@charset "UTF-8";

/* ============================================================
   主题二十一：赤金 · 复古奢华（浓郁金棕型）
   深酒红 / 古铜金 / 暖棕 — 复古奢华、浓郁醇厚
   ============================================================ */

:root {
  color-scheme: dark;
  --vd-bg-1: #241A12;
  --vd-bg-2: #1C1410;
  --vd-steel: #3A2A1E;
  --vd-steel-light: #4A3626;
  --vd-steel-dark: #241A12;
  --vd-silver: #F2E0C0;
  --vd-silver-dim: #C8B090;
  --vd-gunmetal: #2A1E18;
  --vd-gold: #C49A5A;
  --vd-gold-dark: #A8803E;
  --vd-rivet: #8A7A60;
  --vd-rivet-hi: #C49A5A;
  --vd-green: #C49A5A;
  --vd-green-glow: rgba(196, 154, 90, 0.55);
  --vd-red: #A85A4A;
  --vd-text: #C8B090;
  --vd-muted: #8A7A60;
  --vd-stroke: rgba(200, 150, 80, 0.2);
  --vd-stroke-2: rgba(200, 150, 80, 0.1);
  --vd-shadow: 0 18px 60px rgba(0, 0, 0, 0.7);
  --vd-shadow-soft: 0 8px 28px rgba(0, 0, 0, 0.55);
  --vd-radius: 14px;
  --vd-radius-sm: 8px;
  --vd-serif: "Playfair Display", "Times New Roman", serif;
  --vd-roboto: "Lora", "Georgia", serif;
  --vd-mono: "Roboto Mono", "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--vd-roboto);
  line-height: 1.8;
  color: var(--vd-text);
  background: var(--vd-bg-2);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ----- Vintage parchment background ----- */
.vd-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(255, 235, 200, 0.012) 0px,
      rgba(255, 235, 200, 0.012) 1px,
      transparent 1px,
      transparent 3px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(0, 0, 0, 0.22) 0px,
      rgba(0, 0, 0, 0.22) 1px,
      transparent 1px,
      transparent 5px
    ),
    radial-gradient(ellipse at 25% 15%, rgba(196, 154, 90, 0.09), transparent 55%),
    radial-gradient(ellipse at 75% 85%, rgba(140, 60, 45, 0.10), transparent 55%),
    linear-gradient(180deg, var(--vd-bg-1) 0%, var(--vd-bg-2) 100%);
}

.vd-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent 0px,
      transparent 2px,
      rgba(0, 0, 0, 0.13) 2px,
      rgba(0, 0, 0, 0.13) 3px
    );
  mix-blend-mode: multiply;
  opacity: 0.5;
  pointer-events: none;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; color: inherit; }
img { display: block; max-width: 100%; }

::selection { background: var(--vd-gold); color: #1C1410; }

/* ===================== Navigation ===================== */
.vd-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: linear-gradient(180deg, rgba(36, 26, 18, 0.94), rgba(26, 18, 13, 0.94));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--vd-stroke);
  box-shadow: 0 2px 0 rgba(242, 224, 192, 0.03), 0 6px 22px rgba(0, 0, 0, 0.55);
}

.vd-nav-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.vd-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--vd-roboto);
  font-weight: 800;
  letter-spacing: 1.4px;
  color: var(--vd-silver);
}

.vd-logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 17px;
  font-weight: 800;
  color: #1C1410;
  background:
    radial-gradient(circle at 30% 28%, #F2E0C0 0%, #C49A5A 40%, #8A6430 75%, #5A4020 100%);
  box-shadow:
    inset 0 0 0 2px rgba(0, 0, 0, 0.35),
    inset 0 2px 4px rgba(255, 240, 210, 0.5),
    inset 0 -2px 4px rgba(0, 0, 0, 0.5),
    0 4px 12px rgba(0, 0, 0, 0.6);
}

