/* ==========================================================================
   Cyberwisdom Group — Design System
   Consulting-forward. Two engines, two signal colors:
   Enterprise AI (cool cyan)  |  Enterprise Learning (warm gold)
   ========================================================================== */

:root {
  --ink-900: #060B18;
  --ink-800: #0A1124;
  --ink-700: #101A33;
  --ink-600: #18234A;
  --ink-500: #243257;
  --line: rgba(11, 18, 32, 0.11);
  --line-strong: rgba(11, 18, 32, 0.20);

  --paper: #FFFFFF;
  --paper-2: #F4F6FB;
  --paper-3: #E9EDF6;

  --text-hi: #0B1220;
  --text-body: #3D4759;
  --text-mute: #6B7688;
  --text-on-dark: #FFFFFF;
  --text-on-dark-2: rgba(255, 255, 255, 0.72);
  --text-on-dark-3: rgba(255, 255, 255, 0.52);

  --ai-500: #2E7DF6;
  --ai-400: #5B9BFF;
  --ai-300: #8FBBFF;
  --ai-glow: rgba(46, 125, 246, 0.35);

  --lr-500: #E0A03A;
  --lr-400: #F0BC6B;
  --lr-300: #F7D6A3;
  --lr-glow: rgba(224, 160, 58, 0.32);

  --accent: #00C2A8;
  --accent-2: #6FE3CF;

  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 20px;

  --shadow-s: 0 1px 2px rgba(11, 18, 32, 0.06), 0 4px 12px rgba(11, 18, 32, 0.05);
  --shadow-m: 0 2px 6px rgba(11, 18, 32, 0.07), 0 16px 40px rgba(11, 18, 32, 0.09);

  --maxw: 1240px;
  --gutter: 28px;

  --font-sans: "Inter", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-serif: "Newsreader", "Iowan Old Style", Georgia, "Songti SC", serif;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 0.42s;
}

/* 深色区块重定义边框色，使其在深底上可见 */
.dark, .hero, .phero, .cta-band, .footer, .stats, .stat,
.header.dark-mode, .card.dark-card, .dark-section {
  --line: rgba(255, 255, 255, 0.13);
  --line-strong: rgba(255, 255, 255, 0.30);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16.5px;
  line-height: 1.68;
  color: var(--text-body);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
h1, h2, h3, h4, h5 {
  color: var(--text-hi);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -0.022em;
  margin: 0 0 0.5em;
  font-family: var(--font-sans);
}
h1 { font-size: clamp(2.35rem, 4.6vw, 4rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(1.85rem, 3.1vw, 2.75rem); letter-spacing: -0.03em; }
h3 { font-size: clamp(1.2rem, 1.6vw, 1.45rem); }
h4 { font-size: 1.05rem; }
p { margin: 0 0 1.1em; }
ul, ol { margin: 0 0 1.1em; padding-left: 1.15em; }
li { margin-bottom: 0.4em; }
strong { color: var(--text-hi); font-weight: 600; }
::selection { background: var(--ai-500); color: #fff; }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.wrap-narrow { max-width: 900px; }
.section { padding: 104px 0; }
.section-sm { padding: 64px 0; }
.section-lg { padding: 140px 0; }
.dark { background: var(--ink-900); color: var(--text-on-dark-2); }
.dark h1, .dark h2, .dark h3, .dark h4 { color: var(--text-on-dark); }
.dark strong { color: #fff; }
.paper-2 { background: var(--paper-2); }
.hr { height: 1px; background: var(--line); border: 0; margin: 0; }

/* ---------- Eyebrow ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--text-mute); margin-bottom: 22px;
}
.eyebrow::before {
  content: ""; width: 22px; height: 2px; background: var(--ai-500); border-radius: 2px;
}
.dark .eyebrow { color: var(--text-on-dark-3); }
.eyebrow.ai::before { background: var(--ai-400); }
.eyebrow.lr::before { background: var(--lr-400); }
.eyebrow.accent::before { background: var(--accent); }

