/* ==========================================================================
   博九娱乐 · 共享样式表 /assets/site.css
   赛季数据与桌台工具 —— 深夜牌桌旁的精密仪表盘
   ========================================================================== */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

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

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

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

a { color: inherit; }

/* ---------- 2. 变量 ---------- */
:root {
  --ink: #0B0F0D;
  --green: #123B2E;
  --green-deep: #0E2C22;
  --gold: #C6A15B;
  --gold-bright: #E8C87A;
  --cinnabar: #C2452D;
  --steel: #7C93A6;
  --paper: #F4F1E9;
  --gray: #6E736F;
  --sand: #E6DCC4;

  --line: rgba(198, 161, 91, 0.30);
  --line-soft: rgba(198, 161, 91, 0.14);
  --line-strong: rgba(232, 200, 122, 0.62);

  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-num: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas,
    "Liberation Mono", "Courier New", monospace;

  --wrap: 1240px;
  --gut: clamp(16px, 3.4vw, 32px);
  --radius-l: 22px;
  --radius-m: 14px;
  --radius-s: 8px;
  --radius-pill: 999px;

  --t: 160ms ease-out;
}

/* ---------- 3. 基础排版 ---------- */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main { flex: 1 1 auto; }

:target { scroll-margin-top: 148px; }

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

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

/* ---------- 4. 跳过链接 ---------- */
.skip-link {
  position: fixed;
  left: 50%;
  top: 0;
  transform: translate(-50%, -150%);
  z-index: 200;
  padding: 12px 24px;
  background: var(--gold);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  border-radius: 0 0 var(--radius-s) var(--radius-s);
  transition: transform var(--t);
}
.skip-link:focus {
  transform: translate(-50%, 0);
}

/* ---------- 5. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--ink);
  border-bottom: 1px solid var(--line-soft);
  isolation: isolate;
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.85;
  background-image:
    radial-gradient(circle at 14% 26%, rgba(198, 161, 91, 0.055) 0 1px, transparent 1px),
    radial-gradient(circle at 71% 78%, rgba(124, 147, 166, 0.05) 0 1px, transparent 1px);
  background-size: 4px 4px, 7px 7px;
}

.site-header__inner {
  position: relative;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 22px var(--gut) 14px;
  display: flex;
  justify-content: center;
}

.masthead {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}

.masthead__eyebrow {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.42em;
  padding-left: 0.42em;
  color: var(--steel);
  text-transform: uppercase;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  text-decoration: none;
  color: var(--paper);
  transition: color var(--t);
}
.brand:hover,
.brand:focus-visible { color: var(--gold-bright); }

.brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 4.6vw, 46px);
  line-height: 1.05;
  letter-spacing: 0.14em;
  padding-left: 0.14em;
}

.brand__latin {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.46em;
  padding-left: 0.46em;
  color: var(--gold);
  text-transform: uppercase;
}

.masthead__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(18, 59, 46, 0.42);
  color: var(--sand);
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  white-space: nowrap;
}

.status-chip__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cinnabar);
  box-shadow: 0 0 0 3px rgba(194, 69, 45, 0.18);
}

.status-chip--ghost {
  color: var(--steel);
  border-color: rgba(124, 147, 166, 0.3);
  background: transparent;
}

/* 移动端导航按钮 */
.nav-toggle {
  position: absolute;
  top: 24px;
  right: var(--gut);
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--sand);
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  transition: border-color var(--t), color var(--t), background var(--t);
  z-index: 3;
}
.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: var(--gold-bright);
  color: var(--gold-bright);
  background: rgba(198, 161, 91, 0.07);
}

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 16px;
}
.nav-toggle__bars i {
  display: block;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--t), opacity var(--t);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) {
  transform: translateY(4.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) {
  transform: translateY(-4.5px) rotate(-45deg);
}

/* 栏目导航 */
.site-nav {
  width: 100%;
  border-top: 1px solid var(--line-soft);
  background: rgba(14, 44, 34, 0.34);
}

.site-nav__list {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gut);
  display: flex;
  justify-content: center;
  gap: clamp(6px, 2.4vw, 34px);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.site-nav__list::-webkit-scrollbar { display: none; }

.site-nav__item { flex: 0 0 auto; }

.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 15px 4px 16px;
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--sand);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: 9px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t);
}

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

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

.site-nav__link[aria-current="page"] { color: var(--gold); }
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--gold);
}

/* 滚动进度仪 */
.scroll-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--gold-bright));
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
  pointer-events: none;
}