.vd-logo-text {
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.vd-nav-links {
  list-style: none;
  margin: 0 auto 0 0;
  padding: 0;
  display: flex;
  gap: 6px;
}

.vd-nav-links a {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--vd-silver-dim);
  position: relative;
  transition: color 0.2s, background 0.2s;
}

.vd-nav-links a:hover {
  color: var(--vd-silver);
  background: rgba(255, 255, 255, 0.04);
}

.vd-nav-links a::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--vd-gold), transparent);
  opacity: 0;
  transition: opacity 0.25s;
}

.vd-nav-links a:hover::after { opacity: 1; }

.vd-nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.vd-icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--vd-stroke);
  background: linear-gradient(180deg, var(--vd-steel-light), var(--vd-steel-dark));
  display: grid;
  place-items: center;
  cursor: pointer;
  color: var(--vd-silver);
  transition: transform 0.15s, box-shadow 0.2s, border-color 0.2s;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 2px 6px rgba(0, 0, 0, 0.4);
}

.vd-icon-btn:hover {
  border-color: var(--vd-rivet-hi);
  transform: translateY(-1px);
}

.vd-icon-btn:active { transform: translateY(0) scale(0.97); }

.vd-icon-btn svg { width: 18px; height: 18px; }

.vd-mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--vd-stroke);
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.vd-mobile-menu-btn span {
  width: 18px;
  height: 2px;
  background: var(--vd-silver);
  transition: 0.25s;
}

.vd-mobile-menu-btn.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.vd-mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
.vd-mobile-menu-btn.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ===================== Search Overlay ===================== */
.vd-search-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(22, 15, 11, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 80px 24px 24px;
}

.vd-search-overlay.active { display: flex; }

.vd-search-overlay-inner {
  width: 100%;
  max-width: 720px;
  position: relative;
}

.vd-search-close {
  position: absolute;
  top: -52px;
  right: 0;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--vd-stroke);
  background: var(--vd-steel);
  color: var(--vd-silver);
  font-size: 22px;
  cursor: pointer;
}

.vd-search-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border: 1px solid var(--vd-stroke);
  background: linear-gradient(180deg, rgba(58, 42, 30, 0.95), rgba(38, 27, 20, 0.95));
  border-radius: 10px;
  box-shadow: var(--vd-shadow);
}

.vd-search-box svg { width: 20px; height: 20px; color: var(--vd-silver-dim); flex: none; }

.vd-search-input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: 0;
  font-size: 17px;
  color: var(--vd-silver);
  letter-spacing: 0.5px;
}

.vd-search-input::placeholder { color: var(--vd-muted); }

.vd-search-results {
  margin-top: 12px;
  max-height: 60vh;
  overflow-y: auto;
  border: 1px solid var(--vd-stroke);
  border-radius: 10px;
  background: rgba(32, 23, 17, 0.96);
  box-shadow: var(--vd-shadow-soft);
}

.vd-search-result-item {
  display: flex;
  gap: 14px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--vd-stroke-2);
  transition: background 0.15s;
}

.vd-search-result-item:hover { background: rgba(255, 255, 255, 0.04); }
.vd-search-result-item:last-child { border-bottom: 0; }

.vd-search-result-thumb {
  width: 56px;
  height: 56px;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--vd-stroke);
  flex: none;
  background: var(--vd-steel-dark);
}

.vd-search-result-thumb img { width: 100%; height: 100%; object-fit: cover; }

.vd-search-result-info { flex: 1; min-width: 0; }

.vd-search-result-cat {
  font-size: 10px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--vd-gold);
  margin-bottom: 4px;
}

.vd-search-result-title {
  font-size: 14px;
  color: var(--vd-silver);
  font-weight: 500;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.vd-search-empty {
  padding: 28px 20px;
  text-align: center;
  color: var(--vd-muted);
  font-size: 13px;
  letter-spacing: 0.5px;
}

/* ===================== Main container ===================== */
main { min-height: 60vh; }

