/* ================================================================
   style.css —— 首页样式 v2（明亮 · 粉彩 · 通透 · iOS 优化）
   新增：E2 时间线/作品/Now/星系邻居、E3 标本室、P2-1 可访问性、
         E4 视差与自定义光标、iPad 断点、P1-5 过渡
   ================================================================ */
:root{
  --a:#EC4899; --b:#8B5CF6; --c:#38BDF8; --bg:#FDF8FB;
  --fg:#3D3040; --fg2:#6E5F77; --card:#FFFFFF;
  --line:#F4E4F0; --line2:#F9EFF7;
  --shadow-sm:0 4px 16px -8px rgba(236,72,153,.16);
  --shadow-lg:0 24px 64px -20px rgba(139,92,246,.24);
  --r-lg:26px; --r-md:18px; --r-sm:12px;
  --ease:cubic-bezier(.22,1,.36,1);
  --sab:env(safe-area-inset-bottom,0px);
  --sat:env(safe-area-inset-top,0px);
  --sal:env(safe-area-inset-left,0px);
  --sar:env(safe-area-inset-right,0px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:'Nunito','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  background:var(--bg); color:var(--fg); line-height:1.8;
  -webkit-font-smoothing:antialiased; -webkit-tap-highlight-color:transparent;
  overflow-x:hidden; letter-spacing:.01em;
}
::selection{background:rgba(236,72,153,.2)}

/* ---------------- P2-1 skip-link / 屏幕阅读器辅助 ---------------- */
.skip-link{position:fixed;top:-60px;left:16px;z-index:200;padding:12px 22px;border-radius:14px;
  background:#fff;color:var(--fg);font-weight:800;font-size:14px;text-decoration:none;
  box-shadow:var(--shadow-lg);transition:top .25s var(--ease)}
.skip-link:focus-visible{top:calc(12px + var(--sat));outline:3px solid var(--c);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;border:0;
  clip:rect(0 0 0 0);clip-path:inset(50%);overflow:hidden;white-space:nowrap}
/* 全站可见焦点环（P2-1：原按钮无焦点环） */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:3px solid rgba(139,92,246,.55);outline-offset:2px;border-radius:14px}

/* ---------------- P1-5 View Transitions（不支持时自动无动画直跳） ---------------- */
::view-transition-old(root),::view-transition-new(root){animation:none;mix-blend-mode:normal}
.vt-fade{animation:vtFade .2s ease both}
@keyframes vtFade{from{opacity:0}to{opacity:1}}

/* ---------------- 极光渐变背景（柔和明亮） ---------------- */
.aurora{position:fixed;inset:0;z-index:-1;overflow:hidden;filter:blur(72px);opacity:.55;pointer-events:none}
.blob{position:absolute;border-radius:50%;mix-blend-mode:multiply;will-change:transform}
.b1{width:52vmax;height:52vmax;left:-16vmax;top:-14vmax;background:radial-gradient(circle at 32% 32%,rgba(236,72,153,.4),transparent 62%);animation:d1 26s var(--ease) infinite alternate}
.b2{width:44vmax;height:44vmax;right:-10vmax;top:8vmax;background:radial-gradient(circle at 58% 42%,rgba(139,92,246,.34),transparent 62%);animation:d2 32s var(--ease) infinite alternate}
.b3{width:40vmax;height:40vmax;left:14vmax;bottom:-16vmax;background:radial-gradient(circle at 50% 50%,rgba(56,189,248,.3),transparent 62%);animation:d3 29s var(--ease) infinite alternate}
.b4{width:30vmax;height:30vmax;right:12vmax;bottom:-6vmax;background:radial-gradient(circle at 50% 50%,rgba(250,204,21,.26),transparent 65%);animation:d1 36s var(--ease) infinite alternate-reverse}
@keyframes d1{from{transform:translate(0,0) scale(1)}to{transform:translate(9vw,6vh) scale(1.12)}}
@keyframes d2{from{transform:translate(0,0) scale(1.06)}to{transform:translate(-8vw,8vh) scale(.94)}}
@keyframes d3{from{transform:translate(0,0)}to{transform:translate(7vw,-7vh) rotate(18deg)}}

/* ---------------- 导航 ---------------- */
.nav{position:sticky;top:0;z-index:50;padding:calc(10px + var(--sat)) calc(14px + var(--sar)) 10px calc(14px + var(--sal))}
.nav-inner{max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:14px;
  padding:9px 18px;background:rgba(255,255,255,.75);-webkit-backdrop-filter:blur(18px) saturate(1.4);backdrop-filter:blur(18px) saturate(1.4);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
  border:1px solid rgba(255,255,255,.8);border-radius:999px;
  box-shadow:0 8px 32px -14px rgba(236,72,153,.28),0 1px 0 rgba(255,255,255,.9) inset}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:16px;color:var(--fg);text-decoration:none;letter-spacing:.01em}
.logo-dot{width:11px;height:11px;border-radius:50%;background:linear-gradient(135deg,var(--a),var(--b));
  box-shadow:0 0 10px rgba(236,72,153,.5);animation:pulse 2.8s ease-in-out infinite;flex-shrink:0}
@keyframes pulse{0%,100%{transform:scale(1);box-shadow:0 0 0 0 rgba(236,72,153,.35)}50%{transform:scale(1.16);box-shadow:0 0 0 7px rgba(236,72,153,0)}}
.links{display:flex;gap:2px;margin-left:auto}
.links a{color:var(--fg2);text-decoration:none;font-weight:700;font-size:13.5px;
  padding:9px 14px;border-radius:999px;transition:.25s var(--ease);min-height:38px;display:flex;align-items:center}
.links a:hover,.links a:active{color:var(--fg);background:rgba(236,72,153,.1)}
.nav-cosmos{position:relative}
.nav-cosmos::before{content:'✦';color:var(--b);margin-right:4px;font-size:12px}
.nav-planet{position:relative}
.nav-planet::before{content:'✧';color:var(--c);margin-right:4px;font-size:12px}
.badge-live{display:flex;align-items:center;gap:6px;font-size:11.5px;font-weight:800;color:#0B8A6D;
  background:rgba(16,185,129,.12);padding:6px 12px;border-radius:999px;flex-shrink:0}
.badge-live i{width:6px;height:6px;border-radius:50%;background:#10B981;animation:blink 1.8s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}

