/* ==========================================================
   归一软件工作室 · 科技感主题（深空蓝 / 赛博青 / 玻璃拟态）
   纯 CSS 实现，无图片；全站共享，一处改版全站生效
   ========================================================== */
:root {
  --fg: #e8eef7;
  --fg-muted: #97a3b8;
  --bg: #0a1020;
  --bg-soft: #111a2e;
  --panel: rgba(255, 255, 255, .06);
  --panel-2: rgba(255, 255, 255, .09);
  --border: rgba(148, 163, 184, .18);
  --border-strong: rgba(56, 189, 248, .5);
  --primary: #38bdf8;
  --primary-2: #3b82f6;
  --primary-3: #818cf8;
  --primary-hover: #7dd3fc;
  --primary-dim: rgba(56, 189, 248, .1);
  --danger: #fb7185;
  --ok: #34d399;
  --grad: linear-gradient(135deg, #38bdf8 0%, #3b82f6 55%, #818cf8 100%);
  --radius: 12px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--fg);
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(59, 130, 246, .10), transparent 60%),
    radial-gradient(700px 500px at 10% 0%, rgba(129, 140, 248, .07), transparent 55%),
    var(--bg);
  background-attachment: fixed;
  line-height: 1.6;
  font-size: 15px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color-scheme: dark;
}
/* 极淡网格底纹，几乎不可见，仅作质感点缀 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, .025) 1px, transparent 1px);
  background-size: 48px 48px;
}
header, main, footer { position: relative; z-index: 1; }

::selection { background: rgba(56, 189, 248, .25); color: #fff; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(56, 189, 248, .2); border-radius: 8px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: rgba(56, 189, 248, .35); }

.container { max-width: 1000px; margin: 0 auto; padding: 0 20px; }
.center { text-align: center; }
.muted { color: var(--fg-muted); font-size: 13px; }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace; }
code { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; }

/* 顶部导航（毛玻璃） */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(10, 16, 32, .8);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: .5px;
  text-decoration: none;
  position: relative;
}
.brand-mark {
  width: 38px; height: 38px;
  display: inline-block;
  flex-shrink: 0;
  transition: transform .25s ease;
}
.brand:hover .brand-mark {
  transform: rotate(45deg);
}
.brand-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand::after {
  content: "";
  position: absolute;
  left: 48px; right: 0; bottom: -2px;
  height: 1px;
  background: var(--grad);
  opacity: .4;
}
.nav-links a {
  color: var(--fg-muted);
  text-decoration: none;
  margin-left: 20px;
  font-size: 14px;
  position: relative;
  transition: color .15s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transition: transform .2s ease;
}
.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { transform: scaleX(1); }

/* 三段式导航：品牌居左、主菜单正中、登录/注册最右 */
.nav { position: relative; }
.nav-center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.nav-center a:first-child { margin-left: 0; }
.nav-auth { margin-left: auto; }

/* 主区域（flex:1 保证页脚始终贴底） */
main { flex: 1 0 auto; width: 100%; }
main.container { padding: 36px 20px 72px; }
main.container > * { animation: fadeUp .5s ease both; }
main.container > *:nth-child(2) { animation-delay: .06s; }
main.container > *:nth-child(3) { animation-delay: .12s; }
main.container > *:nth-child(4) { animation-delay: .18s; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
h1 { font-size: 28px; margin: 0 0 16px; letter-spacing: .3px; }
h2 { font-size: 21px; margin: 34px 0 14px; letter-spacing: .3px; }
h3 { font-size: 16px; margin: 0 0 8px; }
a { color: var(--primary); text-decoration: none; transition: color .15s; }
a:hover { color: var(--primary-hover); }
hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }

