/* ===========================================================================
   GifMotion3D
   =========================================================================== */
:root{
  --bg:#04020c;
  --bg-2:#0a0420;
  --panel:rgba(15,7,38,.55);
  --panel-solid:#0b0420;
  --card:rgba(18,9,44,.52);
  --ink:#eafcff;
  --muted:#9d8fce;
  --line:rgba(0,240,255,.20);
  --line-soft:rgba(0,240,255,.10);
  /* cyberpunk neon palette */
  --cyan:#00f0ff;
  --magenta:#ff2bd6;
  --violet:#b026ff;
  --yellow:#d6ff00;
  --pink:#ff007a;
  --green:#39ff9e;
  --primary:var(--cyan);
  --primary-2:var(--magenta);
  --primary-ink:#04020c;
  --grad:linear-gradient(120deg,var(--cyan),var(--violet) 50%,var(--magenta));
  --grad-2:linear-gradient(120deg,var(--magenta),var(--violet) 50%,var(--cyan));
  --grad-soft:linear-gradient(120deg,rgba(0,240,255,.16),rgba(176,38,255,.16));
  --glow-cyan:0 0 8px rgba(0,240,255,.7), 0 0 22px rgba(0,240,255,.45);
  --glow-mag:0 0 8px rgba(255,43,214,.7), 0 0 22px rgba(255,43,214,.45);
  --glow:var(--glow-cyan);
  --radius:14px;
  --radius-sm:9px;
  --shadow:0 22px 60px rgba(0,0,0,.65);
  --mono:'JetBrains Mono',ui-monospace,'SFMono-Regular',Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  --maxw:1180px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--sans);
  background:var(--bg); color:var(--ink); line-height:1.65;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
  min-height:100vh;
}
a{color:inherit; text-decoration:none}
img{max-width:100%}
.container{max-width:var(--maxw); margin:0 auto; padding:0 22px}
.muted{color:var(--muted)}
.small{font-size:13px}
.grad{background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent}

/* ---------- 赛博朋克背景层 ---------- */
.bg-layer{position:fixed; inset:0; z-index:-1; overflow:hidden; pointer-events:none;
  background:
    radial-gradient(1100px 700px at 82% -12%, rgba(176,38,255,.26), transparent 60%),
    radial-gradient(900px 620px at 0% 4%, rgba(0,240,255,.20), transparent 55%),
    radial-gradient(700px 500px at 50% 120%, rgba(255,43,214,.18), transparent 60%),
    linear-gradient(180deg,#04020c, #070318 55%, #04020c);
}
/* 顶部细网格 */
.bg-grid{position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(0,240,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(176,38,255,.05) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(circle at 50% 22%, #000 0%, transparent 75%);
  -webkit-mask-image:radial-gradient(circle at 50% 22%, #000 0%, transparent 75%);
  animation:gridPan 26s linear infinite;
}
@keyframes gridPan{from{background-position:0 0,0 0}to{background-position:48px 96px,96px 48px}}

/* synthwave 透视地平线网格 */
.bg-floor{position:absolute; left:-50%; right:-50%; bottom:0; height:62%; perspective:340px; overflow:hidden; opacity:.55}
.bg-floor::before{content:""; position:absolute; inset:-2px; transform:rotateX(80deg); transform-origin:bottom center;
  background-image:
    linear-gradient(var(--cyan) 1px, transparent 1px),
    linear-gradient(90deg, var(--magenta) 1px, transparent 1px);
  background-size:52px 52px;
  background-position:0 0;
  animation:floorMove 7s linear infinite;
  filter:drop-shadow(0 0 6px rgba(0,240,255,.5));
  mask-image:linear-gradient(to top, #000 5%, transparent 85%);
  -webkit-mask-image:linear-gradient(to top, #000 5%, transparent 85%);
}
@keyframes floorMove{from{background-position:0 0}to{background-position:0 52px}}

/* 漂浮霓虹光球 */
.bg-glow{position:absolute; border-radius:50%; filter:blur(90px); opacity:.5}
.bg-glow-1{width:520px;height:520px; top:-160px; right:-120px; background:radial-gradient(circle,var(--violet),transparent 70%); animation:float1 14s ease-in-out infinite}
.bg-glow-2{width:460px;height:460px; bottom:-180px; left:-120px; background:radial-gradient(circle,var(--cyan),transparent 70%); animation:float2 18s ease-in-out infinite}
@keyframes float1{50%{transform:translate(-50px,50px)}}
@keyframes float2{50%{transform:translate(50px,-40px)}}

