/* ==========================================================
   哈德门广场 · 科技商务风 V3
   - Hero 深色大图 + 蓝色科技强调
   - 内容区浅色商务底
   - 细网格装饰 + monospace 数据标签
   - 真实项目大图（assets/*.jpg）
   ========================================================== */

:root {
  /* ==== 色彩 ==== */
  --bg-dark: #050810;           /* Hero/Footer 深藏蓝 */
  --bg-dark-2: #0a0f1a;
  --bg-dark-soft: #0e1522;
  --bg: #ffffff;                /* 内容区白底 */
  --bg-soft: #f4f6f9;
  --bg-cool: #eef2f7;

  --text-dark: #0a0f1a;
  --text: #1a2332;
  --text-sub: #5a6678;
  --text-muted: #8895a7;
  --text-on-dark: #ffffff;
  --text-on-dark-sub: rgba(255,255,255,0.72);
  --text-on-dark-muted: rgba(255,255,255,0.48);

  /* 科技强调色 — electric blue */
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59,130,246,0.4);
  --accent-soft: rgba(59,130,246,0.1);

  --border: #e5e8ed;
  --border-dark: rgba(255,255,255,0.1);

  /* ==== 字体 ==== */
  --display: "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", sans-serif;
  --display-weight: 600;
  --body: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", "Consolas", ui-monospace, monospace;

  /* ==== 间距 ==== */
  --s-1: clamp(4px, 0.5vw, 6px);
  --s-2: clamp(8px, 1vw, 12px);
  --s-3: clamp(12px, 1.5vw, 18px);
  --s-4: clamp(16px, 2vw, 24px);
  --s-5: clamp(24px, 3vw, 36px);
  --s-6: clamp(32px, 4vw, 48px);
  --s-7: clamp(48px, 6vw, 72px);
  --s-8: clamp(72px, 9vw, 110px);
  --s-9: clamp(96px, 12vw, 150px);

  /* ==== 排版 ==== */
  --text-xs: clamp(11px, 0.75rem, 12px);
  --text-sm: clamp(12px, 0.82rem, 13px);
  --text-base: clamp(14px, 0.95rem, 16px);
  --text-md: clamp(15px, 1.05rem, 17px);
  --text-lg: clamp(17px, 1.2rem, 20px);
  --text-xl: clamp(20px, 1.5rem, 26px);
  --text-2xl: clamp(28px, 2.2vw, 40px);
  --text-3xl: clamp(36px, 3vw, 54px);
  --text-4xl: clamp(48px, 4.5vw, 72px);
  --text-mega: clamp(56px, 6vw, 100px);

  /* ==== 布局 ==== */
  --max: 1240px;
  --nav-h: 72px;

  /* ==== 动效 ==== */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 280ms;
}

/* ==========================================================
   BASE
   ========================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--body);
  font-size: var(--text-base);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color var(--dur) var(--ease); }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
h1,h2,h3,h4 { margin: 0; font-weight: var(--display-weight); letter-spacing: -0.01em; line-height: 1.15; font-family: var(--display); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* ==========================================================
   CONTAINER
   ========================================================== */
.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--s-5);
}

/* ==========================================================
   APP SHELL · NAV (所有页面 byte-identical)
   ========================================================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(5,8,16,0.82);
  backdrop-filter: saturate(1.3) blur(14px);
  -webkit-backdrop-filter: saturate(1.3) blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  z-index: 100;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav.is-scrolled {
  border-color: rgba(59,130,246,0.2);
  background: rgba(5,8,16,0.95);
}
.nav .wrap {
  height: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--s-5);
}

.brand { display: flex; align-items: center; gap: var(--s-3); }
.brand-mark {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent) 0%, #6366f1 100%);
  font-family: var(--display);
  font-size: 16px; font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  border-radius: 3px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text-cn {
  font-family: var(--display);
  font-size: 16px; font-weight: 600;
  color: #fff; letter-spacing: 0.03em;
}
.brand-text-en {
  font-family: var(--mono);
  font-size: 9px; letter-spacing: 0.25em; text-transform: uppercase;
  color: rgba(255,255,255,0.45);
}

