/* 中文注释：Atlantisfly 全站共享样式，首页与合规内容页统一使用。 */
:root{
  --bg:#050b14;
  --bg-soft:#07111f;
  --panel:#0b1728;
  --panel-2:#10233a;
  --text:#eef7ff;
  --muted:#9ab0c7;
  --muted-2:#c0d2e4;
  --line:rgba(125,211,252,.18);
  --cyan:#22d3ee;
  --blue:#3b82f6;
  --violet:#8b5cf6;
  --green:#20e3b2;
  --orange:#ff8a2a;
  --gold:#ffd166;
  --danger:#ff5f72;
  --radius:18px;
  --max:1180px;
  --shadow:0 26px 80px rgba(0,0,0,.34);
  --ease:cubic-bezier(.2,.8,.2,1);
}

/* 中文注释：基础排版、背景和可访问性处理。 */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100%;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 12% -8%, rgba(34,211,238,.22), transparent 30%),
    radial-gradient(circle at 88% 8%, rgba(139,92,246,.18), transparent 32%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 48%,#091321 100%);
  line-height:1.65;
  overflow-x:hidden;
}
body:before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(125,211,252,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125,211,252,.055) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(to bottom, rgba(0,0,0,.85), transparent 86%);
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
.wrap{width:min(var(--max), calc(100% - 36px));margin:0 auto}
.skip-link{position:absolute;left:-999px;top:auto}
.skip-link:focus{left:18px;top:18px;z-index:300;background:#fff;color:#07101e;padding:10px 12px;border-radius:10px}

/* 中文注释：全站顶部导航，兼顾移动端换行和内部链接抓取。 */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  border-bottom:1px solid rgba(148,163,184,.14);
  background:rgba(5,11,20,.78);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;min-width:180px}
.brand img{width:42px;height:42px;border-radius:13px;background:#fff;padding:6px;box-shadow:0 14px 36px rgba(34,211,238,.22)}
.brand strong{display:block;font-size:16px;letter-spacing:.2px}
.brand span{display:block;color:var(--muted);font-size:12px;margin-top:-2px}
.menu{display:flex;align-items:center;gap:6px}
.menu a{padding:9px 10px;border-radius:999px;color:#c9d8e8;font-size:14px}
.menu a:hover,.menu a[aria-current="page"]{background:rgba(125,211,252,.10);color:#fff}
.nav-actions{display:flex;align-items:center;gap:10px}

/* 中文注释：按钮系统区分主要转化、次要入口和文本按钮。 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:10px 16px;
  border-radius:999px;
  border:1px solid rgba(148,163,184,.24);
  background:rgba(15,32,54,.76);
  color:#eaf7ff;
  font-weight:800;
  font-size:14px;
  box-shadow:0 14px 34px rgba(0,0,0,.20);
  transition:transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
  white-space:nowrap;
  cursor:pointer;
}
.btn:hover{transform:translateY(-1px);border-color:rgba(34,211,238,.45);background:rgba(21,43,72,.92)}
.btn.primary{
  color:#08111f;
  border-color:transparent;
  background:linear-gradient(135deg,var(--orange),var(--gold));
  box-shadow:0 20px 50px rgba(255,138,42,.26);
}
.btn.primary:hover{background:linear-gradient(135deg,#ff9b43,#ffe08a)}
.btn.link{border:none;background:transparent;box-shadow:none;color:#9ff6ff;padding:0;min-height:auto}

/* 中文注释：首页首屏采用网络控制台视觉，强化 VPN 加速器属性。 */
.hero{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) 460px;
  gap:34px;
  align-items:center;
  padding:74px 0 44px;
}
.hero-copy{position:relative;z-index:2}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:#b9f5ff;
  border:1px solid rgba(34,211,238,.24);
  background:rgba(34,211,238,.08);
  padding:8px 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:800;
}
.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 24px var(--green)}
h1{margin:18px 0 16px;font-size:clamp(40px, 6vw, 74px);line-height:1.04;letter-spacing:0}
.hero-lead{max-width:680px;margin:0 0 24px;color:#c8d9ea;font-size:18px}
.hero-lead strong{color:#fff}
.price{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  margin-bottom:20px;
  padding:10px 14px;
  border-radius:14px;
  border:1px solid rgba(255,138,42,.26);
  background:rgba(255,138,42,.10);
  color:#ffd7ad;
  font-weight:900;
}
.price b{font-size:28px;color:#fff}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:4px 0 22px}
.trust-row{display:flex;gap:10px;flex-wrap:wrap;color:#b8c9da;font-size:13px}
.trust-row span{border:1px solid rgba(148,163,184,.18);background:rgba(255,255,255,.045);padding:7px 10px;border-radius:999px}

