/* ============================================================
   云小天官网 · style.css
   ============================================================ */

:root{
  --bg:#05070d;
  --bg-soft:#0a0e17;
  --surface:rgba(255,255,255,.055);
  --surface-2:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.055);
  --txt:#e8edf7;
  --txt-dim:#9aa6bd;
  --txt-mute:#6b7789;
  --cyan:#5ef2ff;
  --blue:#3b82f6;
  --violet:#8f6bff;
  --grad:linear-gradient(100deg,#5ef2ff 0%,#6ea8ff 45%,#a78bfa 100%);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:10px;
  --shadow:0 24px 70px -28px rgba(0,0,0,.9);
  --font:"Inter","SF Pro Display",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"SF Mono","JetBrains Mono","Fira Code",ui-monospace,Menlo,Consolas,monospace;
}

*{margin:0;padding:0;box-sizing:border-box}

/* 全面禁止长按复制 / 选中 / 系统菜单（输入框除外） */
*,*::before,*::after{
  -webkit-touch-callout:none;
  -webkit-user-select:none;
  -moz-user-select:none;
  -ms-user-select:none;
  user-select:none;
}
input,textarea,select,[contenteditable="true"]{
  -webkit-user-select:text;
  -moz-user-select:text;
  user-select:text;
}
img,svg,a{-webkit-touch-callout:none}
/* 去掉浏览器（WebView）默认的点击高光与聚焦光晕 */
html,body,a,button,summary,label,input,textarea,select,[role="button"]{
  -webkit-tap-highlight-color:transparent;
}
button{
  font:inherit;color:inherit;background:none;border:0;cursor:pointer;
  -webkit-appearance:none;appearance:none;
}
a:focus,button:focus,summary:focus,input:focus,textarea:focus{outline:none}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid rgba(94,242,255,.6);outline-offset:3px;border-radius:8px;
}
img{-webkit-user-drag:none}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--txt);
  font-family:var(--font);
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(94,242,255,.28);color:#fff}
a{color:inherit;text-decoration:none}
[hidden]{display:none !important}
img{max-width:100%;display:block}
code{font-family:var(--mono)}

/* ---------- 背景装饰 ---------- */
.bg-grid{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 20%,transparent 78%);
}
.bg-orb{
  position:fixed;border-radius:50%;filter:blur(120px);z-index:0;pointer-events:none;opacity:.5;
}
.orb-1{width:620px;height:620px;top:-240px;left:-160px;
  background:radial-gradient(circle,rgba(59,130,246,.5),transparent 68%);}
.orb-2{width:560px;height:560px;top:120px;right:-220px;
  background:radial-gradient(circle,rgba(143,107,255,.42),transparent 68%);}
#stars{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.65}

main,header,footer{position:relative;z-index:2}
.container{width:min(1180px,calc(100% - 48px));margin-inline:auto}
.container.narrow{width:min(820px,calc(100% - 48px))}

/* ---------- 通用 ---------- */
.grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.eyebrow{
  display:inline-block;font-family:var(--mono);font-size:11.5px;letter-spacing:.22em;
  color:var(--cyan);text-transform:uppercase;margin-bottom:18px;opacity:.85;
}
.sec-head{max-width:660px;margin-bottom:56px}
.sec-head h2{
  font-size:clamp(28px,4.2vw,46px);line-height:1.22;letter-spacing:-.02em;font-weight:700;
  text-wrap:balance;
}
.sec-head p{margin-top:16px;color:var(--txt-dim);font-size:16.5px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:11px 22px;border-radius:100px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.25s cubic-bezier(.2,.7,.3,1);
  white-space:nowrap;
}
.btn svg{width:17px;height:17px;flex:none}
.btn-primary{
  background:var(--grad);color:#05070d;
  box-shadow:0 8px 26px -10px rgba(94,242,255,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px -10px rgba(94,242,255,.7)}
.btn-ghost{
  background:var(--surface);border-color:var(--line);color:var(--txt);
}
.btn-ghost:hover{background:var(--surface-2);border-color:rgba(255,255,255,.18);transform:translateY(-2px)}
.btn-lg{padding:14px 28px;font-size:15.5px}
.btn-sm{padding:8px 16px;font-size:13px;border-radius:100px}