/* ---------- 6. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 112px);
  background: var(--green-deep);
  border-top: 1px solid var(--line);
  color: var(--sand);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(198, 161, 91, 0.055) 0 1px, transparent 1px),
    radial-gradient(circle at 72% 76%, rgba(124, 147, 166, 0.05) 0 1px, transparent 1px);
  background-size: 5px 5px, 9px 9px;
}

.site-footer > * { position: relative; }

.site-footer__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(40px, 5.5vw, 70px) var(--gut) clamp(30px, 3.6vw, 46px);
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2.15fr);
  gap: clamp(28px, 4.5vw, 66px);
  align-items: start;
}

.site-footer__brand { max-width: 330px; }

.footer-brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: 0.16em;
  color: var(--paper);
}

.footer-brand__latin {
  margin-top: 7px;
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.44em;
  padding-left: 0.44em;
  color: var(--gold);
  text-transform: uppercase;
}

.footer-brand__note {
  margin-top: 18px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--steel);
}

.footer-brand__refresh {
  margin-top: 14px;
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--gray);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 34px);
}

.footer-col__title {
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-num);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--gold);
  text-transform: uppercase;
}

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

.footer-col__list a {
  position: relative;
  display: inline-block;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--sand);
  text-decoration: none;
  transition: color var(--t);
}
.footer-col__list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -1px;
  height: 1px;
  background: var(--gold);
  transition: right var(--t);
}
.footer-col__list a:hover,
.footer-col__list a:focus-visible { color: var(--gold-bright); }
.footer-col__list a:hover::after,
.footer-col__list a:focus-visible::after { right: 0; }

/* 联系方式 */
.site-footer__contact {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(22px, 3vw, 34px) var(--gut) clamp(24px, 3vw, 40px);
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 30px;
}

.contact-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
}

.contact-chip__label {
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--steel);
  text-transform: uppercase;
}

.contact-chip__value {
  position: relative;
  padding: 3px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-s);
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--sand);
  transition: border-color var(--t), color var(--t), background var(--t);
}
.contact-chip__value:hover,
.contact-chip__value:focus-visible {
  border-color: var(--line);
  color: var(--gold-bright);
  background: rgba(198, 161, 91, 0.06);
}

.contact-chip__value[data-copied]::after {
  content: "已复制";
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  padding: 3px 9px;
  border-radius: var(--radius-s);
  background: var(--gold);
  color: var(--ink);
  font-size: 11px;
  letter-spacing: 0.1em;
  white-space: nowrap;
  pointer-events: none;
  animation: copy-pop 1400ms ease-out forwards;
}

@keyframes copy-pop {
  0%   { opacity: 0; }
  12%  { opacity: 1; }
  78%  { opacity: 1; }
  100% { opacity: 0; }
}

.site-footer__legal {
  background: var(--ink);
  border-top: 1px solid var(--line-soft);
}

.site-footer__legal-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 18px var(--gut);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--gray);
}

/* ---------- 7. 容器与正文 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gut);
}
.wrap--narrow { max-width: 820px; }

.prose {
  max-width: 42em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--sand);
}
.prose p + p { margin-top: 1.2em; }

.prose h2 {
  margin: 1.9em 0 0.7em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.25;
  letter-spacing: 0.06em;
  color: var(--paper);
}
.prose h3 {
  margin: 1.6em 0 0.5em;
  font-size: 18px;
  letter-spacing: 0.08em;
  color: var(--gold);
}
.prose strong { color: var(--paper); }

.prose ul,
.prose ol { margin: 1em 0; }
.prose ul { padding-left: 0; }
.prose ul li {
  position: relative;
  padding-left: 1.4em;
}
.prose ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--gold);
}
.prose ol { padding-left: 1.4em; list-style: decimal; }
.prose ol li::marker {
  font-family: var(--font-num);
  color: var(--gold);
}

.prose a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--t), color var(--t);
}
.prose a:hover,
.prose a:focus-visible {
  color: var(--gold-bright);
  border-color: var(--gold-bright);
}

.prose code {
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(198, 161, 91, 0.08);
  font-family: var(--font-num);
  font-size: 0.9em;
  color: var(--gold-bright);
}

.prose blockquote {
  margin: 1.6em 0;
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--gold);
  color: var(--steel);
}

/* ---------- 8. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--sand);
  font-size: 13.5px;
  letter-spacing: 0.14em;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--t), color var(--t), background var(--t);
}
.btn:hover,
.btn:focus-visible {
  border-color: var(--gold-bright);
  color: var(--gold-bright);
  background: rgba(198, 161, 91, 0.08);
}

