/* ─────────────────────────────────────────────────────────────────
   APERTURE PREVIEW — SHARED DESIGN SYSTEM
   Extracted from PM-approved v8-d (Prism Glass Refraction).
   Used by every /preview/* page so styling stays consistent.
   ───────────────────────────────────────────────────────────────── */

:root{
  --void:#050506;
  --paper:#F6F4EF;
  --paper-2:#EDEAE2;
  --ink:#0E0D0C;
  --ink-2:#3C3A34;
  --mute:#8A857A;
  --accent:#C2502A;
  --accent-2:#E0843C;
  --line:rgba(14,13,12,.10);
  --line-2:rgba(14,13,12,.055);
  --wht:rgba(246,244,239,.92);
  --f:"Bricolage Grotesque",system-ui,sans-serif;
  --serif:"Bricolage Grotesque",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--paper);color:var(--ink);
  font-family:var(--f);
  -webkit-font-smoothing:antialiased;
  line-height:1.5;letter-spacing:-.01em;
  overflow-x:hidden;
}
::selection{background:var(--accent);color:var(--paper)}
a{color:inherit;text-decoration:none}
.wrap{position:relative;z-index:3;max-width:1140px;margin:0 auto;padding:0 28px}

/* ─── NAV ─── */
.ap-nav{position:fixed;top:0;left:0;right:0;z-index:50;backdrop-filter:blur(16px);transition:background .4s,border-color .4s;border-bottom:1px solid transparent;font-family:var(--f)}
.ap-nav.lit{background:rgba(246,244,239,.78);border-bottom:1px solid var(--line-2)}
.nav-in{max-width:1260px;margin:0 auto;padding:16px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:6px;font-size:18px;font-weight:700;letter-spacing:-.02em;color:var(--wht);transition:color .4s}
.brand .brand-text{display:inline-block;transform:translateY(2px)}
.ap-nav.lit .brand{color:var(--ink)}
/* Aperture official mark (0→1 negative-space mechanism, 林董-approved).
   Source: aperture-mark-white.png (dark bg) / aperture-mark-ink.png (light bg).
   We render via background-image so a single CSS swap propagates to every
   preview page that uses .brand .logo-mark. */
.brand .logo-mark{
  width:22px;height:26px;
  display:inline-block;
  flex-shrink:0;
  background:url("/preview/_assets/img/aperture-mark-white.png") center/contain no-repeat;
}
/* Light-bg navs (lit class) + footer brand on cream — use ink mark */
.ap-nav.lit .brand .logo-mark,
footer .brand .logo-mark{
  background-image:url("/preview/_assets/img/aperture-mark-ink.png");
}
/* legacy ::after dot (from old "ring + dot" placeholder) — neutralized */
.brand .logo-mark::after{
  content:none;
  border-radius:50%;background:currentColor;opacity:.6;
}
.nav-links{display:flex;align-items:center;gap:4px;font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase}
.nav-item{position:relative;padding:8px 14px;color:rgba(246,244,239,.72);transition:color .25s;cursor:default}
.ap-nav.lit .nav-item{color:var(--ink-2)}
.nav-item:hover{color:var(--accent-2)}
.nav-item.has-menu::after{content:"";display:inline-block;width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);margin-left:8px;opacity:.5}

/* Dropdown */
.nav-menu{position:absolute;top:100%;left:0;min-width:240px;background:rgba(246,244,239,.96);backdrop-filter:blur(20px);border:1px solid var(--line);border-radius:14px;padding:8px;box-shadow:0 20px 60px -20px rgba(14,13,12,.25);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .2s, transform .2s, visibility 0s .2s;font-family:var(--f);text-transform:none;letter-spacing:-.005em}
.nav-item:hover .nav-menu, .nav-item:focus-within .nav-menu{opacity:1;visibility:visible;transform:translateY(0);transition:opacity .2s, transform .2s, visibility 0s 0s}
.nav-menu a{display:block;padding:11px 14px;border-radius:8px;font-size:13.5px;font-weight:500;color:var(--ink);transition:background .15s, color .15s}
.nav-menu a:hover{background:var(--paper-2);color:var(--accent)}
.nav-menu a .sub{display:block;font-size:11.5px;color:var(--mute);font-weight:400;margin-top:2px;font-family:var(--mono);letter-spacing:.02em}