/* ---------------- Hero：左文右图 不对称 ---------------- */
.hero{max-width:1080px;margin:0 auto;padding:56px 24px 8px;min-height:76vh;display:grid;align-items:center;}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
@media(max-width:860px){.hero-inner{grid-template-columns:1fr;gap:26px}}
.hero-copy{max-width:520px}
.announce{display:flex;align-items:center;gap:9px;margin:0 0 22px;padding:9px 15px;
  background:rgba(255,255,255,.85);border:1px solid var(--line);border-radius:999px;
  font-size:13px;font-weight:700;color:var(--fg);box-shadow:var(--shadow-sm);width:fit-content;max-width:100%}
.announce .ic{width:16px;height:16px;stroke:var(--a);stroke-width:2;fill:none;stroke-linecap:round;flex-shrink:0}
.announce[hidden]{display:none}
.x{background:none;border:none;cursor:pointer;padding:6px;border-radius:9px;display:grid;place-items:center;flex-shrink:0}
.x svg{width:14px;height:14px;stroke:var(--fg2);stroke-width:2.2;fill:none;stroke-linecap:round}
.x:hover{background:rgba(0,0,0,.05)}
.hero-title{font-family:'ZCOOL KuaiLe','Nunito','PingFang SC','Microsoft YaHei',sans-serif;font-size:clamp(42px,8.5vw,76px);
  line-height:1.1;letter-spacing:.02em;margin-bottom:18px;
  background:linear-gradient(135deg,#EC4899 0%,#8B5CF6 52%,#38BDF8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 6px 24px rgba(236,72,153,.22))}
.hero-words{display:flex;gap:9px;flex-wrap:wrap;margin:0 0 18px;min-height:36px}
.hero-words span{display:inline-flex;padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.92);border:1px solid var(--line);
  font-weight:800;font-size:13.5px;color:var(--fg2);
  box-shadow:var(--shadow-sm);transition:.3s var(--ease)}
.hero-words span:hover{transform:translateY(-4px) rotate(-1.5deg);color:var(--a);border-color:rgba(236,72,153,.4)}
.hero-words span.hot{color:#fff;background:linear-gradient(135deg,var(--a),var(--b));border-color:transparent;
  transform:scale(1.08);box-shadow:0 10px 26px -8px rgba(139,92,246,.45)}
.hero-desc{color:var(--fg2);font-size:16px;margin-bottom:30px;max-width:46ch}
.hero-cta{display:flex;gap:13px;flex-wrap:wrap}

/* —— Hero 右侧的悬浮行星插画（纯 CSS，点进去宇宙页）—— */
.hero-art{position:relative;display:grid;place-items:center;aspect-ratio:1;max-width:340px;margin:0 auto;width:100%;
  border-radius:50%;text-decoration:none;-webkit-tap-highlight-color:transparent}
.hero-art:active{transform:scale(.97)}
.hero-art:active{transition:transform .2s var(--ease)}
.ha-glow{position:absolute;inset:-8%;border-radius:50%;
  background:radial-gradient(circle,rgba(139,92,246,.22) 0%,rgba(56,189,248,.1) 45%,transparent 68%);
  animation:breathe 5s ease-in-out infinite}
@keyframes breathe{0%,100%{transform:scale(1);opacity:.75}50%{transform:scale(1.07);opacity:1}}
.ha-planet{position:relative;z-index:1;width:46%;aspect-ratio:1;border-radius:50%;
  background:
    radial-gradient(circle at 30% 28%,#fbcfe8 0%,transparent 42%),
    radial-gradient(circle at 72% 66%,#c4b5fd 0%,transparent 46%),
    linear-gradient(150deg,#f9a8d4 0%,#c084fc 55%,#818cf8 100%);
  box-shadow:
    inset -16px -18px 42px rgba(129,86,190,.32),
    inset 10px 12px 26px rgba(255,255,255,.55),
    0 24px 60px -18px rgba(192,132,252,.55);
  animation:floaty 7s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-14px) rotate(2deg)}}
/* 环：完整椭圆，置于星球之后，由星球自然遮挡中段（土星环式立体感） */
.ha-ring{position:absolute;border-radius:50%;border:2px solid;pointer-events:none;z-index:0}
.ha-ring.r1{width:74%;aspect-ratio:1/.42;border-color:rgba(244,114,182,.55);top:44%;left:13%;transform:rotate(-14deg)}
.ha-ring.r2{width:88%;aspect-ratio:1/.5;border-color:rgba(167,139,250,.35);top:40%;left:6%;transform:rotate(10deg)}
.ha-orbit{position:absolute;inset:0;z-index:2;animation:orbit 10s linear infinite}
.ha-moon{position:absolute;top:6%;left:50%;width:9%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle at 36% 32%,#fff,#fde68a 60%,#fbbf24);
  box-shadow:0 4px 14px rgba(251,191,36,.5)}
@keyframes orbit{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.ha-stars i{position:absolute;width:5px;height:5px;border-radius:50%;background:#fff;
  box-shadow:0 0 8px 2px rgba(255,255,255,.9);animation:twk 3s ease-in-out infinite}
.ha-stars i:nth-child(1){top:12%;left:20%;background:#fbcfe8;box-shadow:0 0 10px 2px rgba(251,207,232,.8)}
.ha-stars i:nth-child(2){top:30%;right:12%;animation-delay:.8s;background:#c4b5fd;box-shadow:0 0 10px 2px rgba(196,181,253,.8)}
.ha-stars i:nth-child(3){bottom:20%;left:14%;animation-delay:1.6s;background:#bae6fd;box-shadow:0 0 10px 2px rgba(186,230,253,.9)}
.ha-stars i:nth-child(4){bottom:10%;right:22%;animation-delay:.4s}
.ha-stars i:nth-child(5){top:8%;left:58%;animation-delay:2s}
@keyframes twk{0%,100%{opacity:.3;transform:scale(.6)}50%{opacity:1;transform:scale(1.25)}}
.ha-tip{position:absolute;bottom:-6%;left:50%;transform:translateX(-50%);
  font-size:13px;font-weight:800;color:var(--fg2);white-space:nowrap;
  padding:8px 16px;border-radius:999px;background:rgba(255,255,255,.9);
  border:1px solid var(--line);box-shadow:var(--shadow-sm)}
/* 提示气泡用 bottom:-6% 定位，会溢出容器，需留出下方空间否则压到下一张卡 */
.hero-art{margin-bottom:30px}
.hero-art:hover .ha-tip{color:var(--a);border-color:rgba(236,72,153,.4)}

