/* ==========================================================================
   星空赛场 · 共享样式表 /assets/site.css
   深空天文台数据舱：极细边界、微阴影、清透渐变、刻度轨道
   ========================================================================== */

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

html {
  background: #050A18;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

ul, ol { padding: 0; list-style: none; }

a { color: inherit; text-decoration: none; }

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
}

button { cursor: pointer; }

table { border-collapse: collapse; border-spacing: 0; }

address { font-style: normal; }

[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  /* 色彩 —— 深空底 / 数据舱 / 抬升层 / 刻度线 */
  --void: #050A18;
  --pod: #0B1326;
  --lift: #141F3A;
  --tick: #22304F;

  /* 数据色 */
  --cyan: #49E0CE;
  --amber: #F0A63C;
  --alert: #E4573D;
  --aurora: #57E39B;
  --violet: #8E7BF0;

  /* 文字 */
  --paper: #E9EFF8;
  --mist: #8C9AB3;
  --mist-dim: #6F7E97;

  /* 透明数据色 */
  --cyan-a08: rgba(73, 224, 206, .08);
  --cyan-a16: rgba(73, 224, 206, .16);
  --cyan-a40: rgba(73, 224, 206, .40);
  --amber-a08: rgba(240, 166, 60, .08);
  --amber-a40: rgba(240, 166, 60, .40);
  --alert-a08: rgba(228, 87, 61, .08);
  --alert-a40: rgba(228, 87, 61, .42);
  --aurora-a08: rgba(87, 227, 155, .08);
  --aurora-a40: rgba(87, 227, 155, .40);
  --violet-a08: rgba(142, 123, 240, .08);
  --violet-a40: rgba(142, 123, 240, .40);

  /* 排版 */
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB",
               "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei",
               system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-num: ui-monospace, "SFMono-Regular", "JetBrains Mono", "Roboto Mono",
              Menlo, Consolas, "Liberation Mono", monospace;

  --fs-note: 12px;
  --fs-meta: 14px;
  --fs-body: 15px;
  --fs-h4: 20px;
  --fs-h3: 32px;
  --fs-num: 56px;
  --fs-hero: 88px;

  /* 间距 */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;

  /* 结构 */
  --wrap: 1320px;
  --gutter: clamp(16px, 3.2vw, 40px);
  --radius: 2px;
  --hairline: 1px solid var(--tick);
  --shadow-1: 0 1px 2px rgba(0, 0, 0, .5);
  --shadow-2: 0 18px 34px rgba(0, 0, 0, .55);

  /* 动效 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur: 220ms;
  --dur-fast: 160ms;
}

/* ---------- 3. 基础排版 ---------- */
body {
  background: transparent;
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.9;
  letter-spacing: .01em;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 底层观测轨道：固定不随滚动，退到内容之后 */
body::before {
  content: "";
  position: fixed;
  inset: -12% -12% 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 620px at 78% 10%, rgba(73, 224, 206, .07), transparent 62%),
    radial-gradient(760px 560px at 10% 82%, rgba(142, 123, 240, .055), transparent 66%),
    radial-gradient(520px 420px at 46% 118%, rgba(87, 227, 155, .05), transparent 70%);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: .06em;
}

h1 { font-size: clamp(28px, 4vw, 44px); }
h2 { font-size: clamp(22px, 2.6vw, 32px); }
h3 { font-size: var(--fs-h4); }

p { margin-bottom: .9em; }
p:last-child { margin-bottom: 0; }

small { font-size: var(--fs-note); }

strong, b { font-weight: 700; }

code, kbd, samp {
  font-family: var(--font-num);
  font-size: .92em;
  padding: 1px 5px;
  border: 1px solid var(--tick);
  border-radius: var(--radius);
  background: var(--lift);
  color: var(--cyan);
}

hr {
  height: 1px;
  border: 0;
  background: var(--tick);
  margin: var(--sp-7) 0;
}

::selection {
  background: rgba(73, 224, 206, .3);
  color: var(--paper);
}

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

/* ---------- 4. 容器与栅格 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
}

.split--narrow-rail { grid-template-columns: minmax(0, 2.6fr) minmax(0, 9.4fr); }
.split--even { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.split--reverse { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); }

.split__rail {
  position: relative;
  min-width: 0;
}

.split__rail::after {
  content: "";
  position: absolute;
  top: 4px;
  bottom: 4px;
  right: calc(-1 * clamp(14px, 2vw, 32px));
  width: 1px;
  background: linear-gradient(180deg, var(--tick), rgba(34, 48, 79, 0));
}

