/* ==========================================================================
   华体会登录 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   ========================================================================== */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

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

ul, ol { list-style: none; }

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

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

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

button { background: none; border: 0; }

[hidden] { display: none !important; }

/* --- 设计令牌 ------------------------------------------------------------- */
:root {
  /* 珠宝色分区 */
  --c-ink: #061A2B;
  --c-ink-2: #0B2C3D;
  --c-slate: #123044;
  --c-cyan: #00E5FF;
  --c-amber: #FFB300;
  --c-indigo: #3B2E6E;
  --c-paper: #E8F4F8;
  --c-mist: #9FB6C4;
  --c-mint: #7AE7C7;
  --c-copper: #8A6A3C;

  --line: rgba(138, 106, 60, 0.36);
  --line-soft: rgba(159, 182, 196, 0.16);
  --line-cyan: rgba(0, 229, 255, 0.42);

  /* 字体 */
  --f-head: "PingFang SC", "Noto Sans SC", "Source Han Sans SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --f-body: "PingFang SC", "Noto Sans SC", "Source Han Sans SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --f-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", "Courier New", monospace;
  --f-serif: Georgia, "Songti SC", "Noto Serif SC", "Source Han Serif SC", serif;

  /* 字号阶梯 96 / 64 / 40 / 28 / 20 / 17 / 15 / 13 */
  --fs-96: clamp(3.25rem, 7.2vw, 6rem);
  --fs-64: clamp(2.25rem, 4.8vw, 4rem);
  --fs-40: clamp(1.75rem, 3.1vw, 2.5rem);
  --fs-28: 1.75rem;
  --fs-20: 1.25rem;
  --fs-17: 1.0625rem;
  --fs-15: 0.9375rem;
  --fs-13: 0.8125rem;

  /* 尺度 */
  --gut: clamp(1rem, 3.6vw, 2.75rem);
  --maxw: 1280px;
  --hdr-h: 74px;
  --hdr-h-condensed: 56px;
  --axis-h: 50px;
  --shell-offset: 124px;
  --radius: 2px;
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  --dur: 0.2s;
}

/* --- 基础排版 ------------------------------------------------------------- */
body {
  background-color: var(--c-ink);
  background-image:
    linear-gradient(to right, rgba(138, 106, 60, 0.085) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(138, 106, 60, 0.085) 1px, transparent 1px);
  background-size: 96px 96px;
  color: var(--c-paper);
  font-family: var(--f-body);
  font-size: var(--fs-17);
  line-height: 1.75;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--f-head);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 { font-size: var(--fs-64); }
h2 { font-size: var(--fs-40); }
h3 { font-size: var(--fs-28); }
h4 { font-size: var(--fs-20); }

p { text-wrap: pretty; }

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

:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

#main-content { display: block; padding-top: var(--shell-offset); }

/* --- 工具类 --------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }

.eyebrow {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  line-height: 1.5;
  color: var(--c-mist);
  text-transform: uppercase;
}

.serif-note {
  font-family: var(--f-serif);
  font-size: var(--fs-13);
  line-height: 1.75;
  color: var(--c-mist);
}

.bleed-top {
  margin-top: calc(-1 * var(--shell-offset));
  padding-top: calc(var(--shell-offset) + 3.5rem);
}

/* --- 跳过链接 ------------------------------------------------------------- */
.skip-link {
  position: fixed;
  left: 1rem;
  top: -120px;
  z-index: 200;
  padding: 0.6rem 1.1rem;
  background: var(--c-cyan);
  color: var(--c-ink);
  font-size: var(--fs-13);
  letter-spacing: 0.08em;
  border-radius: var(--radius);
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: 1rem; }

/* --- 头部 ----------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  background: transparent;
  border-bottom: 1px solid transparent;
  color: var(--c-paper);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-cyan), transparent);
  transform: scaleX(0);
  transform-origin: left;
  animation: scan-x 0.9s var(--ease) 0.1s 1 forwards;
}

