/* ===== local fonts ===== */
@font-face { font-family: "Inter"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/inter-400.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/inter-500.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/inter-600.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 700; font-display: swap; src: url("../fonts/inter-700.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/jetbrainsmono-400.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/jetbrainsmono-500.woff2") format("woff2"); }
@font-face { font-family: "Noto Serif SC"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/noto-serif-sc-400.woff2") format("woff2"); unicode-range: U+4E00-9FFF, U+3000-303F, U+FF00-FFEF; }
@font-face { font-family: "Noto Serif SC"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/noto-serif-sc-500.woff2") format("woff2"); unicode-range: U+4E00-9FFF, U+3000-303F, U+FF00-FFEF; }
@font-face { font-family: "Noto Serif SC"; font-style: normal; font-weight: 700; font-display: swap; src: url("../fonts/noto-serif-sc-700.woff2") format("woff2"); unicode-range: U+4E00-9FFF, U+3000-303F, U+FF00-FFEF; }

/* ===== reset / variables ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #fffefb;
  --bg-soft: #f6f5f0;
  --bg-warm: #fdf6e7;
  --bg-dark: #0d1f1c;
  --text: #1a1f2c;
  --text-2: #495063;
  --text-3: #8a91a3;
  --border: #e7e2d6;
  --border-strong: #c8c2b0;

  --primary: #0f766e;
  --primary-dark: #115e59;
  --primary-light: #d1faf1;
  --accent: #ea580c;
  --accent-light: #fed7aa;
  --highlight: #fef08a;
  --green: #15803d;

  --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: "Noto Serif SC", "STSong", "SimSun", Georgia, serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  --max: 1180px;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; color: inherit; }
ul, ol { list-style: none; }
em { font-style: normal; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* 跳过链接 */
.skip-link {
  position: absolute; top: -40px; left: 0;
  background: var(--text); color: #fff;
  padding: 8px 14px; z-index: 999;
  text-decoration: none;
}
.skip-link:focus { top: 0; }

/* ===== topbar ===== */
.topbar {
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 13px;
}
.topbar-inner {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 24px; gap: 14px; flex-wrap: wrap;
}
.topbar-inner a {
  font-weight: 600;
  color: var(--highlight);
}
.topbar-inner a:hover { text-decoration: underline; }

/* ===== header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,254,251,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 700; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px;
  background: var(--primary); color: #fff;
  border-radius: 6px; font-size: 16px;
}
.brand-name b { color: var(--primary); }

.primary-nav { display: flex; gap: 2px; flex: 1; justify-content: center; }
.primary-nav a {
  padding: 8px 14px;
  font-size: 14px;
  color: var(--text-2);
  border-radius: 6px;
  font-weight: 500;
  transition: all .15s;
}
.primary-nav a:hover { background: var(--bg-soft); color: var(--primary); }
.primary-nav a.active { color: var(--primary); background: var(--primary-light); }

.nav-toggle { display: none; font-size: 22px; color: var(--text); }

/* ===== breadcrumb ===== */
.breadcrumb {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-2);
}
.breadcrumb ol {
  display: flex; gap: 8px; flex-wrap: wrap;
  padding: 10px 0;
}
.breadcrumb li::after {
  content: "›";
  margin-left: 8px;
  color: var(--text-3);
}
.breadcrumb li:last-child::after { content: ""; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb [aria-current="page"] { color: var(--text); font-weight: 600; }

/* ===== buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 11px 22px;
  font-size: 14px; font-weight: 600;
  border-radius: 8px;
  transition: all .15s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(15,118,110,0.25);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(15,118,110,0.35); }
.btn-outline {
  border: 1.5px solid var(--text);
  color: var(--text);
}
.btn-outline:hover { background: var(--text); color: #fff; }
.btn-outline-light {
  border: 1.5px solid #fff;
  color: #fff;
}
.btn-outline-light:hover { background: #fff; color: var(--primary); }
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-sm { padding: 7px 14px; font-size: 13px; }