.menu {
  display: flex; justify-content: center; gap: var(--s-1);
  list-style: none; padding: 0; margin: 0;
}
.menu a {
  position: relative;
  padding: var(--s-2) var(--s-3);
  font-size: var(--text-sm); font-weight: 500;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.02em;
  transition: color var(--dur) var(--ease);
}
.menu a:hover { color: #fff; }
.menu a.active { color: #fff; }
.menu a.active::after {
  content: "";
  position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 24px; height: 2px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

.nav-actions { display: flex; align-items: center; gap: var(--s-3); }
.hotline {
  display: inline-flex;
  align-items: center; gap: var(--s-2);
  font-size: var(--text-sm); color: rgba(255,255,255,0.88);
  font-family: var(--mono);
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 8px 14px;
  border: 1px solid rgba(59,130,246,0.35);
  border-radius: 8px;
  background: rgba(59,130,246,0.08);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.hotline:hover {
  color: #fff;
  border-color: rgba(59,130,246,0.7);
  background: rgba(59,130,246,0.16);
}
.hotline svg { width: 15px; height: 15px; color: var(--accent); flex-shrink: 0; }

.burger { display: none; padding: var(--s-2); }
.burger svg { width: 22px; height: 22px; color: #fff; }

.drawer {
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-dark);
  padding: var(--s-4) var(--s-5);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform 380ms var(--ease), opacity var(--dur) var(--ease);
  z-index: 99;
  pointer-events: none;
}
.drawer.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
.drawer a {
  display: block;
  padding: var(--s-3) 0;
  font-size: var(--text-md); font-weight: 500;
  color: rgba(255,255,255,0.7);
  border-bottom: 1px solid var(--border-dark);
}
.drawer a:last-child { border-bottom: 0; }
.drawer a.active { color: var(--accent); }

.app-main { padding-top: var(--nav-h); }

/* ==========================================================
   BUTTONS
   ========================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--s-2);
  padding: 11px 22px;
  font-size: var(--text-sm); font-weight: 500;
  letter-spacing: 0.03em;
  border-radius: 3px;
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
}
.btn svg { width: 14px; height: 14px; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 0 var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 24px var(--accent-glow);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.35);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
}
.btn-dark {
  background: var(--text-dark);
  color: #fff;
}
.btn-dark:hover { background: var(--accent); }

/* ==========================================================
   HERO · 大图背景 + 深色遮罩 + 网格装饰
   ========================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  background:
    linear-gradient(135deg, rgba(5,8,16,0.92) 0%, rgba(5,8,16,0.70) 40%, rgba(5,8,16,0.85) 100%),
    url("assets/hero-main.jpg") center/cover no-repeat;
  overflow: hidden;
  color: #fff;
}
/* 细网格装饰 */
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}
/* 底部渐变过渡 */
.hero::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0; height: 180px;
  background: linear-gradient(180deg, transparent 0%, var(--bg) 100%);
  pointer-events: none;
  z-index: 1;
}
/* 顶部淡蓝光晕 */
.hero-glow {
  position: absolute;
  top: 20%; right: 10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  filter: blur(20px);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  position: relative; z-index: 2;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--s-7);
  align-items: end;
  padding: var(--s-8) 0 var(--s-9);
}

/* 左：标题文案 */
.hero-copy { max-width: 640px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: var(--s-2);
  padding: 6px 14px;
  background: rgba(59,130,246,0.15);
  border: 1px solid rgba(59,130,246,0.35);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: 0.15em; text-transform: uppercase;
  color: #93c5fd;
  margin-bottom: var(--s-5);
}
.hero-tag svg { width: 12px; height: 12px; }

.hero-title {
  font-family: var(--display);
  font-size: var(--text-4xl);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 var(--s-5) 0;
  color: #fff;
}
.hero-title .accent {
  background: linear-gradient(135deg, var(--accent) 0%, #60a5fa 50%, #93c5fd 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lede {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  max-width: 50ch;
  margin-bottom: var(--s-7);
}

