/* =========================================================
   奇异果体育链接 · 共享站点样式 /assets/site.css
   1. Reset  2. 变量  3. 中文排版  4. 通用组件
   5. 头部  6. 页脚  7. 响应式与动效降级
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 132px;
}

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

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

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

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

a { color: inherit; }

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

[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  color-scheme: light;

  /* 果肉青 → 果皮棕 → 深夜蓝 */
  --flesh: #8EC63F;
  --flesh-soft: #A9D86A;
  --flesh-deep: #3E7A22;
  --skin: #6A4728;
  --skin-deep: #4B3018;
  --red: #D8322A;
  --yellow: #FFC300;
  --night: #0D1B2A;
  --night-2: #1B2E45;
  --paper: #F6F7EC;
  --paper-deep: #EDEFDC;
  --mist: #DDEBC6;
  --ink: #14201A;
  --slate: #5C6B60;

  --line: rgba(20, 32, 26, 0.14);
  --line-soft: rgba(20, 32, 26, 0.08);

  /* 1.25 字号阶梯 */
  --fs-12: 0.75rem;
  --fs-14: 0.875rem;
  --fs-17: 1.0625rem;
  --fs-21: 1.3125rem;
  --fs-26: 1.625rem;
  --fs-34: 2.125rem;
  --fs-44: 2.75rem;
  --fs-58: 3.625rem;
  --fs-76: 4.75rem;
  --fs-96: 6rem;

  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system,
    "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace,
    "SFMono-Regular", Menlo, Consolas, monospace;

  --shell: 1240px;
  --gutter: 24px;
  --r-sm: 12px;
  --r-card: 22px;
  --r-lg: 30px;
  --r-pill: 999px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  --shadow-lift: 0 22px 40px -28px rgba(13, 27, 42, 0.6),
    0 4px 0 -2px rgba(62, 122, 34, 0.35);
}

/* ---------- 3. 中文排版与全局底色 ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--fs-17);
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 10% -6%, rgba(142, 198, 63, 0.22), transparent 44%),
    radial-gradient(circle at 94% 4%, rgba(255, 195, 0, 0.16), transparent 38%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(var(--fs-44), 7vw, var(--fs-76)); }
h2 { font-size: clamp(var(--fs-26), 4vw, var(--fs-34)); }
h3 { font-size: var(--fs-21); }
h4 { font-size: var(--fs-17); }

strong { font-weight: 800; }
small { font-size: var(--fs-12); }

.num,
[data-num] {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

/* 焦点 */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--flesh-deep);
  outline-offset: 3px;
  border-radius: 6px;
}

.panel-night a:focus-visible,
.panel-night button:focus-visible,
.site-footer a:focus-visible,
.site-footer button:focus-visible {
  outline-color: var(--yellow);
}

/* ---------- 4. 通用组件 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: 48px; }
.section--tight { padding-block: 24px; }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 24px;
  margin-bottom: 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.section-title {
  font-size: clamp(var(--fs-26), 3.4vw, var(--fs-34));
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.label-caps {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--flesh-deep);
}

.kicker::before {
  content: "";
  width: 24px;
  height: 4px;
  border-radius: 2px;
  background: var(--flesh);
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* 跳转链接 */
.skip-link {
  position: fixed;
  top: -120px;
  left: 16px;
  z-index: 400;
  display: inline-flex;
  align-items: center;
  padding: 12px 22px;
  border-radius: var(--r-pill);
  background: var(--ink);
  color: var(--paper);
  font-size: var(--fs-14);
  font-weight: 800;
  text-decoration: none;
  transition: top 0.22s var(--ease-out);
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 14px;
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border: 2px solid transparent;
  border-radius: var(--r-pill);
  font-family: var(--font-sans);
  font-size: var(--fs-14);
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), background-color 0.2s,
    color 0.2s, border-color 0.2s;
}

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

.btn--solid { background: var(--flesh-deep); color: #fff; }
.btn--solid:hover { background: var(--ink); }

.btn--ink { background: var(--ink); color: var(--paper); }
.btn--ink:hover { background: var(--flesh-deep); }

.btn--ghost {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}
.btn--ghost:hover { background: var(--mist); border-color: var(--flesh-deep); }