/* 噪点 + 扫描线 */
.bg-noise{position:absolute; inset:0; opacity:.05; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.bg-scan{position:absolute; inset:0; opacity:.40;
  background:repeating-linear-gradient(0deg, rgba(0,0,0,.35) 0 1px, transparent 1px 3px);
  mix-blend-mode:multiply;
  animation:scanMove 9s linear infinite;
}
@keyframes scanMove{from{background-position:0 0}to{background-position:0 120px}}

/* 全屏 CRT 扫描线（最上层，不拦截点击） */
.crt{position:fixed; inset:0; z-index:9999; pointer-events:none; opacity:.06;
  background:repeating-linear-gradient(0deg, rgba(255,255,255,.6) 0 1px, transparent 1px 4px);
  mix-blend-mode:overlay;
}

/* ---------- GLITCH 标题（间歇性闪现，保证可读性） ---------- */
.glitch{position:relative; display:inline-block; color:#fff; letter-spacing:-1px; text-shadow:0 0 14px rgba(0,240,255,.45)}
.glitch::before,.glitch::after{content:attr(data-text); position:absolute; top:0; left:0; width:100%; overflow:hidden; clip-path:inset(50% 0 50% 0)}
.glitch::before{left:2px; text-shadow:-2px 0 var(--cyan); animation:glitch-a 3.4s infinite linear}
.glitch::after{left:-2px; text-shadow:2px 0 var(--magenta); animation:glitch-b 3.4s infinite linear}
@keyframes glitch-a{
  0%,88%{clip-path:inset(50% 0 50% 0); transform:translate(0,0)}
  89%{clip-path:inset(8% 0 72% 0); transform:translate(-4px,0)}
  92%{clip-path:inset(62% 0 12% 0); transform:translate(3px,0)}
  95%{clip-path:inset(30% 0 48% 0); transform:translate(-2px,0)}
  97%,100%{clip-path:inset(50% 0 50% 0); transform:translate(0,0)}
}
@keyframes glitch-b{
  0%,88%{clip-path:inset(50% 0 50% 0); transform:translate(0,0)}
  89%{clip-path:inset(70% 0 6% 0); transform:translate(4px,0)}
  92%{clip-path:inset(14% 0 66% 0); transform:translate(-3px,0)}
  95%{clip-path:inset(48% 0 30% 0); transform:translate(2px,0)}
  97%,100%{clip-path:inset(50% 0 50% 0); transform:translate(0,0)}
}

/* ---------- buttons（切角 + 霓虹流动） ---------- */
.btn{display:inline-flex; align-items:center; justify-content:center; gap:8px; padding:11px 22px; border-radius:0; font-weight:800; border:1px solid transparent; cursor:pointer; transition:.22s; font-size:15px; font-family:var(--mono); letter-spacing:.5px; text-transform:uppercase; clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px)}
.btn-lg{padding:15px 32px; font-size:16px}
.btn-sm{padding:8px 15px; font-size:12.5px}
.btn-primary{background:var(--grad); color:var(--primary-ink); box-shadow:var(--glow-cyan); position:relative; overflow:hidden}
.btn-primary:hover{transform:translateY(-2px); box-shadow:0 0 18px rgba(0,240,255,.9), 0 0 42px rgba(176,38,255,.6)}
.btn-primary::after{content:""; position:absolute; inset:0; background:linear-gradient(120deg,transparent,rgba(255,255,255,.55),transparent); transform:translateX(-120%); transition:.6s}
.btn-primary:hover::after{transform:translateX(120%)}
.btn-ghost{background:rgba(0,240,255,.04); border-color:var(--line); color:var(--cyan); backdrop-filter:blur(8px)}
.btn-ghost:hover{border-color:var(--cyan); color:#fff; box-shadow:var(--glow-cyan)}
.linklike{background:none; border:none; color:var(--cyan); cursor:pointer; font:inherit; padding:0; text-decoration:underline; text-underline-offset:3px; font-family:var(--mono)}

