:root{
  --paper:#FBFAF7; --surface:#FFFFFF; --ink:#1A1A1A; --ink-2:#5B5852;
  --ink-3:#938E85; --line:#ECE8E1; --line-2:#F3F0EA;
  --accent:#C8442E; --accent-2:#A8351F; --accent-soft:#FBEDE9;
  --good:#1C7A4E; --good-soft:#E7F3EC; --bad:#C0392B; --bad-soft:#F8E8E5;
  --code-bg:#211F1C; --code-tx:#EDEAE4; --code-c:#8A8479;
  --r:12px; --r-lg:16px; --ease:cubic-bezier(.4,0,.2,1);
  --stage:#fbfcfe; --stage-line:#eef0f4;
  --shadow:0 1px 2px rgba(20,18,15,.04),0 10px 30px rgba(20,18,15,.06);
  --shadow-lg:0 2px 6px rgba(20,18,15,.05),0 18px 40px rgba(20,18,15,.08);
  --max:1180px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{background:var(--paper);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.65;padding-bottom:calc(24px + env(safe-area-inset-bottom))}
.wrap{max-width:var(--max);margin:0 auto;padding:0 18px}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.015em;line-height:1.25}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;font-size:inherit}
input,select,textarea{font-family:inherit;font-size:16px;color:inherit}
svg{display:block;flex:none}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Cascadia Code",monospace}

/* 顶栏 */
.top{background:rgba(251,250,247,.92);backdrop-filter:saturate(1.2) blur(8px);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:80}
.top-in{max-width:var(--max);margin:0 auto;padding:11px 18px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:11px;min-width:0}
.logo-ic{width:36px;height:36px;border-radius:9px;background:#C8442E;color:#fff;display:flex;align-items:center;justify-content:center;flex:none}
.logo-tx{font-size:17px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.logo-sub{font-size:11px;color:var(--ink-3);margin-top:-1px;white-space:nowrap}
.top-act{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.tbtn{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border:1px solid var(--line);border-radius:9px;background:var(--surface);font-size:13px;color:var(--ink-2);transition:.15s}
.tbtn:hover{border-color:#d8d2c8;color:var(--ink)}
.tbtn.p{background:var(--accent);border-color:var(--accent);color:#fff}
.tbtn.p:hover{background:var(--accent-2);border-color:var(--accent-2)}
@media(max-width:640px){.logo-sub{display:none}.tbtn{height:34px;padding:0 10px;font-size:12px}}

/* Tab */
.tabs{display:flex;gap:4px;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:4px;margin:16px 0 0;overflow-x:auto}
.tab{flex:1;min-width:92px;height:42px;display:flex;align-items:center;justify-content:center;gap:6px;border-radius:8px;font-size:14px;font-weight:600;color:var(--ink-2);white-space:nowrap;transition:.15s}
.tab.on{background:var(--ink);color:#fff}
.tab span.n{display:inline-block;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--line-2);color:var(--ink-2);font-size:11px;line-height:18px;text-align:center;font-weight:700}
.tab.on span.n{background:rgba(255,255,255,.22);color:#fff}

/* Hero */
.hero{margin-top:18px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:30px 28px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,var(--accent-soft),transparent 70%);pointer-events:none}
.hero h1{font-size:30px;max-width:760px}
.hero h1 .hl{color:var(--accent)}
.hero p{margin:12px 0 0;font-size:15.5px;color:var(--ink-2);max-width:680px}
.hero .hint{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap}
.chip-soft{font-size:12.5px;color:var(--ink-2);background:var(--line-2);border-radius:20px;padding:5px 12px}

/* 速查布局 */
.lib{display:grid;grid-template-columns:212px 1fr;gap:22px;margin-top:18px;align-items:start}
.cnav-wrap{position:sticky;top:74px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:10px}
.cnav-wrap .ct{font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:.04em;padding:4px 8px 8px}
.cnav{display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:9px;font-size:13.5px;color:var(--ink-2);transition:.12s}
.cnav:hover{background:var(--line-2);color:var(--ink)}
.cnav.on{background:var(--accent-soft);color:var(--accent-2);font-weight:600}
.cnav-cnt{margin-left:auto;font-size:11px;color:var(--ink-3);background:var(--line-2);border-radius:8px;padding:1px 7px}
.cnav.on .cnav-cnt{background:rgba(200,68,46,.14);color:var(--accent-2)}

/* 章节 */
.chap{scroll-margin-top:74px;margin-bottom:26px}
.chap-h{font-size:20px;display:flex;align-items:center;gap:10px;padding-bottom:10px;border-bottom:2px solid var(--ink)}
.chap-no{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:7px;background:var(--accent);color:#fff;font-size:13px}
.chap-cnt{font-size:12.5px;font-weight:600;color:var(--ink-3);margin-left:4px}
.chap-formula{margin:14px 0 2px;background:linear-gradient(120deg,var(--accent-soft),#fdf0ec);border:1px solid #f0d9cf;border-radius:14px;padding:14px 16px}
.chap-formula .cf-t{display:flex;align-items:center;gap:7px;font-size:13px;font-weight:800;color:var(--accent-2);margin-bottom:10px}
.chap-formula .cf-t svg{width:15px;height:15px;flex:none}
.chap-formula .chips{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.chap-formula .chip{background:#fff;border:1px solid #f0d9cf;border-radius:999px;padding:6px 13px;font-size:12.5px;font-weight:700;color:var(--accent-2);white-space:nowrap}
.chap-formula .plus{background:none;border:none;color:var(--ink-3);font-size:17px;font-weight:800;padding:0 1px;line-height:1}

/* 卡片网格 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px;margin-top:16px}
@media(max-width:560px){.grid{grid-template-columns:1fr}}

.term{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:box-shadow .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);display:flex;flex-direction:column}
.term:hover{border-color:#e3c9c2;box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.term-hd{padding:16px 16px 12px;display:flex;align-items:flex-start;gap:10px}
.term-hd .nm{flex:1;min-width:0}
.speak{font-size:15.5px;font-weight:800;line-height:1.4;color:var(--ink);letter-spacing:-.01em}
.cn{font-size:13px;color:var(--ink-2);margin-top:4px;font-weight:600}
.en{font-size:11px;color:var(--ink-3);font-family:ui-monospace,Menlo,Consolas,monospace;margin-top:3px;word-break:break-all}
.star{width:32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;color:#d8d2c8;flex:none;transition:.15s var(--ease)}
.star:hover{background:var(--accent-soft);color:var(--accent)}
.star.on{color:var(--accent)}
.term-bd{padding:0 16px}
.box{font-size:13px;line-height:1.55;padding:10px 12px;border-radius:10px;margin-bottom:8px;border:1px solid transparent}
.box .bx-h{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:700;margin-bottom:3px;letter-spacing:.02em}
.bad{background:var(--bad-soft);border-color:#f0d4cf;color:#8f2b20}
.bad .bx-h{color:var(--bad)}
.good{background:var(--good-soft);border-color:#cfe7da;color:#155e3c}
.good .bx-h{color:var(--good)}
.code{padding:0 15px 12px}
.code-h{font-size:12px;color:var(--ink-3);font-weight:600;display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.toggle{height:26px;padding:0 10px;border:1px solid var(--line);border-radius:7px;font-size:11.5px;color:var(--ink-2);background:var(--surface)}
.toggle:hover{border-color:var(--accent);color:var(--accent)}
.code-bd{display:grid;gap:10px}
.cf-note{font-size:12px;color:var(--ink-2);line-height:1.6;margin-top:8px;padding:9px 11px;background:var(--line-2);border-radius:9px}
.cf-note code{background:rgba(0,0,0,.06);padding:1px 5px;border-radius:5px;font-size:11px}
.dv-link{display:inline-block;margin-top:6px;color:var(--accent);font-weight:700;cursor:pointer}
.dv-link:hover{text-decoration:underline}
.cf .cf-h{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:700;margin-bottom:4px}
.cf.bad .cf-h{color:var(--bad)} .cf.good .cf-h{color:var(--good)}
.cf pre{margin:0;background:var(--code-bg);border-radius:9px;padding:11px 12px;overflow-x:auto}
.cf code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;color:var(--code-tx);white-space:pre;line-height:1.6}
.plat{padding:10px 15px;border-top:1px solid var(--line-2);background:#fcfbf9}
.plat-h{font-size:11.5px;font-weight:700;color:var(--ink-3);display:inline-flex;align-items:center;gap:5px;margin-bottom:6px;letter-spacing:.02em}
.plat-row{font-size:12.5px;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start;margin-bottom:4px;line-height:1.5}
.pt{flex:none;font-size:10.5px;font-weight:700;padding:2px 7px;border-radius:6px;color:#fff}
.pt.web{background:#3b6ea5} .pt.app{background:#2e8b72} .pt.mini{background:#c08a2e}
.term-ft{padding:11px 15px;border-top:1px solid var(--line-2);display:flex;gap:8px;flex-wrap:wrap}
.sm{height:34px;padding:0 12px;border-radius:9px;border:1px solid var(--line);font-size:13px;color:var(--ink-2);background:var(--surface);display:inline-flex;align-items:center;gap:6px;transition:.15s var(--ease)}
.sm:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.sm.p{background:var(--accent);border-color:var(--accent);color:#fff}
.sm.p:hover{background:var(--accent-2);border-color:var(--accent-2);color:#fff}

