/* ==========================================================================
   开心娱乐站 · 共享 Site Kit
   文件：/assets/site.css
   气质：夜间控制台 × 街机厅 × 编辑部索引卡
   ========================================================================== */

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

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

ul, ol { list-style: none; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--kes-header-h) + 20px);
}

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

button { font: inherit; }

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

/* ---------- 2. 设计令牌 ---------- */
:root {
  /* 色阶 */
  --kes-blue: #0B1224;
  --kes-indigo: #18233F;
  --kes-paper: #F4E9D0;
  --kes-ink: #241A16;
  --kes-orange: #FF6A2A;
  --kes-teal: #45E0C4;
  --kes-yellow: #FFC857;
  --kes-magenta: #C93B7C;
  --kes-slate: #8FA1B8;
  --kes-edge: #E7D6B6;

  /* 派生 */
  --kes-text: #F0E7D4;
  --kes-text-dim: var(--kes-slate);
  --kes-line: rgba(231, 214, 182, 0.2);
  --kes-line-strong: rgba(231, 214, 182, 0.42);
  --kes-ink-soft: #4A382F;

  /* 字体 */
  --kes-font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --kes-font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --kes-font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* 尺度 */
  --kes-container: 1240px;
  --kes-gutter: clamp(16px, 4vw, 32px);
  --kes-radius: 3px;
  --kes-header-h: 74px;

  /* 动效 */
  --kes-ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  --kes-t: 150ms;
}

/* ---------- 3. 基础排版 ---------- */
html { background: var(--kes-blue); }

body {
  min-height: 100vh;
  background-color: var(--kes-blue);
  background-image:
    linear-gradient(180deg, rgba(24, 35, 63, 0.92) 0%, rgba(11, 18, 36, 0) 460px),
    repeating-linear-gradient(0deg, rgba(244, 233, 208, 0.026) 0 1px, transparent 1px 3px);
  color: var(--kes-text);
  font-family: var(--kes-font-sans);
  font-size: 17px;
  line-height: 1.75;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--kes-font-sans);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--kes-paper);
  text-wrap: balance;
}

h1 { font-size: clamp(2.3rem, 4.8vw, 4.4rem); }
h2 { font-size: clamp(1.6rem, 2.6vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 1.7vw, 1.5rem); }
h4 { font-size: clamp(1rem, 1.2vw, 1.15rem); }

p { text-wrap: pretty; }

::selection {
  background: var(--kes-orange);
  color: var(--kes-blue);
}

/* ---------- 4. 通用工具类 ---------- */
.kes-container {
  width: 100%;
  max-width: var(--kes-container);
  margin-inline: auto;
  padding-inline: var(--kes-gutter);
}

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

.kes-mono {
  font-family: var(--kes-font-mono);
  font-size: 0.92em;
  letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums;
}

.kes-kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 0 0.35em;
  border: 1px solid var(--kes-line-strong);
  border-bottom-width: 2px;
  border-radius: 3px;
  background: rgba(244, 233, 208, 0.08);
  color: var(--kes-teal);
  font-family: var(--kes-font-mono);
  font-size: 0.85em;
  line-height: 1.6;
  text-align: center;
}

.kes-rule {
  height: 0;
  border: 0;
  border-top: 1px dashed var(--kes-line-strong);
  margin-block: clamp(20px, 3vw, 34px);
}

.kes-link {
  color: var(--kes-teal);
  border-bottom: 1px solid rgba(69, 224, 196, 0.45);
  transition: color var(--kes-t) var(--kes-ease), border-color var(--kes-t) var(--kes-ease);
}

.kes-link:hover {
  color: var(--kes-yellow);
  border-bottom-color: var(--kes-yellow);
}

/* 锁滚动（移动导航打开时由 JS 加到 html） */
.kes-lock { overflow: hidden; }

/* ---------- 5. 按钮 ---------- */
.kes-btn {
  --kes-btn-bg: transparent;
  --kes-btn-fg: var(--kes-paper);
  --kes-btn-bd: var(--kes-line-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid var(--kes-btn-bd);
  border-radius: 2px;
  background: var(--kes-btn-bg);
  color: var(--kes-btn-fg);
  font-family: var(--kes-font-sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.3;
  text-align: center;
  cursor: pointer;
  transition:
    transform var(--kes-t) var(--kes-ease),
    background-color var(--kes-t) var(--kes-ease),
    color var(--kes-t) var(--kes-ease),
    border-color var(--kes-t) var(--kes-ease),
    box-shadow var(--kes-t) var(--kes-ease);
}

