:root {
  --bg: #0D0D11;
  --bg-soft: rgba(224, 224, 224, 0.035);
  --panel: rgba(224, 224, 224, 0.052);
  --panel-2: rgba(224, 224, 224, 0.075);
  --line: rgba(224, 224, 224, 0.14);
  --text: #E0E0E0;
  --muted: rgba(224, 224, 224, 0.68);
  --green: #00FF66;
  --green-soft: rgba(0, 255, 102, 0.18);
  --red: #D32F2F;
  --red-soft: rgba(211, 47, 47, 0.18);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.46);
  --radius: 8px;
  --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  line-height: 1.72;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    repeating-linear-gradient(90deg, rgba(224,224,224,0.028) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(0deg, rgba(224,224,224,0.016) 0 1px, transparent 1px 46px),
    radial-gradient(circle at 16% 12%, rgba(0,255,102,0.14), transparent 30%),
    radial-gradient(circle at 84% 10%, rgba(211,47,47,0.15), transparent 28%),
    var(--bg);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(13,13,17,0.82) 0 7%, transparent 7% 93%, rgba(13,13,17,0.82) 93% 100%),
    repeating-linear-gradient(180deg, transparent 0 14px, rgba(0,0,0,0.2) 14px 17px);
  opacity: .42;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
p { margin: 0 0 1rem; }

.container { width: min(100% - 32px, var(--max)); margin-inline: auto; }
.section { padding: 84px 0; }
.section.tight { padding: 56px 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 13, 17, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark,
.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 6px;
  box-shadow: 0 0 24px rgba(0,255,102,0.38);
}

.brand-mark {
  display: grid;
  place-items: center;
  color: var(--bg);
  background: var(--green);
}

.brand-icon {
  object-fit: cover;
}

.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a, .site-nav button { font: inherit; }

.site-nav a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  color: var(--muted);
  border-radius: 6px;
}

.site-nav a:hover { color: var(--text); background: rgba(224,224,224,0.06); }
.site-nav a:hover { box-shadow: inset 0 -1px 0 var(--green); }
.nav-cta { margin-left: 8px; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: rgba(224,224,224,0.04);
  color: var(--text);
  border-radius: 6px;
}

.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--text);
}

.btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--text);
  background: rgba(224,224,224,0.045);
  cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, background .18s ease, box-shadow .18s ease;
}

.btn:hover { transform: translateY(-1px); border-color: rgba(0,255,102,0.7); box-shadow: 0 0 0 1px rgba(0,255,102,0.2), 0 0 24px rgba(0,255,102,0.18); }
.btn:hover::first-letter { color: var(--red); }
.btn-primary { color: var(--bg); background: var(--green); border-color: var(--green); font-weight: 800; box-shadow: 0 0 28px rgba(0,255,102,0.32); }
.btn-danger { background: var(--red); border-color: var(--red); color: var(--text); font-weight: 700; }

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: end;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(13,13,17,0.98) 0%, rgba(13,13,17,0.78) 42%, rgba(13,13,17,0.34) 72%),
    linear-gradient(0deg, rgba(13,13,17,1) 0%, rgba(13,13,17,0.1) 44%),
    url('../img/2 (1).webp') center / cover no-repeat;
  z-index: -2;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent 0 18px, rgba(0,0,0,0.22) 18px 20px);
  opacity: .46;
  z-index: -1;
}

.hero-content::before {
  content: "REC";
  display: inline-block;
  margin-bottom: 18px;
  padding: 3px 9px;
  color: var(--red);
  border: 1px solid rgba(211,47,47,0.62);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.4;
  box-shadow: 0 0 18px rgba(211,47,47,0.18);
}

.hero-content { padding: 88px 0 74px; max-width: 740px; }
.eyebrow { color: var(--green); font-weight: 800; margin-bottom: 16px; text-shadow: 0 0 18px rgba(0,255,102,0.34); }
h1, h2, h3 { line-height: 1.18; margin: 0; letter-spacing: 0; }
h1 { font-size: clamp(42px, 8vw, 86px); text-shadow: 0 0 28px rgba(0,255,102,0.16); }
h2 { font-size: clamp(28px, 4vw, 44px); margin-bottom: 18px; }
h3 { font-size: 21px; margin-bottom: 10px; }
.lead { font-size: clamp(17px, 2vw, 21px); color: var(--text); max-width: 700px; }
h1:hover, .brand:hover { text-shadow: 2px 0 rgba(0,255,102,0.48), -2px 0 rgba(211,47,47,0.44); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.meta-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 44px;
  border: 1px solid var(--line);
  background: var(--line);
}

