/* =========================================================
   鼎利娱乐会馆 · 全站共享样式 /assets/site.css
   门廊 · 厢房 · 迎客台
   ========================================================= */

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

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

body { margin: 0; }

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

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

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

a { color: inherit; }

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

/* ---------- 2. 变量 ---------- */
:root {
  /* 色彩 */
  --ink: #14100E;
  --ink-2: #241C18;
  --sand: #F3E9DA;
  --sand-2: #FBF5EB;
  --gold: #C9A227;
  --gold-light: #E8CE7A;
  --gold-deep: #8C6B14;
  --wine: #5C1A24;
  --wine-light: #8E3A45;
  --jade: #4E8C77;
  --jade-light: #8FBFAB;
  --text: #2A2422;
  --muted: #B9AFA3;

  /* 线条 */
  --line: rgba(201, 162, 39, 0.34);
  --line-soft: rgba(140, 107, 20, 0.18);
  --line-strong: rgba(232, 206, 122, 0.48);

  /* 字体 */
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", SimSun, "Times New Roman", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, "Courier New", monospace;

  /* 尺度 */
  --wrap: 1280px;
  --pad: clamp(16px, 4vw, 40px);
  --header-h: 78px;

  --r-lg: 28px;
  --r-md: 20px;
  --r-sm: 14px;
  --r-pill: 999px;

  --sh-1: 0 6px 24px rgba(20, 16, 14, 0.18);
  --sh-2: 0 14px 36px rgba(20, 16, 14, 0.26);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  padding-top: var(--header-h);
  background-color: var(--sand);
  background-image:
    radial-gradient(120% 70% at 12% 0%, rgba(201, 162, 39, 0.10), transparent 62%),
    radial-gradient(90% 60% at 100% 8%, rgba(92, 26, 36, 0.06), transparent 60%);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.9;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

:focus-visible {
  outline: 2px solid var(--jade);
  outline-offset: 2px;
  border-radius: 4px;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.14;
}

.page-title {
  font-size: clamp(38px, 7vw, 84px);
  line-height: 1.05;
  margin: 0 0 0.4em;
}

.section-title {
  font-size: clamp(26px, 3.4vw, 46px);
  line-height: 1.18;
  margin: 0 0 0.5em;
}

.section-sub {
  font-size: clamp(19px, 2.1vw, 26px);
  font-family: var(--font-serif);
  font-weight: 600;
  margin: 0 0 0.5em;
}

.lede {
  max-width: 34em;
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.9;
  color: var(--text);
}

.numeral {
  font-family: var(--font-mono);
  font-size: 0.94em;
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
  color: var(--gold-deep);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  margin: 0 0 1em;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--gold);
}

/* ---------- 4. 容器与分区 ---------- */
.container {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section {
  position: relative;
  padding-block: clamp(56px, 8.5vw, 118px);
}

.section--tight { padding-block: clamp(36px, 5vw, 68px); }
.section--sand { background: var(--sand); }
.section--dark { background: var(--ink); color: var(--sand); }
.section--deep { background: var(--ink-2); color: var(--sand); }

.section--dark .eyebrow,
.section--deep .eyebrow { color: var(--gold-light); }

.section--dark .lede,
.section--deep .lede { color: rgba(243, 233, 218, 0.82); }

.section--dark .numeral,
.section--deep .numeral { color: var(--gold-light); }

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

.divider-lattice {
  height: 14px;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 14px);
  opacity: 0.7;
}

.prose { max-width: 34em; }
.prose p { margin: 0 0 1.15em; }
.prose h2, .prose h3 { margin: 1.7em 0 0.55em; }
.prose ul, .prose ol { list-style: disc; padding-left: 1.25em; margin: 0 0 1.2em; }
.prose ol { list-style: decimal; }
.prose li { margin-bottom: 0.35em; }
.prose a { color: var(--gold-deep); text-underline-offset: 3px; }

/* ---------- 5. 分屏与 Bento ---------- */
.split {
  display: grid;
  grid-template-columns: 11fr 9fr;
  gap: clamp(24px, 4vw, 60px);
  align-items: center;
}

.split--flip { direction: rtl; }
.split--flip > * { direction: ltr; }

.split__media { min-width: 0; }

.bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(14px, 1.8vw, 24px);
}

.bento__block { grid-column: span 4; min-width: 0; }
.bento__block--half { grid-column: span 6; }
.bento__block--wide { grid-column: span 8; }
.bento__block--full { grid-column: span 12; }
.bento__block--focus { grid-column: span 5; grid-row: span 2; }
.bento__block--tall { grid-row: span 2; }

/* ---------- 6. 卡片 / 标签 ---------- */
.card {
  position: relative;
  padding: clamp(20px, 2.4vw, 32px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--sand-2);
  box-shadow: var(--sh-1);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease);
}

