B2722;--bd2:#211E1A;--glass:rgba(20,18,15,.62);--glassBd:rgba(237,234,227,.1);--glassHi:rgba(255,255,255,.08);background:var(--bg);color:var(--t1)}
.s-green{--bg:#0C2E22;--subtle:#0A261C;--muted:#0F3A2B;--elev:#11503B;--t1:#EDEAE3;--t2:#A8C7B8;--t3:#7FA693;--acc:#34D399;--accH:#6EE7B7;--accL:#0C2E22;--gold:#F0B860;--goldRaw:#F0B860;--danger:#E74C3C;--dangerL:#2B1310;--bd:#1B5A43;--bd2:#164A36;--glass:rgba(12,46,34,.66);--glassBd:rgba(237,234,227,.12);--glassHi:rgba(255,255,255,.09);background:var(--bg);color:var(--t1)}

/* 状态栏 + 灵动岛 */
.s-light .sb{color:#1B1A23}
.body{flex:1;overflow:hidden;display:flex;flex-direction:column;min-height:0}
.pad{padding:0 22px}

/* App 头部 */
.app-head{padding:10px 22px 2px;display:flex;align-items:flex-start;justify-content:space-between;flex-shrink:0}
.app-title{font-family:'Fraunces',serif;font-size:28px;font-weight:600;letter-spacing:-.015em;line-height:1.1}
.app-date{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--t3);letter-spacing:.1em;margin-top:6px}
.icon-btn{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:12px;color:var(--t1);position:relative}
.icon-btn svg{width:21px;height:21px}
.icon-btn .dot{position:absolute;top:10px;right:10px;width:8px;height:8px;border-radius:50%;background:var(--danger)}

/* 标签条（iOS 26 毛玻璃浮动胶囊，5 Tab 均分，问 AI 居中） */
.tabbar{flex-shrink:0;margin:0 12px 10px;height:66px;border-radius:27px;display:flex;align-items:stretch;background:var(--glass);-webkit-backdrop-filter:blur(28px) saturate(185%);backdrop-filter:blur(28px) saturate(185%);border:1px solid var(--glassBd);box-shadow:0 12px 36px rgba(0,0,0,.14),inset 0 1px 0 var(--glassHi)}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:var(--t3);font-size:10px;letter-spacing:.02em}
.tab svg{width:23px;height:23px}
.tab.on{color:var(--acc);font-weight:600}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--bd);border-radius:999px;padding:7px 13px;font-size:12px;color:var(--t2);white-space:nowrap}
.chip.on{background:var(--t1);color:var(--bg);border-color:var(--t1);font-weight:500}
.tag{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.12em;padding:3px 8px;border-radius:5px;white-space:nowrap}
.hairline{height:1px;background:var(--bd);border:0}
.btn{display:flex;align-items:center;justify-content:center;gap:8px;height:50px;border-radius:14px;font-size:15px;font-weight:600}
.btn svg{width:18px;height:18px}
.btn-acc{background:var(--acc);color:#fff}
.s-dark .btn-acc,.s-green .btn-acc{background:var(--acc);color:#0E0D0B}
.btn-line{border:1px solid var(--bd);color:var(--t1);font-weight:500;background:transparent}

/* —— S1 今日 —— */
.alert-card{margin:8px 22px 0;background:var(--subtle);border:1px solid var(--bd2);border-left:3px solid var(--goldRaw);border-radius:14px;padding:11px 16px;display:flex;gap:12px;align-items:flex-start}
.alert-card svg{width:19px;height:19px;stroke:var(--gold);flex-shrink:0;margin-top:2px}
.alert-k{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.16em;color:var(--gold);margin-bottom:5px}
.alert-t{font-size:14px;font-weight:600;line-height:1.45}
.alert-d{font-size:12px;color:var(--t2);margin-top:4px;line-height:1.5}
.lesson{margin:8px 22px 0;background:var(--accL);border-radius:16px;padding:12px 16px}
.lesson-k{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.18em;color:var(--acc);margin-bottom:8px;display:flex;justify-content:space-between}
.lesson-t{font-family:'Fraunces',serif;font-size:21px;font-weight:600;letter-spacing:-.01em}
.lesson-en{font-family:'Fraunces',serif;font-style:italic;font-size:14px;color:var(--acc);margin-left:6px}
.lesson-d{font-size:12.5px;line-height:1.66;color:var(--t2);margin-top:8px}
.sec-label{padding:11px 22px 7px;display:flex;align-items:baseline;justify-content:space-between}
.sec-label h3{font-family:'Fraunces',serif;font-size:18px;font-weight:600}
.sec-label span{font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.1em;color:var(--t3)}
.art{padding:8px 22px;display:flex;flex-direction:column;gap:4px}
.art-meta{display:flex;align-items:center;gap:8px}
.art-meta time{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.1em;color:var(--t3)}
.art h4{font-family:'Fraunces',serif;font-size:16.5px;font-weight:600;line-height:1.34;letter-spacing:-.005em}
.art p{font-size:12px;line-height:1.55;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.series{margin:8px 22px 10px;border:1px solid var(--bd);border-radius:16px;padding:12px 16px}
.series-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:9px}
.series-t{font-size:14px;font-weight:600}
.series-t span{font-family:'Fraunces',serif;font-style:italic;color:var(--gold);font-weight:500}
.series-meta{font-family:'JetBrains Mono',monospace;font-size:10px;color:var(--t3);letter-spacing:.08em}
.bar{height:5px;border-radius:3px;background:var(--muted);overflow:hidden}
.bar i{display:block;height:100%;border-radius:3px;background:var(--acc)}
.series-bot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:8px}
.series-bot .series-meta{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.series-link{flex-shrink:0;white-space:nowrap}
.series-link{font-size:12.5px;color:var(--acc);font-weight:600;display:flex;align-items:center;gap:4px}
.series-link svg{width:14px;height:14px}