/* —— E2-4 星系邻居：hero 周围可点击小星点 —— */
.neighbors{position:absolute;inset:0}
.nb{position:absolute;left:var(--nb-x);top:var(--nb-y);width:26px;height:26px;border-radius:50%;
  background:radial-gradient(circle at 38% 34%,#fff 8%,var(--nb-h) 42%,transparent 74%);
  box-shadow:0 0 12px 2px color-mix(in srgb,var(--nb-h) 60%,transparent);
  animation:twk 3.6s ease-in-out infinite;transition:.3s var(--ease)}
.nb:nth-child(2){animation-delay:.7s}.nb:nth-child(3){animation-delay:1.5s}
.nb:nth-child(4){animation-delay:2.2s}.nb:nth-child(5){animation-delay:1.1s}
/* 星系邻居坐标（原内联 style，改 data-nb 以支持严格 CSP style-src 'self'） */
.nb[data-nb="1"]{--nb-x:6%;--nb-y:16%;--nb-h:#7dd3fc}
.nb[data-nb="2"]{--nb-x:88%;--nb-y:24%;--nb-h:#fb7185}
.nb[data-nb="3"]{--nb-x:10%;--nb-y:74%;--nb-h:#6ee7b7}
.nb[data-nb="4"]{--nb-x:84%;--nb-y:70%;--nb-h:#fcd34d}
.nb[data-nb="5"]{--nb-x:50%;--nb-y:4%;--nb-h:#c4b5fd}
.nb::after{content:attr(title);position:absolute;left:50%;top:-34px;transform:translateX(-50%) translateY(4px);
  white-space:nowrap;font-size:11.5px;font-weight:800;color:#fff;background:rgba(61,48,64,.85);
  padding:4px 10px;border-radius:8px;opacity:0;pointer-events:none;transition:.25s var(--ease)}
.nb:hover{transform:scale(1.5)}
.nb:hover::after{opacity:1;transform:translateX(-50%) translateY(0)}
.nb:focus-visible{outline:3px solid var(--nb-h);outline-offset:3px}

/* ---------------- 宇宙入口大卡 ---------------- */
.portal-wrap{max-width:1080px;margin:8px auto 0;padding:44px 24px 10px}
.portal-card{position:relative;display:grid;grid-template-columns:1fr 1.1fr;align-items:center;
  gap:28px;min-height:240px;padding:40px 44px;border-radius:32px;overflow:hidden;
  text-decoration:none;color:#fff;
  background:linear-gradient(135deg,#31225c 0%,#1d1440 48%,#0d1030 100%);
  box-shadow:0 8px 24px -10px rgba(29,20,64,.5),0 36px 90px -26px rgba(29,20,64,.65);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.portal-card:hover{transform:translateY(-6px);box-shadow:0 14px 34px -12px rgba(29,20,64,.55),0 48px 110px -28px rgba(139,92,246,.55)}
.portal-card:active{transform:translateY(-2px) scale(.99)}
.p-stars i{position:absolute;width:3px;height:3px;border-radius:50%;background:#fff;opacity:.8;animation:twk 3.5s ease-in-out infinite}
.p-stars i:nth-child(1){top:14%;left:12%}.p-stars i:nth-child(2){top:28%;right:18%;animation-delay:.7s}
.p-stars i:nth-child(3){bottom:22%;left:24%;animation-delay:1.4s;background:#c4b5fd}
.p-stars i:nth-child(4){top:52%;right:40%;animation-delay:2s;background:#fbcfe8}
.p-stars i:nth-child(5){bottom:34%;right:12%;animation-delay:.3s}
.p-stars i:nth-child(6){top:8%;right:46%;animation-delay:1.8s;background:#bae6fd}
.p-stars i:nth-child(7){bottom:12%;left:52%;animation-delay:2.4s}
.p-stars i:nth-child(8){top:64%;left:8%;animation-delay:1.1s;background:#fde68a}
.p-stars i:nth-child(9){top:36%;left:42%;animation-delay:2.8s;opacity:.5}
.p-stars i:nth-child(10){bottom:44%;right:30%;animation-delay:.9s}
.p-stars i:nth-child(11){top:20%;left:70%;animation-delay:1.2s;opacity:.6}
.p-stars i:nth-child(12){bottom:8%;right:60%;animation-delay:2.2s;background:#c4b5fd}
.p-band{position:absolute;left:-10%;right:-10%;top:38%;height:34%;
  background:radial-gradient(ellipse at 50% 50%,rgba(196,181,253,.3),rgba(56,189,248,.08) 60%,transparent 75%);
  filter:blur(18px);transform:rotate(-7deg);pointer-events:none}
.p-mini{position:absolute;border-radius:50%}
.p-mini.pm1{width:54px;height:54px;top:18%;right:14%;
  background:radial-gradient(circle at 32% 30%,#bae6fd,#38BDF8 58%,#0369a1);
  box-shadow:0 0 24px rgba(56,189,248,.55),inset -6px -8px 16px rgba(3,105,161,.5);animation:floaty 8s ease-in-out infinite}
.p-mini.pm2{width:36px;height:36px;bottom:26%;right:26%;
  background:radial-gradient(circle at 32% 30%,#fecdd3,#fb7185 58%,#be123c);
  box-shadow:0 0 18px rgba(251,113,133,.5),inset -4px -6px 12px rgba(190,18,60,.45);animation:floaty 6.5s ease-in-out infinite 1s}
.p-mini.pm3{width:22px;height:22px;top:58%;left:16%;
  background:radial-gradient(circle at 32% 30%,#fde68a,#fbbf24 60%,#b45309);
  box-shadow:0 0 14px rgba(251,191,36,.5);animation:floaty 9s ease-in-out infinite .5s}
.p-copy{position:relative;z-index:2;max-width:420px}
.p-copy h2{font-family:'ZCOOL KuaiLe','PingFang SC','Microsoft YaHei',sans-serif;font-size:clamp(26px,4.5vw,38px);margin-bottom:12px;
  background:linear-gradient(135deg,#e9d5ff,#f0abfc 55%,#7dd3fc);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.p-copy p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.85;letter-spacing:.02em}
.p-cta{margin-top:20px;background:#fff;color:#4c1d95;padding:12px 24px;font-size:14px;
  box-shadow:0 10px 26px -8px rgba(255,255,255,.35)}
.p-cta .ic{stroke:#4c1d95}
.btn-light{color:#4c1d95;background:#fff}
.p-cta:hover{transform:translateY(-3px)}
@media(max-width:720px){.portal-card{grid-template-columns:1fr;gap:14px;padding:30px 26px;min-height:0}.p-copy p br{display:none}}