.hero-actions { display: flex; gap: var(--s-3); flex-wrap: wrap; }
.hero-actions .btn-primary { box-shadow: 0 0 32px var(--accent-glow); }

/* 右：科技风数据面板 */
.hero-data {
  position: relative;
  display: flex; flex-direction: column;
  gap: 0;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 4px;
  overflow: hidden;
  font-family: var(--mono);
}
.hero-data::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.data-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 16px;
  border-bottom: 1px solid rgba(59,130,246,0.15);
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.data-head .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.data-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--s-4);
  padding: 18px 20px;
  border-bottom: 1px solid rgba(59,130,246,0.08);
}
.data-row:last-child { border-bottom: 0; }
.data-row .label {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 6px;
}
.data-row .value {
  font-family: var(--display);
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 600;
  color: #fff;
  line-height: 1;
  letter-spacing: -0.03em;
}
.data-row .unit {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  margin-left: 4px;
  vertical-align: top;
}
.data-row .status {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  color: #10b981;
  align-self: end;
  padding-bottom: 4px;
}

/* ==========================================================
   SECTIONS
   ========================================================== */
.section { padding-block: var(--s-8); }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-soft { background: var(--bg-soft); }
/* Section Header */
.hd { margin-bottom: var(--s-7); }
.hd-kicker {
  display: inline-flex; align-items: center; gap: var(--s-2);
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--s-3);
}
.hd-kicker::before {
  content: ""; width: 32px; height: 1px;
  background: var(--accent);
}
.section-dark .hd-kicker { color: var(--accent); }

.hd-title {
  font-family: var(--display);
  font-size: var(--text-3xl);
  color: var(--text-dark);
  max-width: 16ch;
}
.section-dark .hd-title { color: #fff; }

.hd-desc {
  font-size: var(--text-md);
  color: var(--text-sub);
  margin: var(--s-3) 0 0;
  max-width: 52ch;
}
.section-dark .hd-desc { color: rgba(255,255,255,0.65); }

.hd.center { text-align: center; }
.hd.center .hd-title { margin-inline: auto; }
.hd.center .hd-desc { margin-inline: auto; }

/* ==========================================================
   FEATURE GRID · 科技风卡片
   ========================================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-4);
}
.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: var(--s-6);
  transition: all var(--dur) var(--ease);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute; top: 0; left: 0;
  width: 28px; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 300ms var(--ease);
}
.feature-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 32px -12px var(--accent-glow);
  transform: translateY(-2px);
}
.feature-card:hover::before { transform: scaleX(1); }

.feature-idx {
  font-family: var(--mono);
  font-size: var(--text-xs);
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: var(--s-3);
}
.feature-card h3 {
  font-family: var(--display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: var(--s-3);
  line-height: 1.3;
}
.feature-card p {
  font-size: var(--text-base);
  color: var(--text-sub);
  line-height: 1.7;
  margin: 0;
}

/* ==========================================================
   PARALLEL BLOCK · 左图右文或右文左图
   ========================================================== */
.parallel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-8);
  align-items: center;
}
.parallel.reverse > :first-child { order: 2; }
.parallel.reverse > :last-child { order: 1; }

.parallel-img {
  aspect-ratio: 4/3;
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border);
}
.parallel-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 600ms var(--ease); }
.parallel-img:hover img { transform: scale(1.03); }
.parallel-img::after {
  content: "";
  position: absolute; top: 12px; right: 12px;
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase;
  padding: 4px 10px;
  background: rgba(5,8,16,0.85);
  color: var(--accent);
  border-radius: 2px;
}
.parallel-img[data-tag]::after { content: attr(data-tag); }

.big-num {
  font-family: var(--display);
  font-size: var(--text-mega);
  font-weight: 600;
  line-height: 0.95;
  color: var(--text-dark);
  letter-spacing: -0.04em;
  margin: 0;
}
.big-num .small {
  display: block;
  font-family: var(--mono);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--accent);
  letter-spacing: 0.12em; text-transform: uppercase;
  margin-top: var(--s-3);
}