/* ---------- Lead ---------- */
.lead { font-size: 1.12rem; line-height: 1.72; color: var(--text-body); }
.dark .lead { color: var(--text-on-dark-2); }
.lead-lg { font-size: 1.24rem; line-height: 1.66; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 26px; border-radius: 100px;
  font-size: 0.92rem; font-weight: 600; letter-spacing: 0.005em;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
              background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--ai-500); color: #fff; box-shadow: 0 6px 20px var(--ai-glow); }
.btn-primary:hover { background: #1a6ae0; box-shadow: 0 12px 34px var(--ai-glow); }
.btn-gold { background: var(--lr-500); color: #241503; box-shadow: 0 6px 20px var(--lr-glow); }
.btn-gold:hover { background: #edae4c; box-shadow: 0 12px 34px var(--lr-glow); }
.btn-ghost { border: 1px solid var(--line-strong); color: var(--text-hi); background: transparent; }
.btn-ghost:hover { border-color: var(--text-hi); background: var(--paper-2); }
.dark .btn-ghost, .hero .btn-ghost, .phero .btn-ghost, .cta-band .btn-ghost,
.header.dark-mode .btn-ghost { color: #fff; border-color: rgba(255,255,255,0.35); background: transparent; }
.dark .btn-ghost:hover, .hero .btn-ghost:hover, .phero .btn-ghost:hover, .cta-band .btn-ghost:hover,
.header.dark-mode .btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,0.12); }
.btn .arr { transition: transform var(--dur) var(--ease); }
.btn:hover .arr { transform: translateX(4px); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

/* ---------- Cards ---------- */
.card {
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius-m); padding: 30px;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-m); border-color: var(--line-strong); }
.dark .card { background: rgba(255,255,255,0.035); border-color: var(--line); }
.dark .card:hover { background: rgba(255,255,255,0.055); border-color: var(--line-strong); box-shadow: none; }
.card h3 { margin-bottom: 0.45em; }
.card p:last-child { margin-bottom: 0; }

/* 深色卡片：把排版色标映射为浅色，嵌套组件（手风琴、列表、表格）自动可读 */
.card.on-dark {
  --text-hi: #fff;
  --text-body: var(--text-on-dark-2);
  --text-mute: var(--text-on-dark-3);
  --line: rgba(255, 255, 255, 0.13);
  --line-strong: rgba(255, 255, 255, 0.28);
}
.card.on-dark .acc-head { color: #fff; }
.card.on-dark .acc-head:hover { color: var(--accent-2); }
.card.on-dark .acc-head .plus::before,
.card.on-dark .acc-head .plus::after { background: rgba(255, 255, 255, 0.55); }
.card.on-dark .acc-item.open .acc-head .plus::before { background: var(--accent); }
.card-link { display: block; color: inherit; text-decoration: none; }
.card-link:hover { text-decoration: none; }
.card-more {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 20px;
  font-size: 0.85rem; font-weight: 600; color: var(--ai-500);
}
.card-link:hover .card-more .arr { transform: translateX(4px); }
.card-more .arr { transition: transform var(--dur) var(--ease); }
.card-link::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.card-pad-lg { padding: 40px; }
.card-num {
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em;
  color: var(--ai-500); margin-bottom: 16px; display: block;
}
.card-num.lr { color: var(--lr-500); }

/* Icon tile */
.ico {
  width: 46px; height: 46px; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(140deg, rgba(46,125,246,0.14), rgba(46,125,246,0.05));
  color: var(--ai-500); margin-bottom: 20px;
}
.ico.lr { background: linear-gradient(140deg, rgba(224,160,58,0.16), rgba(224,160,58,0.05)); color: var(--lr-500); }
.ico svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Grids ---------- */
.grid { display: grid; gap: 24px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.g5 { grid-template-columns: repeat(5, 1fr); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split-40 { grid-template-columns: 0.9fr 1.1fr; }
.split-60 { grid-template-columns: 1.15fr 0.85fr; }
.sticky-side { position: sticky; top: 110px; align-self: start; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,0.16); border: 1px solid rgba(255,255,255,0.16); border-radius: var(--radius-m); overflow: hidden; }
.stat { background: var(--ink-900); padding: 38px 30px; }
.stat .n {
  font-size: 2.5rem; font-weight: 650; letter-spacing: -0.04em; line-height: 1;
  background: linear-gradient(120deg, #fff, #9DBBEE); -webkit-background-clip: text; background-clip: text; color: transparent;
  display: block; margin-bottom: 10px;
}
.stat .l { font-size: 0.84rem; color: var(--text-on-dark-3); line-height: 1.5; display: block; }
.stat.gold .n { background: linear-gradient(120deg, #fff, #F3CE93); -webkit-background-clip: text; background-clip: text; }

