/* ==========================================================================
   威客电竞 · 共享站套件 /assets/site.css
   暗黑高原电竞指挥中心：深空黑 × 暗紫底，电光青 / 熔岩橙 / 霓虹粉高亮
   ========================================================================== */

/* ---------- 01. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h, 76px) + 28px);
}

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

ol, ul { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img, svg, video, canvas { display: block; max-width: 100%; }
table { border-collapse: collapse; width: 100%; }

/* ---------- 02. 设计令牌 ---------- */
:root {
  --void: #07070C;
  --violet: #1A0E2E;
  --paper: #F3E9D7;
  --cyan: #26F7E3;
  --orange: #FF6B2C;
  --pink: #FF3D9A;
  --ash: #8A8798;
  --teal: #0C4F55;
  --warn: #FFD166;

  --line: rgba(243, 233, 215, 0.14);
  --line-soft: rgba(243, 233, 215, 0.08);
  --line-strong: rgba(243, 233, 215, 0.34);
  --line-cyan: rgba(38, 247, 227, 0.36);

  --font-display: "Barlow Condensed", "Noto Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-data: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", monospace;

  --shell: min(1380px, calc(100% - clamp(1.5rem, 6vw, 7rem)));
  --header-h: 76px;

  --ease: cubic-bezier(.2, .7, .25, 1);
  --r-sm: 2px;
  --r-md: 6px;

  --shadow-card: 0 24px 52px -34px rgba(0, 0, 0, 0.92);
  --shadow-cyan: 0 24px 54px -32px rgba(38, 247, 227, 0.42);
}

/* ---------- 03. 中文排版与页面基底 ---------- */
body {
  min-height: 100vh;
  padding-top: var(--header-h);
  background:
    radial-gradient(1240px 620px at 84% -10%, rgba(26, 14, 46, 0.95), transparent 62%),
    radial-gradient(920px 540px at 4% 14%, rgba(12, 79, 85, 0.30), transparent 60%),
    radial-gradient(700px 460px at 96% 74%, rgba(255, 61, 154, 0.08), transparent 68%),
    var(--void);
  background-attachment: fixed;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: clamp(15px, 0.42vw + 13.5px, 17px);
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

html[data-nav-locked="true"] { overflow: hidden; }

::selection {
  background: var(--cyan);
  color: var(--void);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.005em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.2rem, 5.4vw, 4.4rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 1.9vw, 1.55rem); font-style: normal; }
h4 { font-size: clamp(1rem, 1.4vw, 1.16rem); font-style: normal; font-weight: 700; }

p { max-width: 72ch; }
strong, b { font-weight: 700; color: var(--paper); }

:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--pink);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

/* ---------- 04. 通用版式 ---------- */
.container {
  width: var(--shell);
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: clamp(3.2rem, 7vw, 6.5rem);
}

.section--tight {
  padding-block: clamp(2rem, 4vw, 3.4rem);
}

.stack > * + * { margin-top: clamp(0.8rem, 1.6vw, 1.3rem); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-data);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  flex: none;
}

.display {
  font-size: clamp(2.4rem, 6.4vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.015em;
}

.lede {
  font-size: clamp(1rem, 0.5vw + 0.9rem, 1.15rem);
  line-height: 1.85;
  color: rgba(243, 233, 215, 0.78);
  max-width: 60ch;
}

.hairline {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, var(--line-strong), var(--line-soft) 55%, transparent);
}

/* ---------- 05. 跳过链接 ---------- */
.skip-link {
  position: fixed;
  left: 1rem;
  top: 0.6rem;
  z-index: 300;
  padding: 0.72rem 1.15rem;
  background: var(--paper);
  color: var(--void);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  transform: translateY(-180%);
  transition: transform 0.26s var(--ease);
  clip-path: polygon(9px 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%, 0 9px);
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--pink);
  outline-offset: 3px;
}

/* ---------- 06. 头部 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 120;
  background: linear-gradient(180deg, rgba(7, 7, 12, 0.94), rgba(7, 7, 12, 0.72));
  border-bottom: 1px solid var(--line);
  transition:
    background 0.32s var(--ease),
    border-color 0.32s var(--ease),
    box-shadow 0.32s var(--ease);
}

.site-header[data-scrolled="true"] {
  background: rgba(7, 7, 12, 0.88);
  border-bottom-color: var(--line-cyan);
  box-shadow: 0 16px 44px -26px rgba(0, 0, 0, 0.95);
}

