/* =========================================================
   冠军体育希洪 · 共享样式 /assets/site.css
   01 设计变量  02 重置  03 中文排版  04 布局容器
   05 跳转链接  06 页头  07 页脚  08 通用组件  09 动效与无障碍
   ========================================================= */

/* ---------- 01 设计变量 ---------- */
:root {
  --red: #D71920;
  --red-deep: #A31018;
  --green: #0B3D2E;
  --green-deep: #071A14;
  --gold: #F5C542;
  --stand: #F7F3EC;
  --ivory: #FFFDF7;
  --ink: #071A14;
  --wine: #7A1620;
  --indigo: #173B57;
  --lime: #C9C4B8;
  --ok: #2E7D5B;

  --rail-w: 96px;
  --header-h: 62px;
  --wrap-max: 1280px;
  --pad-x: clamp(18px, 4vw, 56px);
  --gap: clamp(16px, 2.2vw, 28px);
  --radius: 3px;

  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Haettenschweiler", "Arial Narrow", "Impact", "Franklin Gothic Medium", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Roboto Mono", "Courier New", monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur: 200ms;
  --line: 1px solid rgba(7, 26, 20, .14);
  --shadow-1: 0 10px 28px rgba(7, 26, 20, .12);
  --shadow-2: 0 18px 46px rgba(7, 26, 20, .22);
}

/* ---------- 02 重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body,
h1, h2, h3, h4, h5,
p, ul, ol, li, figure, blockquote, dl, dd { margin: 0; padding: 0; }

ul, ol { list-style: none; }

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

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

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

i { font-style: normal; }

/* ---------- 03 中文排版 ---------- */
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background-color: var(--stand);
  background-image: linear-gradient(180deg, rgba(215, 25, 32, .05), rgba(247, 243, 236, 0) 340px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.01em;
}

strong { font-weight: 700; }

::selection {
  background: var(--red);
  color: var(--ivory);
}

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

#main-content {
  display: block;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

/* ---------- 04 布局容器 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

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

@media (min-width: 720px) {
  .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--split { grid-template-columns: 1.35fr .85fr; }
}

@media (min-width: 1120px) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ---------- 05 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 10px 18px;
  background: var(--gold);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  border-radius: 2px;
  box-shadow: var(--shadow-1);
  transform: translateY(-180%);
  transition: transform var(--dur) var(--ease);
}

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

/* ---------- 06 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 70;
  color: var(--stand);
  background: linear-gradient(100deg, var(--green) 0%, #08291F 52%, var(--wine) 100%);
  border-bottom: 1px solid rgba(245, 197, 66, .28);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--red) 0 14px, var(--ivory) 14px 28px);
  opacity: .9;
  pointer-events: none;
}

.rail {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: var(--header-h);
  padding: 0 var(--pad-x);
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1 1 auto;
  min-width: 0;
  color: var(--stand);
}

.brand-stripes {
  display: inline-flex;
  gap: 3px;
  flex: 0 0 auto;
}

.brand-stripes i {
  display: block;
  width: 4px;
  height: 24px;
  background: var(--ivory);
  border-radius: 1px;
}

.brand-stripes i:nth-child(2n) { background: var(--red); }

.brand-name {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .08em;
  white-space: nowrap;
}

.brand-sub { display: none; }

/* 移动导航按钮 */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
  background: rgba(7, 26, 20, .38);
  border: 1px solid rgba(245, 197, 66, .45);
  border-radius: 2px;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.nav-toggle:hover { background: rgba(245, 197, 66, .16); }

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
  width: 16px;
  height: 11px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-4.5px) rotate(-45deg); }

.nav-toggle__text { display: inline-block; }

/* 抽屉导航（移动优先） */
.site-nav {
  position: fixed;
  left: 0;
  right: 0;
  top: var(--header-h);
  z-index: 69;
  max-height: calc(100dvh - var(--header-h));
  overflow-y: auto;
  padding: 18px var(--pad-x) 26px;
  background: linear-gradient(180deg, rgba(7, 26, 20, .98), rgba(11, 61, 46, .98));
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 2px solid var(--gold);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur) var(--ease);
}

.site-nav[data-open] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .22em;
  color: rgba(245, 197, 66, .85);
  padding-bottom: 10px;
}

.nav-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid rgba(245, 197, 66, .22);
}

.nav-item { border-bottom: 1px solid rgba(245, 197, 66, .16); }

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 4px;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .02em;
  color: rgba(247, 243, 236, .9);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.nav-index {
  flex: 0 0 auto;
  min-width: 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gold);
  opacity: .85;
}

