/* ==========================================================================
   RICHARD MILLE 风格 · 男士腕表 H5 落地页
   原生 CSS3 — 无任何预处理器 / 框架依赖
   设计基调：深夜制表工坊 · 黑金暗黑奢华（详见 DESIGN.md）
   ========================================================================== */

/* ------------------------- 1. 设计变量 & Reset ------------------------- */
:root {
  --bg: #050505;            /* 深渊黑：黑色橡胶表带 / 碳纤维表壳 */
  --bg-elev: #0b0b0b;       /* 浮起表面：暗房展台 */
  --fg: #ffffff;            /* 高对比纯白：白金刻字 */
  --muted: #888888;         /* 雾面金属灰 */
  --gold: #c9a962;          /* 5N 红金：机芯齿轮与表冠 */
  --gold-soft: rgba(201, 169, 98, 0.55);
  --line: rgba(255, 255, 255, 0.08);   /* 暗房细白线 */
  --line-strong: rgba(255, 255, 255, 0.16);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);  /* 丝滑缓出：奢华阻尼感 */
  --dur: 0.6s;

  --header-h: 64px;
  --page-x: clamp(20px, 5vw, 72px);
  --radius-pill: 999px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  overscroll-behavior-y: none;
}

/* 菜单/弹窗打开时的滚动锁定（iOS 由 JS 以 fixed 方案处理） */
body.is-locked {
  overflow: hidden;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  touch-action: manipulation;
}

a {
  color: inherit;
  text-decoration: none;
  -webkit-touch-callout: none;
}

ul {
  list-style: none;
}

::selection {
  background: var(--gold);
  color: #050505;
}

/* 超细字距标签：暗房里的铭牌 */
.fine-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ------------------------- 2. Header ------------------------- */
.site-header {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 60;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: var(--header-h);
  padding: 0 var(--page-x);
  background: linear-gradient(to bottom, rgba(5, 5, 5, 0.92), rgba(5, 5, 5, 0.72));
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.hamburger {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
}

.hamburger-lines {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  width: 20px;
}

.hamburger-lines i {
  height: 1px;
  background: var(--fg);
  transition: transform 0.45s var(--ease), width 0.45s var(--ease);
}

.hamburger:hover .hamburger-lines i:nth-child(2) {
  width: 70%;
}

.hamburger-text {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg);
}

.logo {
  font-size: clamp(14px, 2.6vw, 19px);
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  white-space: nowrap;
}

.header-actions {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: clamp(10px, 2vw, 22px);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--fg);
  opacity: 0.85;
  transition: opacity 0.3s var(--ease), color 0.3s var(--ease);
}

.icon-btn:hover {
  opacity: 1;
  color: var(--gold);
}

/* 文字型按钮：搜索 / 腕表系列（官网右上纯白微淡文字） */
.text-btn,
.series-link {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--fg);
  opacity: 0.82;
  transition: opacity 0.3s var(--ease), color 0.3s var(--ease);
  white-space: nowrap;
}

.text-btn:hover,
.series-link:hover {
  opacity: 1;
  color: var(--gold);
}

/* 语言选择器 */
.lang-select {
  position: relative;
}

.lang-trigger {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  letter-spacing: 0.18em;
  padding: 8px 2px;
  color: var(--fg);
  opacity: 0.9;
  transition: opacity 0.3s var(--ease), color 0.3s var(--ease);
}

.lang-trigger:hover {
  opacity: 1;
  color: var(--gold);
}

.lang-trigger svg {
  transition: transform 0.35s var(--ease);
}

.lang-trigger[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 140px;
  padding: 6px;
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
  z-index: 70;
}

.lang-menu.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.lang-menu li {
  padding: 10px 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

.lang-menu li:hover {
  color: var(--fg);
  background: rgba(255, 255, 255, 0.04);
}

.lang-menu li.is-active {
  color: var(--gold);
}

/* ------------------------- 3. 侧滑菜单 ------------------------- */
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(0, 0, 0, 0.6);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s var(--ease);
}