/* 导航演示 m- 组件（前后对照小样） */
.m-phone{width:148px;height:186px;border:1.5px solid #e6e8df;border-radius:12px;overflow:hidden;background:#fff;position:relative;display:flex;flex-direction:column}
.m-bar{height:28px;flex:none;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700}
.m-bar.s{background:#C8442E}
.m-sticky{position:sticky;top:0;z-index:3;box-shadow:0 2px 6px rgba(0,0,0,.18)}
.m-body{flex:1;padding:8px;overflow:hidden}
.m-line{height:7px;background:#eee9e1;border-radius:4px;margin-bottom:6px}
.m-side{width:46px;flex:none;background:#f4f1ea;padding:8px 0;display:flex;flex-direction:column;gap:7px;align-items:center}
.m-side i{width:30px;height:7px;background:#ddd6cb;border-radius:3px}
.m-side i.on{background:var(--accent)}
.m-crumb{font-size:10.5px;color:#938E85;padding:5px 8px;background:#faf8f4;border-bottom:1px solid var(--line-2);white-space:nowrap;overflow:hidden}
.m-crumb b{color:var(--ink)}
.m-dd{position:relative;padding:7px 10px;background:#faf8f4;border:1px solid var(--line-2);border-radius:8px;font-size:11px;width:120px}
.m-sub{position:absolute;top:100%;left:0;margin-top:4px;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 20px rgba(0,0,0,.12);padding:6px;display:flex;flex-direction:column;gap:5px;z-index:4;width:110px}
.m-sub span{font-size:10.5px;padding:4px 6px;background:#f4f1ea;border-radius:5px}
.m-mega{width:140px;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 20px rgba(0,0,0,.12);padding:8px;display:grid;grid-template-columns:1fr 1fr;gap:6px}
.m-mega b{font-size:10px;color:var(--ink-3);grid-column:span 2}
.m-mega span{font-size:10px;background:#f4f1ea;border-radius:5px;padding:4px 5px;text-align:center}
.m-drawer{position:absolute;top:0;left:0;height:100%;width:96px;background:#fff;border-right:1px solid var(--line);box-shadow:4px 0 14px rgba(0,0,0,.12);display:flex;flex-direction:column;gap:8px;padding:10px 9px;z-index:5}
.m-drawer span{font-size:10.5px;background:#f4f1ea;border-radius:6px;padding:6px 5px;text-align:center}
.m-overlay{position:absolute;inset:0;background:rgba(26,26,26,.92);display:flex;flex-direction:column;gap:10px;align-items:center;justify-content:center;z-index:6}
.m-overlay span{color:#fff;font-size:12px;font-weight:600}
.m-anchor{position:absolute;right:6px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:7px;z-index:4}
.m-anchor i{width:7px;height:7px;border-radius:50%;background:#ddd6cb}
.m-anchor i.on{background:var(--accent);width:9px;height:9px}
.m-big{height:64px;background:linear-gradient(135deg,#C8442E,#A8351F);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;font-weight:700;text-align:center}
.m-small{height:30px;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700}
.m-nobar{height:22px;background:#f0ebe2;color:#b3aea3;display:flex;align-items:center;justify-content:center;font-size:10px;margin-bottom:6px}

/* 章节规划路线图 */
.roadmap{margin-top:28px}
.road-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(228px,1fr));gap:12px;margin-top:14px}
.road{background:var(--surface);border:1px dashed var(--line);border-radius:12px;padding:13px 14px}
.road b{display:block;font-size:14px;margin-bottom:5px;color:var(--ink)}
.road span{font-size:12.5px;color:var(--ink-3);line-height:1.65}
.road .soon{display:inline-block;font-size:10.5px;font-weight:700;color:#fff;background:#b3aea3;border-radius:6px;padding:1px 7px;margin-left:6px;vertical-align:middle}
@media(max-width:560px){.road-grid{grid-template-columns:1fr}}

/* 工坊 */
.wk{display:grid;grid-template-columns:1fr;gap:18px;margin-top:18px;align-items:start}
@media(max-width:860px){.wk{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.card-hd{padding:14px 16px;border-bottom:1px solid var(--line-2);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.card-hd h3{font-size:15px}
.card-hd .sub{font-size:12px;color:var(--ink-3)}
.card-bd{padding:15px 16px}
.fld{margin-bottom:15px}
.fld>label{display:block;font-size:12.5px;font-weight:700;color:var(--ink-2);margin-bottom:7px}
.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg button{flex:1;min-width:84px;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--surface);font-size:13.5px;color:var(--ink-2);transition:.12s}
.seg button.on{background:var(--ink);color:#fff;border-color:var(--ink);font-weight:600}
.seg button:hover:not(.on){border-color:#d8d2c8}
.sel{width:100%;height:46px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);font-size:16px;appearance:none;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23938E85' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}
.sel:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{height:36px;padding:0 12px;border-radius:9px;border:1px solid var(--line);background:var(--surface);font-size:13px;color:var(--ink-2);display:inline-flex;align-items:center;gap:6px}
.chip:hover{border-color:#d8d2c8}
.chip.on{background:var(--accent-soft);border-color:#e7b3a8;color:var(--accent-2);font-weight:600}
.swatches{display:flex;flex-wrap:wrap;gap:8px}
.sw{width:40px;height:40px;border-radius:10px;border:2px solid transparent;position:relative;cursor:pointer}
.sw.on{border-color:var(--ink);box-shadow:0 0 0 2px var(--surface) inset}
.out{width:100%;min-height:380px;padding:15px;border:1px solid var(--line);border-radius:12px;background:#fcfbf9;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;line-height:1.75;color:#2b2824;resize:vertical;white-space:pre-wrap}
.out:focus{outline:none;border-color:var(--accent);background:#fff}
.wk-ft{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}

