/* ============================================================
   江南体育 · 全站共享样式 /assets/site.css
   ============================================================ */

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

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

body,
h1, h2, h3, h4, 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%; }

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

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

table { border-collapse: collapse; width: 100%; }

/* ---------- 变量 ---------- */
:root {
  --jn-daiqing: #0E3B43;
  --jn-hulan: #1B6E8C;
  --jn-mo: #10171A;
  --jn-zhi: #F4EFE4;
  --jn-ci: #FAF8F2;
  --jn-wu: #D9D2C5;
  --jn-cheng: #FF6B2C;
  --jn-huang: #FFD43B;
  --jn-shui: #2E8B74;
  --jn-ye: #071E26;

  --jn-line: rgba(14, 59, 67, 0.14);
  --jn-line-strong: rgba(14, 59, 67, 0.28);
  --jn-shadow: 0 1px 0 rgba(14, 59, 67, 0.05), 0 10px 28px -22px rgba(7, 30, 38, 0.55);
  --jn-shadow-lift: 0 2px 0 rgba(14, 59, 67, 0.06), 0 26px 44px -30px rgba(7, 30, 38, 0.6);

  --jn-font-title: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --jn-font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --jn-font-num: "SF Mono", "Menlo", "Consolas", "Roboto Mono", ui-monospace, monospace;

  --jn-wrap: 1240px;
  --jn-gap: clamp(16px, 2.4vw, 32px);
  --jn-radius: 2px;

  --jn-header-h: 74px;
  --jn-progress: 0;
}

/* ---------- 基础排版 ---------- */
body {
  font-family: var(--jn-font-body);
  font-size: clamp(15px, 0.55vw + 13.6px, 17px);
  line-height: 1.8;
  color: var(--jn-mo);
  background-color: var(--jn-zhi);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--jn-font-title);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--jn-daiqing);
}

p + p { margin-top: 0.9em; }

::selection {
  background: var(--jn-huang);
  color: var(--jn-daiqing);
}

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

/* ---------- 布局容器 ---------- */
.jn-wrap {
  width: 100%;
  max-width: var(--jn-wrap);
  margin: 0 auto;
  padding-inline: clamp(20px, 4vw, 56px);
}

.jn-section {
  position: relative;
  padding-block: clamp(56px, 8vw, 116px);
}

.jn-section--paper { background: var(--jn-zhi); }
.jn-section--mist { background: var(--jn-ci); }
.jn-section--deep { background: var(--jn-ye); color: var(--jn-ci); }
.jn-section--deep h1,
.jn-section--deep h2,
.jn-section--deep h3 { color: var(--jn-ci); }

.jn-grid {
  display: grid;
  gap: var(--jn-gap);
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.jn-grid--split { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.jn-grid--tight { gap: clamp(10px, 1.4vw, 18px); }

/* ---------- 文本组件 ---------- */
.jn-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--jn-font-title);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--jn-hulan);
}

.jn-eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--jn-cheng);
  flex: none;
}

.jn-title {
  font-size: clamp(28px, 3.2vw, 44px);
}

.jn-title--xl {
  font-size: clamp(40px, 7.4vw, 92px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 0.98;
}

.jn-title--lg {
  font-size: clamp(32px, 4.6vw, 62px);
}

.jn-lead {
  font-size: clamp(16px, 0.9vw + 14px, 20px);
  line-height: 1.85;
  color: rgba(16, 23, 26, 0.78);
  max-width: 62ch;
}

.jn-section--deep .jn-lead { color: rgba(250, 248, 242, 0.76); }

.jn-meta {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(16, 23, 26, 0.5);
}

.jn-section--deep .jn-meta,
.jn-foot .jn-meta { color: rgba(250, 248, 242, 0.58); }

.jn-num {
  font-family: var(--jn-font-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.jn-rule {
  height: 1px;
  border: 0;
  background: var(--jn-line);
  margin-block: clamp(28px, 4vw, 56px);
}

.jn-section--deep .jn-rule { background: rgba(250, 248, 242, 0.16); }

/* ---------- skip link ---------- */
.jn-skip {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  transform: translateY(-160%);
  background: var(--jn-daiqing);
  color: var(--jn-ci);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  transition: transform 0.2s ease;
}