/* ---------------- E2-2 时间线 ---------------- */
.timeline{position:relative;max-width:680px;margin:0 auto;list-style:none;padding-left:30px}
.timeline::before{content:'';position:absolute;left:9px;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--a),var(--b),var(--c));opacity:.5}
.tl-item{position:relative;padding:0 0 38px 22px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:-29px;top:8px;width:15px;height:15px;border-radius:50%;
  background:#fff;border:3.5px solid var(--b);box-shadow:0 0 0 5px rgba(139,92,246,.14);
  animation:pulse 3.2s ease-in-out infinite}
.tl-time{display:inline-block;font-size:12px;font-weight:800;color:var(--b);
  background:rgba(139,92,246,.1);padding:3px 12px;border-radius:999px;margin-bottom:8px}
.tl-item h3{font-size:20px;margin-bottom:7px}
.tl-item p{color:var(--fg2);font-size:14.5px;max-width:52ch;line-height:1.85}

/* ---------------- E2-3 Now 卡 ---------------- */
.now-card{max-width:680px;margin:0 auto;background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);
  border:1px solid rgba(255,255,255,.9);border-radius:28px;padding:34px 36px;
  box-shadow:var(--shadow-lg),0 1px 0 rgba(255,255,255,.9) inset}
.now-head{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.now-head h2{font-size:22px;letter-spacing:.04em}
.now-dot{width:10px;height:10px;border-radius:50%;background:#10B981;
  box-shadow:0 0 0 0 rgba(16,185,129,.4);animation:blink 2s infinite}
.now-list{list-style:none;display:grid;gap:14px}
.now-list li{display:flex;align-items:baseline;gap:14px;font-size:15px}
.now-list b{flex-shrink:0;width:44px;text-align:center;font-size:12.5px;color:#fff;
  background:linear-gradient(135deg,var(--a),var(--b));padding:3px 0;border-radius:8px;letter-spacing:.08em}
.now-list span{color:var(--fg);font-weight:600}
.now-foot{margin-top:18px;font-size:12.5px;color:var(--fg2);text-align:right}

/* ---------------- E3 AI 标本室 ---------------- */
.museum-bar{display:flex;align-items:center;gap:14px;max-width:680px;margin:0 auto 30px}
.museum-bar input{flex:1}
.museum-count{font-size:12.5px;color:var(--fg2);font-weight:700;white-space:nowrap}
.museum-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:1000px){.museum-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.museum-grid{grid-template-columns:1fr}}
.specimen{position:relative;background:var(--card);border:1px solid var(--line2);border-radius:var(--r-lg);
  padding:26px 24px 22px;box-shadow:var(--shadow-sm);transition:.4s var(--ease)}
.specimen:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.specimen.dim{display:none}
.specimen h3{font-size:16.5px;margin:14px 0 8px}
.sp-body{color:var(--fg2);font-size:13.5px;line-height:1.85;margin-bottom:12px}
.sp-how{font-size:12.5px;line-height:1.75;color:var(--fg);
  background:linear-gradient(135deg,rgba(236,72,153,.07),rgba(139,92,246,.07));
  border:1px dashed rgba(139,92,246,.3);border-radius:12px;padding:10px 14px}
.sp-kind{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:12px;
  font-weight:800;font-size:15px;color:#fff;font-family:ui-monospace,'Cascadia Code',Consolas,monospace}
.sp-kind-code{background:linear-gradient(135deg,#6366F1,#8B5CF6)}
.sp-kind-text{background:linear-gradient(135deg,#EC4899,#F472B6);width:auto;padding:0 12px}
.sp-kind-art{background:linear-gradient(135deg,#F59E0B,#FBBF24)}

/* ---------------- 按钮 ---------------- */
.btn{display:inline-flex;align-items:center;gap:9px;font:inherit;font-weight:800;font-size:14.5px;
  padding:13px 26px;border-radius:999px;border:none;cursor:pointer;text-decoration:none;min-height:48px;
  transition:.28s var(--ease);white-space:nowrap;-webkit-tap-highlight-color:transparent}
.btn .ic{width:17px;height:17px;stroke:currentColor;stroke-width:2.1;fill:none;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--a),var(--b));
  box-shadow:0 12px 30px -10px rgba(236,72,153,.55)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 42px -12px rgba(139,92,246,.6)}
.btn-primary:active{transform:translateY(-1px) scale(.98)}
.btn-ghost{color:var(--fg);background:rgba(255,255,255,.9);border:1px solid var(--line)}
.btn-ghost:hover{transform:translateY(-3px);border-color:rgba(236,72,153,.45);color:var(--a)}
.btn-ghost .ic{transition:transform .28s var(--ease)}
.btn-ghost:hover .ic{transform:translateY(3px)}
.btn-mini{font:inherit;font-size:12.5px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--b),var(--c));padding:8px 16px;border:none;border-radius:999px;
  cursor:pointer;transition:.24s var(--ease);min-height:34px}
.btn-mini:hover{transform:translateY(-2px);box-shadow:0 8px 20px -8px rgba(99,102,241,.55)}
.wide{width:100%;justify-content:center}