.kes-btn--primary {
  --kes-btn-bg: var(--kes-orange);
  --kes-btn-fg: var(--kes-blue);
  --kes-btn-bd: #FF9A61;
  box-shadow: 0 2px 0 #7A2C0C;
}

.kes-btn--primary:hover {
  --kes-btn-bg: #FF8B52;
  transform: translateY(-2px);
  box-shadow: 0 4px 0 #7A2C0C, 0 10px 24px -14px rgba(255, 106, 42, 0.9);
}

.kes-btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 1px 0 #7A2C0C;
}

.kes-btn--ghost:hover {
  --kes-btn-bd: var(--kes-teal);
  --kes-btn-fg: var(--kes-teal);
  transform: translateY(-2px);
}

.kes-btn--quiet {
  padding: 6px 0;
  border-color: transparent;
  border-bottom-color: var(--kes-line-strong);
  border-radius: 0;
}

.kes-btn--quiet:hover {
  --kes-btn-fg: var(--kes-teal);
  --kes-btn-bd: transparent;
  border-bottom-color: var(--kes-teal);
}

.kes-btn--sm { padding: 8px 14px; font-size: 13px; }
.kes-btn--wide { width: 100%; }

/* ---------- 6. 标签与筛选 chips ---------- */
.kes-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border: 1px solid var(--kes-line-strong);
  border-radius: 2px;
  background: rgba(143, 161, 184, 0.08);
  color: var(--kes-text-dim);
  font-family: var(--kes-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.7;
  white-space: nowrap;
}

.kes-tag--live {
  color: var(--kes-teal);
  border-color: rgba(69, 224, 196, 0.5);
  background: rgba(69, 224, 196, 0.1);
}

.kes-tag--star {
  color: var(--kes-yellow);
  border-color: rgba(255, 200, 87, 0.5);
  background: rgba(255, 200, 87, 0.1);
}

.kes-tag--beta {
  color: var(--kes-magenta);
  border-color: rgba(201, 59, 124, 0.55);
  background: rgba(201, 59, 124, 0.12);
}

.kes-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px;
  border: 1px solid var(--kes-line-strong);
  border-radius: 999px;
  background: rgba(24, 35, 63, 0.5);
  color: var(--kes-text);
  font-family: var(--kes-font-sans);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
  transition:
    background-color var(--kes-t) var(--kes-ease),
    color var(--kes-t) var(--kes-ease),
    border-color var(--kes-t) var(--kes-ease);
}

.kes-chip:hover {
  color: var(--kes-teal);
  border-color: var(--kes-teal);
}

.kes-chip[aria-pressed="true"] {
  background: var(--kes-teal);
  border-color: var(--kes-teal);
  color: var(--kes-blue);
}

/* ---------- 7. 头部 ---------- */
.kes-skip {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 2px;
  background: var(--kes-teal);
  color: var(--kes-blue);
  font-size: 14px;
  font-weight: 700;
  transform: translateY(-180%);
  transition: transform var(--kes-t) var(--kes-ease);
}

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

.kes-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(180deg, #0E1730 0%, var(--kes-blue) 100%);
  border-bottom: 1px solid var(--kes-line);
  box-shadow:
    0 1px 0 rgba(69, 224, 196, 0.16),
    0 20px 38px -26px rgba(0, 0, 0, 0.95);
}

.kes-header__inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: clamp(12px, 2vw, 26px);
  width: 100%;
  max-width: var(--kes-container);
  min-height: var(--kes-header-h);
  margin-inline: auto;
  padding-inline: var(--kes-gutter);
}

/* 品牌 */
.kes-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 2px;
  border-radius: 2px;
}

.kes-brand__mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  background: linear-gradient(140deg, var(--kes-orange) 0%, #FF9257 100%);
  color: var(--kes-blue);
  font-size: 19px;
  font-weight: 900;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
  box-shadow: 0 0 18px -4px rgba(255, 106, 42, 0.75);
  transition: box-shadow var(--kes-t) var(--kes-ease);
}

.kes-header__brand:hover .kes-brand__mark {
  box-shadow: 0 0 24px -2px rgba(255, 106, 42, 0.95);
}