/* ---------- header ---------- */
.site-header{position:sticky; top:0; z-index:50; background:rgba(6,3,18,.78); backdrop-filter:blur(14px); border-bottom:1px solid var(--line-soft)}
.site-header::after{content:""; position:absolute; left:0; right:0; bottom:-1px; height:2px; background:var(--grad); opacity:.7; box-shadow:0 0 16px rgba(0,240,255,.6)}
.nav{display:flex; align-items:center; gap:20px; height:66px}
.brand{display:flex; align-items:center; gap:10px; font-weight:800; font-size:19px; letter-spacing:.5px; font-family:var(--mono)}
.brand-mark{display:inline-grid; place-items:center; width:32px; height:32px; background:var(--grad); color:#fff; font-size:18px; clip-path:polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px); box-shadow:var(--glow-mag); animation:spin 9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.brand-name{background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent}
.nav-links{display:flex; gap:4px; margin-left:14px}
.nav-links a{padding:8px 14px; color:var(--muted); font-weight:600; font-size:14px; transition:.18s; position:relative; font-family:var(--mono); letter-spacing:.4px}
.nav-links a:hover{color:var(--cyan)}
.nav-links a.active{color:var(--cyan); text-shadow:0 0 12px rgba(0,240,255,.7)}
.nav-links a.active::after{content:""; position:absolute; left:14px; right:14px; bottom:2px; height:2px; background:var(--grad); box-shadow:var(--glow-cyan)}
.nav-right{display:flex; align-items:center; gap:14px; margin-left:auto}
.lang-switch{display:inline-flex; border:1px solid var(--line); border-radius:0; overflow:hidden; font-family:var(--mono); font-size:13px; font-weight:800; clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px)}
.lang-switch a{padding:6px 14px; color:var(--muted); transition:.18s}
.lang-switch a:hover{color:var(--ink)}
.lang-switch a.active{background:var(--grad); color:var(--primary-ink); text-shadow:none}
.nav-cta{margin-left:0}

/* ---------- hero ---------- */
.hero{padding:74px 0 46px; position:relative}
.hero-inner{display:grid; grid-template-columns:1.05fr .95fr; gap:40px; align-items:center}
.badge{display:inline-flex; align-items:center; gap:8px; padding:6px 15px; background:rgba(0,240,255,.06); border:1px solid var(--line); font-family:var(--mono); font-size:12.5px; color:var(--cyan); letter-spacing:1px; text-transform:uppercase; box-shadow:var(--glow-cyan); clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px)}
.badge::before{content:""; width:7px;height:7px;border-radius:50%;background:var(--green); box-shadow:0 0 10px var(--green); animation:blink 1.4s steps(2) infinite}
@keyframes blink{50%{opacity:.25}}
.hero h1{font-size:54px; line-height:1.06; margin:18px 0 16px}
.lead{font-size:18px; color:var(--muted); max-width:540px}
.hero-actions{display:flex; gap:14px; margin:28px 0 10px; flex-wrap:wrap}
.hero-mini{display:flex; gap:34px; margin-top:20px; font-family:var(--mono)}
.hero-mini div{display:flex; flex-direction:column}
.hero-mini strong{font-size:28px; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; text-shadow:0 0 24px rgba(0,240,255,.4)}
.hero-mini span{font-size:12px; color:var(--muted); letter-spacing:1px; text-transform:uppercase}

.hero-visual{position:relative; height:400px; display:grid; place-items:center}
.orb{position:absolute; width:280px; height:280px; border-radius:50%; background:conic-gradient(from 0deg,var(--cyan),var(--violet),var(--magenta),var(--cyan)); filter:blur(2px); animation:spin 9s linear infinite; opacity:.9; box-shadow:0 0 90px rgba(176,38,255,.55)}
.orb-2{width:170px; height:170px; animation-duration:6s; opacity:.7; filter:blur(1px)}
.phone{position:relative; z-index:2; width:220px; height:220px; background:rgba(8,4,24,.72); backdrop-filter:blur(10px); display:grid; place-items:center; border:1px solid var(--line); box-shadow:0 0 0 1px rgba(0,240,255,.18), 0 0 60px rgba(0,240,255,.3), var(--shadow); animation:bob 3.4s ease-in-out infinite; clip-path:polygon(16px 0,100% 0,100% calc(100% - 16px),calc(100% - 16px) 100%,0 100%,0 16px)}
.phone::before{content:""; position:absolute; inset:8px; border:1px solid rgba(0,240,255,.3); clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px)}
.phone::after{content:""; position:absolute; top:-1px; right:-1px; width:26px;height:26px; border-top:2px solid var(--magenta); border-right:2px solid var(--magenta); filter:drop-shadow(0 0 6px var(--magenta))}
.phone-screen{font-size:100px; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; animation:bob2 3s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(-8px)}50%{transform:translateY(8px)}}
@keyframes bob2{0%,100%{transform:translateY(6px)}50%{transform:translateY(-6px)}}

/* ---------- sections ---------- */
.section{padding:72px 0; position:relative}
.section-alt{background:linear-gradient(180deg,rgba(176,38,255,.06),transparent)}
.section-title{font-size:36px; text-align:center; margin:0 0 10px; letter-spacing:0; font-family:var(--mono); text-transform:uppercase; color:#fff; text-shadow:0 0 18px rgba(0,240,255,.35)}
.section-sub{text-align:center; color:var(--muted); margin:0 0 42px; font-size:16px; font-family:var(--mono)}

