/* ==========================================================================
   K8体育手机版 · 共享样式表 /assets/site.css
   夜间赛场 × 数据脉冲 —— 深空黑基底 / 电子蓝骨架 / 荧光绿心跳 / 档案纸嵌入层
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root {
  /* 色板 */
  --k8-void: #05070C;
  --k8-night: #0C1220;
  --k8-panel: #131C31;
  --k8-blue: #2E7BFF;
  --k8-cyan: #4FD8FF;
  --k8-lime: #B6FF3C;
  --k8-orange: #FF8A3D;
  --k8-paper: #F3E9D2;
  --k8-ink: #1C1A17;
  --k8-white: #E6ECF7;
  --k8-silver: #8A94A6;
  --k8-line: #26304A;

  /* 语义映射 */
  --k8-bg: var(--k8-void);
  --k8-bg-alt: var(--k8-night);
  --k8-surface: var(--k8-panel);
  --k8-text: var(--k8-white);
  --k8-text-dim: var(--k8-silver);
  --k8-border: var(--k8-line);
  --k8-accent: var(--k8-blue);
  --k8-capsule-bg: rgba(12, 18, 32, 0.86);
  --k8-capsule-bg-solid: rgba(9, 13, 24, 0.95);
  --k8-hover-wash: rgba(46, 123, 255, 0.16);

  /* 字体 */
  --k8-font-display: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --k8-font-body: "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --k8-font-mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, "Courier New", monospace;

  /* 字号阶 12/14/16/20/26/34/48/64 */
  --k8-t12: 12px; --k8-t14: 14px; --k8-t16: 16px; --k8-t20: 20px;
  --k8-t26: 26px; --k8-t34: 34px; --k8-t48: 48px; --k8-t64: 64px;

  /* 间距阶 4/8/12/16/24/32/48/72 */
  --k8-s4: 4px; --k8-s8: 8px; --k8-s12: 12px; --k8-s16: 16px;
  --k8-s24: 24px; --k8-s32: 32px; --k8-s48: 48px; --k8-s72: 72px;

  /* 形状 */
  --k8-cut: 22px;
  --k8-cut-sm: 14px;
  --k8-radius: 999px;
  --k8-ease: cubic-bezier(.2, .7, .3, 1);
}

:root[data-theme="paper"] {
  --k8-bg: #F3E9D2;
  --k8-bg-alt: #EADFC4;
  --k8-surface: #FBF3E0;
  --k8-text: #1C1A17;
  --k8-text-dim: #6A6153;
  --k8-border: #C8B995;
  --k8-accent: #1E56C8;
  --k8-panel: #EFE4C9;
  --k8-capsule-bg: rgba(251, 243, 224, 0.9);
  --k8-capsule-bg-solid: rgba(251, 243, 224, 0.98);
  --k8-hover-wash: rgba(30, 86, 200, 0.12);
  --k8-line: #C8B995;
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--k8-bg);
  color: var(--k8-text);
  font-family: var(--k8-font-body);
  font-size: var(--k8-t16);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--k8-font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.18;
  margin: 0 0 0.6em;
  color: var(--k8-text);
}

h1 { font-size: clamp(32px, 5vw, 60px); font-weight: 900; }
h2 { font-size: clamp(24px, 3vw, 36px); }
h3 { font-size: var(--k8-t20); }
p { margin: 0 0 1.2em; }
p:last-child { margin-bottom: 0; }

a { color: var(--k8-accent); text-decoration: none; }
a:hover { color: var(--k8-cyan); }

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

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

hr { border: 0; border-top: 1px solid var(--k8-border); margin: var(--k8-s32) 0; }

code, kbd, samp, time, .k8-mono { font-family: var(--k8-font-mono); font-variant-numeric: tabular-nums; }

::selection { background: var(--k8-lime); color: var(--k8-ink); }

:where(a, button, [tabindex], input, summary):focus-visible {
  outline: 2px solid var(--k8-lime);
  outline-offset: 3px;
  border-radius: 6px;
}

#main-content { display: block; scroll-margin-top: 96px; }

/* ---------- 3. 布局容器 ---------- */
.k8-wrap {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

