/* ============================================================
   Site Kit — safe-wanbo-sports.com.cn
   夜间结算控制台 / 蓝图网格 / 近单色 + 霓虹青
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, li, figure, blockquote, dl, dd {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
}

table { border-collapse: collapse; width: 100%; }

/* ---------- 2. Design tokens ---------- */
:root {
  --ink-900: #030b16;
  --ink-800: #061423;
  --ink-700: #0a1c30;
  --ink-600: #102a44;
  --ink-500: #17384f;

  --cyan: #35e6d0;
  --cyan-dim: #17a394;
  --amber: #ffb020;
  --red: #ff3d5e;
  --violet: #a05cff;
  --violet-deep: #ff4d8d;

  --text: #d9e6f2;
  --text-strong: #f4f9ff;
  --muted: #7e93a8;
  --muted-deep: #526a82;

  --line-soft: rgba(120, 190, 215, 0.16);
  --line-strong: rgba(53, 230, 208, 0.34);

  --shadow-hard: 6px 6px 0 rgba(0, 0, 0, 0.55);
  --shadow-soft: 0 18px 42px rgba(0, 0, 0, 0.45);

  --header-h: 72px;
  --wrap-max: 1240px;
  --radius: 2px;

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-num: ui-monospace, "SFMono-Regular", Menlo, Consolas,
    "Liberation Mono", "Courier New", monospace;
}

/* ---------- 3. Base typography ---------- */
body {
  min-height: 100vh;
  padding-top: calc(var(--header-h) + 1px);
  background-color: var(--ink-900);
  background-image:
    linear-gradient(rgba(53, 230, 208, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 230, 208, 0.045) 1px, transparent 1px),
    radial-gradient(1100px 560px at 10% -10%, rgba(53, 230, 208, 0.10), transparent 60%),
    radial-gradient(900px 520px at 94% 4%, rgba(160, 92, 255, 0.10), transparent 62%);
  background-size: 64px 64px, 64px 64px, auto, auto;
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  letter-spacing: 0.01em;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-strong);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: 0.02em;
}

p { text-wrap: pretty; }

a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--text-strong); }

strong, b { color: var(--text-strong); font-weight: 700; }

code, kbd, samp, pre { font-family: var(--font-num); font-size: 0.9em; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 4. Layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2.5rem);
}

.section { padding-block: clamp(2.5rem, 6vw, 4.5rem); }

.section-head {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.4rem);
  padding-left: 1rem;
  border-left: 3px solid var(--cyan);
}

.section-eyebrow {
  font-family: var(--font-num);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--cyan);
}

.section-title {
  font-size: clamp(1.45rem, 3.2vw, 2.2rem);
  font-weight: 800;
  letter-spacing: 0.03em;
}

.section-lede {
  max-width: 64ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--muted);
}

.grid { display: grid; gap: 1.25rem; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--split { grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); }

.divider {
  height: 1px;
  border: 0;
  background: var(--line-soft);
  margin-block: clamp(1.6rem, 4vw, 2.6rem);
}

.num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.72rem 1.25rem;
  border: 2px solid var(--cyan);
  background: transparent;
  color: var(--cyan);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  cursor: pointer;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.5);
  transition: transform 0.16s ease, box-shadow 0.16s ease,
    background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.55);
  color: var(--cyan);
}

.btn:active {
  transform: translate(0, 0);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.5);
}

.btn--solid { background: var(--cyan); color: var(--ink-900); }
.btn--solid:hover { background: #55f0dd; color: var(--ink-900); }

.btn--ghost { border-color: var(--line-strong); color: var(--text); }
.btn--ghost:hover { border-color: var(--cyan); color: var(--text-strong); }

.btn--amber { border-color: var(--amber); color: var(--amber); }
.btn--amber.btn--solid { background: var(--amber); color: var(--ink-900); }
.btn--amber.btn--solid:hover { background: #ffc44f; color: var(--ink-900); }

/* ---------- 6. Tags ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.18rem 0.55rem;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  border: 1px solid currentColor;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius);
  white-space: nowrap;
}

.tag--cyan { color: var(--cyan); }
.tag--amber { color: var(--amber); }
.tag--red { color: var(--red); }
.tag--violet { color: var(--violet-deep); }

/* ---------- 7. Cards ---------- */
.card {
  position: relative;
  padding: 1.25rem 1.25rem 1.4rem;
  background: linear-gradient(180deg, rgba(16, 42, 68, 0.85), rgba(6, 20, 35, 0.92));
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
}

.card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 18px;
  height: 18px;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
  pointer-events: none;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.7rem;
}

.card-title {
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.card-body {
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--muted);
}

.card-tag {
  font-family: var(--font-num);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  color: var(--cyan);
  white-space: nowrap;
}

/* ---------- 8. Media containers (page stage) ---------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  background: linear-gradient(160deg, var(--ink-700), var(--ink-900));
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(53, 230, 208, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 230, 208, 0.07) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--3x2 { aspect-ratio: 3 / 2; }
.media--1x1 { aspect-ratio: 1 / 1; }

/* ---------- 9. Breadcrumb ---------- */
.breadcrumb { margin-bottom: clamp(1.2rem, 3vw, 2rem); }

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

.breadcrumb-item { display: inline-flex; align-items: center; gap: 0.5rem; }

.breadcrumb-link { color: var(--cyan); }
.breadcrumb-link:hover { color: var(--text-strong); }

.breadcrumb-sep { color: var(--muted-deep); }

.breadcrumb-current { color: var(--muted); }

/* ---------- 10. Header ---------- */
.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 200;
  padding: 0.6rem 1rem;
  background: var(--cyan);
  color: var(--ink-900);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  border: 2px solid var(--ink-900);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.5);
  transform: translateY(-200%);
  transition: transform 0.18s ease;
}