/* cards（霓虹 HUD 角标） */
.cards{display:grid; grid-template-columns:repeat(4,1fr); gap:18px}
.card{background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:24px; backdrop-filter:blur(10px); transition:.25s; display:flex; flex-direction:column; gap:10px; position:relative; overflow:hidden; box-shadow:inset 0 0 22px rgba(0,240,255,.05)}
.card::before{content:""; position:absolute; top:0; right:0; width:16px; height:16px; background:linear-gradient(135deg,var(--cyan) 50%,transparent 50%); opacity:.7}
.card::after{content:""; position:absolute; bottom:0; left:0; width:16px; height:16px; background:linear-gradient(-45deg,var(--magenta) 50%,transparent 50%); opacity:.7}
.card:hover{transform:translateY(-6px); box-shadow:var(--shadow), 0 0 26px rgba(0,240,255,.25); border-color:rgba(0,240,255,.5)}
.card-feature{background:linear-gradient(180deg,rgba(0,240,255,.12),rgba(176,38,255,.07))}
.card-ico{font-size:30px; filter:drop-shadow(0 0 10px rgba(0,240,255,.6))}
.card h3{margin:6px 0 0; font-size:18px; color:#fff; font-family:var(--mono); letter-spacing:.3px}
.card p{margin:0; color:var(--muted); font-size:14px; flex:1}
.card-link{color:var(--cyan); font-weight:700; font-size:13px; font-family:var(--mono); letter-spacing:1px; text-transform:uppercase}

/* steps */
.steps{display:grid; grid-template-columns:repeat(3,1fr); gap:20px}
.step{background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:28px; text-align:center; backdrop-filter:blur(10px); position:relative; box-shadow:inset 0 0 22px rgba(176,38,255,.05)}
.step-num{width:48px; height:48px; margin:0 auto 14px; display:grid; place-items:center; font-weight:800; color:#04020c; background:var(--grad); box-shadow:var(--glow-cyan); font-family:var(--mono); clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px)}
.step h3{margin:0 0 6px; color:#fff}
.step p{margin:0; color:var(--muted); font-size:14px}

/* faq */
.faq{max-width:780px; margin:0 auto}
details{border:1px solid var(--line); border-radius:var(--radius-sm); padding:14px 18px; margin-bottom:12px; background:var(--card); backdrop-filter:blur(8px); transition:.2s}
details[open]{border-color:rgba(0,240,255,.5); box-shadow:0 0 22px rgba(0,240,255,.2)}
summary{cursor:pointer; font-weight:600; list-style:none; color:#fff; font-family:var(--mono)}
summary::-webkit-details-marker{display:none}
summary::before{content:"+"; color:var(--cyan); font-weight:800; margin-right:10px; font-family:var(--mono); text-shadow:var(--glow-cyan)}
details[open] summary::before{content:"−"}
details p{color:var(--muted); font-size:14px; margin:10px 0 0}

/* cta */
.cta{padding:74px 0; position:relative; border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft); background:radial-gradient(820px 320px at 50% 0%, rgba(176,38,255,.22), transparent 70%)}
.cta-inner{text-align:center}
.cta h2{font-size:36px; margin:0 0 10px; font-family:var(--mono); text-transform:uppercase; color:#fff; text-shadow:0 0 18px rgba(255,43,214,.4)}
.cta p{margin:0 0 26px; color:var(--muted); font-size:17px; font-family:var(--mono)}
.cta .btn-primary{background:#fff; color:#04020c}
.cta .btn-primary:hover{box-shadow:0 0 40px rgba(255,255,255,.8)}

/* footer */
.site-footer{background:linear-gradient(180deg,#070318,#04020c); color:#aeb6cf; padding:54px 0 24px; border-top:1px solid var(--line-soft); position:relative}
.footer-grid{display:grid; grid-template-columns:2fr 1fr 1fr; gap:30px}
.site-footer .brand{color:#fff}
.footer-grid h4{color:#fff; margin:0 0 14px; font-size:13px; letter-spacing:1.5px; text-transform:uppercase; font-family:var(--mono); font-weight:700}
.footer-grid ul{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:9px}
.footer-grid a{color:#9d8fce; transition:.18s; font-family:var(--mono); font-size:14px}
.footer-grid a:hover{color:var(--cyan); text-shadow:0 0 10px rgba(0,240,255,.6)}
.footer-bottom{border-top:1px solid var(--line-soft); margin-top:30px; padding-top:18px; font-size:13px; font-family:var(--mono); letter-spacing:.5px}

