/* ============================================================
 *  博纳斯蓝云 — V2Board 前后端分离主题
 *  配色：深海军蓝底 / 品牌蓝主色 / 青绿辅色
 * ============================================================ */

:root {
  --ink: #050b18;
  --ink-2: #08101f;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-2: rgba(255, 255, 255, 0.075);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);

  --text: #e8eef8;
  --muted: #93a3bd;
  --faint: #64748e;

  /* 凹陷区（输入框、按钮组、代码块）*/
  --well: var(--well);
  --well-2: var(--well-2);
  --well-strong: rgba(0, 0, 0, .4);
  --field-bg: rgba(0, 0, 0, .3);
  --field-bg-focus: rgba(0, 0, 0, .45);

  /* 卡片表面 */
  --card-a: rgba(255, 255, 255, .05);
  --card-b: rgba(255, 255, 255, .022);
  --card-shadow: none;

  /* 顶栏 / 底栏 / 吐司 */
  --chrome: rgba(5, 11, 24, .72);
  --chrome-solid: var(--chrome-solid);
  --toast-bg: var(--toast-bg);
  --toast-text: var(--text);

  /* 页面背景 */
  --glow-a: rgba(47, 134, 255, .16);
  --glow-b: rgba(53, 211, 160, .09);
  --grad-top: #071227;
  --grad-bot: #030713;
  --hairline: rgba(255, 255, 255, .018);

  /* 状态提示 */
  --err-bg: rgba(255, 122, 107, .1);
  --err-line: rgba(255, 122, 107, .3);
  --err-text: #ffb4a9;
  --ok-bg: rgba(53, 211, 160, .1);
  --ok-line: rgba(53, 211, 160, .3);
  --ok-text: var(--jade);

  /* 主色取自品牌 logo 的亮蓝与深蓝 */
  --pri: #2f86ff;
  --pri-hi: #62a6ff;
  --pri-lo: #0b57d0;
  --jade: #35d3a0;
  --danger: #ff7a6b;

  --radius: 18px;
  --radius-sm: 12px;
  --maxw: 1080px;
  --nav-h: 64px;

  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

/* 背景：双色光晕 + 等高线纹理 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 520px at 78% -8%, var(--glow-a), transparent 62%),
    radial-gradient(760px 620px at 8% 4%, var(--glow-b), transparent 60%),
    linear-gradient(180deg, var(--grad-top) 0%, var(--ink) 42%, var(--grad-bot) 100%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image: repeating-linear-gradient(
    115deg,
    transparent 0 38px,
    var(--hairline) 38px 39px
  );
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

::selection { background: rgba(47, 134, 255, 0.28); }

:focus-visible {
  outline: 2px solid var(--pri);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------------- 布局 ---------------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

.view { padding: 40px 0 96px; animation: rise .42s cubic-bezier(.22,.85,.3,1) both; }

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

/* ---------------- 顶栏 ---------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--chrome);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 20px; }

.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.14em;
  margin-right: auto;
}
.logo-mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  display: block;
  object-fit: contain;
  background: #fff;
  padding: 2px;
  box-shadow: 0 4px 16px rgba(47, 134, 255, 0.28);
}

.nav-links { display: flex; gap: 4px; }
.nav-links a {
  padding: 7px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  transition: color .18s, background .18s;
}
.nav-links a:hover { color: var(--text); background: var(--surface); }
.nav-links a.on { color: #ffffff; background: var(--pri); font-weight: 600; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: transform .15s, background .18s, border-color .18s, opacity .18s;
}
.btn:hover { background: var(--surface-2); border-color: var(--line-strong); }
.btn:active { transform: scale(.975); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.btn[disabled]:hover { background: var(--surface); }

.btn-pri {
  background: linear-gradient(135deg, var(--pri-hi), var(--pri-lo));
  border-color: transparent;
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 6px 22px -8px rgba(47, 134, 255, 0.7);
}
.btn-pri:hover { background: linear-gradient(135deg, #85bbff, var(--pri)); border-color: transparent; }

.btn-block { width: 100%; }
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-sm { padding: 7px 14px; font-size: 13px; }

/* ---------------- 卡片 ---------------- */
.card {
  background: linear-gradient(180deg, var(--card-a), var(--card-b));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--card-shadow);
}

