/* =========================================================
   威利斯人棋牌 · 共享外壳样式  /assets/site.css
   视觉母题：深夜牌桌 × 复古电玩厅 × 山城霓虹
   ========================================================= */

/* ---------- 01 基础重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

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

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

img, svg, picture { 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%; }

/* ---------- 02 设计令牌 ---------- */
:root {
  --ink: #040d0c;
  --ink-2: #071614;
  --ink-3: #0b211d;
  --jade: #123a31;
  --jade-soft: #1c5a4c;
  --violet: #150d29;
  --violet-2: #231546;
  --champagne: #dcb46c;
  --champagne-2: #f2dcae;
  --champagne-deep: #a5762a;
  --neon: #4ff2d4;
  --amber: #ff9042;
  --paper: #f5f0e6;
  --paper-2: #c9c2b4;
  --paper-3: #8b877d;
  --line: rgba(220, 180, 108, 0.2);
  --line-strong: rgba(220, 180, 108, 0.44);
  --card-bg: linear-gradient(165deg, rgba(18, 58, 49, 0.55), rgba(21, 13, 41, 0.62));
  --shadow-lg: 0 34px 80px -44px rgba(0, 0, 0, 0.95);
  --radius-s: 10px;
  --radius-m: 18px;
  --radius-l: 28px;
  --shell: 1240px;
  --header-h: 68px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
    system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui,
    -apple-system, "Segoe UI", sans-serif;
}

/* ---------- 03 页面基调与中文排版 ---------- */
body {
  min-height: 100vh;
  color: var(--paper);
  background-color: var(--ink);
  background-image:
    radial-gradient(120% 78% at 88% -12%, rgba(79, 242, 212, 0.14), transparent 62%),
    radial-gradient(92% 70% at 2% 0%, rgba(220, 180, 108, 0.12), transparent 56%),
    radial-gradient(110% 90% at 50% 112%, rgba(35, 21, 70, 0.9), transparent 66%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 46%, #050f0e 100%);
  background-attachment: fixed;
  font-family: var(--font-sans);
  font-size: clamp(15px, 0.5vw + 13.7px, 17px);
  line-height: 1.85;
  letter-spacing: 0.012em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

h1 { font-size: clamp(2.1rem, 5vw, 3.9rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.42rem); }
h4 { font-size: 1.02rem; }

p { color: var(--paper-2); }

::selection { background: rgba(79, 242, 212, 0.32); color: #06110f; }

.metal {
  background: linear-gradient(180deg, #fff6e4 4%, var(--champagne) 46%, #8d6a2c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-stroke: 0.6px rgba(255, 255, 255, 0.16);
}

/* ---------- 04 布局容器 ---------- */
.shell {
  width: min(var(--shell), 100% - 2.6rem);
  margin-inline: auto;
}

.container-narrow { width: min(760px, 100%); margin-inline: auto; }
.container-wide { width: min(1400px, 100%); margin-inline: auto; }

.section { position: relative; padding-block: clamp(3rem, 7vw, 6.4rem); }
.section--tight { padding-block: clamp(1.8rem, 4vw, 3.2rem); }

.section-head { display: grid; gap: 0.9rem; margin-bottom: clamp(1.6rem, 3vw, 2.6rem); }

.section-head--split {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.4rem;
}

.section-title { font-size: clamp(1.6rem, 3vw, 2.6rem); }
.section-note { font-size: 0.86rem; color: var(--paper-3); max-width: 46ch; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.7rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: rgba(220, 180, 108, 0.84);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.lede {
  max-width: 60ch;
  font-size: clamp(1rem, 1.3vw, 1.16rem);
  line-height: 1.95;
  color: var(--paper-2);
}

.rule {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, var(--line-strong), transparent);
}

.prose { max-width: 68ch; }
.prose p + p { margin-top: 1.1em; }
.prose h2, .prose h3 { margin-top: 2em; margin-bottom: 0.6em; }
.prose ul { margin: 1em 0; display: grid; gap: 0.5rem; }
.prose ul li { position: relative; padding-left: 1.2rem; color: var(--paper-2); }
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--champagne);
  transform: rotate(45deg);
}

.note {
  padding-left: 1rem;
  border-left: 2px solid var(--line-strong);
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--paper-3);
}

.grid { display: grid; gap: clamp(1rem, 2vw, 1.6rem); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 258px), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 198px), 1fr)); }

.blob {
  position: absolute;
  border-radius: 58% 42% 47% 53% / 49% 55% 45% 51%;
  background: radial-gradient(circle at 34% 30%, rgba(79, 242, 212, 0.18), rgba(21, 13, 41, 0) 68%);
  filter: blur(2px);
  pointer-events: none;
}

.blob--gold {
  background: radial-gradient(circle at 60% 40%, rgba(220, 180, 108, 0.2), rgba(4, 13, 12, 0) 70%);
}