/* 翻译器：大输入框 + 三输出 */
.tr-input-wrap{position:relative}
.tr-input{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:14px 50px 14px 14px;font-size:16px;line-height:1.65;resize:vertical;font-family:inherit;color:var(--ink);background:var(--surface);box-sizing:border-box;display:block}
.tr-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(200,68,46,.12)}
.tr-mic{position:absolute;right:9px;bottom:11px;width:34px;height:34px;border:none;background:var(--line-2);border-radius:50%;color:var(--ink-2);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.15s}
.tr-mic svg{width:18px;height:18px}
.tr-mic:hover{background:var(--accent);color:#fff}
.tr-mic.on{background:var(--accent);color:#fff;animation:micpulse 1.1s infinite}
@keyframes micpulse{0%,100%{transform:scale(1)}50%{transform:scale(1.12)}}
.tr-examples{margin-top:13px;display:flex;flex-wrap:wrap;gap:7px;align-items:center}
.ex-label{font-size:13px;color:var(--ink-3);margin-right:2px}
.tr-examples button{font-size:13px;padding:6px 11px;border:1px solid var(--line);background:var(--surface);border-radius:999px;color:var(--ink-2);cursor:pointer;transition:.12s}
.tr-examples button:hover{border-color:var(--accent);color:var(--accent)}
.tr-actions{margin-top:15px;display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:space-between}
.tr-actions .seg{flex:1;min-width:210px}
.tbtn.big{font-size:15px;padding:11px 24px}
.tbtn.ghost{background:transparent;border:1px dashed var(--line);color:var(--ink-2)}
.tbtn.ghost:hover{border-color:var(--accent);color:var(--accent)}
.out-block{border:1px solid var(--line);border-radius:13px;overflow:hidden;margin-bottom:14px}
.out-block:last-child{margin-bottom:0}
.ob-h{display:flex;align-items:center;gap:9px;padding:10px 14px;background:var(--line-2);font-size:13px;color:var(--ink-2)}
.ob-tag{font-size:11px;font-weight:700;padding:2px 9px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2);flex:none}
.ob-tag.warn{background:#FBF1E6;color:#B5651D;border-color:#F0DCC0}
.ob-tag.good{background:#E9F5EE;color:var(--good);border-color:#C9E8D6}
.plain .ob-tag{background:#EDF1FB;color:#3A5BA0;border-color:#D6E0F2}
.ob-bd{padding:13px 15px;font-size:14px;line-height:1.75;color:var(--ink)}
.ob-bd b{color:var(--accent)}
.tr-adv{border-top:1px dashed var(--line);padding:14px 0 2px;margin-top:13px}
.tr-adv .fld{margin-bottom:12px}
/* 步骤流程指示器（需求翻译器） */
.stepper{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap}
.step{flex:1;min-width:150px;display:flex;align-items:center;gap:11px;background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:12px 14px;box-shadow:var(--shadow)}
.step .n{width:28px;height:28px;flex:none;border-radius:50%;background:var(--accent);color:#fff;font-size:13.5px;font-weight:800;display:flex;align-items:center;justify-content:center}
.step .t{font-size:14px;font-weight:800;color:var(--ink)}
.step .d{font-size:11.5px;color:var(--ink-3);line-height:1.45;margin-top:1px}
/* Agent 语义库 */
.agent-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(238px,1fr));gap:12px;margin-top:14px}
.agent-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:13px 14px;display:flex;flex-direction:column;gap:5px}
.agent-card .en{font-size:15px;font-weight:800;color:var(--ink)}
.agent-card .cn{font-size:13px;color:var(--accent-2);font-weight:700}
.agent-card .cat{display:inline-block;font-size:10.5px;color:var(--ink-3);background:var(--line-2);border-radius:6px;padding:1px 8px;align-self:flex-start;margin-bottom:2px}
.agent-card .pl{font-size:12.5px;color:var(--ink-2);line-height:1.6}
.agent-card a{font-size:12px;color:var(--accent);font-weight:700;margin-top:2px}
/* AI 语义库：契约层定位卡 + 语义名片 */
.ag-feats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.ag-feat{display:flex;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 13px}
.ag-n{width:26px;height:26px;flex:none;border-radius:8px;background:var(--accent);color:#fff;font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center}
.ag-t{font-size:13.5px;font-weight:800;color:var(--ink)}
.ag-d{font-size:12px;color:var(--ink-2);line-height:1.6;margin-top:2px}
.agent-card .aj{display:flex;gap:6px;margin-top:4px}
.agent-json{margin:4px 0 0;font-size:11px;line-height:1.55;background:#23221F;color:#E8E4DC;border-radius:9px;padding:10px;overflow:auto;white-space:pre;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.mcp-panel{margin-top:16px;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:var(--surface)}
.mcp-h{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;font-weight:700;color:var(--ink)}
.mcp-code{margin:8px 0 0;font-size:12px;line-height:1.6;background:#23221F;color:#E8E4DC;border-radius:9px;padding:12px;overflow:auto;white-space:pre;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
@media (max-width:768px){ .ag-feats{grid-template-columns:1fr} }
/* AI 图标库 */
.icon-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:12px;margin-top:4px}
.icon-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 12px;display:flex;flex-direction:column;align-items:center;gap:10px}
.icon-card svg{width:42px;height:42px;color:var(--icon-color,var(--accent))}
.icon-card .nm{font-size:13px;font-weight:700;color:var(--ink);text-align:center}
.icon-card .copy{margin-top:2px}
/* 颜色选择器 */
.color-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:6px 0 14px}
.color-bar .cb-lab{font-size:12px;color:var(--ink-3);margin-right:2px}
.color-dot{width:24px;height:24px;border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 1px var(--line);cursor:pointer;transition:transform .12s}
.color-dot:hover{transform:scale(1.12)}
.color-dot.on{box-shadow:0 0 0 2px var(--ink);transform:scale(1.12)}
.color-dot.custom{position:relative;overflow:hidden;background:conic-gradient(red,orange,yellow,lime,aqua,blue,magenta,red)}
.color-dot.custom input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
/* AI 图标库 · 形变动画 */
.morph-panel{display:flex;gap:18px;align-items:center;padding:18px;background:linear-gradient(135deg,#FBFAF7,#F3EFE8);border:1px solid var(--line);border-radius:14px;margin-bottom:16px}
.morph-preview{width:118px;height:118px;flex:none;color:var(--accent);background:#fff;border-radius:18px;box-shadow:0 10px 26px rgba(200,68,46,.12);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .15s}
.morph-preview:active{transform:scale(.96)}
.morph-preview svg{width:74px;height:74px}
.morph-info{flex:1;min-width:0}
.morph-name{font-size:22px;font-weight:800;color:var(--ink);word-break:break-all}
.morph-sub{font-size:13px;color:var(--ink-2);margin:4px 0 12px}
.morph-acts{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.spring-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.spring-lab{font-size:12px;color:var(--ink-3);margin-right:2px}
.icon-search{margin:4px 0 14px}
.inp{width:100%;box-sizing:border-box;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px;background:#fff;color:var(--ink);outline:none}
.inp:focus{border-color:var(--accent)}
.icon-card{cursor:pointer;transition:transform .12s,border-color .12s}
.icon-card:hover{transform:translateY(-2px)}
.icon-card.sel{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}
/* 为什么这么写（术语白话） */
.why-row{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line-2)}
.why-row:last-child{border-bottom:none}
.why-k{flex:none;width:74px;font-size:12.5px;color:var(--ink-3);font-weight:700;padding-top:1px}
.why-v{flex:1;font-size:14px;color:var(--ink);line-height:1.65}
.why-bad .why-v{color:var(--bad)}
.why-good .why-v{color:var(--good)}