.btn--solid {
  border-color: var(--gold);
  background: var(--gold);
  color: var(--ink);
  font-weight: 700;
}
.btn--solid:hover,
.btn--solid:focus-visible {
  border-color: var(--gold-bright);
  background: var(--gold-bright);
  color: var(--ink);
}

.btn--ghost {
  border-color: rgba(124, 147, 166, 0.35);
  color: var(--steel);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--steel);
  color: var(--paper);
  background: rgba(124, 147, 166, 0.1);
}

.btn--sm {
  padding: 8px 16px;
  font-size: 12px;
}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 20px var(--gut) 0;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.breadcrumb__list li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--line);
}

.breadcrumb__list a {
  color: var(--steel);
  text-decoration: none;
  transition: color var(--t);
}
.breadcrumb__list a:hover,
.breadcrumb__list a:focus-visible { color: var(--gold-bright); }

.breadcrumb__list [aria-current="page"] { color: var(--sand); }

/* ---------- 10. 章节 ---------- */
.section { padding: clamp(48px, 7vw, 92px) 0; }
.section--tight { padding: clamp(30px, 4.5vw, 56px) 0; }

.section__head {
  max-width: var(--wrap);
  margin: 0 auto clamp(22px, 3vw, 40px);
  padding: 0 var(--gut);
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 30px;
}

.section__eyebrow {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.34em;
  color: var(--gold);
  text-transform: uppercase;
}

.section__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.8vw, 44px);
  line-height: 1.1;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.section__lead {
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--steel);
}

/* ---------- 11. 网格 ---------- */
.grid {
  display: grid;
  gap: clamp(14px, 2vw, 24px);
}

.grid--bento {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gut);
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

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

/* ---------- 12. 面板 ---------- */
.panel {
  position: relative;
  padding: clamp(20px, 2.6vw, 32px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-l);
  background: var(--green-deep);
  transition: border-color var(--t), background var(--t);
}
.panel:hover {
  border-color: var(--line);
  background: rgba(18, 59, 46, 0.55);
}

.panel--framed::before,
.panel--framed::after {
  content: "";
  position: absolute;
  width: 15px;
  height: 15px;
  border: 1px solid var(--gold);
  pointer-events: none;
  transition: border-color var(--t);
}
.panel--framed::before {
  top: 11px;
  left: 11px;
  border-right: 0;
  border-bottom: 0;
}
.panel--framed::after {
  right: 11px;
  bottom: 11px;
  border-left: 0;
  border-top: 0;
}
.panel--framed:hover::before,
.panel--framed:hover::after { border-color: var(--gold-bright); }

/* ---------- 13. 数据展示 ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat__label {
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  color: var(--steel);
  text-transform: uppercase;
}

.stat__value {
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(30px, 4.4vw, 52px);
  line-height: 1;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
}

.stat__unit {
  margin-left: 6px;
  font-size: 0.42em;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.desk-id {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: rgba(198, 161, 91, 0.06);
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
  text-transform: uppercase;
  white-space: nowrap;
}
.tag--alert {
  color: var(--cinnabar);
  border-color: rgba(194, 69, 45, 0.45);
  background: rgba(194, 69, 45, 0.08);
}
.tag--cool {
  color: var(--steel);
  border-color: rgba(124, 147, 166, 0.35);
}

/* ---------- 14. 表格 ---------- */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: rgba(14, 44, 34, 0.4);
}

.table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.table caption {
  padding: 16px 18px 10px;
  text-align: left;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--gold);
  text-transform: uppercase;
}

.table th,
.table td {
  padding: 13px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
}

.table thead th {
  background: rgba(11, 15, 13, 0.5);
  font-family: var(--font-num);
  font-weight: 500;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--steel);
  text-transform: uppercase;
  white-space: nowrap;
}

.table tbody tr { transition: background var(--t); }
.table tbody tr:hover { background: rgba(198, 161, 91, 0.06); }
.table tbody tr:last-child td { border-bottom: 0; }

.table .num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  color: var(--gold);
}

/* ---------- 15. 时间轴刻度 ---------- */
.rail {
  position: relative;
  padding-left: 20px;
  border-left: 1px solid var(--line-soft);
}

.rail__tick {
  position: relative;
  padding: 10px 0;
}

.rail__tick::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 19px;
  width: 9px;
  height: 1px;
  background: var(--gold);
}

.rail__tick[aria-current="true"]::before,
.rail__tick.is-active::before {
  width: 15px;
  left: -31px;
  background: var(--gold-bright);
}

