/* ===== mShell 官网 · 深黑 + 翠绿 ===== */
:root{
  --bg:#08090b;
  --bg-soft:#0d0f12;
  --panel:#101317;
  --panel-2:#14181d;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --txt:#e9ecef;
  --txt-dim:#9aa3ab;
  --txt-faint:#6b7480;
  --green:#34e29a;
  --green-2:#27c98a;
  --green-deep:#0f7a55;
  --radius:18px;
  --maxw:1180px;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:'Inter','Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--txt);font-family:var(--sans);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  line-height:1.6;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em;margin:0;font-weight:800}
section{position:relative}

/* ===== 通用 ===== */
.btn{
  display:inline-flex;align-items:center;gap:.5em;font-weight:600;font-size:15px;
  padding:.78em 1.4em;border-radius:999px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s cubic-bezier(.2,.8,.2,1),box-shadow .25s,background .2s,border-color .2s;
  white-space:nowrap;
}
.btn--sm{padding:.55em 1.05em;font-size:14px}
.btn--primary{background:linear-gradient(135deg,var(--green),var(--green-2));color:#04140d;box-shadow:0 8px 30px -8px rgba(52,226,154,.6)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px -8px rgba(52,226,154,.7)}
.btn--ghost{background:rgba(255,255,255,.04);border-color:var(--line-2);color:var(--txt)}
.btn--ghost:hover{background:rgba(255,255,255,.09);transform:translateY(-2px);border-color:var(--green)}

.eyebrow{color:var(--green);font-weight:700;font-size:13px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px}
.badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--green);
  background:rgba(52,226,154,.08);border:1px solid rgba(52,226,154,.25);padding:7px 16px;border-radius:999px;
  letter-spacing:.02em;
}
.grad{background:linear-gradient(120deg,var(--green) 0%,#7af0c4 60%,#cffced 100%);-webkit-background-clip:text;background-clip:text;color:transparent}

.section{max-width:var(--maxw);margin:0 auto;padding:110px 24px}
.section--alt{max-width:100%;background:
  radial-gradient(1200px 600px at 50% -10%,rgba(52,226,154,.06),transparent 60%),
  var(--bg-soft);
  border-block:1px solid var(--line);}
.section--alt > *{max-width:var(--maxw);margin-inline:auto}
.section__head{text-align:center;max-width:640px;margin:0 auto 60px}
.section__head h2{font-size:clamp(28px,4.4vw,46px)}
.section__head p{color:var(--txt-dim);font-size:18px;margin-top:16px}

/* ===== 顶栏 ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;gap:20px;
  padding:16px clamp(16px,4vw,40px);transition:background .3s,backdrop-filter .3s,border-color .3s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{background:rgba(8,9,11,.72);backdrop-filter:saturate(160%) blur(16px);border-bottom-color:var(--line)}
.nav__brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.01em}
.nav__brand img{border-radius:9px}
.nav__links{display:flex;gap:28px;margin-left:24px}
.nav__links a{color:var(--txt-dim);font-size:15px;font-weight:500;transition:color .2s}
.nav__links a:hover{color:var(--txt)}
.nav__actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.lang-toggle{
  display:flex;align-items:center;gap:4px;background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:999px;padding:6px 12px;cursor:pointer;font-family:var(--sans);font-size:13px;font-weight:600;color:var(--txt-faint);
}
.lang-toggle__opt{transition:color .2s}
.lang-toggle__opt.active{color:var(--green)}
.lang-toggle__sep{color:var(--txt-faint)}

/* ===== Hero ===== */
.hero{position:relative;padding:160px 24px 60px;text-align:center;overflow:hidden}
.hero__bg{position:absolute;inset:0;background:url('/assets/img/bg-aurora.webp') center top/cover no-repeat;opacity:.55;z-index:-2}
.hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(to bottom,transparent 40%,var(--bg) 96%)}
.hero__glow{position:absolute;top:-120px;left:50%;transform:translateX(-50%);width:900px;height:500px;
  background:radial-gradient(circle,rgba(52,226,154,.22),transparent 65%);filter:blur(30px);z-index:-1}
.hero__inner{max-width:880px;margin:0 auto}
.hero__title{font-size:clamp(38px,6.6vw,76px);font-weight:900;margin:26px 0 0}
.hero__sub{color:var(--txt-dim);font-size:clamp(16px,2.2vw,21px);max-width:640px;margin:24px auto 0}
.hero__cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:36px}
.hero__note{color:var(--txt-faint);font-size:14px;margin-top:22px}
.hero__device{max-width:1040px;margin:60px auto 0;animation:float 7s ease-in-out infinite}
.hero__device img{filter:drop-shadow(0 40px 80px rgba(0,0,0,.6))}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}

