/* ==========================================================================
   site.css — 亚新综合体育 · 共享样式
   夜场档案：深墨绿底 / 苔绿玻璃层 / 荧光青柠信号 / 橙红速度感 / 暖白长文
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Reset 与基础
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-body);
  font-size: clamp(15px, 0.28vw + 14.2px, 17px);
  line-height: 1.75;
  letter-spacing: 0.012em;
  color: var(--fg);
  background-color: var(--c-ink);
  background-image:
    repeating-linear-gradient(0deg, rgba(247, 242, 232, 0.014) 0 1px, transparent 1px 3px),
    radial-gradient(120% 85% at 8% -12%, rgba(30, 58, 50, 0.9), transparent 58%),
    radial-gradient(95% 70% at 96% 2%, rgba(184, 116, 79, 0.16), transparent 56%),
    linear-gradient(180deg, #0B1F1A 0%, #0B1F1A 55%, #0A1A16 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

button {
  font-family: inherit;
}

ul,
ol {
  padding: 0;
}

#main-content {
  display: block;
}

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

/* --------------------------------------------------------------------------
   2. CSS 变量
   -------------------------------------------------------------------------- */
:root {
  /* 矿物色体系 */
  --c-ink: #0B1F1A;
  --c-carbon: #111614;
  --c-moss: #1E3A32;
  --c-lime: #C6FF3D;
  --c-ember: #FF5A36;
  --c-paper: #F7F2E8;
  --c-mist: #C9CFC7;
  --c-stone: #6E7A70;
  --c-clay: #B8744F;
  --c-linen: #EFE6D3;

  /* 语义层 */
  --bg: var(--c-ink);
  --bg-deep: var(--c-carbon);
  --bg-glass: rgba(30, 58, 50, 0.52);
  --fg: var(--c-paper);
  --fg-muted: var(--c-mist);
  --fg-dim: var(--c-stone);
  --line: rgba(201, 207, 199, 0.16);
  --line-strong: rgba(201, 207, 199, 0.36);
  --accent: var(--c-lime);
  --alert: var(--c-ember);

  /* 字体 */
  --font-display: "PingFang SC", "Helvetica Neue", "Arial Narrow", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SFMono-Regular", Menlo, Consolas, "Courier New", monospace;

  /* 六级字号 */
  --step-6: clamp(3.2rem, 12vw, 8.5rem);
  --step-5: clamp(2.1rem, 5.4vw, 3.4rem);
  --step-4: clamp(1.6rem, 3.4vw, 2.35rem);
  --step-3: clamp(1.24rem, 2.1vw, 1.6rem);
  --step-2: 1.05rem;
  --step-1: 0.92rem;
  --step-0: 0.76rem;

  /* 度量 */
  --shell: 1280px;
  --gutter: clamp(1rem, 4vw, 3rem);
  --radius: 2px;
  --shadow-lift: 0 20px 46px -26px rgba(0, 0, 0, 0.95);
}

/* --------------------------------------------------------------------------
   3. 中文排版与标题体系
   -------------------------------------------------------------------------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 0.6em;
  color: var(--c-paper);
  text-wrap: balance;
}

h1 { font-size: var(--step-5); line-height: 1.02; }
h2 { font-size: var(--step-4); }
h3 { font-size: var(--step-3); }
h4 { font-size: var(--step-2); }

p {
  margin: 0 0 1.1em;
}

p:last-child {
  margin-bottom: 0;
}

strong,
b {
  font-weight: 800;
  color: var(--c-paper);
}

small {
  font-size: var(--step-0);
}

.num,
.contact-list__mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

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

/* --------------------------------------------------------------------------
   4. 焦点与无障碍
   -------------------------------------------------------------------------- */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible,
input:focus-visible {
  outline: 2px solid var(--c-lime);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: fixed;
  top: 0.6rem;
  left: 0.6rem;
  z-index: 999;
  transform: translateY(-220%);
  display: inline-block;
  padding: 0.7rem 1.15rem;
  background: var(--c-lime);
  color: var(--c-ink);
  font-weight: 800;
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-radius: var(--radius);
  transition: transform 0.2s ease;
}