/* ===== hero ===== */
.hero {
  padding: 70px 0 90px;
  background:
    radial-gradient(ellipse at top right, var(--bg-warm), transparent 50%),
    var(--bg);
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 50px;
  align-items: start;
}
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 14px;
  font-size: 13px; color: var(--text-3);
  margin-bottom: 24px;
}
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 600;
}
.badge-soft { background: var(--accent-light); color: var(--accent); }

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4.5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 24px;
  color: var(--text);
}
.hero h1 em {
  background: linear-gradient(180deg, transparent 60%, var(--highlight) 60%);
  padding: 0 4px;
}
.hero-lead {
  font-size: 17px;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 640px;
}
.hero-lead strong { color: var(--text); font-weight: 700; }
.hero-cta { display: flex; gap: 14px; margin-bottom: 28px; flex-wrap: wrap; }
.hero-trust {
  display: flex; gap: 24px; flex-wrap: wrap;
  font-size: 13.5px;
  color: var(--text-2);
}
.hero-trust li { display: flex; align-items: center; gap: 6px; }

.hero-stat {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  position: sticky; top: 90px;
}
.stat-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.05em;
  margin-bottom: 18px;
  font-weight: 500;
}
.hero-stat dl > div {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px dashed var(--border);
}
.hero-stat dl > div:last-child { border-bottom: none; }
.hero-stat dt {
  font-size: 13.5px;
  color: var(--text-2);
}
.hero-stat dd {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}
.hero-stat dd small { font-size: 13px; color: var(--text-3); font-weight: 400; margin-left: 2px; }
.hero-stat dd sup { font-size: 11px; color: var(--accent); font-weight: 600; margin-left: 2px; }
.stat-foot {
  font-size: 12px; color: var(--text-3);
  margin-top: 14px; padding-top: 14px;
  border-top: 1px solid var(--border);
}

/* ===== 长文双栏 ===== */
.article-wrap {
  background: var(--bg);
  padding: 80px 0;
  border-top: 1px solid var(--border);
}
.article-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 60px;
  align-items: start;
}
.toc {
  position: sticky; top: 90px;
  font-size: 14px;
}
.toc-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  font-weight: 500;
  text-transform: uppercase;
}
.toc ol { counter-reset: toc; }
.toc li {
  counter-increment: toc;
  margin-bottom: 6px;
  position: relative;
}
.toc li a {
  display: block;
  padding: 6px 0 6px 32px;
  color: var(--text-2);
  border-left: 1px solid var(--border);
  margin-left: 8px;
  transition: all .15s;
}
.toc li a::before {
  content: counter(toc, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
}
.toc li a:hover, .toc li a.active {
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 600;
}
.toc-cta {
  margin-top: 24px;
  padding: 18px;
  background: var(--bg-warm);
  border-radius: 8px;
}
.toc-cta p {
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 10px;
}

.article {
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.95;
  color: var(--text);
  max-width: 720px;
}
.article-head { margin-bottom: 36px; }
.article-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 14px;
}
.article-deck {
  font-size: 16px;
  color: var(--text-2);
  font-style: italic;
}
.article h3 {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 700;
  margin: 40px 0 14px;
  padding-left: 12px;
  border-left: 4px solid var(--primary);
  line-height: 1.4;
  scroll-margin-top: 90px;
}
.article p { margin-bottom: 18px; }
.article p strong { background: rgba(254,240,138,0.5); padding: 0 2px; font-weight: 700; color: var(--text); }
.prose-list, .prose-ol {
  margin: 0 0 22px;
  padding-left: 0;
}
.prose-list li, .prose-ol li {
  position: relative;
  padding: 6px 0 6px 28px;
  font-size: 16px;
}
.prose-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}
.prose-ol { counter-reset: prose; }
.prose-ol li {
  counter-increment: prose;
  padding-left: 36px;
}
.prose-ol li::before {
  content: counter(prose, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 2px 6px;
  border-radius: 3px;
  line-height: 1.2;
}
.callout {
  margin: 28px 0;
  padding: 24px 26px;
  background: var(--bg-warm);
  border-left: 4px solid var(--accent);
  border-radius: 0 8px 8px 0;
}
.callout blockquote {
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.7;
  font-style: italic;
  color: var(--text);
  margin-bottom: 8px;
}
.callout figcaption {
  font-size: 13px;
  color: var(--text-2);
  font-family: var(--font-sans);
}