/* 收藏 */
.mlist{margin-top:14px}
.mrow{display:flex;align-items:center;gap:12px;padding:13px 15px;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;background:var(--surface)}
.mrow .ic{width:38px;height:38px;border-radius:10px;background:var(--accent-soft);color:var(--accent-2);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;flex:none}
.mrow .tx{flex:1;min-width:0}
.mrow .t1{font-size:14.5px;font-weight:700}
.mrow .t2{font-size:12.5px;color:var(--ink-2)}
.mrow .acts{display:flex;gap:6px;flex:none}
.empty{padding:40px 16px;text-align:center;color:var(--ink-3);font-size:14px}
.empty svg{margin:0 auto 10px;opacity:.45}

.tip{font-size:12.5px;color:var(--ink-3);margin-top:12px;line-height:1.7}
.hide{display:none!important}
.foot{text-align:center;font-size:12px;color:var(--ink-3);padding:26px 0 8px}
.toast{position:fixed;left:50%;bottom:calc(26px + env(safe-area-inset-bottom));transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:11px 18px;border-radius:11px;font-size:14px;opacity:0;pointer-events:none;transition:.22s;z-index:300;max-width:90vw;text-align:center}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* 前后效果对照（真实渲染） */
.vdemo{margin:0 16px 14px;border:1px solid var(--line);border-radius:14px;background:linear-gradient(180deg,#fffdfb,#fcfbf9);padding:14px}
.vdemo-h{font-size:11.5px;font-weight:800;color:var(--accent);letter-spacing:.01em;margin-bottom:10px;display:flex;align-items:center;gap:6px;padding-bottom:9px;border-bottom:1px solid var(--line-2)}
.vdemo-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:440px){.vdemo-row{grid-template-columns:1fr}}
.vcell{display:flex;flex-direction:column;min-width:0}
.vb-h{font-size:10.5px;font-weight:800;margin-bottom:7px;display:inline-flex;align-items:center;gap:4px;letter-spacing:.02em}
.vb-h.b{color:var(--bad)} .vb-h.g{color:var(--good)}
.vbx{border-radius:12px;padding:14px 10px;background:var(--stage);border:1px solid var(--stage-line);display:flex;align-items:center;justify-content:center;min-height:88px;overflow:visible;text-align:center}

/* 可交互演示（点击 / 滚动体验） */
.vtips{display:inline-flex;align-items:center;gap:3px;margin-top:6px;font-size:10px;font-weight:700;color:#b5532f;background:var(--accent-soft);border:1px solid #f0d9cf;padding:2px 8px;border-radius:20px;align-self:flex-start}
.vtips svg{width:11px;height:11px;flex:none}
.vbx.good{cursor:pointer;transition:box-shadow .2s var(--ease),transform .12s var(--ease),border-color .2s var(--ease)}
.vbx.good:hover{box-shadow:0 0 0 2px var(--accent-soft);border-color:#eccfc7}
.vbx.good:active{transform:scale(.985)}
.vtry{margin-top:8px;align-self:flex-start;display:inline-flex;align-items:center;gap:5px;font-size:12.5px;font-weight:700;color:#fff;background:var(--accent);border:none;border-radius:9px;padding:8px 15px;cursor:pointer;-webkit-tap-highlight-color:transparent;box-shadow:0 2px 6px rgba(200,68,46,.22)}
.vtry:hover{filter:brightness(1.06)}
.vtry:active{transform:scale(.95)}
.vtry svg{width:13px;height:13px;flex:none}
@media(max-width:400px){.vtry{width:100%;justify-content:center}}
/* 在线对比体验：差距说明 */
.vdemo-diff{margin-top:10px;font-size:11.5px;line-height:1.7;color:var(--ink-2);background:var(--accent-soft);border:1px solid #f0d9cf;border-radius:9px;padding:8px 11px}
.vdemo-diff b{color:var(--accent)}
/* 点击试用通用反馈：高亮「平台提示词」正确做法一侧（before/after 对照的体验感，全站统一） */
.vbx.good.try-pulse{animation:tryPulse .55s ease}
@keyframes tryPulse{0%{box-shadow:0 0 0 0 var(--accent)}55%{box-shadow:0 0 0 5px var(--accent-soft)}100%{box-shadow:0 0 0 0 transparent}}
/* ===== 非导航章大幅前后对照（u-* 演示组件） ===== */
.u-wrap{width:100%;display:flex;flex-direction:column;gap:7px;text-align:left}
.u-cap{font-size:10.5px;font-weight:700;color:#a39d92;letter-spacing:.02em;line-height:1.5}
.u-panel{position:relative;border-radius:10px;background:#fbfaf7;border:1px solid #ece5d8;min-height:96px;display:flex;align-items:center;justify-content:center;gap:10px;padding:12px;overflow:hidden}
.u-ovl{position:absolute;inset:0;background:rgba(32,28,24,.45);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .25s}
.u-ovl.on{opacity:1;pointer-events:auto}
.u-modal{background:#fff;border-radius:10px;padding:12px 14px;font-size:12px;font-weight:700;color:#3d3a34;box-shadow:0 10px 30px rgba(30,25,20,.28)}
.u-btn{height:34px;padding:0 15px;border-radius:9px;border:0;font-size:12.5px;font-weight:800;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;font-family:inherit}
.u-btn.g{background:#1C7A4E;color:#fff}
.u-btn.r{background:#C0392B;color:#fff}
.u-btn.gh{background:#fff;border:1px solid #d9d2c4;color:#5a554c}
.u-tag{padding:5px 10px;border-radius:8px;font-size:11.5px;font-weight:700;background:#fff;border:1px solid #e0d9cc;color:#4a463f;white-space:nowrap}
.u-note{font-size:10px;color:#a39d92}
.u-mono{font-family:ui-monospace,Menlo,Consolas,monospace}
.u-kd{width:11px;height:11px;border-radius:4px;display:inline-block;flex:none}
.u-run .u-kd{animation:u-pulse 2.4s infinite}
.u-rm .u-kd{animation:u-pulse 2.4s infinite}
.u-rm.on .u-kd{animation-play-state:paused}