/* —— S2 文章 —— */
.read-nav{height:56px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 10px 0 16px}
.read-nav .cat{font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:.2em;color:var(--acc)}
.read-nav .acts{display:flex}
.progress-thin{height:2.5px;background:var(--bd2);flex-shrink:0}
.progress-thin i{display:block;height:100%;width:62%;background:var(--acc)}
.article{padding:18px 24px 12px;overflow:hidden}
.article h1{font-family:'Fraunces',serif;font-size:25px;font-weight:600;line-height:1.26;letter-spacing:-.012em}
.art-meta2{display:flex;gap:10px;align-items:center;margin:12px 0 16px;font-family:'JetBrains Mono',monospace;font-size:10px;color:var(--t3);letter-spacing:.06em}
.verdict{background:var(--accL);border-radius:14px;padding:14px 16px;margin-bottom:18px}
.verdict-k{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.18em;color:var(--acc);margin-bottom:7px}
.verdict p{font-size:13.5px;line-height:1.66;font-weight:500}
.article .para{font-size:14px;line-height:1.78;color:var(--t1)}
.article .para + .para{margin-top:12px}
.article .para em{font-family:'Fraunces',serif;font-style:italic}
.hash{font-family:'JetBrains Mono',monospace;font-size:11.5px;background:var(--muted);border-radius:5px;padding:1px 6px;color:var(--t1)}
.evidence{border:1px solid var(--bd);border-radius:14px;margin-top:16px;overflow:hidden}
.evidence-k{display:flex;justify-content:space-between;align-items:center;padding:11px 15px;border-bottom:1px solid var(--bd2)}
.evidence-k span{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.18em;color:var(--t3)}
.evidence pre{font-family:'JetBrains Mono',monospace;font-size:11px;line-height:1.9;padding:12px 15px;color:var(--t2);white-space:pre}
.evidence pre b{color:var(--danger);font-weight:500}
.evidence pre i{color:var(--acc);font-style:normal}
.tline{margin-top:16px;padding-left:2px}
.tline-row{display:flex;gap:12px;position:relative;padding-bottom:14px}
.tline-row::before{content:"";position:absolute;left:4.5px;top:14px;bottom:-2px;width:1px;background:var(--bd)}
.tline-row:last-child::before{display:none}
.tline-dot{width:10px;height:10px;border-radius:50%;border:2px solid var(--acc);background:var(--bg);flex-shrink:0;margin-top:4px;position:relative;z-index:1}
.tline-t{font-size:12.5px;line-height:1.5}
.tline-t b{font-family:'JetBrains Mono',monospace;font-size:10px;color:var(--t3);font-weight:400;display:block;margin-bottom:2px;letter-spacing:.06em}
.read-foot{flex-shrink:0;height:74px;border-top:1px solid var(--bd);display:flex;align-items:center;justify-content:space-between;padding:0 20px;background:var(--bg)}
.read-foot .aa{font-family:'Fraunces',serif;font-size:19px;font-weight:500;display:flex;gap:3px;align-items:baseline}
.read-foot .aa small{font-size:12px;color:var(--t3)}
.read-foot .acts{display:flex;gap:2px}