#main-content {
  display: block;
  scroll-margin-top: calc(var(--header-h) + 44px);
}

#main-content:focus-visible {
  outline: 2px dashed var(--neon);
  outline-offset: -10px;
}

/* ---------- 05 跳转链接 ---------- */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -120px;
  z-index: 200;
  padding: 0.72rem 1.2rem;
  border-radius: 0 0 14px 14px;
  background: var(--champagne);
  color: #07100e;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: top 0.22s ease;
}

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

/* ---------- 06 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: linear-gradient(180deg, rgba(4, 13, 12, 0.97), rgba(4, 13, 12, 0.88));
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--champagne), transparent);
  opacity: 0.5;
  pointer-events: none;
}

.header-rail {
  background: linear-gradient(90deg, rgba(35, 21, 70, 0.62), rgba(4, 13, 12, 0.16) 68%);
  border-bottom: 1px solid rgba(220, 180, 108, 0.14);
}

.rail-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  min-height: 30px;
  font-size: 0.66rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(220, 180, 108, 0.72);
  white-space: nowrap;
  overflow: hidden;
}

.rail-tag { color: var(--neon); opacity: 0.9; }
.rail-note { color: rgba(201, 194, 180, 0.66); }
.rail-note--alt { color: rgba(255, 144, 66, 0.7); }

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
  min-height: var(--header-h);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  padding: 0.35rem 0;
  flex: 0 0 auto;
}

.brand-chip {
  position: relative;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: 11px;
  background: linear-gradient(145deg, var(--champagne-2), var(--champagne) 42%, #8a6427 100%);
  transform: rotate(45deg);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22), 0 12px 26px -14px rgba(220, 180, 108, 0.95);
}

.brand-chip-dot {
  position: absolute;
  inset: 9px;
  border-radius: 6px;
  background: var(--ink-2);
}

.brand-chip-dot::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 3px;
  background: var(--neon);
  opacity: 0.85;
  box-shadow: 0 0 12px rgba(79, 242, 212, 0.8);
}

.brand-text { display: grid; gap: 0.05rem; }

.brand-name {
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1.25;
  color: var(--paper);
}

.brand-sub {
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(220, 180, 108, 0.72);
  line-height: 1.4;
}

/* 导航 */
.site-nav { display: flex; align-items: center; }

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.35rem, 1.3vw, 1.5rem);
  counter-reset: nav;
}

.nav-item { display: block; }

.nav-link {
  position: relative;
  display: block;
  padding: 0.5rem 0.38rem 0.62rem;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--paper-2);
  transition: color 0.25s ease;
}

.nav-link::before {
  counter-increment: nav;
  content: counter(nav, decimal-leading-zero);
  display: block;
  font-size: 0.58rem;
  letter-spacing: 0.24em;
  color: rgba(79, 242, 212, 0.55);
  transition: color 0.25s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.38rem;
  right: 0.38rem;
  bottom: 0.3rem;
  height: 1px;
  background: linear-gradient(90deg, var(--champagne), var(--neon));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s ease;
}

.nav-link:hover { color: var(--paper); }
.nav-link:hover::before { color: var(--amber); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] { color: var(--champagne-2); }
.nav-link[aria-current="page"]::before { color: var(--neon); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(79, 242, 212, 0.06);
  color: var(--champagne-2);
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.nav-toggle:hover { border-color: var(--neon); background: rgba(79, 242, 212, 0.14); }

.nav-toggle-box { display: grid; gap: 4px; width: 16px; }

.nav-toggle-box span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.3s ease;
}

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

.nav-toggle-text { line-height: 1; }

/* 滚动进度 */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  background: rgba(220, 180, 108, 0.12);
  pointer-events: none;
}

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

/* 抽屉遮罩 */
.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 60;
  opacity: 0;
  pointer-events: none;
  background:
    radial-gradient(80% 60% at 82% 18%, rgba(79, 242, 212, 0.1), transparent 62%),
    rgba(4, 13, 12, 0.84);
  transition: opacity 0.35s ease;
}

body[data-nav-open] .nav-scrim { opacity: 1; pointer-events: auto; }
body[data-nav-open] { overflow: hidden; }

/* ---------- 07 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(3rem, 8vw, 7rem);
  overflow: hidden;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(21, 13, 41, 0.94) 0%, rgba(4, 13, 12, 0.98) 48%, #030a09 100%);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, rgba(220, 180, 108, 0.06) 0 1px, transparent 1px 14px);
  pointer-events: none;
}

.footer-glow {
  position: absolute;
  top: -34%;
  right: -14%;
  width: min(70vw, 620px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 42% 42%, rgba(79, 242, 212, 0.2), transparent 66%);
  pointer-events: none;
}