/* ===== 滚动条 ===== */
.marquee{border-block:1px solid var(--line);background:var(--bg-soft);overflow:hidden;padding:20px 0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee__track{display:flex;gap:26px;align-items:center;white-space:nowrap;width:max-content;
  animation:scroll 36s linear infinite;font-weight:600;color:var(--txt-dim);font-size:16px}
.marquee__track i{color:var(--green);font-style:normal}
.marquee:hover .marquee__track{animation-play-state:paused}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ===== 特性网格 ===== */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:linear-gradient(180deg,var(--panel),var(--bg-soft));border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;transition:transform .3s cubic-bezier(.2,.8,.2,1),border-color .3s,box-shadow .3s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;inset:0;background:radial-gradient(400px 160px at var(--mx,50%) 0%,rgba(52,226,154,.1),transparent 70%);opacity:0;transition:opacity .3s}
.card:hover{transform:translateY(-6px);border-color:rgba(52,226,154,.4);box-shadow:0 20px 50px -20px rgba(0,0,0,.8)}
.card:hover::before{opacity:1}
.card__icon{width:46px;height:46px;display:grid;place-items:center;border-radius:12px;font-size:22px;
  background:rgba(52,226,154,.1);border:1px solid rgba(52,226,154,.25);margin-bottom:18px}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--txt-dim);font-size:14.5px;line-height:1.6;margin:0}

/* ===== macOS 窗口还原 ===== */
.window{max-width:1000px;margin:0 auto;border-radius:14px;overflow:hidden;border:1px solid var(--line-2);
  background:var(--panel);box-shadow:0 50px 120px -40px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.02)}
.window__bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#0b0d10;border-bottom:1px solid var(--line)}
.dot{width:12px;height:12px;border-radius:50%}
.dot--r{background:#ff5f57}.dot--y{background:#febc2e}.dot--g{background:#28c840}
.window__title{margin-left:auto;margin-right:auto;font-size:13px;color:var(--txt-faint);font-weight:600;transform:translateX(-22px)}
.window__body{display:grid;grid-template-columns:240px 1fr;min-height:420px}
.sb{background:#0a0c0f;border-right:1px solid var(--line);padding:14px 12px;font-size:13px}
.sb__search{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:9px;padding:8px 11px;color:var(--txt-faint);margin-bottom:16px}
.sb__search em{font-style:normal}
.sb__group{color:var(--txt-faint);font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin:14px 6px 8px}
.host{display:flex;gap:9px;padding:8px 8px;border-radius:9px;margin-bottom:2px;transition:background .2s}
.host--active{background:rgba(52,226,154,.08)}
.host:hover{background:rgba(255,255,255,.04)}
.host__dot{width:7px;height:7px;border-radius:50%;background:var(--txt-faint);margin-top:6px;flex:none}
.host__dot--on{background:var(--green);box-shadow:0 0 8px var(--green)}
.host b{font-weight:600;font-size:13.5px}
.host small{display:block;color:var(--txt-faint);font-size:11.5px;font-family:var(--mono);margin-top:1px}
.tags{display:flex;gap:5px;margin-top:6px;flex-wrap:wrap}
.tags i{font-style:normal;font-size:10.5px;font-weight:600;color:var(--green);background:rgba(52,226,154,.1);
  border:1px solid rgba(52,226,154,.2);padding:1px 7px;border-radius:6px}
.term{display:flex;flex-direction:column;background:#0c0e11}
.term__tabs{display:flex;gap:6px;padding:10px 12px;border-bottom:1px solid var(--line)}
.tab{font-size:12px;color:var(--txt-faint);background:rgba(255,255,255,.04);padding:5px 12px;border-radius:8px}
.tab--active{color:var(--green);background:rgba(52,226,154,.12);border:1px solid rgba(52,226,154,.25)}
.tab--plus{color:var(--txt-faint)}
.term__screen{flex:1;margin:0;padding:18px 20px;font-family:var(--mono);font-size:13.5px;line-height:1.7;
  color:#cdd6d0;white-space:pre-wrap;word-break:break-word;overflow:hidden}
.term__screen .g{color:var(--green)}
.term__screen .c{color:#7fd1ff}
.term__screen .d{color:var(--txt-faint)}
.cursor{display:inline-block;width:8px;height:16px;background:var(--green);vertical-align:-3px;animation:blink 1.1s steps(1) infinite;box-shadow:0 0 8px var(--green)}
@keyframes blink{50%{opacity:0}}