/* ---------- tool pages ---------- */
.tool-page{padding:40px 0 70px; position:relative}
.tool-head{margin-bottom:26px}
.tool-head.center,.center{text-align:center}
.tool-head h1{font-size:36px; margin:0 0 8px; font-family:var(--mono); text-transform:uppercase; color:#fff; text-shadow:0 0 18px rgba(0,240,255,.35)}
.tool-head p{color:var(--muted); margin:0; font-size:16px; font-family:var(--mono)}
.narrow{max-width:680px; margin:0 auto}

.tool-grid{display:grid; grid-template-columns:390px 1fr; gap:26px; align-items:start}
.tool-panel{background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:22px; backdrop-filter:blur(12px); box-shadow:var(--shadow); position:relative}
.tool-panel::before{content:""; position:absolute; top:0; left:0; width:18px; height:18px; border-top:2px solid var(--cyan); border-left:2px solid var(--cyan); filter:drop-shadow(0 0 5px var(--cyan))}
.tool-panel::after{content:""; position:absolute; bottom:0; right:0; width:18px; height:18px; border-bottom:2px solid var(--magenta); border-right:2px solid var(--magenta); filter:drop-shadow(0 0 5px var(--magenta))}
.tool-stage{position:sticky; top:88px}

.dropzone{border:2px dashed var(--line); border-radius:var(--radius); padding:34px 20px; text-align:center; background:rgba(176,38,255,.05); transition:.22s; cursor:pointer; position:relative; overflow:hidden; clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px)}
.dropzone:hover{border-color:var(--cyan); box-shadow:var(--glow-mag)}
.dropzone.drag{border-color:var(--cyan); background:rgba(0,240,255,.10); box-shadow:var(--glow-cyan)}
.dz-ico{font-size:36px; filter:drop-shadow(0 0 12px rgba(0,240,255,.6))}
.dz-inner p{margin:8px 0}

.controls{margin-top:20px; display:flex; flex-direction:column; gap:18px}
.field{display:flex; flex-direction:column; gap:8px}
.field.row{flex-direction:row; gap:12px; flex-wrap:wrap}
.field.row>div{flex:1; min-width:86px}
.field label{font-weight:600; font-size:13px; display:flex; justify-content:space-between; align-items:center; font-family:var(--mono); letter-spacing:.5px; color:#cdd6f5; text-transform:uppercase}
.field .val{color:var(--cyan); font-weight:700; font-family:var(--mono); text-shadow:var(--glow-cyan)}
.field input[type=text],.field input[type=number],.field textarea,.field select{padding:10px 12px; border:1px solid var(--line); border-radius:var(--radius-sm); font:inherit; background:rgba(4,2,12,.7); color:var(--ink); width:100%; transition:.18s; font-family:var(--mono)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none; border-color:var(--cyan); box-shadow:var(--glow-cyan)}
.field textarea{resize:vertical}
.field input[type=color]{width:46px; height:34px; padding:2px; border:1px solid var(--line); border-radius:8px; background:rgba(4,2,12,.7); cursor:pointer}

.preset-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:8px}
.preset-grid button{padding:9px 4px; border:1px solid var(--line); border-radius:var(--radius-sm); background:rgba(4,2,12,.5); cursor:pointer; font-size:12px; color:var(--ink); transition:.15s; font-family:var(--mono); letter-spacing:.3px}
.preset-grid button:hover{border-color:var(--cyan); color:var(--cyan); box-shadow:var(--glow-mag)}
.preset-grid button.active{background:var(--grad); color:#04020c; border-color:transparent; font-weight:800; box-shadow:var(--glow-cyan)}

.filter-grid{display:grid; grid-template-columns:repeat(5,1fr); gap:6px}
.filter-grid button{padding:9px 2px; border:1px solid var(--line); border-radius:var(--radius-sm); background:rgba(4,2,12,.5); cursor:pointer; font-size:11.5px; color:var(--ink); transition:.15s; font-family:var(--mono)}
.filter-grid button:hover{border-color:var(--cyan); color:var(--cyan); box-shadow:var(--glow-mag)}
.filter-grid button.active{border-color:var(--cyan); background:rgba(0,240,255,.14); color:var(--cyan); font-weight:700; box-shadow:var(--glow-cyan)}

