:root {
  color-scheme: dark;
  font-family: Inter, "Segoe UI", "Microsoft YaHei", sans-serif;
  background: #08090a;
  color: #f1f1f2;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { min-width: 320px; background: #08090a; }

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 50% -15%, rgba(115, 124, 206, .14), transparent 40%),
    #08090a;
  color: #f1f1f2;
}

a { color: inherit; }

.page-shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 15px;
  font-weight: 620;
  letter-spacing: -.01em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 8px;
  background: linear-gradient(145deg, #6d75d6, #3f458f);
  box-shadow: 0 8px 28px rgba(83, 91, 177, .22);
  font-size: 13px;
  font-weight: 720;
}

.back-link {
  color: #a7a8ad;
  font-size: 14px;
  text-decoration: none;
}

.back-link:hover { color: #fff; }

.content {
  display: grid;
  min-height: calc(100vh - 76px);
  align-content: center;
  padding: 80px 0 110px;
}

.eyebrow {
  margin: 0 0 22px;
  color: #aeb5ff;
  font-size: 13px;
  font-weight: 620;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(42px, 7vw, 80px);
  font-weight: 520;
  letter-spacing: -.055em;
  line-height: .98;
}

.lead {
  max-width: 720px;
  margin: 28px 0 0;
  color: #a7a8ad;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.72;
}

.notice,
.info-grid {
  width: min(820px, 100%);
  margin-top: 46px;
}

.notice {
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 16px;
  background: rgba(255, 255, 255, .035);
  box-shadow: 0 28px 80px rgba(0, 0, 0, .25);
}

.notice-label {
  margin: 0 0 8px;
  color: #f0f0f1;
  font-size: 15px;
  font-weight: 620;
}

.notice p {
  margin: 0;
  color: #98999f;
  font-size: 14px;
  line-height: 1.7;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 620;
  text-decoration: none;
}

.button-primary { background: #f2f2f2; color: #090a0b; }
.button-primary:hover { background: #fff; }
.button-secondary { border-color: rgba(255, 255, 255, .1); background: #171819; color: #eee; }
.button-secondary:hover { border-color: rgba(255, 255, 255, .17); background: #202123; }
.button-disabled { cursor: not-allowed; opacity: .52; }

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 16px;
  overflow: hidden;
}

.info-card { padding: 24px; background: rgba(255, 255, 255, .025); }
.info-card + .info-card { border-left: 1px solid rgba(255, 255, 255, .08); }
.info-card h2 { margin: 0 0 10px; font-size: 15px; font-weight: 620; }
.info-card p { margin: 0; color: #98999f; font-size: 14px; line-height: 1.68; }

.fine-print {
  max-width: 820px;
  margin: 22px 0 0;
  color: #6f7075;
  font-size: 13px;
  line-height: 1.65;
}

:focus-visible { outline: 2px solid #aeb5ff; outline-offset: 3px; }

@media (max-width: 720px) {
  .page-shell { width: min(100% - 28px, 1120px); }
  .site-header { min-height: 66px; }
  .content { min-height: calc(100vh - 66px); padding: 66px 0 80px; }
  .notice { padding: 22px; }
  .info-grid { grid-template-columns: 1fr; }
  .info-card + .info-card { border-top: 1px solid rgba(255, 255, 255, .08); border-left: 0; }
  .actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
}

/* 曜域报毒说明：沿用首页的深色基调，并用品牌火焰色建立识别。 */
.security-page {
  --security-gold: #e8bd72;
  --security-amber: #c88138;
  --security-ink: #090a0b;
  --security-panel: #111214;
  --security-line: rgba(232, 189, 114, .18);
  background:
    radial-gradient(circle at 76% 8%, rgba(205, 91, 26, .1), transparent 28%),
    radial-gradient(circle at 18% 32%, rgba(232, 189, 114, .035), transparent 31%),
    var(--security-ink);
}

.security-page .site-header {
  min-height: 86px;
  border-bottom-color: rgba(232, 189, 114, .12);
}

.security-brand { color: #e7e5e0; }

.security-back-link {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  gap: 8px;
  padding: 0 13px;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 8px;
  background: rgba(255, 255, 255, .025);
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.security-back-link:hover {
  border-color: rgba(232, 189, 114, .25);
  background: rgba(232, 189, 114, .055);
  color: var(--security-gold);
  transform: translateY(-1px);
}

.security-page .content {
  min-height: auto;
  align-content: start;
  padding: 92px 0 110px;
}

.security-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  align-items: center;
  gap: 58px;
  width: min(100%, 1040px);
  min-height: 290px;
}

.security-hero h1 {
  max-width: 700px;
  font-size: clamp(48px, 6vw, 74px);
  line-height: 1.02;
}

.security-inline-back {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 9px;
  margin-bottom: 34px;
  padding: 0 15px;
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .025));
  color: #b9b9b7;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .045), 0 10px 26px rgba(0, 0, 0, .18);
  font-size: 14px;
  text-decoration: none;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.security-inline-back:hover {
  border-color: rgba(232, 189, 114, .28);
  background: linear-gradient(180deg, rgba(232, 189, 114, .09), rgba(232, 189, 114, .035));
  color: #f0d8a8;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .055), 0 13px 30px rgba(0, 0, 0, .23);
  transform: translateY(-2px);
}

