/* ==========================================================================
   天博 · 城市赛道数据面板 / 共享站点样式 /assets/site.css
   四级底色：深海底色 → 夜航分区 → 面板蓝 → 悬停蓝
   ========================================================================== */

/* ---------- 0. 变量 ---------- */
:root {
  --abyss: #06121F;
  --night: #0A1B2E;
  --panel: #0F2A42;
  --hover: #143A56;
  --cyan: #35F2D0;
  --track: #FF5A36;
  --signal: #FFC442;
  --pos: #2FE08A;
  --mist: #A9C9D8;
  --white: #EAF6FF;

  --line: rgba(53, 242, 208, 0.22);
  --line-soft: rgba(169, 201, 216, 0.14);
  --line-faint: rgba(169, 201, 216, 0.07);

  --font-display: "Noto Sans SC Heavy Condensed", "Source Han Sans SC Heavy", "PingFang SC", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Consolas, "Courier New", monospace;

  --radius: 2px;
  --shadow-panel: 0 1px 0 rgba(234, 246, 255, 0.05) inset, 0 18px 40px -28px rgba(0, 0, 0, 0.95);
  --shadow-lift: 0 1px 0 rgba(234, 246, 255, 0.08) inset, 0 24px 48px -26px rgba(0, 0, 0, 1);

  --gutter: clamp(16px, 3vw, 40px);
  --section-gap: clamp(48px, 7vw, 96px);
  --max-w: 1440px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  background: var(--abyss);
}

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

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

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

button, input, select, textarea { font: inherit; color: inherit; }

a { color: var(--cyan); text-decoration-thickness: 1px; text-underline-offset: 3px; }

::selection { background: rgba(53, 242, 208, 0.28); color: #FFFFFF; }

/* ---------- 2. 基础排版与画布 ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--white);
  background-color: var(--abyss);
  background-image:
    linear-gradient(to right, rgba(53, 242, 208, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(53, 242, 208, 0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: 0.01em;
  color: var(--white);
  text-wrap: balance;
}

h1 { font-size: clamp(30px, 5vw, 56px); }
h2 { font-size: clamp(23px, 3.4vw, 40px); }
h3 { font-size: clamp(18px, 2vw, 24px); }
h4 { font-size: 17px; letter-spacing: 0.04em; }

p { max-width: 68ch; }
p + p { margin-top: 0.9em; }

strong { font-weight: 700; color: var(--white); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 1px;
}

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

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

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

/* ---------- 3. 容器与栅格 ---------- */
.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--section-gap);
  position: relative;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: clamp(24px, 3.5vw, 48px);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.4vw, 40px);
  line-height: 1.16;
  color: var(--white);
}

.section-lede {
  color: var(--mist);
  font-size: 16px;
  line-height: 1.8;
  max-width: 62ch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--cyan);
  flex: none;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.2vw, 28px);
}

@media (min-width: 720px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1040px) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ---------- 4. 跳转链接 ---------- */
.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -120px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--cyan);
  color: var(--abyss);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-radius: var(--radius);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 8px;
  outline-offset: 2px;
}

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

/* ---------- 5. 站点头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(6, 18, 31, 0.94);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
  box-shadow: 0 26px 44px -38px rgba(0, 0, 0, 1);
}

.header-frame {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(12px, 2.4vw, 36px);
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 11px var(--gutter);
  min-height: 66px;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  text-decoration: none;
  color: var(--white);
}

.brand-mark {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 28px;
  flex: none;
}

.brand-mark span {
  display: block;
  width: 4px;
  border-radius: 1px;
  background: var(--cyan);
}

.brand-mark span:nth-child(1) { height: 13px; opacity: 0.42; }
.brand-mark span:nth-child(2) { height: 20px; opacity: 0.72; }
.brand-mark span:nth-child(3) { height: 28px; background: var(--track); }

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.12;
  min-width: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 0.16em;
  color: var(--white);
  transition: color 0.18s ease;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--mist);
  white-space: nowrap;
}

.brand:hover .brand-name,
.brand:focus-visible .brand-name { color: var(--cyan); }

/* 主导航 */
.primary-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(10px, 1.8vw, 26px);
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0px, 0.6vw, 8px);
}