.jn-skip:focus-visible { transform: translateY(0); }

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

/* ---------- 头部 ---------- */
.jn-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 120;
  color: var(--jn-ci);
  background: transparent;
  border-bottom: 1px solid rgba(250, 248, 242, 0.16);
  transition: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease,
    box-shadow 0.35s ease, backdrop-filter 0.35s ease;
}

.jn-header::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(7, 30, 38, 0.62), rgba(7, 30, 38, 0));
  opacity: 1;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.jn-header[data-scrolled] {
  background: var(--jn-zhi);
  color: var(--jn-daiqing);
  border-bottom-color: var(--jn-line);
  box-shadow: var(--jn-shadow);
}

.jn-header[data-scrolled]::after { opacity: 0; }

.jn-header__inner {
  width: 100%;
  max-width: var(--jn-wrap);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 56px);
  min-height: var(--jn-header-h);
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.6vw, 40px);
}

/* 品牌 */
.jn-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.jn-brand__mark {
  width: 26px;
  height: 26px;
  flex: none;
  background: var(--jn-cheng);
  border-radius: 1px;
  transform: skewX(-12deg) rotate(45deg);
  box-shadow: inset 0 0 0 1px rgba(7, 30, 38, 0.2);
}

.jn-brand__mark--light { background: var(--jn-huang); }

.jn-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.jn-brand__text strong {
  font-family: var(--jn-font-title);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.jn-brand__tagline {
  font-family: var(--jn-font-num);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.62;
}

/* 导航 */
.jn-nav {
  display: flex;
  align-items: stretch;
  gap: clamp(6px, 1.4vw, 26px);
  margin-inline-start: auto;
  flex-wrap: nowrap;
}

.jn-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 6px 2px;
  font-size: 15px;
  font-weight: 600;
  color: inherit;
  opacity: 0.82;
  white-space: nowrap;
  transition: opacity 0.2s ease, color 0.2s ease;
}

.jn-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--jn-cheng);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.jn-nav__link:hover { opacity: 1; }
.jn-nav__link:hover::after { transform: scaleX(1); }

.jn-nav__link[aria-current="page"] {
  opacity: 1;
  font-weight: 800;
  color: var(--jn-cheng);
}

.jn-header[data-scrolled] .jn-nav__link[aria-current="page"] { color: var(--jn-cheng); }
.jn-header:not([data-scrolled]) .jn-nav__link[aria-current="page"] { color: var(--jn-huang); }

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

/* 头部 CTA */
.jn-header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

/* ---------- 按钮 ---------- */
.jn-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  font-family: var(--jn-font-title);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  border-radius: var(--jn-radius);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.22s ease, color 0.22s ease, border-color 0.22s ease,
    transform 0.22s ease, box-shadow 0.22s ease;
}

.jn-btn:hover { transform: translateY(-2px); }

.jn-btn--ghost {
  color: inherit;
  border-color: currentColor;
  background: transparent;
  opacity: 0.86;
}

.jn-btn--ghost:hover { opacity: 1; background: rgba(255, 212, 59, 0.14); }

.jn-header[data-scrolled] .jn-btn--ghost { border-color: var(--jn-line-strong); }

.jn-btn--solid {
  background: var(--jn-daiqing);
  color: var(--jn-ci);
  box-shadow: var(--jn-shadow);
}

.jn-btn--solid:hover { background: var(--jn-hulan); }

.jn-btn--accent {
  background: var(--jn-cheng);
  color: #1B0A02;
  box-shadow: 0 12px 26px -18px rgba(255, 107, 44, 0.9);
}

.jn-btn--accent:hover { background: var(--jn-huang); color: #241A00; }

/* ---------- 阅读进度 ---------- */
.jn-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 100%;
  transform: scaleX(var(--jn-progress));
  transform-origin: left;
  background: linear-gradient(90deg, var(--jn-hulan), var(--jn-cheng) 68%, var(--jn-huang));
}