.split__main { min-width: 0; }

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-6);
}

.ruled {
  padding-top: var(--sp-7);
  border-top: var(--hairline);
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -80px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--amber);
  color: #1A1002;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  border-radius: var(--radius);
  transition: top var(--dur-fast) var(--ease);
}

.skip-link:focus { top: 10px; }

/* ---------- 5. 页头：紧凑命令栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--void);
  border-bottom: 1px solid var(--tick);
}

.cmdbar {
  position: relative;
}

.cmdbar__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-inline: var(--gutter);
  min-height: 62px;
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 36px);
}

.cmdbar__brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

/* 品牌：一圈星轨加一个中心光点 */
.brandmark {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brandmark__glyph {
  position: relative;
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--tick);
  background:
    radial-gradient(circle at 50% 50%, var(--cyan) 0 1.6px, transparent 2.2px),
    conic-gradient(from 210deg, transparent 0 56%, rgba(73, 224, 206, .95) 56% 63%, transparent 63% 100%);
  box-shadow: 0 0 12px rgba(73, 224, 206, .26);
  transition: box-shadow var(--dur) var(--ease);
}

.brandmark:hover .brandmark__glyph { box-shadow: 0 0 18px rgba(73, 224, 206, .45); }

.brandmark__text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
  min-width: 0;
}

.brandmark__name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--paper);
  white-space: nowrap;
}

.brandmark__sub {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mist);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.verchip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border: 1px solid var(--tick);
  border-radius: var(--radius);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .04em;
  white-space: nowrap;
}

.verchip__k { color: var(--mist-dim); }
.verchip__v { color: var(--cyan); }

/* 移动导航按钮 */
.navtoggle {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding: 8px 12px;
  border: 1px solid var(--tick);
  border-radius: var(--radius);
  color: var(--paper);
  font-size: 12.5px;
  letter-spacing: .1em;
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.navtoggle:hover { border-color: var(--cyan); color: var(--cyan); }

.navtoggle__bars {
  position: relative;
  flex: 0 0 16px;
  width: 16px;
  height: 11px;
}

.navtoggle__bars::before,
.navtoggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--dur) var(--ease);
}

.navtoggle__bars::before { top: 1px; }
.navtoggle__bars::after { bottom: 1px; }

/* 主导航 */
.cmdnav {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(12px, 2vw, 28px);
  min-width: 0;
}

.cmdnav__list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: clamp(2px, 1.4vw, 20px);
}

.cmdnav__list a {
  position: relative;
  display: inline-block;
  padding: 9px 1px;
  font-size: var(--fs-meta);
  letter-spacing: .05em;
  color: var(--mist);
  transition: color var(--dur-fast) var(--ease);
}

.cmdnav__list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 3px;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform var(--dur) var(--ease);
}

.cmdnav__list a:hover { color: var(--paper); }
.cmdnav__list a:hover::after { transform: scaleX(1); }

.cmdnav__list a[aria-current="page"] {
  color: var(--paper);
  font-weight: 600;
}

.cmdnav__list a[aria-current="page"]::after { transform: scaleX(1); }

/* 口径状态提示条 */
.statusstrip {
  background: var(--pod);
  border-bottom: 1px solid var(--tick);
}

.statusstrip__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 6px var(--gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 24px;
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--mist-dim);
}

.statusstrip__unit {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
}

.statusstrip__unit b {
  font-family: var(--font-num);
  font-weight: 600;
  font-size: 12.5px;
  letter-spacing: 0;
  color: var(--cyan);
}

.statusstrip__unit--alert b { color: var(--alert); }
.statusstrip__unit--amber b { color: var(--amber); }

/* 滚动进度刻度 */
.progressrail {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}

.progressrail__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan), var(--aurora));
  opacity: .9;
}

/* 移动端 [data-open] 状态 */
@media (max-width: 900px) {
  .cmdbar__inner {
    min-height: 60px;
    gap: 12px;
  }

  .cmdbar__brand { flex: 1 1 auto; gap: 10px; }

  .navtoggle { display: inline-flex; }

  .cmdnav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 6px var(--gutter) 22px;
    background: var(--pod);
    border-bottom: 1px solid var(--tick);
    box-shadow: var(--shadow-2);
    max-height: 78vh;
    overflow-y: auto;
  }

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

  .site-header[data-open] .navtoggle {
    border-color: var(--cyan);
    color: var(--cyan);
  }