.card:hover,
.card:focus-within {
  transform: translateY(-2px);
  border-color: var(--line);
  box-shadow: var(--sh-2);
}

.card--dark {
  background: var(--ink-2);
  border-color: var(--line);
  color: var(--sand);
}

.card--wine {
  background: linear-gradient(160deg, var(--wine), #43121B);
  border-color: rgba(232, 206, 122, 0.32);
  color: #F6E7D8;
}

.card__title {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.1vw, 26px);
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 0.5em;
}

.card__meta {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold-deep);
}

.card--dark .card__meta,
.card--wine .card__meta { color: var(--gold-light); }

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.34em 0.95em;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(201, 162, 39, 0.08);
  color: var(--gold-deep);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.7;
  white-space: nowrap;
}

.tag--gold { background: var(--gold); border-color: var(--gold-deep); color: var(--ink); }
.tag--wine { background: var(--wine); border-color: transparent; color: #F3E1D4; }
.tag--jade { background: rgba(78, 140, 119, 0.12); border-color: rgba(78, 140, 119, 0.42); color: var(--jade); }

/* ---------- 7. 图片容器 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-2);
  box-shadow: var(--sh-1);
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s var(--ease);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(90% 70% at 78% 8%, rgba(232, 206, 122, 0.22), transparent 60%),
    linear-gradient(180deg, transparent 55%, rgba(20, 16, 14, 0.42));
}

.media-frame:hover img { transform: scale(1.02); }

.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--1x1 { aspect-ratio: 1 / 1; }

.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 14px 20px;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sand);
}

/* ---------- 8. 步骤折叠卡 ---------- */
.step-card {
  padding: clamp(20px, 2.4vw, 30px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--sand-2);
  box-shadow: var(--sh-1);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease);
}

.step-card:hover { transform: translateY(-2px); border-color: var(--line); box-shadow: var(--sh-2); }

.step-card[data-expanded="true"] { border-color: var(--line); }

.step-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  width: 100%;
  padding: 0;
  text-align: left;
  cursor: pointer;
}

.step-index {
  flex: 0 0 auto;
  color: var(--muted);
  transition: color 0.3s var(--ease);
}

.step-card.is-in .step-index,
.step-card[data-expanded="true"] .step-index { color: var(--gold); }

.step-title {
  flex: 1 1 auto;
  font-family: var(--font-serif);
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 600;
  line-height: 1.35;
}

.step-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.26s var(--ease);
}

.step-card[data-expanded="true"] .step-body { grid-template-rows: 1fr; }

.step-body__inner {
  overflow: hidden;
  min-height: 0;
  font-size: 16px;
  color: rgba(42, 36, 34, 0.86);
}

.step-card[data-expanded="true"] .step-body__inner { padding-top: 14px; }

/* ---------- 9. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55em;
  padding: 0.8em 1.5em;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.5;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease),
              background-color 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.btn:hover { transform: translateY(-2px); box-shadow: var(--sh-1); }
.btn:active { transform: translateY(0); }

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

.btn--jade { background: var(--jade); border-color: var(--jade); color: #FFFFFF; }
.btn--jade:hover { background: #427862; }

.btn--ghost { background: transparent; border-color: var(--line-strong); color: var(--gold-light); }
.btn--ghost:hover { background: rgba(232, 206, 122, 0.12); color: var(--gold-light); }

.btn--quiet { background: transparent; border-color: var(--line-soft); color: var(--gold-deep); }
.btn--quiet:hover { border-color: var(--gold-deep); }

/* ---------- 10. 表单（页面阶段使用，仅前端格式提示） ---------- */
.field { display: block; margin-bottom: 20px; }

.field__label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
}

.field__input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background: var(--sand-2);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.field__input:focus {
  border-color: var(--jade);
  box-shadow: 0 0 0 3px rgba(78, 140, 119, 0.18);
  outline: none;
}

.field__hint {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.field__hint[data-state="warn"] { color: var(--wine-light); }
.field__hint[data-state="ok"] { color: var(--jade); }

/* ---------- 11. 面包屑 ---------- */
.breadcrumbs {
  font-size: 14px;
  color: var(--gold-deep);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
  align-items: center;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.5em;
  color: var(--line);
}

.breadcrumbs a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease);
}

.breadcrumbs a:hover { border-bottom-color: var(--line); }

.section--dark .breadcrumbs,
.section--deep .breadcrumbs { color: var(--gold-light); }

/* ---------- 12. 滚动进度与显现 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 2px;
  z-index: 70;
  background: rgba(201, 162, 39, 0.12);
  pointer-events: none;
}

