/* ==========================================================================
   斗球官方版 · 共享样式表 /assets/site.css
   夜场深蓝画布 + 篮球橙锚点 + 记分牌数字 + 切角面板
   ========================================================================== */

/* ---------- 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, ul, ol, li, figure, blockquote, dl, dd { margin: 0; padding: 0; }

ul, ol { 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; text-decoration: none; }

table { border-collapse: collapse; width: 100%; }

/* ---------- 2. 设计变量 ---------- */
:root {
  --c-ink: #0A1020;
  --c-panel: #121B2E;
  --c-orange: #FF6A1A;
  --c-green: #1FB25A;
  --c-yellow: #EDFF4A;
  --c-white: #FFFFFF;
  --c-muted: #8C9AB0;
  --c-line: #26324A;
  --c-red: #E5484D;
  --c-paper: #F1F4F9;

  --font-head: "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Noto Sans SC", system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-1: 120ms;
  --dur-2: 240ms;
  --dur-3: 360ms;

  --cut-sm: 10px;
  --cut: 18px;
  --cut-lg: 26px;

  --shell: 1280px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background-color: var(--c-ink);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 64px 64px, 64px 64px;
  color: var(--c-white);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.005em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

:focus-visible {
  outline: 2px solid var(--c-yellow);
  outline-offset: 3px;
}

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

/* ---------- 4. 通用容器 ---------- */
.container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(2.5rem, 7vw, 5rem); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.section-title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.section-lead {
  max-width: 46ch;
  color: var(--c-muted);
  font-size: 0.95rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--c-orange);
}

/* ---------- 5. 跳至主内容 ---------- */
.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 200;
  padding: 0.7rem 1.1rem;
  background: var(--c-yellow);
  color: var(--c-ink);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  transform: translateY(-180%);
  transition: transform var(--dur-2) var(--ease);
  clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%, 0 var(--cut-sm));
}

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

/* ---------- 6. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(10, 16, 32, 0.94);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-line);
  transition: background var(--dur-2) var(--ease);
}

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: transparent;
  overflow: hidden;
  pointer-events: none;
}

.scroll-progress-bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--c-orange), var(--c-yellow));
}

.header-grid {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 2rem);
  padding-block: 0.85rem;
  transition: padding var(--dur-2) var(--ease);
}

.site-header[data-scrolled] .header-grid { padding-block: 0.45rem; }

/* 品牌区 */
.brand-cluster {
  display: flex;
  align-items: center;
  gap: clamp(0.6rem, 2vw, 1.6rem);
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.62rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--c-ink);
  background: var(--c-orange);
  clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%, 0 var(--cut-sm));
  transition: font-size var(--dur-2) var(--ease);
}

.site-header[data-scrolled] .brand-mark { font-size: 0.95rem; }

.brand-sub {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.25;
}

.brand-full {
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.brand-line {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--c-muted);
  white-space: nowrap;
}

.site-header[data-scrolled] .brand-line { display: none; }

.brand--footer .brand-mark { font-size: 1.15rem; }
.brand--footer .brand-full { font-size: 1.05rem; }

/* 赛季选择器 */
.season-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-left: clamp(0.6rem, 2vw, 1.5rem);
  border-left: 1px solid var(--c-line);
}

.selector-label {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-muted);
  white-space: nowrap;
}

.season-track {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.season-chip {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8rem;
  line-height: 1;
  padding: 0.34rem 0.45rem;
  color: var(--c-muted);
  background: transparent;
  border: 1px solid transparent;
  transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}

.season-chip:hover { color: var(--c-white); border-color: var(--c-line); }

.season-chip[aria-pressed="true"] {
  color: var(--c-ink);
  background: var(--c-yellow);
  border-color: var(--c-yellow);
}

/* 导航区 */
.nav-cluster { justify-self: end; min-width: 0; }

.primary-nav { display: flex; align-items: center; justify-content: flex-end; }

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.1rem, 0.6vw, 0.35rem);
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 0.55rem 0.7rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--c-muted);
  white-space: nowrap;
  transition: color var(--dur-1) var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.7rem;
  right: 0.7rem;
  bottom: 0.22rem;
  height: 2px;
  background: var(--c-orange);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform var(--dur-2) var(--ease);
}

.nav-link:hover { color: var(--c-white); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] { color: var(--c-white); font-weight: 700; }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.nav-cta { display: none; }

/* 工具区 */
.tool-cluster {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tool-button,
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.8rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-muted);
  border: 1px solid var(--c-line);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}

.tool-button:hover,
.nav-toggle:hover { color: var(--c-white); border-color: var(--c-orange); }

