/* ==========================================================================
   极速竞速体验与策略分析 — 赛道竞速风
   近黑底 + 荧光粉/青；仪表环、四象限、分段赛道
   ========================================================================== */

body.page-jingsu {
  --ink: #eef1f7;
  --ink-2: #b6bdcc;
  --muted: #838da1;
  --line: rgba(255, 255, 255, .11);
  --paper: #08080d;
  --shell: #0d0d16;
  --night: #050508;
  --accent: #ff2d78;
  --accent-2: #22d3ee;
  --accent-soft: rgba(255, 45, 120, .08);
  --focus: #22d3ee;
  --header-bg: rgba(8, 8, 13, .9);
  overflow-x: hidden;
}

.page-jingsu .brand-mark { background: #ff2d78; color: #08080d; }
.page-jingsu .btn-primary { color: #fff; background: #ff2d78; box-shadow: 0 12px 30px rgba(255, 45, 120, .28); }
.page-jingsu .btn-primary:hover { background: #ff4b8c; }
.page-jingsu .btn-login { background: #ff2d78; color: #fff; }
.page-jingsu .btn-room { color: #d7dce8; }
.page-jingsu .btn-room b { color: #22d3ee; }
.page-jingsu .nav-toggle { background: rgba(255, 255, 255, .04); }

/* ---------- Hero ---------- */
.js-hero {
  position: relative;
  padding: 70px 0 66px;
  background:
    radial-gradient(640px 420px at 16% 16%, rgba(255, 45, 120, .18), transparent 66%),
    radial-gradient(600px 420px at 88% 76%, rgba(34, 211, 238, .14), transparent 68%),
    linear-gradient(180deg, #08080d, #0b0912);
  border-bottom: 1px solid var(--line);
}
.js-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(255, 255, 255, .035) 0 1px, transparent 1px 90px);
  mask-image: radial-gradient(70% 80% at 50% 40%, #000, transparent 100%);
  pointer-events: none;
}
.js-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 52px;
  align-items: center;
}
.js-crumb { color: #838da1; }
.js-crumb a:hover { color: #ff2d78; }
.js-kicker {
  display: inline-block;
  margin-top: 20px;
  padding: 5px 12px;
  border: 1px solid rgba(255, 45, 120, .4);
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 2.4px;
  color: #ff7aa8;
}
.js-hero h1 {
  margin-top: 16px;
  font-size: clamp(38px, 4.8vw, 60px);
  line-height: 1.1;
  font-weight: 900;
  letter-spacing: -.6px;
  color: #fff;
}
.js-hero h1 em {
  font-style: normal;
  background: linear-gradient(92deg, #ff2d78, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.js-lead {
  margin-top: 22px;
  max-width: 570px;
  font-size: 15px;
  line-height: 1.95;
  color: #b6bdcc;
}
.js-lead strong { color: #fff; }
.js-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.js-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 26px;
  font-family: var(--mono);
  font-size: 12px;
  color: #6f7889;
}
.js-meta span { padding-left: 14px; position: relative; }
.js-meta span::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: #ff2d78;
  transform: translateY(-50%);
}
.js-figure {
  border: 1px solid rgba(255, 45, 120, .3);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0, 0, 0, .65);
}

/* ---------- 通用 ---------- */
.js-sec { padding: 74px 0; }
.js-alt { background: #0b0b14; border-block: 1px solid var(--line); }
.js-h2,
.js-head h2 {
  font-size: clamp(25px, 2.8vw, 34px);
  line-height: 1.28;
  font-weight: 800;
  color: #fff;
}
.js-sub { margin-top: 10px; font-size: 14px; color: var(--muted); }
.js-head { margin-bottom: 34px; max-width: 760px; }
.js-head p { margin-top: 10px; font-size: 14px; line-height: 1.9; color: var(--muted); }
.js-small { margin-top: 16px; font-size: 12.5px; color: #6f7889; }
.js-narrow { max-width: 900px; }