/* —— S3/S4 Ask AI —— */
.ask-sub{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.14em;color:var(--t3);margin-top:6px}
.msgs{flex:1;overflow:hidden;padding:14px 18px 8px}
.msg{max-width:86%;margin-bottom:12px;font-size:13.5px;line-height:1.62}
.msg.ai{background:var(--elev);border:1px solid var(--bd2);border-radius:16px;border-top-left-radius:5px;padding:12px 14px}
.msg.me{margin-left:auto;background:var(--acc);color:#fff;border-radius:16px;border-top-right-radius:5px;padding:11px 14px;font-weight:500}
.s-dark .msg.me{color:#0E0D0B}
.msg .mh{font-size:13.5px;font-weight:600;display:flex;gap:6px;align-items:center;margin-bottom:7px}
.msg .mh svg{width:15px;height:15px;flex-shrink:0}
.msg ul{padding-left:17px;margin:7px 0}
.msg li{margin-bottom:5px}
.msg li:last-child{margin-bottom:0}
.msg .srcs{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.src{display:inline-flex;align-items:center;gap:5px;font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.04em;color:var(--acc);background:var(--accL);border:1px solid var(--acc);border-radius:6px;padding:4px 8px}
.src svg{width:10px;height:10px;stroke:var(--acc)}
.msg .fine{font-size:10px;color:var(--t3);margin-top:9px;line-height:1.5}
.typing{display:inline-flex;gap:5px;padding:14px 16px;background:var(--elev);border:1px solid var(--bd2);border-radius:16px;border-top-left-radius:5px}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--t2)}
.typing i:nth-child(2){opacity:.6}
.typing i:nth-child(3){opacity:.3}
.quick{display:flex;gap:8px;padding:2px 18px 12px;flex-wrap:wrap}
.ask-input{margin:0 22px 10px;display:flex;gap:9px;align-items:center;padding:8px;border-radius:18px;background:var(--elev);border:1px solid var(--bd);box-shadow:0 6px 20px rgba(0,0,0,.06)}
.ask-input .txt{flex:1;font-size:13px;color:var(--t3);padding:0 6px}
.ask-input .txt.typed{color:var(--t1)}
.ask-send{width:44px;height:44px;border-radius:14px;background:var(--acc);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.ask-send svg{width:19px;height:19px;stroke:#fff}
.s-dark .ask-send svg{stroke:#0E0D0B}
.ask-foot{padding:0 22px 12px;text-align:center;font-family:'JetBrains Mono',monospace;font-size:8.5px;letter-spacing:.12em;color:var(--t3)}

/* —— S5 词汇 —— */
.searchbar{margin:6px 22px 0;height:48px;border:1px solid var(--bd);border-radius:14px;background:var(--elev);display:flex;align-items:center;gap:10px;padding:0 15px}
.searchbar svg{width:18px;height:18px;stroke:var(--t3)}
.searchbar span{font-size:14px;color:var(--t3)}
.gl-chips{display:flex;gap:7px;padding:14px 20px 4px;overflow:hidden}
.letter{font-family:'Fraunces',serif;font-size:15px;font-weight:600;color:var(--t3);padding:14px 22px 6px;display:flex;justify-content:space-between;align-items:baseline}
.letter span{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.12em;color:var(--bd);color:var(--t3);opacity:.7}
.term{padding:11px 22px;display:flex;justify-content:space-between;align-items:center;gap:10px}
.term b{font-size:14.5px;font-weight:500}
.term i{font-family:'Fraunces',serif;font-size:12.5px;color:var(--t3);font-style:italic;white-space:nowrap}
.term-open{margin:2px 22px 8px;background:var(--elev);border:1px solid var(--bd2);border-radius:14px;padding:14px 16px}
.term-open h4{font-size:15.5px;font-weight:600;display:flex;align-items:baseline;gap:8px}
.term-open h4 span{font-family:'Fraunces',serif;font-style:italic;font-size:13px;color:var(--t3);font-weight:400}
.term-open p{font-size:12.5px;line-height:1.66;color:var(--t2);margin-top:7px}
.term-open .rel{margin-top:10px;font-size:12px;color:var(--acc);font-weight:600;display:flex;align-items:center;gap:4px}
.term-open .rel svg{width:13px;height:13px}
.gl-foot{margin-top:auto;padding:14px 22px 12px;text-align:center;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.14em;color:var(--t3)}