.k8-section { padding: var(--k8-s72) 0; position: relative; }
.k8-section--alt {
  background: var(--k8-bg-alt);
  border-top: 1px solid var(--k8-border);
  border-bottom: 1px solid var(--k8-border);
}

.k8-grid { display: grid; gap: var(--k8-s24); align-items: start; }
.k8-grid--7-5 { grid-template-columns: 7fr 5fr; }
.k8-grid--8-4 { grid-template-columns: 8fr 4fr; }
.k8-grid--9-3 { grid-template-columns: 9fr 3fr; }
.k8-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.k8-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.k8-grid--auto { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.k8-grid--bento {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  grid-auto-rows: minmax(120px, auto);
}
.k8-grid--bento > .k8-span-2 { grid-column: span 2; }
.k8-grid--bento > .k8-span-3 { grid-column: span 3; }
.k8-grid--bento > .k8-span-4 { grid-column: span 4; }
.k8-grid--bento > .k8-span-6 { grid-column: span 6; }
.k8-grid--bento > .k8-row-2 { grid-row: span 2; }

/* ---------- 4. 通用文本件 ---------- */
.k8-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--k8-s8);
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--k8-text-dim);
  margin-bottom: var(--k8-s12);
}
.k8-eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--k8-lime);
  flex: none;
}

.k8-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--k8-s12);
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  color: var(--k8-text-dim);
  font-variant-numeric: tabular-nums;
}
.k8-meta__time { color: var(--k8-cyan); }

/* ---------- 5. 状态点 ---------- */
.k8-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--k8-text-dim);
  flex: none;
}
.k8-dot--live {
  background: var(--k8-lime);
  animation: k8-pulse 1.6s ease-out infinite;
}
@keyframes k8-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(182, 255, 60, 0.55); transform: scale(1); }
  70%  { box-shadow: 0 0 0 7px rgba(182, 255, 60, 0); transform: scale(1.12); }
  100% { box-shadow: 0 0 0 0 rgba(182, 255, 60, 0); transform: scale(1); }
}

/* ---------- 6. 标签 ---------- */
.k8-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  line-height: 1;
  padding: 5px 10px;
  border-radius: var(--k8-radius);
  border: 1px solid var(--k8-border);
  color: var(--k8-text-dim);
  white-space: nowrap;
}
.k8-tag--live {
  background: var(--k8-lime);
  border-color: transparent;
  color: var(--k8-ink);
  font-weight: 700;
}
.k8-tag--up { color: var(--k8-orange); border-color: rgba(255, 138, 61, 0.5); }
.k8-tag--down { color: var(--k8-cyan); border-color: rgba(79, 216, 255, 0.45); }
.k8-tag--blue { color: var(--k8-blue); border-color: rgba(46, 123, 255, 0.45); }

/* ---------- 7. 按钮 ---------- */
.k8-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--k8-s8);
  padding: 13px 24px;
  border-radius: var(--k8-radius);
  border: 1px solid transparent;
  background: var(--k8-blue);
  color: #fff;
  font-family: var(--k8-font-display);
  font-size: var(--k8-t16);
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: background 180ms var(--k8-ease), border-color 180ms var(--k8-ease), transform 180ms var(--k8-ease), color 180ms var(--k8-ease);
}
.k8-btn:hover { background: #1F63E0; color: #fff; transform: translateY(-1px); }
.k8-btn--ghost {
  background: transparent;
  border-color: var(--k8-blue);
  color: var(--k8-text);
}
.k8-btn--ghost:hover { background: var(--k8-hover-wash); color: var(--k8-text); }
.k8-btn--accent {
  background: var(--k8-lime);
  color: var(--k8-ink);
  border-color: transparent;
}
.k8-btn--accent:hover { background: #C8FF63; color: var(--k8-ink); }
.k8-btn--sm { padding: 9px 16px; font-size: var(--k8-t14); }

/* ---------- 8. 切角卡片 / Bento ---------- */
.k8-card {
  position: relative;
  background: var(--k8-surface);
  border: 1px solid var(--k8-border);
  padding: var(--k8-s24);
  clip-path: polygon(
    0 0,
    calc(100% - var(--k8-cut)) 0,
    100% var(--k8-cut),
    100% 100%,
    var(--k8-cut) 100%,
    0 calc(100% - var(--k8-cut))
  );
}
.k8-card--cut { --k8-cut: 28px; }
.k8-card--paper {
  background: var(--k8-paper);
  border-color: #C9BB9B;
  color: var(--k8-ink);
  --k8-cut: 14px;
}
.k8-card--paper .k8-card__title { color: var(--k8-ink); }
.k8-card--paper .k8-card__foot,
.k8-card--paper .k8-meta { color: #6A6153; }