/* ---------- Header / nav ---------- */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}
.header.scrolled { background: rgba(255,255,255,0.92); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom-color: var(--line); --line: rgba(11,18,32,0.11); --line-strong: rgba(11,18,32,0.20); }
.header.dark-mode { background: rgba(6,11,24,0.7); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
.header.scrolled.dark-mode { background: rgba(6,11,24,0.94); }
.header-inner { display: flex; align-items: center; gap: 22px; height: 76px; }
.logo { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.logo-mark {
  width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--ai-500) 0%, #6D4DF6 52%, var(--lr-500) 100%);
  display: grid; place-items: center; box-shadow: 0 4px 14px rgba(46,125,246,0.3);
}
.logo-mark svg { width: 19px; height: 19px; fill: #fff; }
.logo-text { line-height: 1.1; }
.logo-text b { display: block; font-size: 1.02rem; font-weight: 650; letter-spacing: -0.02em; color: var(--text-hi); }
.header.dark-mode .logo-text b { color: #fff; }
.header.scrolled .logo-text b { color: var(--text-hi); }
.header.scrolled .logo-text span { color: var(--text-mute); }
.logo-text span { font-size: 0.62rem; letter-spacing: 0.19em; text-transform: uppercase; color: var(--text-mute); }
.header.dark-mode .logo-text span { color: var(--text-on-dark-3); }

.nav { display: flex; align-items: center; gap: 1px; margin-left: auto; }
.nav a {
  padding: 9px 11px; border-radius: 8px; font-size: 0.875rem; font-weight: 500;
  color: var(--text-body); transition: color 0.2s, background 0.2s; position: relative;
  white-space: nowrap;
}
.nav a:hover { color: var(--text-hi); background: rgba(11,18,32,0.05); }
.nav a.active { color: var(--ai-500); }
.header.dark-mode .nav a { color: var(--text-on-dark-2); }
.header.dark-mode .nav a:hover, .header.dark-mode .nav a.active { color: #fff; background: rgba(255,255,255,0.09); }
.nav .has-drop { position: relative; }
.nav .drop {
  position: absolute; top: calc(100% + 12px); left: 0; min-width: 330px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-m);
  box-shadow: var(--shadow-m); padding: 10px; opacity: 0; visibility: hidden;
  transform: translateY(-8px); transition: all 0.26s var(--ease);
}
.nav .has-drop:hover .drop, .nav .has-drop:focus-within .drop { opacity: 1; visibility: visible; transform: translateY(0); }
.drop a { display: block; padding: 11px 14px; border-radius: 8px; }
.drop a:hover { background: var(--paper-2); }
.drop .d-t { display: block; font-weight: 600; color: var(--text-hi); font-size: 0.9rem; }
.drop .d-s { display: block; font-size: 0.8rem; color: var(--text-mute); margin-top: 2px; }
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-cta .btn { padding: 11px 20px; font-size: 0.86rem; }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; align-items: center; justify-content: center; }
.nav-toggle span { display: block; width: 19px; height: 1.7px; background: var(--text-hi); position: relative; transition: 0.3s; }
.header.dark-mode .nav-toggle span { background: #fff; }
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 19px; height: 1.7px; background: inherit; transition: 0.3s;
}
.nav-toggle span::before { top: -6px; } .nav-toggle span::after { top: 6px; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--ink-900); color: var(--text-on-dark-2); padding: 168px 0 110px; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(760px 460px at 78% 8%, rgba(46,125,246,0.30), transparent 62%),
    radial-gradient(620px 420px at 12% 92%, rgba(224,160,58,0.20), transparent 62%),
    radial-gradient(520px 320px at 45% 45%, rgba(109,77,246,0.18), transparent 70%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; opacity: 0.30; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 78% 62% at 50% 34%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 78% 62% at 50% 34%, #000 30%, transparent 78%);
}
.hero > * { position: relative; z-index: 2; }
.hero h1 { color: #fff; max-width: 17ch; }
.hero h1 .grad {
  background: linear-gradient(100deg, #8FBBFF 0%, #C7B4FF 42%, #F7D6A3 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead { max-width: 62ch; margin-top: 8px; color: var(--text-on-dark-2); }
.hero p { color: var(--text-on-dark-2); }
.hero strong { color: #fff; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 34px; margin-top: 44px; padding-top: 30px; border-top: 1px solid var(--line); }
.hero-meta div .k { font-size: 1.55rem; font-weight: 650; color: #fff; letter-spacing: -0.03em; display: block; }
.hero-meta div .v { font-size: 0.8rem; color: var(--text-on-dark-3); }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px; padding: 8px 16px 8px 8px;
  border: 1px solid var(--line-strong); border-radius: 100px; font-size: 0.79rem;
  color: var(--text-on-dark-2); margin-bottom: 28px; background: rgba(255,255,255,0.04);
}
.hero-badge b {
  background: var(--accent); color: #04241F; font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.08em; padding: 3px 9px; border-radius: 100px; text-transform: uppercase;
}