.security-page .lead {
  max-width: 700px;
  margin-top: 30px;
  color: #aaa9a5;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.78;
}

.security-hero-visual {
  position: relative;
  display: grid;
  width: 330px;
  height: 250px;
  place-items: center;
  isolation: isolate;
}

.security-hero-visual::before {
  content: "";
  position: absolute;
  z-index: -2;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(229, 97, 25, .18), rgba(232, 189, 114, .055) 42%, transparent 70%);
  filter: blur(8px);
}

.security-logo-ring {
  position: absolute;
  z-index: -1;
  width: 196px;
  height: 196px;
  border: 1px solid rgba(232, 189, 114, .16);
  border-radius: 50%;
  box-shadow: inset 0 0 46px rgba(211, 92, 24, .055), 0 0 55px rgba(211, 92, 24, .06);
}

.security-logo-ring::before,
.security-logo-ring::after {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(255, 255, 255, .035);
  border-radius: inherit;
}

.security-logo-ring::after { inset: 42px; border-color: rgba(232, 189, 114, .08); }

.security-hero-visual img {
  width: 305px;
  height: 204px;
  object-fit: contain;
  filter: drop-shadow(0 20px 34px rgba(0, 0, 0, .38)) saturate(.92);
}

.security-page .notice,
.security-page .info-grid,
.security-page .fine-print { width: min(900px, 100%); }

.security-page .notice {
  position: relative;
  margin-top: 52px;
  overflow: hidden;
  padding: 30px 32px;
  border-color: var(--security-line);
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(232, 189, 114, .065), rgba(255, 255, 255, .025) 46%, rgba(255, 255, 255, .018));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .035), 0 28px 80px rgba(0, 0, 0, .25);
}

.security-page .notice::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 180px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--security-gold));
  opacity: .72;
}

.notice-heading { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.notice-icon {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid rgba(232, 189, 114, .28);
  border-radius: 50%;
  background: rgba(232, 189, 114, .08);
  color: var(--security-gold);
  font-size: 13px;
}
.security-page .notice-label { margin: 0; color: #f3eee5; font-size: 16px; }
.security-page .notice p { max-width: 790px; color: #9c9b97; }

.security-page .button {
  position: relative;
  min-height: 46px;
  overflow: hidden;
  border-radius: 8px;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}
.security-page .button:hover { transform: translateY(-2px); }
.security-page .button-primary {
  border-color: #f0cf8d;
  background: linear-gradient(180deg, #f1d393, #c79445);
  color: #1b140b;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .45), 0 9px 24px rgba(151, 93, 29, .18);
}
.security-page .button-primary:hover {
  background: linear-gradient(180deg, #f7dfa8, #d2a052);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .5), 0 13px 28px rgba(151, 93, 29, .24);
}
.security-page .button-secondary {
  border-color: rgba(255, 255, 255, .1);
  background: linear-gradient(180deg, #202124, #151618);
  color: #deddd9;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .055), 0 8px 22px rgba(0, 0, 0, .2);
}
.security-page .button-secondary:hover {
  border-color: rgba(232, 189, 114, .23);
  background: linear-gradient(180deg, #292722, #191816);
  color: #f0d8a8;
}

.security-page .info-grid {
  margin-top: 38px;
  border-color: rgba(255, 255, 255, .075);
  border-radius: 12px;
  background: #0d0e0f;
  box-shadow: 0 22px 60px rgba(0, 0, 0, .16);
}
.security-page .info-card { position: relative; min-height: 172px; background: linear-gradient(180deg, rgba(255, 255, 255, .025), transparent); }
.security-page .info-card + .info-card { border-color: rgba(255, 255, 255, .075); }
.security-page .info-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  width: 32px;
  height: 1px;
  background: var(--security-gold);
  opacity: .52;
}
.security-page .info-card h2 { color: #e8e5df; }
.security-page .info-card p { color: #858783; }
.security-page .fine-print { color: #666863; }
.security-page :focus-visible { outline-color: var(--security-gold); }

@media (max-width: 820px) {
  .security-hero { grid-template-columns: minmax(0, 1fr) 230px; gap: 22px; }
  .security-hero-visual { width: 230px; height: 210px; }
  .security-hero-visual img { width: 230px; height: 154px; }
  .security-logo-ring { width: 160px; height: 160px; }
}

@media (max-width: 620px) {
  .security-page .site-header { min-height: 72px; }
  .security-back-link { padding-inline: 10px; }
  .security-page .content { padding: 48px 0 76px; }
  .security-hero { grid-template-columns: 1fr; gap: 24px; }
  .security-hero-visual { grid-row: 1; width: 100%; height: 176px; }
  .security-hero-visual img { width: 232px; height: 155px; }
  .security-logo-ring { width: 145px; height: 145px; }
  .security-hero h1 { font-size: clamp(42px, 13vw, 58px); }
  .security-page .lead { margin-top: 22px; }
  .security-page .notice { margin-top: 40px; padding: 24px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .security-back-link,
  .security-inline-back,
  .security-page .button { transition: none; }
}