/* ---------------- 区块 ---------------- */
.section{max-width:1080px;margin:0 auto;padding:104px 24px 92px;scroll-margin-top:88px}
.sec-head{text-align:center;margin-bottom:50px}
.sec-head h2{font-size:clamp(26px,4.6vw,36px);font-weight:800;letter-spacing:.02em}
.sec-head p{color:var(--fg2);margin-top:10px;font-weight:600;letter-spacing:.05em}
.grid{display:grid;grid-template-columns:1.65fr 1fr;gap:22px}
.grid .card:first-child{grid-row:span 2}
.grid .card:first-child .g-icon{width:60px;height:60px}
.grid .card:first-child h3{font-size:20px}
.grid .card:first-child p{font-size:15px}
@media(max-width:860px){.grid{grid-template-columns:1fr 1fr}.grid .card:first-child{grid-row:auto}}
@media(max-width:620px){.grid{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line2);border-radius:var(--r-lg);
  padding:30px 28px;box-shadow:var(--shadow-sm),0 1px 0 rgba(255,255,255,.9) inset;
  transition:.4s var(--ease)}
.card:nth-child(even){border-radius:20px}
.card:hover{transform:translateY(-8px) rotate(-.4deg);box-shadow:var(--shadow-lg),0 1px 0 rgba(255,255,255,.9) inset}
.g-icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;margin-bottom:18px;
  box-shadow:0 8px 20px -6px rgba(0,0,0,.16)}
.g-icon svg{width:25px;height:25px;stroke:#fff;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.g-icon.g0{background:linear-gradient(135deg,#F472B6,#EC4899)}
.g-icon.g1{background:linear-gradient(135deg,#818CF8,#8B5CF6)}
.g-icon.g2{background:linear-gradient(135deg,#F87171,#FB7185)}
.g-icon.g3{background:linear-gradient(135deg,#38BDF8,#0EA5E9)}
.g-icon.g4{background:linear-gradient(135deg,#FACC15,#F97316)}
.g-icon.g5{background:linear-gradient(135deg,#4ADE80,#10B981)}
.card h3{font-size:17.5px;margin-bottom:8px}
.card p{color:var(--fg2);font-size:14px;line-height:1.85}

/* ---------------- 关于（错位布局） ---------------- */
.about-card{background:rgba(255,255,255,.88);-webkit-backdrop-filter:blur(14px) saturate(1.3);backdrop-filter:blur(14px) saturate(1.3);
  -webkit-backdrop-filter:blur(14px) saturate(1.3);
  border:1px solid rgba(255,255,255,.9);border-radius:30px;padding:46px 44px;
  box-shadow:var(--shadow-lg),0 1px 0 rgba(255,255,255,.9) inset;
  display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center}
.about-main h2{font-size:clamp(22px,4vw,30px);margin-bottom:14px}
.about-main p{color:var(--fg2);font-size:15.5px;max-width:62ch}
.stats{display:grid;grid-template-columns:1fr;gap:12px}
.stat{background:linear-gradient(135deg,rgba(251,207,232,.14),rgba(196,181,253,.14));
  border:1px solid var(--line);border-radius:16px;padding:16px 20px;text-align:center}
.stat b{display:block;font-size:26px;background:linear-gradient(135deg,var(--a),var(--b));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:12px;color:var(--fg2);font-weight:700}
@media(max-width:780px){.about-card{grid-template-columns:1fr;padding:32px 26px;gap:22px}
  .stats{grid-template-columns:repeat(3,1fr);gap:10px}.stat{padding:12px 8px}.stat b{font-size:20px}}

/* ---------------- 留言（信箱气泡流） ---------------- */
.guest-wrap{max-width:760px;margin:0 auto;display:grid;gap:20px}
.msg-list{list-style:none;display:grid;gap:14px}
.msg-list li{display:flex;gap:12px;align-items:flex-start;animation:pop .5s var(--ease) both}
.msg-list .avatar{flex:none;width:40px;height:40px;border-radius:14px;display:grid;place-items:center;
  color:#fff;font-weight:800;font-size:16px;
  box-shadow:0 6px 14px -6px rgba(88,62,132,.45)}
.msg-list .bubble{min-width:0;flex:1;background:var(--card);border:1px solid var(--line);
  border-radius:4px 18px 18px 18px;padding:12px 16px 13px;box-shadow:var(--shadow-sm);
  transition:.3s var(--ease)}
.msg-list li:hover .bubble{border-color:rgba(139,92,246,.32);transform:translateY(-2px)}
.msg-list .b-head{display:flex;align-items:baseline;gap:9px;flex-wrap:wrap}
.msg-list .who{font-weight:800;font-size:13.5px;color:#6D28D9;letter-spacing:.01em}
.msg-list .when{font-size:11px;color:var(--fg2);font-weight:600}
.msg-list .body{margin:4px 0 0;font-size:14.5px;line-height:1.75;white-space:pre-wrap;word-break:break-word}
.msg-list .empty{display:block;border:none;background:none;box-shadow:none;color:var(--fg2);
  text-align:center;padding:22px 10px;font-weight:600}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:none}}
input,textarea{font:inherit;font-size:15px;width:100%;padding:13px 16px;border-radius:14px;
  background:#fff;border:1.5px solid var(--line);color:var(--fg);outline:none;
  transition:.24s var(--ease);-webkit-appearance:none;appearance:none;min-height:48px}
input:focus,textarea:focus{border-color:rgba(236,72,153,.55);box-shadow:0 0 0 4px rgba(236,72,153,.12)}
.msg-form{display:grid;gap:10px;border-radius:22px;padding:16px 16px 14px;box-shadow:var(--shadow-sm)}
.msg-form.card:hover{transform:none;box-shadow:var(--shadow-sm),0 1px 0 rgba(255,255,255,.9) inset}
.msg-form textarea{min-height:64px;resize:none;line-height:1.7}
.mf-foot{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.mf-foot input{flex:1;min-width:0;min-height:44px;padding:10px 16px;border-radius:999px;font-size:14px}
.mf-hint{flex:none;font-size:12px;font-weight:600;max-width:44%;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;color:var(--fg2)}
.mf-counter{flex:none;font-size:12px;color:var(--fg2);font-weight:600;font-variant-numeric:tabular-nums}
.mf-send{flex:none;display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:0 18px;
  border:none;border-radius:999px;cursor:pointer;font:inherit;font-size:14px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--a),var(--b));
  box-shadow:0 8px 18px -8px rgba(236,72,153,.62);transition:.25s var(--ease)}
.mf-send svg{width:15px;height:15px;stroke:#fff;stroke-width:2.2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.mf-send:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 24px -8px rgba(236,72,153,.72)}
.mf-send:disabled{opacity:.55;cursor:default}
@media(max-width:620px){
  .msg-list .avatar{width:34px;height:34px;border-radius:12px;font-size:14px}
  .msg-form{padding:13px 13px 12px}
  .mf-foot input{order:1;flex-basis:100%}
  .mf-hint{order:2;flex:1;max-width:none}
  .mf-counter{order:3}
  .mf-send{order:4;margin-left:auto;padding:0 16px}
}