.nav-list a {
  position: relative;
  display: block;
  padding: 9px 10px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s ease;
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 3px;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.2s ease;
}

.nav-list a:hover,
.nav-list a:focus-visible { color: var(--white); }

.nav-list a:hover::after,
.nav-list a:focus-visible::after { transform: scaleX(1); }

.nav-list a[aria-current="page"] { color: var(--cyan); }

.nav-list a[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--cyan);
  height: 2px;
}

/* 移动端按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--cyan);
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.nav-toggle:hover { background: rgba(53, 242, 208, 0.08); border-color: var(--cyan); }

.nav-toggle-bar {
  position: relative;
  display: block;
  width: 16px;
  height: 1px;
  background: currentColor;
}

.nav-toggle-bar::before,
.nav-toggle-bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 1px;
  background: currentColor;
  transition: transform 0.2s ease, top 0.2s ease;
}

.nav-toggle-bar::before { top: -5px; }
.nav-toggle-bar::after { top: 5px; }

.site-header[data-open="true"] .nav-toggle-bar { background: transparent; }
.site-header[data-open="true"] .nav-toggle-bar::before { top: 0; transform: rotate(45deg); }
.site-header[data-open="true"] .nav-toggle-bar::after { top: 0; transform: rotate(-45deg); }

.nav-toggle-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
}

/* 状态带 */
.status-strip {
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 0 var(--gutter) 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(169, 201, 216, 0.82);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--signal);
  vertical-align: middle;
  box-shadow: 0 0 0 0 rgba(255, 196, 66, 0.55);
  animation: tb-status-pulse 2.6s ease-out infinite;
}

@keyframes tb-status-pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 196, 66, 0.5); }
  70% { box-shadow: 0 0 0 7px rgba(255, 196, 66, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 196, 66, 0); }
}

/* 滚动进度计时线 */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--signal) 62%, var(--track) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.12s linear;
  pointer-events: none;
  z-index: 2;
}

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.btn--accent {
  background: var(--track);
  color: #06121F;
}

.btn--accent:hover,
.btn--accent:focus-visible {
  background: #FF7C5C;
  color: #050D16;
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--cyan);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: rgba(53, 242, 208, 0.09);
  border-color: var(--cyan);
  transform: translateY(-1px);
}

.nav-cta {
  flex: none;
  white-space: nowrap;
  padding: 9px 16px;
  font-size: 13px;
}

/* ---------- 7. 面板与标签 ---------- */
.panel {
  position: relative;
  padding: clamp(18px, 2.2vw, 28px);
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
}

.panel--interactive {
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

@media (hover: hover) {
  .panel--interactive:hover {
    background: var(--hover);
    border-color: var(--line);
    box-shadow: var(--shadow-lift);
    transform: translateY(-2px);
  }
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
  background: rgba(10, 27, 46, 0.7);
}

.tag::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}

.tag--live { color: var(--track); border-color: rgba(255, 90, 54, 0.4); }
.tag--done { color: var(--pos); border-color: rgba(47, 224, 138, 0.35); }
.tag--notice { color: var(--signal); border-color: rgba(255, 196, 66, 0.35); }

/* ---------- 8. 面包屑 ---------- */
.breadcrumbs {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 6px;
  color: rgba(169, 201, 216, 0.38);
}

.breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  transition: color 0.16s ease;
}

.breadcrumbs a:hover,
.breadcrumbs a:focus-visible { color: var(--cyan); }

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

/* ---------- 9. 图像容器基础 ---------- */
.img-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background-color: var(--night);
  background-image:
    linear-gradient(135deg, rgba(15, 42, 66, 0.92), rgba(6, 18, 31, 0.96)),
    repeating-linear-gradient(90deg, rgba(53, 242, 208, 0.07) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(0deg, rgba(53, 242, 208, 0.05) 0 1px, transparent 1px 32px);
  aspect-ratio: 16 / 9;
}

.img-frame > img,
.img-frame > picture,
.img-frame > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-frame--wide { aspect-ratio: 21 / 9; }
.img-frame--tall { aspect-ratio: 4 / 5; }
.img-frame--square { aspect-ratio: 1 / 1; }