.kes-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.kes-brand__name {
  color: var(--kes-paper);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: 0.01em;
}

.kes-brand__note {
  margin-top: 2px;
  color: var(--kes-slate);
  font-family: var(--kes-font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
}

/* 地址栏光轨 */
.kes-rail {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  max-width: 380px;
  min-width: 0;
  margin-inline: auto;
  padding: 6px 12px;
  border: 1px solid var(--kes-line);
  border-radius: 999px;
  background: rgba(24, 35, 63, 0.55);
}

.kes-rail__key {
  flex: 0 0 auto;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--kes-teal);
  color: var(--kes-blue);
  font-family: var(--kes-font-mono);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.5;
}

.kes-rail__track {
  position: relative;
  flex: 1 1 auto;
  min-width: 40px;
  height: 3px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(231, 214, 182, 0.16);
}

.kes-rail__fill {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--kes-orange) 0%, var(--kes-yellow) 100%);
  transition: width 90ms linear;
}

.kes-rail__cursor {
  flex: 0 0 auto;
  width: 1px;
  height: 14px;
  background: var(--kes-teal);
  box-shadow: 0 0 8px var(--kes-teal);
  animation: kes-blink 1.6s steps(1) infinite;
}

.kes-rail__hint {
  flex: 0 0 auto;
  color: var(--kes-slate);
  font-family: var(--kes-font-mono);
  font-size: 11px;
  white-space: nowrap;
}

@keyframes kes-blink {
  0%, 55% { opacity: 1; }
  56%, 100% { opacity: 0.12; }
}

/* 移动导航按钮 */
.kes-nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--kes-orange);
  border-radius: 2px;
  background: rgba(255, 106, 42, 0.12);
  color: var(--kes-orange);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition:
    background-color var(--kes-t) var(--kes-ease),
    color var(--kes-t) var(--kes-ease);
}

.kes-nav-toggle__box {
  display: grid;
  gap: 3px;
  width: 16px;
}

.kes-nav-toggle__box span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--kes-t) var(--kes-ease), opacity var(--kes-t) var(--kes-ease);
}

.kes-nav-toggle__label { line-height: 1; }

.kes-header[data-open] .kes-nav-toggle {
  background: var(--kes-orange);
  color: var(--kes-blue);
}

.kes-header[data-open] .kes-nav-toggle__box span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.kes-header[data-open] .kes-nav-toggle__box span:nth-child(2) { opacity: 0; }
.kes-header[data-open] .kes-nav-toggle__box span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* 主导航（桌面） */
.kes-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  min-width: 0;
}

.kes-nav__head,
.kes-nav__foot,
.kes-nav__cta { display: none; }

.kes-nav__list {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 2px;
}

.kes-nav__item { min-width: 0; }

.kes-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 10px 10px 12px;
  border-radius: 2px;
  color: var(--kes-text);
  font-size: 14.5px;
  font-weight: 600;
  white-space: nowrap;
  transition: color var(--kes-t) var(--kes-ease), background-color var(--kes-t) var(--kes-ease);
}

.kes-nav__link::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 6px;
  height: 2px;
  background: var(--kes-teal);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--kes-t) var(--kes-ease), background-color var(--kes-t) var(--kes-ease);
}

.kes-nav__link:hover { color: var(--kes-teal); }
.kes-nav__link:hover::after,
.kes-nav__link:focus-visible::after { transform: scaleX(1); }

.kes-nav__link[aria-current="page"] { color: var(--kes-orange); }
.kes-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--kes-orange);
}

.kes-nav__label { line-height: 1.2; }

.kes-nav__index {
  color: var(--kes-slate);
  font-family: var(--kes-font-mono);
  font-size: 9.5px;
  letter-spacing: 0.04em;
}

.kes-nav__link:hover .kes-nav__index { color: var(--kes-teal); }
.kes-nav__link[aria-current="page"] .kes-nav__index { color: var(--kes-orange); }

/* 头部 CTA */
.kes-header__cta { white-space: nowrap; }

/* ---------- 8. 页脚 ---------- */
.kes-footer {
  position: relative;
  margin-top: clamp(48px, 7vw, 96px);
  background: linear-gradient(180deg, #101B36 0%, #080E1D 100%);
  border-top: 1px solid var(--kes-line-strong);
  color: var(--kes-text);
}