/* ---------- Page hero ---------- */
.phero { position: relative; background: var(--ink-900); color: var(--text-on-dark-2); padding: 150px 0 84px; overflow: hidden; }
.phero::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(680px 380px at 82% 12%, rgba(46,125,246,0.26), transparent 62%),
              radial-gradient(520px 340px at 10% 90%, rgba(224,160,58,0.16), transparent 62%);
}
.phero.gold::before { background: radial-gradient(680px 380px at 82% 12%, rgba(224,160,58,0.26), transparent 62%),
              radial-gradient(520px 340px at 10% 90%, rgba(46,125,246,0.14), transparent 62%); }
.phero > * { position: relative; z-index: 2; }
.phero h1 { color: #fff; max-width: 20ch; }
.phero .lead { max-width: 60ch; color: var(--text-on-dark-2); }
.phero p { color: var(--text-on-dark-2); }
.crumbs { font-size: 0.8rem; color: var(--text-on-dark-3); margin-bottom: 22px; }
.crumbs a:hover { color: #fff; }

/* ---------- Feature list ---------- */
.flist { display: grid; gap: 2px; background: var(--line); border-radius: var(--radius-m); overflow: hidden; border: 1px solid var(--line); }
.flist-item { background: var(--paper); padding: 26px 30px; display: flex; gap: 18px; align-items: flex-start; }
.dark .flist-item { background: rgba(255,255,255,0.03); }
.flist-item .tick { width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0; margin-top: 2px; display: grid; place-items: center; background: rgba(0,194,168,0.13); color: var(--accent); font-size: 0.72rem; }
.flist-item h4 { margin-bottom: 4px; }
.flist-item p { margin: 0; font-size: 0.93rem; color: var(--text-mute); }
.dark .flist-item p { color: var(--text-on-dark-3); }

/* ---------- Steps ---------- */
.steps { display: grid; gap: 0; counter-reset: s; }
.step { display: grid; grid-template-columns: 76px 1fr; gap: 26px; padding: 30px 0; border-top: 1px solid var(--line); }
.step:last-child { border-bottom: 1px solid var(--line); }
.step .n { font-size: 2.1rem; font-weight: 650; color: var(--line-strong); letter-spacing: -0.04em; line-height: 1; }
.dark .step .n { color: rgba(255,255,255,0.16); }
.step h4 { margin-bottom: 6px; }
.step p { margin: 0; color: var(--text-mute); }
.dark .step p { color: var(--text-on-dark-3); }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; border-bottom: 1px solid var(--line); margin-bottom: 40px; }
.tab {
  padding: 14px 22px; font-size: 0.92rem; font-weight: 600; color: var(--text-mute);
  border-bottom: 2px solid transparent; margin-bottom: -1px; transition: 0.25s; position: relative;
}
.tab:hover { color: var(--text-hi); }
.tab.active { color: var(--ai-500); border-bottom-color: var(--ai-500); }
.tab.gold.active { color: var(--lr-500); border-bottom-color: var(--lr-500); }
.tab-panel { display: none; animation: fadeUp 0.5s var(--ease); }
.tab-panel.active { display: block; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* ---------- Accordion ---------- */
.acc { border-top: 1px solid var(--line); }
.acc-item { border-bottom: 1px solid var(--line); }
.acc-head {
  width: 100%; text-align: left; padding: 24px 0; display: flex; align-items: center;
  gap: 18px; font-size: 1.06rem; font-weight: 600; color: var(--text-hi);
}
.acc-head .plus { margin-left: auto; width: 26px; height: 26px; flex-shrink: 0; position: relative; }
.acc-head .plus::before, .acc-head .plus::after {
  content: ""; position: absolute; background: var(--text-mute); transition: transform 0.3s var(--ease), background 0.3s;
}
.acc-head .plus::before { left: 0; top: 12px; width: 26px; height: 1.8px; }
.acc-head .plus::after { top: 0; left: 12px; width: 1.8px; height: 26px; }
.acc-item.open .acc-head .plus::after { transform: scaleY(0); }
.acc-item.open .acc-head .plus::before { background: var(--ai-500); }
.acc-body { max-height: 0; overflow: hidden; transition: max-height 0.42s var(--ease); }
.acc-body-inner { padding: 0 0 26px; color: var(--text-body); max-width: 78ch; }