/* ===== 双卡：监控 + iPhone ===== */
.duo{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;margin-top:28px;align-items:stretch}
.panel{background:linear-gradient(180deg,var(--panel),var(--bg-soft));border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.panel__title{font-weight:700;font-size:15px}
.panel--mon{position:relative;overflow:hidden}
.panel--mon::before{content:"";position:absolute;inset:0;background:radial-gradient(420px 200px at 80% -10%,rgba(52,226,154,.08),transparent 70%);pointer-events:none}
.panel__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.live{display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;color:var(--green);background:rgba(52,226,154,.1);border:1px solid rgba(52,226,154,.25);
  padding:4px 10px;border-radius:999px}
.live i{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(52,226,154,.6);animation:livePulse 1.8s ease-out infinite}
@keyframes livePulse{0%{box-shadow:0 0 0 0 rgba(52,226,154,.55)}70%{box-shadow:0 0 0 7px rgba(52,226,154,0)}100%{box-shadow:0 0 0 0 rgba(52,226,154,0)}}

/* CPU 实时折线 */
.spark{position:relative;margin-bottom:22px;border:1px solid var(--line);border-radius:12px;background:rgba(0,0,0,.25);padding:12px 14px 6px}
.spark__meta{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:6px}
.spark__lab{font-size:12px;color:var(--txt-dim);font-weight:600;letter-spacing:.04em}
.spark__val{font-family:var(--mono);font-size:20px;font-weight:700;color:var(--green);font-variant-numeric:tabular-nums}
.spark__svg{display:block;width:100%;height:64px}
.spark__area{fill:url(#sgrad)}
.spark__line{fill:none;stroke:var(--green);stroke-width:2;stroke-linejoin:round;stroke-linecap:round;filter:drop-shadow(0 0 4px rgba(52,226,154,.55))}
.spark__dot{fill:#eafff5;filter:drop-shadow(0 0 6px var(--green))}

.meter{display:grid;grid-template-columns:64px 1fr 52px;align-items:center;gap:14px;margin-bottom:16px;position:relative;z-index:1}
.meter label{color:var(--txt-dim);font-size:13.5px}
.meter b{font-family:var(--mono);font-size:13px;color:var(--green);text-align:right;font-variant-numeric:tabular-nums}
.bar{height:8px;border-radius:999px;background:rgba(255,255,255,.06);overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,var(--green-deep),var(--green));
  transition:width 1.1s cubic-bezier(.2,.8,.2,1);box-shadow:0 0 12px rgba(52,226,154,.5)}
.bar i.warn{background:linear-gradient(90deg,#b88706,#f3c44a);box-shadow:0 0 12px rgba(243,196,74,.45)}
.bar i.crit{background:linear-gradient(90deg,#a3261b,#ff6a5a);box-shadow:0 0 12px rgba(255,106,90,.5)}
.meter[data-metric] b.warn{color:#f3c44a}
.meter[data-metric] b.crit{color:#ff6a5a}

/* 网络吞吐 */
.net{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:20px 0 4px;position:relative;z-index:1}
.net__cell{display:flex;align-items:baseline;gap:6px;background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:10px;padding:10px 12px}
.net__cell b{font-family:var(--mono);font-size:15px;color:var(--txt);font-weight:700;font-variant-numeric:tabular-nums}
.net__cell em{font-style:normal;font-size:11px;color:var(--txt-faint)}
.net__ar{font-weight:800;font-size:13px}
.net__ar--up{color:var(--green)}
.net__ar--dn{color:#7fd1ff}
.net__lab{font-size:11px;color:var(--txt-faint)}
.panel__foot{color:var(--txt-faint);font-size:12.5px;font-family:var(--mono);margin-top:20px;padding-top:16px;border-top:1px solid var(--line);position:relative;z-index:1}

