/* ==========================================================================
   南医助手 · NJMU-Helper  站点样式
   主题：南医蓝（#005bac / #2e8bd6 / #9dc3f0）+ 深色玻璃拟态
   ========================================================================== */

/* ---------- tokens ---------- */
:root{
  --bg:#05090f;
  --bg-2:#080e18;
  --ink:#eaf1ff;
  --ink-2:#c6d5ea;
  --muted:#8497b3;
  --dim:#61748c;

  --b1:#005bac;
  --b2:#2e8bd6;
  --b3:#9dc3f0;
  --b4:#4a9fe0;

  --line:rgba(255,255,255,.075);
  --line-2:rgba(255,255,255,.14);
  --line-3:rgba(157,195,240,.3);
  --glass:rgba(255,255,255,.042);
  --glass-2:rgba(255,255,255,.075);

  --ease:cubic-bezier(.22,.68,0,1);
  --ease-soft:cubic-bezier(.4,0,.2,1);
  --ease-back:cubic-bezier(.34,1.4,.64,1);

  --radius:22px;
  --radius-lg:28px;
  --shadow:0 30px 80px -30px rgba(0,0,0,.85);
  --glow:0 30px 70px -34px rgba(0,91,172,.75);

  --font:"HarmonyOS Sans SC","PingFang SC","MiSans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"SF Mono","JetBrains Mono","Cascadia Code",ui-monospace,Menlo,Consolas,monospace;
  --max:1200px;
  --nav-h:72px;
  --sec-pad:128px;
}

*{box-sizing:border-box}
html{
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--nav-h) + 26px);
  -webkit-text-size-adjust:100%;
}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.7;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
  animation:pageIn .6s var(--ease-soft) both;
}
@keyframes pageIn{from{opacity:0}to{opacity:1}}

::selection{background:rgba(0,91,172,.42);color:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block;background:linear-gradient(160deg,#101a2a,#0a1220)}
button{font-family:inherit;border:0;background:none;color:inherit;cursor:pointer;padding:0}
code{
  font-family:var(--mono);font-size:.9em;padding:1.5px 5px;border-radius:5px;
  background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.06);color:#cfe2ff;
}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.022em;line-height:1.16}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--b3);outline-offset:3px;border-radius:6px}

/* ---------- background chrome ---------- */
.bg-layer{position:fixed;inset:0;z-index:-3;overflow:hidden;pointer-events:none}
.bg-layer::before{
  content:"";position:absolute;inset:-22%;
  background:
    radial-gradient(46% 38% at 78% 6%,rgba(0,91,172,.34),transparent 62%),
    radial-gradient(34% 30% at 10% 20%,rgba(46,139,214,.14),transparent 65%),
    radial-gradient(52% 44% at 54% 94%,rgba(46,139,214,.16),transparent 68%);
  filter:blur(12px);
  animation:drift 26s ease-in-out infinite alternate;
}
@keyframes drift{
  0%{transform:translate3d(0,0,0) scale(1)}
  100%{transform:translate3d(-2.5%,2%,0) scale(1.07)}
}
.bg-grid{
  position:fixed;inset:0;z-index:-3;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse 72% 56% at 50% 0%,#000 18%,transparent 78%);
  mask-image:radial-gradient(ellipse 72% 56% at 50% 0%,#000 18%,transparent 78%);
  opacity:.55;
}
.grain{
  position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.26;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

/* 顶部落读进度 */
.progress{
  position:fixed;top:0;left:0;height:2px;z-index:90;width:0;
  background:linear-gradient(90deg,var(--b1),var(--b2) 45%,var(--b3));
  box-shadow:0 0 14px rgba(46,139,214,.85);
  transition:width .09s linear;
  pointer-events:none;
}

/* 指针柔光 */
.spot{
  position:fixed;top:0;left:0;width:560px;height:560px;border-radius:50%;z-index:-1;
  pointer-events:none;opacity:0;transition:opacity .5s ease;
  background:radial-gradient(circle,rgba(46,139,214,.16),rgba(0,91,172,.06) 42%,transparent 66%);
  filter:blur(24px);
  transform:translate3d(-9999px,-9999px,0);
  will-change:transform;
}
body.has-pointer .spot{opacity:1}

/* ---------- layout ---------- */
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 26px}
section{position:relative}
.sec{padding-top:var(--sec-pad)}
.sec-head{max-width:740px;margin-bottom:54px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--b3);font-weight:600;margin-bottom:18px;
}
.eyebrow::before{
  content:"";width:26px;height:1px;
  background:linear-gradient(90deg,var(--b3),transparent);
}
.sec-head h2{font-size:clamp(28px,3.5vw,44px);letter-spacing:-.03em;margin-bottom:16px}
.sec-head p{color:var(--muted);font-size:15.5px;max-width:620px;text-wrap:pretty}
em.hl{
  font-style:normal;
  background:linear-gradient(96deg,var(--b3),var(--b2) 52%,var(--b3));
  background-size:200% auto;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:sheen 8s linear infinite;
}
@keyframes sheen{to{background-position:200% center}}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:70;
  border-bottom:1px solid transparent;
  transition:transform .45s var(--ease),background .35s ease,border-color .35s ease,backdrop-filter .35s ease;
}
.nav.scrolled{
  background:rgba(5,9,15,.74);
  -webkit-backdrop-filter:blur(22px) saturate(160%);
  backdrop-filter:blur(22px) saturate(160%);
  border-bottom-color:var(--line);
}
.nav.is-hidden{transform:translateY(-104%)}
.nav-in{display:flex;align-items:center;gap:14px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:15.5px;letter-spacing:-.01em}
.brand img{width:34px;height:34px;border-radius:10px;box-shadow:0 6px 20px rgba(0,91,172,.45);transition:transform .5s var(--ease-back)}
.brand:hover img{transform:rotate(-6deg) scale(1.06)}
.brand span small{
  display:block;font-size:10px;font-weight:500;letter-spacing:.16em;
  color:var(--muted);text-transform:uppercase;line-height:1.25;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links>a{
  position:relative;padding:9px 14px;border-radius:9px;font-size:14px;color:var(--ink-2);
  transition:color .22s,background .22s;
}
.nav-links>a:not(.nav-cta)::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:1.5px;border-radius:2px;
  background:linear-gradient(90deg,var(--b2),var(--b3));
  transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease);
}
.nav-links>a:hover{color:#fff;background:var(--glass)}
.nav-links>a:not(.nav-cta):hover::after,.nav-links>a:not(.nav-cta).active::after{transform:scaleX(1)}
.nav-links>a.active{color:#fff}
.nav-cta{
  position:relative;margin-left:10px;display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:11px;font-size:14px;font-weight:600;overflow:hidden;
  background:linear-gradient(180deg,var(--b2),var(--b1));
  box-shadow:0 10px 26px -10px rgba(46,139,214,.9),inset 0 1px 0 rgba(255,255,255,.3);
  transition:transform .24s var(--ease),box-shadow .24s;
}
.nav-cta::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.38) 48%,transparent 62%);
  transform:translateX(-130%);transition:transform .7s var(--ease);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 16px 34px -10px rgba(46,139,214,1)}
.nav-cta:hover::after{transform:translateX(130%)}
.nav-cta svg{width:15px;height:15px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line-2);
  align-items:center;justify-content:center;margin-left:8px;
}
.nav-toggle span{position:relative;display:block;width:17px;height:1.6px;background:#fff;border-radius:2px;transition:transform .3s var(--ease),opacity .2s}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:1.6px;background:#fff;border-radius:2px;
  transition:transform .3s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{transform:rotate(45deg)}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(-90deg)}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-90deg);opacity:0}

/* ---------- buttons ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 24px;border-radius:13px;font-size:15px;font-weight:600;overflow:hidden;
  transition:transform .26s var(--ease),box-shadow .26s,background .26s,border-color .26s;
}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{
  background:linear-gradient(180deg,var(--b2),var(--b1));color:#fff;
  box-shadow:0 16px 40px -18px rgba(46,139,214,.95),inset 0 1px 0 rgba(255,255,255,.32);
}
.btn-primary::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,transparent 32%,rgba(255,255,255,.34) 48%,transparent 64%);
  transform:translateX(-130%);transition:transform .75s var(--ease);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 52px -18px rgba(46,139,214,1)}
.btn-primary:hover::after{transform:translateX(130%)}
.btn-ghost{
  border:1px solid var(--line-2);background:var(--glass);color:var(--ink);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:var(--glass-2);border-color:var(--line-3);transform:translateY(-2px)}
.btn-sm{padding:10px 16px;font-size:13px;border-radius:10px}
.btn-sm svg{width:15px;height:15px}

/* ---------- hero ---------- */
.hero{padding:calc(var(--nav-h) + 74px) 0 0;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:9px;padding:6px 14px 6px 7px;border-radius:99px;
  border:1px solid var(--line-2);background:var(--glass);font-size:12.5px;color:var(--ink-2);
  margin-bottom:26px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.badge b{
  display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border-radius:99px;
  background:rgba(0,91,172,.2);color:var(--b3);font-size:11.5px;font-weight:600;
  border:1px solid rgba(0,91,172,.36);
}
.pulse{position:relative;width:6px;height:6px;border-radius:50%;background:#43e08b;display:inline-block}
.pulse::after{
  content:"";position:absolute;inset:-4px;border-radius:50%;border:1px solid rgba(67,224,139,.6);
  animation:ring 2.2s ease-out infinite;
}
@keyframes ring{0%{transform:scale(.5);opacity:.9}100%{transform:scale(1.5);opacity:0}}