.seg{display:inline-flex; border:1px solid var(--line); border-radius:0; overflow:hidden; font-family:var(--mono); font-size:13px; clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px)}
.seg button{padding:8px 16px; border:none; background:rgba(4,2,12,.5); cursor:pointer; font:inherit; color:var(--muted); transition:.15s}
.seg button.active{background:var(--grad); color:#04020c; font-weight:800}

input[type=range]{-webkit-appearance:none; appearance:none; width:100%; height:6px; border-radius:999px; background:linear-gradient(90deg,var(--cyan),var(--magenta)); outline:none; cursor:pointer; box-shadow:0 0 10px rgba(0,240,255,.4)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none; width:18px; height:18px; border-radius:50%; background:#fff; border:2px solid var(--cyan); box-shadow:var(--glow-cyan); cursor:pointer}
input[type=range]::-moz-range-thumb{width:18px; height:18px; border-radius:50%; background:#fff; border:2px solid var(--cyan); box-shadow:var(--glow-cyan); cursor:pointer}
.scale{display:flex; justify-content:space-between; font-size:12px; color:var(--muted); font-family:var(--mono)}

.tool-actions{display:flex; gap:10px; margin-top:4px}
.tool-actions .btn{flex:1}

.progress{margin-top:10px; display:flex; align-items:center; gap:12px}
.progress-bar{height:8px; flex:1; background:rgba(4,2,12,.8); border-radius:999px; overflow:hidden; position:relative; border:1px solid var(--line)}
.progress-bar::after{content:""; position:absolute; inset:0; width:var(--p,0%); background:var(--grad); box-shadow:var(--glow-cyan); transition:width .2s; border-radius:999px}
.progress-text{font-size:13px; color:var(--muted); white-space:nowrap; font-family:var(--mono)}

.stage-canvas-wrap{background:var(--panel-solid); border:1px solid var(--line); border-radius:var(--radius); padding:18px; box-shadow:var(--shadow); display:grid; place-items:center; min-height:320px; position:relative; overflow:hidden;
  background-image:linear-gradient(45deg,rgba(0,240,255,.08) 25%,transparent 25%),linear-gradient(-45deg,rgba(0,240,255,.08) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,rgba(0,240,255,.08) 75%),linear-gradient(-45deg,transparent 75%,rgba(0,240,255,.08) 75%);
  background-size:20px 20px; background-position:0 0,0 10px,10px -10px,-10px 0;
  background-color:var(--panel-solid)}
.stage-canvas-wrap::after{content:""; position:absolute; inset:0; border-radius:inherit; pointer-events:none; box-shadow:inset 0 0 34px rgba(0,240,255,.16)}
#preview{max-width:100%; height:auto; border-radius:10px; image-rendering:auto}
.stage-hint{position:absolute; color:var(--muted); font-size:14px; pointer-events:none; font-family:var(--mono)}

.result{margin-top:16px; text-align:center; background:var(--card); border:1px solid rgba(57,255,158,.4); border-radius:var(--radius); padding:18px; box-shadow:0 0 30px rgba(57,255,158,.2)}
.result .ok{color:var(--green); font-weight:700; margin:0 0 10px; font-family:var(--mono); letter-spacing:1px; text-transform:uppercase}
.result img{max-width:100%; border-radius:10px; margin-bottom:12px; background-image:linear-gradient(45deg,rgba(0,240,255,.08) 25%,transparent 25%),linear-gradient(-45deg,rgba(0,240,255,.08) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,rgba(0,240,255,.08) 75%),linear-gradient(-45deg,transparent 75%,rgba(0,240,255,.08) 75%); background-size:20px 20px; background-position:0 0,0 10px,10px -10px,-10px 0}

/* contact */
.contact-form{background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:30px; backdrop-filter:blur(12px); box-shadow:var(--shadow); display:flex; flex-direction:column; gap:16px; position:relative}
.contact-form::before{content:""; position:absolute; top:0; left:0; width:18px; height:18px; border-top:2px solid var(--cyan); border-left:2px solid var(--cyan); filter:drop-shadow(0 0 5px var(--cyan))}
.form-msg{font-size:14px; min-height:18px; font-family:var(--mono)}
.form-msg.ok{color:var(--green)}
.form-msg.err{color:#ff6b8a}

/* status */
.status-card{background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:24px; backdrop-filter:blur(12px); box-shadow:var(--shadow); position:relative}
.status-row{display:flex; justify-content:space-between; align-items:center; padding:13px 0; border-bottom:1px solid var(--line-soft); font-family:var(--mono); font-size:14px}
.status-row:last-of-type{border-bottom:none}
.tag{padding:4px 14px; border-radius:0; font-size:13px; font-weight:800; font-family:var(--mono); clip-path:polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px)}
.tag-ok{background:rgba(57,255,158,.18); color:var(--green); border:1px solid rgba(57,255,158,.4)}
.tag-err{background:rgba(255,59,92,.18); color:#ff6b8a; border:1px solid rgba(255,59,92,.4)}
code{background:rgba(176,38,255,.18); padding:2px 7px; border-radius:6px; font-size:13px; font-family:var(--mono); color:#cdd6f5}

