/* ============================================================
   艾弗森游艺 · 共享样式表 /assets/site.css
   墨绿夜空 · 电光青 · 琥珀仪表灯 / 非对称编辑部骨架
   ============================================================ */

/* ---------- 01 变量 ---------- */
:root {
  /* 色彩 */
  --ink: #0B3D2E;
  --ink-deep: #062A20;
  --ink-mid: #14523E;
  --panel: #1C2321;
  --paper: #F5F1E8;
  --cyan: #00E5FF;
  --cyan-mist: #7DEBFF;
  --amber: #FFB300;
  --amber-light: #FFD466;
  --muted: #A8BDB4;
  --warn: #FF6B5A;

  --paper-08: rgba(245, 241, 232, 0.08);
  --paper-14: rgba(245, 241, 232, 0.14);
  --paper-64: rgba(245, 241, 232, 0.66);
  --ink-soft: rgba(11, 61, 46, 0.72);
  --cyan-08: rgba(0, 229, 255, 0.08);
  --cyan-24: rgba(0, 229, 255, 0.24);

  /* 字体 */
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-display: var(--font-sans);
  --font-body: var(--font-sans);

  /* 字号 10 级 */
  --fs-12: 12px;
  --fs-14: 14px;
  --fs-16: 16px;
  --fs-18: 18px;
  --fs-22: 22px;
  --fs-28: 28px;
  --fs-36: 36px;
  --fs-52: 52px;
  --fs-72: 72px;
  --fs-88: 88px;

  /* 8px 栅格 */
  --sp-1: 8px;
  --sp-2: 16px;
  --sp-3: 24px;
  --sp-4: 32px;
  --sp-5: 48px;
  --sp-6: 64px;
  --sp-7: 96px;
  --sp-8: 128px;
  --sp-9: 160px;

  /* 形状 */
  --radius: 4px;
  --radius-pill: 999px;
  --shadow-hard: 8px 8px 0 rgba(4, 20, 15, 0.55);
  --shadow-float: 0 28px 64px -28px rgba(0, 0, 0, 0.8);

  --maxw: 1240px;
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* ---------- 02 Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: 96px;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: var(--fs-16);
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, picture, video, canvas, svg { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; }
a { color: var(--cyan); text-decoration-thickness: 1px; text-underline-offset: 3px; }

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

::selection { background: var(--amber); color: #231700; }

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

/* ---------- 03 排版基元 ---------- */
.mono { font-family: var(--font-mono); letter-spacing: 0.04em; }
.serif { font-family: var(--font-serif); font-weight: 600; line-height: 1.35; }
.lede {
  font-size: var(--fs-18);
  line-height: 1.7;
  color: var(--paper-64);
  max-width: 38em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  margin: 0 0 var(--sp-2);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--amber);
  flex: 0 0 auto;
}

.rule {
  height: 2px;
  border: 0;
  margin: var(--sp-4) 0;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 46%, var(--amber) 46%, var(--amber) 100%);
}

/* ---------- 04 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 40px);
}

.section { padding-block: clamp(48px, 8vw, 96px); }
.section--tight { padding-block: clamp(32px, 5vw, 56px); }
.section--loose { padding-block: clamp(64px, 12vw, 160px); }
.section--deep { background: var(--ink-deep); }
.section--panel { background: var(--panel); }
.section--light { background: var(--paper); color: var(--ink); }
.section--light .eyebrow { color: var(--ink-mid); }
.section--light .lede { color: var(--ink-soft); }
.section--light a { color: var(--ink); text-decoration-color: var(--amber); }

.slant-top { clip-path: polygon(0 3.5%, 100% 0, 100% 100%, 0 100%); }
.slant-bottom { clip-path: polygon(0 0, 100% 0, 100% 96.5%, 0 100%); }
.slant-top.section--loose { padding-block-start: clamp(72px, 13vw, 176px); }

/* 非对称编辑部网格：62% 正文 / 26% 窄栏 / 12% 空气 */
.editorial {
  display: grid;
  grid-template-columns: minmax(0, 62%) minmax(0, 26%);
  justify-content: space-between;
  row-gap: var(--sp-5);
  align-items: start;
}
.editorial__main { min-width: 0; }
.editorial__aside { min-width: 0; }

