/* ==========================================================================
   最新赛场 · 全站共享样式 /assets/site.css
   设计关键词：转播控制台、杂志报头、珠宝色分区、大圆角胶囊、微交互
   ========================================================================== */

/* ---------- 01 重置与基础 ---------- */

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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: rgba(0, 255, 135, 0.15);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  letter-spacing: 0.02em;
  background-color: var(--c-space);
  color: var(--c-silver);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

main {
  display: block;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: 900;
  line-height: 1.25;
  color: var(--c-white);
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  margin: 0;
  padding-left: 1.25em;
}

a {
  color: var(--c-lime);
  text-decoration: none;
}

a:hover {
  color: var(--c-lime);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

:focus-visible {
  outline: 3px solid var(--c-lime);
  outline-offset: 3px;
}

::selection {
  background: var(--c-lime);
  color: var(--c-space);
}

/* ---------- 02 设计变量 ---------- */

:root {
  --c-space: #0B1B3D;
  --c-lime: #00FF87;
  --c-silver: #C0C0C8;
  --c-orange: #FF7A00;
  --c-teal: #14424C;
  --c-wine: #6D1A3C;
  --c-indigo: #3B2A6D;
  --c-paper: #F2F4F8;
  --c-white: #FFFFFF;
  --c-ink: #1A1A1A;

  --font-heading: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", Menlo, Consolas, "Liberation Mono", monospace;

  --container-w: 1200px;
  --gutter: 24px;
  --radius-card: 20px;
  --radius-pill: 999px;
  --header-masthead-h: 80px;
  --nav-row-h: 60px;
  --shadow-lift: 0 12px 32px rgba(0, 0, 0, 0.28);
  --shadow-glow: 0 0 22px rgba(0, 255, 135, 0.28);
  --ease: 0.25s ease;
}

/* ---------- 03 版式工具 ---------- */

.mono {
  font-family: var(--font-mono);
}

.kicker {
  display: inline-block;
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--c-lime);
  border: 1px solid rgba(0, 255, 135, 0.3);
  border-radius: var(--radius-pill);
  background: rgba(0, 255, 135, 0.06);
}

/* ---------- 04 布局原语 ---------- */

.container {
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.content-main {
  max-width: 820px;
  margin-inline: auto;
  background: var(--c-paper);
  color: var(--c-ink);
  border-radius: var(--radius-card);
  padding: 40px;
}

.content-main h1,
.content-main h2,
.content-main h3,
.content-main h4,
.content-main h5 {
  color: var(--c-ink);
}

.content-main a {
  color: var(--c-space);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.content-main a:hover {
  color: var(--c-teal);
}

.section-head {
  display: grid;
  gap: 10px;
  margin-bottom: 44px;
}

.section-index {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(0, 255, 135, 0.65);
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-lime);
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  color: var(--c-white);
  letter-spacing: 0.02em;
}

.section-lead {
  max-width: 640px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-silver);
}

.section-head--paper .section-title {
  color: var(--c-ink);
}

.section-head--paper .section-lead {
  color: var(--c-ink);
}

.grid-col-2,
.grid-col-3,
.grid-adv {
  display: grid;
  gap: 24px;
}

.grid-col-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-col-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-adv {
  grid-template-columns: 2fr 1fr;
}

/* ---------- 05 按钮与标签 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.2;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--ease), border-color var(--ease), color var(--ease), box-shadow var(--ease);
}

.btn--lime {
  background: var(--c-lime);
  color: var(--c-space);
  box-shadow: 0 4px 16px rgba(0, 255, 135, 0.2);
}

.btn--lime:hover,
.btn--lime:focus-visible {
  background: #5cffb0;
  color: var(--c-space);
  box-shadow: var(--shadow-glow);
}

.btn--outline {
  border-color: var(--c-lime);
  color: var(--c-lime);
  background: transparent;
}

.btn--outline:hover,
.btn--outline:focus-visible {
  background: var(--c-lime);
  color: var(--c-space);
  box-shadow: var(--shadow-glow);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: var(--radius-pill);
  background: rgba(192, 192, 200, 0.12);
  color: var(--c-silver);
}