/* ---------- Logo strip ---------- */
.logos { display: flex; flex-wrap: wrap; gap: 14px 46px; align-items: center; justify-content: center; opacity: 0.85; }
.logo-item { font-size: 0.98rem; font-weight: 600; letter-spacing: 0.02em; color: var(--text-mute); white-space: nowrap; }
.dark .logo-item { color: var(--text-on-dark-3); }

/* ---------- Quote ---------- */
.quote { font-family: var(--font-serif); font-size: clamp(1.4rem, 2.4vw, 2rem); line-height: 1.42; color: var(--text-hi); letter-spacing: -0.015em; }
.dark .quote { color: #fff; }
.quote-attr { display: flex; align-items: center; gap: 14px; margin-top: 28px; }
.avatar { width: 46px; height: 46px; border-radius: 50%; background: linear-gradient(135deg, var(--ai-500), #6D4DF6); display: grid; place-items: center; color: #fff; font-weight: 650; font-size: 0.9rem; flex-shrink: 0; }
.quote-attr .who b { display: block; color: var(--text-hi); font-size: 0.93rem; }
.dark .quote-attr .who b { color: #fff; }
.quote-attr .who span { font-size: 0.82rem; color: var(--text-mute); }
.dark .quote-attr .who span { color: var(--text-on-dark-3); }

/* ---------- Bento ---------- */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.bento > * { grid-column: span 2; }
.bento .span3 { grid-column: span 3; }
.bento .span4 { grid-column: span 4; }
.bento .span6 { grid-column: span 6; }
.bento .tall { min-height: 300px; }

/* ---------- Table ---------- */
.tbl { width: 100%; border-collapse: collapse; font-size: 0.93rem; }
.tbl th {
  text-align: left; padding: 14px 16px; font-size: 0.74rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--text-mute); border-bottom: 1px solid var(--line-strong); font-weight: 600;
}
.tbl td { padding: 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl-wrap { border: 1px solid var(--line); border-radius: var(--radius-m); overflow: hidden; background: var(--paper); }
.dark .tbl-wrap { background: rgba(255,255,255,0.03); }
.dark .tbl th { color: var(--text-on-dark-3); border-bottom-color: var(--line-strong); }
.dark .tbl td { border-bottom-color: var(--line); }

/* ---------- Article card ---------- */
.post { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-m); overflow: hidden; display: flex; flex-direction: column; transition: var(--dur) var(--ease); }
.post:hover { transform: translateY(-5px); box-shadow: var(--shadow-m); }
.post .thumb { height: 190px; background: linear-gradient(140deg, var(--ink-700), var(--ink-900)); position: relative; overflow: hidden; }
.post .thumb::after { content: ""; position: absolute; inset: 0; background: radial-gradient(400px 200px at 70% 30%, rgba(46,125,246,0.4), transparent 65%); }
.post .thumb.gold::after { background: radial-gradient(400px 200px at 70% 30%, rgba(224,160,58,0.38), transparent 65%); }
.post .body { padding: 26px; display: flex; flex-direction: column; flex: 1; }
.post h3 { font-size: 1.12rem; margin-bottom: 10px; }
.post h3 a:hover { color: var(--ai-500); }
.post p { font-size: 0.91rem; color: var(--text-mute); flex: 1; }
.post .meta { font-size: 0.79rem; color: var(--text-mute); display: flex; gap: 14px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }

.tag {
  display: inline-block; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 5px 11px; border-radius: 100px; background: rgba(46,125,246,0.12); color: var(--ai-500);
}
.tag.gold { background: rgba(224,160,58,0.15); color: #A9720F; }
.tag.teal { background: rgba(0,194,168,0.13); color: #0A8371; }
.tag.ink { background: var(--paper-3); color: var(--text-mute); }
.dark .tag.gold { color: var(--lr-300); }
.dark .tag.teal { color: var(--accent-2); }