.nav-right{display:flex;align-items:center;gap:16px}
.signin{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--wht);transition:color .4s}
.ap-nav.lit .signin{color:var(--ink)}
.signin:hover{color:var(--accent-2)}
.pill{font-family:var(--mono);font-size:11.5px;letter-spacing:.10em;text-transform:uppercase;font-weight:600;background:var(--paper);color:var(--ink);padding:11px 22px;border-radius:100px;transition:transform .25s,background .25s}
.ap-nav.lit .pill{background:var(--ink);color:var(--paper)}
.pill:hover{transform:translateY(-1px)}
.pill-dark{background:var(--ink);color:var(--paper)}
.pill-accent{background:var(--accent-2);color:#1a1206}
/* removed: @media(max-width:960px) nav-links display:none — replaced by mobile hamburger 2026-06-04 */

/* ─── HERO ─── */
.hero{position:relative;min-height:660px;height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;background:var(--void)}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transform:translateZ(0)}
.hero-media-mobile{display:block}
.hero-media-desktop{display:none}
@media (min-width:769px){.hero-media-mobile{display:none}.hero-media-desktop{display:block}}
.hero::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:radial-gradient(60% 60% at 50% 50%, transparent 0%, rgba(5,5,6,.45) 70%, rgba(5,5,6,.78) 100%),linear-gradient(180deg, rgba(5,5,6,.30) 0%, transparent 30%, transparent 65%, rgba(5,5,6,.55) 100%)}
.hero-content{position:relative;z-index:3;padding:0 24px;max-width:840px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:rgba(246,244,239,.6);font-weight:500;margin-bottom:30px;opacity:0;animation:fade 1.2s ease 1.2s forwards}
.eyebrow .d{width:6px;height:6px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 10px var(--accent-2)}
h1.display{font-size:clamp(42px,7.2vw,86px);font-weight:700;line-height:1.0;letter-spacing:-.045em;color:var(--wht);opacity:0;animation:rise 1.3s cubic-bezier(.16,1,.3,1) 1.45s forwards}
.rot-line{display:block;min-height:1.05em}
.rot{color:var(--accent-2);font-style:normal}
.caret{display:inline-block;width:3px;height:.92em;background:var(--accent-2);margin-left:3px;vertical-align:text-bottom;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
@keyframes rise{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
@keyframes fade{to{opacity:1}}
.lede{max-width:580px;margin:28px auto 36px;font-size:clamp(15.5px,2vw,18.5px);line-height:1.55;color:rgba(246,244,239,.72);font-weight:500;opacity:0;animation:fade 1.2s ease 1.9s forwards}
.lede b{color:var(--wht);font-weight:600}
.cta-row{display:flex;gap:14px;align-items:center;justify-content:center;flex-wrap:wrap;opacity:0;animation:fade 1.2s ease 2.2s forwards}
.pill-lg{padding:14px 28px;font-size:13px}
.ghost-link{font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.10em;text-transform:uppercase;color:var(--wht);padding:14px 10px;transition:color .25s}
.ghost-link:hover{color:var(--accent-2)}
.micro{margin-top:24px;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(246,244,239,.45);font-weight:500;opacity:0;animation:fade 1.2s ease 2.5s forwards}

/* HUD telemetry */
.hud{position:absolute;left:0;right:0;bottom:0;z-index:4;display:flex;justify-content:space-between;padding:0 32px 22px;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;color:rgba(246,244,239,.5);text-transform:uppercase;pointer-events:none}
.hud-sep{opacity:.45;margin:0 8px}
@media(max-width:720px){.hud{font-size:10px;padding:0 18px 14px}.hud-r{display:none}}

/* ─── Page header (non-hero pages) ─── */
.page-head{padding:120px 0 60px;border-bottom:1px solid var(--line-2);background:var(--paper);position:relative}
.page-head h1{font-size:clamp(34px,5vw,58px);font-weight:700;letter-spacing:-.035em;line-height:1.05;max-width:760px}
.page-head .kicker{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:18px;display:block}
.page-head .lead{margin-top:22px;font-size:18px;color:var(--ink-2);max-width:620px;line-height:1.6;font-weight:500}

/* ─── SECTIONS ─── */
section.std{position:relative;z-index:3;padding:104px 0;border-top:1px solid var(--line-2)}
.seclabel{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:30px;font-weight:600}
.h2{font-family:var(--f);font-size:clamp(30px,4.6vw,50px);font-weight:700;line-height:1.04;letter-spacing:-.035em;max-width:760px}
.lead{max-width:580px;margin-top:18px;font-size:17.5px;color:var(--ink-2);font-weight:500;line-height:1.55}