@keyframes u-pulse{0%,18%{transform:scale(1);opacity:1}40%,86%{transform:scale(.55);opacity:.35}100%{transform:scale(1);opacity:1}}
@keyframes u-blink{0%,42%{opacity:1}58%,90%{opacity:.15}100%{opacity:1}}
.u-blink{animation:u-blink 1.5s infinite}
@keyframes u-fill{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.u-fill{transform-origin:left center;border-radius:99px}
@keyframes u-jit{0%{transform:translateX(0)}25%{transform:translateX(36px)}50%{transform:translateX(72px)}75%{transform:translateX(108px)}100%{transform:translateX(0)}}
.u-jit{animation:u-jit 2.2s steps(4,jump-none) infinite}
.u-jit-sm{animation:u-jit 2.2s cubic-bezier(.45,.05,.2,1) infinite}
@keyframes u-scl{0%{transform:scale(1)}50%{transform:scale(1.28)}100%{transform:scale(1)}}
.u-scl-b{animation:u-scl 2s steps(3,jump-none) infinite}
.u-scl-g{animation:u-scl 2s cubic-bezier(.4,0,.2,1) infinite}
@keyframes u-vscroll{0%,12%{transform:translateY(0)}55%,70%{transform:translateY(-44px)}100%{transform:translateY(0)}}
.u-vscroll{animation:u-vscroll 3.2s ease-in-out infinite}
.u-scroll{height:126px;overflow-y:auto;border-radius:10px;border:1px solid #ece5d8;background:#fbfaf7;text-align:left;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.u-scroll::-webkit-scrollbar{display:none}
.u-stk{position:sticky;top:0;z-index:2}
.u-dk{--ubg:#ffffff;--uink:#26292f;--uline:#e6e0d4}
.u-dk.on{--ubg:#181b21;--uink:#edeff3;--uline:#343947}
.u-theme{background:var(--ubg);color:var(--uink);border:1px solid var(--uline);border-radius:10px;padding:11px 12px;font-size:12px;font-weight:700;transition:background .25s,color .25s,border-color .25s}
.u-lz .im{opacity:.22;transition:opacity .45s}
.u-lz.on .im{opacity:1}
.u-hv{transition:transform .22s cubic-bezier(.4,0,.2,1),box-shadow .22s;cursor:pointer}
.u-hv:hover{transform:translateY(-4px);box-shadow:0 10px 22px rgba(60,50,40,.14)}
.u-hv-b{transition:none;cursor:pointer}
.u-tr-b{width:88px;height:40px;border-radius:9px;background:#E7C9C4;cursor:pointer;flex:none}
.u-tr-b:hover{transform:translateX(48px)}
.u-tr-g{width:88px;height:40px;border-radius:9px;background:#BFE0CE;cursor:pointer;flex:none;transition:transform .35s cubic-bezier(.4,0,.2,1)}
.u-tr-g:hover{transform:translateX(48px)}
.u-tf-b{width:88px;height:40px;border-radius:9px;background:#E7C9C4;cursor:pointer;flex:none;position:relative;left:0;transition:left .35s linear}
.u-tf-b:hover{left:48px}
.u-tf-g{width:88px;height:40px;border-radius:9px;background:#BFE0CE;cursor:pointer;flex:none;transition:transform .35s cubic-bezier(.4,0,.2,1)}
.u-tf-g:hover{transform:translateX(48px)}
.u-ez-b{width:88px;height:40px;border-radius:9px;background:#E7C9C4;cursor:pointer;flex:none;transition:transform .6s linear}
.u-ez-b:hover{transform:translateX(56px)}
.u-ez-g{width:88px;height:40px;border-radius:9px;background:#BFE0CE;cursor:pointer;flex:none;transition:transform .6s cubic-bezier(.34,1.4,.64,1)}
.u-ez-g:hover{transform:translateX(56px)}
.u-ac-b{height:36px;padding:0 16px;border-radius:9px;border:0;background:#1C7A4E;color:#fff;font-size:12.5px;font-weight:800;cursor:pointer;font-family:inherit}
.u-ac-g{height:36px;padding:0 16px;border-radius:9px;border:0;background:#1C7A4E;color:#fff;font-size:12.5px;font-weight:800;cursor:pointer;font-family:inherit;transition:transform .12s,background .12s}
.u-ac-g:active{transform:scale(.93);background:#155e3c}
.u-fi{width:160px;height:36px;border-radius:9px;padding:0 10px;font-size:13px;border:1.5px solid #d9d2c4;background:#fff;font-family:inherit}
.u-fi-b:focus{outline:none}
.u-fi-g:focus{outline:none;border-color:#1C7A4E;box-shadow:0 0 0 3px rgba(28,122,78,.16)}
.m-phone.m-scroll{overflow-y:auto;-webkit-overflow-scrolling:touch;height:176px}
.m-sticky{position:sticky;top:0;z-index:3}
.m-bar.m-sticky{background:var(--accent)}
.m-row{display:flex;flex:1;min-height:0}
.m-side.v-side.on{width:0!important;padding:0!important;opacity:0;overflow:hidden}
.m-act{cursor:pointer;-webkit-tap-highlight-color:transparent}
.m-act:hover{filter:brightness(1.07)}
.m-act:active{transform:scale(.96)}
.m-sub.v-sub,.m-mega.v-mega{display:none}
.m-sub.v-sub.on{display:flex}
.m-mega.v-mega.on{display:grid}
.m-drawer.v-drawer{transform:translateX(-102%);transition:transform .26s ease}
.m-drawer.v-drawer.on{transform:translateX(0)}
.m-overlay.v-ov,.m-overlay.v-ov2{opacity:0;pointer-events:none;transition:opacity .2s}
.m-overlay.v-ov.on,.m-overlay.v-ov2.on{opacity:1;pointer-events:auto}
.m-big{height:42px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;background:var(--ink);color:#fff;transition:height .22s,font-size .22s}
.m-big.shrunk{height:20px;font-size:8px}
.m-small{height:20px;display:flex;align-items:center;justify-content:center;font-size:8px;font-weight:700;background:var(--ink);color:#fff}
.m-dead.shake{animation:dshake .45s}
@keyframes dshake{0%,100%{transform:translateX(0)}20%{transform:translateX(-4px)}40%{transform:translateX(4px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}}
.m-crumb span,.m-crumb b{cursor:pointer}
.m-crumb .on{color:var(--accent)!important}
.m-anchor i{cursor:pointer}