.nav-label { display: inline-block; }

.nav-link:hover { color: var(--gold); background: rgba(245, 197, 66, .08); }

.nav-link[aria-current="page"] {
  color: var(--gold);
  background: linear-gradient(90deg, rgba(245, 197, 66, .18), rgba(245, 197, 66, 0));
}

.nav-link[aria-current="page"] .nav-index { opacity: 1; color: var(--ivory); }

.nav-utility {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.nav-utility__link {
  flex: 1 1 auto;
  min-width: 120px;
  padding: 10px 14px;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ink);
  background: var(--gold);
  border-radius: 2px;
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.nav-utility__link:hover { background: var(--ivory); transform: translateY(-2px); }

.nav-utility__link + .nav-utility__link {
  color: var(--gold);
  background: transparent;
  border: 1px solid rgba(245, 197, 66, .55);
}

.nav-utility__link + .nav-utility__link:hover { background: rgba(245, 197, 66, .16); }

.rail-meta { display: none; }

/* 桌面轨道 */
@media (min-width: 1024px) {
  body { padding-left: var(--rail-w); }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--rail-w);
    height: 100vh;
    border-right: 1px solid rgba(245, 197, 66, .26);
    border-bottom: 0;
    overflow: hidden;
  }

  .site-header::after { display: none; }

  .rail {
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 0;
    height: 100%;
    min-height: 0;
    padding: 22px 0 16px;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: none;
  }

  .rail::-webkit-scrollbar { display: none; }

  .brand {
    flex: 0 0 auto;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 0 4px;
    text-align: center;
  }

  .brand-stripes { gap: 2px; }
  .brand-stripes i { width: 3px; height: 16px; }

  .brand-name {
    font-size: 13px;
    letter-spacing: .18em;
    line-height: 1.35;
    white-space: normal;
    max-width: 80px;
  }

  .brand-sub {
    display: block;
    max-width: 80px;
    font-family: var(--font-mono);
    font-size: 8.5px;
    letter-spacing: .14em;
    line-height: 1.6;
    color: rgba(247, 243, 236, .5);
  }

  .nav-toggle { display: none; }

  .nav-kicker { display: none; }

  .site-nav {
    position: static;
    width: 100%;
    margin: auto 0;
    padding: 0;
    max-height: none;
    overflow: visible;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: none;
    border: 0;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .nav-list {
    width: 100%;
    gap: 2px;
    border-top: 0;
  }

  .nav-item {
    border-bottom: 1px solid rgba(245, 197, 66, .12);
  }

  .nav-item:first-child { border-top: 1px solid rgba(245, 197, 66, .12); }

  .nav-link {
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 9px 6px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .02em;
  }

  .nav-index { min-width: 0; font-size: 9px; letter-spacing: .14em; }

  .nav-link::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 5px;
    height: 2px;
    background: var(--gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--dur) var(--ease);
  }

  .nav-link:hover::after,
  .nav-link:focus-visible::after,
  .nav-link[aria-current="page"]::after { transform: scaleX(1); }

  .nav-link:hover { background: rgba(245, 197, 66, .07); }

  .nav-link[aria-current="page"] {
    background: rgba(245, 197, 66, .13);
  }

  .nav-utility { display: none; }

  .rail-meta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
    padding-bottom: 2px;
    font-family: var(--font-mono);
    font-size: 8.5px;
    letter-spacing: .12em;
    color: rgba(247, 243, 236, .5);
    text-align: center;
  }

  .rail-meta__coord { line-height: 1.6; }

  .rail-meta__label {
    font-size: 8px;
    letter-spacing: .16em;
    color: rgba(245, 197, 66, .8);
  }

  .rail-meta__link {
    display: block;
    width: 68px;
    padding: 7px 2px;
    font-size: 9.5px;
    letter-spacing: .08em;
    line-height: 1.35;
    color: var(--gold);
    border: 1px solid rgba(245, 197, 66, .5);
    border-radius: 2px;
    transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
  }

  .rail-meta__link:hover { background: var(--gold); color: var(--ink); }

  #main-content { scroll-margin-top: 28px; }
}

/* ---------- 07 页脚 ---------- */
.site-footer {
  position: relative;
  color: var(--stand);
  background: var(--green-deep);
  margin-top: clamp(40px, 7vw, 88px);
}

.footer-top {
  position: relative;
  overflow: hidden;
  background: linear-gradient(115deg, var(--green) 0%, #08291F 58%, var(--wine) 100%);
}

.footer-top::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -8%;
  width: 460px;
  height: 460px;
  background: repeating-linear-gradient(118deg, rgba(215, 25, 32, .55) 0 9px, rgba(215, 25, 32, 0) 9px 26px);
  opacity: .18;
  pointer-events: none;
}