/* MENTOR preview card */
.mbox{max-width:580px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 40px 90px -50px rgba(14,13,12,.4);overflow:hidden}
.mbox .top{padding:14px 20px;border-bottom:1px solid var(--line-2);font-family:var(--mono);font-size:11px;font-weight:500;color:var(--mute);letter-spacing:.10em;text-transform:uppercase}
.mbox .body{padding:22px 22px 8px}
.bub{max-width:88%;padding:13px 16px;border-radius:16px;font-size:14.5px;line-height:1.5;margin-bottom:14px}
.bub.u{background:var(--paper-2);margin-left:auto;border-bottom-right-radius:5px}
.bub.m{background:#1a1714;color:var(--paper);border-bottom-left-radius:5px}
.bub.m b{color:var(--accent-2)}
.opts{display:flex;flex-direction:column;gap:8px;padding:0 22px 18px}
.opt{border:1px solid var(--line);border-radius:11px;padding:11px 14px;font-size:14px;font-weight:500;color:var(--ink);transition:border-color .2s,background .2s,color .2s,transform .2s;cursor:pointer;background:transparent;text-align:left;font-family:inherit}
.opt:hover{border-color:var(--accent);background:var(--paper)}
.mbox .foot{padding:13px 22px;border-top:1px solid var(--line-2);font-family:var(--mono);font-size:11px;color:var(--mute);font-weight:500;display:flex;justify-content:space-between;align-items:center;letter-spacing:.06em;text-transform:uppercase}
.mbox .foot a{color:var(--accent);font-weight:600;text-decoration:none}

/* MENTOR 2-col row (landing) */
.mentor-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;max-width:1140px;margin:0 auto}
.mentor-row .mbox{margin:0;max-width:none}
.mentor-desc .lead{font-size:clamp(17px,1.5vw,20px);font-weight:500;line-height:1.55;color:var(--ink);letter-spacing:-.011em;margin-bottom:28px}
.mentor-bullets{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:18px}
.mentor-bullets li{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-top:1px solid var(--line)}
.mentor-bullets li:first-child{border-top:none;padding-top:0}
.mentor-bullets .nn{font-family:var(--mono);font-size:11px;font-weight:600;color:var(--accent);letter-spacing:.12em;flex-shrink:0;width:28px;line-height:1.65;padding-top:2px}
.mentor-bullets li span:last-child{font-size:14.5px;line-height:1.55;color:var(--ink-2)}
.mentor-bullets li b{color:var(--ink);font-weight:700}
@media(max-width:920px){.mentor-row{grid-template-columns:1fr;gap:38px}}

/* PLANS */
.plans{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:22px;overflow:hidden;margin-top:14px}
@media(max-width:760px){.plans{grid-template-columns:1fr}}
.plan{padding:38px 36px}
.plan+.plan{border-left:1px solid var(--line)}
@media(max-width:760px){.plan+.plan{border-left:none;border-top:1px solid var(--line)}}
.plan.pro{background:var(--ink);color:var(--paper)}
.pname{font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--mute);margin-bottom:18px}
.plan.pro .pname{color:var(--accent-2)}
.plan h3{font-size:22px;font-weight:700;letter-spacing:-.025em;margin-bottom:10px}
.plan .pdesc{font-size:14.5px;color:var(--ink-2);line-height:1.5;margin-bottom:22px;font-weight:500}
.plan.pro .pdesc{color:rgba(246,244,239,.7)}
.plan ul{list-style:none;margin-bottom:26px}
.plan li{display:flex;gap:12px;padding:10px 0;font-size:14.5px;border-bottom:1px solid var(--line-2);font-weight:500}
.plan.pro li{border-color:rgba(246,244,239,.1)}
.plan li .nn{font-family:var(--mono);color:var(--accent);font-weight:600;font-size:11px;width:22px;flex-shrink:0;padding-top:3px}
.plan.pro li .nn{color:var(--accent-2)}
.plan li em{color:var(--mute);font-style:normal}
.plan.pro li em{color:rgba(246,244,239,.55)}
.plan .cta{display:inline-block;font-family:var(--mono);font-size:12px;font-weight:600;text-decoration:none;color:var(--accent);letter-spacing:.08em;text-transform:uppercase}
.plan.pro .cta{color:var(--accent-2)}

/* METHOD 3-column */
.method{display:grid;grid-template-columns:repeat(3,1fr);gap:38px}
@media(max-width:820px){.method{grid-template-columns:1fr}}
.mcol h4{font-size:17px;font-weight:700;letter-spacing:-.02em;margin-bottom:12px;display:flex;gap:10px}
.mcol h4 .nn{font-family:var(--mono);color:var(--accent);font-size:12px;padding-top:3px}
.mcol p{font-size:14.5px;color:var(--ink-2);line-height:1.6;font-weight:500}