/* ==========================================================
   CTA BLOCK
   ========================================================== */
.cta-block {
  position: relative;
  padding: var(--s-8) 0;
  background:
    linear-gradient(135deg, #050810 0%, #0a0f1a 50%, #050810 100%);
  color: #fff;
  overflow: hidden;
}
.cta-block::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.cta-block .wrap {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--s-8);
  align-items: center;
}
.cta-block h2 {
  font-family: var(--display);
  font-size: var(--text-3xl);
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--s-3);
}
.cta-block p {
  font-size: var(--text-md);
  color: rgba(255,255,255,0.6);
  margin: 0;
}
.cta-block .actions {
  display: flex; gap: var(--s-3); justify-content: flex-end; flex-wrap: wrap;
}

/* ==========================================================
   PLAN LIST (lease.html)
   ========================================================== */
.tabs {
  display: inline-flex;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px;
  margin-bottom: var(--s-6);
}
.tabs button {
  padding: 8px 18px;
  font-family: var(--mono);
  font-size: var(--text-sm); font-weight: 500;
  color: var(--text-sub);
  border-radius: 2px;
  transition: all var(--dur) var(--ease);
}
.tabs button:hover { color: var(--text-dark); }
.tabs button.is-active {
  background: var(--accent);
  color: #fff;
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-4);
}
.plan {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: var(--s-5);
  transition: all var(--dur) var(--ease);
  position: relative;
}
.plan:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 32px -12px var(--accent-glow);
}
.plan .area {
  font-family: var(--display);
  font-size: clamp(32px, 3vw, 44px);
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.02em;
}
.plan .area small {
  font-family: var(--mono);
  font-size: 10px; color: var(--text-muted);
  font-weight: 400; letter-spacing: 0.1em;
  margin-left: 6px; text-transform: uppercase;
}
.plan h3 {
  font-family: var(--display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-dark);
  margin: var(--s-3) 0 var(--s-1);
}
.plan .desc {
  font-size: var(--text-sm);
  color: var(--text-sub);
  margin: 0 0 var(--s-3);
}
.plan .meta {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: var(--s-3);
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ==========================================================
   FORM (contact.html)
   ========================================================== */
.field { margin-bottom: var(--s-4); }
.field label {
  display: block;
  font-size: var(--text-sm); font-weight: 500;
  color: var(--text-sub);
  margin-bottom: var(--s-2);
  letter-spacing: 0.01em;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: var(--text-base); font-family: var(--body);
  color: var(--text-dark);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.field textarea { resize: vertical; min-height: 120px; line-height: 1.6; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.success-state {
  padding: var(--s-6);
  text-align: center;
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: 4px;
}
.success-state svg { width: 40px; height: 40px; color: var(--accent); margin: 0 auto var(--s-4); }
.success-state h3 {
  font-family: var(--display);
  font-size: var(--text-xl);
  color: var(--text-dark);
  margin-bottom: var(--s-2);
}
.success-state p { font-size: var(--text-base); color: var(--text-sub); margin: 0; }

/* ==========================================================
   SPECS / TIMELINE / TABLE
   ========================================================== */
.spec-list { border-top: 1px solid var(--border); }
.spec-item {
  display: grid; grid-template-columns: 1fr 1.3fr;
  gap: var(--s-4);
  padding: var(--s-4) 0;
  border-bottom: 1px solid var(--border);
  font-size: var(--text-base);
}
.spec-item .label { color: var(--text-muted); font-family: var(--mono); font-size: var(--text-sm); }
.spec-item .value { color: var(--text-dark); font-weight: 500; }

.timeline { position: relative; padding-left: var(--s-6); }
.timeline::before {
  content: "";
  position: absolute; left: 0; top: var(--s-2); bottom: var(--s-2);
  width: 2px; background: var(--border);
}
.timeline-item { position: relative; padding-bottom: var(--s-6); }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute; left: calc(-1 * var(--s-6) - 5px); top: 6px;
  width: 12px; height: 12px;
  background: var(--bg);
  border: 2px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.timeline-year {
  font-family: var(--display);
  font-size: var(--text-xl); font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-bottom: var(--s-2);
}
.timeline-desc { font-size: var(--text-md); color: var(--text-sub); line-height: 1.75; margin: 0; }