.hero-title{
  font-size:clamp(40px,6.2vw,76px);line-height:1.04;letter-spacing:-.04em;font-weight:750;
  margin-bottom:24px;
}
.hero-title .ln{display:block;overflow:hidden;padding-bottom:.06em}
.hero-title .ln>span{
  display:block;transform:translateY(112%);
  animation:lnUp 1s var(--ease) forwards;
  animation-delay:calc(var(--i,0) * 120ms + 80ms);
}
@keyframes lnUp{to{transform:translateY(0)}}
.hero-title i{font-style:normal;color:var(--b2);font-weight:600;font-size:.62em;letter-spacing:0}
.hero .lead{
  font-size:clamp(15.5px,1.45vw,18px);color:var(--ink-2);max-width:530px;line-height:1.86;
  text-wrap:pretty;
}
.hero .lead b{color:#fff;font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.hero-meta span{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--muted);
  padding:4px 10px 4px 8px;border-radius:99px;border:1px solid var(--line);
  background:rgba(255,255,255,.028);
}
.hero-meta i{width:5px;height:5px;border-radius:50%;background:var(--b2);box-shadow:0 0 8px var(--b2)}

/* stage */
.stage{position:relative;display:flex;justify-content:center;align-items:center;min-height:620px;touch-action:pan-y}
.stage-glow{
  position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,91,172,.44),rgba(0,91,172,0) 66%);
  filter:blur(34px);animation:breathe 9s ease-in-out infinite;
}
@keyframes breathe{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.1);opacity:1}}
.orbit{
  position:absolute;border-radius:50%;border:1px solid rgba(120,170,255,.13);
  pointer-events:none;
}
.orbit.o1{width:470px;height:470px;animation:spin 34s linear infinite}
.orbit.o2{width:560px;height:560px;border-style:dashed;border-color:rgba(120,170,255,.09);animation:spin 52s linear infinite reverse}
.orbit::after{
  content:"";position:absolute;top:-3px;left:50%;width:5px;height:5px;border-radius:50%;
  background:var(--b3);box-shadow:0 0 14px var(--b2);
}
@keyframes spin{to{transform:rotate(360deg)}}

.phone{
  position:relative;width:302px;border-radius:46px;padding:9px;
  background:linear-gradient(160deg,#2b3444,#0d1420 40%,#1b2432);
  box-shadow:var(--shadow),0 0 0 1px rgba(255,255,255,.14),0 0 64px -12px rgba(0,91,172,.55);
  transform:perspective(1600px) rotateY(-13deg) rotateX(4deg) rotateZ(1.2deg);
  transition:transform .85s var(--ease),box-shadow .6s;
  will-change:transform;
}
/* 3D 环绕：由脚本写入 --hx / --hy / --pz / --gx / --gy */
.stage .phone{
  transform:
    perspective(1500px)
    translate3d(0,0,var(--pz,0px))
    rotateY(calc(-13deg + var(--hx,0deg)))
    rotateX(calc(4deg + var(--hy,0deg)))
    rotateZ(1.2deg);
  transition:box-shadow .5s;
}
.stage.is-orbit .phone{
  box-shadow:var(--shadow),0 0 0 1px rgba(255,255,255,.16),0 30px 80px -26px rgba(0,0,0,.96),0 0 74px -8px rgba(0,91,172,.62);
}
.stage .phone::after{
  content:"";position:absolute;inset:0;border-radius:46px;z-index:5;pointer-events:none;
  background:radial-gradient(240px 300px at var(--gx,50%) var(--gy,0%),rgba(198,226,255,.17),rgba(198,226,255,0) 68%);
  opacity:0;transition:opacity .45s;
}
.stage.is-orbit .phone::after{opacity:1}
.screen{
  position:relative;border-radius:38px;overflow:hidden;background:#070c14;
  height:592px;display:flex;flex-direction:column;
}
.screen::after{
  content:"";position:absolute;inset:0;border-radius:38px;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.07),inset 0 22px 44px -22px rgba(120,170,255,.28);
}
.screen::before{
  content:"";position:absolute;top:-40%;left:-60%;width:70%;height:180%;z-index:3;pointer-events:none;
  background:linear-gradient(100deg,transparent,rgba(190,220,255,.16),transparent);
  transform:rotate(14deg);animation:gloss 7s ease-in-out infinite;
}
@keyframes gloss{0%,62%{left:-70%}88%,100%{left:130%}}
.shot{width:100%;height:100%;object-fit:cover;object-position:top center;display:block}

.float{
  position:absolute;z-index:6;display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:15px;border:1px solid rgba(255,255,255,.14);
  background:rgba(12,20,32,.74);
  -webkit-backdrop-filter:blur(18px) saturate(170%);backdrop-filter:blur(18px) saturate(170%);
  box-shadow:0 20px 44px -22px rgba(0,0,0,.95);
  font-size:11.5px;color:#cfe2ff;animation:bob 7s ease-in-out infinite;
}
.float b{display:block;font-size:13px;color:#fff;font-weight:650;line-height:1.3}
.float small{display:block;font-size:9.5px;color:#8ea4c0;letter-spacing:.02em;white-space:nowrap}
.float .ico{
  width:30px;height:30px;border-radius:10px;display:grid;place-items:center;flex:none;
  background:rgba(0,91,172,.18);border:1px solid rgba(0,91,172,.34);color:var(--b3);
}
.float.f1{top:8%;left:-7%;animation-delay:-1.4s}
.float.f2{bottom:18%;right:-9%;animation-delay:-3.2s}
.float.f3{bottom:1%;left:-3%;animation-delay:-5s}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* ---------- stats ---------- */
.stats{padding:66px 0 0}
.stats-in{
  display:grid;grid-template-columns:repeat(5,1fr);
  border:1px solid var(--line);border-radius:20px;overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.012));
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  position:relative;
}
.stats-in::before{
  content:"";position:absolute;top:0;left:8%;right:8%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(157,195,240,.5),transparent);
}
.stat{position:relative;padding:28px 18px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{
  display:block;font-size:clamp(22px,2.5vw,31px);font-weight:750;letter-spacing:-.035em;
  background:linear-gradient(180deg,#fff,var(--b3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat span{display:block;font-size:11.5px;color:var(--muted);margin-top:6px;letter-spacing:.05em}

/* ---------- marquee ---------- */
.marquee{
  margin-top:72px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  overflow:hidden;position:relative;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
}
.mq-track{display:flex;width:max-content;animation:mq 38s linear infinite}
.marquee:hover .mq-track{animation-play-state:paused}
@keyframes mq{to{transform:translateX(-50%)}}
.mq-track span{
  display:inline-flex;align-items:center;gap:16px;padding:0 22px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:#6f84a0;white-space:nowrap;
}
.mq-track span::after{content:"";width:4px;height:4px;border-radius:50%;background:var(--b1);box-shadow:0 0 8px var(--b2)}
.mq-track b{color:var(--ink-2);font-weight:600}

/* ---------- cards / bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.card{
  position:relative;overflow:hidden;padding:26px;border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(255,255,255,.058),rgba(255,255,255,.014));
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:border-color .4s,box-shadow .4s,background .4s,transform .22s var(--ease-soft);
  transform-style:preserve-3d;
}
.card[data-tilt]{
  transform:perspective(1000px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:0;
  background:radial-gradient(380px 220px at var(--mx,50%) var(--my,0%),rgba(46,139,214,.16),transparent 68%);
  opacity:0;transition:opacity .45s;
}
.card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:0;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
}
.card>*{position:relative;z-index:1}
.card:hover{border-color:var(--line-3);box-shadow:var(--glow);background:linear-gradient(165deg,rgba(255,255,255,.075),rgba(255,255,255,.02))}
.card:hover::before{opacity:1}
.card .ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;
  background:linear-gradient(150deg,rgba(0,91,172,.26),rgba(46,139,214,.1));
  border:1px solid rgba(120,170,255,.26);color:var(--b3);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
  transition:transform .45s var(--ease-back),box-shadow .4s;
}
.card:hover .ico{transform:translateY(-3px) scale(1.05) rotate(-3deg);box-shadow:inset 0 1px 0 rgba(255,255,255,.2),0 12px 26px -14px rgba(46,139,214,.9)}
.card .ico svg{width:21px;height:21px}
.card h3{font-size:17.5px;margin-bottom:9px;letter-spacing:-.012em}
.card p{font-size:13.5px;color:var(--muted);line-height:1.78}
.card .tag{
  position:absolute;top:22px;right:22px;font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--b3);padding:3px 9px;border:1px solid rgba(0,91,172,.32);border-radius:99px;
  background:rgba(0,91,172,.12);
}
.card .tag.warn{color:#cfe4ff;border-color:rgba(46,139,214,.4);background:rgba(157,195,240,.14)}
.card .klist{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.card .klist span{
  font-size:10.5px;color:#a9bdd8;padding:4px 9px;border-radius:7px;
  background:rgba(255,255,255,.055);border:1px solid var(--line);
}
.c7{grid-column:span 7}.c6{grid-column:span 6}.c5{grid-column:span 5}
.c4{grid-column:span 4}.c3{grid-column:span 3}