/* CASES */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:820px){.cases{grid-template-columns:1fr}}
.case{border-top:2px solid var(--ink);padding-top:20px}
.case .where{font-family:var(--mono);font-size:11px;font-weight:600;color:var(--mute);letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px}
.case .q{font-size:17px;font-weight:500;line-height:1.4;letter-spacing:-.01em}
.case .win{font-family:var(--mono);margin-top:16px;font-size:12px;color:var(--accent);font-weight:600;letter-spacing:.06em;text-transform:uppercase}

/* DEVELOPERS card */
.builders{background:var(--ink);color:var(--paper);border-radius:24px;padding:54px 48px;display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
@media(max-width:820px){.builders{grid-template-columns:1fr;padding:38px 26px;gap:28px}}
.builders h2{color:#fff;font-size:clamp(28px,4vw,42px);font-weight:700;letter-spacing:-.03em;line-height:1.05}
.builders p{color:rgba(246,244,239,.7);font-size:16px;line-height:1.6;margin:16px 0 26px;font-weight:500}
.builders .brow{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.builders .pill{background:var(--accent-2);color:#1a1206}
.builders .ghost-link{color:var(--paper)}
.code{background:#0a0908;border:1px solid rgba(246,244,239,.08);border-radius:14px;padding:22px;font-family:var(--mono);font-size:12.5px;line-height:1.7;color:#cfc9bd;overflow-x:auto}
.code .c{color:#6e685c}.code .k{color:var(--accent-2)}.code .s{color:#9bb36e}

/* FOOTER */
footer.std{position:relative;z-index:3;border-top:1px solid var(--line);padding:64px 0 46px;background:var(--paper)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:30px}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-grid h5{font-family:var(--mono);font-size:11px;letter-spacing:.10em;text-transform:uppercase;color:var(--mute);margin-bottom:15px;font-weight:600}
.foot-grid a{display:block;color:var(--ink-2);font-size:14px;margin-bottom:10px;font-weight:500;transition:color .15s}
.foot-brand .brand{display:flex;align-items:center;gap:6px;font-size:18px;font-weight:700;letter-spacing:-.02em;margin-bottom:0;line-height:1}
.foot-grid a:hover{color:var(--accent)}
.foot-brand p{font-size:14px;color:var(--mute);max-width:250px;line-height:1.6;font-weight:500;margin-top:12px}
.foot-base{margin-top:46px;padding-top:22px;border-top:1px solid var(--line-2);display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;color:var(--mute);flex-wrap:wrap;gap:10px;font-weight:500;letter-spacing:.08em;text-transform:uppercase}

/* GENERIC content for legal/long pages */
.prose{max-width:720px;margin:0 auto;padding:60px 28px 100px;font-size:16px;line-height:1.7;color:var(--ink-2);position:relative;z-index:3}
.prose h2{font-size:24px;font-weight:700;letter-spacing:-.02em;margin:42px 0 14px;color:var(--ink)}
.prose h3{font-size:18px;font-weight:600;margin:28px 0 10px;color:var(--ink)}
.prose p{margin-bottom:14px}
.prose ul, .prose ol{margin:14px 0 18px 26px}
.prose li{margin-bottom:6px}
.prose strong{color:var(--ink);font-weight:600}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--accent-2)}
.prose .meta{font-family:var(--mono);font-size:11px;letter-spacing:.10em;text-transform:uppercase;color:var(--mute);margin-bottom:30px;display:block}

/* FORMS */
.form-card{max-width:440px;margin:120px auto 80px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:42px 36px;box-shadow:0 30px 80px -50px rgba(14,13,12,.25);position:relative;z-index:3}
.form-card h1{font-size:32px;font-weight:700;letter-spacing:-.03em;margin-bottom:8px}
.form-card .sub{font-size:14.5px;color:var(--mute);margin-bottom:28px;line-height:1.5}
.form-card label{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.10em;text-transform:uppercase;color:var(--mute);font-weight:600;margin-bottom:7px;margin-top:18px}
.form-card input{width:100%;border:1px solid var(--line);border-radius:11px;padding:13px 14px;font-size:15px;font-family:inherit;background:var(--paper);transition:border-color .2s;outline:none}
.form-card input:focus{border-color:var(--accent)}
.form-card button{width:100%;margin-top:28px;background:var(--ink);color:var(--paper);border:none;border-radius:100px;padding:14px;font-family:var(--mono);font-size:12.5px;font-weight:600;letter-spacing:.10em;text-transform:uppercase;cursor:pointer;transition:transform .15s}
.form-card button:hover{transform:translateY(-1px)}
.form-card .alt{margin-top:20px;text-align:center;font-size:14px;color:var(--mute)}
.form-card .alt a{color:var(--accent);font-weight:600}