/* ===== 导航章新版流畅演示（nv-*，移植自 Nav Pattern Lab；动效只走 transform/opacity） ===== */
.nv-stage{width:100%;max-width:320px;height:224px;overflow-y:auto;border:1px solid var(--line-2);border-radius:12px;background:#faf8f4;position:relative;text-align:left;-webkit-overflow-scrolling:touch;scroll-behavior:smooth}
.nv-blk{height:34px;background:#eee9df;border-radius:8px;margin:0 12px 10px}
.nv-tip{font-size:11px;color:var(--ink-3);margin:10px 12px}
.nv-page{padding:12px 0 4px}
/* 悬浮吸顶 */
.nv-fnav{position:sticky;top:8px;margin:8px 10px 0;z-index:3;display:flex;align-items:center;justify-content:space-between;background:#fff;border-radius:12px;box-shadow:0 4px 14px rgba(0,0,0,.13);padding:9px 12px;font-size:11.5px;font-weight:700;color:var(--ink)}
.nv-logo{color:var(--accent)}
.nv-links{display:flex;gap:10px;font-weight:600;color:var(--ink-2)}
/* 可折叠侧边栏 */
.nv-sidewrap{display:flex;width:100%;max-width:320px;height:224px;border:1px solid var(--line-2);border-radius:12px;overflow:hidden;background:#fff;text-align:left}
.nv-side{width:128px;flex:none;background:#23262d;color:#e9e7e1;padding:10px 9px;display:flex;flex-direction:column;gap:7px;overflow:hidden;transition:width .3s cubic-bezier(.4,0,.2,1)}
.nv-side.on{width:46px}
.nv-stg{flex:none;width:28px;height:28px;border:0;border-radius:8px;background:rgba(255,255,255,.14);color:#fff;font-size:14px;cursor:pointer;margin-bottom:3px;line-height:1}
.nv-si{display:flex;align-items:center;gap:8px;font-size:11.5px;white-space:nowrap;padding:5px 6px;border-radius:7px}
.nv-si.on,.nv-si:hover{background:rgba(255,255,255,.12)}
.nv-si svg{width:14px;height:14px;flex:none}
.nv-si span{opacity:1;transition:opacity .2s}
.nv-side.on .nv-si span{opacity:0}
.nv-smain{flex:1;padding:12px;min-width:0}
/* 面包屑 */
.nv-crumbox{width:100%;max-width:320px;border:1px solid var(--line-2);border-radius:12px;background:#fff;padding:14px 12px;text-align:left}
.nv-crumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:12px;color:#938e85;background:#faf8f4;border:1px solid var(--line-2);border-radius:9px;padding:9px 12px}
.nv-crumb i{font-style:normal;color:#c9c3b8}
.nv-crumb a{cursor:pointer;color:var(--ink-2);position:relative;transition:color .15s}
.nv-crumb a::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1.5px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s}
.nv-crumb a:hover{color:var(--accent)}
.nv-crumb a:hover::after{transform:scaleX(1)}
.nv-crumb b{color:var(--ink)}
.nv-crumb .on{color:var(--accent);font-weight:700}
/* 顶栏 + hover 下拉 / 巨型菜单 */
.nv-barstage{width:100%;max-width:320px;border:1px solid var(--line-2);border-radius:12px;background:#fff;text-align:left}
.nv-topbar{display:flex;align-items:center;gap:12px;background:var(--ink);color:#fff;padding:11px 12px;border-radius:12px 12px 0 0;font-size:11.5px}
.nv-brand{font-weight:800;color:#fff}
.nv-mt{font-weight:600;cursor:default;white-space:nowrap}
.nv-mi{position:relative;cursor:pointer;display:inline-flex;align-items:center;gap:3px}
.nv-mi .arrow{width:10px;height:10px;transition:transform .25s cubic-bezier(.4,0,.2,1)}
.nv-mi:hover .arrow,.nv-mi.on .arrow{transform:rotate(180deg)}
.nv-submenu{position:absolute;top:calc(100% + 8px);left:-8px;min-width:112px;background:#fff;color:var(--ink-2);border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 24px rgba(0,0,0,.14);padding:6px;display:flex;flex-direction:column;gap:2px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.22s cubic-bezier(.4,0,.2,1);z-index:5}
.nv-mi:hover .nv-submenu,.nv-mi.on .nv-submenu{opacity:1;visibility:visible;transform:none}
.nv-submenu a{font-size:11px;padding:6px 8px;border-radius:6px;color:var(--ink-2);text-decoration:none;white-space:nowrap}
.nv-submenu a:hover{background:var(--accent-soft);color:var(--accent)}
.nv-megap{position:absolute;top:calc(100% + 8px);left:-8px;width:252px;background:#fff;color:var(--ink-2);border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 28px rgba(0,0,0,.15);padding:10px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.22s cubic-bezier(.4,0,.2,1);z-index:5}
.nv-mi:hover .nv-megap,.nv-mi.on .nv-megap{opacity:1;visibility:visible;transform:none}
.nv-mc h5{margin:0 0 4px;font-size:10.5px;color:var(--ink)}
.nv-mc a{display:block;font-size:10.5px;padding:3px 0;color:var(--ink-2);text-decoration:none}
.nv-mc a:hover{color:var(--accent)}
/* 汉堡抽屉 */
.nv-phone{position:relative;width:100%;max-width:210px;height:224px;border:1px solid var(--line-2);border-radius:12px;background:#fff;overflow:hidden;text-align:left}
.nv-pbar{height:38px;flex:none;background:var(--ink);color:#fff;display:flex;align-items:center;gap:9px;padding:0 10px;font-size:12px}
.nv-ham{width:30px;height:30px;border:0;background:transparent;color:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0}
.nv-ham svg{width:16px;height:16px}
.nv-pbody{padding:12px}
.nv-backdrop{position:absolute;inset:0;background:rgba(20,20,20,.45);opacity:0;pointer-events:none;transition:opacity .25s;z-index:4}
.nv-backdrop.on{opacity:1;pointer-events:auto}
.nv-drawer{position:absolute;top:0;left:0;bottom:0;width:120px;background:#fff;z-index:5;display:flex;flex-direction:column;gap:4px;padding:12px 10px;transform:translateX(-105%);transition:transform .3s cubic-bezier(.4,0,.2,1);box-shadow:6px 0 18px rgba(0,0,0,.14)}
.nv-drawer.on{transform:none}
.nv-drawer a{font-size:12px;font-weight:600;color:var(--ink);padding:8px;border-radius:8px;text-decoration:none}
.nv-drawer a:hover{background:var(--accent-soft);color:var(--accent)}
.nv-dx{position:absolute;top:6px;right:10px;font-size:15px;color:var(--ink-3);cursor:pointer;line-height:1}
/* 全屏遮罩 */
.nv-ovstage{position:relative;width:100%;max-width:320px;height:224px;border:1px solid var(--line-2);border-radius:12px;background:#faf8f4;display:flex;align-items:center;justify-content:center;overflow:hidden;text-align:center}
.nv-openbtn{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 16px;border:1px solid var(--accent);color:var(--accent);background:#fff;border-radius:10px;font-weight:700;font-size:12.5px;cursor:pointer}
.nv-openbtn svg{width:14px;height:14px}
.nv-ovl{position:absolute;inset:0;background:rgba(24,24,24,.94);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .28s;z-index:6}
.nv-ovl.on{opacity:1;pointer-events:auto}
.nv-ovx{position:absolute;top:10px;right:14px;font-size:20px;color:#fff;cursor:pointer;line-height:1}
.nv-ovnav{display:flex;flex-direction:column;gap:14px;text-align:center}
.nv-ovnav a{color:#fff;font-size:17px;font-weight:700;text-decoration:none;opacity:0;transform:translateY(12px);transition:.4s cubic-bezier(.4,0,.2,1)}
.nv-ovl.on .nv-ovnav a{opacity:1;transform:none}
.nv-ovl.on .nv-ovnav a:nth-child(1){transition-delay:.05s}
.nv-ovl.on .nv-ovnav a:nth-child(2){transition-delay:.12s}
.nv-ovl.on .nv-ovnav a:nth-child(3){transition-delay:.19s}
.nv-ovl.on .nv-ovnav a:nth-child(4){transition-delay:.26s}
/* 锚点 scrollspy */
.nv-dots{position:absolute;right:8px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:8px;z-index:4}
.nv-dots button{width:9px;height:9px;border-radius:50%;border:0;background:#d8d2c6;cursor:pointer;padding:0;transition:background .2s,transform .2s}
.nv-dots button.on{background:var(--accent);transform:scale(1.25)}
.nv-spyin{padding:12px 24px 12px 12px}
.nv-spyin section{padding:8px 0 14px}
.nv-spyin h5{margin:0 0 8px;font-size:12px;color:var(--ink)}
/* 滚动收缩 */
.nv-hero{height:96px;flex:none;background:linear-gradient(135deg,#C8442E,#A8351F);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:13px;font-weight:800;gap:2px;text-align:center}
.nv-hero small{font-size:10px;font-weight:600;opacity:.85}
.nv-snav{position:sticky;top:0;z-index:3;height:46px;flex:none;display:flex;align-items:center;justify-content:space-between;padding:0 12px;font-size:11.5px;font-weight:700;color:var(--ink);background:rgba(250,248,244,0);transition:height .25s cubic-bezier(.4,0,.2,1),background .25s,box-shadow .25s}
.nv-snav.shrunk{height:32px;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.1)}
.nv-slogo{color:var(--accent)}
.nv-sl{display:flex;gap:10px;font-weight:600;color:var(--ink-2)}
/* 悬停动效 demo：放上鼠标 / 点击都浮起 */
.hl-card{transition:transform .18s ease, box-shadow .18s ease;cursor:pointer;border:1px solid var(--line);border-radius:10px;padding:10px;background:#fff}
.hl-card:hover,.hl-card.on{transform:translateY(-6px);box-shadow:0 10px 22px rgba(60,50,40,.14)}
/* 轮播图 demo：可横向滑动 + 左右按钮切换 */
.cr{width:100%}
.cr-track{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;border-radius:8px}
.cr-track::-webkit-scrollbar{height:0}
.cr-slide{flex:0 0 100%;height:96px;scroll-snap-align:center;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:15px}
.cr-nav{display:flex;gap:8px;justify-content:center;margin-top:8px}
.cr-nav button{width:34px;height:30px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer;font-size:15px;color:var(--ink-2);transition:.15s}
.cr-nav button:hover{filter:brightness(1.05)}
.cr-nav button:active{transform:scale(.94)}