.header-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: transparent;
  pointer-events: none;
}
.header-progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--warn) 55%, var(--orange));
  transition: width 0.12s linear;
}

.header-shell {
  width: var(--shell);
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(1rem, 2.4vw, 2.4rem);
}

.header-left {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2.2vw, 2.2rem);
  min-width: 0;
}

.header-right {
  display: flex;
  align-items: center;
  gap: clamp(0.6rem, 1.4vw, 1.5rem);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.68rem;
  flex: none;
}

.brand-glyph {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 1.3rem;
  line-height: 1;
  color: var(--void);
  background: linear-gradient(148deg, var(--cyan) 0%, #17c7ba 58%, var(--teal) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
  transition: filter 0.24s var(--ease);
}
.brand:hover .brand-glyph { filter: brightness(1.14) saturate(1.1); }

.brand-words { display: flex; flex-direction: column; line-height: 1; }
.brand-name {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 1.18rem;
  letter-spacing: 0.04em;
  color: var(--paper);
}
.brand-sub {
  margin-top: 0.3rem;
  font-family: var(--font-data);
  font-size: 0.58rem;
  letter-spacing: 0.3em;
  color: var(--ash);
}

/* 赛季状态灯 */
.season-state {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.62rem;
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--ash);
  white-space: nowrap;
  border: 1px solid var(--line-soft);
  background: rgba(38, 247, 227, 0.045);
}

.season-dot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(38, 247, 227, 0.55);
  animation: season-pulse 2.8s var(--ease) infinite;
}

@keyframes season-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(38, 247, 227, 0.5); }
  68%  { box-shadow: 0 0 0 7px rgba(38, 247, 227, 0); }
  100% { box-shadow: 0 0 0 0 rgba(38, 247, 227, 0); }
}

/* 导航 */
.site-nav { flex: none; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.08rem;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.56rem 0.66rem;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  color: rgba(243, 233, 215, 0.82);
  transition: color 0.22s var(--ease);
}

.nav-link::before {
  content: "";
  position: absolute;
  left: 0.34rem;
  right: 0.34rem;
  bottom: 0.12rem;
  height: 3px;
  background: var(--paper);
  clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.28s var(--ease);
}

.nav-link:hover,
.nav-link:focus-visible { color: var(--paper); }
.nav-link:hover::before,
.nav-link:focus-visible::before { transform: scaleX(1); }

.nav-idx {
  font-family: var(--font-data);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--ash);
  transform: translateY(-0.1em);
  transition: color 0.22s var(--ease);
}
.nav-link:hover .nav-idx { color: var(--cyan); }

.nav-link[aria-current="page"] { color: var(--cyan); }
.nav-link[aria-current="page"] .nav-idx { color: var(--cyan); }
.nav-link[aria-current="page"]::before {
  transform: scaleX(1);
  background: var(--cyan);
}

.nav-foot { display: none; }

/* 主 CTA */
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.62rem 1.2rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--void);
  background: linear-gradient(120deg, var(--orange) 0%, #ff8a3d 100%);
  clip-path: polygon(11px 0, 100% 0, 100% calc(100% - 11px), calc(100% - 11px) 100%, 0 100%, 0 11px);
  transition: filter 0.22s var(--ease), transform 0.22s var(--ease);
}
.header-cta:hover { filter: brightness(1.09); transform: translateY(-1px); }
.header-cta:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--void), 0 0 0 4px var(--pink);
}

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  padding: 0.54rem 0.82rem;
  border: 1px solid var(--line-strong);
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--paper);
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}
.nav-toggle:hover { border-color: var(--cyan); color: var(--cyan); }

.nav-toggle-box {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 20px;
  height: 14px;
  flex: none;
}
.nav-toggle-box span {
  display: block;
  height: 2px;
  width: 100%;
  background: currentColor;
  transition: transform 0.28s var(--ease), opacity 0.18s linear;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-box span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-box span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-box span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 07. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(4rem, 9vw, 8rem);
  color: var(--paper);
  background:
    radial-gradient(880px 320px at 78% 0%, rgba(26, 14, 46, 0.85), transparent 70%),
    linear-gradient(180deg, rgba(26, 14, 46, 0.55) 0%, #0A0613 42%, #06050A 100%);
  border-top: 1px solid var(--line-soft);
}