/* ==========================================================
   INNER BANNER (内页)
   ========================================================== */
.inner-hero {
  padding: var(--s-9) 0 var(--s-8);
  background:
    linear-gradient(135deg, rgba(5,8,16,0.92) 0%, rgba(10,15,26,0.85) 100%),
    url("assets/lobby.jpg") center/cover no-repeat;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.inner-hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.inner-hero .wrap { position: relative; z-index: 1; }

.crumb {
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em; text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--s-4);
}
.crumb a { color: rgba(255,255,255,0.5); }
.crumb a:hover { color: var(--accent); }
.crumb .sep { margin: 0 var(--s-2); color: rgba(255,255,255,0.3); }

.inner-hero h1 {
  font-family: var(--display);
  font-size: var(--text-3xl);
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--s-3);
}
.inner-hero p {
  font-size: var(--text-md);
  color: rgba(255,255,255,0.65);
  max-width: 54ch;
  margin: 0;
}

/* ==========================================================
   FOOTER
   ========================================================== */
.foot {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.7);
  padding: var(--s-8) 0 var(--s-6);
  font-size: var(--text-sm);
  border-top: 1px solid var(--border-dark);
}
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--s-7);
  padding-bottom: var(--s-6);
  border-bottom: 1px solid var(--border-dark);
}
.foot-brand p {
  font-size: var(--text-sm); line-height: 1.8; margin: var(--s-4) 0 0;
  color: rgba(255,255,255,0.45);
  max-width: 42ch;
}
.foot-col h4 {
  font-family: var(--display);
  font-size: var(--text-base);
  color: #fff;
  font-weight: 500;
  margin-bottom: var(--s-4);
  letter-spacing: 0.04em;
}
.foot-col a {
  display: block;
  color: rgba(255,255,255,0.45);
  padding: 3px 0;
  font-size: var(--text-sm);
}
.foot-col a:hover { color: var(--accent); }
.foot-contact li {
  display: flex; gap: var(--s-3); align-items: flex-start;
  color: rgba(255,255,255,0.45);
  font-size: var(--text-sm);
  padding: 3px 0;
  list-style: none;
}
.foot-contact svg { width: 14px; height: 14px; flex-shrink: 0; margin-top: 4px; color: var(--accent); }

/* ==========================================================
   REVEAL (fail-open: 默认 visible)
   ========================================================== */
.reveal { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1 !important; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1 !important; } }
.reveal[data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity 700ms var(--ease), transform 700ms var(--ease); }
.reveal[data-reveal].is-in { opacity: 1; transform: none; }

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width: 1024px) {
  .menu { display: none; }
  .hotline { display: inline-flex; font-size: 0; padding: 8px; gap: 0; }
  .hotline svg { width: 18px; height: 18px; }
  .burger { display: block; }

  .hero-grid { grid-template-columns: 1fr; gap: var(--s-6); }
  .hero-data { max-width: 440px; }
  .parallel { grid-template-columns: 1fr; gap: var(--s-6); }
  .parallel.reverse > :first-child { order: 0; }
  .parallel.reverse > :last-child  { order: 0; }

  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .plan-grid { grid-template-columns: 1fr; }

  .cta-block .wrap { grid-template-columns: 1fr; gap: var(--s-5); }
  .cta-block .actions { justify-content: flex-start; }

  .foot-grid { grid-template-columns: 1fr 1fr; gap: var(--s-6); }
}

@media (max-width: 640px) {
  .feature-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: var(--s-5); }
  .section { padding-block: var(--s-6); }
  .hero { min-height: auto; padding-top: var(--s-8); }
  .hero-title { font-size: 40px; }
  .hero-actions .btn, .hero-actions .btn-outline { flex: 1; }
  .hd-title { font-size: var(--text-2xl); }
  .inner-hero { padding-block: var(--s-7); }
}

/* ==========================================================
   右侧悬浮咨询组件
   ========================================================== */
.floating-contact {
  position: fixed;
  right: clamp(12px, 2vw, 28px);
  bottom: clamp(24px, 4vh, 64px);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-end;
  pointer-events: none;
}
.floating-contact > * { pointer-events: auto; }

