/* ==========================================
   宝威站 · 全站共享样式
   保存路径: /assets/site.css
   ========================================== */

/* ---------- 1. Reset & CSS Variables ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* 色彩系统 */
  --color-primary: #0A1F44;
  --color-accent: #39FF14;
  --color-accent-alt: #FF6B00;
  --color-bg-light: #F5F5F7;
  --color-text-dark: #1A1A1A;
  --color-text-muted: #6E6E73;
  --color-border: #C7C7CC;
  --color-data-bg: #E8F0FE;
  --color-up: #34C759;
  --color-down: #FF3B30;
  --color-overlay: rgba(0, 0, 0, 0.3);

  /* 字体 */
  --font-title: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
  --font-body: 'Roboto Mono', 'Courier New', monospace;

  /* 布局尺寸 */
  --container-max: 1400px;
  --container-pad: 24px;
  --topbar-height: 52px;
  --navbar-height: 64px;
  --header-border: 3px;

  /* 转场 */
  --transition-fast: 0.18s ease;
  --transition-slow: 0.32s ease;

  /* 栅格 */
  --col-gap: 24px;
}

/* ---------- 2. 基础排版 ---------- */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-text-dark);
  background: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  font-weight: 400;
  line-height: 1.15;
  color: var(--color-text-dark);
}

p {
  margin-bottom: 1em;
}

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

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

ul, ol {
  list-style: none;
}

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

dd {
  margin: 0;
}

::selection {
  background: var(--color-accent);
  color: var(--color-primary);
}

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

[id] {
  scroll-margin-top: 140px;
}

#main-content:focus {
  outline: none;
}

#main-content:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

/* ---------- 3. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 9999;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  background: var(--color-accent);
  color: var(--color-primary);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: 0 0 4px 4px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  transition: top var(--transition-fast);
}

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

.skip-link:focus-visible {
  outline: 3px solid var(--color-accent-alt);
  outline-offset: 2px;
}

/* ---------- 4. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-primary);
  color: #ffffff;
  font-family: var(--font-body);
  border-bottom: var(--header-border) solid rgba(57, 255, 20, 0.32);
}

.site-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(57, 255, 20, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 20, 0.025) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

/* 上信息条 */
.site-topbar {
  position: relative;
  background: rgba(8, 24, 52, 0.98);
  border-bottom: 1px solid rgba(57, 255, 20, 0.18);
}

.site-topbar::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    rgba(57, 255, 20, 0.3) 0,
    rgba(57, 255, 20, 0.3) 1px,
    transparent 1px,
    transparent 12px
  );
  opacity: 0.35;
  pointer-events: none;
}

.site-topbar__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
  z-index: 1;
}

.site-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 14px;
  flex-shrink: 0;
}

.site-brand__mark {
  font-family: var(--font-title);
  font-size: 24px;
  font-style: italic;
  letter-spacing: 0.06em;
  color: #ffffff;
  line-height: 1;
  position: relative;
}

.site-brand__mark::after {
  content: '';
  position: absolute;
  bottom: 1px;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent);
  transform: skewX(-24deg);
}

.site-brand__tag {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  white-space: nowrap;
}

.site-topbar__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 12px;
  border: 1px solid rgba(57, 255, 20, 0.45);
  border-radius: 2px;
  background: rgba(57, 255, 20, 0.07);
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
}

.live-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px rgba(57, 255, 20, 0.7);
  animation: livePulse 2s ease-in-out infinite;
}

@keyframes livePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.75); }
}

.site-topbar__coverage {
  color: rgba(255, 255, 255, 0.45);
  white-space: nowrap;
}

/* 下层导航 */
.site-navbar {
  position: relative;
  border-top: 1px solid rgba(57, 255, 20, 0.08);
  background: rgba(10, 31, 68, 0.97);
}

.site-navbar__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.site-nav {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 4px;
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 0 18px;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.72);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.site-nav__link::before {
  content: '';
  position: absolute;
  bottom: 14px;
  left: 18px;
  right: 18px;
  height: 3px;
  background: var(--color-accent);
  transform: translateY(4px) skewX(-30deg) scaleX(0);
  transform-origin: left center;
  opacity: 0;
  transition: transform var(--transition-slow), opacity var(--transition-fast);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--color-accent);
}

.site-nav__link:hover::before,
.site-nav__link:focus-visible::before {
  transform: translateY(0) skewX(-30deg) scaleX(1);
  opacity: 1;
}

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

.site-nav__link[aria-current="page"]::before {
  transform: translateY(0) skewX(-30deg) scaleX(1);
  opacity: 1;
}

.site-nav__link--cta {
  margin-left: 14px;
  padding: 0 20px;
  height: 40px;
  color: #ffffff;
  background: var(--color-accent-alt);
  border-radius: 2px;
  font-weight: 700;
  box-shadow: 0 2px 12px rgba(255, 107, 0, 0.3);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