/* scrollbar + selection */
::selection{background:rgba(255,43,214,.35); color:#fff}
::-webkit-scrollbar{width:11px; height:11px}
::-webkit-scrollbar-track{background:#070318}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--cyan),var(--magenta)); border-radius:999px; border:2px solid #070318}

/* ---------- 法律 / 内容页（legal / articles） ---------- */
.legal-page .tool-head h1 { font-size: 42px; }
.legal-body { max-width: 840px; margin: 0 auto; }
.legal-body .lead { color: #e9f2ff; font-size: 17px; line-height: 1.8; margin: 0 0 8px; }
.legal-body h2 {
  font-size: 22px; margin: 38px 0 12px; color: #fff;
  padding-left: 14px; border-left: 3px solid #00f0ff;
  text-shadow: 0 0 12px rgba(0,240,255,.45);
}
.legal-body p { color: #aeb8da; line-height: 1.9; margin: 0 0 14px; font-size: 15.5px; }
.legal-body ul { color: #aeb8da; line-height: 1.95; padding-left: 22px; margin: 0 0 14px; }
.legal-body ul li { margin-bottom: 7px; }
.legal-body ul li::marker { color: #ff2bd6; }
.legal-updated { color: #7c87ad; font-size: 13px; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; letter-spacing: .5px; margin-bottom: 24px; }

/* ---------- 工具中心 ---------- */
.tools-cats { display: grid; gap: 42px; }
.tools-cat h3 { font-size: 18px; color: #00f0ff; margin: 0 0 18px; text-transform: uppercase; letter-spacing: 2px; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; }
.tools-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.tool-card {
  display: block; text-decoration: none; color: inherit;
  background: rgba(11,4,32,.6); border: 1px solid rgba(0,240,255,.16);
  border-radius: 14px; padding: 26px; position: relative; overflow: hidden;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.tool-card::before, .tool-card::after { content: ''; position: absolute; width: 14px; height: 14px; border: 2px solid #00f0ff; }
.tool-card::before { top: 10px; left: 10px; border-right: 0; border-bottom: 0; }
.tool-card::after { bottom: 10px; right: 10px; border-left: 0; border-top: 0; }
.tool-card:hover { border-color: #00f0ff; transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,240,255,.18); }
.tool-card h3 { color: #fff; margin: 0 0 10px; font-size: 20px; }
.tool-card p { color: #aeb8da; font-size: 14.5px; line-height: 1.7; margin: 0 0 16px; }
.tool-card .card-go { color: #00f0ff; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: 13px; letter-spacing: 1px; }

/* ---------- 指南 / 教程列表 ---------- */
.guide-cats { display: grid; gap: 42px; }
.guide-cat h3 { font-size: 18px; color: #00f0ff; margin: 0 0 18px; text-transform: uppercase; letter-spacing: 2px; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; }
.guide-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.guide-item {
  display: block; text-decoration: none; color: inherit;
  background: linear-gradient(135deg, rgba(176,38,255,.12), rgba(0,240,255,.06));
  border: 1px solid rgba(0,240,255,.16); border-radius: 14px; padding: 26px;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.guide-item:hover { border-color: #ff2bd6; transform: translateY(-4px); box-shadow: 0 12px 40px rgba(255,43,214,.16); }
.guide-item h3 { color: #fff; margin: 0 0 10px; font-size: 19px; }
.guide-item p { color: #aeb8da; font-size: 14.5px; line-height: 1.7; margin: 0 0 14px; }
.guide-item .read { color: #ff2bd6; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: 13px; }

/* ---------- 文章正文 ---------- */
.article-body { max-width: 840px; margin: 0 auto; }
.article-body h2 { font-size: 22px; margin: 34px 0 12px; color: #fff; padding-left: 14px; border-left: 3px solid #ff2bd6; text-shadow: 0 0 12px rgba(255,43,214,.4); }
.article-body p { color: #aeb8da; line-height: 1.9; font-size: 15.5px; margin: 0 0 14px; }
.article-body ul { color: #aeb8da; line-height: 1.95; padding-left: 22px; margin: 0 0 14px; }
.article-body ul li { margin-bottom: 8px; }
.article-body ul li::marker { color: #00f0ff; }
.article-tip { background: rgba(0,240,255,.07); border: 1px solid rgba(0,240,255,.3); border-radius: 12px; padding: 16px 18px; color: #e9f2ff; font-size: 14.5px; margin: 18px 0; }
.article-back { display: inline-block; margin-bottom: 22px; color: #00f0ff; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: 13px; text-decoration: none; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 840px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item { background: rgba(11,4,32,.6); border: 1px solid rgba(0,240,255,.16); border-radius: 12px; overflow: hidden; }
.faq-item summary { cursor: pointer; padding: 18px 22px; font-weight: 600; color: #fff; list-style: none; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; color: #00f0ff; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: 22px; line-height: 1; }
.faq-item[open] summary::after { content: '\2212'; }
.faq-item .faq-a { padding: 0 22px 20px; color: #aeb8da; line-height: 1.85; font-size: 15px; }

