/* ============================================================
   沙巴赛场 · 共享外壳样式  /assets/site.css
   深蓝黑基底 + 荧光青导航 + 暖橙数据高亮
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --sb-void: #05070D;
  --sb-surface: #0B1220;
  --sb-card: #131C2E;
  --sb-line: #1E2A40;
  --sb-cyan: #00E0C6;
  --sb-cyan-soft: #7CF6E4;
  --sb-orange: #FF8A3D;
  --sb-orange-soft: #FFC46B;
  --sb-text: #E8EEF7;
  --sb-muted: #9AA9BF;
  --sb-green: #3DDC97;

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

  --sb-r-xs: 10px;
  --sb-r-sm: 14px;
  --sb-r: 18px;
  --sb-r-lg: 28px;
  --sb-pill: 999px;

  --sb-max: 1280px;
  --sb-gutter: clamp(18px, 4vw, 44px);
  --sb-head-h: 72px;
  --sb-ease: cubic-bezier(.22, .61, .36, 1);
  --sb-dur: .18s;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--sb-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--sb-text);
  background-color: var(--sb-void);
  background-image:
    radial-gradient(900px 520px at 86% -8%, rgba(0, 224, 198, .10), transparent 62%),
    radial-gradient(680px 440px at 4% 2%, rgba(255, 138, 61, .055), transparent 60%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
}

/* 夜间灯光颗粒 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: .4;
  background-image: radial-gradient(rgba(232, 238, 247, .055) 1px, transparent 1px);
  background-size: 3px 3px;
}

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

a { color: var(--sb-cyan-soft); }

::selection { background: rgba(0, 224, 198, .28); color: #FFFFFF; }

:focus-visible {
  outline: 2px solid var(--sb-cyan);
  outline-offset: 3px;
  border-radius: var(--sb-r-xs);
}

/* ---------- 跳转链接 ---------- */
.sb-skip {
  position: absolute;
  left: 50%;
  top: -140px;
  z-index: 120;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--sb-pill);
  background: var(--sb-cyan);
  color: #04121A;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transform: translateX(-50%);
  transition: top var(--sb-dur) var(--sb-ease);
}
.sb-skip:focus { top: 10px; }

/* ============================================================
   头部：左右分置悬浮条
   ============================================================ */
.sb-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(5, 7, 13, .86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--sb-line);
}

.sb-header__inner {
  position: relative;
  width: min(100% - 2 * var(--sb-gutter), var(--sb-max));
  margin-inline: auto;
  min-height: var(--sb-head-h);
  padding-block: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(16px, 3vw, 48px);
}

.sb-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background: var(--sb-cyan);
  box-shadow: 0 0 10px rgba(0, 224, 198, .7);
  transition: width .12s linear;
}

/* ---------- 品牌 ---------- */
.sb-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  text-decoration: none;
  color: var(--sb-text);
}

.sb-brand__mark {
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background:
    linear-gradient(135deg,
      var(--sb-cyan) 0 44%,
      transparent 44% 56%,
      var(--sb-orange) 56% 100%);
  box-shadow: inset 0 0 0 1px rgba(0, 224, 198, .38), 0 6px 18px rgba(0, 224, 198, .18);
}

.sb-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.sb-brand__name {
  font-size: 16px;
  font-weight: 900;
  letter-spacing: .08em;
}

.sb-brand__tag {
  font-family: var(--sb-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--sb-muted);
}

/* ---------- 导航 ---------- */
.sb-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 32px);
}

.sb-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.8vw, 26px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.sb-nav__link {
  position: relative;
  display: inline-block;
  min-height: 44px;
  padding: 11px 2px;
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--sb-muted);
  text-decoration: none;
  transition: color var(--sb-dur) var(--sb-ease);
}

.sb-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  height: 2px;
  background: var(--sb-cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--sb-dur) var(--sb-ease);
}

.sb-nav__link:hover { color: var(--sb-text); }
.sb-nav__link[aria-current="page"] { color: var(--sb-text); font-weight: 700; }
.sb-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.sb-nav__aside { display: flex; align-items: center; }

/* ---------- 移动导航按钮 ---------- */
.sb-nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-pill);
  background: rgba(19, 28, 46, .7);
  color: var(--sb-text);
  font-family: var(--sb-mono);
  font-size: 12px;
  letter-spacing: .14em;
  cursor: pointer;
  transition: border-color var(--sb-dur) var(--sb-ease), color var(--sb-dur) var(--sb-ease);
}
.sb-nav-toggle:hover { border-color: var(--sb-cyan); color: var(--sb-cyan-soft); }