/* ---------------- 后台入口 & 页脚 ---------------- */
.admin-entry{max-width:1080px;margin:0 auto;padding:6px 24px calc(30px + var(--sab));display:flex;justify-content:center}
.admin-box{display:flex;align-items:center;gap:12px;padding:10px 13px 10px 19px;
  background:rgba(255,255,255,.72);border:1px dashed rgba(139,92,246,.42);border-radius:999px;
  font-size:13px;font-weight:700;color:var(--fg2);transition:.3s var(--ease)}
.admin-box:hover{background:#fff;box-shadow:var(--shadow-sm)}
.admin-box .ic{width:16px;height:16px;stroke:var(--b);stroke-width:2;fill:none;stroke-linecap:round}
.foot{text-align:center;padding:calc(18px + var(--sab)) 20px 42px;color:var(--fg2);font-size:13px;font-weight:600}

/* ---------------- 弹窗 ---------------- */
.modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px;
  background:rgba(61,48,64,.38);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);animation:fade .25s ease}
.modal[hidden]{display:none}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal-card{width:min(92vw,380px);background:rgba(255,255,255,.97);border-radius:26px;padding:34px 30px;
  box-shadow:0 8px 24px -8px rgba(0,0,0,.2),0 40px 90px -24px rgba(139,92,246,.4);
  position:relative;animation:pop .4s var(--ease)}
.modal-card h3{font-size:22px;margin-bottom:6px}
.modal-card .muted{color:var(--fg2);font-size:13px;margin-bottom:20px;font-weight:600}
.modal-x{position:absolute;top:16px;right:16px}
.modal-err{color:#BE123C;font-size:13px;font-weight:700;min-height:18px;margin-top:8px}

/* ---------------- E4 自定义光标（仅 pointer:fine 桌面） ---------------- */
@media (hover:hover) and (pointer:fine){
}

/* ---------------- E4 首页视差（scroll-timeline 原生，Safari 15 降级无效果但不报错） ---------------- */
@supports (animation-timeline: scroll()){
  .hero-art{animation:heroPar linear both;animation-timeline:scroll(root block)}
  @keyframes heroPar{from{transform:translateY(0) rotate(0)}to{transform:translateY(-70px) rotate(4deg)}}
}

/* ---------------- 滚动入场 ---------------- */
.reveal{opacity:0;transform:translateY(40px);
  transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.grid .card.reveal:nth-child(2).in{transition-delay:.1s}
.grid .card.reveal:nth-child(3).in{transition-delay:.2s}
.grid .card.reveal:nth-child(4).in{transition-delay:.3s}
.works-grid .work-card.reveal:nth-child(2).in{transition-delay:.08s}
.works-grid .work-card.reveal:nth-child(3).in{transition-delay:.16s}
.works-grid .work-card.reveal:nth-child(4).in{transition-delay:.24s}
.museum-grid .specimen.reveal:nth-child(3n+2).in{transition-delay:.08s}
.museum-grid .specimen.reveal:nth-child(3n+3).in{transition-delay:.16s}
.timeline .tl-item.reveal:nth-child(2).in{transition-delay:.06s}
.timeline .tl-item.reveal:nth-child(3).in{transition-delay:.12s}
.timeline .tl-item.reveal:nth-child(4).in{transition-delay:.18s}
.timeline .tl-item.reveal:nth-child(5).in{transition-delay:.24s}

/* ---------------- iOS / 移动端专项优化 ---------------- */
@media (max-width:640px){
  /* 手机端导航：两行布局（品牌 + 在线徽标一行，链接一行可横滑），避免 6 个入口把胶囊撑破 */
  .nav-inner{flex-wrap:wrap;row-gap:6px;padding:9px 14px;border-radius:24px}
  .logo{flex:1 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .links{order:3;flex:1 1 100%;min-width:0;margin-left:0;gap:0;justify-content:space-between;
    overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .links::-webkit-scrollbar{display:none}
  .links a{font-size:12px;padding:8px 9px;white-space:nowrap;flex:0 0 auto}
  .badge-live{padding:5px 9px;font-size:10.5px}
  .nav-inner{padding:8px 12px;gap:8px}
  .logo{font-size:14px}
  .hero{padding:34px 18px 0;min-height:0}
  .hero-title{font-size:clamp(38px,11vw,52px)}
  .hero-desc{font-size:14.5px;margin-bottom:24px}
  .hero-cta .btn{flex:1;justify-content:center;padding:14px 18px}
  .hero-art{max-width:250px;order:-1;margin-bottom:8px}
  .ha-tip{font-size:11.5px;padding:7px 13px}
  .nb{width:20px;height:20px}
  .portal-wrap{padding:30px 18px 6px}
  .portal-card{padding:26px 22px;border-radius:24px}
  .p-copy h2{font-size:24px}
  .p-copy p{font-size:13px}
  .p-cta{padding:11px 20px;font-size:13px}
  .section{padding:64px 18px}
  .sec-head{margin-bottom:30px}
  .card{padding:22px 20px;border-radius:20px}
  .card:nth-child(even){border-radius:15px}
  .stats .stat{border-radius:12px}
  .admin-box{font-size:12px}
  .timeline{padding-left:24px}
  .now-card{padding:26px 22px}
  .now-list li{flex-direction:column;gap:6px}
  .now-list b{width:100%}
  .museum-bar{flex-direction:column;gap:10px;margin-bottom:24px}
  .museum-count{align-self:flex-end}
}