/* —— S6 测验 —— */
.qz-head{padding:12px 22px 0;display:flex;justify-content:space-between;align-items:flex-start}
.qz-head h2{font-family:'Fraunces',serif;font-size:24px;font-weight:600;letter-spacing:-.01em}
.qz-head .sub{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.14em;color:var(--t3);margin-top:6px}
.streak{display:flex;align-items:center;gap:6px;border:1px solid var(--bd);border-radius:999px;padding:7px 12px;font-family:'JetBrains Mono',monospace;font-size:10.5px;color:var(--gold)}
.streak svg{width:14px;height:14px;stroke:var(--gold)}
.qz-prog{margin:18px 22px 0;display:flex;gap:4px}
.qz-prog i{flex:1;height:4px;border-radius:2px;background:var(--muted)}
.qz-prog i.done{background:var(--acc)}
.qz-prog i.cur{background:var(--gold)}
.qz-q{padding:22px 22px 0}
.qz-q .scene{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.18em;color:var(--acc);margin-bottom:10px}
.qz-q p{font-family:'Fraunces',serif;font-size:20px;font-weight:500;line-height:1.42;letter-spacing:-.005em}
.opt{margin:10px 22px 0;border:1px solid var(--bd);border-radius:14px;padding:14px 15px;display:flex;gap:12px;align-items:center}
.opt .key{width:26px;height:26px;border-radius:8px;background:var(--muted);display:flex;align-items:center;justify-content:center;font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--t2);flex-shrink:0}
.opt p{font-size:13.5px;line-height:1.5;flex:1}
.opt.on{border-color:var(--acc);background:var(--accL)}
.opt.on .key{background:var(--acc);color:#0E0D0B}
.opt.on p{font-weight:600}
.qz-nav{margin:18px 22px 0;display:flex;justify-content:space-between;align-items:center}
.qz-nav .prev{font-size:13.5px;color:var(--t3);display:flex;align-items:center;gap:5px}
.qz-nav .prev svg{width:15px;height:15px}
.qz-next{display:flex;align-items:center;gap:6px;background:var(--acc);color:#0E0D0B;font-weight:600;font-size:14px;border-radius:999px;padding:12px 22px}
.qz-next svg{width:15px;height:15px;stroke:#0E0D0B}

/* —— S7 结果 —— */
.rs{align-items:center;text-align:center;padding:0 30px}
.rs-k{font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.24em;color:var(--acc);margin-top:34px}
.rs-badge{width:84px;height:84px;border-radius:50%;border:1.5px solid var(--bd);display:flex;align-items:center;justify-content:center;margin:20px auto 0}
.rs-badge svg{width:38px;height:38px;stroke:var(--acc)}
.rs h1{font-family:'Fraunces',serif;font-size:42px;font-weight:600;letter-spacing:-.02em;margin-top:18px;line-height:1.1}
.rs .en{font-family:'Fraunces',serif;font-style:italic;font-size:17px;color:var(--acc);margin-top:6px}
.rs .desc{font-size:13px;line-height:1.75;color:var(--t2);margin-top:14px;max-width:290px}
.traits{width:100%;margin-top:26px;display:flex;flex-direction:column;gap:13px;text-align:left}
.tr .tt{display:flex;justify-content:space-between;font-size:12px;margin-bottom:6px}
.tr .tt b{font-weight:500}
.tr .tt span{font-family:'JetBrains Mono',monospace;font-size:10.5px;color:var(--t3)}
.tr .bar i{background:var(--acc)}
.rs-cta{width:100%;margin-top:26px}
.rs-links{margin-top:16px;display:flex;gap:18px;justify-content:center;font-size:12.5px;color:var(--t2)}
.rs-links u{cursor:pointer}