.phone{background:#000;border:8px solid #1b1f24;border-radius:42px;padding:0;position:relative;overflow:hidden;
  box-shadow:0 40px 90px -30px rgba(0,0,0,.9);aspect-ratio:9/19.5;max-width:300px;margin:0 auto;width:100%}
.phone__notch{position:absolute;top:10px;left:50%;transform:translateX(-50%);width:90px;height:22px;background:#000;border-radius:999px;z-index:3}
.phone__screen{height:100%;display:flex;flex-direction:column;background:#0c0e11}
.phone__nav{padding:40px 16px 10px;font-size:14px;color:var(--txt-dim);display:flex;justify-content:space-between;border-bottom:1px solid var(--line)}
.phone__nav b{color:var(--txt);font-weight:600}
.phone__term{flex:1;margin:0;padding:14px;font-family:var(--mono);font-size:11.5px;line-height:1.7;color:#cdd6d0;white-space:pre-wrap;overflow:hidden}
.phone__term .g{color:var(--green)}
.keys{display:flex;gap:5px;padding:10px;border-top:1px solid var(--line);overflow:hidden}
.keys span{font-size:11px;color:var(--txt-dim);background:rgba(255,255,255,.06);border:1px solid var(--line);
  border-radius:6px;padding:5px 8px;font-family:var(--mono);flex:none}

/* iOS 虚拟键盘 */
.kbd{background:#1c1f25;padding:8px 5px 10px;display:flex;flex-direction:column;gap:7px;border-top:1px solid rgba(0,0,0,.4)}
.kbd__row{display:flex;gap:5px;justify-content:center}
.kbd__row--2{padding:0 14px}
.kbd__row--3{gap:6px}
.kbd kbd{flex:1 1 0;min-width:0;height:30px;display:grid;place-items:center;border-radius:6px;
  background:#3a3e45;color:#fff;font-family:var(--sans);font-size:14px;font-weight:500;
  box-shadow:0 1px 0 rgba(0,0,0,.5);text-transform:none}
.kbd .kbd--fn{background:#2a2d33;color:#cfd4da;font-size:13px;flex:0 0 30px}
.kbd .kbd--123{flex:0 0 40px;font-size:12px}
.kbd .kbd--space{flex:6 1 0;background:#3a3e45}
.kbd .kbd--ret{flex:0 0 64px;background:#2a2d33;color:#cfd4da;font-size:12px}

/* ===== iPad 横屏 · 分屏 ===== */
.ipad{max-width:920px;margin:0 auto 28px;background:#0b0d10;border:13px solid #1a1e23;border-radius:30px;
  box-shadow:0 50px 120px -45px rgba(0,0,0,.9),inset 0 0 0 1px rgba(255,255,255,.03);aspect-ratio:1.46/1;overflow:hidden}
.ipad__screen{height:100%;display:flex;flex-direction:column;background:#0c0e11;position:relative}
.ipad__bar{display:flex;align-items:center;justify-content:space-between;padding:11px 16px;border-bottom:1px solid var(--line);background:#0a0c0f}
.ipad__name{font-size:13px;font-weight:600;color:var(--txt-dim)}
.ipad__badge{display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:700;color:#f3b24a;
  background:rgba(243,178,74,.1);border:1px solid rgba(243,178,74,.28);padding:4px 11px;border-radius:999px}
.ipad__badge i{width:6px;height:6px;border-radius:50%;background:#f3b24a;box-shadow:0 0 8px #f3b24a;animation:blink 1.3s steps(1) infinite}
.ipad__badge{transition:box-shadow .25s,border-color .25s,background .25s}
.ipad__badge.bcasting{background:rgba(243,178,74,.2);border-color:rgba(243,178,74,.55);box-shadow:0 0 18px -2px rgba(243,178,74,.6)}
.ipad__badge.bcasting i{background:#ffca66;animation:amberPulse 1s ease-out infinite}
@keyframes amberPulse{0%{box-shadow:0 0 0 0 rgba(243,178,74,.6)}70%{box-shadow:0 0 0 7px rgba(243,178,74,0)}100%{box-shadow:0 0 0 0 rgba(243,178,74,0)}}
.ipad__split{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:2px;background:rgba(255,255,255,.06)}
.ipane{background:#0c0e11;display:flex;flex-direction:column;position:relative}
.ipane--active::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--green);z-index:2}
.ipane__hd{display:flex;align-items:center;gap:8px;padding:9px 14px;font-size:12.5px;font-weight:600;color:var(--txt-dim);border-bottom:1px solid var(--line)}
.ipane--active .ipane__hd{color:var(--txt)}
.ipane__dot{width:7px;height:7px;border-radius:50%;background:var(--txt-faint)}
.ipane__dot--on{background:var(--green);box-shadow:0 0 8px var(--green)}
.ipane__term{flex:1;margin:0;padding:14px 16px;font-family:var(--mono);font-size:12.5px;line-height:1.85;color:#cdd6d0;white-space:pre-wrap}
.ipane__term .g{color:var(--green)}
.ipane__term .d{color:var(--txt-faint)}
.ipane__term .bcast{color:var(--green);animation:blink 1.05s steps(1) infinite}
.ipad__hint{position:absolute;bottom:0;left:0;right:0;text-align:center;padding:9px;font-size:12px;color:var(--txt-faint);
  background:linear-gradient(to top,rgba(8,9,11,.92),transparent)}