.sb-nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: var(--sb-cyan);
  transition: background var(--sb-dur) var(--sb-ease);
}
.sb-nav-toggle__bars::before,
.sb-nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--sb-cyan);
  transition: transform var(--sb-dur) var(--sb-ease);
}
.sb-nav-toggle__bars::before { top: -5px; }
.sb-nav-toggle__bars::after { top: 5px; }

.sb-nav-toggle[aria-expanded="true"] .sb-nav-toggle__bars { background: transparent; }
.sb-nav-toggle[aria-expanded="true"] .sb-nav-toggle__bars::before { transform: translateY(5px) rotate(45deg); }
.sb-nav-toggle[aria-expanded="true"] .sb-nav-toggle__bars::after { transform: translateY(-5px) rotate(-45deg); }

/* ============================================================
   按钮
   ============================================================ */
.sb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--sb-pill);
  font-family: var(--sb-sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--sb-dur) var(--sb-ease),
              color var(--sb-dur) var(--sb-ease),
              border-color var(--sb-dur) var(--sb-ease);
}

.sb-btn--ghost {
  border-color: rgba(255, 138, 61, .65);
  color: var(--sb-orange-soft);
  background: transparent;
}
.sb-btn--ghost:hover {
  background: var(--sb-orange);
  border-color: var(--sb-orange);
  color: #0A0F18;
}

.sb-btn--cyan {
  background: var(--sb-cyan);
  border-color: var(--sb-cyan);
  color: #04121A;
}
.sb-btn--cyan:hover {
  background: var(--sb-cyan-soft);
  border-color: var(--sb-cyan-soft);
}

.sb-btn--quiet {
  background: rgba(19, 28, 46, .72);
  border-color: var(--sb-line);
  color: var(--sb-text);
}
.sb-btn--quiet:hover {
  border-color: var(--sb-cyan);
  color: var(--sb-cyan-soft);
}

/* ============================================================
   页脚：四栏运营台账
   ============================================================ */
.sb-footer {
  position: relative;
  z-index: 2;
  margin-top: clamp(56px, 9vw, 120px);
  border-top: 1px solid var(--sb-line);
  background: linear-gradient(180deg, rgba(11, 18, 32, .72), rgba(5, 7, 13, 1) 62%);
}

.sb-footer__inner {
  width: min(100% - 2 * var(--sb-gutter), var(--sb-max));
  margin-inline: auto;
  padding: clamp(40px, 6vw, 80px) 0 clamp(20px, 3vw, 34px);
}

.sb-footer__top {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2.2fr);
  gap: clamp(28px, 5vw, 72px);
}

.sb-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}
.sb-footer__brand .sb-brand__mark { width: 30px; height: 30px; border-radius: 10px; }

.sb-footer__name {
  margin: 0;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: .08em;
}

.sb-footer__desc {
  margin: 0;
  max-width: 24ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sb-muted);
}

.sb-footer__meta {
  margin: 0;
  font-family: var(--sb-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--sb-muted);
}

.sb-footer__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
}

.sb-footer__col { min-width: 0; }

.sb-footer__col-title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--sb-line);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--sb-text);
}

.sb-footer__num {
  font-family: var(--sb-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .14em;
  color: var(--sb-cyan);
}

.sb-footer__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sb-footer__link {
  font-size: 14px;
  color: var(--sb-muted);
  text-decoration: none;
  transition: color var(--sb-dur) var(--sb-ease);
}
.sb-footer__link:hover { color: var(--sb-cyan-soft); }

.sb-footer__contact {
  font-family: var(--sb-mono);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--sb-muted);
  word-break: break-all;
}

.sb-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: clamp(28px, 5vw, 56px);
  padding-top: 18px;
  border-top: 1px solid var(--sb-line);
}

.sb-footer__icp,
.sb-footer__note {
  margin: 0;
  font-family: var(--sb-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.75;
  color: var(--sb-muted);
}
.sb-footer__icp { color: var(--sb-cyan-soft); }
.sb-footer__note { flex: 1 1 320px; max-width: 62ch; }

/* ============================================================
   通用布局与内容件
   ============================================================ */
.sb-container {
  width: min(100% - 2 * var(--sb-gutter), var(--sb-max));
  margin-inline: auto;
}

.sb-narrow {
  width: min(100% - 2 * var(--sb-gutter), 720px);
  margin-inline: auto;
}

.sb-section { padding-block: clamp(44px, 7vw, 92px); }

.sb-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 20px;
  margin-bottom: clamp(18px, 3vw, 34px);
}

.sb-index {
  font-family: var(--sb-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sb-cyan);
  opacity: .6;
  transition: opacity .28s var(--sb-ease), color .28s var(--sb-ease);
}