/* ===== price table ===== */
.table-wrap {
  overflow-x: auto;
  margin: 16px 0 28px;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.price-table {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 14px;
  border-collapse: collapse;
  background: var(--bg);
}
.price-table caption {
  text-align: left;
  padding: 14px 18px;
  background: var(--bg-soft);
  font-size: 13px;
  color: var(--text-2);
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  caption-side: top;
}
.price-table th, .price-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.price-table thead {
  background: var(--bg-soft);
}
.price-table thead th {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.price-table tbody tr:hover { background: var(--bg-soft); }
.price-table tbody tr:last-child td { border-bottom: none; }
.price-table mark {
  background: var(--highlight);
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 700;
}
.price-table a {
  color: var(--primary);
  font-weight: 600;
  border-bottom: 1px solid currentColor;
}

/* ===== panels ===== */
.panel { padding: 90px 0; }
.panel-light { background: var(--bg); }
.panel-soft { background: var(--bg-soft); }
.panel-dark { background: var(--bg-dark); color: #fff; }
.panel-dark .panel-sub { color: rgba(255,255,255,0.7); }
.panel-dark .eyebrow { color: rgba(255,255,255,0.5); }
.panel-dark h2 em { color: var(--highlight); background: none; }

.panel-head { margin-bottom: 50px; max-width: 740px; }
.panel-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--primary);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  text-transform: uppercase;
  font-weight: 500;
}
.panel-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 14px;
}
.panel-head h2 em {
  background: linear-gradient(180deg, transparent 60%, var(--highlight) 60%);
  padding: 0 4px;
}
.panel-sub {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 600px;
}
.panel-sub strong { color: var(--text); font-weight: 700; }

/* ===== rent cards (混合布局：大卡 + 表单) ===== */
.rent-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}
.rent-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 30px;
  transition: all .2s;
  position: relative;
}
.rent-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(15,118,110,0.12);
}
.rent-flag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 18px;
  font-weight: 600;
}
.rent-flag.green { background: var(--primary-light); color: var(--primary); }
.rent-flag.orange { background: var(--accent-light); color: var(--accent); }
.rent-price {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--text-2);
  margin-bottom: 4px;
}
.rent-price b {
  font-size: 48px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  margin-right: 4px;
}
.rent-price small { font-size: 14px; color: var(--text-3); }
.rent-energy {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 14px;
}
.rent-card p:last-child {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}

/* ===== form card ===== */
.form-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}
.form-h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.form-tip {
  padding: 14px 18px;
  background: var(--primary-light);
  border-left: 3px solid var(--primary);
  border-radius: 0 8px 8px 0;
  font-size: 14px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 8px;
}
.form-tip strong { color: var(--primary-dark); font-weight: 700; }
.form-label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  margin: 22px 0 10px;
}
.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg);
  border: 1.5px solid var(--border-strong);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text);
  transition: all .15s;
}
.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15,118,110,0.1);
}
.form-input.readonly { background: var(--bg-soft); font-weight: 700; color: var(--primary); }

.pill-group { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  padding: 9px 16px;
  background: var(--bg);
  border: 1.5px solid var(--border-strong);
  border-radius: 50px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-2);
  transition: all .15s;
}
.pill:hover { border-color: var(--primary); color: var(--primary); }
.pill.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.pill-custom { color: var(--accent); border-color: var(--accent-light); }
.pill-custom.active { background: var(--accent); border-color: var(--accent); }

/* pay box */
.pay {
  margin-top: 28px;
  padding: 22px;
  background: var(--bg-soft);
  border-radius: 10px;
}
.pay-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 0;
  border-bottom: 1px dashed var(--border-strong);
  gap: 14px; flex-wrap: wrap;
}
.pay-row:last-of-type { border-bottom: none; }
.pay-row > span { font-size: 13.5px; color: var(--text-2); }
.pay-row b { font-size: 15px; font-weight: 700; color: var(--text); }
.pay-row b[data-pay] {
  font-family: var(--font-serif);
  font-size: 26px;
  color: var(--primary);
}
.pay-row code {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  background: var(--bg);
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-2);
  word-break: break-all;
  flex-wrap: wrap;
}
.copy-btn {
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  white-space: nowrap;
  transition: background .15s;
}
.copy-btn:hover { background: var(--primary-dark); }