/* ---------- 悬浮球 + 抽屉 ---------- */
.jn-burger {
  display: none;
  position: fixed;
  right: 18px;
  bottom: 22px;
  z-index: 160;
  width: 58px;
  height: 58px;
  border: 1px solid rgba(250, 248, 242, 0.28);
  border-radius: 50%;
  background: var(--jn-daiqing);
  color: var(--jn-ci);
  box-shadow: 0 18px 34px -20px rgba(7, 30, 38, 0.9);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.jn-burger__bars,
.jn-burger__bars::before,
.jn-burger__bars::after {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.jn-burger__bars { position: relative; }
.jn-burger__bars::before { content: ""; position: absolute; top: -6px; }
.jn-burger__bars::after { content: ""; position: absolute; top: 6px; }

.jn-burger__label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.jn-burger[data-open] .jn-burger__bars { background: transparent; }
.jn-burger[data-open] .jn-burger__bars::before { transform: translateY(6px) rotate(45deg); }
.jn-burger[data-open] .jn-burger__bars::after { transform: translateY(-6px) rotate(-45deg); }

.jn-drawer {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 150;
  width: min(340px, 86vw);
  height: 100%;
  padding: 26px 24px 30px;
  background: var(--jn-zhi);
  color: var(--jn-daiqing);
  border-left: 1px solid var(--jn-line);
  box-shadow: -30px 0 60px -40px rgba(7, 30, 38, 0.8);
  transform: translateX(104%);
  visibility: hidden;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 22px;
  transition: transform 0.34s cubic-bezier(0.22, 0.68, 0.24, 1), visibility 0.34s;
}

.jn-drawer[data-open] {
  transform: translateX(0);
  visibility: visible;
}

.jn-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--jn-line);
}

.jn-drawer__close {
  position: relative;
  width: 36px;
  height: 36px;
  border: 1px solid var(--jn-line-strong);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}

.jn-drawer__close::before,
.jn-drawer__close::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 15px;
  height: 2px;
  background: var(--jn-daiqing);
}

.jn-drawer__close::before { transform: translate(-50%, -50%) rotate(45deg); }
.jn-drawer__close::after { transform: translate(-50%, -50%) rotate(-45deg); }

.jn-drawer__nav {
  display: flex;
  flex-direction: column;
  position: relative;
  padding-left: 18px;
}

.jn-drawer__nav::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--jn-line-strong);
}

.jn-drawer__link {
  position: relative;
  padding: 12px 0;
  font-family: var(--jn-font-title);
  font-size: 17px;
  font-weight: 700;
  border-bottom: 1px dashed var(--jn-line);
}

.jn-drawer__link::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -4px;
  border-radius: 50%;
  background: var(--jn-wu);
}

.jn-drawer__link[aria-current="page"] { color: var(--jn-cheng); }
.jn-drawer__link[aria-current="page"]::before { background: var(--jn-cheng); }

.jn-drawer__cta {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.jn-drawer__foot { margin-top: auto; }

/* ---------- 面包屑 ---------- */
.jn-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 16px;
  font-size: 13px;
  color: rgba(16, 23, 26, 0.55);
}

.jn-breadcrumb a { color: var(--jn-hulan); }
.jn-breadcrumb a:hover { text-decoration: underline; }

.jn-breadcrumb li::after {
  content: "/";
  margin-left: 8px;
  color: var(--jn-wu);
}

.jn-breadcrumb li:last-child::after { content: ""; }

/* ---------- 面板 / 标签 ---------- */
.jn-panel {
  position: relative;
  background: var(--jn-ci);
  border: 1px solid var(--jn-line);
  border-radius: var(--jn-radius);
  padding: clamp(20px, 2.2vw, 32px);
  box-shadow: var(--jn-shadow);
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}

.jn-panel:hover {
  transform: translateY(-4px);
  box-shadow: var(--jn-shadow-lift);
  border-color: var(--jn-line-strong);
}

.jn-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: var(--jn-font-num);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--jn-daiqing);
  background: rgba(217, 210, 197, 0.6);
  border: 1px solid var(--jn-line);
  border-radius: var(--jn-radius);
}

.jn-tag--accent {
  background: rgba(255, 107, 44, 0.14);
  border-color: rgba(255, 107, 44, 0.4);
  color: #A63A08;
}