/* —— S8 我的 —— */
.me-head{padding:12px 22px 0;display:flex;align-items:center;justify-content:space-between}
.me-streak{display:flex;align-items:baseline;gap:10px}
.me-streak b{font-family:'Fraunces',serif;font-size:52px;font-weight:600;letter-spacing:-.03em;line-height:1}
.me-streak .u{font-size:13px;color:var(--t2)}
.me-streak .u i{font-family:'Fraunces',serif;font-style:italic;display:block;font-size:13px;color:var(--gold)}
.cal{margin:16px 22px 0;background:var(--elev);border:1px solid var(--bd2);border-radius:16px;padding:14px 16px}
.cal-grid{display:grid;grid-template-columns:repeat(14,1fr);gap:6px}
.cal-grid i{aspect-ratio:1;border-radius:50%;background:var(--muted)}
.cal-grid i.f{background:var(--accL);border:1px solid var(--acc)}
.cal-grid i.t{background:var(--goldRaw);border:1px solid var(--gold)}
.cal-cap{display:flex;justify-content:space-between;margin-top:11px;font-family:'JetBrains Mono',monospace;font-size:9px;letter-spacing:.1em;color:var(--t3)}
.me-row{display:flex;align-items:center;gap:12px;padding:7px 22px}
.me-row .ic{width:34px;height:34px;border-radius:10px;background:var(--subtle);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.me-row .ic svg{width:17px;height:17px;stroke:var(--acc)}
.me-row .tx{flex:1;min-width:0}
.me-row .tx b{font-size:13.5px;font-weight:500;display:block}
.me-row .tx span{font-size:11px;color:var(--t3)}
.me-row .rt{font-size:12px;color:var(--t3);display:flex;align-items:center;gap:4px}
.me-row .rt svg{width:14px;height:14px;stroke:var(--t3)}
.seg{display:flex;background:var(--muted);border-radius:9px;padding:2.5px;font-size:11.5px}
.seg span{padding:5px 11px;border-radius:7px;color:var(--t2)}
.seg span.on{background:var(--elev);color:var(--t1);font-weight:600;box-shadow:0 1px 3px rgba(0,0,0,.08)}
.me-about{margin-top:auto;padding:10px 22px 10px;text-align:center;font-size:11.5px;color:var(--t3)}
 .about-icons{display:flex;justify-content:center;gap:6px;margin-bottom:12px}
.ai2{display:flex;flex-direction:column;align-items:center;gap:6px;padding:0 8px}
.ai2 .ic2{width:44px;height:44px;border-radius:50%;background:var(--subtle);border:1px solid var(--bd2);display:flex;align-items:center;justify-content:center}
.ai2 .ic2 svg{width:19px;height:19px;stroke:var(--t2)}
.ai2 span{font-size:9.5px;color:var(--t2)}
/* —— S16–S19 二级页 —— */
.lg-wrap{padding:6px 24px 16px}
.lg-title{font-family:'Fraunces',serif;font-size:24px;font-weight:600;letter-spacing:-.012em;line-height:1.2}
.lg-upd{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.14em;color:var(--t3);margin-top:7px}
.lg-card{background:var(--accL);border-radius:14px;padding:13px 15px;margin-top:14px;font-size:13px;line-height:1.62;font-weight:500}
.lg-p{font-size:13px;line-height:1.7;color:var(--t2);margin-top:12px}
.lg-h{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.18em;color:var(--t3);margin:18px 0 4px}
.lg-li{display:flex;gap:11px;padding:9px 0;align-items:flex-start}
.lg-li svg{width:16px;height:16px;flex-shrink:0;margin-top:2px}
.lg-li b{font-size:13px;font-weight:600;display:block}
.lg-li p{font-size:11.5px;color:var(--t2);line-height:1.5;margin-top:2px}
.lg-stats{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.1em;color:var(--acc);margin-top:12px}
.lg-contact{margin-top:14px;border:1px solid var(--bd);border-radius:14px;padding:12px 14px}
.lg-ct{display:flex;align-items:center;gap:12px;padding:8px 0}
.lg-ct .ic{width:36px;height:36px;border-radius:50%;background:var(--subtle);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.lg-ct .ic svg{width:17px;height:17px;stroke:var(--acc)}
.lg-ct b{font-size:13.5px;font-weight:600;display:block}
.lg-ct span{font-family:'JetBrains Mono',monospace;font-size:10.5px;color:var(--t2)}
.lg-contact b{font-size:13px;font-weight:600;display:block;margin-bottom:4px}
.lg-contact span{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--acc)}
.lg-toc{font-family:'JetBrains Mono',monospace;font-size:8.5px;letter-spacing:.12em;color:var(--t3);line-height:1.8;margin-top:14px}
.lg-dc{background:var(--dangerL);border-left:3px solid var(--danger);border-radius:12px;padding:13px 15px;margin-top:14px;font-size:13px;line-height:1.6}
.lg-dc b{color:var(--danger)}

/* —— S9 Yellow Paper —— */
.yp-quote{border-left:2px solid var(--goldRaw);padding:2px 0 2px 14px;margin-top:12px}
.yp-quote p{font-family:'Fraunces',serif;font-style:italic;font-size:15px;line-height:1.55;color:var(--t2)}
.yp-quote span{font-family:'JetBrains Mono',monospace;font-size:9px;letter-spacing:.14em;color:var(--t3);display:block;margin-top:7px}
.yp-score{display:flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.1em;color:var(--acc)}
.yp-expl{margin:10px 22px 0;background:var(--accL);border-radius:12px;padding:11px 14px}
.yp-expl b{font-family:'JetBrains Mono',monospace;font-size:9px;letter-spacing:.16em;color:var(--acc);display:block;margin-bottom:5px}
.yp-expl p{font-size:12px;line-height:1.6}

