/* =========================================================
   MANBETX看台 · 共享样式 /assets/site.css
   1 重置与变量  2 排版  3 布局工具  4 页头  5 移动导航
   6 页脚  7 组件  8 动效  9 响应式  10 减弱动效
   ========================================================= */

/* ---------- 1. 重置与变量 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

:root {
  --ink: #0A1210;
  --deep: #10241E;
  --panel: #17332B;
  --mint: #2FE39A;
  --aqua: #6FD9C6;
  --amber: #FF9A3C;
  --paper: #F2E9D8;
  --mist: #9FB5AC;
  --sand: #D9C08A;
  --alert: #FF6B5A;

  --line: rgba(159, 181, 172, 0.22);
  --line-soft: rgba(159, 181, 172, 0.13);
  --mint-soft: rgba(47, 227, 154, 0.14);

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC",
    "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", "Roboto Mono", "SFMono-Regular", Menlo,
    Consolas, monospace;

  --radius-l: 24px;
  --radius-m: 18px;
  --radius-s: 12px;
  --pill: 999px;

  --header-main-h: 68px;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img,
svg { display: block; max-width: 100%; height: auto; }

a { color: inherit; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

button { font: inherit; }

:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
  border-radius: 8px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

#main-content { scroll-margin-top: 110px; }

/* ---------- 2. 排版 ---------- */
.prose {
  max-width: 34em;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(242, 233, 216, 0.88);
}
.prose p { margin: 0 0 1.1em; }
.prose h2 {
  margin: 1.7em 0 0.5em;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
}
.prose h3 { margin: 1.4em 0 0.4em; font-size: 1.15rem; }
.prose ul, .prose ol { margin: 0 0 1.1em; padding-left: 1.15em; }
.prose li { margin-bottom: 0.4em; }
.prose strong { color: var(--paper); }
.prose a {
  color: var(--aqua);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 217, 198, 0.5);
}
.prose a:hover { color: var(--mint); border-bottom-color: var(--mint); }

/* ---------- 3. 布局工具 ---------- */
.shell {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 44px);
}

.section { padding-block: clamp(44px, 7vw, 96px); }
.section--tight { padding-block: clamp(26px, 4vw, 52px); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: clamp(20px, 3vw, 36px);
}
.section-kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mint);
}
.section-title {
  margin: 0;
  font-size: clamp(1.75rem, 3.6vw, 2.9rem);
  font-weight: 800;
  line-height: 1.06;
}
.section-note {
  max-width: 34em;
  margin: 0;
  font-size: 15px;
  color: var(--mist);
}

.grid { display: grid; gap: clamp(16px, 2.4vw, 30px); }
.grid--split { grid-template-columns: minmax(0, 1.9fr) minmax(0, 1fr); }
.grid--halves { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--thirds { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.stack { display: grid; gap: clamp(12px, 1.8vw, 22px); }
.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.hairline {
  height: 1px;
  margin: 0;
  border: 0;
  background: var(--line);
}

/* ---------- 4. 页头 ---------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -72px;
  z-index: 200;
  padding: 10px 20px;
  border-radius: 0 0 16px 16px;
  background: var(--mint);
  color: #04140E;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(10, 18, 16, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-top {
  max-height: 48px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(23, 51, 43, 0.95) 0%, rgba(10, 18, 16, 0.55) 70%),
    var(--deep);
  border-bottom: 1px solid var(--line-soft);
  transition: max-height 0.32s ease, opacity 0.24s ease;
}
.site-header.is-condensed .header-top {
  max-height: 0;
  opacity: 0;
}

.header-top-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  padding-block: 11px;
}
.brand-line {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--mist);
}
.status-strip {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--aqua);
}
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 3px var(--mint-soft);
  animation: mbx-pulse 2.6s ease-in-out infinite;
}
@keyframes mbx-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.82); }
}