.vd-section {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
}

.vd-section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin: 56px 0 22px;
  gap: 16px;
  flex-wrap: wrap;
}

.vd-section-label {
  font-size: 11px;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--vd-gold);
  margin-bottom: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.vd-section-label::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--vd-gold);
}

.vd-section-title {
  font-family: var(--vd-serif);
  font-size: 27px;
  font-weight: 700;
  font-style: italic;
  letter-spacing: 1px;
  text-transform: none;
  color: var(--vd-silver);
  margin: 0;
}

.vd-section-cta {
  font-size: 12px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--vd-silver-dim);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--vd-stroke);
  border-radius: 6px;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.vd-section-cta:hover {
  color: var(--vd-silver);
  border-color: var(--vd-rivet-hi);
  background: rgba(255, 255, 255, 0.04);
}

/* ===================== Hero / Vault Dial ===================== */
.vd-vault-wrap {
  padding: 40px 24px 12px;
  max-width: 1320px;
  margin: 0 auto;
}

.vd-vault-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 36px;
  align-items: center;
}

/* ----- The dial (限高 221px) ----- */
.vd-dial-stage {
  height: 221px;
  display: grid;
  place-items: center;
  position: relative;
}

.vd-dial {
  position: relative;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  transform-style: preserve-3d;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
  filter: drop-shadow(0 14px 24px rgba(0, 0, 0, 0.65));
}

/* Outer ring with rivets & tick marks */
.vd-dial-rim {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background:
    repeating-conic-gradient(
      from 0deg,
      #3A2A1E 0deg 8deg,
      #4A3A28 8deg 16deg
    );
  box-shadow:
    inset 0 0 0 2px rgba(0, 0, 0, 0.6),
    inset 0 4px 10px rgba(242, 224, 192, 0.07),
    inset 0 -4px 10px rgba(0, 0, 0, 0.6);
}

.vd-dial-rim::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background:
    repeating-conic-gradient(
      from 0deg,
      transparent 0deg 4deg,
      rgba(0, 0, 0, 0.6) 4deg 5deg
    );
  mix-blend-mode: multiply;
  opacity: 0.55;
  pointer-events: none;
}

/* Rivets */
.vd-rivet {
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #C49A5A, #5A4020 70%, #241A12);
  box-shadow:
    inset 0 0 0 1px rgba(0, 0, 0, 0.6),
    0 1px 2px rgba(0, 0, 0, 0.6);
}

/* The 4 sectors */
.vd-dial-face {
  position: absolute;
  inset: 14px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--vd-steel-dark);
  box-shadow:
    inset 0 0 0 1px rgba(0, 0, 0, 0.7),
    inset 0 6px 14px rgba(0, 0, 0, 0.5);
}

.vd-sector {
  position: absolute;
  inset: 0;
  cursor: pointer;
  transition: filter 0.25s;
  transform-origin: center;
  background:
    linear-gradient(180deg, rgba(242, 224, 192, 0.05), transparent 55%),
    linear-gradient(180deg, var(--sector-color, #3A2A1E), var(--sector-color-dark, #241A12));
}

/* Each sector is a 90° wedge centered on a cardinal direction.
   The parent .vd-dial-face is circular (border-radius + overflow:hidden),
   so the visible portion of each triangle is a true pie wedge. */
.vd-sector[data-pos="0"] { clip-path: polygon(50% 50%, 0% 0%, 100% 0%); }
.vd-sector[data-pos="1"] { clip-path: polygon(50% 50%, 100% 0%, 100% 100%); }
.vd-sector[data-pos="2"] { clip-path: polygon(50% 50%, 100% 100%, 0% 100%); }
.vd-sector[data-pos="3"] { clip-path: polygon(50% 50%, 0% 100%, 0% 0%); }

.vd-sector-inner {
  position: absolute;
  text-align: center;
  pointer-events: none;
  /* counter-rotate is applied via JS to keep text upright as the dial spins */
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
  transform-origin: center;
}