.pay-qr {
  display: flex; align-items: center; gap: 18px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--border-strong);
}
.pay-qr img {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  background: #fff;
  flex-shrink: 0;
}
.pay-qr p { font-size: 13px; color: var(--text-2); line-height: 1.7; }
.pay-qr p a { color: var(--primary); border-bottom: 1px solid currentColor; }

/* ===== scene magazine ===== */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
.scene-card {
  grid-column: span 2;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: all .2s;
}
.scene-card:hover { border-color: var(--primary); transform: translateY(-3px); }
.scene-card:first-child { grid-column: span 3; background: var(--bg-warm); }
.scene-card:nth-child(2) { grid-column: span 3; }
.scene-card.scene-feature { grid-column: span 6; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; }
.scene-card.scene-feature p, .scene-card.scene-feature .scene-suggest strong { color: rgba(255,255,255,0.85); }
.scene-card.scene-feature .scene-num { color: var(--highlight); }
.scene-card.scene-feature h3 { color: #fff; }
.scene-num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--primary);
  margin-bottom: 14px;
  font-weight: 700;
}
.scene-card h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.scene-card p {
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 12px;
}
.scene-suggest strong { color: var(--primary); }

/* ===== rate strip ===== */
.rate-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--bg-soft);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 28px;
  border: 1px solid var(--border);
}
.rate-strip li {
  padding: 22px 24px;
  border-right: 1px solid var(--border);
}
.rate-strip li:last-child { border-right: none; }
.rate-strip li span {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  text-transform: uppercase;
}
.rate-strip li b {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

/* swap */
.swap-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 18px;
  align-items: end;
}
.swap-arrow { font-size: 26px; color: var(--primary); padding-bottom: 14px; }
.swap-input { position: relative; }
.swap-input input { padding-right: 64px; font-size: 18px; font-weight: 700; padding: 14px 64px 14px 16px; }
.swap-suffix {
  position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  font-family: var(--font-mono); font-size: 13px; font-weight: 600;
  color: var(--text-3);
}

/* ===== agent dark grid ===== */
.agent-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255,255,255,0.1);
  border-left: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 32px;
}
.agent-grid article {
  padding: 32px 28px;
  border-right: 1px solid rgba(255,255,255,0.1);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  transition: background .2s;
}
.agent-grid article:hover { background: rgba(255,255,255,0.04); }
.agent-grid h3 {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}
.agent-grid p {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
}
.agent-cta { text-align: center; }

/* ===== faq ===== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-list { margin-top: 30px; }
.faq-list details {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 12px;
  transition: border-color .15s;
}
.faq-list details:hover, .faq-list details[open] { border-color: var(--primary); }
.faq-list summary {
  cursor: pointer;
  padding: 22px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  position: relative;
  padding-right: 50px;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  font-weight: 300;
  color: var(--primary);
  line-height: 1;
  transition: transform .2s;
}
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p {
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.85;
}
.faq-list details p a { color: var(--primary); border-bottom: 1px solid currentColor; }
.faq-list details p strong { background: rgba(254,240,138,0.5); padding: 0 2px; color: var(--text); }

/* ===== post grid ===== */
.post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.post-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all .2s;
}
.post-card:hover { transform: translateY(-3px); border-color: var(--primary); box-shadow: 0 12px 28px rgba(15,118,110,0.1); }
.post-thumb {
  height: 140px;
  background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
  display: flex; align-items: center; justify-content: center;
  font-size: 56px;
}
.post-card > *:not(.post-thumb) { margin-left: 24px; margin-right: 24px; }
.post-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 10px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50px;
  margin-top: 18px;
  font-weight: 600;
}
.post-card h3 {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  margin: 12px 24px 10px;
  line-height: 1.4;
}
.post-card h3 a:hover { color: var(--primary); }
.post-card > p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}
.post-meta {
  font-family: var(--font-mono);
  font-size: 12px !important;
  color: var(--text-3) !important;
  margin: 16px 24px 24px !important;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