.badge--hot {
  background: rgba(255, 122, 0, 0.14);
  color: var(--c-orange);
}

.badge--new {
  background: rgba(0, 255, 135, 0.12);
  color: var(--c-lime);
}

/* ---------- 06 卡片与面板 ---------- */

.card {
  border-radius: var(--radius-card);
  background: var(--c-teal);
  padding: 28px;
  border: 1px solid rgba(192, 192, 200, 0.12);
  transition: transform var(--ease), box-shadow var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.card--dark {
  background: var(--c-space);
  border-color: rgba(192, 192, 200, 0.16);
}

.card--paper {
  background: var(--c-paper);
  color: var(--c-ink);
}

.card--paper h1,
.card--paper h2,
.card--paper h3,
.card--paper h4 {
  color: var(--c-ink);
}

.panel {
  border-radius: var(--radius-card);
  background: rgba(11, 27, 61, 0.55);
  border: 1px solid rgba(192, 192, 200, 0.18);
  padding: 8px 24px;
}

.panel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(192, 192, 200, 0.12);
}

.panel-row:last-child {
  border-bottom: 0;
}

.data {
  display: grid;
  gap: 2px;
}

.data-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-silver);
  opacity: 0.8;
}

.data-value {
  font-family: var(--font-mono);
  font-size: 1.375rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-lime);
}

/* ---------- 07 面包屑 ---------- */

.breadcrumb {
  padding: 16px 0;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  font-size: 0.875rem;
  color: var(--c-silver);
}

.breadcrumb-item + .breadcrumb-item {
  margin-left: 8px;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--c-silver);
  opacity: 0.4;
}

.breadcrumb-item a {
  color: var(--c-lime);
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.breadcrumb-item[aria-current="page"] {
  color: var(--c-white);
  font-weight: 700;
}

/* ---------- 08 图片容器 ---------- */

.img-frame {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-indigo), var(--c-teal) 75%);
  aspect-ratio: 16 / 10;
}

.img-frame--wide {
  aspect-ratio: 16 / 7;
}

.img-frame--tall {
  aspect-ratio: 4 / 5;
}

.img-frame img,
.img-frame-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-placeholder {
  display: grid;
  place-items: center;
  min-height: 180px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}

.img-frame > .img-placeholder {
  position: absolute;
  inset: 0;
  min-height: 0;
}

/* ---------- 09 装饰 ---------- */

.tilt-band {
  height: 24px;
  border-radius: 4px;
  background: repeating-linear-gradient(
    -45deg,
    var(--c-wine) 0,
    var(--c-wine) 10px,
    transparent 10px,
    transparent 20px
  );
  opacity: 0.8;
}

.speed-lines {
  position: relative;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent 0,
    transparent 10px,
    rgba(192, 192, 200, 0.06) 10px,
    rgba(192, 192, 200, 0.06) 11px
  );
}

/* ---------- 10 页头 ---------- */

.site-header {
  background: var(--c-space);
  color: var(--c-white);
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 300;
  padding: 12px 20px;
  background: var(--c-lime);
  color: var(--c-space);
  font-weight: 700;
  font-size: 0.875rem;
  border-radius: 0 0 14px 14px;
  transition: top var(--ease);
}

.skip-link:focus {
  top: 0;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--c-lime), var(--c-orange));
  box-shadow: 0 0 14px rgba(0, 255, 135, 0.5);
  z-index: 400;
  pointer-events: none;
}

.masthead {
  position: relative;
  border-bottom: 1px solid rgba(192, 192, 200, 0.1);
}

.masthead::after {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--c-lime) 0%, var(--c-teal) 35%, var(--c-wine) 75%, transparent 100%);
}

.masthead-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: var(--header-masthead-h);
  padding-top: 14px;
  padding-bottom: 14px;
}

.nav-toggle {
  display: none;
  position: absolute;
  left: var(--gutter);
  top: 50%;
  transform: translateY(-50%);
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid rgba(192, 192, 200, 0.25);
  border-radius: 12px;
  cursor: pointer;
  transition: border-color var(--ease), background-color var(--ease);
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: var(--c-lime);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--c-white);
  transition: transform var(--ease), opacity var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-emblem {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--c-lime), var(--c-teal));
  color: var(--c-space);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  box-shadow: 0 0 22px rgba(0, 255, 135, 0.35);
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--c-white);
  white-space: nowrap;
}