.meta-item { padding: 18px; background: rgba(13,13,17,0.72); }
.meta-item span { display: block; color: var(--muted); font-size: 13px; }
.meta-item strong { display: block; margin-top: 3px; }

.section-head { max-width: 800px; margin-bottom: 34px; }
.section-head p { color: var(--muted); font-size: 17px; }

.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  position: relative;
  background: linear-gradient(180deg, rgba(224,224,224,0.06), rgba(224,224,224,0.024));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 18px 50px rgba(0,0,0,0.18);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 42px;
  height: 2px;
  background: var(--green);
  box-shadow: 0 0 18px rgba(0,255,102,0.42);
}

.card p, .rich-text li { color: var(--muted); }
.card.accent { border-color: rgba(0,255,102,0.42); background: linear-gradient(180deg, rgba(0,255,102,0.11), rgba(224,224,224,0.024)); }
.card.warning { border-color: rgba(211,47,47,0.48); box-shadow: inset 0 0 0 1px rgba(211,47,47,0.1), 0 18px 50px rgba(0,0,0,0.18); }
.media-card { overflow: hidden; padding: 0; }
.media-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; filter: saturate(1.18) contrast(1.08) brightness(.82); transition: filter .22s ease, transform .22s ease; }
.media-card:hover img { filter: saturate(1.2) contrast(1.1) brightness(1); transform: scale(1.018); }
.media-card .card-body { padding: 22px; }

.feature-list { display: grid; gap: 12px; padding: 0; margin: 0; list-style: none; }
.feature-list li { padding-left: 24px; position: relative; color: var(--muted); }
.feature-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 8px; background: var(--green); box-shadow: 0 0 14px var(--green); }

.number-list,
.plain-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 22px;
}

.number-list li,
.plain-list li { color: var(--muted); }

.number-list li::marker { color: var(--green); font-weight: 800; }
.plain-list li::marker { color: var(--red); }

.content-block { display: grid; gap: 18px; }
.content-block h3 { color: var(--text); }

.note-line {
  margin-top: 18px;
  padding: 14px 16px;
  border-left: 3px solid var(--red);
  background: rgba(211,47,47,0.1);
  color: var(--muted);
}

.timeline { display: grid; gap: 14px; }
.timeline-item { display: grid; grid-template-columns: 118px 1fr; gap: 18px; padding: 18px; border: 1px solid var(--line); background: rgba(224,224,224,0.035); border-radius: var(--radius); }
.timeline-item time { color: var(--green); font-weight: 800; }

.index-card { display: flex; flex-direction: column; min-height: 210px; }
.index-card .btn { margin-top: auto; width: fit-content; }

.page-hero {
  padding: 86px 0 50px;
  background:
    repeating-linear-gradient(90deg, transparent 0 20px, rgba(0,0,0,0.24) 20px 23px),
    linear-gradient(90deg, rgba(13,13,17,0.98), rgba(13,13,17,0.78)),
    url('../img/2 (4).webp') center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 { font-size: clamp(34px, 6vw, 64px); }
.breadcrumbs { color: var(--muted); margin-bottom: 14px; font-size: 14px; }
.breadcrumbs a { color: var(--green); }
.last-updated { color: var(--muted); margin-top: 18px; font-size: 14px; }

.info-table { width: 100%; border-collapse: collapse; overflow: hidden; border-radius: var(--radius); }
.info-table th, .info-table td { padding: 15px 16px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.info-table th { width: 180px; color: var(--green); background: rgba(0,255,102,0.06); }
.info-table td { color: var(--muted); }

.qa { display: grid; gap: 14px; }
.qa article { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(224,224,224,0.035); }
.qa h2, .qa h3 { font-size: 22px; margin-bottom: 10px; }
.qa p { color: var(--muted); }

.footer { padding: 48px 0; border-top: 1px solid var(--line); color: var(--muted); background: var(--bg); }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; align-items: start; }
.friend-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.friend-links a { padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; color: var(--text); background: rgba(224,224,224,0.035); }