.skip-link:focus { transform: translateY(0); color: var(--ink-900); }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(3, 11, 22, 0.9);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-left: 1px solid var(--line-soft);
  border-right: 1px solid var(--line-soft);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  flex: 0 0 auto;
  min-width: 0;
  color: var(--text-strong);
}

.brand:hover { color: var(--text-strong); }

.brand-mark {
  position: relative;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border: 2px solid var(--cyan);
  box-shadow: 3px 3px 0 rgba(53, 230, 208, 0.22);
  background: rgba(53, 230, 208, 0.06);
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 7px;
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 58%, 58% 100%, 0 100%);
}

.brand-mark::after {
  content: "";
  position: absolute;
  right: -8px;
  bottom: -8px;
  width: 8px;
  height: 8px;
  background: var(--amber);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.08;
  min-width: 0;
}

.brand-name {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.brand-sub {
  font-family: var(--font-num);
  font-size: 0.6rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line-strong);
  background: rgba(53, 230, 208, 0.06);
  color: var(--text-strong);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  cursor: pointer;
  transition: background-color 0.16s ease, border-color 0.16s ease;
}

.nav-toggle:hover { background: rgba(53, 230, 208, 0.14); border-color: var(--cyan); }

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 18px;
  height: 12px;
}

.nav-toggle-bars span {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--cyan);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle-bars span:nth-child(1) { top: 0; }
.nav-toggle-bars span:nth-child(2) { top: 5px; }
.nav-toggle-bars span:nth-child(3) { top: 10px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.nav-toggle-label { line-height: 1; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.nav-item { display: block; }

.nav-link {
  position: relative;
  display: block;
  padding: 0.5rem 0.72rem;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--muted);
  border: 1px solid transparent;
  transition: color 0.16s ease, background-color 0.16s ease, border-color 0.16s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.72rem;
  right: 0.72rem;
  bottom: 0.26rem;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.2s ease;
}

.nav-link:hover {
  color: var(--text-strong);
  background: rgba(53, 230, 208, 0.08);
}

.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 3px 3px 0 rgba(53, 230, 208, 0.25);
}

.nav-link[aria-current="page"]::after { transform: scaleX(0); }

.nav-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding-left: 1rem;
  margin-left: 0.3rem;
  border-left: 1px solid var(--line-soft);
  font-family: var(--font-num);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--cyan-dim);
  white-space: nowrap;
}

.nav-meta-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(53, 230, 208, 0.16);
}

.scan-rail {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  pointer-events: none;
}

.scan-rail-fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--amber) 68%, var(--red) 100%);
  box-shadow: 0 0 10px rgba(53, 230, 208, 0.55);
}

/* ---------- 11. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(3rem, 8vw, 6rem);
  background: var(--ink-800);
  border-top: 4px solid var(--cyan);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(53, 230, 208, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 230, 208, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.footer-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.5fr;
  gap: 2.2rem;
  padding-top: clamp(2.2rem, 5vw, 3.2rem);
  padding-bottom: 2.4rem;
}

.footer-brand { min-width: 0; }

.footer-brand-mark {
  display: inline-block;
  margin-bottom: 0.85rem;
  padding: 0.26rem 0.55rem;
  background: var(--cyan);
  color: var(--ink-900);
  font-family: var(--font-num);
  font-size: 0.68rem;
  letter-spacing: 0.26em;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.5);
}

.footer-brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-strong);
}

.footer-brand-desc {
  margin-top: 0.4rem;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.footer-note {
  margin-top: 0.95rem;
  max-width: 34ch;
  font-size: 0.78rem;
  line-height: 1.8;
  color: var(--muted-deep);
}

.footer-col { min-width: 0; }

.footer-col-title {
  padding-bottom: 0.55rem;
  margin-bottom: 0.9rem;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-num);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--cyan);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer-list a {
  display: inline-block;
  font-size: 0.86rem;
  color: var(--muted);
  transition: color 0.16s ease, padding-left 0.16s ease;
}

.footer-list a:hover {
  color: var(--text-strong);
  padding-left: 0.35rem;
}

.footer-list span {
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--muted);
  word-break: break-word;
}

.footer-base {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.4rem;
  padding-top: 1.1rem;
  padding-bottom: 1.6rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--muted-deep);
}

.footer-icp { white-space: nowrap; }

.footer-copy { margin-left: auto; }

/* ---------- 12. Reveal ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

html.js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ---------- 13. Responsive ---------- */
@media (max-width: 1180px) {
  .nav-meta { display: none; }
}

@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--split { grid-template-columns: minmax(0, 1fr); }
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.9rem;
  }
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.4rem 0 0.9rem;
    background: var(--ink-800);
    border-bottom: 2px solid var(--cyan);
    box-shadow: 0 26px 44px rgba(0, 0, 0, 0.6);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }

  .site-nav[data-open] { display: flex; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0 1rem;
  }

  .nav-link {
    padding: 0.85rem 0.6rem;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--line-soft);
  }

  .nav-link::after { display: none; }

  .nav-link[aria-current="page"] { box-shadow: none; }
}

@media (max-width: 760px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 620px) {
  body { font-size: 14.5px; }

  .footer-grid { grid-template-columns: minmax(0, 1fr); }

  .footer-base {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-copy { margin-left: 0; }
}

@media (max-width: 420px) {
  .brand-sub { display: none; }
  .brand-name { font-size: 0.94rem; letter-spacing: 0.04em; }
  .nav-toggle-label { display: none; }
  .header-inner { gap: 0.5rem; }
}

/* ---------- 14. Reduced motion ---------- */
@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;
  }

  html.js [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .btn:hover { transform: none; }
}