.k8-card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--k8-s12);
  margin-bottom: var(--k8-s12);
}
.k8-card__title {
  font-family: var(--k8-font-display);
  font-size: var(--k8-t20);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
}
.k8-card__body { font-size: var(--k8-t16); color: var(--k8-text); }
.k8-card__body p { color: inherit; }
.k8-card__foot {
  margin-top: var(--k8-s16);
  padding-top: var(--k8-s12);
  border-top: 1px solid var(--k8-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--k8-s12);
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  color: var(--k8-text-dim);
}

/* 卡片角落刻度短线 —— 运动轨迹语言 */
.k8-card--cut::after {
  content: "";
  position: absolute;
  top: 6px;
  left: 6px;
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--k8-lime);
  border-left: 2px solid var(--k8-lime);
  opacity: 0.75;
  pointer-events: none;
}

/* ---------- 9. 图片容器 ---------- */
.k8-figure {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--k8-border);
  background-color: var(--k8-panel);
  background-image:
    linear-gradient(var(--k8-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--k8-border) 1px, transparent 1px);
  background-size: 28px 28px;
}
.k8-figure img,
.k8-figure svg {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.k8-figure--wide { aspect-ratio: 21 / 9; }
.k8-figure--square { aspect-ratio: 1 / 1; }
.k8-figure--tall { aspect-ratio: 3 / 4; }
.k8-figure--portrait { aspect-ratio: 4 / 5; }
.k8-figure__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  padding: 10px 14px;
  background: linear-gradient(180deg, transparent, rgba(5, 7, 12, 0.88));
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  color: var(--k8-white);
}

/* ---------- 10. 面包屑 ---------- */
.k8-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--k8-s8);
  margin: 0 0 var(--k8-s24);
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  color: var(--k8-text-dim);
}
.k8-breadcrumb li { display: inline-flex; align-items: center; gap: var(--k8-s8); }
.k8-breadcrumb li:not(:last-child)::after {
  content: "/";
  color: var(--k8-border);
}
.k8-breadcrumb a { color: inherit; }
.k8-breadcrumb a:hover { color: var(--k8-lime); }
.k8-breadcrumb [aria-current="page"] { color: var(--k8-text); }

/* ---------- 11. 正文排版 ---------- */
.k8-prose {
  max-width: 72ch;
  font-size: 17px;
  line-height: 1.75;
}
.k8-prose > * + * { margin-top: 1.2em; }
.k8-prose h2 {
  font-size: clamp(22px, 2.4vw, 30px);
  margin-top: 2em;
  padding-left: 14px;
  border-left: 3px solid var(--k8-blue);
}
.k8-prose h3 { margin-top: 1.6em; font-size: var(--k8-t20); }
.k8-prose ul, .k8-prose ol { padding-left: 1.4em; }
.k8-prose li { list-style: disc; margin-bottom: 0.5em; }
.k8-prose ol li { list-style: decimal; }
.k8-prose a { text-decoration: underline; text-underline-offset: 3px; }
.k8-prose blockquote {
  margin: 1.6em 0;
  padding: var(--k8-s16) var(--k8-s24);
  background: var(--k8-surface);
  border-left: 3px solid var(--k8-lime);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  color: var(--k8-text);
}
.k8-prose code {
  font-family: var(--k8-font-mono);
  font-size: 0.92em;
  background: var(--k8-surface);
  border: 1px solid var(--k8-border);
  padding: 1px 6px;
  border-radius: 4px;
}
.k8-prose table { width: 100%; border-collapse: collapse; font-size: var(--k8-t14); }
.k8-prose th, .k8-prose td {
  border: 1px solid var(--k8-border);
  padding: 10px 12px;
  text-align: left;
}
.k8-prose th { background: var(--k8-surface); font-family: var(--k8-font-mono); font-weight: 600; }