.footer-shell {
  position: relative;
  display: grid;
  grid-template-columns: 1.5fr 0.7fr 0.7fr 1.05fr;
  gap: clamp(1.6rem, 3vw, 3rem);
  padding-block: clamp(2.6rem, 6vw, 4.6rem) clamp(1.6rem, 3vw, 2.4rem);
}

.footer-lead { display: grid; gap: 0.9rem; align-content: start; }

.brand--footer { margin-bottom: 0.2rem; }

.footer-kicker {
  font-size: 0.68rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: rgba(79, 242, 212, 0.75);
}

.footer-title {
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  line-height: 1.4;
}

.footer-text {
  max-width: 44ch;
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--paper-3);
}

.footer-cta { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 0.3rem; }

.footer-col { display: grid; gap: 0.9rem; align-content: start; }

.footer-col-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(220, 180, 108, 0.82);
}

.footer-list { display: grid; gap: 0.1rem; }

.footer-list a {
  display: inline-block;
  padding: 0.32rem 0;
  font-size: 0.92rem;
  color: var(--paper-2);
  border-bottom: 1px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease, padding-left 0.25s ease;
}

.footer-list a:hover {
  color: var(--champagne-2);
  border-color: var(--line-strong);
  padding-left: 0.3rem;
}

.footer-list a[aria-current="page"] { color: var(--champagne); }

.footer-meta { display: grid; gap: 0.9rem; }

.footer-meta li { display: grid; gap: 0.15rem; }

.meta-label {
  font-size: 0.62rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(79, 242, 212, 0.7);
}

.meta-value {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--paper-2);
  overflow-wrap: anywhere;
}

.footer-note {
  margin-top: 0.2rem;
  padding-left: 0.9rem;
  border-left: 2px solid var(--line-strong);
  font-size: 0.78rem;
  line-height: 1.85;
  color: var(--paper-3);
}

.footer-base {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem 1.4rem;
  padding-block: 1.05rem 2rem;
  border-top: 1px solid rgba(220, 180, 108, 0.16);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--paper-3);
}

.footer-icp { color: rgba(220, 180, 108, 0.7); }

/* ---------- 08 按钮与标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.78rem 1.5rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease,
    border-color 0.25s ease, box-shadow 0.25s ease;
}

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

.btn--primary {
  background: linear-gradient(135deg, var(--champagne-2), var(--champagne) 46%, var(--champagne-deep));
  color: #0a1512;
  box-shadow: 0 18px 40px -22px rgba(220, 180, 108, 0.9);
}

.btn--ghost {
  background: rgba(79, 242, 212, 0.05);
  border-color: var(--line-strong);
  color: var(--champagne-2);
}

.btn--ghost:hover {
  background: rgba(79, 242, 212, 0.14);
  border-color: var(--neon);
  color: var(--paper);
}

.btn--neon {
  background: linear-gradient(135deg, var(--neon), #1fae95);
  color: #04120f;
}

.btn--sm { padding: 0.55rem 1.05rem; font-size: 0.8rem; }

.tag-list { display: flex; flex-wrap: wrap; gap: 0.45rem; }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.78rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(4, 13, 12, 0.42);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--paper-2);
}

.tag--gold { color: var(--champagne); border-color: var(--line-strong); }
.tag--neon { color: var(--neon); border-color: rgba(79, 242, 212, 0.35); }

.badge {
  display: inline-grid;
  place-items: center;
  min-width: 2.6rem;
  padding: 0.35rem 0.6rem;
  border-radius: 10px;
  background: linear-gradient(140deg, rgba(242, 220, 174, 0.95), rgba(147, 102, 33, 0.9));
  color: #08120f;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

/* ---------- 09 卡片 / 数据 / 目录 ---------- */
.card {
  position: relative;
  display: grid;
  gap: 0.7rem;
  padding: clamp(1.2rem, 2.2vw, 1.7rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--card-bg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--champagne), transparent);
}

.card:hover { transform: translateY(-3px); border-color: var(--line-strong); }

.card-title { font-size: 1.1rem; font-weight: 800; }
.card-text { font-size: 0.92rem; line-height: 1.85; color: var(--paper-2); }

.card-meta {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(79, 242, 212, 0.7);
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 1px;
  border-radius: var(--radius-m);
  background: var(--line);
  overflow: hidden;
}

.stat { display: grid; gap: 0.4rem; padding: 1.2rem; background: rgba(7, 22, 20, 0.92); }

.stat-value {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1;
  color: var(--champagne-2);
}

.stat-label {
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--paper-3);
}

.index-list { display: grid; border-top: 1px solid var(--line); }

.index-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: baseline;
  padding: 1rem 0.2rem;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s ease, padding-left 0.25s ease;
}

.index-item:hover {
  padding-left: 0.8rem;
  background: linear-gradient(90deg, rgba(79, 242, 212, 0.07), transparent);
}