/* === 交互组件 demo：表单 / 按钮 / 弹窗 / 动效 === */
.demo-stage{display:flex;flex-direction:column;gap:10px;align-items:stretch;width:100%}
.demo-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:center}
/* 表单 */
.f-field{display:flex;flex-direction:column;gap:5px;text-align:left;width:100%}
.f-field>label{font-size:11px;font-weight:700;color:var(--ink-2)}
.f-input{width:100%;height:38px;border:1px solid var(--line);border-radius:8px;padding:0 11px;font-size:14px;background:#fff;transition:.15s}
.f-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.f-sel{position:relative;width:100%;text-align:left}
.f-sel .f-sel-btn{height:38px;border:1px solid var(--line);border-radius:8px;padding:0 11px;display:flex;align-items:center;justify-content:space-between;font-size:14px;background:#fff;cursor:pointer;transition:.15s;color:var(--ink-2)}
.f-sel.on .f-sel-btn{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);color:var(--ink)}
.f-sel .f-sel-btn .ar{transition:.2s;color:var(--ink-3)}
.f-sel.on .f-sel-btn .ar{transform:rotate(180deg)}
.f-opt{position:absolute;top:calc(100% + 4px);left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 10px 26px rgba(0,0,0,.14);padding:5px;display:none;z-index:5;flex-direction:column;gap:2px}
.f-sel.on .f-opt{display:flex}
.f-opt span{padding:7px 9px;border-radius:6px;font-size:13px;cursor:pointer;color:var(--ink-2)}
.f-opt span:hover{background:var(--line-2)} .f-opt span.on{background:var(--accent-soft);color:var(--accent-2);font-weight:600}
.f-sw{width:48px;height:28px;border-radius:15px;background:var(--line);position:relative;cursor:pointer;transition:.2s;flex:none}
.f-sw::after{content:'';position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.25);transition:.2s}
.f-sw.on{background:var(--good)}
.f-sw.on::after{left:23px}
.f-ck{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-2);cursor:pointer}
.f-ck i{width:20px;height:20px;border:1.5px solid var(--line);border-radius:6px;display:flex;align-items:center;justify-content:center;flex:none;color:transparent;transition:.15s;font-size:13px;font-weight:700}
.f-ck.on i{background:var(--accent);border-color:var(--accent);color:#fff}
.f-rd{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-2);cursor:pointer}
.f-rd i{width:19px;height:19px;border:1.5px solid var(--line);border-radius:50%;display:flex;align-items:center;justify-content:center;flex:none}
.f-rd.on i{border-color:var(--accent)} .f-rd.on i::after{content:'';width:10px;height:10px;border-radius:50%;background:var(--accent)}
/* 按钮 */
.b-row{display:flex;gap:9px;align-items:center;flex-wrap:wrap;justify-content:center}
.b-pri{height:38px;padding:0 18px;border-radius:9px;background:var(--accent);color:#fff;font-weight:600;font-size:14px;transition:.12s}
.b-pri.pressed{transform:scale(.95)}
.b-sec{height:38px;padding:0 18px;border-radius:9px;border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:14px;transition:.12s}
.b-load{height:38px;padding:0 18px;border-radius:9px;background:var(--accent);color:#fff;font-weight:600;font-size:14px;min-width:110px;display:inline-flex;align-items:center;justify-content:center;gap:7px}
.b-load .sp{width:14px;height:14px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;display:none}
.b-load.loading{pointer-events:none;opacity:.85}
.b-load.loading .sp{display:block;animation:dspin .7s linear infinite}
.b-dis{height:38px;padding:0 18px;border-radius:9px;background:var(--accent);color:#fff;font-weight:600;font-size:14px;opacity:.45;cursor:not-allowed}
.b-dis.shake{animation:dshake .45s}
.b-grp{display:inline-flex;border:1px solid var(--line);border-radius:9px;overflow:hidden}
.b-grp span{height:36px;padding:0 15px;display:inline-flex;align-items:center;font-size:13px;color:var(--ink-2);cursor:pointer;transition:.12s}
.b-grp span+span{border-left:1px solid var(--line)}
.b-grp span.on{background:var(--ink);color:#fff}
.b-ic{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:.12s}
.b-ic.on{background:var(--accent);border-color:var(--accent);color:#fff}
/* 弹窗 */
.mo{position:relative;width:100%;height:140px;border:1px solid var(--line-2);border-radius:10px;background:#f6f4ef;overflow:hidden;display:flex;align-items:center;justify-content:center}
.mo .mo-mask{position:absolute;inset:0;background:rgba(20,18,15,.45);opacity:0;pointer-events:none;transition:.2s;display:flex;align-items:center;justify-content:center}
.mo.on .mo-mask{opacity:1;pointer-events:auto}
.mo .mo-card{width:78%;background:#fff;border-radius:12px;padding:15px;box-shadow:0 14px 40px rgba(0,0,0,.25);transform:scale(.9);transition:.2s}
.mo.on .mo-card{transform:scale(1)}
.mo .mo-card h4{font-size:15px;margin:0 0 6px;color:var(--ink)} .mo .mo-card p{font-size:12.5px;color:var(--ink-2);margin:0 0 12px}
.mo .mo-foot{display:flex;gap:8px;justify-content:flex-end}
.mo .xbtn{height:30px;padding:0 14px;border-radius:8px;border:1px solid var(--line);background:#fff;font-size:12.5px;color:var(--ink-2)}
.mo .xbtn.p{background:var(--accent);border-color:var(--accent);color:#fff}
.dr{position:relative;width:100%;height:140px;border:1px solid var(--line-2);border-radius:10px;background:#f6f4ef;overflow:hidden}
.dr .dr-mask{position:absolute;inset:0;background:rgba(20,18,15,.4);opacity:0;pointer-events:none;transition:.2s}
.dr.on .dr-mask{opacity:1;pointer-events:auto}
.dr .dr-panel{position:absolute;top:0;right:0;height:100%;width:62%;background:#fff;box-shadow:-8px 0 24px rgba(0,0,0,.18);transform:translateX(100%);transition:.25s;padding:14px;display:flex;flex-direction:column;gap:9px;box-sizing:border-box}
.dr.on .dr-panel{transform:translateX(0)}
.dr .dr-panel .dh{font-weight:700;font-size:14px;color:var(--ink)} .dr .dr-item{font-size:13px;color:var(--ink-2);padding:8px 6px;border-radius:8px} .dr .dr-item:hover{background:var(--line-2)}
.pc{position:relative;display:inline-flex}
.pc .pc-box{position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%) scale(.95);background:var(--ink);color:#fff;border-radius:10px;padding:10px 12px;font-size:12.5px;width:158px;opacity:0;pointer-events:none;transition:.16s;z-index:6}
.pc.on .pc-box{opacity:1;transform:translateX(-50%) scale(1);pointer-events:auto}
.pc .pc-box .pc-bt{display:flex;gap:6px;margin-top:9px;justify-content:flex-end}
.pc .pc-bt .pb{height:26px;padding:0 11px;border-radius:7px;font-size:12px;border:none}
.pc .pc-bt .pb.c{background:var(--bad);color:#fff} .pc .pc-bt .pb.x{background:#fff;color:var(--ink-2)}
/* 骨架屏 */
.sk{width:100%;max-width:220px;display:flex;flex-direction:column;gap:9px}
.sk .sk-line{height:11px;border-radius:5px;background:linear-gradient(90deg,#e9e6e0 25%,#f6f4ef 37%,#e9e6e0 63%);background-size:400% 100%;animation:dskel 1.3s ease infinite}
.sk .sk-line.w1{width:68%} .sk .sk-line.w2{width:92%} .sk .sk-line.w3{width:52%} .sk .sk-line.w4{width:80%}
.sk .sk-real{display:none;flex-direction:column;gap:5px;text-align:left;font-size:12.5px;color:var(--ink-2)}
.sk.on .sk-line{display:none} .sk.on .sk-real{display:flex}
.sk .sk-real b{color:var(--ink)}
@keyframes dskel{0%{background-position:100% 0}100%{background-position:-100% 0}}
/* 动效 */
.an-wrap{width:100%;display:flex;flex-direction:column;gap:10px;align-items:center}
.an-fade{width:120px;height:40px;border-radius:9px;background:var(--accent-soft);color:var(--accent-2);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;opacity:0;transition:opacity .35s,transform .35s;transform:translateY(6px)}
.an-fade.on{opacity:1;transform:translateY(0)}
.an-flip{width:120px;height:64px;perspective:600px}
.an-flip .inner{position:relative;width:100%;height:100%;transition:transform .5s;transform-style:preserve-3d;cursor:pointer}
.an-flip.flipped .inner{transform:rotateY(180deg)}
.an-flip .face{position:absolute;inset:0;border-radius:10px;backface-visibility:hidden;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600}
.an-flip .face.f{background:var(--accent-soft);color:var(--accent-2)} .an-flip .face.b{background:var(--ink);color:#fff;transform:rotateY(180deg)}
.an-li{display:flex;flex-direction:column;gap:6px;width:100%;max-width:200px}
.an-li .li{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:13px;color:var(--ink-2);opacity:0;transform:translateX(-8px);transition:.3s}
.an-li.on .li{opacity:1;transform:translateX(0)}
.an-li.on .li:nth-child(2){transition-delay:.12s} .an-li.on .li:nth-child(3){transition-delay:.24s} .an-li.on .li:nth-child(4){transition-delay:.36s}
.an-bar{width:100%;max-width:200px;height:8px;border-radius:5px;background:var(--line-2);overflow:hidden}
.an-bar .fill{height:100%;width:0;background:var(--accent);border-radius:5px;transition:width 1.4s ease}
.an-bar.run .fill{width:100%}
.an-bar.half .fill{width:62%}
.an-tab{display:flex;flex-direction:column;gap:9px;width:100%;max-width:200px}
.an-tab .tabs2{display:flex;gap:4px}
.an-tab .tabs2 button{flex:1;height:32px;border-radius:8px;border:1px solid var(--line);background:#fff;font-size:12.5px;color:var(--ink-2);cursor:pointer;transition:.12s}
.an-tab .tabs2 button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.an-tab .panels{position:relative}
.an-tab .panels .p{display:none;font-size:12.5px;color:var(--ink-2);padding:10px;border:1px solid var(--line-2);border-radius:8px;background:#fff}
.an-tab .panels .p.on{display:block;animation:dfade .3s}
@keyframes dfade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}
@keyframes dspin{to{transform:rotate(360deg)}}