/* ---------- NAV ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:.3s;
  padding:14px 0;
}
.nav.scrolled{
  background:rgba(5,7,13,.94);
  border-bottom:1px solid var(--line-soft);
  padding:9px 0;
}
.nav-inner{
  width:min(1180px,calc(100% - 48px));margin-inline:auto;
  display:flex;align-items:center;gap:36px;
}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.01em;font-size:17px}
.logo-mark{width:30px;height:30px;display:grid;place-items:center}
.logo-mark svg{width:100%;height:100%;filter:drop-shadow(0 0 12px rgba(94,242,255,.5))}
.logo-mark img{width:100%;height:100%;object-fit:contain;border-radius:7px;display:block}
.nav-links{display:flex;gap:28px;margin-left:auto}
.nav-links a{
  font-size:14.5px;color:var(--txt-dim);transition:.2s;position:relative;
}
.nav-links a:hover{color:var(--txt)}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:1px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:.28s;
}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-cta .btn{padding:9px 18px;font-size:14px}
.burger{display:none;background:none;border:0;flex-direction:column;gap:5px;padding:8px;cursor:pointer}
.burger span{width:22px;height:1.8px;background:var(--txt);border-radius:2px;transition:.25s}
.burger.open span:nth-child(1){transform:translateY(6.8px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6.8px) rotate(-45deg)}

/* ---------- HERO ---------- */
.hero{padding:150px 0 0}
.hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;
  padding-bottom:80px;
}
.pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 14px 6px 10px;border-radius:100px;
  background:rgba(94,242,255,.06);border:1px solid rgba(94,242,255,.2);
  font-size:12.5px;color:#b8e9f5;margin-bottom:26px;
}
.dot{
  width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 3px rgba(94,242,255,.18);
  animation:pulse 2s infinite;
}
@keyframes pulse{50%{box-shadow:0 0 0 7px rgba(94,242,255,0)}}

.hero h1{
  font-size:clamp(34px,5.6vw,66px);line-height:1.14;letter-spacing:-.035em;font-weight:750;
  text-wrap:balance;
}
.lead{margin-top:24px;font-size:17.5px;color:var(--txt-dim);max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero-actions.center{justify-content:center}
.hero-stats{
  display:flex;gap:44px;margin-top:56px;padding-top:30px;
  border-top:1px solid var(--line-soft);
}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats b{
  font-size:30px;font-weight:700;letter-spacing:-.02em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-stats span{font-size:12.5px;color:var(--txt-mute);margin-top:2px;letter-spacing:.02em}

/* 终端 */
.hero-visual{position:relative}
.terminal{
  background:linear-gradient(165deg,rgba(18,24,38,.97),rgba(8,11,19,.99));
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow),0 0 0 1px rgba(94,242,255,.06) inset;
  overflow:hidden;transition:.5s cubic-bezier(.2,.7,.3,1);
}
.terminal:hover{transform:translateY(-5px);border-color:rgba(94,242,255,.24)}
.term-bar{
  display:flex;align-items:center;gap:7px;padding:13px 16px;
  border-bottom:1px solid var(--line-soft);background:rgba(255,255,255,.02);
}
.tl{width:10px;height:10px;border-radius:50%;display:inline-block}
.tl-r{background:#ff5f57}.tl-y{background:#febc2e}.tl-g{background:#28c840}
.term-title{margin-left:12px;font-family:var(--mono);font-size:11.5px;color:var(--txt-mute)}
.term-body{
  padding:22px 22px 30px;font-family:var(--mono);font-size:13px;line-height:2;
  min-height:330px;
}
.term-line{display:flex;gap:9px}
.term-line .arrow{color:var(--cyan);flex:none}
.term-line .txt{color:#c8d4e6;word-break:break-word}
.term-line.out .txt{color:#6f8098}
.term-line.ok .txt{color:#4ade80}
.term-line.warn .txt{color:#fbbf24}
.term-line.dim .txt{color:#5b687c}