/* ===== CTA banner ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 80px 0;
  text-align: center;
}
.cta-banner h2 {
  font-family: var(--font-serif);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-banner p {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
}
.cta-banner .btn-primary {
  background: #fff;
  color: var(--primary);
}
.cta-banner .btn-primary:hover { background: var(--highlight); color: var(--text); }
.cta-buttons { display: inline-flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

/* ===== contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  font-style: normal;
}
.contact-grid > div {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  transition: all .2s;
}
.contact-grid > div:hover { border-color: var(--primary); transform: translateY(-3px); }
.contact-grid h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}
.contact-grid p {
  font-size: 13.5px;
  color: var(--text-2);
  margin-bottom: 18px;
}
.contact-grid a {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  padding: 10px 22px;
  background: var(--primary-light);
  border-radius: 50px;
  transition: all .15s;
}
.contact-grid a:hover { background: var(--primary); color: #fff; }

/* ===== footer ===== */
.site-footer {
  background: var(--bg-soft);
  padding: 70px 0 30px;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.site-footer .brand { margin-bottom: 14px; }
.footer-grid > div:first-child p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}
.footer-grid h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  text-transform: uppercase;
  font-weight: 500;
}
.footer-grid ul li {
  padding: 5px 0;
  font-size: 13.5px;
  color: var(--text-2);
}
.footer-grid a:hover { color: var(--primary); }
.keyword-list { display: flex; flex-wrap: wrap; gap: 6px; }
.keyword-list li {
  padding: 0 !important;
}
.keyword-list a {
  display: inline-block;
  font-size: 12px;
  padding: 4px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50px;
  color: var(--text-2);
  transition: all .15s;
}
.keyword-list a:hover { background: var(--primary-light); border-color: var(--primary-light); color: var(--primary); }
.footer-bottom {
  margin-top: 26px;
  display: flex; justify-content: space-between;
  font-size: 13px;
  color: var(--text-3);
  flex-wrap: wrap; gap: 12px;
}
.status { display: inline-flex; align-items: center; gap: 8px; color: var(--text-2); }
.dot-green {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(21,128,61,0.15);
}

/* ===== toast ===== */
.toast {
  position: fixed; bottom: 32px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--text); color: #fff;
  padding: 11px 22px; border-radius: 8px;
  font-size: 13.5px;
  opacity: 0; pointer-events: none;
  transition: all .2s;
  z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ===== responsive ===== */
@media (max-width: 1000px) {
  .hero-grid, .article-grid { grid-template-columns: 1fr; }
  .toc, .hero-stat { position: static; }
  .toc { margin-bottom: 32px; }
  .article { max-width: none; }
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .scene-card, .scene-card:first-child, .scene-card:nth-child(2) { grid-column: span 1; }
  .scene-card.scene-feature { grid-column: span 2; }
  .post-grid { grid-template-columns: repeat(2, 1fr); }
  .agent-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .rate-strip { grid-template-columns: repeat(2, 1fr); }
  .rate-strip li:nth-child(2) { border-right: none; }
  .swap-row { grid-template-columns: 1fr; }
  .swap-arrow { transform: rotate(90deg); padding: 0; text-align: center; }
  .primary-nav {
    position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 10px 24px; display: none;
  }
  .primary-nav.open { display: flex; }
  .primary-nav a { padding: 12px 14px; }
  .nav-toggle { display: block; }
}
@media (max-width: 600px) {
  .panel, .article-wrap, .hero { padding: 60px 0; }
  .container { padding: 0 18px; }
  .rent-grid, .scene-grid, .post-grid, .agent-grid, .contact-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
  .scene-card.scene-feature { grid-column: span 1; }
  .rate-strip { grid-template-columns: 1fr; }
  .rate-strip li { border-right: none !important; border-bottom: 1px solid var(--border); }
  .rate-strip li:last-child { border-bottom: none; }
  .form-card { padding: 22px; }
  .topbar-inner { justify-content: center; text-align: center; }
  .hero-meta { gap: 8px 14px; }
}