/* ---------- 仪表 ---------- */
.js-gauges {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 34px;
}
.js-gauge {
  padding: 28px 20px 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(170deg, #0f0f1b, #0a0a12);
  text-align: center;
}
.js-gauge-ring {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: conic-gradient(from 220deg, #ff2d78 calc(var(--v) * 1%), #1b1b2a 0);
  display: grid;
  place-items: center;
}
.js-gauge-ring::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  background: #0a0a12;
}
.js-gauge-ring b {
  position: relative;
  z-index: 1;
  font-family: var(--mono);
  font-size: 30px;
  color: #fff;
}
.js-gauge:nth-child(2) .js-gauge-ring { background: conic-gradient(from 220deg, #22d3ee calc(var(--v) * 1%), #1b1b2a 0); }
.js-gauge:nth-child(3) .js-gauge-ring { background: conic-gradient(from 220deg, #ff7aa8 calc(var(--v) * 1%), #1b1b2a 0); }
.js-gauge:nth-child(4) .js-gauge-ring { background: conic-gradient(from 220deg, #9bf3ff calc(var(--v) * 1%), #1b1b2a 0); }
.js-gauge h3 { font-size: 15px; font-weight: 700; color: #f0f3f9; margin-bottom: 5px; }
.js-gauge p { font-size: 12px; line-height: 1.7; color: #6f7889; }

/* ---------- 三层 ---------- */
.js-layers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.js-layers article {
  position: relative;
  padding: 30px 28px;
  border: 1px solid var(--line);
  border-left: 2px solid #22d3ee;
  border-radius: 4px;
  background: rgba(255, 255, 255, .02);
}
.js-layers span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: #22d3ee;
}
.js-layers h3 { margin: 9px 0 8px; font-size: 20px; font-weight: 800; color: #fff; }
.js-layers p { font-size: 13.5px; line-height: 1.85; color: #838da1; }

/* ---------- 四象限 ---------- */
.js-quad {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.js-quad-cell {
  position: relative;
  padding: 34px 32px;
  background: #0c0c15;
  min-height: 190px;
}
.js-quad-cell::after {
  content: "";
  position: absolute;
  right: 20px; top: 20px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #2a2a3d;
}
.js-quad-cell.is-active { background: radial-gradient(360px 200px at 80% 20%, rgba(255, 45, 120, .14), transparent 70%), #0f0c15; }
.js-quad-cell.is-active::after { background: #ff2d78; box-shadow: 0 0 0 5px rgba(255, 45, 120, .16); }
.js-quad-cell em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: #ff7aa8;
}
.js-quad-cell h3 { margin: 12px 0 10px; font-size: 24px; font-weight: 800; color: #fff; letter-spacing: 2px; }
.js-quad-cell p { font-size: 13.5px; line-height: 1.85; color: #838da1; max-width: 340px; }

/* ---------- 赛道分段 ---------- */
.js-laps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 2px solid #1c1c2b;
  padding-top: 28px;
}
.js-lap { position: relative; padding: 0 26px 0 0; }
.js-lap::before {
  content: "";
  position: absolute;
  top: -35px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #0b0b14;
  border: 2px solid #ff2d78;
}
.js-lap:nth-child(2)::before { border-color: #ff7aa8; }
.js-lap:nth-child(3)::before { border-color: #22d3ee; }
.js-lap:nth-child(4)::before { border-color: #9bf3ff; }
.js-lap b {
  font-family: var(--mono);
  font-size: 13px;
  color: #ff2d78;
}
.js-lap h3 { margin: 7px 0 7px; font-size: 20px; font-weight: 800; color: #fff; }
.js-lap p { font-size: 13px; line-height: 1.8; color: #838da1; max-width: 220px; }
.js-lap > span {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 2px;
  color: #4d5668;
}