.float-card{
  position:absolute;display:flex;align-items:center;gap:11px;
  padding:11px 15px;border-radius:14px;
  background:rgba(16,21,33,.98);border:1px solid var(--line);
  box-shadow:0 16px 40px -18px #000;font-size:12.5px;
  animation:floaty 6s ease-in-out infinite;
}
.float-card b{display:block;font-size:12.5px;font-weight:600;line-height:1.3}
.float-card i{display:block;font-style:normal;font-size:11px;color:var(--txt-mute);line-height:1.4}
.fc-ico{display:grid;place-items:center;color:var(--cyan)}
.fc-ico svg{width:15px;height:15px;display:block}
.fc-1{top:44px;right:-26px;animation-delay:0s}
.fc-2{bottom:56px;left:-34px;animation-delay:-3s}
@keyframes floaty{50%{transform:translateY(-11px)}}

/* 滚动文字条 */
.marquee{
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
  overflow:hidden;padding:16px 0;
  background:rgba(255,255,255,.012);
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
}
.marquee-track{
  display:flex;gap:26px;width:max-content;
  animation:scrollX 34s linear infinite;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;
  color:var(--txt-mute);text-transform:uppercase;
}
@keyframes scrollX{to{transform:translateX(-50%)}}

/* ---------- SECTION ---------- */
.section{padding:120px 0}
.section-dark{background:linear-gradient(180deg,transparent,rgba(255,255,255,.018) 30%,rgba(255,255,255,.018) 70%,transparent)}

/* Bento */
.bento{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
}
.bento>*,.steps>*,.layers>*,.dl-card>*,.cm-grid>*,.timeline>*{min-width:0}
.card{
  position:relative;padding:30px;border-radius:var(--r-lg);
  background:linear-gradient(170deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  border:1px solid var(--line);overflow:hidden;
  transition:.35s cubic-bezier(.2,.7,.3,1);
}
.card:hover{transform:translateY(-5px);border-color:rgba(94,242,255,.3)}
.card-glow{
  position:absolute;width:280px;height:280px;top:-140px;right:-120px;border-radius:50%;
  background:radial-gradient(circle,rgba(94,242,255,.16),transparent 70%);
  opacity:0;transition:.5s;pointer-events:none;
}
.card:hover .card-glow{opacity:1}
.card .ico{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:rgba(94,242,255,.07);border:1px solid rgba(94,242,255,.16);
  margin-bottom:20px;color:var(--cyan);
}
.card .ico svg{width:22px;height:22px;display:block;filter:drop-shadow(0 0 8px rgba(94,242,255,.35))}
.card h3{font-size:17.5px;font-weight:650;letter-spacing:-.01em;margin-bottom:10px}
.card p{font-size:14.2px;color:var(--txt-dim);line-height:1.7}
.card-lg{grid-column:span 2;grid-row:span 1}
.card-wide{grid-column:span 3}

.code-mini{
  margin-top:22px;padding:16px 18px;border-radius:var(--r-md);
  background:rgba(0,0,0,.42);border:1px solid var(--line-soft);
  font-family:var(--mono);font-size:12.3px;line-height:2;color:#8fa2bb;
  overflow-x:auto;white-space:nowrap;
}
.c-m{color:var(--cyan)}
.c-ok{color:#4ade80}

.browser-mini{
  margin-top:22px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line-soft);background:rgba(0,0,0,.34);
}
.bm-bar{
  display:flex;align-items:center;gap:5px;padding:9px 12px;
  border-bottom:1px solid var(--line-soft);background:rgba(255,255,255,.03);
}
.bm-bar i{width:7px;height:7px;border-radius:50%;background:#3a4455}
.bm-bar span{margin-left:8px;font-family:var(--mono);font-size:10.5px;color:var(--txt-mute)}
.bm-body{position:relative;padding:17px;display:flex;flex-direction:column;gap:9px}
.bm-line{height:7px;border-radius:4px;background:linear-gradient(90deg,rgba(94,242,255,.32),rgba(143,107,255,.16))}
.w70{width:70%}.w90{width:90%}.w50{width:50%}
.bm-cursor{
  position:absolute;right:38px;bottom:16px;width:9px;height:9px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 12px var(--cyan);
  animation:cursorMove 4s ease-in-out infinite;
}
@keyframes cursorMove{0%,100%{transform:translate(0,0)}25%{transform:translate(-64px,-26px)}55%{transform:translate(-24px,6px)}80%{transform:translate(-90px,-6px)}}