.kes-footer__strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 24px;
  padding: 10px var(--kes-gutter);
  border-bottom: 1px solid var(--kes-line);
  background: rgba(255, 106, 42, 0.06);
  color: var(--kes-slate);
  font-family: var(--kes-font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.kes-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 0.72fr)) minmax(0, 1.35fr);
  gap: clamp(24px, 3.2vw, 44px);
  padding-block: clamp(34px, 4.4vw, 58px);
}

.kes-footer__brandmark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--kes-paper);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.01em;
  line-height: 1.2;
}

.kes-footer__brandmark::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--kes-orange);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.kes-footer__summary {
  max-width: 32ch;
  margin-top: 12px;
  color: var(--kes-text-dim);
  font-size: 14.5px;
  line-height: 1.75;
}

.kes-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

.kes-footer__col { min-width: 0; }

.kes-footer__heading {
  margin-bottom: 14px;
  color: var(--kes-orange);
  font-family: var(--kes-font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  line-height: 1.6;
}

.kes-footer__list {
  display: grid;
  gap: 9px;
}

.kes-footer__link {
  position: relative;
  color: var(--kes-text);
  font-size: 14.5px;
  transition: color var(--kes-t) var(--kes-ease), padding-left var(--kes-t) var(--kes-ease);
}

.kes-footer__link::before {
  content: "";
  position: absolute;
  top: 50%;
  left: -12px;
  width: 5px;
  height: 1px;
  background: var(--kes-teal);
  opacity: 0;
  transition: opacity var(--kes-t) var(--kes-ease), left var(--kes-t) var(--kes-ease);
}

.kes-footer__link:hover { color: var(--kes-teal); }
.kes-footer__link:hover::before { opacity: 1; left: -9px; }

.kes-footer__contact {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 18px;
  border: 1px solid var(--kes-line);
  border-radius: var(--kes-radius);
  background: rgba(24, 35, 63, 0.55);
  box-shadow: inset 0 1px 0 rgba(244, 233, 208, 0.06);
}

.kes-footer__row {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.kes-footer__label {
  color: var(--kes-slate);
  font-family: var(--kes-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  line-height: 1.6;
}

.kes-footer__value {
  margin: 0;
  color: var(--kes-paper);
  font-size: 13.5px;
  line-height: 1.65;
  word-break: break-word;
}

.kes-footer__value--mono {
  font-family: var(--kes-font-mono);
  font-size: 12.5px;
  letter-spacing: 0.01em;
  word-break: break-all;
}

.kes-footer__legal {
  border-top: 1px solid var(--kes-line);
  background: rgba(11, 18, 36, 0.65);
}

.kes-footer__legal-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 16px;
}

.kes-footer__copy,
.kes-footer__icp {
  color: var(--kes-slate);
  font-family: var(--kes-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.6;
}

.kes-footer__stamp {
  margin-left: auto;
  padding: 2px 10px;
  border: 1px solid var(--kes-orange);
  border-radius: 2px;
  color: var(--kes-orange);
  font-family: var(--kes-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  transform: rotate(-2deg);
}

/* ---------- 9. 面包屑 ---------- */
.kes-breadcrumb { margin-block: 22px 6px; }

.kes-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--kes-slate);
  font-family: var(--kes-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
}

.kes-breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }

.kes-breadcrumb__link {
  color: var(--kes-slate);
  border-bottom: 1px solid transparent;
  transition: color var(--kes-t) var(--kes-ease), border-color var(--kes-t) var(--kes-ease);
}

.kes-breadcrumb__link:hover {
  color: var(--kes-teal);
  border-bottom-color: var(--kes-teal);
}

.kes-breadcrumb__sep {
  color: rgba(143, 161, 184, 0.55);
}

.kes-breadcrumb__item[aria-current="page"] { color: var(--kes-paper); }

/* ---------- 10. 章节与网格 ---------- */
.kes-section { padding-block: clamp(32px, 4.6vw, 62px); }

.kes-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  margin-bottom: clamp(18px, 2.6vw, 30px);
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--kes-line);
}

.kes-section__num {
  color: var(--kes-orange);
  font-family: var(--kes-font-serif);
  font-size: 13.5px;
  letter-spacing: 0.16em;
}