.header-main {
  position: relative;
  background: rgba(10, 18, 16, 0.6);
}
.header-main::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(47, 227, 154, 0.4) 0 2px,
    transparent 2px 26px
  );
  opacity: 0.5;
  pointer-events: none;
}
.header-main-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 26px);
  padding-block: 11px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  color: var(--paper);
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 41px;
  height: 41px;
  border-radius: 15px;
  background: var(--mint);
  color: #04140E;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand-text strong {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.brand-text em {
  font-style: normal;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.primary-nav { margin-left: auto; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-item { display: block; }
.nav-link {
  display: block;
  padding: 9px 13px;
  border-radius: var(--pill);
  font-size: 15px;
  font-weight: 600;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.nav-link:hover {
  color: var(--paper);
  background-color: rgba(47, 227, 154, 0.09);
}
.nav-link[aria-current="page"] {
  color: #04140E;
  background-color: var(--mint);
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}
.action-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 17px;
  border-radius: var(--pill);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease,
    transform 0.18s ease;
}
.action-link--ghost {
  color: var(--aqua);
  border-color: rgba(111, 217, 198, 0.42);
}
.action-link--ghost:hover {
  background-color: rgba(111, 217, 198, 0.12);
  color: var(--paper);
}
.action-link--primary {
  background-color: var(--mint);
  color: #04140E;
  box-shadow: 0 12px 26px -16px rgba(47, 227, 154, 0.9);
}
.action-link--primary:hover {
  background-color: #6BF0B6;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background-color: var(--panel);
  color: var(--paper);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.24s ease;
}
.nav-toggle-bars::before { top: 0; }
.nav-toggle-bars::after { bottom: 0; }
.site-header[data-open="true"] .nav-toggle-bars::before {
  transform: translateY(4px) rotate(45deg);
}
.site-header[data-open="true"] .nav-toggle-bars::after {
  transform: translateY(-4px) rotate(-45deg);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  z-index: 200;
  pointer-events: none;
  background: linear-gradient(90deg, var(--mint), var(--aqua) 55%, var(--amber));
}

/* ---------- 5. 移动导航 ---------- */
@media (max-width: 1080px) {
  .header-main-inner {
    flex-wrap: nowrap;
    gap: 10px;
  }
  .brand { margin-right: auto; }
  .nav-toggle { display: inline-flex; }

  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 1px);
    margin: 0;
    padding: 14px;
    max-height: min(72vh, 540px);
    overflow-y: auto;
    background: rgba(10, 18, 16, 0.985);
    border: 1px solid var(--line);
    border-top: 0;
    border-radius: 0 0 var(--radius-l) var(--radius-l);
    box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.95);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 0.26s ease, transform 0.26s ease, visibility 0.26s ease;
  }
  .site-header[data-open="true"] .primary-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .nav-link {
    padding: 12px 14px;
    border-radius: var(--radius-s);
    font-size: 16px;
  }
  .nav-link[aria-current="page"] { border-radius: var(--radius-s); }
  .header-actions .action-link--ghost { display: none; }
}

@media (max-width: 560px) {
  .brand-text em { display: none; }
  .brand-mark { width: 36px; height: 36px; border-radius: 12px; font-size: 13px; }
  .action-link--primary { padding: 9px 14px; font-size: 13px; }
  .status-strip { font-size: 11px; letter-spacing: 0.02em; }
}

/* ---------- 6. 页脚 ---------- */
.site-footer {
  position: relative;
  background:
    radial-gradient(120% 90% at 85% 0%, rgba(47, 227, 154, 0.08), transparent 60%),
    var(--deep);
  border-top: 1px solid var(--line);
}
.footer-gauge {
  height: 9px;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(159, 181, 172, 0.4) 0 1px,
    transparent 1px 22px
  );
  border-bottom: 1px solid var(--line-soft);
}
.footer-inner {
  padding-block: clamp(40px, 6vw, 76px) clamp(20px, 3vw, 30px);
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 0.78fr));
  gap: clamp(24px, 3.4vw, 52px);
}
.footer-brand .brand { text-decoration: none; }
.footer-brand-note {
  max-width: 30em;
  margin: 16px 0 0;
  font-size: 15px;
  color: var(--mist);
}
.footer-note {
  max-width: 30em;
  margin: 10px 0 0;
  font-size: 13.5px;
  color: rgba(159, 181, 172, 0.78);
}
.footer-col-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--sand);
}
.footer-links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.footer-link {
  font-size: 15px;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.footer-link:hover {
  color: var(--mint);
  border-bottom-color: rgba(47, 227, 154, 0.55);
}
.footer-contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 18px 26px;
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: clamp(22px, 3vw, 32px);
  border-top: 1px solid var(--line);
}
.contact-row {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.contact-row--wide { grid-column: span 2; }
.contact-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
}
.contact-value {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--paper);
  word-break: break-word;
}
.contact-value--amber { color: var(--amber); }
.contact-note {
  max-width: 42em;
  font-size: 14px;
  color: var(--mist);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: clamp(24px, 3.4vw, 38px);
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--mist);
}
.footer-legal {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.footer-region {
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--aqua);
}