.site-nav__link--cta::before {
  display: none;
}

.site-nav__link--cta:hover,
.site-nav__link--cta:focus-visible {
  color: #ffffff;
  background: #e05f00;
  box-shadow: 0 4px 18px rgba(255, 107, 0, 0.45);
}

/* 滚动进度线 */
.scroll-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: var(--header-border);
  background: linear-gradient(90deg, var(--color-accent) 40%, var(--color-accent-alt) 100%);
  z-index: 30;
  pointer-events: none;
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.6);
}

/* 移动端开关按钮 */
.nav-toggle {
  display: none;
}

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle__bar {
  display: block;
  width: 16px;
  height: 2px;
  background: var(--color-accent);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle__label {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: #ffffff;
}

/* ---------- 5. 页脚 ---------- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.72);
  font-family: var(--font-body);
  position: relative;
  margin-top: 80px;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, rgba(57, 255, 20, 0.9) 0%, rgba(57, 255, 20, 0.9) 35%, rgba(255, 107, 0, 0.8) 100%);
  z-index: 1;
}

.site-footer::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 0;
  width: 100%;
  height: 12px;
  background: linear-gradient(135deg, transparent 0%, transparent 88%, rgba(57, 255, 20, 0.12) 88%, rgba(57, 255, 20, 0.12) 100%);
  background-size: 24px 24px;
  pointer-events: none;
}

.site-footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 56px var(--container-pad) 40px;
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: 56px;
}

.footer-lead__brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
}

.footer-lead__mark {
  font-family: var(--font-title);
  font-size: 30px;
  font-style: italic;
  color: #ffffff;
  letter-spacing: 0.04em;
  line-height: 1;
}

.footer-lead__tag {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.14em;
}

.footer-lead__statement {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.62);
  margin-bottom: 28px;
  max-width: 38em;
}

.footer-stats {
  display: flex;
  gap: 20px;
}

.footer-stats__item {
  padding: 14px 16px;
  background: rgba(57, 255, 20, 0.06);
  border-left: 2px solid var(--color-accent);
  min-width: 90px;
}

.footer-stats__num {
  font-family: var(--font-title);
  font-style: italic;
  font-size: 32px;
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: 0.02em;
  text-shadow: 0 0 14px rgba(57, 255, 20, 0.35);
}

.footer-stats__label {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.48);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-index {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-index__group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-index__label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  text-transform: uppercase;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(57, 255, 20, 0.2);
  margin-bottom: 6px;
}

.footer-index__link {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  padding: 3px 0;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-index__link:hover,
.footer-index__link:focus-visible {
  color: var(--color-accent);
  padding-left: 6px;
}

.footer-index__text {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
  word-break: break-all;
}

.footer-index__text--addr {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
}

.site-footer__bottom {
  border-top: 1px solid rgba(57, 255, 20, 0.14);
  background: rgba(0, 0, 0, 0.25);
}

.site-footer__bottom-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px var(--container-pad);
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.04em;
}

.footer-bottom__divider {
  color: rgba(57, 255, 20, 0.3);
}

/* 返回顶部 */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 900;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  background: var(--color-primary);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.1em;
  border: 1px solid rgba(57, 255, 20, 0.4);
  border-radius: 2px;
  cursor: pointer;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-slow), transform var(--transition-slow), visibility var(--transition-slow), background var(--transition-fast), color var(--transition-fast);
}

.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover,
.back-top:focus-visible {
  background: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
}

.back-top__arrow {
  font-size: 16px;
  line-height: 1;
}

/* ---------- 6. 共享基础组件 ---------- */
.site-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.site-main {
  min-height: 60vh;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-decoration: none;
  border-radius: 2px;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-primary);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: #2ee010;
  box-shadow: 0 4px 20px rgba(57, 255, 20, 0.3);
}

.btn--accent {
  background: var(--color-accent-alt);
  color: #ffffff;
}

.btn--accent:hover,
.btn--accent:focus-visible {
  background: #e05f00;
  box-shadow: 0 4px 18px rgba(255, 107, 0, 0.35);
}

.btn--ghost {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid rgba(57, 255, 20, 0.5);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: rgba(57, 255, 20, 0.08);
}

.site-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 20px 0;
  font-size: 13px;
  font-family: var(--font-body);
  color: var(--color-text-muted);
}

.site-breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.site-breadcrumb__link {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.site-breadcrumb__link:hover,
.site-breadcrumb__link:focus-visible {
  color: var(--color-primary);
}

.site-breadcrumb__sep {
  color: var(--color-accent-alt);
  font-size: 12px;
}

.site-breadcrumb__current {
  color: var(--color-text-dark);
  font-weight: 700;
}

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

.site-grid--split {
  grid-template-columns: 5fr 7fr;
}

.site-grid--stack {
  grid-template-columns: 1fr;
}

.section-title {
  font-family: var(--font-title);
  font-size: 36px;
  font-style: italic;
  line-height: 1.1;
  color: var(--color-primary);
  margin: 40px 0 16px;
}