.kes-section__title { flex: 1 1 auto; min-width: 0; }

.kes-section__meta {
  margin-left: auto;
  color: var(--kes-slate);
  font-family: var(--kes-font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.kes-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 24px);
}

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

/* ---------- 11. 纸卡 ---------- */
.kes-paper {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--kes-edge);
  border-radius: var(--kes-radius);
  background: var(--kes-paper);
  color: var(--kes-ink);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    0 3px 0 #D9C6A2,
    0 24px 42px -26px rgba(0, 0, 0, 0.9);
  transition: transform var(--kes-t) var(--kes-ease), box-shadow var(--kes-t) var(--kes-ease);
}

.kes-paper h2,
.kes-paper h3,
.kes-paper h4 { color: var(--kes-ink); }

.kes-paper p { color: var(--kes-ink-soft); }

.kes-paper--fold::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 24px;
  height: 24px;
  background: #DCCAA6;
  clip-path: polygon(0 0, 100% 100%, 0 100%);
  box-shadow: inset -1px -1px 0 rgba(36, 26, 22, 0.18);
}

.kes-paper__head {
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 1px dashed rgba(36, 26, 22, 0.22);
}

.kes-paper__kicker {
  display: block;
  margin-bottom: 6px;
  color: #B33A12;
  font-family: var(--kes-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
}

.kes-paper__title { font-size: clamp(1.1rem, 1.6vw, 1.35rem); }

.kes-paper__body { font-size: 15px; line-height: 1.75; }

.kes-paper__foot {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed rgba(36, 26, 22, 0.22);
  font-family: var(--kes-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: #6B564A;
}

.kes-paper .kes-link {
  color: #A93611;
  border-bottom-color: rgba(169, 54, 17, 0.4);
}

.kes-paper .kes-link:hover {
  color: var(--kes-magenta);
  border-bottom-color: var(--kes-magenta);
}

/* ---------- 12. 图片容器基础规则（页面阶段放 SVG / img） ---------- */
.kes-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--kes-line-strong);
  border-radius: var(--kes-radius);
  background:
    radial-gradient(120% 100% at 12% 0%, rgba(255, 106, 42, 0.26) 0%, transparent 55%),
    radial-gradient(90% 90% at 88% 100%, rgba(69, 224, 196, 0.2) 0%, transparent 60%),
    linear-gradient(160deg, #18233F 0%, #0B1224 100%);
  isolation: isolate;
}

.kes-media::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(244, 233, 208, 0.05) 0 1px, transparent 1px 4px);
}

.kes-media img,
.kes-media svg,
.kes-media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.kes-media--wide { aspect-ratio: 21 / 9; }
.kes-media--square { aspect-ratio: 1 / 1; }
.kes-media--tall { aspect-ratio: 4 / 5; }

.kes-media--paper {
  border-color: var(--kes-edge);
  background: linear-gradient(160deg, #F4E9D0 0%, #E7D6B6 100%);
}

.kes-media__caption {
  position: absolute;
  left: 10px;
  bottom: 10px;
  z-index: 3;
  padding: 3px 8px;
  border: 1px solid var(--kes-line-strong);
  border-radius: 2px;
  background: rgba(11, 18, 36, 0.82);
  color: var(--kes-paper);
  font-family: var(--kes-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  line-height: 1.6;
}

.kes-media__badge {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 3;
}

/* ---------- 13. 正文与旁注 ---------- */
.kes-prose { max-width: 68ch; }

.kes-prose > p {
  max-width: 66ch;
  margin-bottom: 1.1em;
  color: var(--kes-text);
}

.kes-prose > p:last-child { margin-bottom: 0; }

.kes-prose h2,
.kes-prose h3 { margin-block: 1.6em 0.6em; }

.kes-prose ul,
.kes-prose ol {
  margin-block: 0 1.1em;
  padding-left: 1.2em;
  list-style: none;
}

.kes-prose li {
  position: relative;
  margin-bottom: 0.5em;
  padding-left: 0.2em;
}

.kes-prose li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: -0.95em;
  width: 6px;
  height: 6px;
  background: var(--kes-orange);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.kes-note {
  padding: 10px 0 10px 16px;
  border-left: 3px solid var(--kes-yellow);
  color: var(--kes-text-dim);
  font-family: var(--kes-font-serif);
  font-size: 14.5px;
  line-height: 1.8;
}