/* Split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.split>*{min-width:0}
.lead-sm{color:var(--txt-dim);font-size:16px;margin-top:18px}
.lead-sm code{
  background:rgba(94,242,255,.1);color:#9de9f7;padding:2px 7px;border-radius:5px;font-size:13px;
  overflow-wrap:anywhere;word-break:break-word;
}
.checklist{list-style:none;margin:28px 0 34px;display:flex;flex-direction:column;gap:13px}
.checklist li{display:flex;gap:12px;font-size:14.5px;color:var(--txt-dim);line-height:1.6}
.checklist i{
  flex:none;width:19px;height:19px;border-radius:50%;display:grid;place-items:center;
  font-style:normal;font-size:10px;font-weight:700;color:#05070d;margin-top:2px;
  background:var(--grad);
}

.window{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(16,21,34,.96),rgba(7,10,17,.99));
  box-shadow:var(--shadow);
}
.win-bar{
  display:flex;align-items:center;gap:7px;padding:12px 16px;
  border-bottom:1px solid var(--line-soft);background:rgba(255,255,255,.02);
}
.win-bar em{
  font-style:normal;margin-left:10px;font-family:var(--mono);font-size:11px;color:var(--txt-mute);
}
.win-pre{
  margin:0;padding:24px;overflow-x:auto;
  font-family:var(--mono);font-size:12.7px;line-height:2.05;color:#c8d4e6;
}
.win-pre .p{color:var(--cyan)}
.win-pre .cmd{color:#e8edf7}
.win-pre .out{color:#6f8098}
.win-pre .caret{color:var(--cyan);animation:blink 1.1s step-end infinite}
@keyframes blink{50%{opacity:0}}

/* Layers */
.layers{display:grid;grid-template-columns:repeat(7,1fr);gap:12px}
.layer{
  padding:22px 16px;border-radius:var(--r-md);text-align:center;
  border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.012));
  transition:.3s;
}
.layer:hover{border-color:rgba(94,242,255,.35);transform:translateY(-4px)}
.layer b{
  display:block;font-family:var(--mono);font-size:12px;color:var(--cyan);opacity:.8;margin-bottom:9px;
}
.layer span{display:block;font-size:14px;font-weight:600;margin-bottom:4px}
.layer i{display:block;font-style:normal;font-size:11.5px;color:var(--txt-mute);line-height:1.4}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{
  position:relative;padding:32px 28px;border-radius:var(--r-lg);
  border:1px solid var(--line);background:rgba(255,255,255,.025);
  transition:.3s;
}
.step:hover{background:rgba(255,255,255,.055);border-color:rgba(255,255,255,.16)}
.step-n{
  font-family:var(--mono);font-size:13px;font-weight:600;color:var(--cyan);
  display:inline-block;padding:4px 10px;border-radius:100px;
  background:rgba(94,242,255,.09);border:1px solid rgba(94,242,255,.22);margin-bottom:16px;
}
.step h3{font-size:18px;font-weight:650;margin-bottom:10px}
.step p{font-size:14.2px;color:var(--txt-dim)}