.jn-tag--live {
  background: var(--jn-huang);
  border-color: rgba(7, 30, 38, 0.18);
  color: var(--jn-daiqing);
}

.jn-tag--live::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--jn-cheng);
}

/* ---------- 列表 / 时间轴 ---------- */
.jn-list { display: grid; gap: 14px; }

.jn-list--timeline {
  position: relative;
  padding-left: 26px;
  gap: 0;
}

.jn-list--timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--jn-hulan), var(--jn-wu));
}

.jn-node {
  position: relative;
  padding: 18px 0 18px 4px;
  border-bottom: 1px dashed var(--jn-line);
  transition: color 0.3s ease, transform 0.3s ease;
}

.jn-node::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 26px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--jn-ci);
  border: 2px solid var(--jn-wu);
  transition: border-color 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
}

.jn-node.is-lit::before {
  border-color: var(--jn-cheng);
  background: var(--jn-huang);
  box-shadow: 0 0 0 5px rgba(255, 107, 44, 0.16);
}

.jn-node.is-lit { transform: translateX(3px); }

/* ---------- 标签页 ---------- */
.jn-tabs { display: grid; gap: 22px; }

.jn-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border-bottom: 1px solid var(--jn-line);
  padding-bottom: 12px;
}

.jn-tabs__btn {
  padding: 8px 16px;
  font-family: var(--jn-font-title);
  font-size: 14px;
  font-weight: 700;
  background: transparent;
  border: 1px solid var(--jn-line);
  border-radius: 999px;
  color: var(--jn-daiqing);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.jn-tabs__btn:hover { border-color: var(--jn-hulan); }

.jn-tabs__btn[aria-selected="true"] {
  background: var(--jn-daiqing);
  border-color: var(--jn-daiqing);
  color: var(--jn-ci);
}

.jn-tabs__panel[hidden] { display: none; }

/* ---------- 筛选 ---------- */
.jn-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.jn-filter__btn {
  padding: 7px 15px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--jn-line);
  background: rgba(250, 248, 242, 0.7);
  border-radius: var(--jn-radius);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.jn-filter__btn:hover { border-color: var(--jn-hulan); color: var(--jn-hulan); }

.jn-filter__btn[aria-pressed="true"] {
  background: var(--jn-cheng);
  border-color: var(--jn-cheng);
  color: #1B0A02;
}

[data-filter-item][hidden] { display: none; }

/* ---------- 折叠问答 ---------- */
.jn-accordion { display: grid; gap: 12px; border-top: 1px solid var(--jn-line); }

.jn-accordion__item {
  border-bottom: 1px solid var(--jn-line);
}

.jn-accordion__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 4px;
  text-align: left;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: var(--jn-font-title);
  font-size: clamp(16px, 0.8vw + 14px, 19px);
  font-weight: 700;
  color: var(--jn-daiqing);
}

.jn-accordion__btn::after {
  content: "+";
  font-family: var(--jn-font-num);
  font-size: 20px;
  color: var(--jn-cheng);
  transition: transform 0.25s ease;
}

.jn-accordion__btn[aria-expanded="true"]::after { transform: rotate(45deg); }

.jn-accordion__panel {
  padding: 0 4px 22px;
  color: rgba(16, 23, 26, 0.74);
}

.jn-accordion__panel[hidden] { display: none; }

/* ---------- 横向主题带 ---------- */
.jn-cta-band {
  position: relative;
  background: var(--jn-daiqing);
  color: var(--jn-ci);
  overflow: hidden;
}

.jn-cta-band::before {
  content: "";
  position: absolute;
  right: -12%;
  top: -60%;
  width: 58%;
  height: 220%;
  background: linear-gradient(180deg, rgba(255, 107, 44, 0.28), rgba(255, 212, 59, 0));
  transform: rotate(24deg);
  pointer-events: none;
}

.jn-cta-band__inner {
  position: relative;
  padding-block: clamp(40px, 6vw, 76px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.jn-cta-band__title {
  font-size: clamp(24px, 2.8vw, 40px);
  color: var(--jn-ci);
  max-width: 22ch;
}