/* Position each sector's label near the outer rim of its wedge */
.vd-sector[data-pos="0"] .vd-sector-inner { top: 12%; left: 50%; transform: translate(-50%, 0); }
.vd-sector[data-pos="1"] .vd-sector-inner { top: 50%; right: 12%; transform: translate(0, -50%); }
.vd-sector[data-pos="2"] .vd-sector-inner { bottom: 12%; left: 50%; transform: translate(-50%, 0); }
.vd-sector[data-pos="3"] .vd-sector-inner { top: 50%; left: 12%; transform: translate(0, -50%); }

.vd-sector-abbr {
  display: block;
  font-family: var(--vd-serif);
  font-weight: 700;
  font-style: italic;
  font-size: 26px;
  letter-spacing: 2px;
  color: rgba(242, 224, 192, 0.95);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.7);
  line-height: 1;
}

.vd-sector-num {
  display: block;
  margin-top: 6px;
  font-family: var(--vd-mono);
  font-size: 10px;
  letter-spacing: 1.4px;
  color: rgba(200, 176, 144, 0.75);
}

.vd-sector:hover { filter: brightness(1.18); }

.vd-sector:active .vd-sector-inner { transform: translate(-50%, 0) scale(0.97); }
.vd-sector[data-pos="1"]:active .vd-sector-inner { transform: translate(0, -50%) scale(0.97); }
.vd-sector[data-pos="2"]:active .vd-sector-inner { transform: translate(-50%, 0) scale(0.97); }
.vd-sector[data-pos="3"]:active .vd-sector-inner { transform: translate(0, -50%) scale(0.97); }

.vd-sector.is-active {
  filter: brightness(1.25);
  box-shadow: inset 0 0 0 2px var(--vd-green-glow);
}

/* Lock core (center) */
.vd-lock-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  z-index: 5;
  background:
    radial-gradient(circle at 30% 30%, #C49A5A 0%, #4A3626 55%, #241A12 100%);
  box-shadow:
    inset 0 0 0 2px rgba(0, 0, 0, 0.7),
    inset 0 3px 6px rgba(242, 224, 192, 0.2),
    inset 0 -3px 6px rgba(0, 0, 0, 0.7),
    0 6px 14px rgba(0, 0, 0, 0.7);
  display: grid;
  place-items: center;
  pointer-events: none;
}

.vd-lock-core::before {
  content: "";
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #4A2018;
  box-shadow:
    inset 0 0 0 1px rgba(0, 0, 0, 0.6),
    inset 0 2px 3px rgba(0, 0, 0, 0.6);
  transition: background 0.35s, box-shadow 0.35s;
}

.vd-lock-core.is-unlocked::before {
  background: var(--vd-green);
  box-shadow:
    inset 0 0 0 1px rgba(0, 0, 0, 0.4),
    0 0 14px var(--vd-green-glow),
    0 0 24px var(--vd-green-glow);
}

/* Unlock position pointer */
.vd-unlock-pointer {
  position: absolute;
  top: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 11px solid var(--vd-gold);
  z-index: 6;
  filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.6));
}

/* Popout info panel */
.vd-vault-info {
  position: relative;
  padding: 22px 26px;
  min-height: 200px;
  border: 1px solid var(--vd-stroke);
  background:
    linear-gradient(180deg, rgba(48, 34, 25, 0.94), rgba(32, 22, 16, 0.94));
  border-radius: var(--vd-radius);
  box-shadow:
    3px 3px 12px rgba(0, 0, 0, 0.45),
    -2px 4px 10px rgba(0, 0, 0, 0.35),
    0 12px 32px rgba(0, 0, 0, 0.55);
  overflow: hidden;
}

.vd-vault-info::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--vd-gold), transparent);
}