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

/* --------------------------------------------------------------------------
   5. 页头：状态带 + 居中刊头 + 栏目条
   -------------------------------------------------------------------------- */
.site-header {
  position: relative;
  z-index: 40;
  background: linear-gradient(180deg, rgba(11, 31, 26, 0.99) 0%, rgba(11, 31, 26, 0.9) 100%);
  border-bottom: 1px solid var(--line);
}

/* 5.1 顶部状态带 */
.topline {
  background: var(--c-carbon);
  border-bottom: 1px solid var(--line);
}

.topline__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0.5rem var(--gutter);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.topline__status {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  color: var(--c-mist);
}

.topline__meta {
  margin: 0;
  color: var(--fg-dim);
}

.pulse {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-lime);
  box-shadow: 0 0 0 0 rgba(198, 255, 61, 0.7);
  animation: pulse-ring 2.4s ease-out infinite;
}

@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(198, 255, 61, 0.62); }
  70%  { box-shadow: 0 0 0 8px rgba(198, 255, 61, 0); }
  100% { box-shadow: 0 0 0 0 rgba(198, 255, 61, 0); }
}

/* 5.2 刊头 */
.masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: clamp(1rem, 3vw, 2.5rem);
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(1.05rem, 2.4vw, 1.9rem) var(--gutter) clamp(0.95rem, 2vw, 1.5rem);
}

.masthead__start {
  display: flex;
  align-items: center;
  min-width: 0;
}

.masthead__end {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.7rem;
  min-width: 0;
}

.masthead__edition {
  display: inline-block;
  padding-left: 0.62rem;
  border-left: 2px solid var(--c-clay);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  line-height: 1.35;
  letter-spacing: 0.14em;
  color: var(--fg-dim);
}

/* 品牌字标 */
.brand {
  display: grid;
  justify-items: center;
  gap: 0.4rem;
  text-align: center;
  text-decoration: none;
  color: inherit;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.45rem, 3.3vw, 2.3rem);
  line-height: 1;
  letter-spacing: 0.1em;
  text-indent: 0.1em;
  color: var(--c-paper);
  transition: color 0.22s ease;
}

.brand__line {
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.32em;
  text-indent: 0.32em;
  color: var(--c-lime);
  white-space: nowrap;
}

.brand:hover .brand__name,
.brand:focus-visible .brand__name {
  color: var(--c-lime);
}

/* 检索入口 */
.masthead__search {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  color: var(--c-mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.masthead__search:hover,
.masthead__search:focus-visible {
  color: var(--c-ink);
  background: var(--c-lime);
  border-color: var(--c-lime);
}

/* 移动端开关 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.52rem 0.78rem;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-mist);
  background: var(--c-moss);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

.nav-toggle__icon {
  display: block;
  width: 18px;
  height: 12px;
  background-image:
    linear-gradient(var(--c-lime), var(--c-lime)),
    linear-gradient(var(--c-lime), var(--c-lime)),
    linear-gradient(var(--c-lime), var(--c-lime));
  background-repeat: no-repeat;
  background-size: 100% 2px, 100% 2px, 100% 2px;
  background-position: 0 0, 0 5px, 0 10px;
}

.nav-toggle__text {
  line-height: 1;
}

/* 5.3 栏目条 */
.site-nav {
  background: rgba(17, 22, 20, 0.74);
  border-top: 1px solid var(--line);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
  list-style: none;
}

.site-nav__list > li {
  position: relative;
}

.site-nav__list > li + li {
  border-left: 1px solid var(--line);
}

.site-nav__list a {
  position: relative;
  display: block;
  padding: 0.95rem 1.1rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-mist);
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-nav__list a::after {
  content: "";
  position: absolute;
  left: 1.1rem;
  right: 1.1rem;
  bottom: 0.42rem;
  height: 2px;
  background: var(--c-lime);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.site-nav__list a:hover,
.site-nav__list a:focus-visible {
  color: var(--c-paper);
}

.site-nav__list a:hover::after,
.site-nav__list a:focus-visible::after {
  transform: scaleX(1);
}

.site-nav__list a[aria-current="page"] {
  color: var(--c-ink);
  background: var(--c-lime);
  font-weight: 800;
}

.site-nav__list a[aria-current="page"]::after {
  display: none;
}

/* 5.4 页头响应式 */
@media (max-width: 899px) {
  .masthead {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.8rem;
    padding: 1.05rem var(--gutter) 0.95rem;
  }