/* ---------- 7. 组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--pill);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease,
    transform 0.18s ease;
}
.btn--primary {
  background-color: var(--mint);
  color: #04140E;
}
.btn--primary:hover { background-color: #6BF0B6; transform: translateY(-1px); }
.btn--ghost {
  border-color: rgba(111, 217, 198, 0.45);
  color: var(--aqua);
}
.btn--ghost:hover {
  background-color: rgba(111, 217, 198, 0.12);
  color: var(--paper);
}
.btn--quiet {
  background-color: var(--panel);
  border-color: var(--line);
  color: var(--paper);
}
.btn--quiet:hover { border-color: rgba(47, 227, 154, 0.45); }
.btn--amber {
  background-color: var(--amber);
  color: #1B0F02;
}
.btn--amber:hover { background-color: #FFAE60; transform: translateY(-1px); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid rgba(159, 181, 172, 0.22);
  border-radius: var(--pill);
  background-color: rgba(159, 181, 172, 0.13);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.tag--mint {
  background-color: var(--mint-soft);
  border-color: rgba(47, 227, 154, 0.36);
  color: var(--mint);
}
.tag--amber {
  background-color: rgba(255, 154, 60, 0.14);
  border-color: rgba(255, 154, 60, 0.38);
  color: var(--amber);
}
.tag--sand {
  background-color: rgba(217, 192, 138, 0.14);
  border-color: rgba(217, 192, 138, 0.36);
  color: var(--sand);
}
.tag--alert {
  background-color: rgba(255, 107, 90, 0.14);
  border-color: rgba(255, 107, 90, 0.4);
  color: var(--alert);
}

.card {
  --rail: var(--mint);
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 2.4vw, 26px) clamp(18px, 2.4vw, 26px) clamp(18px, 2.4vw, 26px)
    clamp(22px, 2.8vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background:
    linear-gradient(180deg, rgba(23, 51, 43, 0.92), rgba(16, 36, 30, 0.92));
}
.card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--rail);
}
.card--amber { --rail: var(--amber); }
.card--sand { --rail: var(--sand); }
.card--aqua { --rail: var(--aqua); }
.card--alert { --rail: var(--alert); }
.card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 14px;
}
.card-title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.card-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}
.card-body {
  max-width: 36em;
  margin: 10px 0 0;
  font-size: 15px;
  color: var(--mist);
}

.panel {
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background:
    radial-gradient(110% 80% at 0% 0%, rgba(47, 227, 154, 0.1), transparent 58%),
    var(--panel);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3.2vw, 2.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--mint);
}
.stat-label {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.rail { position: relative; }
.rail-track {
  display: flex;
  gap: 18px;
  padding-bottom: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-color: rgba(47, 227, 154, 0.45) transparent;
}
.rail-track::-webkit-scrollbar { height: 6px; }
.rail-track::-webkit-scrollbar-thumb {
  border-radius: var(--pill);
  background: rgba(47, 227, 154, 0.45);
}
.rail-item {
  flex: 0 0 min(330px, 78vw);
  scroll-snap-align: start;
}

.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background-color: var(--panel);
  background-image:
    radial-gradient(120% 100% at 18% 0%, rgba(47, 227, 154, 0.16), transparent 58%),
    repeating-linear-gradient(115deg, rgba(159, 181, 172, 0.09) 0 1px, transparent 1px 15px);
}
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--1x1 { aspect-ratio: 1 / 1; }
.media-frame--portrait { aspect-ratio: 3 / 4; }
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-caption {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--mist);
}

.breadcrumbs { padding-block: 18px; }
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--mist);
}
.breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(159, 181, 172, 0.5);
}
.breadcrumb-link {
  color: var(--mist);
  text-decoration: none;
}
.breadcrumb-link:hover { color: var(--mint); }
.breadcrumb-current { color: var(--paper); }

.anchor-index {
  position: sticky;
  top: 108px;
  align-self: start;
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(16, 36, 30, 0.72);
}
.anchor-index-title {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--sand);
}
.anchor-link {
  padding-left: 12px;
  border-left: 2px solid rgba(159, 181, 172, 0.22);
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.anchor-link:hover,
.anchor-link[aria-current="true"] {
  color: var(--mint);
  border-left-color: var(--mint);
}

/* ---------- 8. 动效 ---------- */
.js-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.52s ease, transform 0.52s ease;
}
.js-reveal [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 9. 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .anchor-index { position: static; top: auto; }
}

@media (max-width: 980px) {
  .grid--split,
  .grid--thirds,
  .grid--halves { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .footer-top { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .contact-row--wide { grid-column: span 1; }
  .brand-line { font-size: 12px; letter-spacing: 0.06em; }
}

/* ---------- 10. 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .js-reveal [data-reveal] {
    opacity: 1;
    transform: none;
  }
}