/* mini timetable */
.mini{
  margin-top:20px;display:grid;grid-template-columns:22px repeat(5,1fr);gap:4px;
  font-size:7.5px;color:#7f93ad;
}
.mini .h{text-align:center;padding-bottom:2px}
.mini .r{display:flex;align-items:center;justify-content:center;font-size:7px;color:var(--dim)}
.slot{height:26px;border-radius:6px;background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.04);transition:transform .3s}
.card:hover .slot.b1,.card:hover .slot.b2,.card:hover .slot.b3,.card:hover .slot.b4{animation:slotPop .6s var(--ease-back)}
@keyframes slotPop{50%{transform:scale(.93)}}
.slot.b1{background:linear-gradient(150deg,rgba(0,91,172,.45),rgba(0,91,172,.16));border-color:rgba(0,91,172,.38)}
.slot.b2{background:linear-gradient(150deg,rgba(46,139,214,.4),rgba(46,139,214,.14));border-color:rgba(46,139,214,.34)}
.slot.b3{background:linear-gradient(150deg,rgba(74,159,224,.4),rgba(74,159,224,.14));border-color:rgba(74,159,224,.34)}
.slot.b4{background:linear-gradient(150deg,rgba(157,195,240,.36),rgba(157,195,240,.12));border-color:rgba(157,195,240,.32)}

/* score bars */
.bars{display:flex;align-items:flex-end;gap:9px;height:92px;margin-top:22px}
.bars div{
  flex:1;border-radius:6px 6px 3px 3px;position:relative;
  background:linear-gradient(180deg,var(--b2),rgba(0,91,172,.18));
  transform:scaleY(.2);transform-origin:bottom;
  transition:transform .9s var(--ease);
}
.js .card.in .bars div{transform:scaleY(1)}
.bars div:nth-child(2){background:linear-gradient(180deg,var(--b3),rgba(46,139,214,.16));transition-delay:.08s}
.bars div:nth-child(3){background:linear-gradient(180deg,var(--b4),rgba(74,159,224,.16));transition-delay:.16s}
.bars div:nth-child(4){background:linear-gradient(180deg,#7db8ea,rgba(0,91,172,.16));transition-delay:.24s}
.bars div span{position:absolute;bottom:-19px;left:0;right:0;text-align:center;font-size:8.5px;color:#7d92ae}

/* ---------- demo（交互预览） ---------- */
.demo{
  display:grid;grid-template-columns:1.06fr .94fr;gap:20px;align-items:stretch;
  padding:26px;border-radius:var(--radius-lg);border:1px solid var(--line-2);
  background:
    radial-gradient(90% 120% at 8% 0%,rgba(0,91,172,.24),transparent 58%),
    linear-gradient(150deg,rgba(14,24,40,.95),rgba(6,11,19,.97));
  box-shadow:0 46px 100px -60px rgba(20,80,200,.95);
  position:relative;overflow:hidden;
}
.demo::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:24px 24px;opacity:.24;
  -webkit-mask-image:radial-gradient(ellipse at 0% 0%,#000,transparent 62%);
  mask-image:radial-gradient(ellipse at 0% 0%,#000,transparent 62%);
}
.demo-stage{
  position:relative;z-index:2;display:grid;place-items:center;min-height:520px;
  border-radius:20px;border:1px solid rgba(255,255,255,.06);
  background:radial-gradient(70% 70% at 50% 42%,rgba(0,91,172,.22),transparent 70%);
  padding:26px;touch-action:pan-y;
  overflow:hidden;
}
.dev{display:none;justify-content:center;width:100%}
.dev.is-on{display:flex;animation:devIn .5s var(--ease)}
@keyframes devIn{from{opacity:0;translate:0 14px}to{opacity:1;translate:0 0}}
.dev-body{
  position:relative;background:linear-gradient(160deg,#2b3444,#0d1420 42%,#1b2432);overflow:hidden;
  box-shadow:0 34px 80px -32px rgba(0,0,0,.95),0 0 0 1px rgba(255,255,255,.13),0 0 60px -16px rgba(0,91,172,.5);
}
.dev-body img{width:100%;height:auto;display:block;transition:opacity .3s ease}
.dev-phone{flex-direction:column;align-items:center;gap:17px}
.dev-phone .dev-body{width:252px;padding:8px;border-radius:40px;cursor:grab}
.dev-tablet .dev-body{cursor:grab}
.demo-stage.is-drag .dev-body{cursor:grabbing}
.demo-stage.is-drag .dev-body img{transition:none}
.dev-body{transition:transform .38s var(--ease)}
.dev-phone .dev-body img{border-radius:33px;aspect-ratio:912/1920;object-fit:cover}
.dev-tablet .dev-body{width:100%;max-width:520px;padding:9px;border-radius:17px}
.dev-tablet .dev-body img{border-radius:9px;aspect-ratio:1920/1280;object-fit:cover}

.demo-side{position:relative;z-index:2;display:flex;flex-direction:column;padding:10px 6px}
.demo-tabs{
  display:inline-flex;align-self:flex-start;gap:4px;padding:4px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);margin-bottom:24px;
}
.demo-tabs button{
  padding:8px 16px;border-radius:9px;font-size:12.5px;color:var(--muted);font-weight:600;
  transition:color .25s,background .25s,box-shadow .25s;
}
.demo-tabs button.is-on{
  color:#fff;background:linear-gradient(180deg,rgba(46,139,214,.9),rgba(0,91,172,.9));
  box-shadow:0 8px 20px -10px rgba(46,139,214,.9),inset 0 1px 0 rgba(255,255,255,.25);
}
.demo-cap{display:flex;gap:14px;align-items:flex-start;min-height:96px;margin-bottom:20px}
.demo-cap .num{
  flex:none;font-family:var(--mono);font-size:12px;font-weight:700;line-height:1;color:var(--b3);
  padding:7px 9px;border-radius:9px;background:rgba(0,91,172,.14);border:1px solid rgba(0,91,172,.26);
}
.demo-cap h3{font-size:19px;margin-bottom:7px;letter-spacing:-.015em}
.demo-cap p{font-size:13px;color:var(--muted);line-height:1.75}
.demo-list{display:none;flex-direction:column;gap:2px}
.demo-list.is-on{display:flex}
.demo-list button{
  display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;
  font-size:13px;color:var(--muted);text-align:left;width:100%;
  border:1px solid transparent;transition:color .22s,background .22s,border-color .22s;
}
.demo-list button span{
  flex:none;font-family:var(--mono);font-size:10.5px;color:var(--dim);width:18px;
  transition:color .22s;
}
.demo-list button:hover{color:var(--ink);background:rgba(255,255,255,.045)}
.demo-list button.is-on{
  color:#fff;background:rgba(0,91,172,.16);border-color:rgba(46,139,214,.34);
}
.demo-list button.is-on span{color:var(--b3)}
.demo-hint{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;gap:8px;
  font-size:11.5px;color:var(--dim);
}
.demo-hint svg{width:13px;height:13px;flex:none}

/* ---------- 交互预览 · 模拟底栏 / 滑动 / 自动巡览 ---------- */
.demo-top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.demo-top .demo-tabs{margin-bottom:0}
.demo-auto{
  display:inline-flex;align-items:center;gap:7px;padding:8px 13px;border-radius:11px;
  font-size:11.5px;font-weight:600;color:var(--muted);
  border:1px solid var(--line);background:rgba(255,255,255,.035);
  transition:color .25s,background .25s,border-color .25s;
}
.demo-auto svg{width:12px;height:12px}
.demo-auto:hover{color:var(--ink);border-color:var(--line-3);background:rgba(255,255,255,.06)}
.demo-auto.is-on{color:#dcecff;border-color:rgba(46,139,214,.5);background:rgba(0,91,172,.24)}
.demo-auto.is-on svg{color:var(--b3)}

.phone-dock{
  display:flex;align-items:center;justify-content:space-between;
  width:270px;padding:6px 8px;border-radius:18px;
  background:rgba(255,255,255,.055);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  box-shadow:0 16px 34px -22px rgba(0,0,0,.9);
}
.dock-item{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:6px 2px 5px;border-radius:11px;color:var(--dim);
  font-size:9.5px;letter-spacing:.01em;
  transition:color .25s,background .3s,transform .3s var(--ease-back);
}
.dock-item svg{width:15px;height:15px;transition:transform .35s var(--ease-back)}
.dock-item:hover{color:var(--ink-2);background:rgba(255,255,255,.05)}
.dock-item:active{transform:scale(.94)}
.dock-item.is-on{color:#eaf4ff;background:linear-gradient(180deg,rgba(46,139,214,.32),rgba(0,91,172,.26))}
.dock-item.is-on svg{transform:translateY(-1px) scale(1.06);color:#cfe6ff}
.dock-item.is-on::after{
  content:"";position:absolute;bottom:-1px;left:50%;width:12px;height:2px;border-radius:2px;
  background:var(--b3);transform:translateX(-50%);box-shadow:0 0 8px rgba(157,195,240,.9);
}
.demo-stage.is-drag .phone-dock{opacity:.55}