/* ---------- Forms ---------- */
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text-hi); margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 15px; border: 1px solid var(--line-strong); border-radius: 8px;
  font: inherit; font-size: 0.93rem; color: var(--text-hi); background: var(--paper); transition: 0.2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--ai-500); box-shadow: 0 0 0 3px rgba(46,125,246,0.14);
}
.field textarea { min-height: 130px; resize: vertical; }
.field .hint { font-size: 0.78rem; color: var(--text-mute); margin-top: 6px; }
.form-note { font-size: 0.79rem; color: var(--text-mute); margin-top: 18px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--ink-800), var(--ink-900) 62%);
  color: var(--text-on-dark-2); position: relative; overflow: hidden; padding: 96px 0;
}
.cta-band::before { content: ""; position: absolute; inset: 0; background: radial-gradient(620px 400px at 85% 20%, rgba(46,125,246,0.24), transparent 65%); }
.cta-band > * { position: relative; z-index: 2; }
.cta-band h2 { color: #fff; }
.cta-band p, .cta-band .lead { color: var(--text-on-dark-2); }
.cta-band strong { color: #fff; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 48px; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.footer { background: var(--ink-900); color: var(--text-on-dark-3); padding: 76px 0 0; font-size: 0.9rem; }
.footer h5 { color: #fff; font-size: 0.76rem; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 20px; font-weight: 600; }
.footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 44px; padding-bottom: 56px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-bottom { border-top: 1px solid var(--line); padding: 24px 0; display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; font-size: 0.8rem; }
.socials { display: flex; gap: 10px; }
.socials a { width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 8px; display: grid; place-items: center; transition: 0.25s; }
.socials a:hover { border-color: var(--ai-400); color: var(--ai-400); }
.socials svg { width: 15px; height: 15px; fill: currentColor; }
.footer-blurb { max-width: 34ch; color: var(--text-on-dark-3); font-size: 0.88rem; line-height: 1.7; margin-top: 20px; }
.footer .logo-text b { color: #fff; }

/* ---------- Reveal ---------- */
.rv { opacity: 0; transform: translateY(24px); transition: opacity 0.75s var(--ease), transform 0.75s var(--ease); }
.rv.in { opacity: 1; transform: none; }
.rv.d1 { transition-delay: 0.08s; } .rv.d2 { transition-delay: 0.16s; }
.rv.d3 { transition-delay: 0.24s; } .rv.d4 { transition-delay: 0.32s; }
.rv.d5 { transition-delay: 0.40s; } .rv.d6 { transition-delay: 0.48s; }

/* ---------- Filter chips ---------- */
.chips { display: flex; gap: 9px; flex-wrap: wrap; }
.chip {
  padding: 9px 18px; font-size: 0.85rem; font-weight: 600; border-radius: 100px;
  border: 1px solid var(--line-strong); color: var(--text-mute); background: #fff;
  transition: all 0.24s var(--ease);
}
.chip:hover { color: var(--text-hi); border-color: var(--text-hi); }
.chip.active { background: var(--ink-900); border-color: var(--ink-900); color: #fff; }