.jn-cta-band__actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- 图片容器 ---------- */
.jn-figure {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, rgba(14, 59, 67, 0.14), rgba(27, 110, 140, 0.1));
  border: 1px solid var(--jn-line);
  border-radius: var(--jn-radius);
  aspect-ratio: 4 / 3;
}

.jn-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.jn-figure--frame { border-radius: 0; }

.jn-figure--frame::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(250, 248, 242, 0.5);
  pointer-events: none;
}

.jn-figure--reflect { aspect-ratio: 16 / 10; }

.jn-figure--reflect::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 34%;
  background: linear-gradient(0deg, rgba(7, 30, 38, 0.5), transparent);
  pointer-events: none;
}

.jn-figure--wide { aspect-ratio: 21 / 9; }

/* ---------- 显现动画 ---------- */
.jn-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.jn-reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 返回顶部 ---------- */
.jn-backtotop {
  position: fixed;
  right: 18px;
  bottom: 22px;
  z-index: 130;
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--jn-line-strong);
  border-radius: 50%;
  background: var(--jn-ci);
  color: var(--jn-daiqing);
  font-size: 18px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  box-shadow: var(--jn-shadow);
  transition: opacity 0.28s ease, transform 0.28s ease, visibility 0.28s;
}

.jn-backtotop[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: none;
}

/* ---------- 页脚 ---------- */
.jn-foot {
  background: var(--jn-ye);
  color: rgba(250, 248, 242, 0.82);
  padding-block: clamp(48px, 6vw, 84px) 28px;
}

.jn-foot__grid {
  display: grid;
  gap: clamp(22px, 3vw, 44px);
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1.3fr;
  align-items: start;
}

.jn-foot__brand { display: grid; gap: 10px; justify-items: start; }

.jn-foot__name {
  font-family: var(--jn-font-title);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--jn-ci);
}

.jn-foot__slogan {
  font-family: var(--jn-font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--jn-huang);
}

.jn-foot__line { color: rgba(250, 248, 242, 0.58); }

.jn-foot__title {
  font-family: var(--jn-font-title);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--jn-huang);
  margin-bottom: 14px;
}

.jn-foot__list { display: grid; gap: 10px; }

.jn-foot__list a {
  font-size: 14px;
  color: rgba(250, 248, 242, 0.8);
  transition: color 0.2s ease;
}

.jn-foot__list a:hover { color: var(--jn-cheng); }

.jn-foot__contact { display: grid; gap: 10px; }

.jn-foot__contact .jn-meta { color: rgba(250, 248, 242, 0.55); }

.jn-foot__legal {
  margin-top: clamp(32px, 4vw, 56px);
  padding-top: 22px;
  border-top: 1px solid rgba(250, 248, 242, 0.14);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  font-size: 12.5px;
  color: rgba(250, 248, 242, 0.6);
}

.jn-foot__legal a { color: rgba(250, 248, 242, 0.8); }
.jn-foot__legal a:hover { color: var(--jn-cheng); }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .jn-nav { gap: 10px; }
  .jn-nav__link { font-size: 14px; }
  .jn-header__actions .jn-btn--ghost { display: none; }
  .jn-foot__grid { grid-template-columns: 1fr 1fr 1fr; }
  .jn-foot__brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  :root { --jn-header-h: 64px; }

  .jn-nav,
  .jn-header__actions { display: none; }

  .jn-burger { display: inline-flex; }

  .jn-brand__tagline { display: none; }

  .jn-foot__grid { grid-template-columns: 1fr 1fr; }
  .jn-foot__contact { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .jn-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .jn-foot__grid { grid-template-columns: 1fr; }
  .jn-foot__legal { flex-direction: column; }
  .jn-drawer { width: 88vw; }
  .jn-backtotop { bottom: 92px; right: 22px; }
}

/* ---------- 可读性与动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .jn-reveal { opacity: 1; transform: none; }
  .jn-panel:hover { transform: none; }
  .jn-node.is-lit { transform: none; }
}

@media print {
  .jn-header, .jn-drawer, .jn-burger, .jn-backtotop { display: none !important; }
}