/* ---------------- iPad / 平板断点（含 iPad Pro） ---------------- */
@media (min-width:768px) and (max-width:1366px) and (pointer:coarse){
  .hero{min-height:0;padding-top:44px}
  .hero-inner{gap:30px}
  .hero-art{max-width:300px}
  .section{padding:72px 30px}
  .works-grid{gap:18px}
  .work-card .wk-body{padding:16px 18px 18px}
  .now-card{padding:30px 30px}
  .timeline{padding-left:28px}
  .links a{font-size:14px;padding:10px 13px;min-height:44px}
  .btn{min-height:50px}
  .wk-body b{font-size:17px}
}
/* iPad Pro 横屏 12.9"：1366×1024，放宽主栏 */
@media (min-width:1300px) and (pointer:coarse){
  .nav-inner,.hero,.portal-wrap,.section{max-width:980px}
  .hero-inner{gap:44px}
  .hero-art{max-width:360px}
}

/* iPhone 横屏等超小高度 */
@media (max-height:640px) and (orientation:landscape){
  .hero{padding-top:20px;min-height:0}
  .hero-art{max-width:180px}
  .ha-tip{display:none}
  .nb{display:none}
}
/* 触屏无 hover 时的焦点可见性 */
@media (hover:none){
  .card:hover{transform:none;box-shadow:var(--shadow-sm)}
  .btn:hover{transform:none}
  .hero-words span:hover{transform:none;color:var(--fg2)}
  .work-card:hover{transform:none}
  .nb:hover{transform:scale(1.25)}
  .nb:hover::after{opacity:1;transform:translateX(-50%) translateY(0)}
}
/* iOS 输入字号 ≥16px 防聚焦自动放大（上方 input 已 15px，聚焦场景再兜底） */
@supports (-webkit-touch-callout:none){
  input,textarea{font-size:16px}
  body{-webkit-user-select:none;user-select:none}
  input,textarea{-webkit-user-select:text;user-select:text}
}
/* ================= 桌面端强化（电脑为主） ================= */
@media (min-width:1200px){
  .hero{min-height:0;padding-top:72px;padding-bottom:64px}
  .hero-art{max-width:380px}
  .hero-desc{font-size:16.5px}
  .portal-card{padding:48px 52px;min-height:260px}
  .section{padding:110px 24px}
  .grid{gap:24px}
  .card{padding:34px 30px}
  .about-card{padding:54px 50px;gap:44px}
  .about-main p{font-size:16px}
  .stat b{font-size:30px}
}
@media (min-width:1600px){
  .nav-inner,.hero,.portal-wrap,.section{max-width:1180px}
  .hero-title{font-size:82px}
}
/* 桌面平滑滚动条 */
@media (pointer:fine){
  ::-webkit-scrollbar{width:12px}
  ::-webkit-scrollbar-track{background:transparent}
  ::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(236,72,153,.4),rgba(139,92,246,.4));border-radius:8px;border:3px solid var(--bg)}
  ::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,rgba(236,72,153,.6),rgba(139,92,246,.6))}
  html{scrollbar-width:thin;scrollbar-color:rgba(139,92,246,.45) transparent}
}
/* 桌面专属微交互 */
@media (hover:hover) and (pointer:fine){
  .hero-art{transition:transform .45s cubic-bezier(.22,1,.36,1)}
  .hero-art:hover{transform:scale(1.03) rotate(1deg)}
  .hero-art:hover .ha-planet{animation-duration:4.5s}
  .hero-art:hover .ha-glow{opacity:1}
  .portal-card .p-cta{transition:transform .25s cubic-bezier(.22,1,.36,1),box-shadow .25s}
  .portal-card:hover .p-cta{transform:translateX(4px);box-shadow:0 14px 30px -10px rgba(255,255,255,.45)}
  .portal-card:hover .p-mini.pm1{transform:translateY(-10px) scale(1.08)}
  .portal-card:hover .p-mini.pm2{transform:translateY(8px) scale(1.12)}
  .card:hover .g-icon{transform:scale(1.08) rotate(-4deg);transition:transform .35s cubic-bezier(.22,1,.36,1)}
  .g-icon{transition:transform .35s cubic-bezier(.22,1,.36,1)}
}
/* 文字选中色彩 */
@media (pointer:fine){
  .hero-title::selection{background:rgba(139,92,246,.3);color:transparent}
}
/* ================= E4 prefers-reduced-motion 全站覆盖 ================= */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001s!important;
    animation-iteration-count:1!important;
    transition-duration:.001s!important}
  .reveal{opacity:1;transform:none}
  .aurora .blob{animation:none}
  .hero-art{animation:none!important}
  .nb,.wk-planet,.wk-moon,.tl-dot,.logo-dot,.badge-live i{animation:none}
  /* 自定义光标在 reduced-motion 下退回系统光标 */
}


/* 极窄机型（≤480px）：导航只留四个核心入口，其余内容滚动可达，避免挤成豆腐块 */
@media (max-width:480px){
  .links a[data-nav="cards"],.links a[data-nav="about"]{display:none}
}