  .masthead__start {
    display: none;
  }

  .masthead__end {
    justify-content: flex-end;
  }

  .brand {
    justify-items: start;
    text-align: left;
  }

  .brand__line {
    letter-spacing: 0.22em;
    text-indent: 0.22em;
  }

  .masthead__search {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    border-top: 1px solid var(--line);
  }

  .site-nav[data-open="true"] {
    display: block;
  }

  .site-nav__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.45rem;
    padding: 0.85rem var(--gutter) 1.05rem;
  }

  .site-nav__list > li + li {
    border-left: 0;
  }

  .site-nav__list a {
    padding: 0.72rem 0.85rem;
    font-size: 0.78rem;
    letter-spacing: 0.09em;
    background: rgba(30, 58, 50, 0.66);
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }

  .site-nav__list a::after {
    display: none;
  }

  .site-nav__list a[aria-current="page"] {
    color: var(--c-ink);
    background: var(--c-lime);
    border-color: var(--c-lime);
  }
}

@media (max-width: 599px) {
  .topline__meta {
    display: none;
  }

  .topline__inner {
    justify-content: flex-start;
  }

  .brand__name {
    font-size: 1.32rem;
    letter-spacing: 0.07em;
    text-indent: 0.07em;
  }

  .brand__line {
    font-size: 0.62rem;
    letter-spacing: 0.16em;
    text-indent: 0.16em;
  }
}

/* --------------------------------------------------------------------------
   6. 页脚
   -------------------------------------------------------------------------- */
.site-footer {
  margin-top: clamp(3rem, 7vw, 6rem);
  background: var(--c-carbon);
  border-top: 1px solid var(--line);
  color: var(--fg-muted);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr 1fr;
  gap: clamp(1.6rem, 4vw, 3.5rem);
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(2.2rem, 5vw, 3.8rem) var(--gutter) clamp(1.6rem, 3vw, 2.6rem);
}

.footer-brand__name {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.32rem;
  letter-spacing: 0.1em;
  color: var(--c-paper);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-brand__name:hover,
.footer-brand__name:focus-visible {
  color: var(--c-lime);
}

.footer-brand__line {
  max-width: 26ch;
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--c-mist);
}

/* 标签贴片 */
.tag-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tag-chip {
  display: inline-block;
  padding: 0.28rem 0.62rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  line-height: 1.5;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-lime);
  background: rgba(198, 255, 61, 0.07);
  border: 1px solid rgba(198, 255, 61, 0.42);
  border-radius: var(--radius);
}

/* 页脚导航 */
.footer-nav__title,
.footer-contact__title {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-stone);
}

.footer-nav ul {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-nav a {
  font-size: 0.92rem;
  color: var(--c-mist);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* 联系方式 */
.contact-list {
  display: grid;
  gap: 0.9rem;
  margin: 0;
}

.contact-list__item dt {
  margin-bottom: 0.18rem;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-stone);
}

.contact-list__item dd {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-paper);
  overflow-wrap: anywhere;
}

.contact-list__mono {
  font-size: 0.86rem;
}

.footer-contact__cta {
  margin-top: 1.35rem;
}

/* 页脚底栏 */
.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem 1.5rem;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 1.1rem var(--gutter) 1.6rem;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  color: var(--fg-dim);
}

.footer-legal {
  margin: 0;
}

.footer-legal strong {
  color: var(--c-mist);
  font-weight: 700;
}

.footer-legal__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-legal__links a {
  color: var(--c-mist);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-legal__links a:hover,
.footer-legal__links a:focus-visible {
  color: var(--c-lime);
}

.footer-icp {
  margin: 0;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

@media (max-width: 899px) {
  .site-footer__top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.8rem 2rem;
  }

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

@media (max-width: 599px) {
  .site-footer__top {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* --------------------------------------------------------------------------
   7. 布局工具
   -------------------------------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(2.4rem, 6vw, 5rem);
}

.section--tight {
  padding-block: clamp(1.5rem, 3vw, 2.6rem);
}

.grid {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.75rem);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 899px) {
  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 599px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* --------------------------------------------------------------------------
   8. 通用文字组件
   -------------------------------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-lime);
}

.eyebrow::before {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
}

.section-title {
  margin: 0 0 0.45em;
  font-size: var(--step-4);
  line-height: 1.1;
}