/* 长文锚点目录 */
.k8-anchor {
  position: sticky;
  top: 104px;
  font-size: var(--k8-t14);
  border-left: 1px solid var(--k8-border);
  padding-left: var(--k8-s16);
}
.k8-anchor__title {
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  letter-spacing: 0.12em;
  color: var(--k8-text-dim);
  margin-bottom: var(--k8-s12);
}
.k8-anchor a {
  display: block;
  padding: 5px 0;
  color: var(--k8-text-dim);
  border-left: 2px solid transparent;
  margin-left: -18px;
  padding-left: 16px;
  transition: color 160ms var(--k8-ease), border-color 160ms var(--k8-ease);
}
.k8-anchor a:hover { color: var(--k8-text); }
.k8-anchor a.is-active {
  color: var(--k8-lime);
  border-left-color: var(--k8-lime);
}

/* ---------- 12. 分段切换 ---------- */
.k8-tabs { margin-bottom: var(--k8-s24); }
.k8-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--k8-s8);
  padding: var(--k8-s8);
  background: var(--k8-bg-alt);
  border: 1px solid var(--k8-border);
  border-radius: var(--k8-radius);
}
.k8-tabs__btn {
  padding: 8px 16px;
  border-radius: var(--k8-radius);
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t14);
  color: var(--k8-text-dim);
  border: 1px solid transparent;
  transition: background 160ms var(--k8-ease), color 160ms var(--k8-ease);
}
.k8-tabs__btn:hover { color: var(--k8-text); background: var(--k8-hover-wash); }
.k8-tabs__btn[aria-selected="true"] {
  background: var(--k8-blue);
  color: #fff;
  border-color: transparent;
}
.k8-tabs__panel { padding-top: var(--k8-s16); }
.k8-tabs__panel[hidden] { display: none; }

/* ---------- 13. 显现动效 ---------- */
.k8-js .k8-reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 240ms var(--k8-ease), transform 240ms var(--k8-ease);
  will-change: opacity, transform;
}
.k8-js .k8-reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 14. 头部 ---------- */
.k8-header {
  position: sticky;
  top: 0;
  z-index: 80;
  padding: 12px 0 0;
}

.k8-skip {
  position: absolute;
  left: 16px;
  top: -70px;
  z-index: 120;
  padding: 10px 18px;
  border-radius: var(--k8-radius);
  background: var(--k8-lime);
  color: var(--k8-ink);
  font-weight: 700;
  font-size: var(--k8-t14);
  transition: top 180ms var(--k8-ease);
}
.k8-skip:focus { top: 12px; color: var(--k8-ink); }

.k8-capsule {
  position: relative;
  width: calc(100% - 32px);
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--k8-s16);
  padding: 9px 10px 9px 18px;
  border: 1px solid var(--k8-border);
  border-radius: var(--k8-radius);
  background: var(--k8-capsule-bg);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: padding 220ms var(--k8-ease), background 220ms var(--k8-ease), border-color 220ms var(--k8-ease);
}

.k8-header.is-condensed .k8-capsule {
  padding: 5px 8px 5px 16px;
  background: var(--k8-capsule-bg-solid);
  border-color: rgba(46, 123, 255, 0.4);
}
.k8-header.is-condensed .k8-brand__tick { display: none; }

/* 品牌锁 */
.k8-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
  color: var(--k8-text);
  text-decoration: none;
}
.k8-brand:hover { color: var(--k8-text); }
.k8-brand__mark {
  font-family: var(--k8-font-display);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1;
  color: var(--k8-lime);
}
.k8-brand__meta {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.2;
}
.k8-brand__name {
  font-family: var(--k8-font-display);
  font-size: var(--k8-t12);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--k8-text);
  white-space: nowrap;
}
.k8-brand__tick {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--k8-font-mono);
  font-size: 11px;
  color: var(--k8-lime);
  white-space: nowrap;
}

