/* 非凡体育 — 城市夜赛观察站 共享样式 /assets/site.css */

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

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

body {
  margin: 0;
  background: #0b1220;
  color: #f2efe6;
  font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, figure, ul, ol, blockquote {
  margin: 0;
}

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

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

button {
  font: inherit;
  color: inherit;
}

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

:root {
  --ink: #0b1220;
  --ink-2: #111c2e;
  --ink-3: #0e1727;
  --paper: #f2efe6;
  --stone: #8c8f86;
  --slate: #5b6778;
  --cyan: #2ce5d0;
  --orange: #ff7a3d;
  --brick: #a6493f;
  --amber: #d9a441;
  --moss: #6f7f5e;
  --clay: #b86b4b;
  --line: rgba(242, 239, 230, 0.14);
  --line-strong: rgba(242, 239, 230, 0.28);
  --font-display: "Source Han Sans SC Heavy", "Source Han Sans SC", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-body: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --header-h: 64px;
  --gap: clamp(16px, 3vw, 28px);
  --pad: clamp(20px, 5vw, 64px);
  --maxw: 1360px;
}

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

/* ---------- 跳转链接 ---------- */

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--cyan);
  color: #04120f;
  font-weight: 700;
  font-size: 14px;
  border-radius: 2px;
  transform: translateY(-180%);
  transition: transform 0.16s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
}

/* ---------- 头部命令栏 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(11, 18, 32, 0.97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

.readline {
  height: 2px;
  background: rgba(242, 239, 230, 0.08);
  overflow: hidden;
}

.readline__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 62%, var(--orange) 100%);
  transition: transform 0.12s linear;
}

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  width: 100%;
  max-width: var(--maxw);
  min-height: var(--header-h);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 8px 0;
}

.brand__mark {
  position: relative;
  width: 22px;
  height: 22px;
  border: 1px solid var(--cyan);
  border-radius: 1px;
}

.brand__mark::before,
.brand__mark::after {
  content: "";
  position: absolute;
  background: var(--orange);
}

.brand__mark::before {
  left: 50%;
  top: -4px;
  bottom: -4px;
  width: 1px;
  transform: translateX(-50%);
}

.brand__mark::after {
  top: 50%;
  left: -4px;
  right: -4px;
  height: 1px;
  transform: translateY(-50%);
}

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

.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.09em;
}

.brand__tag {
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--stone);
}

.site-header__meta {
  display: none;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--stone);
  white-space: nowrap;
}

.site-header__meta::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(44, 229, 208, 0.18);
}

@media (min-width: 1200px) {
  .site-header__meta {
    display: flex;
  }
}

.cmdnav {
  margin-left: auto;
}

.cmdnav__list {
  display: flex;
  align-items: stretch;
  gap: 2px;
}

.cmdnav__link {
  display: flex;
  align-items: baseline;
  gap: 5px;
  padding: 10px 8px;
  font-size: 13.5px;
  color: rgba(242, 239, 230, 0.78);
  border-bottom: 2px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.cmdnav__index {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  color: var(--slate);
  transition: color 0.16s ease;
}

.cmdnav__link:hover {
  color: var(--paper);
  border-bottom-color: rgba(44, 229, 208, 0.5);
}

.cmdnav__link:hover .cmdnav__index {
  color: var(--cyan);
}

.cmdnav__link[aria-current="page"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.cmdnav__link[aria-current="page"] .cmdnav__index {
  color: var(--orange);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  margin-left: 12px;
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.2;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: transparent;
  color: var(--paper);
  cursor: pointer;
  transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
}

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

.btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: #17100b;
}

.btn--primary:hover {
  background: #ff8f5c;
  border-color: #ff8f5c;
}

.btn--ghost {
  color: rgba(242, 239, 230, 0.86);
}

.btn--ghost:hover {
  color: var(--cyan);
  border-color: rgba(44, 229, 208, 0.6);
}