/* —— S10 自救流程 —— */
.vr-banner{margin:8px 22px 0;background:var(--dangerL);border-radius:14px;padding:11px 14px;display:flex;gap:10px;align-items:flex-start}
.vr-banner svg{width:18px;height:18px;stroke:var(--danger);flex-shrink:0;margin-top:1px}
.vr-banner p{font-size:12.5px;line-height:1.6}
.vr-banner b{color:var(--danger)}
.vr-step{display:flex;gap:14px;padding:11px 22px;position:relative}
.vr-step::before{content:"";position:absolute;left:35px;top:46px;bottom:-4px;width:1.5px;background:var(--bd)}
.vr-step:last-child::before{display:none}
.vr-num{width:28px;height:28px;border-radius:50%;border:1.5px solid var(--acc);color:var(--acc);font-family:'JetBrains Mono',monospace;font-size:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0;position:relative;z-index:1;background:var(--bg)}
.vr-t{flex:1}
.vr-h{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.vr-h b{font-size:14.5px;font-weight:600}
.vr-h span{font-family:'JetBrains Mono',monospace;font-size:9px;letter-spacing:.1em;color:var(--gold)}
.vr-t p{font-size:12px;line-height:1.55;color:var(--t2);margin-top:3px}

/* —— S11 分享卡片 —— */
.sh-nav{padding:60px 22px 4px;display:flex;justify-content:space-between;align-items:center}
.sh-nav span{font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.2em;color:var(--t3)}
.sc-card{margin:10px 30px 0;background:var(--elev);border:1px solid var(--bd);border-radius:20px;padding:22px 20px 16px}
.sc-k{font-family:'JetBrains Mono',monospace;font-size:9px;letter-spacing:.2em;color:var(--acc);margin-bottom:10px;display:flex;justify-content:space-between}
.sc-name{font-family:'Fraunces',serif;font-size:34px;font-weight:600;letter-spacing:-.02em}
.sc-en{font-family:'Fraunces',serif;font-style:italic;font-size:15px;color:var(--acc);margin-top:3px}
.sc-desc{font-size:11.5px;line-height:1.65;color:var(--t2);margin-top:9px}
.sc-traits{margin-top:15px;display:flex;flex-direction:column;gap:9px}
.sc-foot{display:flex;justify-content:space-between;align-items:flex-end;margin-top:16px;padding-top:13px;border-top:1px solid var(--bd2)}
.sc-brand{font-family:'JetBrains Mono',monospace;font-size:8.5px;letter-spacing:.14em;color:var(--t3);line-height:1.8}
.qr{width:52px;height:52px;border-radius:8px;border:1px solid var(--bd);display:flex;align-items:center;justify-content:center}
.sh-row{display:flex;gap:10px;margin:16px 30px 0}
.sh-row .btn{flex:1;height:46px;font-size:13px}
.sh-hint{text-align:center;font-size:10.5px;color:var(--t3);margin-top:11px}

/* —— S12 通知中心 —— */
.ntf-seg{display:flex;gap:8px;padding:6px 22px 6px}
.ntf-row{display:flex;gap:12px;padding:11px 22px;align-items:flex-start}
.ntf-ico{width:36px;height:36px;border-radius:11px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.ntf-ico svg{width:17px;height:17px}
.n-danger{background:var(--dangerL)}.n-danger svg{stroke:var(--danger)}
.n-acc{background:var(--accL)}.n-acc svg{stroke:var(--acc)}
.n-gold{background:rgba(184,132,60,.13)}.n-gold svg{stroke:var(--gold)}
.n-mut{background:var(--subtle)}.n-mut svg{stroke:var(--t2)}
.ntf-t{flex:1;min-width:0}
.ntf-t b{font-size:13.5px;font-weight:600;display:block;line-height:1.4}
.ntf-t span{font-size:11.5px;color:var(--t2);line-height:1.5;display:block;margin-top:2px}
.ntf-meta{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex-shrink:0}
.ntf-time{font-family:'JetBrains Mono',monospace;font-size:9px;color:var(--t3);letter-spacing:.06em}
.ntf-dot{width:8px;height:8px;border-radius:50%;background:var(--acc)}
.ntf-foot{margin-top:auto;padding:12px 22px 140px;text-align:center;font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.14em;color:var(--t3)}

