/* ========== kaiyun竞猜 共享样式 ========== */
/* 文件位置：/assets/site.css */

/* 1. 重置与基调 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: "Noto Sans SC", "Noto Sans CJK SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 1rem;
  line-height: 1.8;
  background: #0a3d2a;
  color: #f5f0e6;
  -webkit-font-smoothing: antialiased;
}

main {
  flex: 1 0 auto;
  display: block;
  outline: none;
}

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

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

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 3px dashed #00e5cc;
  outline-offset: 3px;
}

/* 2. 设计变量 */
:root {
  --clr-bg: #0a3d2a;
  --clr-gold: #d4af37;
  --clr-alert: #8b0000;
  --clr-paper: #f5f0e6;
  --clr-ink: #1a1a1a;
  --clr-gray: #2d2d2d;
  --clr-cyan: #00e5cc;
  --clr-violet: #7b2ff7;
  --clr-line: #e0d6c8;
  --font-display: "Noto Serif SC", "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-body: "Noto Sans SC", "Noto Sans CJK SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --space-gutter: clamp(1rem, 3vw, 2.5rem);
  --max-width: 1240px;
}

/* 3. 基础排版 */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
}

p {
  max-width: 60ch;
}

/* 4. 正文容器 */
.content-wrap {
  width: min(100%, var(--max-width));
  margin-inline: auto;
  padding-inline: var(--space-gutter);
}

/* 5. 跳到主要内容 */
.skip-link {
  position: fixed;
  inset-block-start: -100%;
  inset-inline-start: 1rem;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--clr-gold);
  color: var(--clr-ink);
  font-weight: 700;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
  transition: inset-block-start 0.2s ease;
}

.skip-link:focus {
  inset-block-start: 1rem;
}

/* 6. 站点头部 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--clr-bg);
  border-block-end: 2px solid rgba(212, 175, 55, 0.5);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
  padding-inline: var(--space-gutter);
}

.site-header__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex: 1;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.site-brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--clr-gold);
  color: var(--clr-ink);
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
  flex: 0 0 auto;
}

.site-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-brand__name {
  display: block;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--clr-paper);
}

.site-brand__sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--clr-gold);
}

.site-header__badge {
  display: none;
}

/* 导航开关 */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 9px 11px;
  border: 2px solid var(--clr-gold);
  background: rgba(212, 175, 55, 0.08);
}

.nav-toggle__bar {
  width: 18px;
  height: 2px;
  background: var(--clr-gold);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle__label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
  color: var(--clr-gold);
  line-height: 1;
}

/* 站点导航 */
.site-nav {
  display: none;
}

.site-nav__list {
  counter-reset: nav-index;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.site-nav__item {
  counter-increment: nav-index;
}

.site-nav__link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.85rem;
  border-inline-start: 3px solid transparent;
  color: rgba(245, 240, 230, 0.85);
  font-weight: 500;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.site-nav__link::before {
  content: counter(nav-index, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.02em;
  color: rgba(212, 175, 55, 0.75);
}

.site-nav__link:hover {
  border-inline-start-color: var(--clr-cyan);
  background: rgba(0, 229, 204, 0.08);
  color: var(--clr-paper);
}

.site-nav__link[aria-current="page"] {
  border-inline-start-color: var(--clr-gold);
  background: rgba(212, 175, 55, 0.1);
  color: var(--clr-gold);
  font-weight: 700;
}

.site-nav__link[aria-current="page"]::before {
  color: var(--clr-gold);
}

.site-nav__actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-block-start: 1.5rem;
}

.site-nav__actions .btn {
  width: 100%;
}

/* 7. 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.6rem 1rem;
  border: 2px solid var(--clr-gold);
  border-radius: 0;
  background: transparent;
  color: var(--clr-gold);
  font-family: var(--font-body);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  box-shadow: none;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn--gold {
  background: var(--clr-gold);
  color: var(--clr-ink);
  box-shadow: 0 5px 0 #6b5214;
}

.btn--gold:hover {
  background: #e6c453;
  transform: translateY(1px);
  box-shadow: 0 3px 0 #6b5214;
}

.btn--ghost {
  background: transparent;
}

.btn--ghost:hover {
  background: rgba(212, 175, 55, 0.14);
}

/* 8. 站点页脚 */
.site-footer {
  margin-block-start: 4rem;
  background: var(--clr-bg);
  color: var(--clr-paper);
  border-block-start: 4px solid var(--clr-gold);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 3rem var(--space-gutter) 2rem;
}

.site-footer__brand {
  background: var(--clr-paper);
  color: var(--clr-ink);
  padding: 1.5rem;
  border: 2px solid rgba(212, 175, 55, 0.4);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.35);
}

.site-footer__mark {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-block-end: 1rem;
  background: var(--clr-gold);
  color: var(--clr-ink);
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.25);
}

.site-footer__name {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--clr-ink);
}

.site-footer__sub {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--clr-alert);
}

.site-footer__blurb {
  margin-block-start: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: #3a3a3a;
}

.site-footer__nav {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.site-footer__contact {
  max-width: 100%;
}

.site-footer__heading {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-block-end: 1rem;
  font-size: 1.1rem;
  color: var(--clr-gold);
}