.vd-vault-info-label {
  display: inline-block;
  padding: 4px 10px;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #1C1410;
  background:
    linear-gradient(180deg, #D9B273, #A8803E);
  border-radius: 3px;
  box-shadow:
    inset 0 1px 0 rgba(242, 224, 192, 0.35),
    inset 0 -1px 0 rgba(0, 0, 0, 0.35),
    0 2px 4px rgba(0, 0, 0, 0.5);
  font-weight: 700;
}

.vd-vault-info-title {
  margin: 12px 0 8px;
  font-family: var(--vd-serif);
  font-size: 23px;
  font-weight: 700;
  font-style: italic;
  letter-spacing: 0.4px;
  line-height: 1.35;
  color: var(--vd-silver);
  text-transform: none;
}

.vd-vault-info-excerpt {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--vd-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.vd-vault-info-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 12px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--vd-silver);
  background: linear-gradient(180deg, var(--vd-steel-light), var(--vd-steel-dark));
  border: 1px solid var(--vd-stroke);
  border-radius: 6px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 3px 8px rgba(0, 0, 0, 0.4);
  transition: transform 0.15s, box-shadow 0.2s, color 0.2s;
  position: relative;
  overflow: hidden;
}

.vd-vault-info-cta:hover {
  color: #fff;
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 6px 14px rgba(0, 0, 0, 0.5);
}

.vd-vault-info-cta:active { transform: translateY(0) scale(0.97); }

.vd-vault-info-cta::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 0; height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s, opacity 0.5s;
  opacity: 0;
}

.vd-vault-info-cta:active::after {
  width: 220px; height: 220px; opacity: 1;
  transition: 0s;
}

.vd-vault-info-cta svg { width: 14px; height: 14px; }

.vd-vault-info-meta {
  position: absolute;
  top: 22px;
  right: 26px;
  font-family: var(--vd-mono);
  font-size: 10px;
  letter-spacing: 1.4px;
  color: var(--vd-silver-dim);
  text-align: right;
}

.vd-vault-info-meta strong {
  display: block;
  color: var(--vd-gold);
  font-size: 11px;
  margin-bottom: 2px;
}

/* Pulse rings when switching (security-verification pulse) */
.vd-pulse {
  position: absolute;
  top: 50%; left: 50%;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid var(--vd-green);
  transform: translate(-50%, -50%) scale(1);
  opacity: 0;
  pointer-events: none;
}

.vd-pulse.go {
  animation: vd-pulse-anim 0.9s ease-out;
}

@keyframes vd-pulse-anim {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 0.9; }
  100% { transform: translate(-50%, -50%) scale(8); opacity: 0; }
}

/* ===================== Bronze tag ===================== */
.vd-stamp {
  display: inline-block;
  padding: 4px 10px;
  font-size: 10px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--vd-gold);
  background: rgba(58, 42, 30, 0.85);
  border: 1px solid rgba(196, 154, 90, 0.45);
  border-radius: 6px;
  box-shadow: inset 0 1px 0 rgba(242, 224, 192, 0.08);
  text-shadow: none;
}

/* ===================== News cards ===================== */
.vd-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.vd-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--vd-stroke);
  border-radius: var(--vd-radius);
  background: #2A1E18;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  /* 仿古书页毛边阴影（不规则） */
  box-shadow:
    2px 2px 6px rgba(0, 0, 0, 0.45),
    -1px 3px 8px rgba(0, 0, 0, 0.35),
    4px 6px 16px rgba(0, 0, 0, 0.4);
}

/* 左上角金色菱形 ◇ */
.vd-card::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 12px;
  width: 8px;
  height: 8px;
  background: var(--vd-gold);
  transform: rotate(45deg);
  opacity: 0.9;
  transition: opacity 0.3s, box-shadow 0.3s;
  z-index: 3;
  box-shadow: 0 0 6px rgba(196, 154, 90, 0.55);
}