/* 首页 hero */
.hero {
  text-align: center;
  padding: 96px 0 76px;
  margin-bottom: 48px;
  position: relative;
  overflow: hidden;
}
.hero h1, .hero .slogan, .hero .quick-entry, .hero .hero-tag { position: relative; z-index: 1; }
/* hero 呼吸光晕（纯 CSS，无图片） */
.hero::before {
  content: "";
  position: absolute;
  left: 50%; top: 44%;
  width: 580px; height: 380px;
  transform: translate(-50%, -50%);
  background: radial-gradient(closest-side, rgba(56,189,248,.16), rgba(129,140,248,.06) 55%, transparent 72%);
  filter: blur(8px);
  pointer-events: none;
  animation: breathe 6s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { opacity: .5; transform: translate(-50%, -50%) scale(.92); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.06); }
}
.hero::after {
  content: "";
  display: block;
  width: 140px;
  height: 1px;
  margin: 32px auto 0;
  background: var(--grad);
  opacity: .5;
  border-radius: 1px;
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-size: 44px;
  letter-spacing: 4px;
  background: linear-gradient(180deg, #ffffff 20%, #c7e2ff 70%, #7dd3fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 18px;
}
.slogan { color: var(--fg-muted); font-size: 17px; letter-spacing: 2px; }
.quick-entry { margin: 32px 0 0; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* 首页小标签 */
.hero-tag { margin: 0 0 14px; font-size: 12px; letter-spacing: 5px; color: var(--primary); opacity: .85; }

/* 内页页头（产品中心/个性定制/联系我们） */
.page-hero { text-align: center; padding: 64px 0 40px; margin-bottom: 28px; }
.page-hero h1 {
  font-size: 34px; letter-spacing: 3px; margin: 0 0 14px;
  background: linear-gradient(180deg, #ffffff 20%, #7dd3fc 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.page-hero .slogan { font-size: 15px; letter-spacing: 1px; margin: 0; }

/* 区块标题 */
.section-head { margin-bottom: 18px; }
.section-head h2 { margin: 0 0 4px; }
.section-head .muted { margin: 0; }
.row-between { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.more-link { font-size: 13px; white-space: nowrap; }

/* 特性卡片 */
.feature-card p { margin: 8px 0 0; }
.feature-index {
  font-size: 12px; letter-spacing: 1px;
  color: var(--primary);
  background: var(--primary-dim);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 2px 8px;
}
.feature-card h3 { display: flex; align-items: center; gap: 10px; }

/* 流程步骤 */
.step-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 8px; }
.step {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 18px;
  background: var(--panel);
}
.step-num {
  display: inline-flex;
  width: 30px; height: 30px;
  border-radius: 50%;
  align-items: center; justify-content: center;
  background: var(--grad);
  color: #03131c;
  font-weight: 700;
  margin-bottom: 12px;
}
.step h3 { margin: 0 0 6px; }
.step p { margin: 0; }

/* CTA 横幅 */
.cta-band {
  margin: 56px 0 8px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 44px 24px;
  background:
    radial-gradient(500px 200px at 50% 0%, rgba(56,189,248,.10), transparent 70%),
    linear-gradient(165deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
}
.cta-band h2 { margin: 0 0 8px; }
.cta-band .muted { margin: 0; }
.cta-band .quick-entry { margin-top: 24px; }

/* 联系我们卡片 */
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.contact-card p:not(.muted) { margin: 12px 0 0; }
@media (max-width: 760px) {
  .step-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

/* 卡片网格（玻璃面板） */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.card {
  display: block;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  text-decoration: none;
  color: var(--fg);
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.025));
  position: relative;
  overflow: hidden;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 16px; right: 16px;
  height: 1px;
  background: var(--grad);
  opacity: 0;
  transition: opacity .2s;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: 0 12px 36px -18px rgba(56, 189, 248, .25);
}
.card:hover::before { opacity: .6; }
.card .ver {
  font-size: 12px;
  color: var(--fg-muted);
  font-weight: 400;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 9px;
  margin-left: 4px;
}
.card .price { margin-top: 10px; color: var(--primary); font-weight: 600; }
.empty { color: var(--fg-muted); padding: 28px; text-align: center; border: 1px dashed var(--border); border-radius: var(--radius); }