.scroll-progress span {
  display: block;
  height: 100%;
  transform: scaleY(var(--sp, 0));
  transform-origin: top center;
  background: linear-gradient(180deg, var(--gold-light), var(--gold));
  transition: transform 0.1s linear;
}

html.js-ready [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.26s var(--ease), transform 0.26s var(--ease);
}

html.js-ready [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 13. 右侧刻度锚点 ---------- */
.anchor-rail {
  position: fixed;
  top: 50%;
  right: 16px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transform: translateY(-50%);
}

.anchor-rail__link {
  position: relative;
  display: block;
  width: 26px;
  height: 2px;
  border-radius: 2px;
  background: rgba(140, 107, 20, 0.35);
  transition: width 0.2s var(--ease), background-color 0.2s var(--ease);
}

.anchor-rail__link:hover,
.anchor-rail__link[aria-current="true"] {
  width: 38px;
  background: var(--gold);
}

.anchor-rail__name {
  position: absolute;
  top: 50%;
  right: calc(100% + 10px);
  transform: translateY(-50%) translateX(4px);
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--ink-2);
  color: var(--gold-light);
  font-size: 12px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
}

.anchor-rail__link:hover .anchor-rail__name,
.anchor-rail__link:focus-visible .anchor-rail__name {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
}

/* ---------- 14. 头部 ---------- */
.skip-link {
  position: absolute;
  top: -70px;
  left: 14px;
  z-index: 200;
  padding: 10px 20px;
  border-radius: var(--r-pill);
  background: var(--gold);
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: top 0.2s var(--ease);
}

.skip-link:focus { top: 12px; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  height: var(--header-h);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  border-bottom: 1px solid transparent;
  background: linear-gradient(180deg, rgba(20, 16, 14, 0.93), rgba(20, 16, 14, 0.62));
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.site-header[data-condensed="true"]::before {
  background: rgba(20, 16, 14, 0.97);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 26px rgba(20, 16, 14, 0.36);
}

.header-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(16px, 4vw, 64px);
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}

/* 品牌门牌 */
.brand-plaque {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 7px 20px 7px 10px;
  border: 1px solid var(--wine);
  border-radius: var(--r-pill);
  background: linear-gradient(140deg, #E0BC45, var(--gold) 45%, #B8901C);
  color: var(--ink);
  text-decoration: none;
  box-shadow: 0 5px 18px rgba(20, 16, 14, 0.42);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.brand-plaque:hover {
  transform: translateY(-2px);
  box-shadow: var(--sh-2);
}

.brand-plaque__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--wine);
  color: var(--gold-light);
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  line-height: 1;
}

.brand-plaque__text { display: flex; flex-direction: column; }

.brand-plaque__name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.25;
}

.brand-plaque__sub {
  font-size: 11px;
  letter-spacing: 0.16em;
  line-height: 1.5;
  color: #4A3A0C;
}

/* 移动门牌按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  color: var(--gold-light);
  font-size: 13px;
  letter-spacing: 0.18em;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.nav-toggle:hover { background: rgba(232, 206, 122, 0.12); transform: translateY(-2px); }

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 18px;
  height: 14px;
}

.nav-toggle__bars span {
  display: block;
  height: 1px;
  background: currentColor;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.site-header[data-open="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* 栏目门楣 */
.site-nav { margin-left: auto; }

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(4px, 1vw, 14px);
}

.nav-link {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 9px 15px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  color: var(--sand);
  font-size: 15px;
  line-height: 1.4;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease),
              background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.nav-link__label { display: block; white-space: nowrap; }

.nav-link__note {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  padding: 5px 13px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--ink-2);
  color: var(--gold-light);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1.7;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
}

.nav-link:hover,
.nav-link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  color: var(--gold-light);
}

.nav-link:hover .nav-link__note,
.nav-link:focus-visible .nav-link__note {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-link[aria-current="page"] {
  background: var(--gold);
  border-color: var(--gold-deep);
  color: var(--ink);
}

.nav-link[aria-current="page"]:hover { color: var(--ink); }

/* ---------- 15. 页脚 ---------- */
.site-footer {
  position: relative;
  padding-block: clamp(52px, 7vw, 92px) 30px;
  border-top: 1px solid var(--line);
  background: var(--ink-2);
  color: var(--sand);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 130px;
  pointer-events: none;
  background: radial-gradient(120% 100% at 50% 0, rgba(201, 162, 39, 0.18), transparent 70%);
}

.footer-inner {
  position: relative;
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.4fr 1fr 1fr;
  gap: clamp(24px, 3vw, 52px);
}

.footer-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }

.footer-brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--gold-deep);
  border-radius: var(--r-sm);
  background: linear-gradient(140deg, #E0BC45, var(--gold) 50%, #B8901C);
  color: var(--wine);
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
}