/* ---------- 下载区 ---------- */
.hero-meta{
  margin-top:20px;font-size:12.5px;color:var(--txt-mute);letter-spacing:.04em;
}
.dl-section{padding-top:30px}
.dl-card{
  display:block;
  padding:52px;border-radius:32px;border:1px solid var(--line);
  background:
    radial-gradient(ellipse 60% 120% at 0% 0%,rgba(94,242,255,.09),transparent 60%),
    radial-gradient(ellipse 50% 100% at 100% 100%,rgba(143,107,255,.12),transparent 60%),
    rgba(255,255,255,.022);
}
.dl-title{
  font-size:clamp(26px,3.6vw,40px);line-height:1.2;letter-spacing:-.025em;
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.ver-tag{
  font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.04em;
  padding:5px 12px;border-radius:100px;color:#9de9f7;
  background:rgba(94,242,255,.1);border:1px solid rgba(94,242,255,.28);
}
.dl-desc{margin-top:16px;color:var(--txt-dim);font-size:15.5px;max-width:520px}
.dl-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.dl-specs{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  margin-top:38px;padding-top:26px;border-top:1px solid var(--line-soft);
}
.dl-specs dt{font-size:11.5px;color:var(--txt-mute);letter-spacing:.08em;margin-bottom:7px}
.dl-specs dd{font-size:14px;color:var(--txt);font-weight:550}
.dl-hash{
  display:flex;align-items:center;gap:10px;margin-top:24px;padding:11px 14px;min-width:0;
  border-radius:11px;background:rgba(0,0,0,.34);border:1px solid var(--line-soft);
  font-family:var(--mono);font-size:11px;color:var(--txt-mute);
}
.dl-hash code{
  flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#8fa2bb;
}
.copy-btn{
  flex:none;background:rgba(255,255,255,.07);border:1px solid var(--line);color:var(--txt);
  font-size:11.5px;padding:5px 11px;border-radius:8px;cursor:pointer;
  transition:.2s;font-family:var(--font);white-space:nowrap;
}
.copy-btn:hover{background:rgba(94,242,255,.16);border-color:rgba(94,242,255,.42);color:#9de9f7}
.dl-note{margin-top:20px;font-size:12px;color:var(--txt-mute);line-height:1.75}

/* ---------- 群聊 ---------- */
.cm-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.cm-card{
  display:flex;flex-direction:column;gap:16px;padding:26px;border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  transition:.32s cubic-bezier(.2,.7,.3,1);
}
.cm-card:hover{transform:translateY(-5px);border-color:rgba(94,242,255,.3)}
.cm-head{display:flex;align-items:center;gap:12px}
.cm-ico{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;flex:none;
  font-family:var(--mono);font-size:11px;font-weight:700;
}
.cm-qq{background:rgba(18,183,245,.15);color:#4fd1ff;border:1px solid rgba(18,183,245,.3)}
.cm-kook{background:rgba(75,94,247,.15);color:#8b9bff;border:1px solid rgba(75,94,247,.32);font-size:10px}
.cm-head b{display:block;font-size:15px;font-weight:650;line-height:1.35}
.cm-head i{display:block;font-style:normal;font-size:11.5px;color:var(--txt-mute)}
.cm-num{
  font-family:var(--mono);font-size:clamp(23px,2.4vw,30px);font-weight:600;letter-spacing:-.01em;
  line-height:1.25;padding-top:2px;word-break:break-all;
}
.cm-num span{
  display:block;font-family:var(--font);font-size:11px;font-weight:400;
  letter-spacing:.14em;color:var(--txt-mute);margin-top:8px;
}
.cm-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:auto;padding-top:4px}
.cm-actions .copy-btn{padding:8px 16px;font-size:12.5px;border-radius:100px}
.cm-actions .btn{min-height:36px}
.cm-tip{font-size:11.5px;color:var(--txt-mute);line-height:1.7}
.cm-foot{margin-top:30px;text-align:center;font-size:13px;color:var(--txt-mute)}
.cm-foot a{color:#9de9f7;border-bottom:1px solid rgba(157,233,247,.35)}