/* 中文注释：纯 CSS 网络视觉，避免引入重型图片或框架。 */
.network-panel{
  position:relative;
  min-height:520px;
  border:1px solid rgba(125,211,252,.22);
  border-radius:28px;
  overflow:hidden;
  background:
    radial-gradient(circle at 30% 20%, rgba(34,211,238,.22), transparent 34%),
    radial-gradient(circle at 78% 70%, rgba(139,92,246,.22), transparent 36%),
    linear-gradient(145deg, rgba(15,32,54,.92), rgba(5,11,20,.92));
  box-shadow:var(--shadow);
}
.network-panel:before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(rgba(125,211,252,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125,211,252,.08) 1px, transparent 1px);
  background-size:32px 32px;
  opacity:.7;
}
.orbit{
  position:absolute;
  width:290px;
  height:290px;
  border:1px solid rgba(34,211,238,.26);
  border-radius:50%;
  left:50%;
  top:47%;
  transform:translate(-50%,-50%);
  box-shadow:inset 0 0 40px rgba(34,211,238,.08),0 0 60px rgba(34,211,238,.08);
}
.orbit:before,.orbit:after{content:"";position:absolute;inset:38px;border-radius:50%;border:1px dashed rgba(255,255,255,.16)}
.orbit:after{inset:82px;border-style:solid;border-color:rgba(32,227,178,.30)}
.core{
  position:absolute;
  left:50%;
  top:47%;
  transform:translate(-50%,-50%);
  width:132px;
  height:132px;
  border-radius:32px;
  display:grid;
  place-items:center;
  text-align:center;
  background:linear-gradient(145deg, rgba(34,211,238,.22), rgba(139,92,246,.20));
  border:1px solid rgba(184,244,255,.34);
  box-shadow:0 0 58px rgba(34,211,238,.30);
  font-weight:900;
}
.node{
  position:absolute;
  width:72px;
  min-height:72px;
  display:grid;
  place-items:center;
  text-align:center;
  padding:8px;
  border-radius:20px;
  border:1px solid rgba(125,211,252,.26);
  background:rgba(8,17,31,.78);
  color:#dffbff;
  font-size:12px;
  font-weight:800;
  box-shadow:0 18px 44px rgba(0,0,0,.22);
}
.node:before{content:"";width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 18px var(--green);margin-bottom:3px}
.n1{left:38px;top:80px}.n2{right:42px;top:88px}.n3{left:34px;bottom:100px}.n4{right:38px;bottom:92px}.n5{left:50%;bottom:34px;transform:translateX(-50%)}
.stat-card{position:absolute;left:22px;right:22px;bottom:22px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat{border:1px solid rgba(148,163,184,.18);border-radius:16px;background:rgba(5,11,20,.68);padding:12px}
.stat small{display:block;color:var(--muted);font-size:12px}
.stat b{display:block;margin-top:3px;font-size:18px}

/* 中文注释：内容区、卡片、列表和页面标题。 */
section{padding:48px 0}
.section-head{max-width:780px;margin-bottom:20px}
.section-head h2{margin:0 0 10px;font-size:30px;line-height:1.2}
.section-head p{margin:0;color:var(--muted)}
.page-hero{padding:54px 0 28px}
.page-hero h1{font-size:clamp(36px,5vw,58px)}
.page-hero p{max-width:820px;color:#c8d9ea;font-size:18px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.card{
  position:relative;
  overflow:hidden;
  border:1px solid rgba(125,211,252,.16);
  border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(15,32,54,.78),rgba(7,16,30,.82));
  box-shadow:0 18px 46px rgba(0,0,0,.18);
  padding:22px;
}
.card:before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg, rgba(34,211,238,.10), transparent 42%, rgba(255,138,42,.06));
  pointer-events:none;
}
.card > *{position:relative}
.card h2,.card h3{margin-top:0}
.card h3{margin-bottom:8px;font-size:18px}
.card p,.card li{color:#a9bed3;font-size:15px}
.icon{width:38px;height:38px;display:grid;place-items:center;border-radius:13px;margin-bottom:14px;background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.22);color:#9ff6ff;font-weight:900}
.list{margin:14px 0 0;padding:0;list-style:none}
.list li{display:flex;gap:10px;margin:10px 0;color:#b9cbe0}
.list li:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 16px rgba(32,227,178,.85);margin-top:10px;flex:0 0 auto}
.plans{display:grid;grid-template-columns:1.05fr .95fr;gap:16px;align-items:stretch}
.plan-highlight{border-color:rgba(255,138,42,.32);background:linear-gradient(180deg,rgba(255,138,42,.13),rgba(15,32,54,.78))}
.plan-price{font-size:34px;font-weight:950;margin:10px 0;color:#fff}
.plan-price small{font-size:14px;color:#ffd7ad}
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.step{padding:18px;border-radius:var(--radius);border:1px solid rgba(148,163,184,.16);background:rgba(255,255,255,.045)}
.step:before{counter-increment:step;content:"0" counter(step);display:block;color:#7dd3fc;font-weight:950;margin-bottom:8px}
.step h3{margin:0 0 6px;font-size:16px}
.step p{margin:0;color:var(--muted);font-size:14px}
.faq details{border:1px solid rgba(148,163,184,.16);border-radius:16px;background:rgba(255,255,255,.045);padding:16px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:900}
.faq p{margin:10px 0 0;color:var(--muted)}
.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-line{display:flex;flex-direction:column;gap:4px}
.contact-line span{color:var(--muted);font-size:13px}
.contact-line a{color:#9ff6ff;font-weight:900;word-break:break-word}