.menu-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.side-menu {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 90;
  width: min(86vw, 400px);
  display: flex;
  flex-direction: column;
  background: #070707;
  border-right: 1px solid var(--line);
  padding: 22px 30px 30px;
  transform: translate3d(-100%, 0, 0);
  transition: transform 0.6s var(--ease);
  -webkit-overflow-scrolling: touch;
  overflow-y: auto;
}

.side-menu.is-open {
  transform: translate3d(0, 0, 0);
}

.side-menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.side-menu-logo {
  font-size: 13px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.side-menu-list {
  padding: 28px 0;
  display: flex;
  flex-direction: column;
}

.side-menu-list a {
  display: block;
  padding: 15px 0;
  font-size: 15px;
  letter-spacing: 0.12em;
  color: var(--fg);
  border-bottom: 1px solid var(--line);
  transition: color 0.3s var(--ease), padding-left 0.4s var(--ease);
}

.side-menu-list a:hover {
  color: var(--gold);
  padding-left: 8px;
}

.side-menu-foot {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.lang-row {
  display: flex;
  gap: 18px;
  margin-top: 12px;
}

.lang-opt {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.lang-opt:hover,
.lang-opt.is-active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ------------------------- 4. 搜索覆盖层 ------------------------- */
.search-panel {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 85;
  padding: calc(var(--header-h) + 18px) var(--page-x) 22px;
  background: rgba(5, 5, 5, 0.96);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  transform: translate3d(0, -12px, 0);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}

.search-panel.is-open {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  pointer-events: auto;
}

.search-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted);
}

.search-inner svg {
  flex: none;
  color: var(--gold);
}

#search-input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  color: var(--fg);
  font-size: 16px;   /* ≥16px 避免 iOS 聚焦自动放大 */
  letter-spacing: 0.06em;
  padding: 10px 2px;
  outline: none;
  transition: border-color 0.4s var(--ease);
}

#search-input:focus {
  border-bottom-color: var(--gold);
}

#search-input::placeholder {
  color: rgba(136, 136, 136, 0.7);
}

/* iOS 清除按钮样式统一 */
#search-input::-webkit-search-cancel-button {
  -webkit-appearance: none;
}

.search-hint {
  margin-top: 12px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

/* ------------------------- 5. 分类标题区 ------------------------- */
.catalog-head {
  max-width: 1440px;
  margin: 0 auto;
  padding: clamp(30px, 5vw, 56px) var(--page-x) clamp(16px, 2.5vw, 26px);
  text-align: center;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.breadcrumb a {
  transition: color 0.3s var(--ease);
}

.breadcrumb a:hover {
  color: var(--gold);
}

.crumb-sep {
  color: var(--gold-soft);
}

.breadcrumb [aria-current] {
  color: var(--fg);
}

/* 过滤器胶囊（极简头部：仅面包屑 + 过滤器按钮，均居中） */
.filter-row {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: clamp(18px, 3vw, 30px);
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  background: #0d0d0d;
  border: 1px solid var(--line-strong);
  color: var(--fg);
  transition: border-color 0.45s var(--ease), background 0.45s var(--ease),
    color 0.45s var(--ease);
}

.filter-pill:hover {
  border-color: var(--gold-soft);
  background: #101010;
  color: var(--gold);
}

.filter-pill[aria-expanded="true"] {
  border-color: var(--gold-soft);
  color: var(--gold);
}

.filter-pill-cn {
  font-size: 12px;
  letter-spacing: 0.14em;
}

/* 过滤器展开面板：6 组平铺下拉（线条/式样/级别/材料/颜色/零售商） */
.filter-panel {
  margin-top: 18px;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}

.filter-panel.is-open {
  opacity: 1;
  transform: translateY(0);
}

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

.filter-groups {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.filter-group {
  position: relative;
}

.filter-group-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: #0d0d0d;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: var(--fg);
  transition: border-color 0.4s var(--ease), color 0.4s var(--ease);
  white-space: nowrap;
}