/* ---------- 16. 胶囊档位切换 ---------- */
.pill-group {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  background: rgba(11, 15, 13, 0.5);
}

.pill {
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--steel);
  transition: background var(--t), color var(--t);
  white-space: nowrap;
}
.pill:hover { color: var(--sand); }
.pill[aria-selected="true"],
.pill.is-active {
  background: var(--gold);
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 17. 折叠面板 ---------- */
.disclosure {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: rgba(14, 44, 34, 0.35);
  overflow: hidden;
}
.disclosure + .disclosure { margin-top: 10px; }

.disclosure__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--paper);
  transition: color var(--t), background var(--t);
}
.disclosure__summary::-webkit-details-marker { display: none; }
.disclosure__summary::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  transform: rotate(45deg);
  transition: transform var(--t);
}
.disclosure__summary:hover,
.disclosure__summary:focus-visible {
  background: rgba(198, 161, 91, 0.06);
  color: var(--gold-bright);
}
.disclosure[open] .disclosure__summary::after { transform: rotate(-135deg); }

.disclosure__body {
  padding: 16px 20px 20px;
  border-top: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--steel);
}

/* ---------- 18. 横向主题带与斜切 ---------- */
.theme-band {
  background: var(--green);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: clamp(22px, 3.2vw, 38px) 0;
}

.theme-band__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gut);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 30px;
}

.slant-band {
  position: relative;
  height: clamp(40px, 7vw, 88px);
  margin: clamp(30px, 5vw, 64px) 0;
  background: var(--green);
  clip-path: polygon(0 34%, 100% 0, 100% 100%, 0 100%);
}

/* ---------- 19. 图片容器 ---------- */
.media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-l);
  background: linear-gradient(150deg, var(--green-deep), var(--ink) 78%);
  isolation: isolate;
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06);
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(11, 15, 13, 0) 45%, rgba(11, 15, 13, 0.72) 100%);
}

.media--tall { aspect-ratio: 4 / 5; }
.media--wide { aspect-ratio: 21 / 9; }
.media--square { aspect-ratio: 1 / 1; }

.media--pattern {
  background-image:
    repeating-linear-gradient(135deg, rgba(198, 161, 91, 0.07) 0 1px, transparent 1px 12px),
    linear-gradient(150deg, var(--green-deep), var(--ink) 78%);
}

.media__cap {
  position: absolute;
  left: 14px;
  bottom: 12px;
  z-index: 2;
  padding: 4px 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(11, 15, 13, 0.74);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-bright);
}

/* ---------- 20. 目录高亮 ---------- */
[data-spy-link] {
  text-decoration: none;
  transition: color var(--t), border-color var(--t);
}
[data-spy-link][aria-current="location"] {
  color: var(--gold-bright);
  border-color: var(--gold-bright);
}

/* ---------- 21. 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 28px; }
}

@media (max-width: 960px) {
  .site-footer__inner { grid-template-columns: 1fr; }
  .site-footer__brand { max-width: none; }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }

  .site-header__inner { padding: 20px var(--gut) 12px; }

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

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px var(--gut) 18px;
    overflow: visible;
  }

  .site-nav__item { border-bottom: 1px solid var(--line-soft); }
  .site-nav__item:last-child { border-bottom: 0; }

  .site-nav__link {
    display: block;
    padding: 15px 2px;
    font-size: 15px;
  }
  .site-nav__link::after { display: none; }

  .site-nav__link[aria-current="page"] {
    position: relative;
    padding-left: 15px;
    color: var(--gold-bright);
  }
  .site-nav__link[aria-current="page"]::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 15px;
    border-radius: 2px;
    background: var(--gold);
  }

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

  :target { scroll-margin-top: 120px; }
}

@media (max-width: 720px) {
  .masthead__eyebrow { display: none; }

  .brand {
    flex-direction: column;
    align-items: center;
    gap: 7px;
  }

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

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

  .site-footer__legal-inner { flex-direction: column; }
}

@media (max-width: 520px) {
  body { font-size: 15.5px; }

  .status-chip { font-size: 10.5px; padding: 4px 11px; letter-spacing: 0.1em; }

  .site-footer__contact { gap: 10px 20px; }

  .contact-chip { flex-direction: column; align-items: flex-start; gap: 2px; }
}

/* ---------- 22. 无障碍与动效偏好 ---------- */
@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;
    scroll-behavior: auto !important;
  }

  .scroll-progress { display: none; }
}