/* ---------- 快与稳 ---------- */
.js-vs {
  display: grid;
  grid-template-columns: 1fr 96px 1fr;
  gap: 20px;
  align-items: center;
}
.js-vs > div:not(.js-vs-mid) {
  padding: 30px 30px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0c0c15;
}
.js-vs > div:first-child { border-top: 2px solid #ff2d78; }
.js-vs > div:last-child { border-top: 2px solid #22d3ee; }
.js-vs em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 2px;
  color: #ff7aa8;
}
.js-vs > div:last-child em { color: #9bf3ff; }
.js-vs h3 { margin: 8px 0 14px; font-size: 23px; font-weight: 800; color: #fff; }
.js-vs ul { display: grid; gap: 10px; }
.js-vs li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  color: #a7b0c0;
}
.js-vs li::before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 6px; height: 6px;
  background: #2a2a3d;
  transform: rotate(45deg);
}
.js-vs-mid {
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 2px;
  color: #4d5668;
}

/* ---------- 表格 ---------- */
.js-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
.js-table { width: 100%; min-width: 620px; border-collapse: collapse; font-size: 13.5px; }
.js-table th,
.js-table td { padding: 16px 20px; text-align: left; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.js-table thead th {
  background: #10101c;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 1.4px;
  color: #838da1;
  font-weight: 600;
}
.js-table tbody th { color: #fff; font-weight: 700; }
.js-table td { color: #a7b0c0; }
.js-table td:nth-child(2) { font-family: var(--mono); color: #22d3ee; }
.js-table tbody tr:last-child th,
.js-table tbody tr:last-child td { border-bottom: 0; }
.js-table tbody tr:hover th,
.js-table tbody tr:hover td { background: rgba(255, 45, 120, .04); }

/* ---------- 情绪 ---------- */
.js-emo-grid {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 40px;
  align-items: start;
}
.js-emo { display: grid; gap: 12px; }
.js-emo > div {
  display: grid;
  grid-template-columns: 1fr 150px;
  align-items: center;
  gap: 6px 12px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0c0c15;
}
.js-emo i {
  grid-column: 1 / -1;
  display: block;
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(90deg, #ff2d78 calc(var(--v) * 1%), #1c1c2b 0);
  order: 3;
}
.js-emo b { font-size: 14px; color: #f0f3f9; }
.js-emo span { font-size: 11.5px; color: #6f7889; text-align: right; }
.js-emo-card {
  padding: 32px 30px;
  border: 1px solid rgba(255, 45, 120, .35);
  border-radius: 12px;
  background: radial-gradient(340px 200px at 80% 10%, rgba(255, 45, 120, .16), transparent 70%), #100b14;
}
.js-emo-card b {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: #ff7aa8;
}
.js-emo-card p { margin-top: 12px; font-size: 14px; line-height: 1.9; color: #b6bdcc; }

/* ---------- 复盘 ---------- */
.js-review { display: grid; gap: 0; border-top: 1px solid var(--line); }
.js-review-row {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.js-review-row b { font-family: var(--mono); font-size: 12px; color: #ff2d78; }
.js-review-row span { font-size: 15px; color: #c7cedb; }

/* ---------- 失效信号 ---------- */
.js-fails {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.js-fails > div {
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0c0c15;
}
.js-fails > div:nth-child(4),
.js-fails > div:nth-child(5) { background: linear-gradient(165deg, rgba(255, 45, 120, .08), #0c0c15 60%); }
.js-fails b { font-family: var(--mono); font-size: 11px; letter-spacing: 1.6px; color: #ff7aa8; }
.js-fails h3 { margin: 10px 0 8px; font-size: 16.5px; font-weight: 700; color: #fff; }
.js-fails p { font-size: 13px; line-height: 1.8; color: #838da1; }