/* ---------- Misc ---------- */
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }
.sec-head { max-width: 62ch; margin-bottom: 58px; }
.sec-head.center { margin-left: auto; margin-right: auto; }
.pill-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.pill { font-size: 0.8rem; padding: 6px 14px; border-radius: 100px; background: var(--paper-2); color: var(--text-mute); border: 1px solid var(--line); }
.dark .pill { background: rgba(255,255,255,0.05); border-color: var(--line); color: var(--text-on-dark-3); }
.divider-label { display: flex; align-items: center; gap: 18px; font-size: 0.76rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-mute); }
.divider-label::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.checklist { list-style: none; padding: 0; }
.checklist li { position: relative; padding-left: 30px; margin-bottom: 12px; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 13px; height: 7px;
  border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}
.dark .checklist li { color: var(--text-on-dark-2); }
.callout {
  border-left: 3px solid var(--ai-500); background: rgba(46,125,246,0.055);
  padding: 26px 30px; border-radius: 0 var(--radius-s) var(--radius-s) 0;
}
.callout.gold { border-left-color: var(--lr-500); background: rgba(224,160,58,0.07); }
.callout p:last-child { margin-bottom: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .g4 { grid-template-columns: repeat(2, 1fr); }
  .g5 { grid-template-columns: repeat(2, 1fr); }
  .bento > * { grid-column: span 3; }
  .bento .span6 { grid-column: span 6; }
  .bento .span4 { grid-column: span 6; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .split, .split-40, .split-60 { grid-template-columns: 1fr; gap: 40px; }
  .sticky-side { position: static; }
}
@media (max-width: 860px) {
  .nav {
    position: fixed; inset: 76px 0 auto 0; width: 100%; max-width: 100vw;
    flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); padding: 16px var(--gutter) 26px;
    transform: translateY(-130%); transition: transform 0.42s var(--ease);
    box-shadow: var(--shadow-m); max-height: 82vh; overflow-y: auto; overflow-x: hidden;
  }
  .nav .has-drop, .nav .drop, .nav .drop a { max-width: 100%; min-width: 0; }
  .nav.open { transform: translateY(0); }
  .nav .drop { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; border-left: 2px solid var(--line); border-radius: 0; margin: 4px 0 8px; padding: 4px 0 4px 12px; min-width: 0; background: transparent; }
  .nav a { padding: 12px 6px; }
  .nav-toggle { display: flex; }
  .header-cta .btn-ghost { display: none; }
  .header-inner { gap: 14px; }
  .g2, .g3 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .bento > * { grid-column: span 6; }
  .section { padding: 76px 0; }
  .section-lg { padding: 90px 0; }
  .hero { padding: 130px 0 80px; }
  .phero { padding: 118px 0 62px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 560px) {
  .g4, .g5 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .step { grid-template-columns: 48px 1fr; gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; }
  .btn { width: 100%; justify-content: center; }
  .btn-row { flex-direction: column; }
  .hero-badge { display: flex; flex-wrap: wrap; border-radius: 14px; padding: 10px 14px; gap: 8px; }
  .hero-meta { gap: 22px 30px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .rv { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Blog ---------- */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.post {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-m);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.post:hover { transform: translateY(-5px); box-shadow: var(--shadow-m); border-color: var(--line-strong); }
.post .thumb {
  height: 132px; background: linear-gradient(140deg, rgba(46,125,246,.20), rgba(109,77,246,.10));
  display: flex; align-items: center; justify-content: space-between; padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}
.post .thumb.gold { background: linear-gradient(140deg, rgba(224,160,58,.22), rgba(224,160,58,.06)); }
.post .thumb.teal { background: linear-gradient(140deg, rgba(0,194,168,.20), rgba(0,194,168,.05)); }
.post .thumb.ink  { background: linear-gradient(140deg, rgba(11,18,32,.16), rgba(11,18,32,.05)); }
.post .thumb .tag { background: #fff; color: var(--ai-500); }
.post .thumb .tag.gold { color: var(--lr-500); }
.post .thumb .tag.teal { color: #0A8371; }
.post .thumb .tag.ink { color: var(--ink-800); }
.post .body { padding: 26px 28px 28px; flex: 1; display: flex; flex-direction: column; }
.post .body h3 { font-size: 1.14rem; line-height: 1.42; margin-bottom: 10px; }
.post .body h3 a { color: var(--text-hi); text-decoration: none; }
.post .body h3 a:hover { color: var(--ai-500); }
.post .body p { font-size: .93rem; color: var(--text-mute); flex: 1; }
.post .meta {
  display: flex; gap: 14px; align-items: center; margin-top: 20px; padding-top: 16px;
  border-top: 1px solid var(--line); font-size: .78rem; color: var(--text-mute); flex-wrap: wrap;
}
.post .meta .cat { font-weight: 600; color: var(--ai-500); }
.post.featured { grid-column: span 2; flex-direction: row; }
.post.featured .thumb { width: 44%; flex-shrink: 0; height: auto; border-bottom: 0; border-right: 1px solid var(--line); }
.post.featured .body { padding: 40px 44px; }
.post.featured .body h3 { font-size: 1.6rem; }