/* 移动端 */
@media(max-width:900px){
  .lib{grid-template-columns:1fr}
  .cnav-wrap{position:static;display:flex;gap:6px;overflow-x:auto;padding:8px}
  .cnav-wrap .ct{display:none}
  .cnav{flex:none;white-space:nowrap;border:1px solid var(--line);background:var(--surface)}
  .cnav-cnt{margin-left:6px}
}
@media(max-width:640px){
  .hero{padding:22px 18px} .hero h1{font-size:24px}
  .wrap{padding:0 14px} .top-in{padding:10px 14px}
}

.site-hd{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-hd .wrap{display:flex;align-items:center;justify-content:space-between;padding:12px 16px}
.brand{font-weight:800;color:var(--ink);text-decoration:none;font-size:16px}
.brand::before{content:"";display:inline-block;width:10px;height:10px;border-radius:3px;background:var(--accent);margin-right:8px;vertical-align:middle}
.topnav a{color:var(--ink-2);text-decoration:none;font-size:13px;font-weight:600}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}
main.wrap{padding-top:22px;padding-bottom:48px}
.site-ft{border-top:1px solid var(--line);color:var(--ink-3);font-size:12.5px;padding:18px 16px;text-align:center;margin-top:24px}
.hero{background:linear-gradient(135deg,var(--accent-soft),var(--surface));border:1px solid var(--line);border-radius:var(--r);padding:26px 22px;margin-bottom:22px}
.hero h1{margin:0 0 8px;font-size:24px;color:var(--ink)}
.hero p{margin:0;color:var(--ink-2);font-size:14px;line-height:1.7;max-width:680px}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.cat{display:block;text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px;transition:.15s}
.cat:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow)}
.cat-h{font-weight:800;color:var(--ink);font-size:15px;display:flex;align-items:center;gap:8px}
.cat .cnt{font-size:11px;background:var(--accent-soft);color:var(--accent);border-radius:20px;padding:1px 8px;font-weight:700}
.cat-sub{margin-top:6px;color:var(--ink-3);font-size:12.5px}
.crumb{font-size:13px;color:var(--ink-3);margin-bottom:10px}
.crumb a{color:var(--accent);text-decoration:none}
.termlist{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:8px}
.termlist li{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px}
.termlist a{text-decoration:none;color:var(--ink);font-weight:700;font-size:15px}
.termlist .en{color:var(--ink-3);font-weight:500;font-size:12.5px;margin-left:8px}
.termlist .one{color:var(--ink-2);font-size:13px;margin-top:4px}
.pager{display:flex;justify-content:space-between;margin-top:22px;gap:10px}
.pager a{flex:1;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:10px 14px;font-size:13.5px;font-weight:600}
.pager a.next{text-align:right}
.pager a:hover{border-color:var(--accent)}
.cnt{color:var(--ink-3);font-weight:600;font-size:14px;margin-left:6px}
h1{color:var(--ink)}
/* 顶部导航：logo 后紧跟导航，留足间距，不挤右上角 */
.site-hd .wrap{display:flex;align-items:center;justify-content:flex-start;gap:26px;padding:12px 16px;flex-wrap:wrap}
.brand{font-weight:800;color:var(--ink);text-decoration:none;font-size:17px;letter-spacing:.2px}
.topnav{display:flex;align-items:center;gap:6px}
.topnav a{color:var(--ink-2);text-decoration:none;font-size:14px;font-weight:600;padding:7px 12px;border-radius:9px;transition:.15s}
.topnav a:hover{color:var(--accent);background:var(--accent-soft)}
/* 详情页：代码展开按钮放大 + 上色 */
.code-h{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.code-h .toggle{height:36px;min-width:84px;padding:0 16px;border:1px solid var(--accent);color:var(--accent);background:#fff;font-weight:700;font-size:13.5px;border-radius:9px;cursor:pointer;transition:.15s}
.code-h .toggle:hover{background:var(--accent-soft)}
/* 详情页：提示词区块（三端都展示） */
.prompt{margin-top:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px}
.prompt-h{font-size:14px;font-weight:800;color:var(--ink);margin-bottom:12px;display:flex;align-items:center;gap:6px}
.prompt-item{border:1px solid var(--line-2);border-radius:11px;padding:12px;margin-bottom:10px;background:#fcfbf9}
.prompt-item:last-child{margin-bottom:0}
.prompt-item-h{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.prompt-item-h .pt{font-size:12px;font-weight:800;padding:3px 10px;border-radius:999px;color:#fff}
.prompt-item-h .pt.web{background:#3B6EA5}
.prompt-item-h .pt.app{background:#2E8B72}
.prompt-item-h .pt.mini{background:#C08A2E}
.copy-prompt{height:36px;font-size:13.5px;font-weight:700}
.prompt-bd{margin:0;max-height:360px;overflow:auto;background:#1f1d1a;color:#f3efe7;border-radius:9px;padding:12px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.7;white-space:pre-wrap;word-break:break-word}