.index-num { font-size: 0.72rem; letter-spacing: 0.2em; color: rgba(79, 242, 212, 0.72); }
.index-title { font-size: 1.02rem; font-weight: 700; color: var(--paper); }
.index-meta { font-size: 0.74rem; letter-spacing: 0.12em; color: var(--paper-3); }

/* ---------- 10 影像容器基础规则 ---------- */
.media-frame {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: linear-gradient(150deg, #0d241f, var(--violet) 58%, var(--ink));
}

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

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 52%, rgba(4, 13, 12, 0.78));
  pointer-events: none;
}

.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--strip { aspect-ratio: 21 / 9; }
.media-frame--tilt { transform: rotate(-1.4deg); }
.media-frame--organic { border-radius: 64px 22px 64px 22px; }

.media-frame__caption {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0.85rem;
  z-index: 2;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: rgba(245, 240, 230, 0.84);
}

/* ---------- 11 面包屑与筛选 ---------- */
.breadcrumb { padding-top: clamp(1.1rem, 3vw, 2rem); }

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--paper-3);
}

.breadcrumb-item { display: inline-flex; align-items: center; }

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 0.5rem;
  color: rgba(220, 180, 108, 0.5);
}

.breadcrumb-item a { color: var(--paper-2); }
.breadcrumb-item a:hover { color: var(--champagne-2); }
.breadcrumb-item [aria-current="page"] { color: var(--champagne); }

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(11, 33, 29, 0.55);
}

.filter-btn {
  padding: 0.5rem 1.05rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--paper-2);
  transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease,
    box-shadow 0.25s ease, transform 0.25s ease;
}

.filter-btn:hover { color: var(--paper); border-color: var(--line-strong); }

.filter-btn[aria-pressed="true"] {
  background: linear-gradient(140deg, var(--champagne-2), var(--champagne) 52%, var(--champagne-deep));
  color: #0a1412;
  box-shadow: 0 12px 30px -16px rgba(220, 180, 108, 0.95);
}

.filter-status {
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--paper-3);
}

[data-filter-item][hidden] { display: none; }

/* ---------- 12 焦点与动效 ---------- */
:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
  border-radius: 4px;
}

.has-js .reveal {
  opacity: 0;
  transform: translateY(22px) rotate(0.4deg);
  transition: opacity 0.72s ease, transform 0.72s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.has-js .reveal.is-visible { opacity: 1; transform: none; }

/* ---------- 13 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-shell { grid-template-columns: 1fr 1fr; }
  .footer-lead { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .header-bar { flex-wrap: wrap; gap: 0.6rem; }
  .site-nav { width: 100%; overflow-x: auto; scrollbar-width: none; }
  .site-nav::-webkit-scrollbar { display: none; }
  .nav-list { flex-wrap: nowrap; gap: 1rem; padding-bottom: 0.35rem; }
  .nav-toggle { display: none; }
  .nav-scrim { display: none; }

  .has-js .header-bar { flex-wrap: nowrap; }
  .has-js .nav-toggle { display: inline-flex; }

  .has-js .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 70;
    width: min(84vw, 340px);
    height: 100vh;
    height: 100dvh;
    display: block;
    padding: 5.6rem 1.5rem 2.4rem;
    overflow-y: auto;
    border-left: 1px solid var(--line-strong);
    background: linear-gradient(200deg, rgba(35, 21, 70, 0.99), rgba(4, 13, 12, 0.99));
    box-shadow: -30px 0 70px -30px rgba(0, 0, 0, 0.95);
    transform: translateX(102%);
    transition: transform 0.42s cubic-bezier(0.22, 0.61, 0.36, 1);
  }

  .has-js .site-nav[data-open] { transform: translateX(0); }

  .has-js .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-bottom: 0;
    counter-reset: nav;
  }

  .has-js .nav-link {
    padding: 1.05rem 0.2rem;
    border-bottom: 1px solid rgba(220, 180, 108, 0.14);
    font-size: 1.08rem;
  }

  .has-js .nav-link::before {
    display: inline-block;
    margin-right: 0.7rem;
    vertical-align: 0.12em;
  }

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

@media (max-width: 720px) {
  .shell { width: min(var(--shell), 100% - 1.9rem); }
  .header-rail { display: none; }

  .filter-bar { border-radius: var(--radius-m); }
  .section-head--split { align-items: flex-start; }
  .footer-base { justify-content: flex-start; }
}

@media (max-width: 620px) {
  .footer-shell { grid-template-columns: 1fr; }
  .btn { width: 100%; justify-content: center; }
  .footer-cta { flex-direction: column; align-items: stretch; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .has-js .reveal { opacity: 1; transform: none; }
  .btn:hover, .card:hover, .media-frame--tilt { transform: none; }
}