.eyebrow {
  display: block;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-alt);
  margin-bottom: 8px;
}

.site-media {
  position: relative;
  overflow: hidden;
  background: var(--color-primary);
  aspect-ratio: 16 / 9;
  border-radius: 2px;
}

.site-media--portrait {
  aspect-ratio: 4 / 5;
}

.site-media--panorama {
  aspect-ratio: 21 / 9;
}

.site-media__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0A1F44 0%, #16386e 100%);
  color: rgba(255, 255, 255, 0.35);
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-media__placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(57, 255, 20, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 20, 0.06) 1px, transparent 1px);
  background-size: 20px 20px;
}

.site-media__placeholder::after {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  bottom: 12px;
  border: 1px solid rgba(57, 255, 20, 0.25);
  pointer-events: none;
}

/* ---------- 7. 响应式 ---------- */
@media (min-width: 1200px) {
  .site-navbar__inner {
    justify-content: center;
  }
}

@media (min-width: 768px) and (max-width: 1199px) {
  .site-topbar__coverage {
    display: none;
  }

  .site-nav__link {
    padding: 0 12px;
    font-size: 13px;
  }

  .site-nav__link--cta {
    margin-left: 8px;
    padding: 0 16px;
    height: 36px;
    font-size: 13px;
  }
}

@media (max-width: 767px) {
  /* 头部 */
  .site-header {
    border-bottom-width: 2px;
  }

  .site-topbar__inner {
    height: 50px;
    padding: 0 16px;
  }

  .site-brand__mark {
    font-size: 20px;
  }

  .site-brand__tag {
    font-size: 11px;
    letter-spacing: 0.08em;
  }

  .site-topbar__coverage {
    display: none;
  }

  .live-badge {
    padding: 3px 8px;
    font-size: 10px;
  }

  .live-badge__dot {
    width: 5px;
    height: 5px;
  }

  .site-navbar__inner {
    height: 56px;
    padding: 0 16px;
    justify-content: space-between;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    height: 40px;
    padding: 0 14px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 2px;
    color: #ffffff;
  }

  .nav-toggle:hover {
    background: rgba(57, 255, 20, 0.1);
    border-color: rgba(57, 255, 20, 0.4);
  }

  .nav-toggle:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
  }

  .nav-toggle--active .nav-toggle__bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .nav-toggle--active .nav-toggle__bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle--active .nav-toggle__bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    height: auto;
    padding: 8px 0 16px;
    background: rgba(10, 31, 68, 0.98);
    border-top: 1px solid rgba(57, 255, 20, 0.12);
    border-bottom: 2px solid rgba(57, 255, 20, 0.35);
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.45);
  }

  .site-nav[data-open] {
    display: flex;
    animation: navFadeIn 0.25s ease;
  }

  @keyframes navFadeIn {
    from {
      opacity: 0;
      transform: translateY(-6px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .site-nav__link {
    height: auto;
    padding: 14px 24px;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    border-left: 3px solid transparent;
  }

  .site-nav__link::before {
    display: none;
  }

  .site-nav__link:hover,
  .site-nav__link:focus-visible {
    color: var(--color-accent);
    background: rgba(57, 255, 20, 0.06);
  }

  .site-nav__link[aria-current="page"] {
    color: var(--color-accent);
    border-left-color: var(--color-accent);
    background: rgba(57, 255, 20, 0.08);
  }

  .site-nav__link--cta {
    margin: 10px 16px 0;
    height: 44px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--color-accent-alt);
    border-radius: 2px;
    border-left: none;
    color: #ffffff;
    font-weight: 700;
  }

  .site-nav__link--cta:hover,
  .site-nav__link--cta:focus-visible {
    color: #ffffff;
    background: #e05f00;
  }

  /* 页脚 */
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 40px 16px 32px;
  }

  .footer-index {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .footer-index__group:last-child {
    grid-column: 1 / -1;
  }

  .footer-stats {
    gap: 12px;
  }

  .footer-stats__item {
    padding: 12px 12px;
    flex: 1;
    min-width: 0;
  }

  .footer-stats__num {
    font-size: 24px;
  }

  .site-footer__bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 20px 16px;
  }

  .footer-bottom__divider {
    display: none;
  }

  .back-top {
    right: 16px;
    bottom: 16px;
    padding: 10px 14px;
  }
}

@media (max-width: 400px) {
  .site-brand__tag {
    display: none;
  }

  .site-topbar__meta {
    gap: 8px;
  }

  .live-badge__text {
    letter-spacing: 0.1em;
  }
}

/* ---------- 8. 减弱动态 ---------- */
@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;
  }

  .live-badge__dot {
    animation: none;
  }

  .site-nav[data-open] {
    animation: none;
  }

  .back-top {
    transition: none;
    transform: none;
  }
}