/* ---------- 更新日志 ---------- */
.timeline{position:relative;padding-left:28px}
.timeline::before{
  content:"";position:absolute;left:5px;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg,rgba(94,242,255,.55),rgba(143,107,255,.08));
}
.tl-item{position:relative;padding-bottom:36px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:6px;width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2px solid var(--cyan);box-shadow:0 0 0 4px rgba(94,242,255,.09);
}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.tl-ver{font-family:var(--mono);font-size:14px;font-weight:600;color:var(--txt)}
.tl-date{font-family:var(--mono);font-size:11.5px;color:var(--txt-mute)}
.tl-badge{
  font-size:10.5px;padding:3px 9px;border-radius:100px;color:#9de9f7;
  background:rgba(94,242,255,.12);border:1px solid rgba(94,242,255,.3);
}
.tl-badge.beta{background:rgba(255,255,255,.06);border-color:var(--line);color:var(--txt-mute)}
.tl-list{list-style:none;display:flex;flex-direction:column;gap:9px}
.tl-list li{position:relative;padding-left:16px;font-size:14px;color:var(--txt-dim);line-height:1.65}
.tl-list li::before{
  content:"";position:absolute;left:2px;top:9px;width:4px;height:4px;border-radius:50%;
  background:rgba(255,255,255,.26);
}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,18px);
  background:rgba(20,26,40,.98);border:1px solid var(--line);color:var(--txt);
  font-size:13.5px;padding:11px 22px;border-radius:100px;z-index:300;
  opacity:0;pointer-events:none;transition:.3s cubic-bezier(.2,.7,.3,1);
  box-shadow:0 18px 44px -18px #000;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* CTA */
.cta-section{padding:40px 0 120px}
.cta-box{
  position:relative;overflow:hidden;text-align:center;
  padding:80px 40px;border-radius:32px;
  border:1px solid var(--line);
  background:
    radial-gradient(ellipse 70% 120% at 50% 0%,rgba(94,242,255,.14),transparent 65%),
    radial-gradient(ellipse 60% 100% at 80% 100%,rgba(143,107,255,.16),transparent 65%),
    rgba(255,255,255,.02);
}
.cta-orb{
  position:absolute;width:340px;height:340px;left:-140px;bottom:-200px;border-radius:50%;
  background:radial-gradient(circle,rgba(59,130,246,.35),transparent 70%);filter:blur(40px);
}
.cta-box h2{font-size:clamp(28px,4.4vw,48px);line-height:1.16;letter-spacing:-.03em}
.cta-box p{color:var(--txt-dim);margin-top:16px;font-size:16px}
.cta-box .hero-actions{margin-top:34px}
.tiny{margin-top:24px !important;font-size:12px !important;color:var(--txt-mute) !important}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:10px}
.faq details{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(255,255,255,.022);overflow:hidden;transition:.25s;
}
.faq details[open]{background:rgba(255,255,255,.045);border-color:rgba(255,255,255,.14)}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:15.5px;font-weight:550;
}
.faq summary::-webkit-details-marker{display:none}
.plus{position:relative;width:13px;height:13px;flex:none}
.plus::before,.plus::after{
  content:"";position:absolute;background:var(--txt-dim);border-radius:2px;transition:.3s;
}
.plus::before{left:0;top:5.6px;width:13px;height:1.8px}
.plus::after{left:5.6px;top:0;width:1.8px;height:13px}
details[open] .plus::after{transform:rotate(90deg);opacity:0}
details[open] .plus::before{background:var(--cyan)}
.faq-body{padding:0 24px 22px;color:var(--txt-dim);font-size:14.3px;line-height:1.75}

/* Footer */
.footer{border-top:1px solid var(--line-soft);padding:60px 0 0;background:rgba(255,255,255,.012)}
.footer-inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.foot-brand .logo-text{font-size:17px;font-weight:700}
.foot-brand p{margin-top:12px;font-size:13.5px;color:var(--txt-mute);line-height:1.7}
.foot-col h4{font-size:13px;font-weight:600;margin-bottom:16px;color:var(--txt)}
.foot-col a{display:block;font-size:13.5px;color:var(--txt-mute);margin-bottom:11px;transition:.2s}
.foot-col a:hover{color:var(--cyan)}
.foot-bottom{
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid var(--line-soft);
  font-size:12.5px;color:var(--txt-mute);
}