.stage-nav{
  position:absolute;top:50%;translate:0 -50%;z-index:4;
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  color:#dbe9ff;border:1px solid rgba(255,255,255,.16);
  background:rgba(8,14,24,.72);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  opacity:.55;transition:opacity .25s,background .25s,transform .25s,border-color .25s;
}
.stage-nav svg{width:16px;height:16px}
.stage-nav:hover{opacity:1;background:rgba(0,91,172,.62);border-color:rgba(157,195,240,.5);transform:scale(1.08)}
.stage-nav.prev{left:10px}
.stage-nav.next{right:10px}

.stage-dots{display:flex;align-items:center;gap:6px;margin:0 0 16px}
.stage-dots button{
  width:18px;height:4px;border-radius:99px;background:rgba(255,255,255,.18);
  transition:width .35s var(--ease),background .35s,box-shadow .35s;
}
.stage-dots button:hover{background:rgba(255,255,255,.34)}
.stage-dots button.is-on{
  width:30px;background:linear-gradient(90deg,var(--b2),var(--b3));
  box-shadow:0 0 12px rgba(46,139,214,.75);
}

.swipe-tip{
  position:absolute;top:12px;left:50%;z-index:3;translate:-50% 0;
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:99px;
  font-size:10.5px;color:#c9dcf5;background:rgba(8,14,24,.66);
  border:1px solid rgba(157,195,240,.22);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  animation:tipPulse 2.6s ease-in-out infinite;pointer-events:none;
  transition:opacity .45s,translate .45s;
}
.swipe-tip svg{width:12px;height:12px;animation:tipSlide 2.6s ease-in-out infinite}
@keyframes tipPulse{0%,100%{opacity:.5}50%{opacity:.92}}
@keyframes tipSlide{0%,100%{transform:translateX(-2px)}50%{transform:translateX(2px)}}
.demo.has-used .swipe-tip{opacity:0;translate:-50% -8px}

/* 换屏动画 */
@keyframes shotInR{from{opacity:0;transform:translateX(38px) scale(.985)}to{opacity:1;transform:none}}
@keyframes shotInL{from{opacity:0;transform:translateX(-38px) scale(.985)}to{opacity:1;transform:none}}
.dev-body img.shot-in-r{animation:shotInR .48s var(--ease)}
.dev-body img.shot-in-l{animation:shotInL .48s var(--ease)}

/* 点击涟漪 */
.tap-ripple{
  position:absolute;left:0;top:0;width:12px;height:12px;margin:-6px 0 0 -6px;border-radius:50%;
  border:1.5px solid rgba(157,195,240,.85);background:rgba(46,139,214,.22);
  pointer-events:none;z-index:3;animation:tapRip .68s cubic-bezier(.2,.7,.3,1) forwards;
}
@keyframes tapRip{
  to{width:180px;height:180px;margin:-90px 0 0 -90px;opacity:0;border-color:rgba(157,195,240,0)}
}

/* 平板卡片放大提示 */
.tab-win::before{
  content:"";position:absolute;right:18px;top:18px;width:30px;height:30px;border-radius:50%;
  background:rgba(6,12,20,.72) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23dbe9ff' stroke-width='2' stroke-linecap='round'><circle cx='11' cy='11' r='7'/><path d='m20 20-3.6-3.6M11 8v6M8 11h6'/></svg>") center/15px no-repeat;
  border:1px solid rgba(255,255,255,.18);opacity:0;transform:scale(.8);
  transition:opacity .3s,transform .35s var(--ease-back);z-index:3;pointer-events:none;
}
.tab-card:hover .tab-win::before{opacity:1;transform:scale(1)}

/* 灯箱拖拽 */
.lb figure{dursor:grab;touch-action:pan-y}
.lb.is-drag figure{cursor:grabbing}
.lb img{transition:transform .3s var(--ease),opacity .2s}
.lb.is-drag img{transition:none}
.lb-hint{
  position:absolute;bottom:22px;left:50%;transform:translateX(-50%);
  font-size:11.5px;color:var(--dim);letter-spacing:.02em;
  display:flex;align-items:center;gap:7px;
}
.lb-hint svg{width:13px;height:13px}

/* 页面离场 */
body.is-leaving{animation:none;opacity:0;transition:opacity .2s ease}

/* ---------- duo（双端） ---------- */
.duo{
  display:grid;grid-template-columns:1.32fr 1fr;gap:42px;align-items:center;
  padding:42px;border-radius:var(--radius-lg);border:1px solid var(--line-2);
  background:
    radial-gradient(90% 120% at 10% 0%,rgba(0,91,172,.26),transparent 60%),
    linear-gradient(150deg,rgba(16,28,46,.94),rgba(7,12,20,.97));
  box-shadow:0 46px 100px -58px rgba(20,80,200,.95);
  position:relative;overflow:hidden;
}
.duo::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:24px 24px;opacity:.26;
  -webkit-mask-image:radial-gradient(ellipse at 0% 0%,#000,transparent 60%);
  mask-image:radial-gradient(ellipse at 0% 0%,#000,transparent 60%);
}
.duo-devices{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1.62fr;gap:22px;align-items:center}
.duo-devices .phone{transform:none;width:100%;max-width:206px;padding:7px;border-radius:34px;margin:0 auto}
.duo-devices .phone:hover{transform:translateY(-7px)}
.duo-devices .screen{height:auto;aspect-ratio:912/1920;border-radius:27px}
.duo-devices .screen::before{display:none}
.duo-win{
  position:relative;border-radius:15px;padding:8px;
  background:linear-gradient(160deg,#243350,#0b1420 60%,#1a2436);
  box-shadow:0 26px 60px -28px rgba(0,0,0,.92),0 0 0 1px rgba(255,255,255,.12),0 0 46px -14px rgba(0,91,172,.5);
  transition:transform .55s var(--ease),box-shadow .55s;
}
.duo-win:hover{transform:translateY(-7px) rotate(-.4deg);box-shadow:0 34px 74px -28px rgba(0,0,0,.95),0 0 0 1px rgba(157,195,240,.34),0 30px 60px -18px rgba(0,91,172,.62)}
.duo-win img{width:100%;height:auto;border-radius:9px;display:block}
.duo-win::after{content:"";position:absolute;inset:8px;border-radius:9px;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.duo-copy{position:relative;z-index:2}
.duo-copy h2{font-size:clamp(24px,2.9vw,36px);margin:2px 0 14px;letter-spacing:-.03em}
.duo-copy>p{color:var(--muted);font-size:14px;line-height:1.82;max-width:400px;text-wrap:pretty}
.duo-points{display:grid;gap:12px;margin-top:24px}
.duo-points div{display:flex;gap:11px;align-items:flex-start;font-size:13px;color:var(--ink-2);line-height:1.62}
.duo-points i{
  flex:none;width:23px;height:23px;border-radius:7px;display:grid;place-items:center;font-style:normal;
  font-size:10px;font-family:var(--mono);color:var(--b3);background:rgba(0,91,172,.16);
  border:1px solid rgba(0,91,172,.32);margin-top:1px;
}
.duo-points b{color:#eaf2ff;font-weight:600}

/* ---------- page head / subnav ---------- */
.page-head{padding:calc(var(--nav-h) + 82px) 0 0}
.page-head h1{font-size:clamp(34px,4.6vw,58px);letter-spacing:-.035em;margin-bottom:18px;line-height:1.1}
.page-head p{color:var(--muted);font-size:16px;max-width:640px;text-wrap:pretty}
.subnav-bar{
  position:sticky;top:calc(var(--nav-h) + 4px);z-index:45;
  padding:12px 0 8px;pointer-events:none;
}
.subnav{
  position:relative;pointer-events:auto;
  display:inline-flex;gap:3px;padding:5px;border-radius:13px;
  background:rgba(10,17,27,.82);border:1px solid var(--line-2);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  box-shadow:0 18px 40px -26px #000;
  max-width:100%;overflow-x:auto;scrollbar-width:none;
}
.subnav::-webkit-scrollbar{display:none}
.subnav a{
  padding:8px 14px;border-radius:9px;font-size:12.5px;color:var(--muted);white-space:nowrap;
  transition:color .22s,background .22s;
}
.subnav a:hover{color:#fff;background:rgba(255,255,255,.05)}
.subnav a.active{color:#fff;background:rgba(0,91,172,.26);box-shadow:inset 0 0 0 1px rgba(46,139,214,.3)}