/* ===== 隧道 + SFTP ===== */
.subhead{text-align:center;margin:64px 0 26px}
.subhead h3{font-size:clamp(20px,3vw,28px);color:var(--txt)}
.duo--2{align-items:start}
.duo--2 .panel{height:100%}

.tun{display:flex;flex-direction:column;gap:9px}
.tun__row{display:grid;grid-template-columns:34px 1fr auto 36px;align-items:center;gap:12px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:11px;padding:11px 13px;position:relative;z-index:1}
.tun__row--off{opacity:.5}
.tag-t{font-family:var(--mono);font-size:11px;font-weight:700;text-align:center;padding:3px 0;border-radius:6px}
.tag-t--l{color:var(--green);background:rgba(52,226,154,.12);border:1px solid rgba(52,226,154,.28)}
.tag-t--r{color:#7fd1ff;background:rgba(127,209,255,.1);border:1px solid rgba(127,209,255,.26)}
.tag-t--d{color:#f3b24a;background:rgba(243,178,74,.1);border:1px solid rgba(243,178,74,.26)}
.tun__path{display:flex;align-items:center;gap:7px;flex-wrap:wrap;min-width:0}
.tun__path b{font-family:var(--mono);font-size:12.5px;font-weight:600;color:var(--txt)}
.tun__path em{font-style:normal;color:var(--txt-faint)}
.tun__sub{font-size:12px;color:var(--txt-dim)}
.tun__bw{font-family:var(--mono);font-size:11.5px;color:var(--txt-dim);white-space:nowrap}
.tun__bw .ar-up{color:var(--green);font-style:normal}
.tun__bw .ar-dn{color:#7fd1ff;font-style:normal}
.sw{width:34px;height:20px;border-radius:999px;background:rgba(255,255,255,.12);position:relative;transition:background .2s;flex:none}
.sw::after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:#fff;transition:left .2s}
.sw--on{background:var(--green)}
.sw--on::after{left:16px}

.crumb{font-family:var(--mono);font-size:12px;color:var(--txt-dim);background:rgba(255,255,255,.04);
  border:1px solid var(--line);padding:4px 10px;border-radius:8px}
.files{display:flex;flex-direction:column;gap:2px;position:relative;z-index:1}
.file{display:grid;grid-template-columns:22px 1fr auto;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;transition:background .2s}
.file:hover{background:rgba(255,255,255,.04)}
.file--act{background:rgba(52,226,154,.07)}
.file__ic{font-family:var(--mono);color:var(--txt-faint);text-align:center}
.file__ic--dir{color:var(--green)}
.file__nm{font-size:13.5px;color:var(--txt)}
.file__sz{font-family:var(--mono);font-size:11.5px;color:var(--txt-faint)}
.xfer{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);position:relative;z-index:1}
.xfer__top{display:flex;justify-content:space-between;font-size:12.5px;color:var(--txt-dim);margin-bottom:9px}
.xfer__top b{font-family:var(--mono);color:var(--green)}
.xfer__bar{height:7px}
.xfer__bar i{background:linear-gradient(90deg,var(--green-deep),var(--green));position:relative;overflow:hidden}
.xfer__bar i::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  transform:translateX(-100%);animation:shimmer 1.5s linear infinite}
@keyframes shimmer{to{transform:translateX(100%)}}
.xfer__sub{font-size:11.5px;color:var(--txt-faint);font-family:var(--mono);margin-top:8px}