/* Section 锚点偏移 */
section[id]{scroll-margin-top:90px}

/* Reveal 动画 */
.reveal{opacity:0;transform:translateY(26px);
  transition:opacity .75s cubic-bezier(.2,.7,.3,1),transform .75s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:56px}
  .hero-visual{max-width:560px}
  .terminal{transform:none}
  .fc-1{right:0}.fc-2{left:0}
  .layers{grid-template-columns:repeat(4,1fr)}
  .bento{grid-template-columns:repeat(2,1fr)}
  .card-lg,.card-wide{grid-column:span 2}
  .split{grid-template-columns:1fr;gap:48px}
  .dl-card{padding:38px}
  .cm-grid{grid-template-columns:repeat(2,1fr)}
  .dl-specs{grid-template-columns:repeat(2,1fr);gap:20px}
}
@media(max-width:820px){
  .nav-links,.nav-cta{display:none}
  .burger{display:flex;margin-left:auto;position:absolute;right:22px;top:12px;z-index:2}
  .nav.menu-open{
    background:#05070d;
    border-bottom:1px solid var(--line);
  }
  .nav.menu-open .nav-inner{flex-wrap:wrap;row-gap:0;padding-bottom:6px}
  .nav.menu-open .nav-links,
  .nav.menu-open .nav-cta{
    display:flex;flex-direction:column;gap:0;
    flex:0 0 100%;width:100%;margin-left:0;
  }
  .nav.menu-open .nav-links{padding-top:10px}
  .nav.menu-open .nav-links a{
    padding:13px 0;border-bottom:1px solid var(--line-soft);font-size:15px;
  }
  .nav.menu-open .nav-links a::after{display:none}
  .nav.menu-open .nav-cta{padding:16px 0 6px}
  .nav.menu-open .nav-cta .btn{width:100%;justify-content:center}
  .hero{padding-top:120px}
  .hero-stats{gap:28px}
  .hero-stats b{font-size:24px}
  .section{padding:84px 0}
  .sec-head{margin-bottom:40px}
  .steps{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
  .float-card{display:none}
}
@media(max-width:600px){
  .container,.container.narrow{width:calc(100% - 36px)}
  .section{padding:72px 0}
  .sec-head h2{font-size:25px;line-height:1.3}
  .sec-head p{font-size:15px}
  .card{padding:24px}
  .card .ico{width:38px;height:38px;border-radius:11px;font-size:17px;margin-bottom:16px}
  .card p{font-size:13.8px}
  .lead{font-size:15.6px;line-height:1.78}
  .step{padding:26px 22px}
  .layer{padding:18px 12px}
  .dl-section{padding-top:6px}
  .dl-card{padding:26px 22px;border-radius:24px}
  .dl-title{font-size:23px;gap:10px}
  .dl-desc{font-size:14.5px}
  .dl-actions{gap:10px;margin-top:24px}
  .dl-actions .btn{flex:1 1 100%;justify-content:center}
  .dl-specs{margin-top:28px;padding-top:20px;gap:16px}
    .cm-grid{grid-template-columns:1fr}
        .timeline{padding-left:24px}
  .tl-item::before{left:-24px}
  .footer-inner{grid-template-columns:1fr;gap:26px}
  .bento{grid-template-columns:1fr}
  .card-lg,.card-wide{grid-column:span 1}
  .layers{grid-template-columns:1fr;gap:8px}
  .layer{display:flex;align-items:center;gap:14px;text-align:left;padding:14px 18px}
  .layer b{margin-bottom:0;width:24px;flex:none;font-size:11.5px}
  .layer span{margin-bottom:0;font-size:14.5px;flex:none}
  .layer i{margin-left:auto;text-align:right;font-size:11.5px}
  .cta-box{padding:54px 24px;border-radius:24px}
  .hero-actions .btn{flex:1 1 auto;justify-content:center}
  .term-body{font-size:11.5px;padding:18px;min-height:290px}
  .hero-stats{flex-wrap:wrap;gap:20px 32px}
}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 公告弹窗 ----------
   渐变描边思路来自 Uiverse.io by Gianluks90（gradient-border），
   改为本站青紫配色 + 双层面板，避免负 z-index 在 WebView 里掉层。 */
.notice{
  position:fixed;right:18px;bottom:18px;z-index:420;
  width:min(374px,calc(100vw - 36px));
  animation:noticeIn .38s cubic-bezier(.2,.8,.3,1) both;
}
@keyframes noticeIn{
  from{opacity:0;transform:translateY(18px) scale(.97)}
  to{opacity:1;transform:none}
}

.notice-ring{
  width:100%;max-width:372px;padding:1.5px;border-radius:22px;
  background:linear-gradient(115deg,#5ef2ff,#6ea8ff 38%,#a78bfa 70%,#5ef2ff);
  background-size:280% 280%;
  animation:ringFlow 6s ease infinite, boxIn .32s cubic-bezier(.2,.8,.3,1) both;
  box-shadow:0 34px 80px -34px rgba(0,0,0,.95), 0 0 60px -20px rgba(94,242,255,.35);
}
@keyframes ringFlow{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
@keyframes boxIn{from{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:none}}