.vd-card:hover {
  transform: translateY(-4px);
  border-color: var(--vd-rivet-hi);
  box-shadow:
    3px 3px 8px rgba(0, 0, 0, 0.5),
    -2px 5px 12px rgba(0, 0, 0, 0.4),
    6px 10px 24px rgba(0, 0, 0, 0.55);
}

.vd-card:hover::before { opacity: 1; box-shadow: 0 0 10px rgba(196, 154, 90, 0.8); }

.vd-card:active { transform: translateY(-1px) scale(0.99); }

.vd-card-img {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--vd-steel-dark);
  border-bottom: 1px solid var(--vd-stroke);
}

.vd-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.78) contrast(1.05) saturate(0.85);
  transition: transform 0.5s, filter 0.4s;
}

.vd-card:hover .vd-card-img img {
  transform: scale(1.06);
  filter: brightness(0.92) contrast(1.05) saturate(1);
}

.vd-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 50%, rgba(20, 14, 10, 0.85) 100%);
  pointer-events: none;
}

.vd-card-tag {
  position: absolute;
  top: 10px;
  left: 30px;
  z-index: 2;
}

.vd-card-id {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  font-family: var(--vd-mono);
  font-size: 10px;
  letter-spacing: 1.2px;
  color: var(--vd-silver);
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid var(--vd-stroke);
  padding: 2px 7px;
  border-radius: 3px;
}

.vd-card-body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.vd-card-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--vd-silver);
  letter-spacing: 0.2px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s;
}

.vd-card:hover .vd-card-title { color: #D9B273; }

.vd-card-excerpt {
  font-size: 12px;
  line-height: 1.55;
  color: var(--vd-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.vd-card-read {
  margin-top: auto;
  font-size: 11px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--vd-silver-dim);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  transition: color 0.2s, gap 0.2s;
}

.vd-card:hover .vd-card-read {
  color: var(--vd-green);
  gap: 9px;
}

.vd-card-read svg { width: 12px; height: 12px; }

/* Featured large card */
.vd-card--lg {
  grid-column: span 2;
  grid-row: span 2;
}

.vd-card--lg .vd-card-img { aspect-ratio: 16 / 10; }

.vd-card--lg .vd-card-title { font-size: 22px; -webkit-line-clamp: 4; }

.vd-card--lg .vd-card-excerpt { font-size: 13px; -webkit-line-clamp: 4; }

/* Compact list */
.vd-row-scroll {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 4px 4px 18px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--vd-rivet) transparent;
}

.vd-row-scroll::-webkit-scrollbar { height: 6px; }
.vd-row-scroll::-webkit-scrollbar-track { background: transparent; }
.vd-row-scroll::-webkit-scrollbar-thumb {
  background: var(--vd-rivet);
  border-radius: 3px;
}

.vd-compact {
  flex: 0 0 280px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--vd-stroke);
  border-radius: var(--vd-radius-sm);
  background: #2A1E18;
  overflow: hidden;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
  box-shadow:
    2px 2px 6px rgba(0, 0, 0, 0.4),
    -1px 3px 8px rgba(0, 0, 0, 0.3);
}

.vd-compact:hover {
  transform: translateY(-3px);
  border-color: var(--vd-rivet-hi);
  box-shadow:
    3px 3px 8px rgba(0, 0, 0, 0.5),
    5px 8px 20px rgba(0, 0, 0, 0.5);
}

.vd-compact-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--vd-steel-dark);
}

.vd-compact-img img {
  width: 100%; height: 100%; object-fit: cover;
  filter: brightness(0.78) contrast(1.05);
  transition: transform 0.4s, filter 0.3s;
}

.vd-compact:hover .vd-compact-img img {
  transform: scale(1.05);
  filter: brightness(0.95);
}

.vd-compact-body { padding: 12px 14px 14px; }

.vd-compact-title {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--vd-silver);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===================== Section divider（双线：上细下粗） ===================== */
.vd-divider {
  position: relative;
  height: 5px;
  margin: 56px 24px 0;
  border-top: 1px solid #3D3024;
  border-bottom: 2px solid #3D3024;
  background: transparent;
  max-width: 1272px;
  margin-left: auto;
  margin-right: auto;
}