.site-footer__heading::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 1.2em;
  background: var(--clr-gold);
}

.site-footer__link {
  display: block;
  padding: 0.28rem 0;
  color: rgba(245, 240, 230, 0.85);
  font-size: 0.92rem;
  transition: color 0.2s ease, padding-inline-start 0.2s ease;
}

.site-footer__link:hover {
  color: var(--clr-gold);
  padding-inline-start: 0.35rem;
}

.site-footer__line {
  margin-block: 0.3rem;
  font-size: 0.9rem;
  color: rgba(245, 240, 230, 0.8);
  max-width: 100%;
}

.site-footer__link--inline {
  color: var(--clr-cyan);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  word-break: break-all;
}

.site-footer__link--inline:hover {
  text-decoration: underline;
}

.site-footer__bottom {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 1.5rem var(--space-gutter) 2rem;
  border-block-start: 1px solid rgba(212, 175, 55, 0.3);
}

.site-footer__keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block-end: 1.25rem;
}

.site-footer__keyword {
  padding: 0.3rem 0.7rem;
  border: 1px solid rgba(212, 175, 55, 0.55);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--clr-gold);
  transition: background 0.2s ease, color 0.2s ease;
}

.site-footer__keyword:hover {
  background: var(--clr-gold);
  color: var(--clr-ink);
}

.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(245, 240, 230, 0.75);
}

.site-footer__copy {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.site-footer__meta-link {
  color: var(--clr-gold);
}

.site-footer__meta-link:hover {
  text-decoration: underline;
}

.site-footer__icp {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: rgba(245, 240, 230, 0.5);
}

.site-footer__statement {
  margin-block-start: 1rem;
  font-size: 0.78rem;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.5);
  max-width: 100%;
}

/* 9. 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-block: 1rem 1.5rem;
  font-size: 0.875rem;
}

.breadcrumb__link {
  color: var(--clr-gold);
  transition: color 0.2s ease;
}

.breadcrumb__link:hover {
  color: var(--clr-cyan);
}

.breadcrumb__sep {
  color: rgba(245, 240, 230, 0.45);
}

.breadcrumb__current {
  color: rgba(245, 240, 230, 0.8);
}

/* 10. 网格与资料卡 */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--clr-paper);
  color: var(--clr-ink);
  padding: 1.25rem;
  border: 2px solid var(--clr-ink);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.35);
}

.card p {
  color: inherit;
}

/* 11. 图片容器 */
.figure {
  margin-block: 1.5rem;
}

.figure__media {
  aspect-ratio: 16 / 9;
  width: 100%;
  background: var(--clr-gray);
  border: 2px solid rgba(212, 175, 55, 0.4);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

.figure__caption {
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(245, 240, 230, 0.6);
}

/* 12. 编号章节体系 */
.chapter {
  position: relative;
  padding-block: 2.5rem 1rem;
}

.chapter__index {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 7.5rem);
  font-weight: 900;
  line-height: 0.9;
  color: var(--clr-gold);
}

.chapter__title {
  margin-block-start: 0.25rem;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

/* 13. 滚动显现 */
[data-reveal] {
  opacity: 1;
  transform: none;
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

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

/* 14. 响应式：平板 */
@media (min-width: 768px) and (max-width: 991.98px) {
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
  }

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

/* 15. 响应式：桌面端侧边轨道 */
@media (min-width: 992px) {
  body {
    margin-inline-start: 300px;
  }

  .site-header {
    position: fixed;
    inset: 0 auto 0 0;
    width: 300px;
    border-block-end: none;
    border-inline-end: 2px solid rgba(212, 175, 55, 0.5);
  }

  .site-header__inner {
    height: 100%;
    min-height: 0;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: 1.5rem 1.4rem;
    gap: 1rem;
  }

  .site-header__top {
    flex: 0 0 auto;
    width: 100%;
  }

  .site-header__badge {
    display: inline-flex;
    align-self: flex-start;
    padding: 0.3rem 0.6rem;
    background: var(--clr-cyan);
    color: var(--clr-ink);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
  }

  .site-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
  }

  .site-nav__actions {
    margin-top: auto;
    padding-block-start: 1.5rem;
  }

  .nav-toggle {
    display: none;
  }

  .site-footer__inner {
    grid-template-columns: 1.5fr 1fr 1.3fr;
  }

  .site-footer__brand {
    grid-column: auto;
  }
}

/* 16. 响应式：移动端抽屉 */
@media (max-width: 991.98px) {
  .site-nav {
    display: none;
  }

  .site-header[data-open] .site-nav {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0 auto 0 0;
    width: min(82vw, 320px);
    z-index: 95;
    padding: 1.75rem 1.25rem 1.25rem;
    background: var(--clr-bg);
    border-inline-end: 3px solid var(--clr-gold);
    box-shadow: 12px 0 30px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
  }

  .site-header[data-open] .site-nav__actions {
    margin-top: auto;
  }
}

/* 17. 降低动效 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html.js [data-reveal] {
    opacity: 0;
    transform: none;
    transition: opacity 0.3s ease;
    transition-duration: 0.3s !important;
    transition-delay: 0ms !important;
  }

  html.js [data-reveal].is-visible {
    opacity: 1;
  }
}