.site-header.is-condensed {
  background: rgba(6, 26, 43, 0.95);
  border-bottom-color: var(--line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

@keyframes scan-x { to { transform: scaleX(1); } }
@keyframes panel-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

.roll-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  background: var(--c-cyan);
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0.85;
  pointer-events: none;
}

.hdr-inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
}

.hdr-top {
  display: flex;
  align-items: center;
  height: var(--hdr-h);
  transition: height var(--dur) var(--ease);
}
.site-header.is-condensed .hdr-top { height: var(--hdr-h-condensed); }

/* 品牌 */
.hdr-brand {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding-bottom: 5px;
  flex: 0 0 auto;
  color: var(--c-paper);
}

.brand-mark {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: 1.375rem;
  letter-spacing: -0.02em;
}

.brand-ver {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--c-cyan);
}

.hdr-brand::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 100%;
  background: var(--c-cyan);
  transform: scaleX(0);
  transform-origin: left;
  animation: scan-x 0.8s var(--ease) 0.2s 1 forwards;
}

/* 导航 */
.hdr-nav { margin-left: auto; }

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.6rem, 1.6vw, 1.6rem);
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 0.35rem 0;
  font-size: var(--fs-15);
  color: var(--c-mist);
  white-space: nowrap;
  transition: color var(--dur) var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 100%;
  background: var(--c-cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.12s var(--ease);
}

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

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

/* 操作区 */
.hdr-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: 0.75rem;
  flex: 0 0 auto;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--c-paper);
  font-size: var(--fs-13);
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-toggle:hover,
.nav-toggle:focus-visible { border-color: var(--c-cyan); color: var(--c-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 0.18s var(--ease), opacity 0.18s var(--ease);
}
.nav-toggle-bar::before { top: -5px; }
.nav-toggle-bar::after { top: 5px; }

.site-header[data-open] .nav-toggle-bar { background: transparent; }
.site-header[data-open] .nav-toggle-bar::before { transform: translateY(5px) rotate(45deg); }
.site-header[data-open] .nav-toggle-bar::after { transform: translateY(-5px) rotate(-45deg); }

/* 第二栏：固定战绩入口 */
.hdr-axis {
  position: relative;
  background: transparent;
  border-top: 1px solid transparent;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.site-header.is-condensed .hdr-axis {
  background: rgba(11, 44, 61, 0.92);
  border-top-color: var(--line-soft);
}

.hdr-axis-inner {
  height: var(--axis-h);
  gap: 1rem;
}

.score-entry {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.3rem 0.55rem 0.3rem 0;
  color: var(--c-paper);
  font-size: var(--fs-13);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}
.score-entry:hover,
.score-entry:focus-visible { color: var(--c-cyan); }

.score-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-mint);
  box-shadow: 0 0 0 3px rgba(122, 231, 199, 0.16);
}

.score-caret {
  font-family: var(--f-mono);
  color: var(--c-cyan);
  transition: transform var(--dur) var(--ease);
}
.score-entry[aria-expanded="true"] .score-caret { transform: rotate(45deg); }

.axis-status {
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.05em;
  color: var(--c-mist);
  white-space: nowrap;
}

/* 双轴面板 */
.score-panel {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  background: rgba(11, 44, 61, 0.98);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.score-panel:not([hidden]) { animation: panel-in 0.18s var(--ease) both; }

.score-panel-inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 1rem var(--gut) 1.25rem;
}

.axis-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px dashed var(--line-soft);
}
.axis-row:last-of-type { border-bottom: 0; }

.axis-key { flex: 0 0 auto; min-width: 4.5em; }

.axis-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.axis-chip {
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--c-mist);
  font-family: var(--f-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease), background-color 0.16s var(--ease);
}
.axis-chip:hover,
.axis-chip:focus-visible { border-color: var(--c-cyan); color: var(--c-cyan); }
.axis-chip[aria-pressed="true"] {
  border-color: var(--c-cyan);
  background: var(--c-cyan);
  color: var(--c-ink);
}