.footer-ridge {
  display: flex;
  height: 4px;
}
.footer-ridge span { flex: 1; height: 100%; }
.footer-ridge span:nth-child(1) { background: var(--cyan); }
.footer-ridge span:nth-child(2) { background: var(--teal); }
.footer-ridge span:nth-child(3) { background: var(--warn); }
.footer-ridge span:nth-child(4) { background: var(--orange); }
.footer-ridge span:nth-child(5) { background: var(--pink); }

.footer-shell {
  width: var(--shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) repeat(2, minmax(0, 1fr)) minmax(0, 1.5fr);
  gap: clamp(1.8rem, 4vw, 3.6rem);
  padding-block: clamp(2.6rem, 5.5vw, 4.6rem) clamp(1.8rem, 3.5vw, 3rem);
}

.footer-word {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: clamp(2.1rem, 4.6vw, 3.2rem);
  line-height: 0.95;
  letter-spacing: -0.015em;
  background: linear-gradient(100deg, var(--paper) 18%, var(--cyan) 118%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  max-width: none;
}

.footer-tag {
  margin-top: 0.75rem;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  color: rgba(243, 233, 215, 0.62);
  max-width: 26ch;
}

.footer-icp {
  margin-top: 1.15rem;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--ash);
}

.footer-head {
  font-family: var(--font-data);
  font-style: normal;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1.05rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line-soft);
}

.footer-list li + li { margin-top: 0.1rem; }

.footer-list a {
  position: relative;
  display: inline-block;
  padding-block: 0.26rem;
  font-size: 0.92rem;
  color: rgba(243, 233, 215, 0.76);
  transition: color 0.2s var(--ease);
}
.footer-list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.12rem;
  width: 100%;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.3s var(--ease);
}
.footer-list a:hover,
.footer-list a:focus-visible { color: var(--paper); }
.footer-list a:hover::after,
.footer-list a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left center;
}

.footer-list--plain li {
  display: grid;
  grid-template-columns: 3.1em minmax(0, 1fr);
  gap: 0.55rem;
  align-items: start;
  padding-block: 0.3rem;
  font-size: 0.88rem;
}
.footer-k {
  font-family: var(--font-data);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  color: var(--ash);
  padding-top: 0.28em;
}
.footer-v {
  color: rgba(243, 233, 215, 0.84);
  overflow-wrap: anywhere;
}

.footer-note {
  margin-top: 1.15rem;
  padding: 0.8rem 0.92rem;
  font-size: 0.78rem;
  line-height: 1.62;
  color: rgba(7, 7, 12, 0.84);
  background: linear-gradient(158deg, var(--paper) 0%, #e6d8bf 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  max-width: 34ch;
}

.footer-base {
  width: var(--shell);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem 1.4rem;
  padding-block: 1.3rem 1.7rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--ash);
}
.footer-copy { max-width: none; }
.footer-legal { color: rgba(138, 135, 152, 0.85); max-width: none; }

/* ---------- 08. 通用组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.78rem 1.5rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.05em;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--line-strong);
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  transition: background 0.24s var(--ease), color 0.24s var(--ease),
              border-color 0.24s var(--ease), filter 0.24s var(--ease);
}
.btn:hover { border-color: var(--paper); background: rgba(243, 233, 215, 0.08); }
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--void), 0 0 0 4px var(--pink);
}

.btn--primary {
  color: var(--void);
  background: linear-gradient(120deg, var(--orange) 0%, #ff8a3d 100%);
  border-color: transparent;
}
.btn--primary:hover { filter: brightness(1.09); background: linear-gradient(120deg, var(--orange) 0%, #ff8a3d 100%); }

.btn--cyan {
  color: var(--void);
  background: linear-gradient(120deg, var(--cyan) 0%, #17c7ba 100%);
  border-color: transparent;
}
.btn--cyan:hover { filter: brightness(1.08); background: linear-gradient(120deg, var(--cyan) 0%, #17c7ba 100%); }

.btn--ghost {
  border-color: var(--line);
  color: rgba(243, 233, 215, 0.86);
}
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); background: transparent; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  color: var(--ash);
}
.breadcrumb li { display: flex; align-items: center; gap: 0.5rem; }
.breadcrumb li + li::before { content: "/"; color: var(--teal); }
.breadcrumb a { transition: color 0.2s var(--ease); }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb [aria-current="page"] { color: rgba(243, 233, 215, 0.8); }

.grid {
  display: grid;
  gap: clamp(1rem, 2.2vw, 1.8rem);
}
.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)); }