/* 汉堡按钮 */
.k8-burger {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--k8-border);
  border-radius: var(--k8-radius);
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  color: var(--k8-text);
  margin-left: auto;
}
.k8-burger__box {
  position: relative;
  width: 16px;
  height: 10px;
  display: block;
}
.k8-burger__line,
.k8-burger__line::before,
.k8-burger__line::after {
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--k8-lime);
  border-radius: 2px;
  transition: transform 200ms var(--k8-ease), opacity 160ms var(--k8-ease);
}
.k8-burger__line { top: 4px; }
.k8-burger__line::before { content: ""; top: -5px; }
.k8-burger__line::after { content: ""; top: 5px; }
.k8-header[data-open="true"] .k8-burger__line { background: transparent; }
.k8-header[data-open="true"] .k8-burger__line::before { transform: translateY(5px) rotate(45deg); }
.k8-header[data-open="true"] .k8-burger__line::after { transform: translateY(-5px) rotate(-45deg); }

/* 主导航 */
.k8-nav { flex: 1 1 auto; min-width: 0; }
.k8-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  flex-wrap: nowrap;
}
.k8-nav__link {
  position: relative;
  display: inline-block;
  padding: 8px 14px;
  border-radius: var(--k8-radius);
  font-family: var(--k8-font-display);
  font-size: var(--k8-t14);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--k8-text);
  white-space: nowrap;
  transition: background 160ms var(--k8-ease), color 160ms var(--k8-ease);
}
.k8-nav__link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--k8-lime);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 200ms var(--k8-ease);
}
.k8-nav__link:hover {
  background: var(--k8-hover-wash);
  color: var(--k8-text);
}
.k8-nav__link:hover::after { transform: scaleX(1); }
.k8-nav__link[aria-current="page"] {
  background: var(--k8-blue);
  color: #fff;
}
.k8-nav__link[aria-current="page"]::after { display: none; }

/* 工具区 */
.k8-tools {
  display: flex;
  align-items: center;
  gap: var(--k8-s8);
  margin-left: auto;
  flex: none;
}
.k8-tool {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border: 1px solid var(--k8-border);
  border-radius: var(--k8-radius);
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  color: var(--k8-text-dim);
  transition: color 160ms var(--k8-ease), border-color 160ms var(--k8-ease), background 160ms var(--k8-ease);
}
.k8-tool:hover {
  color: var(--k8-text);
  border-color: var(--k8-blue);
  background: var(--k8-hover-wash);
}
.k8-tool__glyph { color: var(--k8-cyan); font-size: 13px; line-height: 1; }
.k8-tool[aria-pressed="true"] {
  border-color: var(--k8-lime);
  color: var(--k8-lime);
}

.k8-cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border-radius: var(--k8-radius);
  background: var(--k8-lime);
  color: var(--k8-ink);
  font-family: var(--k8-font-display);
  font-size: var(--k8-t14);
  font-weight: 800;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition: background 160ms var(--k8-ease), transform 160ms var(--k8-ease);
}
.k8-cta:hover { background: #C8FF63; color: var(--k8-ink); transform: translateY(-1px); }

/* 阅读进度 */
.k8-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  pointer-events: none;
}
.k8-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--k8-blue), var(--k8-cyan) 55%, var(--k8-lime));
}

/* ---------- 15. 页脚 ---------- */
.k8-footer {
  position: relative;
  margin-top: var(--k8-s72);
  padding: var(--k8-s48) 0 var(--k8-s24);
  background: var(--k8-bg-alt);
  border-top: 1px solid var(--k8-border);
  color: var(--k8-text);
}
.k8-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--k8-blue) 22%, var(--k8-cyan) 52%, var(--k8-lime) 78%, transparent);
  opacity: 0.85;
}

.k8-footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1.4fr;
  gap: var(--k8-s32) var(--k8-s24);
  padding-bottom: var(--k8-s32);
  border-bottom: 1px solid var(--k8-border);
}

.k8-footer__brand { max-width: 320px; }
.k8-footer__logo {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  color: var(--k8-text);
}
.k8-footer__logo:hover { color: var(--k8-text); }
.k8-footer__mark {
  font-family: var(--k8-font-display);
  font-size: var(--k8-t26);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1;
  color: var(--k8-lime);
}
.k8-footer__wordmark {
  font-family: var(--k8-font-display);
  font-size: var(--k8-t16);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.k8-footer__pitch {
  margin: var(--k8-s12) 0 var(--k8-s8);
  font-size: var(--k8-t14);
  color: var(--k8-text-dim);
  line-height: 1.7;
}
.k8-footer__state {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  color: var(--k8-lime);
}