  .site-header[data-open] .navtoggle__bars::before {
    transform: translateY(3.5px) rotate(45deg);
  }

  .site-header[data-open] .navtoggle__bars::after {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .cmdnav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .cmdnav__list li + li { border-top: 1px solid rgba(34, 48, 79, .6); }

  .cmdnav__list a {
    position: relative;
    display: block;
    padding: 14px 2px;
    font-size: 15px;
  }

  .cmdnav__list a::after { display: none; }

  .cmdnav__list a[aria-current="page"] {
    color: var(--cyan);
    padding-left: 16px;
  }

  .cmdnav__list a[aria-current="page"]::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    margin-top: -3px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 8px rgba(73, 224, 206, .6);
  }

  .cmdnav__cta {
    width: 100%;
    margin-top: 18px;
    padding-block: 12px;
  }
}

@media (max-width: 1120px) {
  .verchip { display: none; }
  .brandmark__sub { display: none; }
}

@media (max-width: 1024px) {
  .cmdnav__list a { font-size: 13px; }
  .cmdnav__list { gap: 2px 12px; }
}

/* ---------- 6. 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--tick);
  border-radius: var(--radius);
  background: transparent;
  color: var(--paper);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  line-height: 1.4;
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              background-color var(--dur-fast) var(--ease),
              transform var(--dur-fast) var(--ease);
}

.btn:hover { border-color: var(--cyan); color: var(--cyan); }
.btn:active { transform: translateY(1px); }

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

.btn--solid:hover {
  background: #6BEADB;
  border-color: #6BEADB;
  color: #04121A;
}

.btn--amber {
  border-color: var(--amber-a40);
  color: var(--amber);
  background: var(--amber-a08);
}

.btn--amber:hover {
  border-color: var(--amber);
  color: #FFF3E0;
  background: rgba(240, 166, 60, .18);
}

.btn--ghost { color: var(--mist); border-color: var(--tick); }

.btn--ghost:hover {
  color: var(--paper);
  border-color: #31426A;
}

/* ---------- 7. 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-num);
  font-size: var(--fs-note);
  letter-spacing: .06em;
  color: var(--mist-dim);
}

.crumbs a {
  color: var(--mist);
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.crumbs a:hover { color: var(--cyan); border-bottom-color: var(--cyan); }

.crumbs__sep { color: var(--tick); }

.crumbs [aria-current="page"] { color: var(--paper); }

/* ---------- 8. 标题组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
}

.eyebrow--amber { color: var(--amber); }
.eyebrow--alert { color: var(--alert); }
.eyebrow--mist { color: var(--mist-dim); }

.section-title {
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 700;
  letter-spacing: .05em;
  line-height: 1.25;
}

.section-lede {
  margin-top: 14px;
  max-width: 62ch;
  font-size: var(--fs-body);
  line-height: 1.9;
  color: var(--mist);
}

/* ---------- 9. 卡片面板 ---------- */
.panel {
  background: var(--pod);
  border: var(--hairline);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: 15px 20px;
  border-bottom: var(--hairline);
}

.panel__title {
  font-size: var(--fs-meta);
  font-weight: 700;
  letter-spacing: .1em;
}

.panel__body { padding: 20px; }
.panel__body--flush { padding: 0; }

/* ---------- 10. 数据锚点 ---------- */
.metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.metric__val {
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(34px, 4.6vw, var(--fs-num));
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

.metric__val--cyan { color: var(--cyan); }
.metric__val--amber { color: var(--amber); }
.metric__val--alert { color: var(--alert); }
.metric__val--aurora { color: var(--aurora); }

.metric--hero .metric__val {
  font-size: clamp(48px, 9vw, var(--fs-hero));
  letter-spacing: -.02em;
}

.metric__unit {
  margin-left: .25em;
  font-size: .32em;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--mist);
}

.metric__label {
  font-size: var(--fs-note);
  letter-spacing: .1em;
  color: var(--mist);
}

/* ---------- 11. 标签与状态 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border: 1px solid var(--tick);
  border-radius: var(--radius);
  font-size: 11.5px;
  letter-spacing: .06em;
  line-height: 1.6;
  color: var(--mist);
  white-space: nowrap;
}