.fc-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.45), 0 0 0 4px rgba(59, 130, 246, 0.12);
  border: none;
  cursor: pointer;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease), background 220ms var(--ease);
  position: relative;
  text-decoration: none;
}
.fc-btn:hover {
  transform: translateY(-3px) scale(1.05);
  background: var(--accent-hover);
  box-shadow: 0 10px 28px rgba(59, 130, 246, 0.55), 0 0 0 4px rgba(59, 130, 246, 0.18);
}
.fc-btn:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }

.fc-btn svg { width: 22px; height: 22px; }

.fc-btn-label {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  white-space: nowrap;
  background: var(--bg-dark);
  color: #fff;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-family: var(--display);
  letter-spacing: 0.02em;
  opacity: 0;
  visibility: hidden;
  transition: opacity 180ms var(--ease), transform 180ms var(--ease), visibility 180ms;
  pointer-events: none;
}
.fc-btn-label::after {
  content: "";
  position: absolute;
  right: -5px;
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  width: 10px; height: 10px;
  background: var(--bg-dark);
}
.fc-btn:hover .fc-btn-label,
.fc-btn.is-open .fc-btn-label {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
}

/* 微信二维码 popup */
.fc-qr-popup {
  position: absolute;
  right: calc(100% + 14px);
  bottom: 0;
  width: 200px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(0,0,0,0.2), 0 0 0 1px rgba(0,0,0,0.06);
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(10px);
  transition: opacity 200ms var(--ease), transform 200ms var(--ease), visibility 200ms;
  text-align: center;
  pointer-events: none;
}
.fc-btn.is-open + .fc-qr-popup {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
  pointer-events: auto;
}
.fc-qr-popup::after {
  content: "";
  position: absolute;
  right: -6px;
  bottom: 18px;
  width: 12px; height: 12px;
  background: #fff;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.04);
  transform: rotate(45deg);
}
.fc-qr-popup img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  display: block;
}
.fc-qr-popup .qr-title {
  margin-top: 10px;
  font-size: 14px;
  font-family: var(--display);
  font-weight: 500;
  color: var(--text-dark);
}
.fc-qr-popup .qr-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

/* 微信按钮圆形 */
.fc-btn-wechat {
  background: linear-gradient(135deg, #07c160, #06ad56);
  box-shadow: 0 6px 20px rgba(7, 193, 96, 0.45), 0 0 0 4px rgba(7, 193, 96, 0.12);
}
.fc-btn-wechat:hover {
  background: linear-gradient(135deg, #06ad56, #059a4c);
  box-shadow: 0 10px 28px rgba(7, 193, 96, 0.55), 0 0 0 4px rgba(7, 193, 96, 0.18);
}

/* 移动端：底部横向排列 */
@media (max-width: 640px) {
  .floating-contact {
    right: 14px;
    bottom: 18px;
    flex-direction: row;
    gap: 12px;
  }
  .fc-btn { width: 46px; height: 46px; }
  .fc-btn svg { width: 20px; height: 20px; }
  .fc-btn-label { display: none; }
  .fc-qr-popup { bottom: auto; right: auto; left: 50%; top: calc(100% + 12px); transform: translateX(-50%) translateX(10px); }
  .fc-btn.is-open + .fc-qr-popup { transform: translateX(-50%) translateX(0); }
  .fc-qr-popup::after { right: auto; bottom: -6px; left: 50%; transform: translateX(-50%) rotate(-45deg); box-shadow: none; }
}

/* ==========================================================
   首页房源卡片区
   ========================================================== */
.home-plans {
  padding-block: var(--s-7);
  background: var(--bg);
}
.home-plans .hd-title { font-size: clamp(28px, 3.2vw, 40px); letter-spacing: -0.02em; }
.home-plan-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-4);
  margin-top: var(--s-6);
}
.home-plan-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: var(--s-5);
  transition: transform 280ms var(--ease), box-shadow 280ms var(--ease), border-color 280ms;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  text-decoration: none;
  color: inherit;
}
.home-plan-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 0;
  background: var(--accent);
  transition: height 320ms var(--ease);
}
.home-plan-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(59,130,246,0.12), 0 4px 12px rgba(0,0,0,0.04);
  border-color: var(--accent);
}
.home-plan-card:hover::before { height: 100%; }