.split { display: grid; gap: var(--sp-5); }

.grid { display: grid; gap: clamp(16px, 2.5vw, 32px); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* ---------- 05 页头 ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  transform: translateY(-220%);
  padding: 10px 18px;
  background: var(--amber);
  color: #231700;
  font-family: var(--font-sans);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-hard);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 130;
  pointer-events: none;
}
.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan-mist) 55%, var(--amber) 100%);
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 16px clamp(12px, 3vw, 32px);
  background: transparent;
  transition: padding 0.35s var(--ease);
}
.site-header[data-scrolled] { padding-block: 8px; }

.site-header__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 28px);
  padding: 9px 12px 9px 18px;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  background: rgba(11, 61, 46, 0.42);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: background-color 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.site-header[data-scrolled] .site-header__inner {
  background: var(--panel);
  border-color: var(--ink-mid);
  box-shadow: 0 20px 44px -22px rgba(0, 0, 0, 0.9);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: var(--sp-1);
  flex: 0 0 auto;
  color: var(--paper);
  text-decoration: none;
}
.brand__mark {
  align-self: center;
  padding: 2px 6px;
  border: 2px solid var(--cyan);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.3;
  letter-spacing: 0.14em;
  text-transform: lowercase;
  color: var(--cyan);
}
.brand__name {
  font-family: var(--font-display);
  font-size: var(--fs-16);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.brand__sub {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--muted);
}

.site-nav { flex: 1 1 auto; min-width: 0; }
.site-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
}
.site-nav__item { flex: 0 0 auto; }
.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: var(--fs-14);
  letter-spacing: 0.04em;
  line-height: 1.4;
  white-space: nowrap;
  color: var(--paper);
  text-decoration: none;
  border-radius: var(--radius-pill);
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 3px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s var(--ease);
}
.site-nav__link:hover { color: var(--cyan-mist); background: var(--cyan-08); }
.site-nav__link:hover::after { transform: scaleX(1); }
.site-nav__link[aria-current="page"] { color: var(--paper); }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  flex: 0 0 auto;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--sp-1);
  padding: 9px 14px;
  background: transparent;
  color: var(--paper);
  border: 2px solid var(--paper-14);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.nav-toggle:hover { border-color: var(--cyan); color: var(--cyan); }
.nav-toggle__icon {
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
  width: 18px;
  height: 12px;
}
.nav-toggle__icon span {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }
.nav-toggle__label { line-height: 1; }

/* ---------- 06 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-1);
  padding: 14px 24px;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: var(--fs-14);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease),
              color 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.btn--sm { padding: 10px 16px; font-size: var(--fs-12); letter-spacing: 0.08em; }

.btn--primary {
  background: var(--cyan);
  color: #04231B;
  border-color: var(--cyan);
  box-shadow: 4px 4px 0 var(--cyan-24);
}
.btn--primary:hover {
  background: var(--cyan-mist);
  border-color: var(--cyan-mist);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--cyan-24);
}

.btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: var(--paper-14);
}
.btn--ghost:hover {
  color: var(--amber-light);
  border-color: var(--amber);
  transform: translate(-2px, -2px);
}

.btn--amber {
  background: var(--amber);
  color: #231700;
  border-color: var(--amber);
  box-shadow: 4px 4px 0 rgba(255, 179, 0, 0.22);
}
.btn--amber:hover {
  background: var(--amber-light);
  border-color: var(--amber-light);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(255, 179, 0, 0.26);
}

/* ---------- 07 内页骨架 ---------- */
.breadcrumb {
  padding-block: var(--sp-2);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--muted);
}
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-1);
}
.breadcrumb__item { display: inline-flex; align-items: center; gap: var(--sp-1); }
.breadcrumb__item:not(:first-child)::before {
  content: "/";
  color: var(--ink-mid);
}
.breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
.breadcrumb__link:hover { color: var(--cyan); }
.breadcrumb__current { color: var(--paper); }

.page-head { padding-block: clamp(48px, 9vw, 112px) clamp(32px, 5vw, 56px); }
.page-head__title {
  margin: 0 0 var(--sp-3);
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.page-head__lede {
  max-width: 42em;
  margin: 0;
  font-size: var(--fs-18);
  line-height: 1.7;
  color: var(--paper-64);
}

/* ---------- 08 卡片与仪表 ---------- */
.card {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  background: var(--ink-mid);
  border: 2px solid var(--ink-mid);
  border-radius: var(--radius);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hard);
}
.card--panel { background: var(--panel); border-color: #2A3330; }
.card--tilt-a { transform: rotate(-2deg); }
.card--tilt-b { transform: rotate(2deg); }
.card--tilt-a:hover,
.card--tilt-b:hover { transform: translateY(-4px) rotate(0deg); }