.eyebrow {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pri);
  font-weight: 600;
  margin-bottom: 12px;
}

.h1 {
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.14;
  font-weight: 750;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.h2 {
  font-size: clamp(21px, 3.4vw, 28px);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
}
.h3 { font-size: 17px; font-weight: 650; margin: 0 0 4px; }
.lead { color: var(--muted); font-size: clamp(14px, 2.2vw, 16px); margin: 0; }
.muted { color: var(--muted); }
.faint { color: var(--faint); font-size: 13px; }

.section-head { margin: 54px 0 20px; }
.section-head:first-of-type { margin-top: 0; }

/* ---------------- 首页 Hero ---------------- */
.hero { padding: 56px 0 12px; position: relative; }
.hero-inner { max-width: 640px; }

/* 签名元素：呼吸信号环 */
.pulse {
  position: absolute;
  right: -60px; top: 10px;
  width: 320px; height: 320px;
  pointer-events: none;
}
.pulse span {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 84px; height: 84px;
  border: 1px solid rgba(47, 134, 255, 0.42);
  border-radius: 50%;
  animation: ring 4.6s cubic-bezier(.2,.6,.35,1) infinite;
}
.pulse span:nth-child(2) { animation-delay: 1.15s; }
.pulse span:nth-child(3) { animation-delay: 2.3s; }
.pulse span:nth-child(4) { animation-delay: 3.45s; }
.pulse-core {
  position: absolute; inset: 0; margin: auto;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--pri);
  box-shadow: 0 0 26px 6px rgba(47, 134, 255, 0.5);
}
@keyframes ring {
  0%   { transform: scale(.55); opacity: 0; }
  18%  { opacity: .85; }
  100% { transform: scale(3.5); opacity: 0; }
}

.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 46px;
}
.stat { padding: 18px 18px 20px; }
.stat-k {
  font-family: var(--mono);
  font-size: 25px;
  font-weight: 600;
  color: var(--pri);
  letter-spacing: -0.01em;
}
.stat-l { font-size: 13.5px; font-weight: 600; margin-top: 2px; }
.stat-d { font-size: 12.5px; color: var(--faint); line-height: 1.5; margin-top: 4px; }

/* ---------------- 三步引导（签名组件） ---------------- */
.import-row { display: flex; flex-wrap: wrap; gap: 8px; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  counter-reset: step;
}
.step {
  position: relative;
  display: flex;
  gap: 14px;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--card-a), var(--card-b));
}
/* 步骤之间的连接线，说明这是一条真实顺序 */
.step:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -14px; top: 38px;
  width: 14px; height: 1px;
  background: var(--line-strong);
}
.step-n {
  flex: 0 0 auto;
  width: 32px; height: 32px;
  border-radius: 10px;
  display: grid; place-items: center;
  font-family: var(--mono);
  font-size: 13px; font-weight: 600;
  color: var(--pri);
  background: rgba(47, 134, 255, .12);
  border: 1px solid rgba(47, 134, 255, .3);
}
.step.done .step-n {
  color: var(--jade);
  background: rgba(53, 211, 160, .13);
  border-color: rgba(53, 211, 160, .34);
}
.step-b { min-width: 0; }
.step-t { font-weight: 650; font-size: 15.5px; }
.step-d { color: var(--muted); font-size: 13px; margin: 3px 0 0; }
.step-b .btn { margin-top: 12px; }

/* ---------------- 下载页 ---------------- */
.dl-card { padding: 22px; }
.dl-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 4px;
}
.dl-os { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; }
.dl-os svg { width: 22px; height: 22px; color: var(--pri); }
.dl-note { color: var(--muted); font-size: 13px; margin: 0 0 16px; }

.build-list { display: grid; gap: 10px; }
.build {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--well);
  transition: border-color .16s, background .16s, transform .16s;
}
.build:hover { border-color: var(--line-strong); background: var(--well-2); }
.build:active { transform: scale(.995); }
.build-b { flex: 1; min-width: 0; }
.build-t { font-weight: 620; font-size: 14.5px; }
.build-d { color: var(--faint); font-size: 12.5px; margin-top: 1px; }
.build .btn { flex: 0 0 auto; pointer-events: none; }
.build .btn svg { width: 15px; height: 15px; }