/* 详情页 */
.detail .plans { display: flex; gap: 12px; margin: 18px 0; flex-wrap: wrap; }
.plan {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 22px;
  min-width: 130px;
  background: var(--panel);
}
.plan .price { font-size: 22px; font-weight: 700; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.actions { display: flex; gap: 12px; margin: 22px 0; flex-wrap: wrap; }
.markdown { margin-top: 26px; white-space: pre-wrap; color: var(--fg-muted); }

/* 表单 / 登录注册面板 */
.auth {
  max-width: 430px;
  margin: 30px auto;
  padding: 34px 32px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(165deg, rgba(255,255,255,.07), rgba(255,255,255,.03));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 20px 60px -30px rgba(0, 0, 0, .6), inset 0 1px 0 rgba(255,255,255,.06);
}
.auth h1 { text-align: center; margin-bottom: 22px; font-size: 24px; letter-spacing: 4px; }
.form { display: flex; flex-direction: column; gap: 15px; }
.form label { display: flex; flex-direction: column; gap: 7px; font-size: 13px; color: var(--fg-muted); }
.form input, .form textarea, .form select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  font-size: 15px;
  font-family: inherit;
  color: var(--fg);
  background: rgba(10, 16, 32, .8);
  transition: border-color .15s, box-shadow .15s;
}
.form input::placeholder, .form textarea::placeholder { color: #64748b; }
.form select option { background: #111a2e; color: var(--fg); }
.form input:focus, .form textarea:focus, .form select:focus {
  outline: none;
  border-color: var(--border-strong);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, .12);
}
.form textarea { resize: vertical; }
.form-error { font-size: 13px; margin: 0; }
.row { display: flex; gap: 12px; }
.row label { flex: 1; }

/* APK 管理：双栏布局 */
.apps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 18px;
}
.apps-col {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px 26px;
}
.apps-col h2 { margin: 0 0 6px; font-size: 17px; }
.apps-col .muted { margin: 0 0 16px; line-height: 1.7; }
@media (max-width: 720px) {
  .apps-grid { grid-template-columns: 1fr; }
}

/* 按钮 */
.btn {
  display: inline-block;
  padding: 9px 20px;
  border: 1px solid rgba(148, 163, 184, .3);
  border-radius: 9px;
  background: rgba(255, 255, 255, .03);
  color: var(--fg);
  text-decoration: none;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  transition: all .18s ease;
  text-align: center;
}
.btn:hover { border-color: var(--border-strong); color: var(--primary); background: var(--primary-dim); }
.btn:active { transform: scale(.97); }
.btn.primary {
  background: var(--grad);
  color: #03131c;
  font-weight: 600;
  border: none;
  box-shadow: 0 6px 20px -10px rgba(56, 189, 248, .5);
}
.btn.primary:hover { color: #03131c; filter: brightness(1.08); box-shadow: 0 8px 26px -10px rgba(56, 189, 248, .6); }
.btn.block { display: block; width: 100%; }
.btn.sm { padding: 4px 11px; font-size: 12px; border-radius: 7px; }
.btn.danger { color: var(--danger); border-color: rgba(251, 113, 133, .4); }
.btn.danger:hover { border-color: var(--danger); background: rgba(251, 113, 133, .1); color: var(--danger); }
.btn:disabled { opacity: .6; cursor: not-allowed; }

/* 表格（横向分隔线的现代风格） */
.table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.table th, .table td {
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 10px 13px;
  text-align: left;
  vertical-align: top;
}
.table th {
  background: rgba(56, 189, 248, .06);
  font-weight: 600;
  font-size: 13px;
  color: var(--primary);
  letter-spacing: .5px;
  white-space: nowrap;
}
.table tr:last-child td { border-bottom: none; }
.table tbody tr, .table tr { transition: background .12s; }
.table tr:hover td { background: rgba(56, 189, 248, .05); }
.inline { display: inline-flex; gap: 6px; align-items: center; }