/* ---------- 移动端 ---------- */
.js-mobile {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 46px;
  align-items: center;
}
.js-mobile-list { display: grid; gap: 10px; margin-top: 18px; }
.js-mobile-list li {
  position: relative;
  padding: 11px 0 11px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, .07);
  font-size: 13.5px;
  line-height: 1.75;
  color: #a7b0c0;
}
.js-mobile-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 20px;
  width: 8px; height: 8px;
  border: 1px solid #22d3ee;
  transform: rotate(45deg);
}
.js-pace-card {
  padding: 34px 32px;
  border: 1px solid rgba(34, 211, 238, .3);
  border-radius: 14px;
  background: radial-gradient(320px 220px at 80% 15%, rgba(34, 211, 238, .14), transparent 70%), #0b0f16;
}
.js-pace-card span { font-family: var(--mono); font-size: 10.5px; letter-spacing: 2.4px; color: #9bf3ff; }
.js-pace-card b {
  display: block;
  margin: 8px 0 12px;
  font-family: var(--mono);
  font-size: 64px;
  line-height: 1;
  color: #fff;
}
.js-pace-card p { font-size: 13.5px; line-height: 1.9; color: #a7b0c0; }

/* ---------- 相关 / 联系 / 地图 ---------- */
.js-related { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.js-related a {
  padding: 24px 24px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0c0c15;
  transition: border-color .2s, transform .2s;
}
.js-related a:hover { border-color: #ff2d78; transform: translateY(-3px); }
.js-related em { font-style: normal; font-family: var(--mono); font-size: 10px; letter-spacing: 1.8px; color: #ff7aa8; }
.js-related b { display: block; margin: 9px 0 5px; font-size: 15px; color: #fff; }
.js-related span { font-size: 12.5px; color: #838da1; }

.js-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 34px 36px;
  border: 1px solid rgba(255, 45, 120, .3);
  border-radius: 12px;
  background: radial-gradient(520px 240px at 88% 20%, rgba(255, 45, 120, .12), transparent 70%), #0d0a13;
}
.js-contact h2 { font-size: 24px; font-weight: 800; color: #fff; }
.js-contact p { margin-top: 7px; font-size: 13.5px; color: #838da1; }
.js-contact .tg-link { border-color: rgba(255, 255, 255, .24); color: #fff; }
.js-contact .tg-link:hover { border-color: #229ed9; background: rgba(34, 158, 217, .12); }

.js-map { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.js-map a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 13.5px;
  color: #a7b0c0;
  transition: border-color .2s, color .2s;
}
.js-map a:hover { border-color: #22d3ee; color: #9bf3ff; }
.js-map em { font-style: normal; font-family: var(--mono); font-size: 10.5px; color: #4d5668; }

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .js-hero-grid { grid-template-columns: 1fr; gap: 38px; }
  .js-figure { max-width: 700px; }
  .js-gauges { grid-template-columns: repeat(2, 1fr); }
  .js-layers { grid-template-columns: 1fr; }
  .js-laps { grid-template-columns: repeat(2, 1fr); row-gap: 34px; }
  .js-lap:nth-child(3)::before,
  .js-lap:nth-child(4)::before { top: -35px; }
  .js-vs { grid-template-columns: 1fr; }
  .js-vs-mid { display: none; }
  .js-emo-grid { grid-template-columns: 1fr; gap: 28px; }
  .js-mobile { grid-template-columns: 1fr; gap: 32px; }
  .js-fails { grid-template-columns: 1fr 1fr; }
  .js-related { grid-template-columns: 1fr; }
  .js-map { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .js-hero { padding: 46px 0 48px; }
  .js-hero h1 { font-size: 36px; }
  .js-actions .btn { width: 100%; }
  .js-sec { padding: 52px 0; }
  .js-gauges { grid-template-columns: 1fr 1fr; gap: 10px; }
  .js-gauge { padding: 22px 12px; }
  .js-gauge-ring { width: 96px; height: 96px; }
  .js-gauge-ring b { font-size: 24px; }
  .js-quad { grid-template-columns: 1fr; }
  .js-quad-cell { min-height: 0; padding: 26px 22px; }
  .js-laps { grid-template-columns: 1fr; row-gap: 26px; }
  .js-lap p { max-width: none; }
  .js-fails { grid-template-columns: 1fr; }
  .js-review-row { grid-template-columns: 40px 1fr; }
  .js-contact { padding: 26px 22px; }
  .js-contact h2 { font-size: 21px; }
  .js-map { grid-template-columns: 1fr; }
}