/* ---------- filters ---------- */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:-14px 0 30px}
.filters button{
  padding:8px 15px;border-radius:99px;font-size:12.5px;color:var(--muted);
  border:1px solid var(--line);background:rgba(255,255,255,.028);
  transition:color .22s,background .22s,border-color .22s,transform .22s;
}
.filters button:hover{color:var(--ink);border-color:var(--line-3);transform:translateY(-1px)}
.filters button.is-on{
  color:#fff;background:rgba(0,91,172,.28);border-color:rgba(46,139,214,.45);
}
.card.is-hidden{display:none}
.bento.is-filtered{grid-template-columns:repeat(3,1fr)}
.bento.is-filtered .card{grid-column:auto}
.card.pop{animation:cardPop .45s var(--ease)}
@keyframes cardPop{from{opacity:0;translate:0 10px}to{opacity:1;translate:0 0}}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:46px 30px}
.shot-card{display:flex;flex-direction:column;align-items:center;gap:16px;margin:0}
.shot-card .phone{
  width:100%;max-width:286px;transform:none;margin:0;display:block;
  transition:transform .55s var(--ease),box-shadow .55s;
  cursor:zoom-in;
}
.shot-card .phone:hover{transform:translateY(-9px);box-shadow:var(--shadow),0 0 0 1px rgba(255,255,255,.22),0 30px 74px -28px rgba(0,91,172,.65)}
.shot-card .screen{height:auto;aspect-ratio:912/1920}
.shot-card .screen::before{display:none}
.shot-card figcaption{display:flex;gap:13px;align-items:flex-start;width:100%;max-width:286px}
.no{
  flex:none;font-family:var(--mono);font-size:12px;font-weight:700;line-height:1;color:var(--b3);
  padding:6px 8px;border-radius:9px;background:rgba(0,91,172,.12);border:1px solid rgba(0,91,172,.22);
}
.shot-card h4{font-size:15px;margin-bottom:5px;color:#eaf2ff}
.shot-card figcaption p{font-size:12.5px;color:var(--muted);line-height:1.62}

/* tablet grid */
.tab-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:42px 30px}
.tab-card{margin:0;display:flex;flex-direction:column;gap:15px}
.tab-win{
  position:relative;border-radius:17px;padding:9px;overflow:hidden;display:block;width:100%;
  background:linear-gradient(160deg,#243350,#0b1420 58%,#1a2436);
  box-shadow:0 30px 70px -34px rgba(0,0,0,.92),0 0 0 1px rgba(255,255,255,.12),0 0 46px -14px rgba(0,91,172,.45);
  transition:transform .55s var(--ease),box-shadow .55s;cursor:zoom-in;
}
.tab-card:hover .tab-win{transform:translateY(-9px);box-shadow:0 40px 88px -34px rgba(0,0,0,.95),0 0 0 1px rgba(157,195,240,.34),0 30px 64px -18px rgba(0,91,172,.62)}
.tab-win img{width:100%;height:auto;border-radius:10px;display:block}
.tab-win::after{content:"";position:absolute;inset:9px;border-radius:10px;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.07)}
.tab-card h4{font-size:15.5px;margin-bottom:5px;color:#eaf2ff}
.tab-card figcaption{display:flex;gap:13px;align-items:flex-start}
.tab-card figcaption p{font-size:12.5px;color:var(--muted);line-height:1.66}

/* specs */
.specs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:40px}
.spec{
  padding:18px 20px;border-radius:14px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);transition:border-color .3s,background .3s,transform .3s;
}
.spec:hover{border-color:var(--line-3);background:rgba(255,255,255,.055);transform:translateY(-2px)}
.spec span{display:block;font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--dim);margin-bottom:6px}
.spec b{font-size:13.5px;color:#eaf2ff;font-weight:650;font-family:var(--mono);letter-spacing:-.01em}
.tab-note{
  display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-size:12px;color:var(--muted);
  padding:8px 14px;border-radius:99px;border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.tab-note i{width:6px;height:6px;border-radius:50%;background:var(--b2);box-shadow:0 0 8px var(--b2)}

/* ---------- lightbox ---------- */
.lb{
  position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;
  padding:40px 24px;background:rgba(3,6,11,.92);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
}
.lb.is-open{display:flex;animation:lbIn .28s var(--ease)}
@keyframes lbIn{from{opacity:0}to{opacity:1}}
.lb figure{margin:0;display:flex;flex-direction:column;align-items:center;gap:14px;max-height:100%}
.lb img{
  max-height:calc(100vh - 150px);width:auto;max-width:100%;border-radius:16px;
  box-shadow:0 50px 120px -40px #000,0 0 0 1px rgba(255,255,255,.14);
  animation:lbImg .38s var(--ease);
}
@keyframes lbImg{from{opacity:0;scale:.96}to{opacity:1;scale:1}}
.lb figcaption{font-size:12.5px;color:var(--ink-2);display:flex;gap:12px;align-items:center;flex-wrap:wrap;justify-content:center}
.lb figcaption span{font-family:var(--mono);color:var(--dim);font-size:11.5px}
.lb button{
  position:absolute;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-2);background:rgba(14,22,34,.8);color:#fff;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:background .22s,transform .22s,border-color .22s;
}
.lb button:hover{background:rgba(0,91,172,.5);border-color:rgba(157,195,240,.5);transform:scale(1.06)}
.lb button svg{width:20px;height:20px}
.lb .lb-close{top:24px;right:24px}
.lb .lb-prev{left:24px;top:50%;margin-top:-23px}
.lb .lb-next{right:24px;top:50%;margin-top:-23px}
.lb .lb-count{position:absolute;top:28px;left:28px;font-family:var(--mono);font-size:12px;color:var(--muted)}

/* ---------- details ---------- */
.detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.detail{
  display:flex;gap:20px;padding:28px;border-radius:20px;border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(255,255,255,.05),rgba(255,255,255,.012));
  transition:border-color .35s,background .35s,transform .35s;
}
.detail:hover{border-color:var(--line-3);background:linear-gradient(150deg,rgba(255,255,255,.07),rgba(255,255,255,.02));transform:translateY(-3px)}
.detail .n{font-family:var(--mono);font-size:11px;color:var(--b3);letter-spacing:.08em;padding-top:4px;flex:none;width:26px}
.detail h4{font-size:16px;margin-bottom:7px}
.detail p{font-size:13px;color:var(--muted);line-height:1.78}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line)}
summary{
  cursor:pointer;list-style:none;padding:23px 4px;display:flex;align-items:center;gap:16px;
  font-size:15.5px;font-weight:550;color:#cfe2ff;transition:color .22s,padding .3s;
}
summary::-webkit-details-marker{display:none}
summary:hover{color:#fff;padding-left:10px}
summary .plus{
  margin-left:auto;width:24px;height:24px;flex:none;border-radius:50%;position:relative;
  border:1px solid var(--line-2);transition:transform .4s var(--ease),border-color .3s,background .3s;
}
summary .plus::before,summary .plus::after{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  background:var(--b3);border-radius:2px;transition:opacity .3s,background .3s;
}
summary .plus::before{width:9px;height:1.4px}
summary .plus::after{width:1.4px;height:9px}
details[open] summary .plus{transform:rotate(135deg);border-color:rgba(120,170,255,.5);background:rgba(0,91,172,.18)}
details p{padding:0 4px 26px;font-size:13.5px;color:var(--muted);line-height:1.88;max-width:840px}

/* ---------- open source ---------- */
.oss-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--line-2);
  background:linear-gradient(150deg,rgba(18,30,48,.94),rgba(8,13,21,.94));
  display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:44px;
}
.oss-card::before{
  content:"";position:absolute;width:540px;height:540px;right:-170px;top:-230px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,91,172,.3),transparent 66%);filter:blur(20px);
}
.oss-card h2{font-size:clamp(24px,2.7vw,34px);margin-bottom:14px;letter-spacing:-.03em}
.oss-card p{color:var(--muted);font-size:14px;line-height:1.82;text-wrap:pretty}
.oss-stats{display:flex;gap:30px;margin:26px 0 26px;flex-wrap:wrap}
.oss-stats div b{display:block;font-size:23px;font-weight:750;letter-spacing:-.035em;color:#fff}
.oss-stats div span{font-size:11px;color:var(--muted);letter-spacing:.05em}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:28px}
.chips span{
  font-size:11px;color:#b7c9e2;padding:5px 11px;border-radius:8px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:color .22s,border-color .22s,background .22s;
}
.chips span:hover{color:#fff;border-color:var(--line-3);background:rgba(0,91,172,.16)}

.terminal{
  position:relative;border-radius:16px;border:1px solid rgba(255,255,255,.12);
  background:rgba(3,7,12,.88);overflow:hidden;box-shadow:0 26px 60px -30px #000;align-self:start;
}
.term-bar{display:flex;align-items:center;gap:6px;padding:11px 13px;border-bottom:1px solid rgba(255,255,255,.07);background:rgba(255,255,255,.025)}
.term-bar i{width:9px;height:9px;border-radius:50%;background:#ff5f57}
.term-bar i:nth-child(2){background:#febc2e}
.term-bar i:nth-child(3){background:#28c840}
.term-bar span{margin-left:8px;font-size:10.5px;color:#6b7f99;font-family:var(--mono)}
.term-body{padding:20px;font-family:var(--mono);font-size:11.5px;line-height:2.05;color:#b7c9e2;white-space:pre-wrap;overflow-wrap:anywhere}
.term-body .ln{display:block;opacity:0;transform:translateY(6px)}
.terminal.in .term-body .ln{animation:lnFade .45s var(--ease) forwards;animation-delay:calc(var(--i,0) * 110ms + 200ms)}
@keyframes lnFade{to{opacity:1;transform:none}}
.term-body .c{color:#5f7189}
.term-body .g{color:#5fe0a8}
.term-body .b{color:var(--b3)}
.copy{
  position:absolute;top:9px;right:10px;font-size:10px;color:#8ea4c0;
  padding:4px 9px;border-radius:6px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.05);
  transition:color .2s,background .2s;
}
.copy:hover{color:#fff;background:rgba(255,255,255,.11)}