/* ---------- 移动导航按钮 ---------- */

.navtoggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color 0.16s ease;
}

.navtoggle:hover {
  border-color: rgba(44, 229, 208, 0.6);
}

.navtoggle__bars {
  display: block;
  width: 16px;
}

.navtoggle__bars span {
  display: block;
  height: 1.5px;
  margin: 3px 0;
  background: var(--paper);
  transition: transform 0.16s ease, opacity 0.16s ease;
}

.navtoggle__bars span:nth-child(1) {
  transform-origin: 0 50%;
}

.navtoggle__bars span:nth-child(3) {
  transform-origin: 0 50%;
}

.navtoggle__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--stone);
}

.navtoggle[aria-expanded="true"] .navtoggle__bars span:nth-child(1) {
  transform: translateY(4.5px) rotate(45deg);
}

.navtoggle[aria-expanded="true"] .navtoggle__bars span:nth-child(2) {
  opacity: 0;
}

.navtoggle[aria-expanded="true"] .navtoggle__bars span:nth-child(3) {
  transform: translateY(-4.5px) rotate(-45deg);
}

.navtoggle[aria-expanded="true"] .navtoggle__label {
  color: var(--cyan);
}

/* ---------- 通用容器与网格 ---------- */

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}

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

.col {
  min-width: 0;
}

.col--3 { grid-column: span 3; }
.col--4 { grid-column: span 4; }
.col--5 { grid-column: span 5; }
.col--6 { grid-column: span 6; }
.col--7 { grid-column: span 7; }
.col--8 { grid-column: span 8; }
.col--9 { grid-column: span 9; }
.col--12 { grid-column: span 12; }

.prose {
  max-width: 34em;
  font-size: 16.5px;
  line-height: 1.85;
  color: rgba(242, 239, 230, 0.88);
}

.prose p + p {
  margin-top: 1.1em;
}

.prose h2 {
  margin: 2em 0 0.7em;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
}

.prose h3 {
  margin: 1.7em 0 0.5em;
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

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

.prose ul,
.prose ol {
  margin: 1.1em 0;
  padding-left: 1.2em;
}

.prose li {
  list-style: none;
  position: relative;
  padding-left: 0.2em;
  margin-bottom: 0.5em;
}

.prose li::before {
  content: "";
  position: absolute;
  left: -0.9em;
  top: 0.75em;
  width: 5px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 面包屑 ---------- */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.breadcrumb > * + *::before {
  content: "/";
  margin-right: 8px;
  color: var(--slate);
}

.breadcrumb__link {
  color: var(--stone);
  transition: color 0.16s ease;
}

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

/* ---------- 图片容器基础 ---------- */

.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--ink-3);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.45;
  background-image: linear-gradient(90deg, rgba(44, 229, 208, 0.16) 1px, transparent 1px);
  background-size: 64px 100%;
}

.media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.media-frame__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--paper);
  background: linear-gradient(180deg, rgba(11, 18, 32, 0) 0%, rgba(11, 18, 32, 0.88) 100%);
}

/* ---------- 标签 ---------- */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 1px;
  background: rgba(242, 239, 230, 0.04);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(242, 239, 230, 0.86);
}

.tag--cyan {
  color: var(--cyan);
  border-color: rgba(44, 229, 208, 0.5);
  background: rgba(44, 229, 208, 0.08);
}

.tag--amber {
  color: #f0c878;
  border-color: rgba(217, 164, 65, 0.55);
  background: rgba(217, 164, 65, 0.1);
}

.tag--brick {
  color: #e4a79f;
  border-color: rgba(166, 73, 63, 0.6);
  background: rgba(166, 73, 63, 0.14);
}

/* ---------- 数据短块 ---------- */

.stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.stat__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
}

/* ---------- 章节 ---------- */

.section {
  position: relative;
  padding: clamp(48px, 8vw, 96px) 0;
}

.section__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.section__kicker::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--cyan);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4vw, 44px);
  line-height: 1.2;
  letter-spacing: 0.01em;
}