.kes-note p { color: inherit; }

.kes-note--warn { border-left-color: var(--kes-magenta); color: #E7C3D4; }

.kes-paper .kes-note {
  color: #5A463B;
  border-left-color: var(--kes-magenta);
}

/* ---------- 14. 显现 ---------- */
.kes-js [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 220ms var(--kes-ease), transform 220ms var(--kes-ease);
}

.kes-js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 15. 焦点可见 ---------- */
:where(a, button, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--kes-teal);
  outline-offset: 3px;
  border-radius: 2px;
}

.kes-paper :where(a, button, summary, [tabindex]):focus-visible {
  outline-color: var(--kes-magenta);
}

.kes-header .kes-nav__link:focus-visible { outline-offset: 0; }

/* ---------- 16. 响应式 ---------- */
@media (max-width: 1180px) {
  .kes-rail { display: none; }
  .kes-header__inner { grid-template-columns: auto minmax(0, 1fr) auto; }
  .kes-nav { justify-content: flex-end; }
}

@media (max-width: 1080px) {
  :root { --kes-header-h: 66px; }

  .kes-header__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
  }

  .kes-header__cta { display: none; }

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

  .kes-nav {
    position: fixed;
    top: var(--kes-header-h);
    left: 0;
    right: 0;
    z-index: 55;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: calc(100vh - var(--kes-header-h));
    overflow-y: auto;
    padding: 16px var(--kes-gutter) 26px;
    border-bottom: 1px solid var(--kes-line-strong);
    background: linear-gradient(180deg, #101B36 0%, #0B1224 72%);
    box-shadow: 0 28px 60px -20px rgba(0, 0, 0, 0.95);
  }

  .kes-nav[data-open] {
    display: flex;
    animation: kes-drop 170ms var(--kes-ease) both;
  }

  .kes-nav__head {
    display: block;
    margin-bottom: 10px;
    color: var(--kes-slate);
    font-family: var(--kes-font-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
  }

  .kes-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .kes-nav__item { border-top: 1px solid var(--kes-line); }

  .kes-nav__link {
    width: 100%;
    justify-content: space-between;
    align-items: center;
    padding: 14px 4px;
    border-radius: 0;
    font-size: 16px;
  }

  .kes-nav__link::after {
    left: 4px;
    right: 4px;
    bottom: 7px;
  }

  .kes-nav__label { order: 1; }
  .kes-nav__index { order: 2; font-size: 10.5px; }

  .kes-nav__foot {
    display: block;
    margin-top: 16px;
    color: var(--kes-slate);
    font-family: var(--kes-font-mono);
    font-size: 11.5px;
    letter-spacing: 0.08em;
  }

  .kes-nav__cta {
    display: block;
    margin-top: 14px;
  }

  .kes-nav__cta .kes-btn { width: 100%; }

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

  .kes-footer__brand { grid-column: span 2; }
  .kes-footer__contact { grid-column: span 2; }
}

@keyframes kes-drop {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 900px) {
  .kes-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .kes-grid > [class*="kes-span-"] { grid-column: span 6; }
  .kes-span-3 { grid-column: span 6; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }

  .kes-brand__mark { width: 34px; height: 34px; font-size: 17px; }
  .kes-brand__name { font-size: 17px; }
  .kes-brand__note { font-size: 9px; letter-spacing: 0.12em; }

  .kes-nav-toggle { padding: 8px 10px; font-size: 12px; }

  .kes-footer__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .kes-footer__brand,
  .kes-footer__contact { grid-column: auto; }

  .kes-footer__stamp { margin-left: 0; }

  .kes-footer__legal-inner { justify-content: flex-start; }

  .kes-section__meta { margin-left: 0; }
}

/* ---------- 17. 减少动态 ---------- */
@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;
  }

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

  .kes-btn:hover,
  .kes-btn--primary:hover,
  .kes-btn--ghost:hover { transform: none; }

  .kes-rail__cursor { animation: none; opacity: 1; }
}

/* ---------- 18. 打印 ---------- */
@media print {
  .kes-header,
  .kes-footer__strip,
  .kes-skip { display: none !important; }

  body {
    background: #FFFFFF;
    color: #000000;
  }

  .kes-paper {
    background: #FFFFFF;
    color: #000000;
    box-shadow: none;
    border-color: #999999;
  }
}