.home-plan-card .plan-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 4px 10px;
  background: var(--accent-soft);
  border-radius: 4px;
  width: fit-content;
}
.home-plan-card .plan-tag.is-featured {
  background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(59,130,246,0.05));
  color: var(--accent-hover);
}
.home-plan-card .plan-tag::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.home-plan-card .plan-area {
  font-family: var(--display);
  font-size: clamp(34px, 4vw, 48px);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text-dark);
  line-height: 1;
}
.home-plan-card .plan-area small {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 4px;
  font-family: var(--body);
}
.home-plan-card h3 {
  font-size: var(--text-lg);
  font-family: var(--display);
  color: var(--text-dark);
  margin: 0;
}
.home-plan-card .plan-desc {
  font-size: var(--text-sm);
  color: var(--text-sub);
  line-height: 1.6;
  margin: 0;
}
.home-plan-card .plan-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--s-3);
  margin-top: auto;
  border-top: 1px dashed var(--border);
}
.home-plan-card .plan-price {
  font-family: var(--mono);
  font-size: var(--text-sm);
  color: var(--accent);
  font-weight: 500;
}
.home-plan-card .plan-floor {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.home-plan-card .arrow {
  position: absolute;
  bottom: var(--s-5);
  right: var(--s-5);
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
}
.home-plan-card:hover .arrow { opacity: 1; transform: translateX(0); }
.home-plan-card .arrow svg { width: 12px; height: 12px; }

@media (max-width: 1024px) {
  .home-plan-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .home-plan-grid { grid-template-columns: 1fr; }
  .home-plans { padding-block: var(--s-6); }
}

/* ==========================================================
   Hero 下方精选房源横条（深底 + 浅色卡）
   ========================================================== */
.hero-units {
  background: linear-gradient(180deg, rgba(5,8,16,1) 0%, rgba(5,8,16,0.96) 100%);
  padding: clamp(20px, 2.5vw, 32px) 0 clamp(28px, 3.5vw, 44px);
  position: relative;
}
.hero-units::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero-units-inner {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: auto 1fr 1fr 1fr auto;
  gap: clamp(10px, 1.5vw, 16px);
  align-items: stretch;
}
.hu-title {
  display: flex; flex-direction: column; justify-content: center; gap: 8px;
  padding-right: clamp(8px, 1vw, 16px);
  border-right: 1px solid rgba(255,255,255,0.12);
}
.hu-kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
}
.hu-count {
  font-family: var(--display);
  font-size: clamp(14px, 1.6vw, 18px);
  font-weight: 500;
  color: rgba(255,255,255,0.82);
}

.hu-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: clamp(12px, 1.5vw, 18px) clamp(14px, 1.8vw, 22px);
  text-decoration: none;
  color: inherit;
  transition: transform 250ms var(--ease), border-color 250ms, background 250ms;
  position: relative;
  min-height: 110px;
  display: flex; flex-direction: column; gap: 6px;
}
.hu-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  background: rgba(59,130,246,0.08);
}
.hu-card-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--accent);
  padding: 2px 8px;
  background: rgba(59,130,246,0.14);
  border-radius: 3px;
  width: fit-content;
}
.hu-card-area {
  font-family: var(--display);
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1;
}
.hu-card-area small {
  font-size: 13px;
  font-weight: 400;
  color: rgba(255,255,255,0.5);
  margin-left: 3px;
}
.hu-card-name {
  font-family: var(--display);
  font-size: clamp(13px, 1.5vw, 16px);
  font-weight: 500;
  color: rgba(255,255,255,0.9);
}
.hu-card-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.04em;
  margin-top: auto;
}