.btn--yellow { background: var(--yellow); color: var(--ink); }
.btn--yellow:hover { background: var(--flesh); }

/* 胶囊筛选与状态标签 */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1.5px solid var(--line);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-12);
  font-weight: 800;
  letter-spacing: 0.1em;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color 0.18s, border-color 0.18s, color 0.18s;
}

.chip:hover { border-color: var(--flesh-deep); background: var(--paper-deep); }

.chip[aria-pressed="true"] {
  background: var(--flesh);
  border-color: var(--flesh-deep);
  color: var(--ink);
}

.chip--yellow {
  background: var(--yellow);
  border-color: transparent;
  color: var(--ink);
}

.chip--red {
  background: var(--red);
  border-color: transparent;
  color: #fff;
}

/* 面包屑 */
.breadcrumb {
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--slate);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 6px;
  color: rgba(92, 107, 96, 0.55);
}

.breadcrumb__item a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.breadcrumb__item a:hover { border-bottom-color: var(--flesh-deep); }

.breadcrumb__item [aria-current="page"] {
  color: var(--ink);
  font-weight: 800;
}

/* 正文容器 */
.prose {
  max-width: 38em;
  font-size: var(--fs-17);
  line-height: 1.75;
}

.prose > * + * { margin-top: 1.05em; }

.prose h2 {
  font-size: var(--fs-26);
  margin-top: 1.8em;
}

.prose h3 {
  font-size: var(--fs-21);
  margin-top: 1.5em;
}

.prose ul,
.prose ol {
  padding-left: 1.4em;
  list-style: disc;
}

.prose ol { list-style: decimal; }
.prose li + li { margin-top: 0.4em; }

.prose a {
  color: var(--flesh-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 栅格 */
.grid { display: grid; gap: var(--gutter); }

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

.grid--12 > .span-3 { grid-column: span 3; }
.grid--12 > .span-4 { grid-column: span 4; }
.grid--12 > .span-5 { grid-column: span 5; }
.grid--12 > .span-6 { grid-column: span 6; }
.grid--12 > .span-7 { grid-column: span 7; }
.grid--12 > .span-8 { grid-column: span 8; }
.grid--12 > .span-12 { grid-column: span 12; }

/* 卡片 */
.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-card);
  background: #fff;
  transition: transform 0.22s var(--ease-out), box-shadow 0.22s var(--ease-out),
    border-color 0.22s;
}

.card:hover,
.card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(62, 122, 34, 0.35);
  box-shadow: var(--shadow-lift);
}

/* 深夜蓝数据区 */
.panel-night {
  position: relative;
  padding: clamp(24px, 4vw, 48px);
  border-radius: var(--r-lg);
  background-color: var(--night);
  background-image:
    repeating-linear-gradient(90deg, rgba(246, 247, 236, 0.055) 0 1px, transparent 1px 64px),
    linear-gradient(180deg, var(--night-2), var(--night));
  color: var(--paper);
  overflow: hidden;
}

/* 停顿带 */
.pause-band {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 26px;
  padding: 18px 24px;
  border-left: 6px solid var(--yellow);
  border-radius: 0 16px 16px 0;
  background: var(--mist);
  color: var(--ink);
  font-size: var(--fs-14);
}

/* 数据块 */
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(var(--fs-34), 5vw, var(--fs-58));
  font-weight: 700;
  line-height: 1;
}

.stat__label {
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.panel-night .stat__label { color: rgba(246, 247, 236, 0.72); }

/* 图片容器基础（页面阶段放入 <img> 或占位） */
.media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border-radius: var(--r-card);
  background-color: var(--night);
  background-image:
    repeating-linear-gradient(115deg, rgba(246, 247, 236, 0.06) 0 1px, transparent 1px 26px),
    linear-gradient(160deg, var(--night-2), var(--night));
  isolation: isolate;
}

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

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }

.media--slant {
  border-top-right-radius: 0;
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
}

.media__caption {
  margin-top: 10px;
  font-size: var(--fs-12);
  line-height: 1.6;
  color: var(--slate);
}

/* 显现协议 */
[data-js="on"] [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}