.card {
  position: relative;
  padding: clamp(1.2rem, 2.4vw, 1.9rem);
  background: linear-gradient(160deg, rgba(26, 14, 46, 0.88), rgba(7, 7, 12, 0.92));
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}
.card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(38, 247, 227, 0) 62%);
  opacity: 0;
  transition: opacity 0.28s var(--ease);
}
.card:hover,
.card:focus-within {
  transform: translateY(-4px);
  border-color: var(--line-cyan);
  box-shadow: var(--shadow-cyan);
}
.card:hover::after,
.card:focus-within::after { opacity: 1; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.58rem;
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--ash);
  border: 1px solid var(--line);
  white-space: nowrap;
}
.tag--cyan { color: var(--cyan); border-color: var(--line-cyan); }
.tag--orange { color: var(--warn); border-color: rgba(255, 209, 102, 0.4); }

.metric {
  font-family: var(--font-data);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--cyan);
}

/* 图片容器基础规则 */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  background:
    radial-gradient(320px 200px at 76% 12%, rgba(38, 247, 227, 0.16), transparent 70%),
    linear-gradient(152deg, var(--violet) 0%, #0B0714 68%, var(--void) 100%);
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(243, 233, 215, 0.09) 0 1px, transparent 1px 100%) 0 0 / 25% 100%,
    linear-gradient(180deg, transparent 62%, rgba(7, 7, 12, 0.72) 100%);
  opacity: 0.55;
}
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.06) contrast(1.04);
}
.media-frame--portrait { aspect-ratio: 3 / 4; }
.media-frame--wide { aspect-ratio: 21 / 9; }

/* ---------- 09. 动效与显现 ---------- */
.js-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.62s var(--ease), transform 0.62s var(--ease);
}
.js-reveal [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

[data-toc-link][aria-current="true"] {
  color: var(--cyan);
  border-color: var(--line-cyan);
}

/* ---------- 10. 响应式 · 移动导航面板 ---------- */
@media (max-width: 1000px) {
  :root { --header-h: 68px; }

  .season-state { display: none; }

  .site-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 140;
    padding: 1.1rem clamp(1.1rem, 4vw, 2rem) calc(1.2rem + env(safe-area-inset-bottom, 0px));
    background: linear-gradient(180deg, rgba(26, 14, 46, 0.985) 0%, rgba(7, 7, 12, 0.995) 100%);
    border-top: 1px solid var(--line-cyan);
    box-shadow: 0 -32px 64px -34px rgba(0, 0, 0, 0.98);
    max-height: 82vh;
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateY(106%);
    visibility: hidden;
    transition: transform 0.42s var(--ease), visibility 0.42s var(--ease);
  }
  .site-nav[data-open="true"] {
    transform: translateY(0);
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-list li + li { border-top: 1px solid var(--line-soft); }

  .nav-link {
    width: 100%;
    padding: 0.92rem 0.85rem;
    font-size: 1rem;
    justify-content: flex-start;
  }
  .nav-link::before {
    left: 0;
    right: auto;
    bottom: 50%;
    width: 3px;
    height: 22px;
    transform: translateY(50%) scaleY(0);
    transform-origin: center top;
    clip-path: none;
  }
  .nav-link:hover::before,
  .nav-link:focus-visible::before,
  .nav-link[aria-current="page"]::before {
    transform: translateY(50%) scaleY(1);
  }
  .nav-link[aria-current="page"] { background: rgba(38, 247, 227, 0.07); }
  .nav-idx { font-size: 0.68rem; }

  .nav-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.9rem;
    margin-top: 1.1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--line);
  }
  .season-state--foot { display: inline-flex; }
  .nav-foot .header-cta { display: inline-flex; }

  .header-cta { display: none; }
  .nav-toggle { display: inline-flex; }
}

@media (min-width: 1001px) {
  .nav-foot { display: none; }
}

@media (max-width: 1000px) {
  .footer-shell { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .header-shell { gap: 0.6rem; }
  .brand-sub { display: none; }
  .brand-glyph { width: 34px; height: 34px; font-size: 1.15rem; }
  .brand-name { font-size: 1.04rem; }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }

  .footer-shell { grid-template-columns: minmax(0, 1fr); gap: 1.9rem; }
  .footer-base { flex-direction: column; align-items: flex-start; }
}

/* ---------- 11. 降低动效 ---------- */
@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;
  }

  .season-dot { animation: none; }

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

  .card:hover,
  .card:focus-within,
  .header-cta:hover,
  .btn:hover { transform: none; }

  .header-progress-bar { transition: none; }
}