.footer-brand__name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.footer-brand__line {
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--gold-light);
}

.footer-brand__meta {
  max-width: 22em;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

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

.footer-col__title {
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--gold-light);
}

.contact-list { display: flex; flex-direction: column; gap: 16px; }

.contact-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}

.contact-label {
  flex: 0 0 100%;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.contact-value {
  font-size: 15px;
  line-height: 1.7;
  color: var(--sand);
  word-break: break-all;
}

.contact-value--mono {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

.copy-btn {
  padding: 3px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  color: var(--gold-light);
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 1.7;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.copy-btn:hover { background: rgba(232, 206, 122, 0.14); }

.copy-btn[data-copied="true"] {
  border-color: var(--jade-light);
  color: var(--jade-light);
}

.copy-btn[data-copied="false"] {
  border-color: var(--wine-light);
  color: #E9B7B7;
}

.footer-note {
  margin-top: 18px;
  max-width: 30em;
  font-size: 13px;
  line-height: 1.95;
  color: var(--muted);
}

.footer-nav-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
}

.footer-nav-link {
  display: inline-block;
  padding: 2px 0;
  font-size: 15px;
  text-decoration: none;
  color: var(--sand);
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.footer-nav-link:hover {
  color: var(--gold-light);
  border-bottom-color: var(--line-strong);
}

.footer-legal {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
}

.footer-legal__link {
  display: inline-block;
  font-size: 15px;
  text-decoration: none;
  color: var(--sand);
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.footer-legal__link:hover {
  color: var(--gold-light);
  border-bottom-color: var(--line-strong);
}

.footer-cta { width: 100%; max-width: 220px; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: clamp(36px, 5vw, 60px);
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.footer-copy, .footer-icp { margin: 0; }

.footer-icp { font-family: var(--font-mono); }

/* 左下常驻回门廊 */
.back-hall {
  position: fixed;
  left: var(--pad);
  bottom: 22px;
  z-index: 75;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 9px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  background: rgba(20, 16, 14, 0.55);
  color: var(--gold-light);
  font-size: 14px;
  letter-spacing: 0.1em;
  text-decoration: none;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease),
              color 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.back-hall:hover { transform: translateY(-2px); border-color: var(--gold-light); }

.back-hall[data-solid="true"] {
  background: var(--gold);
  border-color: var(--gold-deep);
  color: var(--ink);
  box-shadow: var(--sh-1);
}

/* ---------- 16. 平板 ---------- */
@media (max-width: 1023px) {
  :root { --header-h: 68px; }

  body { font-size: 16.5px; }

  .split { grid-template-columns: 1fr; }

  .split--flip { direction: ltr; }

  .bento__block,
  .bento__block--half,
  .bento__block--wide,
  .bento__block--focus {
    grid-column: span 6;
    grid-row: auto;
  }

  .bento__block--full { grid-column: span 12; }
  .bento__block--tall { grid-row: auto; }

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

  .anchor-rail { display: none; }

  /* 移动导航 */
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    top: 100%;
    left: var(--pad);
    right: var(--pad);
    margin: 8px 0 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    background: rgba(20, 16, 14, 0.97);
    box-shadow: var(--sh-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
  }

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

  .nav-list {
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 6px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .nav-item { flex: 0 0 auto; scroll-snap-align: start; }

  .nav-link {
    flex-direction: row;
    align-items: center;
    padding: 9px 16px;
    border-color: rgba(232, 206, 122, 0.34);
    background: rgba(36, 28, 24, 0.9);
    color: var(--gold-light);
    white-space: nowrap;
  }

  .nav-link__note { display: none; }

  .nav-link[aria-current="page"] { background: var(--gold); color: var(--ink); }
}

/* ---------- 17. 手机 ---------- */
@media (max-width: 639px) {
  body { font-size: 16px; line-height: 1.85; }

  .brand-plaque { padding: 6px 14px 6px 8px; gap: 9px; }
  .brand-plaque__mark { width: 30px; height: 30px; font-size: 17px; }
  .brand-plaque__name { font-size: 16px; }
  .brand-plaque__sub { display: none; }

  .bento__block,
  .bento__block--half,
  .bento__block--wide,
  .bento__block--focus,
  .bento__block--full {
    grid-column: span 12;
    grid-row: auto;
  }

  .footer-grid { grid-template-columns: 1fr; }

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

  .footer-cta { max-width: none; }

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

  .back-hall { bottom: 16px; padding: 8px 15px; font-size: 13px; }

  .step-head { flex-wrap: wrap; }
}

/* ---------- 18. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  html.js-ready [data-reveal] { opacity: 1; transform: none; }

  .scroll-progress span { transition: none; }
}