.filter-group-btn:hover {
  border-color: var(--gold-soft);
  color: var(--gold);
}

.fg-label {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  transition: color 0.4s var(--ease);
}

.filter-group-btn:hover .fg-label {
  color: var(--gold);
}

.fg-value {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fg);
  transition: color 0.4s var(--ease);
}

.filter-group.has-active .fg-value {
  color: var(--gold);
}

.fg-caret {
  color: var(--muted);
  transition: transform 0.35s var(--ease), color 0.35s var(--ease);
}

.filter-group.is-open .fg-caret {
  transform: rotate(180deg);
  color: var(--gold);
}

/* 下拉选项浮层：黑底白字、悬浮高亮 */
.fg-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 60;
  min-width: 150px;
  max-width: 72vw;
  padding: 6px;
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
}

.fg-menu.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.fg-menu li {
  padding: 9px 14px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fg);
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

.fg-menu li:hover {
  background: rgba(255, 255, 255, 0.06);
}

.fg-menu li.is-active {
  color: var(--gold);
}

/* ------------------------- 6. 产品网格 ------------------------- */
.catalog-body {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--page-x) clamp(40px, 6vw, 80px);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(22px, 3vw, 44px) clamp(18px, 2.4vw, 34px);
}

.product-card {
  position: relative;
  cursor: pointer;
  outline: none;
  -webkit-user-select: none;
  user-select: none;
}

.product-card:focus-visible {
  outline: 1px solid var(--gold-soft);
  outline-offset: 6px;
}

.card-media {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: transparent;
  transform: translate3d(0, 0, 0);   /* 建立 iOS 合成层 */
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform: translate3d(0, 0, 0) scale(1);
  /* Hover Optical Zoom：微距放大专用缓动（比全局 --dur/--ease 更长更柔） */
  transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.5s var(--ease);
  transform-origin: 50% 45%;   /* 锚定表盘机芯 */
  will-change: transform;
}

@media (hover: hover) {
  .product-card:hover .card-media img,
  .product-card:focus-visible .card-media img {
    transform: translate3d(0, 0, 0) scale(1.25);
  }
}

/* 手指触碰：按压期间同步放大（触屏无 hover 态） */
@media (hover: none) {
  .product-card:active .card-media img,
  .product-card:focus-visible .card-media img {
    transform: translate3d(0, 0, 0) scale(1.25);
  }
}

/* 图片加载失败时的暗房占位 */
.card-media.img-fallback img {
  opacity: 0;
}

.card-media.img-fallback::after {
  content: attr(data-fallback-text);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(136, 136, 136, 0.55);
  border: 1px solid var(--line);
}

/* 悬浮金晕：暗房底部打光 */
.card-shine {
  position: absolute;
  left: 10%;
  right: 10%;
  bottom: -30%;
  height: 70%;
  background: radial-gradient(50% 60% at 50% 100%, rgba(201, 169, 98, 0.28), transparent 70%);
  opacity: 0;
  transform: translate3d(0, 0, 0);
  transition: opacity var(--dur) var(--ease);
  pointer-events: none;
}

.product-card:hover .card-shine,
.product-card:focus-visible .card-shine {
  opacity: 1;
}

/* 细金线点亮 */
.product-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.product-card:hover::after {
  opacity: 1;
}

.card-body {
  padding: 16px 2px 0;
  text-align: center;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg);
}

.card-desc {
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--muted);
}

/* 价格好奇心钩子：极简灰色估值入口 */
.card-price {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0;
  transform: translate3d(0, 6px, 0);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}

.card-link i {
  font-style: normal;
  transition: transform 0.45s var(--ease);
}

.product-card:hover .card-link,
.product-card:focus-visible .card-link {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.product-card:hover .card-link i {
  transform: translate3d(4px, 0, 0);
}

/* 移动端常显探索入口（无 hover 的触屏环境） */
@media (hover: none) {
  .card-link {
    opacity: 1;
    transform: none;
  }
}

.empty-state {
  padding: 80px 0 40px;
  text-align: center;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