.hu-all {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  padding: 0 clamp(14px, 1.8vw, 22px);
  font-family: var(--display);
  font-size: clamp(13px, 1.4vw, 15px);
  font-weight: 500;
  transition: background 220ms var(--ease), transform 220ms var(--ease);
  white-space: nowrap;
}
.hu-all:hover { background: var(--accent-hover); transform: translateY(-3px); }
.hu-all svg { width: 20px; height: 20px; }

@media (max-width: 1024px) {
  .hero-units-inner {
    grid-template-columns: auto 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .hu-title { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.12); padding-right: 0; padding-bottom: 12px; grid-column: 1 / -1; flex-direction: row; align-items: center; gap: 16px; }
  .hu-all { grid-column: 1 / -1; flex-direction: row; gap: 8px; padding: 12px; }
}
@media (max-width: 640px) {
  .hero-units-inner { grid-template-columns: 1fr; gap: 10px; }
  .hu-title { grid-column: auto; }
  .hu-all { grid-column: auto; }
  .hu-card { min-height: 90px; }
}

/* ==========================================================
   联系我们 · 大尺寸微信二维码展示块
   ========================================================== */
.qr-big-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: var(--s-5) var(--s-5) var(--s-4);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  overflow: hidden;
}
.qr-big-head {
  display: flex; align-items: center; gap: var(--s-3);
  padding-bottom: var(--s-3);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--s-3);
}
.qr-big-icon {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, #07c160, #06ad56);
  color: #fff;
  display: grid; place-items: center;
  flex-shrink: 0;
}
.qr-big-icon svg { width: 22px; height: 22px; }
.qr-big-kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #07c160;
  margin-bottom: 2px;
}
.qr-big-title {
  font-family: var(--display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--text-dark);
}
.qr-big-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  border-radius: 10px;
  padding: clamp(18px, 3vw, 28px);
  display: grid; place-items: center;
  border: 1px dashed rgba(0,0,0,0.08);
}
.qr-big-img {
  width: 100%; height: 100%;
  object-fit: contain;
  border-radius: 6px;
  display: block;
}
.qr-big-foot {
  margin-top: var(--s-3);
  padding-top: var(--s-3);
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}
.qr-big-foot span:first-child {
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.qr-big-phone {
  font-family: var(--mono);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-dark) !important;
  letter-spacing: 0.04em;
}

/* ==========================================================
   首页 CTA · 小二维码卡片
   ========================================================== */
.cta-qr {
  display: flex; align-items: center; gap: var(--s-4);
  margin-top: var(--s-4);
  padding: var(--s-3) var(--s-4);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 10px;
  width: fit-content;
}
.cta-qr-img {
  width: 64px; height: 64px;
  border-radius: 6px;
  flex-shrink: 0;
  display: block;
  object-fit: cover;
}
.cta-qr-text {
  color: rgba(255,255,255,0.75);
  font-size: var(--text-sm);
  line-height: 1.5;
}
.cta-qr-text strong {
  color: #fff;
  font-family: var(--display);
  font-weight: 500;
  display: block;
  margin-bottom: 2px;
}

@media (max-width: 640px) {
  .cta-qr { width: 100%; }
}

/* ==========================================================
   FAQ · 常见问题
   ========================================================== */
.faq-list {
  max-width: 880px;
  margin: 0 auto;
  display: grid;
  gap: var(--s-3);
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: var(--s-4) var(--s-5);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.faq-item[open] {
  border-color: rgba(59,130,246,0.35);
  box-shadow: 0 4px 18px rgba(59,130,246,0.08);
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  font-family: var(--display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--text-dark);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--mono);
  font-size: 20px;
  color: var(--accent);
  line-height: 1;
  transition: transform var(--dur) var(--ease);
}
.faq-item[open] summary::after {
  content: "–";
}
.faq-item p {
  margin-top: var(--s-3);
  padding-top: var(--s-3);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  line-height: 1.9;
  font-size: var(--text-sm);
}
.faq-item p a {
  color: var(--accent);
  font-family: var(--mono);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.faq-item p strong { color: var(--text-dark); }

@media (max-width: 640px) {
  .faq-item { padding: var(--s-3) var(--s-4); }
  .faq-item summary { font-size: var(--text-base); }
}