/* ===== 安全 ===== */
.security{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
.security h2{font-size:clamp(26px,3.6vw,40px);margin-bottom:18px}
.security__text > p{color:var(--txt-dim);font-size:17px;margin-bottom:24px}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.ticks li{position:relative;padding-left:32px;color:var(--txt);font-size:15.5px}
.ticks li::before{content:"";position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;
  background:rgba(52,226,154,.12);border:1px solid rgba(52,226,154,.35)}
.ticks li::after{content:"✓";position:absolute;left:5px;top:1px;color:var(--green);font-size:12px;font-weight:800}
.security__art{display:grid;place-items:center}
.shield{color:var(--green);filter:drop-shadow(0 0 30px rgba(52,226,154,.4));animation:pulse 4s ease-in-out infinite}
.shield svg{width:clamp(140px,22vw,220px);height:auto}
@keyframes pulse{0%,100%{transform:scale(1);opacity:.92}50%{transform:scale(1.05);opacity:1}}

/* ===== 平台 ===== */
.platforms .section__head{margin-bottom:46px}
.plat-grid{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
.plat{background:linear-gradient(180deg,var(--panel),var(--bg-soft));border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 44px;text-align:center;transition:transform .3s,border-color .3s}
.plat:hover{transform:translateY(-6px);border-color:rgba(52,226,154,.4)}
.plat__ico{width:50px;height:50px;margin:0 auto 14px;border-radius:13px;background:rgba(52,226,154,.1);
  border:1px solid rgba(52,226,154,.25);position:relative}
.plat__ico::after{content:">_";position:absolute;inset:0;display:grid;place-items:center;color:var(--green);font-family:var(--mono);font-weight:700;font-size:18px}
.plat b{display:block;font-size:17px}
.plat small{color:var(--txt-faint);font-size:13px;font-family:var(--mono)}

/* ===== 最终 CTA ===== */
.cta-final__card{max-width:680px;margin:0 auto;text-align:center;padding:56px 32px;border-radius:28px;
  background:radial-gradient(600px 300px at 50% 0%,rgba(52,226,154,.12),transparent 70%),linear-gradient(180deg,var(--panel),var(--bg-soft));
  border:1px solid rgba(52,226,154,.25)}
.cta-final__card img{margin:0 auto 22px;border-radius:20px;filter:drop-shadow(0 12px 30px rgba(0,0,0,.6))}
.cta-final__card h2{font-size:clamp(28px,4vw,42px)}
.cta-final__card p{color:var(--txt-dim);font-size:18px;margin:16px 0 30px}

/* ===== 页脚 ===== */
.footer{border-top:1px solid var(--line);text-align:center;padding:50px 24px;background:var(--bg-soft)}
.footer__brand{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:18px}
.footer__brand img{border-radius:7px}
.footer__tag{color:var(--txt-dim);font-size:14.5px;margin:14px 0 6px}
.footer__links{display:flex;gap:22px;justify-content:center;margin:14px 0 10px;flex-wrap:wrap}
.footer__links a{color:var(--txt-dim);font-size:14px;font-weight:500;transition:color .2s}
.footer__links a:hover{color:var(--green)}
.footer__copy{color:var(--txt-faint);font-size:13px}

/* ===== 滚动揭示 ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal:nth-child(2){transition-delay:.06s}
.reveal:nth-child(3){transition-delay:.12s}
.reveal:nth-child(4){transition-delay:.18s}

/* ===== 响应式 ===== */
@media (max-width:980px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .duo{grid-template-columns:1fr}
  .security{grid-template-columns:1fr;gap:34px}
  .security__art{order:-1}
  .nav__links{display:none}
}
@media (max-width:620px){
  .section{padding:80px 18px}
  .grid{grid-template-columns:1fr}
  .window__body{grid-template-columns:1fr}
  .sb{display:none}
  .hero{padding:130px 18px 40px}
  .btn{font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}