/* 筛选隐藏：仅用 opacity/display，避免布局抖动 */
.product-card.is-hidden {
  display: none;
}

/* ------------------------- 7. 底部转化区 ------------------------- */
.cta-strip {
  position: relative;
  margin: 0 var(--page-x) clamp(48px, 7vw, 96px);
  padding: clamp(48px, 8vw, 96px) 24px;
  text-align: center;
  background:
    radial-gradient(60% 90% at 50% 115%, rgba(201, 169, 98, 0.12), transparent 65%),
    #070707;
  border: 1px solid var(--line);
  overflow: hidden;
}

.cta-title {
  margin-top: 18px;
  font-size: clamp(24px, 4.6vw, 40px);
  font-weight: 300;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.cta-sub {
  margin: 14px auto 0;
  max-width: 480px;
  font-size: 13px;
  color: var(--muted);
}

.btn-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 30px;
  padding: 15px 42px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  transition: background 0.5s var(--ease), color 0.5s var(--ease),
    box-shadow 0.5s var(--ease);
}

.btn-gold:hover {
  background: var(--gold);
  color: #050505;
  box-shadow: 0 18px 44px rgba(201, 169, 98, 0.22);
}

/* ------------------------- 8. Footer ------------------------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: clamp(40px, 6vw, 72px) var(--page-x) 34px;
}

.footer-grid {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
}

.footer-logo {
  font-size: 15px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.footer-note {
  margin-top: 14px;
  max-width: 240px;
  font-size: 12px;
  color: var(--muted);
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  transition: color 0.3s var(--ease);
}

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

.footer-legal {
  max-width: 1440px;
  margin: 44px auto 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-legal p {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: rgba(136, 136, 136, 0.75);
}

.ad-notice {
  color: rgba(201, 169, 98, 0.6);
}

/* ------------------------- 9. 价格与配额抽屉（Price & Allocation Drawer） ------------------------- */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 100;
  visibility: hidden;
  transition: visibility 0s var(--dur);
}

.drawer.is-open {
  visibility: visible;
  transition: visibility 0s 0s;
}

.drawer-mask {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.62);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}

.drawer.is-open .drawer-mask {
  opacity: 1;
}

/* 纯黑半透明 + 毛玻璃：深渊黑抽屉自右侧滑入 */
.drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(480px, 100%);
  display: flex;
  flex-direction: column;
  background: rgba(5, 5, 5, 0.95);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-left: 1px solid var(--line-strong);
  transform: translate3d(100%, 0, 0);
  transition: transform var(--dur) var(--ease);
}

.drawer.is-open .drawer-panel {
  transform: translate3d(0, 0, 0);
}

.drawer-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--fg);
  background: rgba(5, 5, 5, 0.55);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease);
}

.drawer-close:hover {
  color: var(--gold);
  border-color: var(--gold-soft);
}

.drawer-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;   /* iOS 弹性滚动 */
  overscroll-behavior: contain;
  padding-bottom: 44px;
}

.drawer-media {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background:
    radial-gradient(90% 70% at 50% 100%, rgba(201, 169, 98, 0.1), transparent 62%),
    #030303;
}

.drawer-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.drawer-head {
  padding: 22px 24px 0;
  text-align: center;
}

.drawer-head .fine-label {
  color: var(--gold);
}

.drawer-title {
  margin-top: 10px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.drawer-sub {
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
}

/* 实时估值卡片：细金线顶边 + 微光底 */
.price-card {
  margin: 22px 20px 0;
  padding: 16px 16px 12px;
  border: 1px solid var(--line-strong);
  border-top: 1px solid var(--gold-soft);
  background: rgba(255, 255, 255, 0.02);
}

.price-card-title {
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
}

.price-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0 11px;
  border-bottom: 1px solid var(--line);
}

.price-row:last-of-type {
  border-bottom: 0;
  padding-bottom: 2px;
}

.price-row-label {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.price-row-value {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-align: right;
  color: var(--fg);
}