.login-hint { display: grid; gap: 7px; margin-top: 8px; font-size: 14px; }
.login-hint > div { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.login-hint .faint { min-width: 34px; }
.login-hint b { font-weight: 600; }

.ok-mark {
  width: 54px; height: 54px; margin: 0 auto 16px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 26px; color: var(--jade);
  background: rgba(53, 211, 160, .12);
  border: 1px solid rgba(53, 211, 160, .34);
}
.os-tabs {
  display: flex; gap: 6px;
  overflow-x: auto;
  padding-bottom: 6px;
  margin-bottom: 22px;
  scrollbar-width: none;
}
.os-tabs::-webkit-scrollbar { display: none; }
.os-tab {
  flex: 0 0 auto;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  font-size: 14px;
  cursor: pointer;
  transition: all .18s;
}
.os-tab:hover { color: var(--text); }
.os-tab.on {
  background: var(--pri); color: #ffffff;
  border-color: transparent; font-weight: 650;
}

.app-list { display: grid; gap: 12px; }
.app {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 18px;
}
.app-body { flex: 1; min-width: 0; }
.app-name { display: flex; align-items: center; gap: 8px; font-weight: 650; font-size: 15.5px; }
.app-desc { color: var(--muted); font-size: 13px; margin-top: 1px; }

.tag {
  font-size: 10.5px;
  letter-spacing: .06em;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(53, 211, 160, .16);
  color: var(--jade);
  border: 1px solid rgba(53, 211, 160, .28);
  font-weight: 600;
}
.tag-pri { background: rgba(47, 134, 255,.15); color: var(--pri); border-color: rgba(47, 134, 255,.3); }

.note {
  display: flex; gap: 9px;
  font-size: 13px; color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 2px solid var(--pri);
  border-radius: 10px;
  padding: 11px 14px;
  margin-bottom: 18px;
}

/* ---------------- 套餐 ---------------- */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); gap: 16px; align-items: stretch; }
.plan { display: flex; flex-direction: column; position: relative; }
.plan.hot { border-color: rgba(47, 134, 255, .4); }
.plan.hot::after {
  content: "最受欢迎";
  position: absolute; top: -1px; right: 18px;
  transform: translateY(-50%);
  font-size: 11px; font-weight: 650;
  padding: 3px 11px; border-radius: 999px;
  background: linear-gradient(135deg, var(--pri-hi), var(--pri-lo));
  color: #ffffff;
}
.plan-price { display: flex; align-items: baseline; gap: 4px; margin: 14px 0 6px; }
.plan-price b { font-family: var(--mono); font-size: 34px; font-weight: 600; letter-spacing: -.02em; }
.plan-price .cur { font-size: 17px; color: var(--muted); }
.plan-price .per { font-size: 13px; color: var(--faint); }
.plan-feat { list-style: none; padding: 0; margin: 16px 0 20px; display: grid; gap: 7px; }
.plan-feat li {
  display: flex; gap: 9px;
  font-size: 13.5px; line-height: 1.55;
  color: var(--muted);
  word-break: break-word;
}
.plan-feat li::before { content: "→"; color: var(--pri); flex: 0 0 auto; line-height: 1.55; }
.plan .btn { margin-top: auto; }

.period-pick { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0 4px; }
.chip {
  padding: 6px 11px; border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--well);
  font-size: 12.5px; color: var(--muted);
  white-space: nowrap;
  cursor: pointer; transition: all .16s;
}
.chip:hover { color: var(--text); border-color: var(--line-strong); }
.chip.on { border-color: var(--pri); color: var(--pri); background: rgba(47, 134, 255,.1); font-weight: 600; }

/* ---------------- 表单 ---------------- */
.form-wrap { max-width: 420px; margin: 30px auto 0; }
.field { margin-bottom: 15px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; font-weight: 500; }
.input {
  width: 100%;
  padding: 12px 14px;
  background: var(--field-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  transition: border-color .18s, background .18s;
}
.input::placeholder { color: var(--faint); }
.input:focus {
  outline: none;
  border-color: rgba(47, 134, 255, .55);
  background: var(--field-bg-focus);
}
.input-row { display: flex; gap: 8px; }
.input-row .input { flex: 1; }

.alert {
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  margin-bottom: 15px;
  border: 1px solid;
}
.alert-err { background: var(--err-bg); border-color: var(--err-line); color: var(--err-text); }
.alert-ok  { background: var(--ok-bg); border-color: var(--ok-line); color: var(--ok-text); }