.axis-hint {
  margin-top: 0.6rem;
  padding-left: calc(4.5em + 1rem);
}

/* --- 按钮 ----------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--c-paper);
  font-size: var(--fs-13);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.btn:hover,
.btn:focus-visible { border-color: var(--c-cyan); color: var(--c-cyan); }

.btn-primary {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-ink);
  font-weight: 600;
}
.btn-primary:hover,
.btn-primary:focus-visible { background: transparent; color: var(--c-cyan); }

.btn-primary:hover .quick-mark,
.btn-primary:focus-visible .quick-mark { background: var(--c-cyan); }

.btn-quick {
  border-color: var(--line-cyan);
  color: var(--c-cyan);
}
.btn-quick:hover,
.btn-quick:focus-visible {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-ink);
}
.btn-quick:hover .quick-mark,
.btn-quick:focus-visible .quick-mark { background: var(--c-ink); }

.quick-mark {
  width: 6px;
  height: 6px;
  background: var(--c-cyan);
  transform: rotate(45deg);
  transition: background-color var(--dur) var(--ease);
}

.btn-gold {
  border-color: rgba(255, 179, 0, 0.5);
  color: var(--c-amber);
}
.btn-gold:hover,
.btn-gold:focus-visible {
  background: var(--c-amber);
  border-color: var(--c-amber);
  color: var(--c-ink);
}

/* --- 徽标与状态 ----------------------------------------------------------- */
.tick {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: var(--fs-13);
  letter-spacing: 0.04em;
  color: var(--c-mint);
}
.tick::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.badge-gold,
.badge-indigo,
.badge-mint {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 1.7;
}
.badge-gold { color: var(--c-amber); }
.badge-indigo { color: #B7A9EE; background: rgba(59, 46, 110, 0.6); border-color: rgba(183, 169, 238, 0.4); }
.badge-mint { color: var(--c-mint); }

/* --- 面包屑 --------------------------------------------------------------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.6rem;
  font-family: var(--f-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.05em;
  color: var(--c-mist);
}
.breadcrumb li { display: inline-flex; align-items: center; }
.breadcrumb li::after {
  content: "/";
  margin-left: 0.6rem;
  color: var(--c-copper);
}
.breadcrumb li:last-child::after { content: ""; margin-left: 0; }
.breadcrumb a { transition: color var(--dur) var(--ease); }
.breadcrumb a:hover,
.breadcrumb a:focus-visible { color: var(--c-cyan); }
.breadcrumb [aria-current="page"] { color: var(--c-paper); }

/* --- 正文容器 ------------------------------------------------------------- */
.prose {
  max-width: 36em;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--c-paper);
}
.prose > * + * { margin-top: 1.1em; }
.prose h2 {
  font-size: var(--fs-28);
  margin-top: 2em;
}
.prose h3 { font-size: var(--fs-20); }
.prose ul,
.prose ol {
  display: grid;
  gap: 0.5em;
  padding-left: 1.25em;
}
.prose li { position: relative; }
.prose li::before {
  content: "";
  position: absolute;
  left: -1.25em;
  top: 0.85em;
  width: 0.55em;
  height: 1px;
  background: var(--c-cyan);
}
.prose a {
  color: var(--c-cyan);
  border-bottom: 1px solid var(--line-cyan);
  transition: border-color var(--dur) var(--ease);
}
.prose a:hover,
.prose a:focus-visible { border-bottom-color: var(--c-cyan); }
.prose blockquote {
  padding-left: 1.1rem;
  border-left: 1px solid var(--line-cyan);
  font-family: var(--f-serif);
  color: var(--c-mist);
}

/* --- 栅格 ----------------------------------------------------------------- */
.grid { display: grid; gap: clamp(1rem, 2.4vw, 2rem); }
.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)); }

/* --- 索引卡 --------------------------------------------------------------- */
.index-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: clamp(1.05rem, 2vw, 1.5rem);
  border: 1px solid var(--line);
  background: rgba(18, 48, 68, 0.42);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}
.index-card:hover,
.index-card:focus-within {
  border-color: var(--c-cyan);
  background: rgba(18, 48, 68, 0.62);
}