.notice-box{
  position:relative;padding:24px 24px 20px;border-radius:20.5px;overflow:hidden;
  background:
    radial-gradient(120% 90% at 0% 0%,rgba(94,242,255,.09),transparent 62%),
    radial-gradient(120% 90% at 100% 0%,rgba(143,107,255,.1),transparent 62%),
    #080b13;
}
.notice-box::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.05),transparent 32%);
}

.notice-x{
  position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:9px;
  display:grid;place-items:center;color:var(--txt-mute);transition:.18s;z-index:2;
}
.notice-x svg{width:15px;height:15px}
.notice-x:hover{background:rgba(255,255,255,.08);color:var(--txt)}

.notice-head{display:flex;align-items:center;gap:8px;margin-bottom:14px;position:relative}
.notice-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:11px;letter-spacing:.14em;font-family:var(--mono);
  color:#8dfff6;padding:5px 11px;border-radius:100px;
  background:rgba(94,242,255,.08);
  border:1px solid rgba(94,242,255,.22);
}
.notice-dot{
  width:5px;height:5px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 8px rgba(94,242,255,.9);
  animation:readyPulse 2.2s infinite;
}
@keyframes readyPulse{0%,100%{opacity:1}50%{opacity:.35}}

.notice-text{
  position:relative;font-size:14.5px;line-height:1.9;color:#c3cede;
  white-space:pre-wrap;word-break:break-word;
  padding-right:6px;max-height:44vh;overflow-y:auto;
}
.notice-text::-webkit-scrollbar{width:4px}
.notice-text::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:4px}

.notice-foot{
  display:flex;justify-content:flex-end;gap:10px;margin-top:22px;padding-top:16px;
  border-top:1px solid rgba(255,255,255,.07);position:relative;
}
.notice-ok{
  height:40px;padding:0 22px;border-radius:100px;font-size:13.5px;font-weight:600;
  color:#041018;background:linear-gradient(100deg,#5ef2ff,#8f6bff);
  box-shadow:0 10px 26px -12px rgba(94,242,255,.7);
  transition:.2s cubic-bezier(.2,.7,.3,1);
}
.notice-ok:hover{transform:translateY(-1px);box-shadow:0 14px 30px -12px rgba(94,242,255,.85)}
.notice-ok:active{transform:translateY(0)}

@media(max-width:420px){
  .notice{right:12px;bottom:12px;width:calc(100vw - 24px)}
  .notice-box{padding:22px 18px 18px}
  .notice-text{font-size:13.8px;line-height:1.85}
}
@media(prefers-reduced-motion:reduce){
  .notice-ring{animation:none}
  .notice-dot{animation:none}
}

/* ---------- 保活模块 ---------- */
.ka-section{padding:0 0 90px}
.ka-card{
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  padding:28px 30px;border-radius:22px;
  border:1px solid var(--line);
  background:
    radial-gradient(ellipse 60% 140% at 0% 0%,rgba(94,242,255,.08),transparent 60%),
    radial-gradient(ellipse 50% 120% at 100% 100%,rgba(143,107,255,.1),transparent 60%),
    rgba(255,255,255,.022);
}
.ka-info{flex:1;min-width:220px}
.ka-info .eyebrow{margin-bottom:8px}
.ka-info h3{font-size:19px;letter-spacing:-.01em}
.ka-info p{font-size:13.5px;color:var(--txt-dim);margin-top:7px;line-height:1.7}
.ka-card .btn{flex:none}
@media(max-width:600px){
  .ka-section{padding-bottom:64px}
  .ka-card{padding:22px;gap:16px}
  .ka-card .btn{width:100%}
}

/* 公告：称呼与昵称输入 */
.notice-hello{
  font-size:13px;color:#8dfff6;margin-bottom:10px;letter-spacing:.01em;
}
.notice-name{margin-top:16px}
.notice-name input{
  width:100%;height:42px;padding:0 14px;border-radius:11px;font-size:14px;
  background:rgba(0,0,0,.32);border:1px solid rgba(255,255,255,.1);color:var(--txt);
  outline:none;transition:.2s;
}
.notice-name input::placeholder{color:#5b687c;font-size:13px}
.notice-name input:focus{border-color:rgba(94,242,255,.45);box-shadow:0 0 0 3px rgba(94,242,255,.08)}