.footer-top__inner {
  position: relative;
  display: grid;
  gap: clamp(26px, 3.4vw, 46px);
  grid-template-columns: minmax(0, 1fr);
  padding-block: clamp(34px, 5vw, 64px);
}

.footer-brand { display: grid; gap: 10px; align-content: start; }

.footer-brand .brand-stripes { margin-bottom: 2px; }

.footer-brand__name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--ivory);
}

.footer-brand__sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  color: rgba(247, 243, 236, .55);
}

.footer-brand__line {
  font-size: 14px;
  color: rgba(247, 243, 236, .78);
  max-width: 24ch;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 36px);
}

.footer-col { min-width: 0; }

.footer-col__title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--gold);
  padding-bottom: 8px;
  margin-bottom: 10px;
  border-bottom: 1px dashed rgba(245, 197, 66, .35);
}

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

.footer-col__link {
  display: inline-block;
  padding: 5px 0;
  font-size: 14px;
  color: rgba(247, 243, 236, .82);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.footer-col__link:hover { color: var(--gold); transform: translateX(3px); }

.footer-stats {
  display: grid;
  gap: 10px;
  align-content: start;
  padding-top: 4px;
}

.footer-stats__title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  color: rgba(247, 243, 236, .6);
}

.footer-stats__list { display: grid; gap: 0; }

.stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(247, 243, 236, .12);
}

.stat__num {
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--gold);
  line-height: 1.1;
}

.stat__label {
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(247, 243, 236, .66);
}

.footer-badge {
  justify-self: start;
  margin-top: 6px;
  padding: 5px 11px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--gold);
  background: rgba(245, 197, 66, .1);
  border: 1px solid rgba(245, 197, 66, .55);
  border-radius: 2px;
}

.footer-bottom {
  background: var(--ink);
  border-top: 1px solid rgba(245, 197, 66, .22);
}

.footer-bottom__inner {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
  padding-block: clamp(20px, 3vw, 30px);
}

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.contact-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  background: rgba(247, 243, 236, .05);
  border: 1px solid rgba(247, 243, 236, .16);
  border-radius: 2px;
}

.contact-item__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--gold);
}

.contact-item__value {
  font-size: 13px;
  line-height: 1.5;
  color: rgba(247, 243, 236, .9);
  word-break: break-word;
}

.contact-item__link {
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(245, 197, 66, .5);
  transition: color var(--dur) var(--ease);
}

.contact-item__link:hover { color: var(--ivory); }

.contact-copy {
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--gold);
  border: 1px solid rgba(245, 197, 66, .5);
  border-radius: 2px;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.contact-copy:hover { background: var(--gold); color: var(--ink); }

.contact-copy[data-copied] {
  background: var(--ok);
  border-color: var(--ok);
  color: var(--ivory);
}

.footer-legal {
  display: grid;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: rgba(247, 243, 236, .55);
}

.footer-legal__note { font-family: var(--font-body); font-size: 12.5px; letter-spacing: .02em; }

.footer-legal__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.footer-legal__link {
  color: rgba(247, 243, 236, .78);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(245, 197, 66, .45);
  transition: color var(--dur) var(--ease);
}

.footer-legal__link:hover { color: var(--gold); }

.footer-legal__sep { color: rgba(247, 243, 236, .3); }

.footer-legal__meta { line-height: 1.7; }

@media (min-width: 760px) {
  .footer-top__inner { grid-template-columns: 1.1fr 1.7fr; }
  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-stats { grid-column: 1 / -1; grid-template-columns: 1fr; }
}

@media (min-width: 1120px) {
  .footer-top__inner { grid-template-columns: 1.15fr 1.7fr .9fr; }
  .footer-stats { grid-column: auto; }
  .footer-bottom__inner { grid-template-columns: 1.5fr 1fr; align-items: start; }
  .footer-legal { justify-items: end; text-align: right; }
  .footer-legal__links { justify-content: flex-end; }
}

/* ---------- 08 通用组件 ---------- */
/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .05em;
  line-height: 1.25;
  text-align: center;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-1); }
.btn:active { transform: translateY(0); box-shadow: none; }

.btn--primary {
  background: var(--red);
  color: var(--ivory);
  border-color: var(--red);
}

.btn--primary:hover { background: var(--red-deep); border-color: var(--red-deep); }

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

.btn--gold:hover { background: #FFD75E; border-color: #FFD75E; }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: rgba(7, 26, 20, .45);
}

.btn--ghost:hover { background: var(--ink); color: var(--stand); border-color: var(--ink); }

/* 面包屑 */
.breadcrumb { padding-top: 16px; }

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(7, 26, 20, .55);
}

.breadcrumb__item { display: inline-flex; align-items: center; gap: 6px; }

.breadcrumb__link {
  color: var(--indigo);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(23, 59, 87, .35);
  transition: color var(--dur) var(--ease);
}