.sb-title-xl {
  margin: 0;
  font-size: clamp(28px, 5.4vw, 72px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.02em;
}

.sb-title-md {
  margin: 0;
  font-size: clamp(20px, 2.8vw, 32px);
  font-weight: 800;
  line-height: 1.25;
}

.sb-lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(15px, 1.4vw, 18px);
  color: var(--sb-muted);
}

.sb-prose {
  max-width: 34em;
  color: var(--sb-muted);
}
.sb-prose p { margin: 0 0 1em; }
.sb-prose strong { color: var(--sb-text); }

.sb-mono {
  font-family: var(--sb-mono);
  letter-spacing: .02em;
}

/* ---------- 卡片与网格 ---------- */
.sb-card {
  padding: clamp(18px, 2.4vw, 30px);
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-r-lg);
  background: var(--sb-card);
}
.sb-card--surface { background: var(--sb-surface); }
.sb-card--flat { border-radius: var(--sb-r); }

.sb-grid {
  display: grid;
  gap: clamp(14px, 2vw, 24px);
}
.sb-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.sb-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sb-grid--asym { grid-template-columns: minmax(0, 7fr) minmax(0, 3fr); }

/* ---------- 图片容器（页面阶段放 <img>） ---------- */
.sb-figure {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-r-lg);
  background: var(--sb-surface);
}
.sb-figure > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.sb-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(150deg, rgba(0, 224, 198, .24), rgba(5, 7, 13, .45) 46%, rgba(5, 7, 13, .92));
}
.sb-figure--16x9 { aspect-ratio: 16 / 9; }
.sb-figure--4x3 { aspect-ratio: 4 / 3; }
.sb-figure--3x4 { aspect-ratio: 3 / 4; }
.sb-figure--1x1 { aspect-ratio: 1 / 1; }

.sb-figure__caption {
  position: absolute;
  left: clamp(12px, 1.6vw, 20px);
  bottom: clamp(10px, 1.4vw, 16px);
  z-index: 2;
  margin: 0;
  font-family: var(--sb-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--sb-cyan-soft);
}

/* ---------- 面包屑 ---------- */
.sb-crumbs { padding-top: clamp(14px, 2vw, 24px); }

.sb-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--sb-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--sb-muted);
}
.sb-crumbs__list li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.sb-crumbs__list li + li::before {
  content: "/";
  color: var(--sb-line);
}
.sb-crumbs a {
  color: var(--sb-muted);
  text-decoration: none;
}
.sb-crumbs a:hover { color: var(--sb-cyan-soft); }

/* ---------- 动效状态 ---------- */
.sb-js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .32s var(--sb-ease), transform .32s var(--sb-ease);
}
.sb-js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

[data-section].is-current .sb-index { opacity: 1; }

.sb-js body.sb-nav-open { overflow: hidden; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1100px) {
  .sb-brand__tag { display: none; }
}

@media (max-width: 1024px) {
  .sb-footer__top { grid-template-columns: 1fr; }
  .sb-footer__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  .sb-header__inner { min-height: 64px; }

  .sb-nav-toggle { display: inline-flex; }

  .sb-nav {
    position: fixed;
    inset: 0;
    z-index: 70;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: clamp(20px, 5vh, 40px);
    padding: clamp(96px, 16vh, 140px) var(--sb-gutter) clamp(32px, 6vh, 56px);
    overflow-y: auto;
    background: linear-gradient(160deg, var(--sb-surface), var(--sb-void) 78%);
    transform: translateX(103%);
    visibility: hidden;
    transition: transform .24s var(--sb-ease), visibility .24s var(--sb-ease);
  }

  .sb-nav[data-open] {
    transform: translateX(0);
    visibility: visible;
  }

  .sb-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }
  .sb-nav__list li { width: 100%; }

  .sb-nav__link {
    display: block;
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid var(--sb-line);
    font-size: clamp(22px, 6vw, 30px);
    font-weight: 800;
    letter-spacing: .04em;
    color: var(--sb-text);
  }
  .sb-nav__link::after { display: none; }
  .sb-nav__link[aria-current="page"] {
    color: var(--sb-cyan);
    border-bottom-color: rgba(0, 224, 198, .5);
  }

  .sb-nav__aside { width: 100%; }
  .sb-nav__aside .sb-btn { width: 100%; }
}

@media (max-width: 900px) {
  .sb-grid--2,
  .sb-grid--3,
  .sb-grid--asym { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .sb-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sb-footer__bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 420px) {
  .sb-footer__grid { grid-template-columns: 1fr; }
}

/* ============================================================
   减少动态
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .sb-js [data-reveal] { opacity: 1; transform: none; }
  .sb-progress { transition: none; }
}