.switch-line { text-align: center; margin-top: 18px; font-size: 13.5px; color: var(--muted); }
.switch-line a { color: var(--pri); border-bottom: 1px solid rgba(47, 134, 255,.35); padding-bottom: 1px; }

/* ---------------- 充值 ---------------- */
.amount-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 10px; margin: 16px 0; }
.amount {
  padding: 15px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--well);
  text-align: center;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 18px;
  transition: all .16s;
}
.amount:hover { border-color: var(--line-strong); }
.amount.on { border-color: var(--pri); background: rgba(47, 134, 255,.11); color: var(--pri); }

.balance-box {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
}
.balance-num {
  font-family: var(--mono);
  font-size: 38px; font-weight: 600;
  color: var(--pri); letter-spacing: -.02em;
}

/* ---------------- 收银台 ---------------- */
.pay-list { display: grid; gap: 10px; margin: 14px 0 20px; }
.pay {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--well);
  cursor: pointer;
  transition: all .16s;
}
.pay:hover { border-color: var(--line-strong); }
.pay.on { border-color: var(--pri); background: rgba(47, 134, 255,.09); }
.pay-icon {
  width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center;
  background: var(--surface-2); font-size: 15px;
}
.pay-name { font-weight: 600; font-size: 14.5px; }

.kv { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; font-size: 14px; border-bottom: 1px dashed var(--line); }
.kv:last-child { border-bottom: 0; }
.kv dt { color: var(--muted); margin: 0; }
.kv dd { margin: 0; font-family: var(--mono); }
.kv.total dd { color: var(--pri); font-size: 20px; font-weight: 600; }

/* ---------------- 账号 ---------------- */
.meter {
  height: 7px; border-radius: 999px;
  background: var(--well-strong);
  overflow: hidden; margin: 10px 0 7px;
}
.meter i {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--jade), var(--pri));
  border-radius: 999px;
  transition: width .6s cubic-bezier(.2,.8,.3,1);
}
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }

.order-row {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}
.order-row:last-child { border-bottom: 0; }
.order-no { font-family: var(--mono); font-size: 12px; color: var(--faint); }

/* ---------------- 状态 ---------------- */
.empty { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty h3 { color: var(--text); }

.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--line-strong);
  border-top-color: var(--pri);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
.spinner-page { margin: 80px auto; width: 28px; height: 28px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
  position: fixed;
  left: 50%; bottom: 92px;
  transform: translateX(-50%) translateY(16px);
  z-index: 90;
  padding: 11px 20px;
  border-radius: 999px;
  background: var(--toast-bg);
  color: var(--toast-text);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(10px);
  font-size: 13.5px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s, transform .25s;
  max-width: calc(100vw - 40px);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.err { border-color: var(--err-line); color: var(--err-text); }

/* ---------------- 页脚 ---------------- */
.foot {
  border-top: 1px solid var(--line);
  padding: 34px 0 40px;
  color: var(--faint);
  font-size: 13px;
}
.foot-links { display: flex; flex-wrap: wrap; gap: 18px; margin-bottom: 16px; }
.foot-links a:hover { color: var(--text); }

/* ---------------- 移动端底栏 ---------------- */
.tabbar { display: none; }

@media (max-width: 760px) {
  .nav-links { display: none; }
  .pulse { display: none; }
  .stats { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .step:not(:last-child)::after {
    right: auto; left: 33px; top: auto; bottom: -14px;
    width: 1px; height: 14px;
  }
  .hero { padding-top: 34px; }
  .view { padding-bottom: 110px; }

  .tabbar {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 50;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: var(--chrome-solid);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-top: 1px solid var(--line);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .tabbar a {
    display: flex; flex-direction: column; align-items: center; gap: 3px;
    padding: 9px 0 7px;
    font-size: 11px;
    color: var(--faint);
    transition: color .18s;
  }
  .tabbar a.on { color: var(--pri); }
  .tabbar svg { width: 21px; height: 21px; }
  .foot { padding-bottom: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

/* ---------------- 品牌标识兜底 ---------------- */
.logo-text {
  background: linear-gradient(135deg, var(--pri-hi), var(--pri-lo));
  display: grid; place-items: center;
  color: #fff; font-size: 14px; font-weight: 800;
  padding: 0;
}