.card-index {
  font-family: var(--f-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.12em;
  color: var(--c-mist);
}

.card-title {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: var(--fs-20);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.card-desc {
  font-size: var(--fs-15);
  line-height: 1.7;
  color: var(--c-mist);
}

/* --- 数据条 --------------------------------------------------------------- */
.data-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.75rem;
  padding: 0.7rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-family: var(--f-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.05em;
  color: var(--c-mist);
}
.data-strip b {
  color: var(--c-cyan);
  font-weight: 600;
}

/* --- 宽幅图版（供页面阶段放图） ------------------------------------------- */
.plate {
  position: relative;
  border: 1px solid var(--line);
  background: var(--c-ink-2);
  overflow: hidden;
}

.plate-media {
  position: relative;
  aspect-ratio: 16 / 7;
  background: linear-gradient(155deg, #0B2C3D 0%, #061A2B 58%, #123044 100%);
}
.plate-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.plate-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--c-ink) 0%, rgba(6, 26, 43, 0) 20%, rgba(6, 26, 43, 0) 80%, var(--c-ink) 100%);
  pointer-events: none;
}

.plate-caption {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  padding: 0.65rem 0.85rem;
  border-top: 1px solid var(--line);
  font-family: var(--f-mono);
  font-size: var(--fs-13);
  color: var(--c-mist);
}

/* --- 纵向索引轴 ----------------------------------------------------------- */
.axis-rail {
  position: relative;
  padding-left: 1.5rem;
  border-left: 1px solid var(--line);
}
.axis-rail::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  width: 1px;
  height: 64px;
  background: var(--c-cyan);
}

/* --- 页脚 ----------------------------------------------------------------- */
.site-footer {
  position: relative;
  margin-top: clamp(4rem, 9vw, 8rem);
  padding: clamp(2.75rem, 6vw, 4.5rem) 0 1.75rem;
  background: var(--c-ink-2);
  border-top: 1px solid var(--line);
  color: var(--c-paper);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(159, 182, 196, 0.09) 1px, transparent 1px);
  background-size: 96px 100%;
  pointer-events: none;
}
.site-footer .container { position: relative; z-index: 1; }

.ftr-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.25rem 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line-soft);
}

.ftr-mark {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: var(--fs-28);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.ftr-tag { margin-top: 0.4rem; }

.ftr-contact {
  display: grid;
  gap: 0.45rem;
  min-width: min(100%, 24rem);
}
.ftr-contact li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
}
.ftr-contact .eyebrow { min-width: 4.5em; }
.ftr-val {
  font-size: var(--fs-15);
  color: var(--c-paper);
  word-break: break-word;
}

.ftr-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem 1.5rem;
  padding: 2.25rem 0;
}

.ftr-col-title {
  margin-bottom: 0.9rem;
  font-family: var(--f-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

.ftr-list { display: grid; gap: 0.55rem; }

.ftr-link {
  position: relative;
  display: inline-block;
  font-size: var(--fs-15);
  color: var(--c-mist);
  transition: color var(--dur) var(--ease);
}
.ftr-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--c-cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.12s var(--ease);
}
.ftr-link:hover,
.ftr-link:focus-visible { color: var(--c-paper); }
.ftr-link:hover::after,
.ftr-link:focus-visible::after { transform: scaleX(1); }

/* 下载勾选区 */
.ftr-download {
  position: relative;
  padding: clamp(1.25rem, 2.6vw, 1.85rem);
  border: 1px solid var(--line);
  background: rgba(18, 48, 68, 0.5);
}
.ftr-download::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 72px;
  height: 1px;
  background: var(--c-amber);
}

.dl-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  margin-bottom: 1.25rem;
}
.dl-title {
  margin-top: 0.35rem;
  font-size: var(--fs-20);
  letter-spacing: -0.01em;
}