/* APP CARDS (home.html) */
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
@media(max-width:880px){.app-grid{grid-template-columns:1fr}}
.app-card{display:block;border:1px solid var(--line);border-radius:22px;padding:32px;background:var(--paper);transition:border-color .2s, transform .2s;text-decoration:none;color:var(--ink)}
.app-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.app-card h3{font-size:22px;font-weight:700;letter-spacing:-.025em;margin:18px 0 8px;color:var(--ink)}
.app-card p{font-size:14.5px;color:var(--ink-2);line-height:1.55;font-weight:500}
.app-card .open{margin-top:22px;font-family:var(--mono);font-size:11.5px;letter-spacing:.10em;text-transform:uppercase;color:var(--accent);font-weight:600}
.app-card .ico{width:44px;height:44px;border-radius:12px;border:1.5px solid var(--ink);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:700;font-size:14px;letter-spacing:-.02em}

/* fade-in for scroll-reveal */
.rv{opacity:0;transform:translateY(24px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}

/* utility */
.center{text-align:center}
.muted{color:var(--mute)}
.mentor-desc .sub{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:24px 0 14px;font-weight:600}


/* ─── Mobile nav hamburger (Stripe/Linear/Notion pattern) — 林董 2026-06-04 ─── */
.nav-hamburger{display:none;background:none;border:0;padding:8px;color:rgba(246,244,239,.75);cursor:pointer;border-radius:6px;transition:color .2s,background .2s}
.nav-hamburger:hover{color:var(--accent-2);background:rgba(255,255,255,.05)}
.ap-nav.lit .nav-hamburger{color:var(--ink-2)}
.ap-nav.lit .nav-hamburger:hover{background:rgba(14,13,12,.06)}
@media(max-width:768px){
  .nav-hamburger{display:inline-flex;align-items:center;justify-content:center}
  .nav-in{padding:14px 18px;gap:6px;justify-content:flex-start}
  /* nav-right 故意留顶栏(不进抽屉, 见 nav-mobile.js). 窄屏必须收窄 +
     截断超长内容(如登录态长 email), 否则撑破横向溢出(2026-06-16 维度C:
     pricing 121px / docs 124px 母病 = nav-right 固定 391px 从不收窄). */
  .nav-right{margin-left:auto;gap:10px;min-width:0}
  .nav-right a.signin{max-width:116px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  /* ★ backdrop-filter 删 — 96% 黑底已遮蔽背景, blur 0 视觉感知, 但在
     Safari iOS 创建 containing block 让后代 fixed (#lang-menu) 失效.
     删 = 拆真因 (非绕). ap-nav 顶部 sticky bar 的 backdrop-filter 不动. */
  .nav-links{position:fixed;top:60px;left:0;right:0;background:rgba(14,13,12,.96);flex-direction:column;align-items:stretch;gap:0;padding:20px 18px 32px;border-bottom:1px solid var(--line);max-height:calc(100vh - 60px);overflow-y:auto;transform:translateY(-110%);transition:transform .25s ease;visibility:hidden}
  body.nav-open .nav-links{display:flex;transform:translateY(0);visibility:visible}
  body.nav-open{overflow:hidden}
  .nav-links .nav-item{padding:14px 8px;cursor:default;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-links .nav-item.has-menu::after{display:none}
  .nav-links .nav-menu{position:static;opacity:1;visibility:visible;transform:none;background:none;border:0;box-shadow:none;padding:8px 0 4px;min-width:0;transition:none}
  .nav-links .nav-menu a{padding:9px 14px;font-size:14px;color:rgba(246,244,239,.88)}
  .nav-links .nav-menu a:hover{background:rgba(255,255,255,.06)}
  .nav-links .nav-menu a .sub{color:rgba(246,244,239,.5)}
  .ap-nav.lit .nav-links{background:rgba(246,244,239,.98)}
  .ap-nav.lit .nav-links .nav-menu a{color:var(--ink)}
}

/* W1 (终验audit): 尊重减弱动效 — 打字机/.rv/过渡全停 */
@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}.rv{opacity:1!important;transform:none!important}.caret{display:none!important}}