/* ---------------- 注册页的待购套餐条 ---------------- */
.pending-plan {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px;
  margin: 22px 0 12px;
  padding: 14px 18px;
  border: 1px solid rgba(47, 134, 255, .34);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(47,134,255,.12), rgba(47,134,255,.035));
}
.pending-name { font-weight: 650; font-size: 15.5px; margin-top: 2px; }
.pending-price {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--pri);
  white-space: nowrap;
}

/* ---------------- 接口排查页 ---------------- */
.probe {
  display: flex; align-items: center; gap: 10px;
  background: var(--well-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 10px 10px 14px;
  margin-bottom: 18px;
}
.probe code {
  flex: 1;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.diag { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.diag li {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
}
.diag b { color: var(--text); font-weight: 650; margin-right: 6px; }
.diag code {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--surface-2);
  border-radius: 5px;
  padding: 1px 5px;
  color: var(--pri-hi);
}

/* ---------------- 邀请 ---------------- */
.sub-url {
  display: flex; align-items: center; gap: 10px;
  background: var(--well-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 10px 10px 14px;
}
.sub-url code {
  flex: 1;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.invite-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 14px;
}
.invite-stats > div {
  display: flex; flex-direction: column; gap: 2px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--well);
}
.invite-stats .faint { font-size: 12px; }
.invite-stats b {
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.invite-ok {
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--jade);
}

@media (max-width: 760px) {
  .invite-stats { grid-template-columns: repeat(2, 1fr); }
  .sub-url { flex-wrap: wrap; }
  .sub-url code { flex: 1 1 100%; white-space: normal; word-break: break-all; }
}

/* ---------------- 邀请页 ---------------- */
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
}

.invite-stats .hl { color: var(--pri); }

.code-row {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.code-row:last-child { border-bottom: 0; padding-bottom: 0; }
.code-main { flex: 1; min-width: 0; }
.code-label { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.code-text {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
}
.code-link {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  margin-top: 3px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.code-acts { display: flex; gap: 8px; flex: 0 0 auto; }

.method-pick { display: flex; flex-wrap: wrap; gap: 7px; }

.entry-row {
  display: flex; align-items: center; gap: 14px;
  transition: border-color .16s, background .16s;
}
.entry-row:hover { border-color: var(--line-strong); background: var(--surface-2); }
.entry-arrow { color: var(--pri); font-size: 18px; flex: 0 0 auto; }

.pager {
  display: flex; align-items: center; justify-content: center;
  gap: 14px; margin-top: 16px;
}

@media (max-width: 760px) {
  .code-row { flex-direction: column; align-items: stretch; gap: 10px; }
  .code-link { white-space: normal; word-break: break-all; }
  .code-acts .btn { flex: 1; }
  .tabbar-dense a { font-size: 10px; }
  .tabbar-dense svg { width: 19px; height: 19px; }
}

/* ============================================================
 *  浅色模式
 *  data-theme 缺省时跟随系统；显式设为 light / dark 则以用户选择为准
 * ============================================================ */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
  color-scheme: light;

  --ink: #f5f8fd;
  --ink-2: #eaf0f9;

  --text: #16202e;
  --muted: #55647a;
  --faint: #8695aa;

  --surface: rgba(15, 30, 55, .035);
  --surface-2: rgba(15, 30, 55, .07);
  --line: rgba(15, 30, 55, .11);
  --line-strong: rgba(15, 30, 55, .2);

  --well: rgba(15, 30, 55, .04);
  --well-2: rgba(15, 30, 55, .055);
  --well-strong: rgba(15, 30, 55, .1);
  --field-bg: #ffffff;
  --field-bg-focus: #ffffff;

  --card-a: #ffffff;
  --card-b: #ffffff;
  --card-shadow: 0 1px 2px rgba(15, 30, 55, .04), 0 8px 24px -12px rgba(15, 30, 55, .12);

  --chrome: rgba(255, 255, 255, .8);
  --chrome-solid: rgba(255, 255, 255, .96);
  --toast-bg: rgba(22, 32, 46, .96);
  --toast-text: #f2f6fc;

  --glow-a: rgba(47, 134, 255, .13);
  --glow-b: rgba(53, 211, 160, .1);
  --grad-top: #e9f1ff;
  --grad-bot: #f8fafd;
  --hairline: rgba(15, 30, 55, .028);