/* tech grid */
.tech{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.tech div{
  display:flex;gap:14px;align-items:center;padding:18px 20px;border-radius:14px;
  border:1px solid var(--line);background:rgba(255,255,255,.028);
  transition:border-color .3s,background .3s,transform .3s;
}
.tech div:hover{border-color:var(--line-3);background:rgba(255,255,255,.055);transform:translateY(-2px)}
.tech .k{
  flex:none;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-family:var(--mono);font-size:12px;font-weight:700;color:var(--b3);
  background:rgba(0,91,172,.16);border:1px solid rgba(0,91,172,.3);
}
.tech b{display:block;font-size:13.5px;color:#eaf2ff;font-weight:650;line-height:1.3}
.tech small{display:block;font-size:11px;color:var(--dim);margin-top:2px}

/* flow */
.flow{
  margin-top:20px;border-radius:20px;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.04),rgba(255,255,255,.008));
  padding:34px 26px;overflow-x:auto;scrollbar-width:thin;
}
.flow svg{width:100%;height:auto;display:block}
.flow .dash{stroke-dasharray:5 7;animation:dashMove 1.6s linear infinite}
@keyframes dashMove{to{stroke-dashoffset:-24}}

/* timeline */
.timeline{position:relative;padding-left:30px;--p:0}
.timeline::before{
  content:"";position:absolute;left:5px;top:8px;width:1px;
  height:calc((100% - 20px) * var(--p));
  background:linear-gradient(180deg,rgba(46,139,214,.9),rgba(157,195,240,.25));
  box-shadow:0 0 12px rgba(46,139,214,.6);
  transition:height .12s linear;
}
.timeline::after{
  content:"";position:absolute;left:4px;top:8px;bottom:8px;width:1px;
  background:rgba(255,255,255,.075);z-index:-1;
}
.tl-item{position:relative;padding:0 0 36px 0}
.tl-item::before{
  content:"";position:absolute;left:-29px;top:8px;width:9px;height:9px;border-radius:50%;
  background:#0a1119;border:1.5px solid rgba(120,170,255,.5);
  transition:background .3s,box-shadow .3s,border-color .3s;
}
.tl-item:hover::before{border-color:var(--b3);box-shadow:0 0 0 4px rgba(0,91,172,.2)}
.tl-item.new::before{
  background:var(--b2);border-color:var(--b3);
  box-shadow:0 0 0 4px rgba(0,91,172,.18),0 0 18px rgba(74,148,255,.95);
  animation:dotPulse 2.6s ease-in-out infinite;
}
@keyframes dotPulse{50%{box-shadow:0 0 0 7px rgba(0,91,172,.08),0 0 22px rgba(74,148,255,1)}}
.tl-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:9px}
.tl-head b{font-size:16px;letter-spacing:-.01em}
.tl-head time{font-size:11.5px;color:var(--muted);font-family:var(--mono)}
.tl-head .pill{
  font-size:9.5px;padding:2px 9px;border-radius:99px;background:rgba(0,91,172,.18);
  border:1px solid rgba(0,91,172,.34);color:var(--b3);letter-spacing:.07em;
}
.tl-item li{position:relative;padding-left:15px;font-size:13.5px;color:var(--ink-2);line-height:1.82}
.tl-item li::before{content:"";position:absolute;left:2px;top:11px;width:4px;height:4px;border-radius:50%;background:rgba(159,179,205,.45)}
.tl-item li b{color:#eaf1ff;font-weight:600}

/* ---------- download ---------- */
.dl-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:52px;
  border:1px solid rgba(120,170,255,.26);
  background:
    radial-gradient(120% 140% at 88% 8%,rgba(0,91,172,.44),transparent 55%),
    linear-gradient(140deg,rgba(16,28,46,.96),rgba(7,12,20,.98));
  box-shadow:0 40px 90px -50px rgba(30,90,220,.85);
  display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;
}
.dl-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:22px 22px;opacity:.34;
  -webkit-mask-image:radial-gradient(ellipse at 82% 0%,#000,transparent 64%);
  mask-image:radial-gradient(ellipse at 82% 0%,#000,transparent 64%);
}
.dl-left{position:relative;z-index:2}
.dl-app{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.dl-app img{width:68px;height:68px;border-radius:18px;box-shadow:0 16px 36px -12px rgba(0,91,172,.95)}
.dl-app .n{font-size:19px;font-weight:700}
.dl-app .v{font-size:11.5px;color:var(--b3);margin-top:2px;font-family:var(--mono);letter-spacing:.05em}
.dl-card h2{font-size:clamp(26px,3.1vw,38px);margin-bottom:12px;line-height:1.18;letter-spacing:-.03em}
.dl-card .p{font-size:13.5px;color:#a9bdd8;line-height:1.82;max-width:450px}
.dl-meta{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0 26px}
.dl-meta span{
  font-size:11px;color:var(--ink-2);padding:5px 11px;border-radius:8px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.09);
}
.dl-btns{display:flex;flex-wrap:wrap;gap:12px}
.dl-note{margin-top:14px;font-size:11.5px;color:var(--dim);line-height:1.7;max-width:460px}
.dl-note a{color:var(--b3);text-decoration:underline;text-underline-offset:2px;text-decoration-color:rgba(157,195,240,.4)}
.dl-note a:hover{color:#fff}
.dl-right{position:relative;z-index:2;display:flex;justify-content:center}
.qr{
  width:238px;padding:20px 20px 14px;border-radius:22px;background:#fff;
  border:1px solid rgba(255,255,255,.16);text-align:center;
  box-shadow:0 26px 60px -26px rgba(0,0,0,.9),0 0 60px -28px rgba(46,139,214,.8);
  animation:qrFloat 7s ease-in-out infinite;
}
@keyframes qrFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.qr img{width:100%;height:auto;aspect-ratio:1;border-radius:4px;background:#fff}
.qr span{display:block;font-size:10.5px;color:#3f5069;margin-top:10px;letter-spacing:.02em;font-weight:550}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
.step{padding:24px;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.028);transition:border-color .3s,transform .3s}
.step:hover{border-color:var(--line-3);transform:translateY(-3px)}
.step b{display:flex;align-items:center;gap:9px;font-size:13.5px;margin-bottom:8px}
.step b i{
  width:21px;height:21px;border-radius:6px;display:grid;place-items:center;font-style:normal;
  font-size:10px;font-family:var(--mono);color:var(--b3);background:rgba(0,91,172,.16);
  border:1px solid rgba(0,91,172,.3);
}
.step p{font-size:12px;color:var(--muted);line-height:1.72}

/* ---------- privacy ---------- */
.pv-layout{display:grid;grid-template-columns:220px 1fr;gap:44px;align-items:start;margin-top:8px}
.pv-toc{position:sticky;top:calc(var(--nav-h) + 24px)}
.pv-toc h5{
  font-size:10.5px;letter-spacing:.15em;text-transform:uppercase;color:var(--dim);
  margin:0 0 14px;font-weight:600;
}
.pv-toc a{
  display:block;font-size:12.5px;color:var(--muted);padding:7px 12px;border-radius:8px;
  border-left:1px solid var(--line);transition:color .22s,background .22s,border-color .22s,padding .22s;
}
.pv-toc a:hover{color:var(--ink);background:rgba(255,255,255,.04)}
.pv-toc a.active{color:var(--b3);border-left-color:var(--b2);background:rgba(0,91,172,.14);padding-left:15px}
.privacy-card{
  max-width:860px;background:var(--glass);border:1px solid var(--line);border-radius:22px;
  padding:40px 42px;-webkit-backdrop-filter:blur(20px) saturate(150%);backdrop-filter:blur(20px) saturate(150%);
  box-shadow:var(--shadow);
}
.pv-meta{display:flex;gap:22px;flex-wrap:wrap;font-family:var(--mono);font-size:11.5px;color:var(--dim);margin-bottom:24px}
.pv-body h3{
  font-size:16.5px;color:#eaf2ff;margin:32px 0 12px;padding-left:14px;
  border-left:3px solid var(--b1);line-height:1.45;scroll-margin-top:110px;
}
.pv-body h3:first-child{margin-top:0}
.pv-body h4{font-size:14px;color:#cfe0f7;margin:18px 0 8px}
.pv-body p{font-size:13.5px;color:var(--muted);line-height:1.88;margin:0 0 12px}
.pv-body ul{margin:0 0 14px;padding-left:20px}
.pv-body li{font-size:13.5px;color:var(--muted);line-height:1.88;margin-bottom:7px}
.pv-body b{color:#dbe8fa;font-weight:600}
.pv-mail{color:var(--b3);font-family:var(--mono)}
.pv-foot{margin-top:28px;padding-top:18px;border-top:1px dashed var(--line);font-size:12px;color:var(--dim)}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:60;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;background:rgba(10,18,30,.84);border:1px solid var(--line-2);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  opacity:0;pointer-events:none;transform:translateY(12px);
  transition:opacity .35s,transform .35s,background .22s;
}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{background:rgba(0,91,172,.55)}
.to-top svg{width:20px;height:20px}
.to-top .ring{position:absolute;inset:-1px;transform:rotate(-90deg)}
.to-top .ring circle{fill:none;stroke:var(--b2);stroke-width:2;stroke-linecap:round;stroke-dasharray:138.2;stroke-dashoffset:138.2;transition:stroke-dashoffset .1s linear}