[data-js="on"] [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 5. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 0 rgba(142, 198, 63, 0.28);
}

/* 滚动进度 */
.scroll-progress {
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: rgba(20, 32, 26, 0.08);
  pointer-events: none;
}

.scroll-progress > span {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--flesh), var(--yellow) 58%, var(--red));
}

/* 刊头 */
.masthead { position: relative; }

.masthead__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 18px var(--gutter) 14px;
}

.masthead__rail {
  height: 2px;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(20, 32, 26, 0.45) 0 14px,
    transparent 14px 24px
  );
  opacity: 0.75;
  transition: opacity 0.25s ease;
}

.masthead__rail--tail { max-width: 120px; }

.masthead__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 11px;
  background: var(--flesh);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.06em;
  transform: rotate(-4deg);
  transition: width 0.25s var(--ease-out), height 0.25s var(--ease-out),
    font-size 0.25s var(--ease-out);
}

.brand__text {
  font-size: clamp(var(--fs-26), 4.2vw, var(--fs-44));
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  white-space: nowrap;
  transition: font-size 0.25s var(--ease-out);
}

.brand__tagline {
  font-size: var(--fs-12);
  letter-spacing: 0.24em;
  color: var(--slate);
  white-space: nowrap;
}

.masthead__tools {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.cta-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--r-pill);
  background: var(--ink);
  color: var(--paper);
  font-size: var(--fs-14);
  font-weight: 800;
  letter-spacing: 0.04em;
  white-space: nowrap;
  text-decoration: none;
  transition: background-color 0.2s, transform 0.2s var(--ease-out);
}

.cta-pill::after {
  content: "→";
  font-size: 0.95em;
  line-height: 1;
}

.cta-pill:hover {
  background: var(--flesh-deep);
  transform: translateY(-2px);
}

.cta-pill:focus-visible { outline-color: var(--flesh); }

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border: 2px solid var(--ink);
  border-radius: var(--r-pill);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-12);
  font-weight: 800;
  letter-spacing: 0.14em;
  line-height: 1.2;
  cursor: pointer;
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: background-color 0.18s ease;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform 0.22s var(--ease-out), top 0.22s var(--ease-out);
}

.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  top: 0;
  transform: rotate(-45deg);
}

/* 跑道式栏目条 */
.site-nav {
  position: relative;
  display: block;
  background: var(--paper);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 4px var(--gutter) 8px;
  list-style: none;
}

.site-nav__item { position: relative; }

.site-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--r-pill);
  color: var(--ink);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.site-nav__num {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--flesh-deep);
  transition: color 0.18s ease;
}

.site-nav__label { white-space: nowrap; }

.site-nav__link:hover { background: var(--mist); }

.site-nav__link[aria-current="page"] {
  background: var(--flesh);
  color: var(--ink);
}

.site-nav__link[aria-current="page"] .site-nav__num { color: var(--ink); }

.site-nav::after {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--flesh) 16%,
    var(--flesh) 84%,
    transparent
  );
}

@media (min-width: 901px) {
  .site-nav__item + .site-nav__item::before {
    content: "";
    position: absolute;
    inset-inline-start: 0;
    top: 50%;
    width: 1px;
    height: 14px;
    transform: translateY(-50%) skewX(-18deg);
    background: var(--line);
  }
}

/* 刊头收缩态 */
.site-header[data-condensed] .masthead__inner { padding-block: 8px 6px; }
.site-header[data-condensed] .brand__text { font-size: var(--fs-21); }
.site-header[data-condensed] .brand__mark {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  font-size: 10px;
}
.site-header[data-condensed] .brand__tagline {
  display: none;
}
.site-header[data-condensed] .masthead__rail { opacity: 0.35; }

/* ---------- 6. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: 96px;
  background-color: var(--skin);
  background-image: radial-gradient(
    circle at 88% 8%,
    rgba(142, 198, 63, 0.22),
    transparent 46%
  );
  color: var(--paper);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  display: block;
  height: 10px;
  background-image:
    repeating-linear-gradient(115deg, var(--flesh) 0 20px, transparent 20px 40px),
    linear-gradient(90deg, var(--skin-deep), var(--skin-deep));
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, minmax(0, 1fr));
  gap: 44px 32px;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 56px var(--gutter) 44px;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.footer__brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--paper);
}

