:root {
  color-scheme: dark;
  --bg: #0a0f18;
  --bg-soft: #0f1724;
  --panel: #111b2a;
  --panel-raised: #152236;
  --panel-hover: #192a41;
  --line: rgba(148, 163, 184, 0.18);
  --line-strong: rgba(148, 163, 184, 0.3);
  --text: #f7f9fc;
  --muted: #9aa9bd;
  --faint: #6f819a;
  --blue: #71a7ff;
  --blue-strong: #4d8df7;
  --blue-soft: rgba(113, 167, 255, 0.13);
  --green: #42d69a;
  --green-soft: rgba(66, 214, 154, 0.13);
  --red: #ff7c87;
  --red-soft: rgba(255, 124, 135, 0.12);
  --amber: #f8c56d;
  --amber-soft: rgba(248, 197, 109, 0.12);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.26);
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Consolas, monospace;
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f6fa;
  --bg-soft: #eaf0f7;
  --panel: #ffffff;
  --panel-raised: #f8fafc;
  --panel-hover: #f0f6ff;
  --line: rgba(15, 23, 42, 0.12);
  --line-strong: rgba(15, 23, 42, 0.22);
  --text: #142033;
  --muted: #5d6b7c;
  --faint: #7a8798;
  --blue: #2f6fce;
  --blue-strong: #235db3;
  --blue-soft: rgba(47, 111, 206, 0.1);
  --green: #138a60;
  --green-soft: rgba(19, 138, 96, 0.1);
  --red: #d54858;
  --red-soft: rgba(213, 72, 88, 0.1);
  --amber: #a36a11;
  --amber-soft: rgba(163, 106, 17, 0.1);
  --shadow: 0 22px 60px rgba(35, 57, 86, 0.12);
}

* { box-sizing: border-box; }
html { min-width: 320px; }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(113, 167, 255, 0.06), transparent 270px),
    var(--bg);
  font: 14px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
button, input { font: inherit; }
button { cursor: pointer; }

.particle-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: .92;
}

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}
.topbar {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(22px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(10, 15, 24, 0.78);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 20;
}
[data-theme="light"] .topbar { background: rgba(255, 255, 255, 0.84); }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--text); text-decoration: none; }
.brand-mark {
  width: 38px; height: 38px; display: grid; place-items: center;
  color: var(--blue); border: 1px solid rgba(113, 167, 255, 0.35);
  background: var(--blue-soft); border-radius: 10px;
  overflow: hidden;
}
.brand-mark img { width: 100%; height: 100%; display: block; object-fit: cover; }
.brand strong { display: block; font-size: 14px; letter-spacing: .02em; }
.brand small { display: block; color: var(--faint); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.icon-text-button, .icon-button, .text-button {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  border: 1px solid var(--line); background: transparent; color: var(--muted);
  border-radius: 8px; transition: .2s ease;
}
.icon-text-button { padding: 8px 11px; font-size: 12px; }
.icon-button { width: 34px; height: 34px; font-size: 16px; }
.icon-text-button:hover, .icon-button:hover, .text-button:hover { color: var(--text); border-color: var(--line-strong); background: var(--panel-hover); }
.runtime-status { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; }
.status-dot, .large-status-dot { display: inline-block; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px var(--green-soft); }
.status-dot { width: 7px; height: 7px; }
.page-content { width: min(1180px, calc(100% - 44px)); margin: 0 auto; flex: 1; }
.intro { display: flex; align-items: end; justify-content: space-between; gap: 30px; padding: 68px 0 42px; }
.eyebrow, .section-kicker { color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.intro h1 { margin: 12px 0 12px; font-size: clamp(30px, 4vw, 48px); line-height: 1.1; letter-spacing: 0; }
.intro p { max-width: 640px; margin: 0; color: var(--muted); font-size: 15px; }
.intro-trust { display: flex; align-items: center; gap: 10px; min-width: 190px; color: var(--text); }
.trust-icon { width: 38px; height: 38px; display: grid; place-items: center; color: var(--green); border-radius: 10px; background: var(--green-soft); }
.intro-trust strong, .intro-trust small { display: block; }
.intro-trust strong { font-size: 13px; }
.intro-trust small { color: var(--muted); font-size: 11px; }
.workspace-grid { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 24px; align-items: start; }
.primary-column { min-width: 0; }
.upload-panel, .info-panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.upload-panel { overflow: hidden; }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 22px 24px 18px; }
.section-heading h2, .info-panel h2 { margin: 5px 0 0; font-size: 17px; line-height: 1.25; }
.format-note { color: var(--muted); font-size: 12px; }
.drop-zone {
  position: relative; min-height: 300px; margin: 0 16px 16px; padding: 40px 24px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  border: 1px dashed rgba(113, 167, 255, 0.52); border-radius: 10px;
  background: linear-gradient(180deg, rgba(113, 167, 255, 0.075), rgba(113, 167, 255, 0.025));
  transition: .22s ease;
}
.drop-zone:hover, .drop-zone.dragging { border-color: var(--blue); background: var(--blue-soft); transform: translateY(-1px); }