/* ---------- footer ---------- */
footer{
  margin-top:var(--sec-pad);border-top:1px solid var(--line);padding:56px 0 42px;
  background:linear-gradient(180deg,rgba(255,255,255,.012),transparent);
}
.foot-top{display:flex;justify-content:space-between;gap:44px;flex-wrap:wrap;margin-bottom:38px}
.foot-brand{max-width:350px}
.foot-brand div{display:flex;align-items:center;gap:11px;margin-bottom:14px;font-weight:700}
.foot-brand img{width:32px;height:32px;border-radius:9px}
.foot-brand p{font-size:12px;color:var(--muted);line-height:1.82}
.foot-links{display:flex;gap:58px;flex-wrap:wrap}
.foot-col h5{font-size:10.5px;letter-spacing:.15em;text-transform:uppercase;color:var(--dim);margin:0 0 15px;font-weight:600}
.foot-col a{display:block;font-size:12.5px;color:var(--ink-2);margin-bottom:10px;transition:color .2s,transform .2s}
.foot-col a:hover{color:#fff;transform:translateX(3px)}
.foot-bot{
  border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:11px;color:var(--dim);line-height:1.8;
}
.foot-bot .disclaimer{max-width:740px}

/* ---------- reveal (no-JS 安全) ---------- */
.js .rv{opacity:0;translate:0 26px;transition:opacity .95s var(--ease),translate .95s var(--ease);transition-delay:var(--d,0ms)}
.js .rv.in{opacity:1;translate:0 0}
.js .rv-l{translate:-34px 0}
.js .rv-r{translate:34px 0}
.js .rv-s{translate:0 0;scale:.94}
.js .rv-s.in{scale:1}
.js .rv-b{translate:0 18px;filter:blur(8px);transition:opacity .9s var(--ease),translate .9s var(--ease),filter .9s var(--ease)}
.js .rv-b.in{filter:blur(0)}

/* ---------- responsive ---------- */
/* ---------- 循环动效（GIF 式展示） ---------- */
.gif-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:38px 26px;margin-top:52px}
.gif-card{margin:0;display:flex;flex-direction:column;gap:16px}
.gif-stage{
  position:relative;aspect-ratio:16/10;border-radius:20px;overflow:hidden;
  border:1px solid var(--line-2);padding:30px;
  display:flex;flex-direction:column;justify-content:center;
  background:
    radial-gradient(80% 100% at 18% 0%,rgba(0,91,172,.3),transparent 62%),
    linear-gradient(150deg,#0e1a2b,#070d16);
  transition:border-color .4s,transform .5s var(--ease),box-shadow .5s;
}
.gif-card:hover .gif-stage{
  border-color:rgba(157,195,240,.34);transform:translateY(-4px);
  box-shadow:0 32px 74px -42px rgba(0,91,172,.95);
}
.gif-stage::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:22px 22px;opacity:.3;
  -webkit-mask-image:radial-gradient(ellipse at 30% 0%,#000,transparent 66%);
  mask-image:radial-gradient(ellipse at 30% 0%,#000,transparent 66%);
}
.gif-stage.is-center{align-items:center;justify-content:center;text-align:center}
.gif-rec{
  position:absolute;top:13px;left:15px;z-index:3;display:inline-flex;align-items:center;gap:6px;
  font-family:var(--mono);font-size:9px;letter-spacing:.16em;color:#8fa8c6;
}
.gif-rec i{width:6px;height:6px;border-radius:50%;background:#2e8bd6;box-shadow:0 0 8px #2e8bd6;animation:recBlink 1.8s ease-in-out infinite}
@keyframes recBlink{0%,100%{opacity:.3}50%{opacity:1}}

/* 01 课程表 */
.gif-week{display:flex;flex-direction:column;gap:8px;position:relative;z-index:2}
.gif-week-h{display:flex;align-items:center;gap:7px;font-size:9.5px;color:var(--dim);margin-bottom:1px}
.gif-week-h b{font-size:10.5px;color:var(--b3);font-family:var(--mono);letter-spacing:.06em;margin-right:auto}
.gif-week-h i{width:17px;height:17px;border-radius:5px;display:grid;place-items:center;font-style:normal;background:rgba(255,255,255,.05);border:1px solid var(--line)}
.gif-course{
  display:flex;flex-direction:column;gap:2px;padding:8px 11px;border-radius:9px;opacity:0;
  background:rgba(255,255,255,.045);border:1px solid var(--line);border-left:2px solid rgba(46,139,214,.5);
  animation:courseLoop 4.6s var(--d,0ms) infinite;
}
.gif-course b{font-size:11.5px;color:#e6f0ff;font-weight:600}
.gif-course span{font-size:9px;color:var(--dim);font-family:var(--mono)}
.gif-course.is-hot{background:rgba(0,91,172,.24);border-color:rgba(46,139,214,.46);border-left-color:var(--b3);box-shadow:0 0 22px -12px rgba(46,139,214,.9)}
@keyframes courseLoop{
  0%{opacity:0;transform:translateX(-16px)}
  10%,74%{opacity:1;transform:none}
  86%,100%{opacity:0;transform:translateX(12px)}
}

/* 02 绩点环 */
.gif-ring{width:146px;height:146px;overflow:visible}
.gif-ring .r-track{fill:none;stroke:rgba(255,255,255,.09);stroke-width:8}
.gif-ring .r-val{
  fill:none;stroke:#3f9ae8;stroke-width:8;stroke-linecap:round;
  stroke-dasharray:314.16;stroke-dashoffset:314.16;
  transform:rotate(-90deg);transform-origin:60px 60px;
  animation:gpaLoop 4.6s ease-out infinite;
  filter:drop-shadow(0 0 10px rgba(46,139,214,.55));
}
@keyframes gpaLoop{0%{stroke-dashoffset:314.16}58%{stroke-dashoffset:78}84%{stroke-dashoffset:78}100%{stroke-dashoffset:314.16}}
.gif-gpa{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;pointer-events:none}
.gif-gpa b{font-family:var(--mono);font-size:27px;letter-spacing:-.03em;color:#eaf4ff;line-height:1}
.gif-gpa span{font-size:9px;letter-spacing:.1em;color:var(--dim);text-transform:uppercase}

/* 03 抢课 */
.gif-grab-btn{
  position:relative;z-index:2;padding:9px 24px;border-radius:10px;
  font-size:12.5px;font-weight:650;color:#fff;
  background:linear-gradient(180deg,#2e8bd6,#005bac);
  box-shadow:0 14px 28px -16px rgba(46,139,214,.95),inset 0 1px 0 rgba(255,255,255,.28);
  animation:grabTap 5.2s ease-in-out infinite;
}
@keyframes grabTap{0%,10%{transform:scale(1)}14%{transform:scale(.93)}19%{transform:scale(1.02)}25%,100%{transform:scale(1)}}
.gif-rip{
  position:absolute;inset:0;border-radius:10px;border:1.5px solid rgba(157,195,240,.9);
  opacity:0;animation:grabRip 5.2s ease-out infinite;
}
@keyframes grabRip{
  0%,13%{opacity:0;transform:scale(.96)}
  16%{opacity:.85;transform:scale(1)}
  42%{opacity:0;transform:scale(1.55)}
  100%{opacity:0;transform:scale(1.55)}
}
.gif-bar{position:relative;z-index:2;width:62%;max-width:210px;height:5px;border-radius:99px;background:rgba(255,255,255,.09);margin-top:16px;overflow:hidden}
.gif-bar i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,#2e8bd6,#9dc3f0);animation:grabBar 5.2s ease-in-out infinite}
@keyframes grabBar{0%,16%{width:0}60%,86%{width:100%}100%{width:0}}
.gif-ok{margin-top:12px;font-size:10.5px;color:#8fe3b8;opacity:0;animation:grabOk 5.2s ease-out infinite}
.gif-ok::before{content:"✓ "}
@keyframes grabOk{
  0%,62%{opacity:0;transform:translateY(4px)}
  69%,90%{opacity:1;transform:none}
  100%{opacity:0;transform:none}
}