.vd-divider::before {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 8px; height: 8px;
  background: var(--vd-gold);
  transform: translate(-50%, -50%) rotate(45deg);
  box-shadow: 0 0 0 2px var(--vd-bg-2), 0 0 8px rgba(196, 154, 90, 0.7);
}

/* ===================== Footer ===================== */
.vd-footer {
  margin-top: 80px;
  border-top: 1px solid var(--vd-stroke);
  background:
    linear-gradient(180deg, rgba(26, 18, 13, 0.96), rgba(20, 14, 10, 0.98));
  box-shadow: 0 -4px 22px rgba(0, 0, 0, 0.55);
}

.vd-footer-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 50px 24px 24px;
}

.vd-footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}

.vd-footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.vd-footer-brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 17px;
  font-weight: 800;
  color: #1C1410;
  background: radial-gradient(circle at 30% 28%, #F2E0C0 0%, #C49A5A 40%, #8A6430 75%, #5A4020 100%);
  box-shadow:
    inset 0 0 0 2px rgba(0, 0, 0, 0.35),
    inset 0 2px 4px rgba(255, 240, 210, 0.5),
    inset 0 -2px 4px rgba(0, 0, 0, 0.5);
}

.vd-footer-brand-text {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--vd-silver);
}

.vd-footer-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--vd-muted);
  max-width: 360px;
  margin: 0 0 16px;
}

.vd-footer-heading {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--vd-gold);
  margin: 0 0 14px;
}

.vd-footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.vd-footer-links a {
  font-size: 13px;
  color: var(--vd-silver-dim);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s;
}

.vd-footer-links a::before {
  content: "";
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--vd-rivet);
  transition: background 0.2s;
}

.vd-footer-links a:hover { color: var(--vd-silver); }
.vd-footer-links a:hover::before { background: var(--vd-green); }

.vd-footer-bottom {
  border-top: 1px solid var(--vd-stroke);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.vd-footer-copy {
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--vd-muted);
}

.vd-footer-secure {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--vd-green);
  font-weight: 700;
}

.vd-footer-secure::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--vd-green);
  box-shadow: 0 0 8px var(--vd-green-glow);
  animation: vd-blink 2s infinite;
}

@keyframes vd-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ===================== Reveal animation ===================== */
.vd-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.vd-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================== Detail page ===================== */
.vd-detail-wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 40px 24px 60px;
}

.vd-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  font-size: 11px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--vd-silver-dim);
  background: linear-gradient(180deg, var(--vd-steel-light), var(--vd-steel-dark));
  border: 1px solid var(--vd-stroke);
  border-radius: 6px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 3px 8px rgba(0, 0, 0, 0.4);
  transition: color 0.2s, transform 0.15s;
  margin-bottom: 24px;
}

.vd-back:hover {
  color: var(--vd-silver);
  transform: translateX(-2px);
}

.vd-back svg { width: 14px; height: 14px; }

.vd-detail-header {
  border-bottom: 1px solid var(--vd-stroke);
  padding-bottom: 24px;
  margin-bottom: 28px;
}

.vd-detail-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.vd-detail-id {
  font-family: var(--vd-mono);
  font-size: 11px;
  letter-spacing: 1.6px;
  color: var(--vd-silver-dim);
  padding: 4px 9px;
  border: 1px solid var(--vd-stroke);
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.3);
}

.vd-detail-date {
  font-family: var(--vd-mono);
  font-size: 11px;
  letter-spacing: 1.4px;
  color: var(--vd-muted);
}

.vd-detail-title {
  font-family: var(--vd-serif);
  font-size: 38px;
  font-weight: 700;
  font-style: italic;
  letter-spacing: -0.2px;
  line-height: 1.25;
  color: var(--vd-silver);
  margin: 0 0 12px;
  text-transform: none;
}