/* 中文注释：政策页表格和长文内容，便于欧盟隐私条款阅读。 */
.policy-content{padding-bottom:70px}
.policy-content h2{margin:34px 0 10px;font-size:24px}
.policy-content p,.policy-content li{color:#b9cbe0}
.policy-table{width:100%;border-collapse:collapse;margin:16px 0;border:1px solid rgba(125,211,252,.18);border-radius:16px;overflow:hidden}
.policy-table th,.policy-table td{border-bottom:1px solid rgba(125,211,252,.14);padding:13px;text-align:left;vertical-align:top;color:#b9cbe0}
.policy-table th{color:#fff;background:rgba(34,211,238,.08)}
.policy-table tr:last-child td{border-bottom:none}
.notice{border:1px solid rgba(255,138,42,.26);background:rgba(255,138,42,.10);border-radius:16px;padding:14px;color:#ffd7ad}

/* 中文注释：页脚提供重要政策、站点地图和 Cookie 偏好入口。 */
footer{border-top:1px solid rgba(148,163,184,.14);padding:28px 0 42px;color:#8da4bc}
.footer-row{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
.footer-links{display:flex;gap:12px;flex-wrap:wrap}
.footer-links a,.footer-links button{color:#b9f5ff}

/* 中文注释：欧盟合规 Cookie 横幅和偏好弹窗。 */
.cookie-banner{
  position:fixed;
  left:18px;
  right:18px;
  bottom:18px;
  z-index:120;
  max-width:960px;
  margin:auto;
  display:none;
  border:1px solid rgba(125,211,252,.24);
  border-radius:18px;
  background:rgba(8,17,31,.96);
  box-shadow:0 22px 70px rgba(0,0,0,.42);
  padding:16px;
}
.cookie-banner.show{display:block}
.cookie-banner p{margin:0 0 12px;color:#b9cbe0;font-size:14px}
.cookie-actions{display:flex;gap:10px;flex-wrap:wrap}
.modal-backdrop{position:fixed;inset:0;z-index:180;display:none;background:rgba(0,0,0,.64);padding:18px;overflow:auto}
.modal-backdrop.show{display:grid;place-items:center}
.consent-modal{width:min(720px,100%);border:1px solid rgba(125,211,252,.24);border-radius:20px;background:#08111f;box-shadow:0 28px 90px rgba(0,0,0,.55);padding:22px}
.consent-modal h2{margin:0 0 10px}
.consent-option{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;border:1px solid rgba(148,163,184,.16);border-radius:16px;padding:14px;margin:12px 0;background:rgba(255,255,255,.045)}
.consent-option p{margin:4px 0 0;color:var(--muted);font-size:14px}
.switch{position:relative;display:inline-flex;width:54px;height:30px;flex:0 0 auto}
.switch input{opacity:0;width:0;height:0}
.slider{position:absolute;cursor:pointer;inset:0;background:#334155;border-radius:999px;transition:.2s}
.slider:before{content:"";position:absolute;width:22px;height:22px;left:4px;top:4px;border-radius:50%;background:#fff;transition:.2s}
.switch input:checked + .slider{background:linear-gradient(135deg,var(--cyan),var(--green))}
.switch input:checked + .slider:before{transform:translateX(24px)}
.switch input:disabled + .slider{opacity:.65;cursor:not-allowed}

/* 中文注释：移动端布局，避免文字和按钮溢出。 */
@media (max-width:980px){
  .nav{align-items:flex-start;flex-wrap:wrap;padding:14px 0}
  .brand{min-width:0}
  .menu{order:3;width:100%;overflow-x:auto;padding-bottom:4px}
  .hero{grid-template-columns:1fr;padding-top:42px}
  .network-panel{min-height:430px}
  .grid,.two,.plans,.contact-box{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .wrap{width:min(100% - 28px, var(--max))}
  .nav-actions{width:100%}
  .nav-actions .btn{flex:1}
  .hero-actions .btn{width:100%}
  .network-panel{min-height:390px;border-radius:22px}
  .node{width:62px;min-height:62px;font-size:11px}
  .stat-card{grid-template-columns:1fr;position:relative;left:auto;right:auto;bottom:auto;margin:270px 14px 14px}
  .steps{grid-template-columns:1fr}
  section{padding:38px 0}
  .section-head h2{font-size:26px}
  .policy-table{display:block;overflow-x:auto}
  .cookie-actions .btn{flex:1}
}