.img-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 22px 14px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
  background: linear-gradient(to top, rgba(6, 18, 31, 0.94), rgba(6, 18, 31, 0));
}

/* ---------- 10. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 120px);
  background: var(--night);
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(53, 242, 208, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(53, 242, 208, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 78%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 78%);
}

.footer-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(240px, 1.5fr) repeat(2, minmax(110px, 0.7fr)) minmax(220px, 1.2fr);
  gap: clamp(24px, 3vw, 48px);
  max-width: var(--max-w);
  margin-inline: auto;
  padding: clamp(40px, 5.5vw, 72px) var(--gutter) clamp(32px, 4vw, 52px);
}

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

.footer-brand-line {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 2.1vw, 26px);
  line-height: 1.3;
  letter-spacing: 0.03em;
  color: var(--white);
  max-width: 22ch;
}

.footer-desc {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 34ch;
}

.footer-signature {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(53, 242, 208, 0.8);
}

.footer-signal {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--pos);
  box-shadow: 0 0 8px rgba(47, 224, 138, 0.75);
  flex: none;
}

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

.footer-col-title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.footer-links li + li { margin-top: 9px; }

.footer-links a {
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.16s ease, padding-left 0.16s ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--cyan);
  padding-left: 3px;
}

.footer-meta {
  display: grid;
  gap: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  word-break: break-word;
}

.meta-key {
  display: inline-block;
  min-width: 34px;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: rgba(169, 201, 216, 0.55);
}

.footer-note {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.75;
  color: rgba(169, 201, 216, 0.66);
  max-width: 32ch;
}

.footer-base {
  position: relative;
  border-top: 1px solid var(--line-soft);
}

.footer-base-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 16px var(--gutter);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: rgba(169, 201, 216, 0.66);
}

.footer-legal,
.footer-copy { max-width: none; }

.to-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.to-top:hover,
.to-top:focus-visible {
  background: rgba(53, 242, 208, 0.1);
  border-color: var(--cyan);
}

.to-top-arrow {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-bottom: 6px solid currentColor;
}

/* ---------- 11. 显现动效 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
}

html.js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
  transition: opacity 0.55s ease, transform 0.55s ease;
}

/* ---------- 12. 响应式 ---------- */
@media (max-width: 1180px) {
  .nav-list a { padding-inline: 7px; font-size: 13.5px; letter-spacing: 0.04em; }
  .nav-list a::after { left: 7px; right: 7px; }
}

@media (max-width: 1023px) {
  .header-frame {
    grid-template-columns: auto 1fr auto;
    min-height: 60px;
  }

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

  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 8px var(--gutter) 22px;
    background: var(--night);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 28px 46px -30px rgba(0, 0, 0, 1);
    max-height: calc(100vh - 100px);
    max-height: calc(100dvh - 100px);
    overflow-y: auto;
  }

  .site-header[data-open="true"] .primary-nav { display: flex; }

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

  .nav-list a {
    padding: 14px 4px 14px 14px;
    font-size: 16px;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--line-soft);
    color: var(--mist);
  }

  .nav-list a::after { display: none; }

  .nav-list a[aria-current="page"] {
    color: var(--cyan);
    background: rgba(53, 242, 208, 0.06);
  }

  .nav-list a[aria-current="page"]::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 2px;
    height: 20px;
    transform: translateY(-50%);
    background: var(--cyan);
  }

  .nav-cta {
    margin-top: 18px;
    width: 100%;
    padding: 13px 16px;
    font-size: 15px;
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 767px) {
  body {
    background-size: 40px 40px;
    background-attachment: scroll;
  }

  .brand-name { font-size: 18px; letter-spacing: 0.14em; }
  .brand-sub { font-size: 9px; letter-spacing: 0.12em; }

  .status-strip { font-size: 10px; letter-spacing: 0.05em; }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .footer-base-inner {
    justify-content: flex-start;
    font-size: 11px;
  }

  .to-top { order: -1; }
}

@media (max-width: 420px) {
  .brand-sub { display: none; }
}

/* ---------- 13. 动效偏好 ---------- */
@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;
    scroll-behavior: auto !important;
  }

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

  .scroll-progress { transition: none; }
}