/* ---------- 目录高亮通用态 ---------- */

[data-toc] a[aria-current="true"] {
  color: var(--cyan);
}

/* ---------- 页脚 ---------- */

.site-footer {
  position: relative;
  margin-top: clamp(64px, 9vw, 120px);
  background: var(--ink-2);
  border-top: 1px solid var(--line-strong);
}

.site-footer::before {
  content: "";
  display: block;
  height: 6px;
  background-image: repeating-linear-gradient(90deg, var(--cyan) 0 1px, transparent 1px 28px);
  opacity: 0.55;
}

.site-footer__inner {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(36px, 6vw, 72px) var(--pad) 28px;
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1.15fr 1.7fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
}

.foot-brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.1em;
  color: var(--paper);
}

.foot-brand__tag {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.foot-brand__summary {
  margin-top: 16px;
  max-width: 26em;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--stone);
}

.foot-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.foot-col__title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--stone);
}

.foot-col__title::after {
  content: "";
  display: block;
  width: 18px;
  height: 1px;
  margin-top: 8px;
  background: var(--cyan);
}

.foot-col__list li + li {
  margin-top: 9px;
}

.foot-col__link {
  font-size: 14px;
  color: rgba(242, 239, 230, 0.8);
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.foot-col__link:hover {
  color: var(--cyan);
  border-bottom-color: rgba(44, 229, 208, 0.55);
}

.foot-contact__line {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: rgba(242, 239, 230, 0.85);
  word-break: break-word;
}

.foot-contact__line--muted {
  font-family: var(--font-body);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--stone);
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.foot-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.foot-legal__link {
  color: rgba(242, 239, 230, 0.72);
  transition: color 0.16s ease;
}

.foot-legal__link:hover {
  color: var(--cyan);
}

.foot-icp {
  color: var(--stone);
}

.foot-copy {
  margin-left: auto;
  color: var(--slate);
}

/* ---------- 平板与移动端 ---------- */

@media (max-width: 1079px) {
  .cmdnav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    margin-left: 0;
    background: var(--ink-2);
    border-bottom: 1px solid var(--line-strong);
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.45);
  }

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

  .cmdnav__list {
    flex-direction: column;
    gap: 0;
    padding: 6px var(--pad) 16px;
  }

  .cmdnav__item + .cmdnav__item {
    border-top: 1px solid var(--line);
  }

  .cmdnav__link {
    padding: 13px 0;
    font-size: 15px;
    border-bottom: 0;
  }

  .cmdnav__link[aria-current="page"] {
    color: var(--cyan);
    box-shadow: inset 2px 0 0 var(--cyan);
    padding-left: 12px;
  }

  .cmdnav__index {
    font-size: 10px;
  }

  .navtoggle {
    display: flex;
    margin-left: auto;
  }

  .site-header__actions {
    margin-left: 0;
  }
}

@media (max-width: 900px) {
  .site-footer__top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .foot-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (max-width: 860px) {
  .grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .col--3 { grid-column: span 6; }
  .col--4 { grid-column: span 6; }
  .col--5 { grid-column: span 6; }
  .col--6 { grid-column: span 6; }
  .col--7 { grid-column: span 6; }
  .col--8 { grid-column: span 6; }
  .col--9 { grid-column: span 6; }
  .col--12 { grid-column: span 6; }

  .prose {
    max-width: none;
    font-size: 15.5px;
  }
}

@media (max-width: 560px) {
  .site-header__inner {
    gap: 10px;
  }

  .site-header__actions .btn--ghost {
    display: none;
  }

  .btn {
    padding: 8px 12px;
    font-size: 13px;
  }

  .brand__tag {
    font-size: 9px;
    letter-spacing: 0.16em;
  }

  .foot-cols {
    grid-template-columns: 1fr;
  }

  .site-footer__base {
    gap: 10px;
  }

  .foot-copy {
    margin-left: 0;
  }
}

@media (max-width: 420px) {
  .navtoggle__label {
    display: none;
  }
}

/* ---------- 降低动效 ---------- */

@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;
  }

  .btn:hover {
    transform: none;
  }
}