@media (max-width: 920px) {
  .grid.two, .grid.three, .grid.four { grid-template-columns: 1fr 1fr; }
  .meta-strip { grid-template-columns: 1fr 1fr; }
  .site-nav {
    position: absolute;
    inset: 72px 16px auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    background: rgba(13,13,17,0.98);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a, .site-nav .btn { width: 100%; justify-content: flex-start; margin: 0; }
  .nav-toggle { display: block; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 22px, var(--max)); }
  .section { padding: 58px 0; }
  .hero { min-height: 760px; }
  .hero::before { background-position: 62% center; }
  .grid.two, .grid.three, .grid.four, .meta-strip { grid-template-columns: 1fr; }
  .hero-content { padding: 70px 0 46px; }
  .hero-actions .btn { width: 100%; }
  .timeline-item { grid-template-columns: 1fr; }
  .info-table th, .info-table td { display: block; width: 100%; }
  .card { padding: 20px; }
}

/* Protocol-only additions for generated news and managed download confirmation. */
.download-confirm-backdrop { position: fixed; inset: 0; z-index: 600; display: grid; place-items: center; padding: 18px; background: rgba(13,13,17,.78); backdrop-filter: blur(8px); }
.download-confirm-panel { width: min(460px,100%); padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #15151b; color: var(--text); box-shadow: var(--shadow); }
.download-confirm-panel h2 { margin: 0 0 10px; line-height: 1.2; }
.download-confirm-panel p { margin: 0; color: var(--muted); }
.download-confirm-actions { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.download-confirm-cancel, .download-confirm-continue { min-height: 42px; padding: 0 16px; border: 1px solid var(--line); border-radius: var(--radius); font: inherit; font-weight: 800; cursor: pointer; }
.download-confirm-cancel { background: var(--panel); color: var(--text); }
.download-confirm-continue { border-color: var(--green); background: var(--green); color: var(--bg); }
body.my-news-page { background: var(--bg); }
.my-news-shell { width: min(900px, calc(100% - 32px)); margin: 0 auto; padding: 52px 0 72px; }
.my-news-back { display: inline-flex; margin-bottom: 28px; color: var(--green); font-weight: 800; }
.my-news-header { margin-bottom: 30px; }
.my-news-header h1 { margin: 0 0 8px; color: var(--text); }
.my-news-header p, .my-news-meta { color: var(--muted); }
.my-news-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; }
.my-home-news { scroll-margin-top: 92px; }
.my-news-heading { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 20px; max-width: none; }
.my-news-heading > div { flex: 1 1 280px; min-width: 0; }
.my-news-heading > a { flex: 0 0 auto; }
.my-news-heading h2 { margin: 0 0 12px; }
.my-news-heading p { margin: 0; }
.my-home-news .my-news-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.my-news-grid > *, .my-news-article, .my-news-header { min-width: 0; overflow-wrap: anywhere; }
.my-news-empty { margin: 0; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); color: var(--muted); text-align: center; }
.my-news-grid:has(.my-news-card) + .my-news-empty { display: none; }
.my-news-header h1, .my-news-article h1 { max-width: none; font-size: clamp(28px, 4vw, 42px); line-height: 1.35; }
@media (max-width: 920px) { .my-home-news .my-news-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .my-home-news .my-news-grid { grid-template-columns: minmax(0, 1fr); } .my-news-heading > a { width: 100%; } }
.my-news-card, .my-news-article { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow); }
.my-news-card h2, .my-news-card h3, .my-news-article h1 { margin-top: 0; color: var(--text); }
.my-news-card time { display: block; color: var(--muted); font-size: .9rem; }
.my-news-card p, .my-news-content { color: var(--muted); }
.my-news-card a, .my-news-nav a { color: var(--green); font-weight: 800; }
.my-news-summary { color: var(--text); font-weight: 700; }
.my-news-content { margin-top: 24px; white-space: pre-wrap; overflow-wrap: anywhere; }
.my-news-nav { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 28px; }
@media (max-width: 640px) { .my-news-shell { width: min(100% - 22px, 900px); padding: 36px 0 56px; } .download-confirm-actions { justify-content: stretch; } .download-confirm-cancel, .download-confirm-continue { flex: 1 1 120px; } }