/* ================================================================
   v3 UI/UX 复查批次：统一设计令牌 + 表单可见 label + Bento + 动效规范
   ================================================================ */
:root {
  /* 间距节奏 */
  --space-1: 4px;  --space-2: 8px;  --space-3: 16px; --space-4: 24px;
  --space-5: 32px; --space-6: 48px; --space-7: 72px; --space-8: 96px;
  /* 圆角 */
  --radius-sm: 10px; --radius-md: 16px; --radius-lg: 24px; --radius-pill: 999px;
  /* 缓动与时长 */
  --ease-out-expo: cubic-bezier(.16, 1, .3, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
  --ease-spring: cubic-bezier(.34, 1.56, .64, 1);
  --duration-fast: 150ms; --duration-base: 250ms;
  --duration-enter: 500ms; --duration-scene: 800ms;
  /* 沉浸页暗色强调（cosmos/planet/scenes/cards 已在各自文件使用近似值，这里作为统一基准） */
  --accent-pink: #f29ac2; --accent-violet: #a99bff;
  --accent-cyan: #8fe5e5; --accent-gold: #f3c98b;
}

/* ---- 留言表单：可见 label（不再只靠 placeholder） ---- */
.f-cell { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.f-label {
  font-size: 12px; font-weight: 800; letter-spacing: .08em;
  color: var(--fg2); margin-bottom: 6px;
}
#hint.ok { color: #059669; font-weight: 700; }
#hint.err { color: #e11d48; font-weight: 700; }

/* ---- 标本室折叠 ---- */
.specimen.folded { display: none; }
.museum-more {
  display: block; margin: 6px auto 0;
  appearance: none; cursor: pointer;
  border: 1.5px dashed rgba(139, 92, 246, .35); border-radius: 999px;
  background: transparent; color: var(--fg2);
  font-family: inherit; font-size: 13px; font-weight: 700;
  padding: 10px 26px; min-height: 44px;
  transition: all var(--duration-base) var(--ease);
}
.museum-more:hover { color: var(--fg); border-color: var(--b); background: rgba(139, 92, 246, .08); }
.museum-more:focus-visible { outline: 2px solid var(--b); outline-offset: 2px; }

/* ---- 作品区 Bento：小宇宙占主位（跨两行），其余错落 ---- */
.works-grid { grid-template-columns: 1.25fr 1fr; align-items: stretch; }
.work-card:first-child { grid-row: span 2; }
.work-card:first-child .wk-cover { aspect-ratio: 16 / 13; }
.work-card:first-child .wk-body b { font-size: 19px; }
@media (max-width: 860px) {
  .works-grid { grid-template-columns: 1fr 1fr; }
  .work-card:first-child { grid-row: auto; grid-column: span 2; }
  .work-card:first-child .wk-cover { aspect-ratio: 16 / 9; }
}
@media (max-width: 620px) {
  .work-card:first-child { grid-column: auto; }
}

/* ---- 按钮微交互与焦点可见（全站基底） ---- */
.btn:active, .btn-mini:active { transform: scale(.97); }
.btn:focus-visible, .btn-mini:focus-visible, .g-card:focus-visible {
  outline: 2px solid var(--b); outline-offset: 2px;
}
#name:focus-visible, #text:focus-visible, #adminPass:focus-visible {
  outline: 2px solid var(--b); outline-offset: 1px;
}

/* ---- 减弱动态：全局关停 CSS 动画与过渡（JS 侧各自判断 prefers-reduced-motion） ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 移动端触摸底线：所有可点元素 ≥44px */
@media (max-width: 640px) {
  .btn, .btn-mini, .museum-more { min-height: 44px; }
  .btn-mini { padding: 10px 18px; }
}

/* ---- v4 星图目录（首页瘦身的入口卡） ---- */
.map-bigs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 16px; }
.map-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.map-card {
  display: flex; flex-direction: column; gap: 6px;
  text-decoration: none; color: inherit;
  background: var(--card); border: 1px solid var(--line2); border-radius: var(--r-md);
  padding: 18px 20px;
  transition: transform var(--duration-base, 250ms) var(--ease-out-expo, ease),
              opacity var(--duration-base, 250ms) ease,
              box-shadow var(--duration-base, 250ms) ease;
}
.map-card b { font-size: 16px; }
.map-card span { font-size: 13px; color: var(--fg2); line-height: 1.6; }
.map-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); opacity: .96; }
.map-card:focus-visible { outline: 2px solid var(--b); outline-offset: 2px; }
.map-card.big { padding: 26px 24px; }
.map-card.big b { font-size: 20px; }
.map-card.big span { font-size: 13.5px; }
@media (max-width: 860px) {
  .map-bigs { grid-template-columns: 1fr; }
  .map-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .map-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .map-card { padding: 14px 16px; }
}

/* NOW 卡内的内联统计(v4:随关于区块瘦身迁入) */
.stats-inline { display: flex; gap: 22px; margin: 18px 0 4px; padding-top: 16px; border-top: 1px dashed rgba(139,92,246,.18); flex-wrap: wrap; }
.stats-inline .stat { display: flex; align-items: baseline; gap: 6px; white-space: nowrap; }
.stats-inline .stat b { font-size: 20px; font-weight: 800; color: var(--b); }
.stats-inline .stat span { font-size: 12px; color: var(--fg2); white-space: nowrap; }

/* 窄屏：统计项两列排布，避免「在线分钟」被压成三行 */
@media (max-width: 420px){
  .stats-inline { gap: 14px; }
  .stats-inline .stat { flex: 0 0 calc(50% - 7px); }
}

/* 极窄屏装饰层溢出裁切（实测 320px 时 .aurora/.blob 越界 16px） */
html { overflow-x: clip; }
.aurora { overflow: hidden; }

/* iOS Safari：输入控件字号 ≥16px，避免聚焦时页面自动放大 */
@media(max-width:620px){input,textarea,select{font-size:16px}}

/* ---------------- 无 JS 降级：脚本未执行时内容必须可见 ---------------- */
/* .reveal 默认 opacity:0 依赖 app.js 加 .in，JS 被禁用/加载失败时会整站空白。
   <html class="no-js"> 由 /js-on.js 同步移除，所以只有脚本真的没跑才会命中。 */
html.no-js .reveal { opacity: 1; transform: none; }
html.no-js .hero-art { animation: none; }