/* 04 主题切换 */
.gif-panel{
  position:relative;z-index:2;width:74%;max-width:250px;padding:14px;border-radius:14px;
  background:#0d1725;border:1px solid rgba(255,255,255,.12);
  animation:panelTheme 6s ease-in-out infinite;
}
.gif-panel-h{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.gif-panel-h i{width:24px;height:24px;border-radius:8px;background:linear-gradient(160deg,#2e8bd6,#005bac)}
.gif-panel-h b{width:56px;height:6px;border-radius:99px;background:rgba(255,255,255,.18);animation:panelLine 6s ease-in-out infinite}
.gif-lines{display:flex;flex-direction:column;gap:7px}
.gif-lines i{height:6px;border-radius:99px;background:rgba(255,255,255,.14);animation:panelLine 6s ease-in-out infinite}
.gif-switch{
  margin-top:14px;width:44px;height:22px;border-radius:99px;position:relative;
  background:rgba(255,255,255,.14);animation:switchBg 6s ease-in-out infinite;
}
.gif-switch b{
  position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:50%;background:#9dc3f0;
  animation:knobMove 6s cubic-bezier(.4,0,.2,1) infinite;
}
@keyframes panelTheme{
  0%,36%{background:#0d1725;border-color:rgba(255,255,255,.12)}
  50%,86%{background:#eef5fd;border-color:rgba(0,91,172,.22)}
  100%{background:#0d1725;border-color:rgba(255,255,255,.12)}
}
@keyframes panelLine{
  0%,36%{background:rgba(255,255,255,.16)}
  50%,86%{background:rgba(9,26,45,.18)}
  100%{background:rgba(255,255,255,.16)}
}
@keyframes switchBg{
  0%,36%{background:rgba(255,255,255,.14)}
  50%,86%{background:rgba(0,91,172,.22)}
  100%{background:rgba(255,255,255,.14)}
}
@keyframes knobMove{
  0%,36%{transform:translateX(0);background:#9dc3f0}
  50%,86%{transform:translateX(22px);background:#005bac}
  100%{transform:translateX(0);background:#9dc3f0}
}

.gif-card figcaption{display:flex;gap:13px;align-items:flex-start}
.gif-card h4{font-size:15.5px;color:#eaf2ff;margin-bottom:5px}
.gif-card figcaption p{font-size:12.5px;color:var(--muted);line-height:1.66}
.gif-note{
  display:inline-flex;align-items:center;gap:8px;margin-top:30px;
  font-size:11.5px;color:var(--muted);padding:8px 14px;border-radius:99px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.gif-note i{width:6px;height:6px;border-radius:50%;background:#2e8bd6;box-shadow:0 0 8px #2e8bd6}
.gif-card:hover .gif-stage,.gif-card:hover .gif-stage *{animation-play-state:paused}

/* 演示光标 */
.demo-cursor{
  position:absolute;left:0;top:0;width:26px;height:26px;margin:-13px 0 0 -13px;border-radius:50%;
  border:2px solid rgba(255,255,255,.88);background:rgba(157,195,240,.2);
  box-shadow:0 0 0 6px rgba(46,139,214,.16),0 8px 20px rgba(0,0,0,.55);
  opacity:0;pointer-events:none;z-index:5;
  transition:left .45s var(--ease),top .45s var(--ease),opacity .3s,transform .16s;
}
.demo-cursor.is-tap{transform:scale(.7);background:rgba(255,255,255,.55)}
@keyframes dockTap{0%{box-shadow:0 0 0 0 rgba(157,195,240,.55)}100%{box-shadow:0 0 0 15px rgba(157,195,240,0)}}
.dock-item.is-tap{animation:dockTap .62s ease-out}

@media (max-width:1080px){
  :root{--sec-pad:104px}
  .hero-grid{grid-template-columns:1fr;gap:20px}
  .stage{min-height:560px;margin-top:14px}
  .orbit.o2{display:none}
  .gallery{grid-template-columns:repeat(2,1fr);gap:42px 22px}
  .oss-card,.dl-card,.demo,.duo{grid-template-columns:1fr;padding:34px}
  .dl-right{justify-content:flex-start}
  .demo-stage{min-height:auto;padding:30px 20px}
  .c7,.c6,.c5,.c4,.c3{grid-column:span 6}
  .bento.is-filtered{grid-template-columns:repeat(2,1fr)}
  .stats-in{grid-template-columns:repeat(3,1fr)}
  .stat:nth-child(3){border-right:0}
  .stat:nth-child(4),.stat:nth-child(5){border-top:1px solid var(--line)}
  .tech{grid-template-columns:repeat(2,1fr)}
  .tab-grid{grid-template-columns:1fr}
  .specs{grid-template-columns:repeat(2,1fr)}
  .pv-layout{grid-template-columns:1fr;gap:26px}
  .pv-toc{position:static;display:flex;flex-wrap:wrap;gap:6px}
  .pv-toc h5{display:none}
  .pv-toc a{border-left:0;border:1px solid var(--line);border-radius:99px;padding:6px 12px;font-size:11.5px}
  .pv-toc a.active{padding-left:12px;border-color:rgba(46,139,214,.4)}
}
@media (max-width:860px){
  .nav-links{
    position:fixed;top:calc(var(--nav-h) + 8px);left:14px;right:14px;
    flex-direction:column;align-items:stretch;gap:2px;margin:0;padding:10px;
    border-radius:16px;border:1px solid var(--line-2);
    background:rgba(7,13,22,.97);-webkit-backdrop-filter:blur(26px);backdrop-filter:blur(26px);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:transform .32s var(--ease),opacity .28s;
    box-shadow:0 30px 60px -30px #000;
  }
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links>a{padding:12px 14px;font-size:14.5px}
  .nav-links>a:not(.nav-cta)::after{display:none}
  .nav-cta{margin:6px 0 0;justify-content:center;padding:12px 18px}
  .nav-toggle{display:flex}
  .nav-in{height:64px}
  :root{--nav-h:64px}
}
@media (max-width:760px){
  :root{--sec-pad:82px}
  .wrap{padding:0 18px}
  .hero{padding-top:calc(var(--nav-h) + 48px)}
  .hero-title{font-size:clamp(34px,9.4vw,46px)}
  .stage{min-height:520px;scale:.94;transform-origin:top center}
  .float.f1{left:-1%}.float.f2{right:-3%}.float.f3{display:none}
  .stats-in{grid-template-columns:repeat(2,1fr)}
  .stat{padding:22px 12px}
  .stat:nth-child(3){border-right:1px solid var(--line)}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-child(3),.stat:nth-child(4),.stat:nth-child(5){border-top:1px solid var(--line)}
  .stat:last-child{grid-column:span 2;border-right:0}
  .c7,.c6,.c5,.c4,.c3{grid-column:span 12}
  .bento.is-filtered{grid-template-columns:1fr}
  .flow svg{min-width:720px}
  .gallery{grid-template-columns:1fr;gap:36px}
  .tech{grid-template-columns:1fr}
  .detail-grid{grid-template-columns:1fr}
  .gif-grid{grid-template-columns:1fr;gap:30px}
  .gif-stage{padding:24px;aspect-ratio:16/11}
  .steps{grid-template-columns:1fr}
  .specs{grid-template-columns:1fr}
  .sec-head{margin-bottom:36px}
  .duo{padding:22px;gap:26px}
  .duo-devices{grid-template-columns:1fr 1.5fr;gap:14px}
  .duo-devices .phone{max-width:152px}
  .duo-copy>p{max-width:none}
  .demo{padding:18px}
  .demo-stage{padding:22px 14px}
  .dev-phone .dev-body{width:212px}
  .phone-dock{width:236px;padding:5px 6px}
  .dock-item{font-size:9px}
  .dock-item svg{width:14px;height:14px}
  .demo-cap{min-height:0}
  .stage-nav{width:32px;height:32px}
  .stage-nav.prev{left:4px}
  .stage-nav.next{right:4px}
  .subnav-bar{padding:8px 0 6px}
  .privacy-card{padding:26px 22px}
  .foot-links{gap:34px}
  .term-body{font-size:10px;line-height:1.95}
  .lb{padding:24px 12px}
  .lb .lb-prev{left:8px}.lb .lb-next{right:8px}
  .lb .lb-close{top:12px;right:12px}
  .lb .lb-count{top:16px;left:16px}
  .to-top{right:16px;bottom:16px;width:42px;height:42px}
  .dl-card,.oss-card{padding:26px}
  .qr{width:190px;padding:14px 14px 10px}
}
@media (max-width:560px){
  .demo-stage{padding:18px 8px}
  .phone-dock{width:100%;max-width:226px}
  .dock-item span{font-size:8.5px;letter-spacing:0}
  .stage-nav{display:none}
  .stage-dots{margin-bottom:12px}
  .demo-top{gap:8px}
  .demo-auto{padding:7px 10px;font-size:11px}
  .demo-auto span{display:none}
  .demo-auto svg{width:13px;height:13px}
  .tab-grid{gap:30px}
  .lb-hint{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .js .rv,.js .rv-l,.js .rv-r,.js .rv-s,.js .rv-b{opacity:1;translate:0 0;scale:1;filter:none}
  .hero-title .ln>span{transform:none;animation:none}
  .term-body .ln{opacity:1;transform:none}
  .js .card .bars div{transform:scaleY(1)}
  .spot{display:none}
  .gif-course{opacity:1;transform:none}
  .gif-bar i{width:100%}
  .gif-ok{opacity:1;transform:none}
  .gif-ring .r-val{stroke-dashoffset:78}
  .demo-cursor{display:none}
}