.footer__brand-mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--flesh);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 700;
  transform: rotate(-4deg);
}

.footer__brand-name {
  font-size: var(--fs-21);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.footer__brand-note {
  max-width: 30ch;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: rgba(246, 247, 236, 0.8);
}

.footer__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  padding: 11px 22px;
  border-radius: var(--r-pill);
  background: var(--yellow);
  color: var(--ink);
  font-size: var(--fs-14);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background-color 0.2s, transform 0.2s var(--ease-out);
}

.footer__cta:hover {
  background: var(--flesh);
  transform: translateY(-2px);
}

.footer__col { min-width: 0; }

.footer__col-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: var(--fs-12);
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--flesh-soft);
}

.footer__col-title::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--flesh);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer__link {
  display: inline-block;
  padding: 3px 0;
  font-size: var(--fs-14);
  color: rgba(246, 247, 236, 0.86);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.footer__link:hover {
  color: #fff;
  border-bottom-color: var(--yellow);
}

.footer__meta {
  border-top: 1px solid rgba(246, 247, 236, 0.22);
}

.footer__meta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 32px;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 20px var(--gutter) 8px;
  font-size: var(--fs-12);
  line-height: 1.7;
}

.footer__contact {
  max-width: 68ch;
  color: rgba(246, 247, 236, 0.78);
}

.footer__legal {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: rgba(246, 247, 236, 0.7);
  white-space: nowrap;
}

.footer__wordmark {
  padding: 0 var(--gutter) 10px;
  font-size: clamp(48px, 13vw, 180px);
  font-weight: 900;
  line-height: 0.78;
  letter-spacing: -0.04em;
  text-align: right;
  color: rgba(246, 247, 236, 0.1);
  white-space: nowrap;
  overflow: hidden;
  user-select: none;
  pointer-events: none;
}

/* ---------- 7. 响应式 ---------- */
@media (max-width: 1024px) {
  .footer__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 36px 28px;
  }

  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  html { scroll-padding-top: 96px; }

  .masthead__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 12px var(--gutter);
    gap: 10px;
  }

  .masthead__rail { display: none; }

  .masthead__brand {
    align-items: flex-start;
    text-align: left;
  }

  .brand__text { font-size: var(--fs-21); }
  .brand__tagline { display: none; }

  .cta-pill { display: none; }

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

  /* 移动导航折叠 */
  .site-nav {
    display: none;
    border-top: 1px solid var(--line);
  }

  .site-nav[data-open] { display: block; }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px var(--gutter) 16px;
  }

  .site-nav__item { border-top: 1px dashed var(--line); }
  .site-nav__item:first-child { border-top: 0; }

  .site-nav__item + .site-nav__item::before { display: none; }

  .site-nav__link {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    padding: 14px 10px;
    border-radius: var(--r-sm);
    font-size: var(--fs-17);
  }

  .site-nav__num { font-size: var(--fs-12); }

  .site-nav__link[aria-current="page"] {
    background: var(--mist);
    box-shadow: inset 4px 0 0 var(--flesh);
  }

  .grid--12 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .grid--12 > [class*="span-"] { grid-column: 1 / -1; }

  .media--slant { clip-path: polygon(0 0, 100% 0, 100% 96%, 0 100%); }

  .section { padding-block: 36px; }

  .site-header[data-condensed] .brand__text { font-size: var(--fs-21); }
}

@media (max-width: 640px) {
  :root { --gutter: 18px; }

  body { font-size: var(--fs-17); }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-top: 40px;
  }

  .footer__meta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .footer__legal { white-space: normal; }

  .footer__wordmark {
    text-align: left;
    padding-bottom: 14px;
  }

  .pause-band { border-left-width: 5px; padding: 16px 18px; }

  .stat__value { font-size: var(--fs-34); }
}

/* 动效降级 */
@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;
  }

  [data-js="on"] [data-reveal],
  [data-js="on"] [data-reveal].is-in {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .card:hover,
  .btn:hover,
  .cta-pill:hover,
  .footer__cta:hover { transform: none; }
}