/* —— S13 新手引导 —— */
.ob-skip{padding:60px 22px 0;display:flex;justify-content:flex-end}
.ob-skip span{font-size:13px;color:var(--t3)}
.ob-art{margin:30px auto 0;width:250px;height:250px;position:relative;display:flex;align-items:center;justify-content:center}
.ob-ring{position:absolute;border:1px solid var(--bd);border-radius:50%}
.ob-core{width:104px;height:104px;border-radius:30px;background:var(--accL);display:flex;align-items:center;justify-content:center;transform:rotate(45deg)}
.ob-core svg{width:46px;height:46px;stroke:var(--acc);transform:rotate(-45deg)}
.ob-txt{padding:32px 40px 0;text-align:center}
.ob-txt h1{font-family:'Fraunces',serif;font-size:29px;font-weight:600;letter-spacing:-.015em;line-height:1.25}
.ob-txt h1 em{font-style:italic;color:var(--acc)}
.ob-txt p{font-size:13px;line-height:1.7;color:var(--t2);margin-top:12px}
.ob-dots{display:flex;gap:7px;justify-content:center;margin-top:28px}
.ob-dots i{width:7px;height:7px;border-radius:4px;background:var(--muted)}
.ob-dots i.on{width:22px;background:var(--acc)}
.ob-cta{margin:24px 40px 0}
.ob-second{text-align:center;margin-top:13px;font-size:13px;color:var(--t3)}

/* —— S14 黄皮书专题 —— */
.yp-hero{margin:8px 22px 0;background:var(--accL);border-radius:16px;padding:14px 16px}
.yp-hero p{font-size:12.5px;line-height:1.66;margin-top:8px}
.yp-hero .stats{display:flex;gap:14px;margin-top:10px;font-family:'JetBrains Mono',monospace;font-size:9px;letter-spacing:.12em;color:var(--acc)}
.tax-row{display:flex;gap:13px;padding:11px 22px;align-items:flex-start}
.tax-num{font-family:'Fraunces',serif;font-size:19px;font-weight:600;color:var(--gold);width:26px;flex-shrink:0;text-align:center;line-height:1.2}
.tax-t b{font-size:14px;font-weight:600;display:block}
.tax-t b i{font-family:'JetBrains Mono',monospace;font-style:normal;font-size:9px;letter-spacing:.12em;color:var(--t3);margin-left:7px}
.tax-t p{font-size:11.5px;line-height:1.5;color:var(--t2);margin-top:2px}
.yp-dl{display:flex;gap:9px;margin:8px 22px 12px}
.yp-dl .btn{height:44px;font-size:12.5px;white-space:nowrap}.yp-dl .btn-acc{flex:1.7}.yp-dl .btn-line{flex:1}

/* —— S15 搜索 —— */
.srch-bar{margin:10px 22px 0;height:54px;border:1px solid var(--acc);border-radius:16px;background:var(--elev);display:flex;align-items:center;gap:10px;padding:0 16px;box-shadow:0 0 0 3px var(--accL)}
.srch-bar svg{width:19px;height:19px;stroke:var(--acc)}
.srch-bar b{font-size:15px;font-weight:500;flex:1}
.srch-head{align-items:center;padding-bottom:0}
.srch-cancel{flex-shrink:0;font-size:14.5px;font-weight:600;color:var(--acc);padding:12px 0 12px 14px}
.srch-clear{width:16px;height:16px;stroke:var(--t3);flex-shrink:0}
.hl{color:var(--acc);font-weight:600;background:var(--accL);border-radius:3px;padding:0 2px}
.best{margin:12px 22px 0;background:var(--elev);border:1px solid var(--bd);border-radius:14px;padding:13px 15px}
.best-k{font-family:'JetBrains Mono',monospace;font-size:9px;letter-spacing:.16em;color:var(--acc);margin-bottom:6px}
.best b{font-size:15.5px;font-weight:600}
.best i{font-family:'Fraunces',serif;font-size:13px;color:var(--t3);font-style:italic;margin-left:7px}
.best p{font-size:12px;line-height:1.6;color:var(--t2);margin-top:6px}
.srch-row{display:flex;align-items:center;gap:11px;padding:11px 22px}
.srch-row .ic{width:32px;height:32px;border-radius:9px;background:var(--subtle);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.srch-row .ic svg{width:15px;height:15px;stroke:var(--t2)}
.srch-row .tx{flex:1;min-width:0;font-size:13.5px;line-height:1.4}
.srch-row .tx small{display:block;font-size:10.5px;color:var(--t3);margin-top:1px;font-family:'JetBrains Mono',monospace}
.srch-foot{margin-top:auto;padding:12px 22px 14px;text-align:center;font-family:'JetBrains Mono',monospace;font-size:9px;letter-spacing:.14em;color:var(--t3)}