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

.breadcrumb__sep { color: var(--lime); }

.breadcrumb__item[aria-current="page"] {
  color: var(--wine);
  font-weight: 700;
}

/* 章节头 */
.section-head {
  display: grid;
  gap: 12px;
  max-width: 70ch;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--red);
}

.section-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--red);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(26px, 4.2vw, 46px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.005em;
  color: var(--ink);
}

.section-note {
  max-width: 64ch;
  font-size: 15px;
  color: rgba(7, 26, 20, .68);
}

/* 坐标索引与标签 */
.idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--indigo);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  border: 1px solid currentColor;
  border-radius: 999px;
  color: var(--indigo);
  background: rgba(23, 59, 87, .07);
}

.tag--red {
  color: var(--red);
  background: rgba(215, 25, 32, .08);
}

.tag--gold {
  color: #7A5B00;
  border-color: rgba(245, 197, 66, .95);
  background: rgba(245, 197, 66, .22);
}

/* 内容层 */
.panel {
  position: relative;
  padding: clamp(18px, 2.4vw, 30px);
  background: var(--ivory);
  border: var(--line);
  border-radius: var(--radius);
}

.panel--glass {
  background: linear-gradient(140deg, rgba(255, 253, 247, .82), rgba(247, 243, 236, .52));
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-color: rgba(255, 255, 255, .7);
  box-shadow: var(--shadow-1);
}

.panel--solid {
  background: linear-gradient(150deg, var(--green) 0%, #08291F 70%, var(--wine) 100%);
  color: var(--stand);
  border-color: rgba(245, 197, 66, .32);
}

.panel--cut {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  border-radius: 0;
}

.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px dashed rgba(7, 26, 20, .18);
}

.panel--solid .panel__head { border-bottom-color: rgba(245, 197, 66, .32); }

.panel__body { display: grid; gap: 12px; }

/* 数据条带 */
.data-strip {
  display: flex;
  overflow-x: auto;
  border-top: 2px solid var(--red);
  border-bottom: 1px solid rgba(7, 26, 20, .16);
  background: var(--ivory);
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.data-strip__item {
  flex: 0 0 auto;
  min-width: 150px;
  padding: 16px 20px;
  border-right: 1px dashed rgba(7, 26, 20, .14);
  scroll-snap-align: start;
}

.data-strip__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--green);
}

.data-strip__label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  color: rgba(7, 26, 20, .6);
}

/* 图片容器基础规则（页面阶段放置占位） */
.media-frame {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--green) 0%, var(--wine) 100%);
}

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

.media-frame--cut {
  border-radius: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), calc(100% - 32px) 100%, 0 100%);
}

.media-frame__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(215, 25, 32, .58) 0%, rgba(7, 26, 20, .18) 46%, rgba(11, 61, 46, .62) 100%);
  pointer-events: none;
}

.media-frame__caption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--ivory);
  text-shadow: 0 1px 3px rgba(0, 0, 0, .45);
}

/* 分隔线 */
.rule {
  height: 1px;
  margin-block: clamp(24px, 4vw, 48px);
  background: rgba(7, 26, 20, .16);
  border: 0;
}

.rule--gold {
  height: 2px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(245, 197, 66, 0) 100%);
}

/* 正文排版 */
.prose {
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: rgba(7, 26, 20, .88);
}

.prose > * + * { margin-top: 1em; }

.prose h2 {
  font-size: clamp(22px, 3vw, 30px);
  color: var(--green);
}

.prose h3 {
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--ink);
}

.prose ul,
.prose ol {
  padding-left: 1.3em;
}

.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }

.prose li + li { margin-top: .35em; }

.prose a {
  color: var(--indigo);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(23, 59, 87, .4);
}

.prose a:hover { color: var(--red); text-decoration-color: rgba(215, 25, 32, .5); }

.prose strong { color: var(--ink); }

.prose blockquote {
  padding: 12px 0 12px 18px;
  border-left: 3px solid var(--gold);
  color: rgba(7, 26, 20, .72);
}

/* 滚动进度 */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  height: 3px;
  background: rgba(7, 26, 20, .18);
  pointer-events: none;
}

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

@media (min-width: 1024px) {
  .scroll-progress { left: var(--rail-w); }
}

/* 显现协议 */
[data-reveal].is-armed {
  opacity: 0;
  transform: translateY(18px);
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}

/* 导航开启时的滚动锁 */
body.is-nav-open { overflow: hidden; }

/* ---------- 09 动效与无障碍 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .btn:hover,
  .nav-utility__link:hover,
  .footer-col__link:hover { transform: none; }

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