.tag--alert { color: var(--alert); border-color: var(--alert-a40); background: var(--alert-a08); }
.tag--cyan { color: var(--cyan); border-color: var(--cyan-a40); background: var(--cyan-a08); }
.tag--amber { color: var(--amber); border-color: var(--amber-a40); background: var(--amber-a08); }
.tag--aurora { color: var(--aurora); border-color: var(--aurora-a40); background: var(--aurora-a08); }
.tag--violet { color: var(--violet); border-color: var(--violet-a40); background: var(--violet-a08); }

/* 伤停状态：颜色之外必须有形状区分 */
.statusdot {
  display: inline-block;
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mist);
}

.statusdot--out {
  background: var(--alert);
  border-radius: 1px;
  transform: rotate(45deg);
}

.statusdot--doubt {
  background: var(--amber);
  border-radius: 50%;
}

.statusdot--fit {
  background: var(--aurora);
  border-radius: 50%;
}

.statusdot--data {
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--cyan-a16);
}

/* ---------- 12. 图形与图片容器 ---------- */
.figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: var(--hairline);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 22% 12%, rgba(73, 224, 206, .1), transparent 58%),
    linear-gradient(160deg, var(--lift), var(--void) 74%);
}

.figure__media {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 180px;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05) brightness(.8);
}

.figure--wide .figure__media { aspect-ratio: 16 / 7; height: auto; min-height: 0; }
.figure--square .figure__media { aspect-ratio: 1 / 1; height: auto; min-height: 0; }
.figure--tall .figure__media { aspect-ratio: 3 / 4; height: auto; min-height: 0; }

.figure__caption {
  position: relative;
  padding: 10px 14px;
  border-top: var(--hairline);
  background: var(--pod);
  font-size: var(--fs-note);
  letter-spacing: .05em;
  color: var(--mist);
}

.figure__mark {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
}

/* 无图占位：只用刻度与轨道线暗示结构 */
.figure--empty::after {
  content: attr(data-placeholder);
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  text-align: center;
  color: var(--tick);
  background-image:
    linear-gradient(90deg, rgba(34, 48, 79, .55) 1px, transparent 1px),
    linear-gradient(0deg, rgba(34, 48, 79, .35) 1px, transparent 1px);
  background-size: 48px 100%, 100% 48px;
}

/* ---------- 13. 主题筛选 ---------- */
.filterbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px 0;
  border-top: var(--hairline);
  border-bottom: var(--hairline);
}

.filterbar__label {
  margin-right: 6px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mist-dim);
}

.fbtn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border: 1px solid var(--tick);
  border-radius: var(--radius);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--mist);
  transition: color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              background-color var(--dur-fast) var(--ease);
}

.fbtn:hover { color: var(--paper); border-color: #31426A; }

.fbtn[aria-pressed="true"] {
  color: var(--amber);
  border-color: var(--amber-a40);
  background: var(--amber-a08);
}

.fbtn__n,
.fbtn [data-count] {
  font-family: var(--font-num);
  font-size: 11px;
  opacity: .75;
}

.filterbar__empty {
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--mist);
}

[data-filter-item] { transition: opacity var(--dur) var(--ease); }

/* ---------- 14. 表格 ---------- */
.datatable__scroll {
  width: 100%;
  overflow-x: auto;
  border: var(--hairline);
  border-radius: var(--radius);
  background: var(--pod);
}

.datatable {
  width: 100%;
  min-width: 560px;
  font-size: 13.5px;
}

.datatable caption {
  padding: 14px 18px 0;
  text-align: left;
  font-size: var(--fs-note);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist-dim);
}

.datatable th {
  padding: 11px 14px;
  text-align: left;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--mist);
  white-space: nowrap;
  border-bottom: var(--hairline);
}

.datatable td {
  padding: 12px 14px;
  vertical-align: middle;
  border-bottom: 1px solid rgba(34, 48, 79, .5);
}

.datatable tbody tr { transition: background-color var(--dur-fast) var(--ease); }
.datatable tbody tr:hover { background: var(--lift); }
.datatable tbody tr:last-child td { border-bottom: 0; }

.datatable .num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  color: var(--paper);
}

/* ---------- 15. 旁注与轨道列表 ---------- */
.note {
  padding-left: 16px;
  border-left: 1px solid var(--tick);
  font-size: 13px;
  line-height: 1.85;
  color: var(--mist);
}

.note strong { color: var(--paper); font-weight: 600; }
.note--amber { border-left-color: var(--amber-a40); }
.note--alert { border-left-color: var(--alert-a40); }

.ticklist {
  position: relative;
  padding-left: 18px;
}

.ticklist::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--tick), rgba(34, 48, 79, 0));
}