.card__title {
  margin: 0 0 var(--sp-2);
  font-family: var(--font-serif);
  font-size: var(--fs-22);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.01em;
}
.card__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--muted);
}

.stat { display: grid; gap: 4px; }
.stat__value {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 52px);
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--amber);
}
.stat__label {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 2px solid var(--ink-mid);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- 09 图片容器基础 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 2px solid var(--ink-mid);
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--ink-deep) 0%, var(--ink-mid) 58%, #0F4436 100%);
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, rgba(0, 229, 255, 0.1) 0 1px, transparent 1px 24px);
}
.media__img,
.media > img,
.media > picture {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }
.media__caption {
  margin-top: var(--sp-1);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 10 页脚 ---------- */
.site-footer {
  position: relative;
  padding: clamp(48px, 7vw, 88px) 0 var(--sp-4);
  background: var(--ink-deep);
  color: var(--paper);
  border-top: 2px solid var(--ink-mid);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 38%, var(--amber) 38%, var(--amber) 100%);
}

.site-footer__top {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 40px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.4fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
}

.site-footer__brand { min-width: 0; }
.site-footer__wordmark {
  font-family: var(--font-display);
  font-size: var(--fs-28);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.site-footer__latin {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--muted);
}
.site-footer__sig {
  margin-top: var(--sp-2);
  max-width: 26em;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--muted);
}
.site-footer__cta { margin-top: var(--sp-3); }

.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-3);
}
.footer-col { min-width: 0; }
.footer-col__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}
.footer-col__list { display: grid; gap: 10px; }
.footer-col__link {
  display: inline-block;
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.footer-col__link:hover { color: var(--cyan); border-bottom-color: var(--cyan); }

.site-footer__meta {
  max-width: var(--maxw);
  margin: clamp(40px, 6vw, 72px) auto 0;
  padding: var(--sp-3) clamp(20px, 4vw, 40px) 0;
  border-top: 1px solid var(--paper-14);
  display: grid;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.02em;
  color: var(--muted);
}
.footer-line { margin: 0; line-height: 1.7; word-break: break-word; }
.footer-line--dim { color: rgba(168, 189, 180, 0.7); }

/* ---------- 11 滚动显现 ---------- */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
    transition-delay: var(--reveal-delay, 0ms);
  }
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 12 响应式 ---------- */
@media (min-width: 960px) {
  .split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }
}

@media (max-width: 960px) {
  :root { --maxw: 100%; }

  .site-header { padding: 10px clamp(10px, 3vw, 16px); }
  .site-header__inner {
    flex-wrap: wrap;
    padding: 9px 12px;
    border-radius: 20px;
    row-gap: 0;
  }
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .header-actions__utility { display: none; }

  .site-nav {
    order: 3;
    display: none;
    flex: 1 0 100%;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--paper-14);
  }
  .site-nav[data-open] { display: block; }
  .site-nav__list {
    justify-content: flex-start;
    gap: var(--sp-1);
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .site-nav__list::-webkit-scrollbar { display: none; }
  .site-nav__link {
    padding: 8px 14px;
    font-size: var(--fs-14);
    border: 2px solid var(--paper-14);
    border-radius: var(--radius-pill);
  }
  .site-nav__link::after { display: none; }
  .site-nav__link[aria-current="page"] {
    color: var(--cyan);
    border-color: var(--cyan);
    background: var(--cyan-08);
  }

  .editorial {
    grid-template-columns: minmax(0, 1fr);
    row-gap: var(--sp-4);
  }
  .site-footer__top { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 560px) {
  .brand__sub { display: none; }
  .nav-toggle__label { display: none; }
  .brand__name { font-size: var(--fs-14); }
  .site-footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer__wordmark { font-size: var(--fs-22); }
  .page-head__title { font-size: clamp(32px, 9vw, 44px); }
  .lede { font-size: var(--fs-16); }
  .card--tilt-a { transform: rotate(-1deg); }
  .card--tilt-b { transform: rotate(1deg); }
}

/* ---------- 13 动效降级 ---------- */
@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;
  }
  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
  .card:hover,
  .card--tilt-a:hover,
  .card--tilt-b:hover,
  .btn:hover,
  .btn--primary:hover,
  .btn--ghost:hover,
  .btn--amber:hover {
    transform: none !important;
  }
  .site-nav__link::after { transition: none; }
  .scroll-progress__bar { transition: none; }
}