.masthead-status {
  position: absolute;
  right: var(--gutter);
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--c-silver);
  white-space: nowrap;
}

.status-dot {
  display: inline-block;
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-lime);
  box-shadow: 0 0 10px rgba(0, 255, 135, 0.65);
}

.nav-row {
  position: relative;
  border-top: 1px solid rgba(192, 192, 200, 0.1);
  background: rgba(11, 27, 61, 0.55);
}

.nav-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: var(--nav-row-h);
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item a {
  display: block;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--c-silver);
  text-decoration: none;
  transition: color var(--ease), background-color var(--ease);
}

.nav-item a:hover,
.nav-item a:focus-visible {
  color: var(--c-white);
  background: rgba(0, 255, 135, 0.08);
}

.nav-item a[aria-current="page"] {
  color: var(--c-space);
  background: var(--c-lime);
  font-weight: 700;
}

.btn-app {
  position: absolute;
  right: var(--gutter);
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  border: 1.5px solid var(--c-lime);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--c-lime);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background-color var(--ease), color var(--ease), box-shadow var(--ease);
}

.btn-app:hover,
.btn-app:focus-visible {
  background: var(--c-lime);
  color: var(--c-space);
  box-shadow: var(--shadow-glow);
}

.btn-app-text {
  line-height: 1.2;
}

.btn-app-arrow {
  display: inline-block;
  font-size: 1.3em;
  line-height: 1;
  transition: transform var(--ease);
}

.btn-app:hover .btn-app-arrow,
.btn-app:focus-visible .btn-app-arrow {
  transform: translateX(3px);
}

/* ---------- 11 页脚 ---------- */

.site-footer {
  position: relative;
  background: var(--c-space);
  color: var(--c-silver);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-lime), var(--c-teal) 40%, var(--c-wine));
  opacity: 0.7;
}

.footer-inner {
  padding-top: 60px;
  padding-bottom: 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.6fr 0.6fr 1.3fr;
  gap: 48px;
}

.footer-brand-col,
.footer-col {
  display: grid;
  align-content: start;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.footer-brand-name {
  font-size: 1.375rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--c-white);
}

.footer-trust {
  margin-top: 20px;
  margin-bottom: 0;
  max-width: 380px;
  padding-left: 16px;
  border-left: 2px solid var(--c-lime);
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--c-silver);
}

.footer-col-title {
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(192, 192, 200, 0.15);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-white);
}

.footer-links {
  display: grid;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  color: var(--c-silver);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  transition: color var(--ease), padding-left var(--ease);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--c-lime);
  padding-left: 4px;
}

.footer-contact {
  gap: 16px;
}

.footer-contact-item {
  display: grid;
  gap: 2px;
}

.footer-contact-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-silver);
  opacity: 0.7;
}

.footer-contact-value {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--c-white);
}

.footer-bottom {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid rgba(192, 192, 200, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-silver);
}

.footer-copyright,
.footer-icp {
  margin: 0;
}

/* ---------- 12 响应式 ---------- */

@media (max-width: 1023px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-inner {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    min-height: 0;
    padding: 0;
  }

  .main-nav {
    display: none;
    width: 100%;
    padding: 8px 0 12px;
  }

  .main-nav[data-open] {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-item a {
    padding: 14px 16px;
    border-radius: 12px;
    font-size: 1rem;
  }

  .btn-app {
    display: none;
    position: static;
    transform: none;
    align-self: stretch;
    justify-content: center;
    margin: 0 var(--gutter) 20px;
    padding: 12px 20px;
    font-size: 0.9375rem;
  }

  .main-nav[data-open] ~ .btn-app {
    display: flex;
  }

  .grid-col-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-adv {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .footer-brand-col {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767px) {
  .grid-col-2,
  .grid-col-3 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .content-main {
    padding: 28px 20px;
  }
}

@media (max-width: 575px) {
  .masthead-inner {
    min-height: 68px;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .masthead-status {
    display: none;
  }

  .brand-emblem {
    width: 40px;
    height: 40px;
    border-radius: 12px;
  }

  .brand-name {
    font-size: 1.25rem;
    letter-spacing: 0.08em;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ---------- 13 无障碍与减少动效 ---------- */

@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;
  }

  .card:hover {
    transform: none;
    box-shadow: none;
  }
}