.vd-detail-sub {
  font-size: 14px;
  color: var(--vd-muted);
  font-style: italic;
}

.vd-detail-hero {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--vd-radius);
  overflow: hidden;
  border: 1px solid var(--vd-stroke);
  margin-bottom: 28px;
  box-shadow: var(--vd-shadow);
}

.vd-detail-hero img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.85) contrast(1.05);
}

.vd-detail-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 60%, rgba(20, 14, 10, 0.7) 100%);
  pointer-events: none;
}

.vd-detail-frame {
  border: 1px solid var(--vd-stroke);
  background: #2A1E18;
  border-radius: var(--vd-radius);
  padding: 32px 34px;
  position: relative;
  box-shadow:
    2px 2px 8px rgba(0, 0, 0, 0.4),
    -2px 4px 12px rgba(0, 0, 0, 0.35),
    0 14px 36px rgba(0, 0, 0, 0.5);
}

.vd-detail-frame::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--vd-gold), transparent);
}

.vd-detail-rivet {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #C49A5A, #4A3626 70%, #241A12);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.6);
}

.vd-detail-rivet.tl { top: 12px; left: 12px; }
.vd-detail-rivet.tr { top: 12px; right: 12px; }
.vd-detail-rivet.bl { bottom: 12px; left: 12px; }
.vd-detail-rivet.br { bottom: 12px; right: 12px; }

.vd-detail-body {
  font-size: 15px;
  line-height: 1.85;
  color: var(--vd-text);
  letter-spacing: 0.2px;
}

.vd-detail-body p { margin: 0 0 18px; }

.vd-detail-body p:first-letter {
  font-size: 44px;
  font-weight: 700;
  font-style: italic;
  float: left;
  line-height: 1;
  padding: 4px 10px 0 0;
  color: var(--vd-gold);
  font-family: var(--vd-serif);
}

.vd-detail-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 30px 0;
  color: var(--vd-gold);
}

.vd-detail-divider::before, .vd-detail-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--vd-gold-dark), transparent);
}

.vd-detail-divider span {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 700;
}

.vd-detail-related {
  margin-top: 44px;
  border-top: 1px solid var(--vd-stroke);
  padding-top: 26px;
}

.vd-detail-related h3 {
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--vd-gold);
  margin: 0 0 18px;
  font-weight: 700;
}

.vd-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ===================== Responsive ===================== */
@media (max-width: 1100px) {
  .vd-vault-grid { grid-template-columns: 240px 1fr; gap: 24px; }
  .vd-grid { grid-template-columns: repeat(3, 1fr); }
  .vd-card--lg { grid-column: span 2; grid-row: auto; }
}

@media (max-width: 820px) {
  .vd-nav-links { display: none; }
  .vd-nav-links.mobile-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    background: rgba(30, 21, 15, 0.98);
    padding: 14px 24px;
    border-bottom: 1px solid var(--vd-stroke);
  }
  .vd-mobile-menu-btn { display: flex; }
  .vd-vault-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .vd-dial-stage { margin: 0 auto; }
  .vd-grid { grid-template-columns: repeat(2, 1fr); }
  .vd-card--lg { grid-column: span 2; }
  .vd-footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .vd-detail-title { font-size: 28px; }
  .vd-detail-frame { padding: 22px 18px; }
  .vd-related-grid { grid-template-columns: 1fr; }
}

@media (max-width: 540px) {
  .vd-section { padding: 0 16px; }
  .vd-vault-wrap { padding: 24px 16px 8px; }
  .vd-grid { grid-template-columns: 1fr; }
  .vd-card--lg { grid-column: span 1; }
  .vd-footer-top { grid-template-columns: 1fr; }
  .vd-section-title { font-size: 22px; }
  .vd-detail-title { font-size: 24px; }
  .vd-compact { flex: 0 0 240px; }
}