.price-poa {
  color: var(--gold);
}

.price-row-crypto .price-row-value {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
}

.price-note {
  margin-top: 10px;
  font-size: 10px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: rgba(136, 136, 136, 0.72);
}

/* 验证现货按钮：三态切换（待验证 / 核验中 / 已锁定） */
.verify-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  margin: 16px 20px 0;
  padding: 0 18px;
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  overflow: hidden;
  transition: color 0.5s var(--ease), background 0.5s var(--ease),
    border-color 0.5s var(--ease);
}

.verify-btn:hover {
  background: rgba(201, 169, 98, 0.08);
}

/* 核验中的暖金径向脉冲（仅 opacity 动画，合成层友好） */
.verify-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 180% at 50% 100%, rgba(201, 169, 98, 0.2), transparent 65%);
  opacity: 0;
  pointer-events: none;
}

.verify-btn.is-loading::after {
  animation: verifyPulse 1.2s ease-in-out infinite;
}

@keyframes verifyPulse {
  0%, 100% { opacity: 0; }
  50% { opacity: 1; }
}

.v-state {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.verify-btn .v-idle {
  display: flex;
}

.verify-btn.is-loading .v-idle,
.verify-btn.is-done .v-idle,
.verify-btn.is-loading .v-done,
.verify-btn.is-done .v-loading {
  display: none;
}

.verify-btn.is-loading .v-loading,
.verify-btn.is-done .v-done {
  display: flex;
}

.v-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  animation: dotBreath 2s ease-in-out infinite;
}

@keyframes dotBreath {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 1; }
}

.v-spinner {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1.5px solid rgba(201, 169, 98, 0.25);
  border-top-color: var(--gold);
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.verify-btn.is-done {
  border-color: var(--gold);
  background: rgba(201, 169, 98, 0.06);
  cursor: default;
}

/* 配额锁定后的纯白高亮转化按钮 */
.concierge-wrap {
  margin: 14px 20px 0;
  opacity: 0;
  transform: translate3d(0, 14px, 0);
  transition: opacity 0.6s var(--ease) 0.15s, transform 0.6s var(--ease) 0.15s;
}

.concierge-wrap.is-in {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.btn-white {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px 20px;
  background: var(--fg);
  color: #050505;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}

.btn-white:hover {
  transform: translate3d(0, -2px, 0);
  box-shadow: 0 16px 44px rgba(255, 255, 255, 0.16);
}

.drawer-cta-note {
  margin-top: 10px;
  text-align: center;
  font-size: 10px;
  letter-spacing: 0.05em;
  color: rgba(136, 136, 136, 0.72);
}

.drawer-specs {
  margin: 28px 20px 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.drawer-specs .fine-label {
  color: var(--muted);
}

.drawer-specs-list {
  margin-top: 4px;
}

.drawer-specs-list dt {
  padding-top: 12px;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.drawer-specs-list dd {
  padding-top: 4px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--fg);
}

/* ------------------------- 10. 入场动画 ------------------------- */
.reveal {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ------------------------- 11. 响应式 ------------------------- */
/* 平板 / 小桌面：双列 */
@media (max-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 手机：单列 */
@media (max-width: 600px) {
  :root {
    --header-h: 58px;
  }

  .product-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .card-media {
    aspect-ratio: 4 / 5;
  }

  .hamburger-text {
    display: none;
  }

  .series-link {
    display: none;
  }

  .logo {
    letter-spacing: 0.2em;
  }

  .drawer-panel {
    width: 100%;
  }

  .drawer-head {
    padding: 20px 16px 0;
  }

  .price-card,
  .concierge-wrap,
  .drawer-specs {
    margin-left: 14px;
    margin-right: 14px;
  }

  .verify-btn {
    margin-left: 14px;
    margin-right: 14px;
  }

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

  .cta-strip {
    margin-left: 0;
    margin-right: 0;
  }
}

/* 中屏过渡 */
@media (min-width: 601px) and (max-width: 768px) {
  .card-media {
    aspect-ratio: 4 / 5;
  }
}