.k8-footer__col { min-width: 0; }
.k8-footer__title {
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--k8-text-dim);
  margin: 0 0 var(--k8-s16);
}
.k8-footer__list { display: flex; flex-direction: column; gap: 10px; }
.k8-footer__list a,
.k8-footer__list span {
  font-size: var(--k8-t14);
  color: var(--k8-text);
  text-decoration: none;
  word-break: break-word;
  transition: color 160ms var(--k8-ease);
}
.k8-footer__list span { color: var(--k8-text-dim); }
.k8-footer__list a:hover { color: var(--k8-lime); }
.k8-footer__note {
  margin-top: var(--k8-s16);
  padding-left: 10px;
  border-left: 2px solid var(--k8-orange);
  font-size: var(--k8-t12);
  line-height: 1.7;
  color: var(--k8-text-dim);
}

.k8-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--k8-s12);
  padding-top: var(--k8-s24);
}
.k8-footer__copy,
.k8-footer__icp {
  margin: 0;
  font-family: var(--k8-font-mono);
  font-size: 13px;
  color: var(--k8-silver);
}
.k8-footer__icp { letter-spacing: 0.04em; }

/* ---------- 16. 响应式 ---------- */
@media (max-width: 1180px) {
  .k8-nav__link { padding: 8px 10px; font-size: 13px; }
  .k8-nav__link::after { left: 10px; right: 10px; }
  .k8-brand__name { font-size: 11px; }
}

@media (max-width: 1024px) {
  .k8-grid--7-5,
  .k8-grid--8-4,
  .k8-grid--9-3,
  .k8-grid--3 { grid-template-columns: 1fr; }
  .k8-grid--bento { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .k8-grid--bento > .k8-span-4,
  .k8-grid--bento > .k8-span-6 { grid-column: span 4; }
  .k8-span-3 { grid-column: span 4; }
  .k8-footer__grid { grid-template-columns: 1fr 1fr 1fr; }
  .k8-footer__brand { grid-column: 1 / -1; max-width: none; }
  .k8-anchor { position: static; }
}

@media (max-width: 960px) {
  .k8-burger { display: inline-flex; }
  .k8-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 10px);
    display: none;
    padding: var(--k8-s12);
    background: var(--k8-bg-alt);
    border: 1px solid var(--k8-border);
    border-radius: 20px;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
  }
  .k8-header[data-open="true"] .k8-nav { display: block; }
  .k8-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }
  .k8-nav__link {
    display: block;
    padding: 12px 16px;
    font-size: var(--k8-t16);
    border-radius: 14px;
  }
  .k8-nav__link::after { display: none; }
  .k8-nav__link:hover { background: var(--k8-hover-wash); }
  .k8-tools { margin-left: auto; }
  .k8-brand__tick { display: none; }
  .k8-section { padding: var(--k8-s48) 0; }
}

@media (max-width: 640px) {
  .k8-wrap { padding: 0 16px; }
  .k8-capsule {
    width: calc(100% - 20px);
    padding: 7px 8px 7px 12px;
    gap: 8px;
  }
  .k8-brand__mark { font-size: 20px; }
  .k8-brand__name { display: none; }
  .k8-tool__text { display: none; }
  .k8-tool { padding: 8px 10px; }
  .k8-cta { padding: 9px 13px; font-size: var(--k8-t12); }
  .k8-burger { padding: 8px 10px; }
  .k8-burger__text { display: none; }
  .k8-grid--2, .k8-grid--auto { grid-template-columns: 1fr; }
  .k8-grid--bento { grid-template-columns: 1fr; }
  .k8-grid--bento > * { grid-column: 1 / -1 !important; grid-row: auto !important; }
  .k8-footer__grid { grid-template-columns: 1fr 1fr; }
  .k8-footer__col--contact { grid-column: 1 / -1; }
  .k8-card { padding: var(--k8-s16); }
  .k8-prose { font-size: var(--k8-t16); }
}

@media (min-width: 768px) {
  .k8-wrap { padding: 0 32px; }
}

/* ---------- 17. 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;
  }
  .k8-dot--live { animation: none; box-shadow: none; }
  .k8-js .k8-reveal { opacity: 1; transform: none; }
  .k8-progress__bar { transition: none; }
}