.pick-count {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.8rem;
  border: 1px solid rgba(255, 179, 0, 0.45);
  border-radius: 999px;
  color: var(--c-amber);
  font-size: var(--fs-13);
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.pick-count[data-full="true"] {
  border-color: var(--c-mint);
  color: var(--c-mint);
}

.pick-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0.5rem;
}

.pick-item { position: relative; }

.pick-box {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  margin: 0;
  width: 14px;
  height: 14px;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  transition: border-color 0.16s var(--ease), background-color 0.16s var(--ease);
}
.pick-box:hover { border-color: var(--c-amber); }

.pick-box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.5px;
  width: 4px;
  height: 8px;
  border-right: 1.5px solid var(--c-ink);
  border-bottom: 1.5px solid var(--c-ink);
  transform: rotate(42deg) scale(0);
  transform-origin: center;
  transition: transform 0.16s var(--ease);
}
.pick-box:checked {
  background: var(--c-amber);
  border-color: var(--c-amber);
}
.pick-box:checked::after { transform: rotate(42deg) scale(1); }

.pick-label {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.6rem 0.8rem 0.6rem 2rem;
  border: 1px solid var(--line-soft);
  color: var(--c-mist);
  font-size: var(--fs-15);
  cursor: pointer;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease), background-color 0.16s var(--ease);
}
.pick-label:hover { border-color: var(--c-amber); color: var(--c-paper); }

.pick-box:checked + .pick-label {
  border-color: rgba(255, 179, 0, 0.5);
  background: rgba(255, 179, 0, 0.07);
  color: var(--c-paper);
}

.pick-box:disabled + .pick-label {
  border-color: rgba(159, 182, 196, 0.1);
  color: rgba(159, 182, 196, 0.42);
  cursor: not-allowed;
}
.pick-box:disabled { cursor: not-allowed; border-color: rgba(159, 182, 196, 0.14); }

.pick-no { font-size: var(--fs-13); letter-spacing: 0.1em; color: var(--c-copper); }
.pick-name { min-width: 0; }
.pick-meta { font-size: 12px; letter-spacing: 0.1em; color: var(--c-copper); }

.pick-note {
  margin-top: 0.9rem;
  font-size: var(--fs-13);
  letter-spacing: 0.04em;
  color: var(--c-amber);
}

/* 页脚底栏 */
.ftr-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-soft);
}

.ftr-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

.ftr-meta,
.ftr-copy {
  font-size: var(--fs-13);
  letter-spacing: 0.05em;
  color: var(--c-mist);
}
.ftr-copy { margin-left: auto; }

/* --- 响应式 --------------------------------------------------------------- */
@media (max-width: 1080px) {
  .ftr-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  :root { --shell-offset: 118px; }

  .hdr-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    margin-left: 0;
    padding: 0.75rem var(--gut) 1.5rem;
    background: rgba(6, 26, 43, 0.98);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
  }
  .site-header[data-open] .hdr-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-link {
    display: block;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--line-soft);
    font-size: var(--fs-17);
    color: var(--c-paper);
  }
  .nav-link::after { display: none; }
  .nav-link[aria-current="page"] { color: var(--c-cyan); }

  .hdr-actions { margin-left: auto; }
  .nav-toggle { display: inline-flex; }

  .axis-status { display: none; }

  .axis-hint { padding-left: 0; }

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

@media (max-width: 720px) {
  .ftr-contact { min-width: 100%; }
  .ftr-grid { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
  .ftr-base { flex-direction: column; align-items: flex-start; }
  .ftr-copy { margin-left: 0; }
}

@media (max-width: 600px) {
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: minmax(0, 1fr); }

  .nav-toggle-text { display: none; }
  .quick-text { display: none; }
  .btn-quick { padding: 0.6rem 0.75rem; }

  .pick-list { grid-template-columns: minmax(0, 1fr); }

  .plate-media { aspect-ratio: 4 / 3; }
}

/* --- 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;
  }

  .site-header::after,
  .hdr-brand::after { transform: scaleX(1); }
}