  /* 浅色下主色要压深一档才够对比度，高光色反过来当 hover */
  --pri: #1668e3;
  --pri-hi: #2f86ff;
  --pri-lo: #0a4bb0;
  --jade: #0d9268;
  --danger: #d6402f;

  --err-bg: rgba(214, 64, 47, .07);
  --err-line: rgba(214, 64, 47, .26);
  --err-text: #b3301f;
  --ok-bg: rgba(13, 146, 104, .08);
  --ok-line: rgba(13, 146, 104, .26);
  --ok-text: var(--jade);
  }
}

:root[data-theme="light"] {
  color-scheme: light;

  --ink: #f5f8fd;
  --ink-2: #eaf0f9;

  --text: #16202e;
  --muted: #55647a;
  --faint: #8695aa;

  --surface: rgba(15, 30, 55, .035);
  --surface-2: rgba(15, 30, 55, .07);
  --line: rgba(15, 30, 55, .11);
  --line-strong: rgba(15, 30, 55, .2);

  --well: rgba(15, 30, 55, .04);
  --well-2: rgba(15, 30, 55, .055);
  --well-strong: rgba(15, 30, 55, .1);
  --field-bg: #ffffff;
  --field-bg-focus: #ffffff;

  --card-a: #ffffff;
  --card-b: #ffffff;
  --card-shadow: 0 1px 2px rgba(15, 30, 55, .04), 0 8px 24px -12px rgba(15, 30, 55, .12);

  --chrome: rgba(255, 255, 255, .8);
  --chrome-solid: rgba(255, 255, 255, .96);
  --toast-bg: rgba(22, 32, 46, .96);
  --toast-text: #f2f6fc;

  --glow-a: rgba(47, 134, 255, .13);
  --glow-b: rgba(53, 211, 160, .1);
  --grad-top: #e9f1ff;
  --grad-bot: #f8fafd;
  --hairline: rgba(15, 30, 55, .028);

  /* 浅色下主色要压深一档才够对比度，高光色反过来当 hover */
  --pri: #1668e3;
  --pri-hi: #2f86ff;
  --pri-lo: #0a4bb0;
  --jade: #0d9268;
  --danger: #d6402f;

  --err-bg: rgba(214, 64, 47, .07);
  --err-line: rgba(214, 64, 47, .26);
  --err-text: #b3301f;
  --ok-bg: rgba(13, 146, 104, .08);
  --ok-line: rgba(13, 146, 104, .26);
  --ok-text: var(--jade);
}

/* 深色下主按钮文字用白色，浅色下同样白色，这里只是把 color-scheme 补齐 */
:root[data-theme="dark"] { color-scheme: dark; }

/* 浅色模式的细节修正 */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .logo-mark { background: transparent; box-shadow: none; }
  :root:not([data-theme="dark"]) .btn-pri { box-shadow: 0 6px 18px -8px rgba(22, 104, 227, .6); }
}
:root[data-theme="light"] .logo-mark { background: transparent; box-shadow: none; }
:root[data-theme="light"] .btn-pri { box-shadow: 0 6px 18px -8px rgba(22, 104, 227, .6); }

/* 下拉箭头在浅色下要压深，否则浅灰在白底上几乎看不见 */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .select {
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2355647a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  }
}
:root[data-theme="light"] .select {
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2355647a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}

/* ============================================================
 *  主题切换按钮
 * ============================================================ */
.theme-btn {
  display: inline-grid;
  place-items: center;
  width: 34px; height: 34px;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  transition: color .18s, background .18s, border-color .18s;
}
.theme-btn:hover { color: var(--text); background: var(--surface-2); }
.theme-btn svg { width: 17px; height: 17px; }

/* ---------------- 下拉选择 ----------------
   浏览器默认 select 在深色模式下会露出系统白底，
   所以关掉原生外观自己画箭头。option 的配色由 color-scheme 接管。 */
.select {
  flex: 0 0 auto;
  width: auto;
  min-width: 130px;
  padding-right: 34px;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2393a3bd' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 11px center;
  background-size: 15px;
}
.select:focus { outline: none; border-color: var(--pri); }

@media (max-width: 460px) {
  .select { min-width: 112px; padding-right: 30px; font-size: 14px; }
}