.ticklist > li {
  position: relative;
  padding-bottom: 18px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.ticklist > li:last-child { padding-bottom: 0; }

.ticklist > li::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--void);
  border: 1px solid var(--cyan);
}

.ticklist--alert > li::before { border-color: var(--alert); }
.ticklist--amber > li::before { border-color: var(--amber); }

/* ---------- 16. 显现 ---------- */
.js-ready .reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.js-ready .reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 17. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: var(--sp-9);
  background: var(--void);
  border-top: 1px solid var(--tick);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(38%, 420px);
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), rgba(73, 224, 206, 0));
}

.station__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 76px) var(--gutter) clamp(28px, 4vw, 44px);
  display: grid;
  grid-template-columns: minmax(240px, 1.5fr) repeat(3, minmax(110px, .75fr));
  gap: clamp(24px, 3.6vw, 56px);
}

.station__brand { min-width: 0; }

.station__seal {
  display: block;
  width: 26px;
  height: 26px;
  margin-bottom: 16px;
  border-radius: 50%;
  border: 1px solid var(--tick);
  background:
    radial-gradient(circle at 50% 50%, var(--cyan) 0 1.6px, transparent 2.2px),
    conic-gradient(from 210deg, transparent 0 56%, rgba(73, 224, 206, .95) 56% 63%, transparent 63% 100%);
}

.station__name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--paper);
  margin-bottom: 4px;
}

.station__sub {
  font-size: var(--fs-note);
  letter-spacing: .06em;
  color: var(--mist-dim);
  margin-bottom: 16px;
}

.station__note {
  max-width: 34ch;
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--mist);
  padding-left: 14px;
  border-left: 1px solid var(--tick);
}

.station__coltitle {
  font-family: var(--font-num);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mist-dim);
  margin-bottom: 16px;
}

.station__list li { margin-bottom: 10px; }
.station__list li:last-child { margin-bottom: 0; }

.station__link {
  position: relative;
  display: inline-block;
  font-size: 13.5px;
  letter-spacing: .04em;
  color: var(--mist);
  transition: color var(--dur-fast) var(--ease), padding-left var(--dur-fast) var(--ease);
}

.station__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 5px;
  height: 1px;
  background: var(--cyan);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease);
}

.station__link:hover {
  color: var(--paper);
  padding-left: 10px;
}

.station__link:hover::before { opacity: 1; }

/* 联系与纠错 */
.station__contact {
  grid-column: 1 / -1;
  margin-top: 6px;
  padding-top: 22px;
  border-top: 1px solid rgba(34, 48, 79, .6);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px clamp(20px, 3vw, 40px);
}

.station__line {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  margin: 0;
}

.station__line--wide { grid-column: 1 / -1; }

.station__key {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist-dim);
}

.station__val {
  font-size: 13px;
  line-height: 1.8;
  letter-spacing: .03em;
  color: var(--paper);
  word-break: break-word;
}

.station__line--wide .station__val {
  max-width: 76ch;
  color: var(--mist);
}

/* 底部备案行 */
.station__base {
  border-top: 1px solid rgba(34, 48, 79, .6);
  background: var(--pod);
}

.station__base-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 18px var(--gutter) 34px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 28px;
  font-size: var(--fs-note);
  letter-spacing: .05em;
  color: var(--mist-dim);
}

.station__legal { white-space: nowrap; }

.station__legal--grow {
  flex: 1 1 280px;
  white-space: normal;
  color: var(--mist-dim);
}

@media (max-width: 900px) {
  .station__inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .station__brand { grid-column: 1 / -1; }
  .station__note { max-width: none; }
}

@media (max-width: 560px) {
  .station__inner { grid-template-columns: 1fr; gap: 30px; }
  .station__base-inner { flex-direction: column; gap: 10px; }
}

/* ---------- 18. 响应式栅格 ---------- */
@media (max-width: 1024px) {
  .split { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); }
  .split--narrow-rail { grid-template-columns: minmax(0, 3.4fr) minmax(0, 8.6fr); }
  .split--reverse { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
}

@media (max-width: 900px) {
  .split,
  .split--narrow-rail,
  .split--even,
  .split--reverse {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--sp-6);
  }

  .split__rail::after { display: none; }
}

/* ---------- 19. 打印与减动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .js-ready .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  body::before { display: none; }
  .site-header,
  .progressrail,
  .filterbar,
  .skip-link { display: none !important; }
  body { background: #fff; color: #000; }
}