.drop-zone.dragging::after { content: "松开鼠标开始检测"; position: absolute; inset: 0; display: grid; place-items: center; background: rgba(17, 27, 42, .86); border-radius: 10px; color: var(--blue); font-weight: 800; font-size: 16px; }
.drop-zone-icon { width: 62px; height: 62px; display: grid; place-items: center; margin-bottom: 18px; color: var(--blue); border-radius: 16px; background: var(--blue-soft); }
.drop-zone-copy strong, .drop-zone-copy span { display: block; }
.drop-zone-copy strong { font-size: 19px; }
.drop-zone-copy span { margin-top: 5px; color: var(--muted); font-size: 13px; }
.primary-button {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px; margin-top: 21px; padding: 11px 18px;
  border: 1px solid var(--blue); border-radius: 8px; background: var(--blue-strong); color: #fff; font-weight: 750;
  box-shadow: 0 8px 22px rgba(77, 141, 247, .22); transition: .2s ease;
}
.primary-button:hover { background: var(--blue); transform: translateY(-1px); }
.drop-zone-hint { margin-top: 16px; color: var(--faint); font-size: 11px; }
.settings-row { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; padding: 15px 24px; border-top: 1px solid var(--line); background: var(--bg-soft); }
.toggle-control { display: inline-flex; align-items: center; gap: 10px; margin-right: auto; cursor: pointer; }
.toggle-control input { position: absolute; opacity: 0; pointer-events: none; }
.toggle { width: 34px; height: 20px; position: relative; flex: 0 0 auto; border-radius: 20px; background: var(--line-strong); transition: .2s ease; }
.toggle i { position: absolute; top: 3px; left: 3px; width: 14px; height: 14px; border-radius: 50%; background: #fff; transition: .2s ease; }
.toggle-control input:checked + .toggle { background: var(--green); }
.toggle-control input:checked + .toggle i { transform: translateX(14px); }
.toggle-control strong, .toggle-control small { display: block; }
.toggle-control strong { font-size: 12px; font-weight: 650; }
.toggle-control small { color: var(--faint); font-size: 10px; }
.extension-control { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; }
.extension-control input { width: 72px; padding: 7px 8px; color: var(--text); border: 1px solid var(--line); border-radius: 7px; background: var(--panel); font-family: var(--mono); text-align: center; }
.extension-control input:focus { border-color: var(--blue); outline: none; }
.text-button { padding: 7px 9px; font-size: 12px; }
.results-section { margin-top: 30px; }
.results-heading { padding: 0 2px 13px; }
.summary-pill, .format-note { white-space: nowrap; }
.summary-pill { padding: 5px 9px; border: 1px solid var(--line); border-radius: 7px; color: var(--muted); background: var(--panel); font-size: 11px; }
.results-list { display: flex; flex-direction: column; gap: 10px; min-height: 108px; }
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; min-height: 150px; padding: 30px; color: var(--muted); border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.empty-state strong { color: var(--text); font-size: 13px; }
.empty-state span { color: var(--faint); font-size: 12px; }
.empty-icon { width: 48px; height: 48px; display: grid; place-items: center; margin-bottom: 6px; color: var(--faint); border-radius: 12px; background: var(--bg-soft); }
.result-card { display: grid; grid-template-columns: 42px minmax(0, 1fr) auto; align-items: center; gap: 13px; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.result-card.ok { border-color: rgba(66, 214, 154, .38); }
.result-card.bad { border-color: rgba(255, 124, 135, .34); }
.result-card.running { border-color: rgba(113, 167, 255, .4); }
.result-icon { width: 42px; height: 42px; display: grid; place-items: center; color: var(--muted); border-radius: 10px; background: var(--bg-soft); }
.result-card.ok .result-icon { color: var(--green); background: var(--green-soft); }
.result-card.bad .result-icon { color: var(--red); background: var(--red-soft); }
.result-card.running .result-icon { color: var(--blue); background: var(--blue-soft); }
.result-info { min-width: 0; }
.result-name { overflow: hidden; color: var(--text); font-size: 13px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
.result-meta { overflow: hidden; margin-top: 3px; color: var(--muted); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.result-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.badge { padding: 5px 8px; border-radius: 6px; color: var(--muted); background: var(--bg-soft); font-size: 11px; font-weight: 750; white-space: nowrap; }
.badge.ok { color: var(--green); background: var(--green-soft); }
.badge.bad { color: var(--red); background: var(--red-soft); }
.badge.running { color: var(--blue); background: var(--blue-soft); }
.download-button, .failure-button { display: inline-flex; align-items: center; gap: 6px; padding: 7px 9px; border-radius: 7px; font-size: 11px; font-weight: 700; text-decoration: none; transition: .2s ease; }
.download-button { color: var(--bg); background: var(--text); }
.download-button:hover { color: #fff; background: var(--blue-strong); }
.failure-button { border: 1px solid rgba(248, 197, 109, .4); color: var(--amber); background: var(--amber-soft); }