/* 页脚 */
.next{border-top:1px solid #2B2722;padding-top:44px;display:flex;flex-wrap:wrap;gap:40px}
.next-col{flex:1;min-width:300px}
.next-col h3{font-family:'Fraunces',serif;font-size:21px;font-weight:500;margin-bottom:16px}
.next-col li{list-style:none;font-size:13.5px;line-height:1.7;color:#A8A499;padding-left:18px;position:relative;margin-bottom:9px}
.next-col li::before{content:"—";position:absolute;left:0;color:#34D399}
.next-col li b{color:#EDEAE3;font-weight:500}

/* ---- App 层补充（mockup 未覆盖的交互态） ---- */
/* AI 来源 chips */
.srcs{margin-top:10px;border-top:1px dashed var(--bd);padding-top:9px}
.srcs-k{font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.14em;color:var(--t3);margin-bottom:7px}
.src-chip{display:inline-block;margin:0 6px 6px 0;padding:5px 11px;border-radius:999px;background:var(--accL);color:var(--acc);font-size:11.5px;font-weight:500;cursor:pointer;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 测验错误态 */
.opt.wrong{border-color:var(--danger)!important;background:var(--dangerL)!important}
.opt.wrong .key{background:var(--danger);color:#fff}
.opt.wrong p{color:var(--danger)}

/* 开关 on 态 */
.sw2.on{background:var(--acc)}
.sw2.on i{transform:translateX(16px)}

/* ask 输入框真实 input */
.ask-input input.txt{border:0;outline:0;background:transparent;font-family:inherit;font-size:14px;color:var(--t1)}
.ask-input input.txt::placeholder{color:var(--t3);font-size:13px}

/* quiz 选项 .opt 基础（若 mockup 未含） */
.opt{display:flex;gap:12px;align-items:flex-start;padding:14px 15px;border:1px solid var(--bd);border-radius:14px;margin-bottom:10px;cursor:pointer;transition:border-color .15s,background .15s}
.opt:active{background:var(--subtle)}
.opt .key{width:22px;height:22px;border-radius:7px;background:var(--muted);color:var(--t2);font-family:'JetBrains Mono',monospace;font-size:11px;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}
.opt p{font-size:14px;line-height:1.55;color:var(--t1)}
.opt.on{border-color:var(--acc);background:var(--accL)}
.opt.on .key{background:var(--acc);color:#fff}

/* quiz 进度点 */
.qz-prog{display:flex;gap:4px;margin-bottom:14px}
.qz-prog i{flex:1;height:3px;border-radius:2px;background:var(--muted)}
.qz-prog i.done{background:var(--acc)}
.qz-prog i.cur{background:var(--gold)}

/* quiz 导航 */
.qz-nav{display:flex;justify-content:space-between;align-items:center;padding:8px 2px 20px}
.qz-nav .prev{font-size:13px;color:var(--t3);cursor:pointer;padding:8px 10px}
.qz-next{font-size:13px;font-weight:600;color:var(--acc);cursor:pointer;padding:8px 18px;border-radius:12px;background:var(--accL)}

/* 黄皮书解析块（补 wrong/correct 头部着色） */
.yp-expl b{color:var(--acc)}
.yp-expl b.bad{color:var(--danger)}

/* 结果屏建议段 */
#rsAdvice{padding:4px 26px 0;font-size:13.5px;line-height:1.75;color:var(--t2)}
#rsAdvice a{color:var(--acc);text-decoration:none}

/* 通知行可点 */
.ntf-row[data-link],.ntf-row[data-id]{cursor:pointer}

/* 阅读进度条基线 */
.progress-thin{height:2px;background:var(--bd2);flex-shrink:0}
.progress-thin i{display:block;height:100%;width:0;background:var(--acc)}

/* onboarding 底部安全区 */
.ob-second{margin-bottom:max(18px,env(safe-area-inset-bottom))}
.rs-links{margin-bottom:max(12px,env(safe-area-inset-bottom))}

/* tag 胶囊防溢出 */
.tag{white-space:nowrap;max-width:100%}
.art-meta{flex-wrap:wrap}
.gl-chips{flex-wrap:wrap}

/* ---- App 主体覆盖（必须在移植样式之后） ---- */
body{background:#0E0D0B;padding:0;max-width:520px;margin:0 auto}
.s-light body, body.light-bg{background:#FBFAF7}
@media (min-width:521px){body{min-height:100dvh}}