/* ---------- HTML 站点地图 ---------- */
.sm-cats { display: grid; gap: 38px; max-width: 1000px; margin: 0 auto; }
.sm-cat h3 { color: #00f0ff; font-size: 18px; margin: 0 0 16px; text-transform: uppercase; letter-spacing: 2px; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; }
.sm-list { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px 22px; }
.sm-list a { color: #aeb8da; text-decoration: none; padding: 10px 14px; border: 1px solid rgba(0,240,255,.16); border-radius: 10px; transition: border-color .2s, color .2s; font-size: 14px; }
.sm-list a:hover { border-color: #00f0ff; color: #fff; }

/* ---------- 内容页响应式 ---------- */
@media (max-width: 760px) {
  .tools-grid, .guide-list, .sm-list { grid-template-columns: 1fr; }
  .legal-page .tool-head h1 { font-size: 30px; }
  .sm-list { grid-template-columns: 1fr; }
}

/* responsive */
@media (max-width:980px){
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{order:-1; height:300px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .tool-grid{grid-template-columns:1fr}
  .tool-stage{position:static}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:42px}
  /* 移动端关闭毛玻璃、改实色背景，消除控制面板发虚模糊 */
  .tool-panel,.contact-form,.status-card{backdrop-filter:none; -webkit-backdrop-filter:none; background:rgba(11,4,32,.95)}
  .tool-panel{padding:18px}
  .preset-grid{grid-template-columns:repeat(3,1fr)}
  .preset-grid button{font-size:13px; padding:11px 4px}
  .filter-grid{grid-template-columns:repeat(4,1fr)}
  .filter-grid button{font-size:13px; padding:11px 2px}
  .field label{font-size:13.5px}
  /* 16px 防止 iOS 聚焦时页面自动缩放 */
  .field input[type=text],.field input[type=number],.field textarea,.field select{font-size:16px}
}
@media (max-width:560px){
  .hero h1{font-size:32px}
  .cards{grid-template-columns:1fr}
  .nav-links{display:none}
  .nav-right{gap:8px}
  .lang-switch a{padding:6px 10px}
  .preset-grid{grid-template-columns:repeat(2,1fr)}
  .filter-grid{grid-template-columns:repeat(3,1fr)}
  .tool-panel{padding:16px}
  .dropzone{padding:24px 14px}
  .dz-ico{font-size:30px}
  .controls{gap:16px}
  .tool-actions{flex-direction:column}
  .tool-actions .btn{width:100%}
}

/* ---------- 可访问性：跳转链接 ---------- */
.skip-link{position:absolute; left:-9999px; top:0; z-index:99999; background:var(--grad); color:#04020c; padding:10px 18px; font-family:var(--mono); font-weight:800}
.skip-link:focus{left:12px; top:12px}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:14px 0 0; font-family:var(--mono); font-size:13px; letter-spacing:.3px}
.breadcrumb ol{list-style:none; display:flex; flex-wrap:wrap; gap:8px; margin:0; padding:0; align-items:center}
.breadcrumb li{display:flex; align-items:center; gap:8px; color:var(--muted)}
.breadcrumb li:not(:last-child)::after{content:"›"; color:var(--cyan); opacity:.7}
.breadcrumb a{color:var(--muted); transition:.18s}
.breadcrumb a:hover{color:var(--cyan); text-shadow:var(--glow-cyan)}
.breadcrumb li:last-child{color:var(--ink)}

/* ---------- 联盟广告位（默认 ADS_ENABLED=false 不渲染） ---------- */
.ad-slot{margin:18px auto; max-width:var(--maxw); padding:0 22px}
.ad-slot--top{padding-top:6px}
.ad-slot__placeholder{border:1px dashed rgba(0,240,255,.4); border-radius:8px; padding:18px; text-align:center; color:var(--muted); font-family:var(--mono); font-size:12px; letter-spacing:1px; text-transform:uppercase; background:rgba(0,240,255,.04)}
.ad-slot--top .ad-slot__placeholder{min-height:90px; display:grid; place-items:center}
.ad-slot--footer{margin-bottom:24px}