/* --------------------------------------------------------------------------
   9. 按钮
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.78rem 1.3rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.08em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.btn--primary {
  background: var(--c-ember);
  color: #180A05;
  border-color: var(--c-ember);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: #FF755A;
  border-color: #FF755A;
}

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

.btn--lime:hover,
.btn--lime:focus-visible {
  background: #D8FF74;
  border-color: #D8FF74;
}

.btn--ghost {
  background: transparent;
  color: var(--c-paper);
  border-color: var(--line-strong);
}

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

.btn:active {
  transform: translateY(1px);
}

/* --------------------------------------------------------------------------
   10. 面包屑
   -------------------------------------------------------------------------- */
.breadcrumb {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 1.1rem var(--gutter) 0;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--c-clay);
}

.breadcrumb a {
  color: var(--c-mist);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--c-lime);
}

/* --------------------------------------------------------------------------
   11. 玻璃面板 / 长文区
   -------------------------------------------------------------------------- */
.panel {
  padding: clamp(1.1rem, 2.4vw, 1.8rem);
  background: var(--bg-glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lift);
}

@supports (backdrop-filter: blur(10px)) {
  .panel {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
}

.prose {
  padding: clamp(1.4rem, 4vw, 3.1rem);
  background: var(--c-paper);
  color: #16211C;
  border-radius: var(--radius);
  font-size: 1rem;
  line-height: 1.85;
}

.prose h2,
.prose h3,
.prose h4 {
  color: #0B1F1A;
  letter-spacing: -0.01em;
}

.prose h2 {
  margin-top: 1.9em;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose p {
  margin-bottom: 1.15em;
}

.prose a {
  color: #1E3A32;
  text-decoration-color: var(--c-clay);
}

.prose a:hover {
  color: #0B1F1A;
  text-decoration-color: var(--c-ember);
}

.prose ul,
.prose ol {
  padding-left: 1.35em;
  margin: 0 0 1.2em;
}

.prose li {
  margin-bottom: 0.5em;
}

.prose blockquote {
  margin: 1.8rem 0;
  padding: 0.25rem 0 0.25rem 1.2rem;
  border-left: 3px solid var(--c-clay);
  font-family: var(--font-display);
  font-size: 1.08rem;
  line-height: 1.7;
  color: #2A3A32;
}

.prose code {
  padding: 0.12em 0.4em;
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(11, 31, 26, 0.07);
  border-radius: var(--radius);
}

/* --------------------------------------------------------------------------
   12. 响应式图片容器（页面阶段放置图片用）
   -------------------------------------------------------------------------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background:
    linear-gradient(140deg, var(--c-moss) 0%, var(--c-carbon) 72%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.media > img,
.media > video,
.media > picture > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--portrait { aspect-ratio: 3 / 4; }
.media--square   { aspect-ratio: 1 / 1; }
.media--wide     { aspect-ratio: 21 / 9; }
.media--plain    { aspect-ratio: auto; }

.media__caption {
  margin: 0.6rem 0 0;
  font-size: 0.76rem;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--fg-dim);
}

/* --------------------------------------------------------------------------
   13. JS 注入：滚动进度与返回顶部
   -------------------------------------------------------------------------- */
.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  height: 3px;
  background: rgba(201, 207, 199, 0.12);
  pointer-events: none;
}

.scroll-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--c-lime) 0%, var(--c-ember) 100%);
}

.to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 55;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 0.95rem;
  font-family: var(--font-body);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--c-ink);
  background: var(--c-lime);
  border: 0;
  border-radius: var(--radius);
  cursor: pointer;
  box-shadow: 0 14px 34px -14px rgba(198, 255, 61, 0.55);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease, background 0.2s ease;
}

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

.to-top:hover {
  background: #D8FF74;
}

.to-top__icon {
  font-size: 0.95rem;
  line-height: 1;
}

.to-top__label {
  line-height: 1;
}

/* --------------------------------------------------------------------------
   14. 内容入场
   -------------------------------------------------------------------------- */
.has-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.has-reveal [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   15. 减少动态偏好
   -------------------------------------------------------------------------- */
@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;
  }

  .pulse {
    animation: none;
  }

  .has-reveal [data-reveal],
  .has-reveal [data-reveal].is-revealed {
    opacity: 1;
    transform: none;
  }

  .to-top {
    transition: opacity 0.001ms linear, visibility 0.001ms linear;
  }
}