.tool-button[aria-expanded="true"] {
  color: var(--c-ink);
  background: var(--c-yellow);
  border-color: var(--c-yellow);
}

.tool-icon {
  position: relative;
  width: 10px;
  height: 10px;
  border: 2px solid currentColor;
  border-radius: 50%;
}

.tool-icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -4px;
  width: 6px;
  height: 2px;
  background: currentColor;
  transform: rotate(45deg);
}

.nav-toggle { display: none; }

.nav-toggle-bars {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 16px;
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: currentColor;
  transition: transform var(--dur-2) var(--ease);
}

.site-header[data-open] .nav-toggle {
  color: var(--c-ink);
  background: var(--c-yellow);
  border-color: var(--c-yellow);
}

.site-header[data-open] .nav-toggle-bar:first-child { transform: translateY(3px) rotate(45deg); }
.site-header[data-open] .nav-toggle-bar:last-child { transform: translateY(-3px) rotate(-45deg); }

/* 数据条 */
.status-strip {
  border-top: 1px solid var(--c-line);
  background: rgba(18, 27, 46, 0.55);
}

.status-strip-inner {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 4vw, 3rem);
  padding-block: 0.35rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.status-strip-inner::-webkit-scrollbar { display: none; }

.status-item {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  white-space: nowrap;
}

.status-key {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}

.status-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--c-white);
}

.status-item--accent .status-value { color: var(--c-yellow); }

/* 搜索面板 */
.search-panel {
  border-top: 1px solid var(--c-line);
  background: var(--c-panel);
}

.search-panel[hidden] { display: none; }

.search-panel-inner { padding-block: 1rem 1.25rem; }

.search-panel-title {
  margin-bottom: 0.75rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}

.search-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.search-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.8rem;
  font-size: 0.85rem;
  color: var(--c-white);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--c-line);
  transition: border-color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}

.search-link:hover {
  color: var(--c-orange);
  border-color: var(--c-orange);
  transform: translateY(-2px);
}

.search-link-key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--c-orange);
}

/* ---------- 7. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(3rem, 8vw, 6rem);
  background: #070C18;
  border-top: 1px solid var(--c-line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(240px, 40%);
  height: 3px;
  background: linear-gradient(90deg, var(--c-orange), var(--c-green));
}

.footer-canvas { padding-block: clamp(2.5rem, 6vw, 4.5rem); }

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.9fr);
  gap: clamp(2rem, 5vw, 4rem);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.footer-note {
  max-width: 34ch;
  color: var(--c-muted);
  font-size: 0.85rem;
  line-height: 1.7;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.footer-col-title {
  margin-bottom: 0.85rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-yellow);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--c-muted);
  transition: color var(--dur-1) var(--ease);
}

.footer-link:hover { color: var(--c-white); }

.footer-contact {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: clamp(2rem, 5vw, 3rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--c-line);
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.contact-key {
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}

.contact-value {
  font-size: 0.9rem;
  color: var(--c-white);
  word-break: break-word;
}

.mono {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.footer-base {
  background: var(--c-ink);
  border-top: 1px solid var(--c-line);
}

.footer-base-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  padding-block: 1.1rem;
}

.footer-meta {
  font-size: 0.78rem;
  color: var(--c-muted);
}

.footer-tag {
  flex: 1 1 auto;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--c-muted);
  opacity: 0.75;
}

.to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  padding: 0.5rem 0.9rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-muted);
  border: 1px solid var(--c-line);
  transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}

.to-top::before { content: "\2191"; font-family: var(--font-mono); }

.to-top:hover {
  color: var(--c-ink);
  background: var(--c-yellow);
  border-color: var(--c-yellow);
}

/* ---------- 8. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.4rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1;
  border: 1px solid transparent;
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease);
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--c-orange);
  color: var(--c-ink);
}

.btn-primary:hover {
  background: var(--c-yellow);
  color: var(--c-ink);
}

.btn-ghost {
  color: var(--c-white);
  border-color: var(--c-line);
}

.btn-ghost:hover {
  color: var(--c-orange);
  border-color: var(--c-orange);
}

/* ---------- 9. 面板与形状 ---------- */
.panel {
  padding: clamp(1rem, 3vw, 1.75rem);
  background: var(--c-panel);
  border: 1px solid var(--c-line);
}

.cut-panel {
  padding: clamp(1rem, 3vw, 1.75rem);
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.cut-panel--accent {
  background: linear-gradient(135deg, rgba(255, 106, 26, 0.16), rgba(18, 27, 46, 0.95));
  border-color: rgba(255, 106, 26, 0.35);
}