/* 状态徽标 */
.badge {
  display: inline-block;
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 999px;
  line-height: 1.6;
  white-space: nowrap;
}
.badge.on {
  color: var(--ok);
  background: rgba(52, 211, 153, .12);
  border: 1px solid rgba(52, 211, 153, .4);
}
.badge.off {
  color: var(--danger);
  background: rgba(251, 113, 133, .1);
  border: 1px solid rgba(251, 113, 133, .38);
}
.error { color: var(--danger); font-size: 13px; }

/* 授权码框 */
.license-box {
  background: rgba(56, 189, 248, .06);
  border: 1px dashed rgba(56, 189, 248, .45);
  padding: 18px;
  border-radius: var(--radius);
  margin: 18px 0;
  word-break: break-all;
  text-align: center;
}
.license-box code {
  font-size: 19px;
  letter-spacing: 2px;
  color: var(--primary);
}

/* 二维码：保留白底保证可扫 */
.qr {
  margin: 18px 0;
  padding: 10px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  max-width: 240px;
}

/* 统计卡 */
.stats .card { text-align: center; }
.stats .num {
  font-size: 30px;
  font-weight: 700;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 4px 0;
}
.stats small { color: var(--fg-muted); font-size: 12px; }

/* 页脚（固定贴底：内容不足一屏时也在视口最下方） */
.site-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  padding: 22px 0 26px;
  text-align: center;
  color: var(--fg-muted);
  font-size: 13px;
  background: rgba(10, 16, 32, .6);
}
.site-footer p { margin: 3px 0; }
.site-footer .footer-brand { font-size: 14px; letter-spacing: .5px; color: var(--fg); }
.site-footer .footer-slogan { font-size: 12px; letter-spacing: 1px; }
.site-footer .beian a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
}
.site-footer .beian a:hover { color: var(--primary); }
.site-footer .beian a + a { margin-left: 12px; }

/* 全局提示条 */
.flash {
  padding: 11px 15px;
  margin-bottom: 16px;
  border-radius: var(--radius);
  font-size: 14px;
  border: 1px solid transparent;
}
.flash-error { background: rgba(251, 113, 133, .09); border-color: rgba(251, 113, 133, .35); color: #fda4af; }
.flash-success { background: rgba(52, 211, 153, .09); border-color: rgba(52, 211, 153, .35); color: #6ee7b7; }

/* 后台二级导航 */
.admin-subnav {
  border-top: 1px solid var(--border);
  background: rgba(17, 26, 46, .7);
}
.admin-subnav .container {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding-top: 9px;
  padding-bottom: 9px;
}
.admin-subnav a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 13px;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: all .15s;
}
.admin-subnav a:hover { color: var(--primary); border-color: var(--border); background: var(--primary-dim); }
.admin-subnav a.active {
  color: #03131c;
  background: var(--grad);
  font-weight: 600;
  box-shadow: 0 4px 14px -6px rgba(56, 189, 248, .4);
}

/* 响应式 */
@media (max-width: 600px) {
  .nav { height: auto; flex-direction: column; gap: 10px; padding: 12px 20px; }
  .nav-links { display: flex; flex-wrap: wrap; justify-content: center; }
  .nav-links a { margin: 0 10px; }
  .nav-center { position: static; transform: none; }
  .nav-center a:first-child { margin-left: 10px; }
  .nav-auth { margin-left: 0; }
  h1 { font-size: 22px; }
  .hero { padding: 36px 0 30px; }
  .hero h1 { font-size: 27px; letter-spacing: 1px; }
  .auth { margin: 14px; padding: 26px 20px; }
  .row { flex-direction: column; }
  .table { display: block; overflow-x: auto; }
}

/* 尊重系统"减少动态效果"设置 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}