.failure-button:hover { color: var(--text); border-color: var(--amber); }
.side-column { display: flex; flex-direction: column; gap: 16px; }
.info-panel { padding: 21px; box-shadow: none; }
.status-card { display: flex; align-items: center; gap: 11px; margin: 18px 0; padding: 12px; border: 1px solid var(--line); border-radius: 9px; background: var(--bg-soft); }
.large-status-dot { width: 11px; height: 11px; }
.status-card strong, .status-card span { display: block; }
.status-card strong { font-size: 12px; }
.status-card span:not(.large-status-dot) { margin-top: 3px; color: var(--muted); font-size: 11px; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.stats-grid div { padding: 10px 8px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg-soft); text-align: center; }
.stats-grid strong, .stats-grid span { display: block; }
.stats-grid strong { font-size: 20px; line-height: 1.1; }
.stats-grid span { margin-top: 4px; color: var(--muted); font-size: 10px; }
.guide-list { display: flex; flex-direction: column; gap: 16px; margin: 20px 0 0; padding: 0; list-style: none; }
.guide-list li { display: flex; align-items: center; gap: 10px; }
.guide-list li > span { width: 25px; height: 25px; display: grid; place-items: center; flex: 0 0 auto; color: var(--blue); border: 1px solid rgba(113, 167, 255, .35); border-radius: 7px; background: var(--blue-soft); font-size: 11px; font-weight: 800; }
.guide-list strong, .guide-list small { display: block; }
.guide-list strong { font-size: 12px; }
.guide-list small { margin-top: 2px; color: var(--muted); font-size: 11px; }
.privacy-note { display: flex; gap: 9px; padding: 14px; color: var(--muted); border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); font-size: 11px; }
.privacy-note svg { flex: 0 0 auto; color: var(--green); }
.footer { display: flex; justify-content: center; align-items: center; gap: 10px; padding: 28px 22px; color: var(--faint); font-size: 11px; }
.footer-separator { color: var(--line-strong); }
.ann-backdrop { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 20px; background: rgba(0, 0, 0, .64); opacity: 0; pointer-events: none; transition: opacity .2s ease; }
.ann-backdrop.show { opacity: 1; pointer-events: auto; }
.ann-modal { width: min(520px, 100%); overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow); transform: translateY(10px); transition: transform .2s ease; }
.ann-backdrop.show .ann-modal { transform: translateY(0); }
.ann-modal-head, .ann-modal-body, .ann-modal-actions { padding: 18px 20px; }
.ann-modal-head { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.ann-modal-head h3 { margin: 0; font-size: 16px; }
.ann-modal-close { width: 30px; height: 30px; border: 0; border-radius: 7px; color: var(--muted); background: transparent; }
.ann-modal-close:hover { color: var(--text); background: var(--bg-soft); }
.ann-modal-body { color: var(--muted); white-space: pre-wrap; }
.ann-modal-actions { display: flex; justify-content: flex-end; gap: 8px; border-top: 1px solid var(--line); background: var(--bg-soft); }
.ann-modal-actions a, .ann-modal-actions button { padding: 8px 12px; border: 1px solid var(--line); border-radius: 7px; color: var(--text); background: transparent; text-decoration: none; font-size: 12px; }
.ann-modal-actions a:hover, .ann-modal-actions button:hover { border-color: var(--blue); color: var(--blue); }
.donate-modal { width: min(420px, 100%); }
.donate-body { display: flex; flex-direction: column; align-items: center; gap: 12px; color: var(--text); }
.donate-qr { width: min(320px, 100%); aspect-ratio: 1 / 1; object-fit: contain; padding: 12px; border-radius: 12px; background: #fff; box-shadow: inset 0 0 0 1px var(--line); }
.donate-note { color: var(--muted); font-size: 12px; text-align: center; }
@media (max-width: 860px) {
  .intro { align-items: flex-start; flex-direction: column; padding-top: 48px; }
  .intro-trust { min-width: 0; }
  .workspace-grid { grid-template-columns: 1fr; }
  .side-column { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .privacy-note { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .topbar { height: 64px; padding: 0 16px; }
  .brand small, .runtime-status { display: none; }
  .page-content { width: min(100% - 28px, 520px); }
  .intro { padding: 38px 0 30px; }
  .intro h1 { font-size: 31px; }
  .intro p { font-size: 13px; }
  .section-heading { padding: 18px 17px 15px; }
  .drop-zone { min-height: 270px; margin: 0 10px 10px; padding: 28px 16px; }
  .settings-row { align-items: flex-start; flex-direction: column; gap: 14px; padding: 15px 17px; }
  .toggle-control { margin-right: 0; }
  .extension-control { width: 100%; justify-content: space-between; }
  .extension-control input { width: 100px; }
  .text-button { align-self: flex-start; }
  .side-column { display: flex; }
  .result-card { grid-template-columns: 38px minmax(0, 1fr); }
  .result-icon { width: 38px; height: 38px; }
  .result-actions { grid-column: 2; justify-content: flex-start; flex-wrap: wrap; }
  .result-meta { white-space: normal; }
}
@media (prefers-reduced-motion: reduce) {
  .particle-canvas { display: none; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}