.slash-band {
  height: 14px;
  background: repeating-linear-gradient(-45deg, var(--c-orange) 0 10px, transparent 10px 22px);
  opacity: 0.55;
  border: 0;
}

/* ---------- 10. 数据与标签 ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.stat-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  line-height: 1;
  color: var(--c-white);
}

.stat-value--accent { color: var(--c-orange); }

.stat-label {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.65rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-muted);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--c-line);
}

.tag--live {
  color: var(--c-ink);
  background: var(--c-yellow);
  border-color: var(--c-yellow);
}

.tag--done {
  color: var(--c-green);
  border-color: rgba(31, 178, 90, 0.45);
}

/* ---------- 11. 网格 ---------- */
.grid {
  display: grid;
  gap: clamp(1rem, 3vw, 1.75rem);
}

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

/* ---------- 12. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.crumb {
  color: var(--c-muted);
  transition: color var(--dur-1) var(--ease);
}

.crumb:hover { color: var(--c-orange); }

.crumb[aria-current="page"] { color: var(--c-white); }

.breadcrumb-sep { color: var(--c-line); }

/* ---------- 13. 长文 ---------- */
.prose {
  max-width: 68ch;
  color: #D6DEEA;
  font-size: 1rem;
  line-height: 1.75;
}

.prose h2 {
  margin: 2.25rem 0 0.85rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.prose h3 {
  margin: 1.75rem 0 0.6rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.15rem;
  color: var(--c-white);
}

.prose p { margin-bottom: 1.1rem; }

.prose ul {
  margin-bottom: 1.1rem;
}

.prose li {
  position: relative;
  padding-left: 1.15rem;
  margin-bottom: 0.55rem;
}

.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: var(--c-orange);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.prose a {
  color: var(--c-orange);
  border-bottom: 1px solid rgba(255, 106, 26, 0.4);
}

.prose--light {
  max-width: none;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  background: var(--c-paper);
  color: #243149;
  clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
}

.prose--light h2,
.prose--light h3 { color: #0A1020; }

.prose--light li::before { background: #0A1020; }

/* ---------- 14. 图片容器 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--c-panel);
}

.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #121B2E, #0A1020);
}

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

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

.media-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(10, 16, 32, 0) 32%, rgba(10, 16, 32, 0.88));
}

.media-caption {
  margin-top: 0.6rem;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

/* ---------- 15. 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-3) var(--ease), transform var(--dur-3) var(--ease);
}

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

/* ---------- 16. 响应式 ---------- */
@media (max-width: 1080px) {
  .nav-link {
    padding: 0.5rem 0.5rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 1023px) {
  .header-grid {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.6rem;
    padding-block: 0.7rem;
  }

  .nav-cluster {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    background: var(--c-panel);
    border-bottom: 1px solid var(--c-line);
    transition: max-height var(--dur-3) var(--ease), visibility var(--dur-3) linear;
  }

  .site-header[data-open] .nav-cluster {
    max-height: min(72vh, 560px);
    overflow-y: auto;
    visibility: visible;
  }

  .primary-nav {
    display: block;
    padding-block: 0.5rem;
  }

  .nav-list { display: block; }

  .nav-item { border-bottom: 1px solid var(--c-line); }

  .nav-link {
    display: block;
    padding: 1rem var(--gutter);
    font-size: 1rem;
  }

  .nav-link::after { display: none; }

  .nav-link[aria-current="page"] {
    color: var(--c-yellow);
    background: rgba(237, 255, 74, 0.06);
  }

  .nav-cta {
    display: block;
    margin: 1.1rem var(--gutter) 1.25rem;
    padding: 0.9rem 1.25rem;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--c-ink);
    background: var(--c-orange);
    clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  }

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

@media (max-width: 900px) {
  .footer-top { grid-template-columns: minmax(0, 1fr); }
  .footer-nav { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-contact { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
}

@media (max-width: 720px) {
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .brand-line { display: none; }
  .selector-label { display: none; }
  .season-selector { padding-left: 0.6rem; }
}

@media (max-width: 640px) {
  .grid-2,
  .grid-3 { grid-template-columns: minmax(0, 1fr); }

  .brand-sub { display: none; }

  .tool-text { display: none; }

  .nav-toggle-text { display: none; }

  .footer-nav {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.75rem;
  }

  .footer-tag { flex-basis: 100%; order: 3; }

  .to-top { margin-left: 0; }
}

@media (max-width: 420px) {
  .season-track { gap: 0; }
  .season-chip { padding: 0.34rem 0.3rem; font-size: 0.74rem; }
}

/* ---------- 17. Reduced motion ---------- */
@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;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}