/* ---------- Article ---------- */
.article-head { max-width: 780px; margin: 0 auto; }
.article-meta {
  display: flex; gap: 18px; align-items: center; flex-wrap: wrap;
  margin: 22px 0 0; font-size: .84rem; color: var(--text-on-dark-3);
}
.article-meta .who b { color: #fff; display: block; font-size: .9rem; }
.article-body { max-width: 760px; margin: 0 auto; font-size: 1.06rem; line-height: 1.78; color: var(--text-body); }
.article-body h2 { margin-top: 52px; }
.article-body h3 { margin-top: 38px; }
.article-body > *:first-child { margin-top: 0; }
.article-body blockquote {
  margin: 32px 0; padding: 8px 0 8px 26px; border-left: 3px solid var(--ai-500);
  font-family: var(--font-serif); font-size: 1.24rem; line-height: 1.55; color: var(--text-hi);
}
.article-body ul, .article-body ol { margin: 20px 0; padding-left: 24px; }
.article-body li { margin-bottom: 10px; }
.article-body li::marker { color: var(--ai-500); }
.article-body table { width: 100%; border-collapse: collapse; margin: 28px 0; font-size: .93rem; }
.article-body th {
  text-align: left; padding: 13px 15px; font-size: .72rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-mute); border-bottom: 1px solid var(--line-strong);
}
.article-body td { padding: 14px 15px; border-bottom: 1px solid var(--line); vertical-align: top; }
.article-toc {
  max-width: 760px; margin: 0 auto; padding: 24px 28px; background: var(--paper-2);
  border: 1px solid var(--line); border-radius: var(--radius-m);
}
.article-toc h4 { font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text-mute); margin-bottom: 14px; }
.article-toc ol { margin: 0; padding-left: 20px; }
.article-toc li { margin-bottom: 8px; font-size: .93rem; }
.article-toc a { color: var(--text-body); text-decoration: none; }
.article-toc a:hover { color: var(--ai-500); }

.faq-item { border-bottom: 1px solid var(--line); padding: 22px 0; }
.faq-item:last-child { border-bottom: 0; }
.faq-item h4 { font-size: 1.04rem; margin-bottom: 8px; }
.faq-item p { font-size: .95rem; color: var(--text-mute); margin: 0; }

@media (max-width: 1080px) {
  .post.featured { grid-column: span 2; }
  .post-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .post-grid { grid-template-columns: 1fr; }
  .post.featured { grid-column: span 1; flex-direction: column; }
  .post.featured .thumb { width: 100%; height: 132px; border-right: 0; border-bottom: 1px solid var(--line); }
  .post.featured .body { padding: 26px 28px; }
  .post.featured .body h3 { font-size: 1.14rem; }
}

/* ---------- Topic keyword cloud (SEO/GEO internal linking) ---------- */
a.chip {
  display: inline-block; text-decoration: none; font-weight: 500;
  padding: 6px 12px; font-size: 0.8rem; border-radius: 100px;
}
a.chip:hover { background: var(--ink-900); border-color: var(--ink-900); color: #fff; }
#topics .sec-head { margin-bottom: 30px; }

/* ---------- Responsive tables (mobile horizontal scroll) ---------- */
.tbl-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.tbl-wrap .tbl { min-width: 560px; }
.article-body table { display: block; width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.article-body table thead, .article-body table tbody { display: table; width: 100%; min-width: 520px; }

/* ---------- Grid/flex children must be allowed to shrink (mobile overflow fix) ---------- */
.grid > *, .g2 > *, .g3 > *, .g4 > *, .g5 > *, .split > *, .bento > *,
.stat, .stats > *, .card, .tbl-wrap, .article-body {
  min-width: 0;
}
.tbl-wrap { max-width: 100%; }

/* ===========================================================================
   WhatsApp 联系入口（全站统一）
   WhatsApp 品牌绿#25D366 / #128C7E，符合其品牌使用规范
   =========================================================================== */
:root {
  --wa-green: #25D366;
  --wa-green-dk: #128C7E;
  --wa-green-lt: #E8FBF0;
}

.btn-wa {
  display: inline-flex; align-items: center; gap: 8px;
  border-color: var(--wa-green-dk) !important;
  color: var(--wa-green-dk) !important;
  font-weight: 600;
}
.btn-wa svg { width: 17px; height: 17px; fill: currentColor; flex: none; }
.btn-wa:hover {
  background: var(--wa-green-lt) !important;
  border-color: var(--wa-green) !important;
  color: var(--wa-green-dk) !important;
}

/* 页脚联系区 */
.footer-contact {
  display: flex; flex-wrap: wrap; gap: 32px; align-items: flex-end;
  justify-content: space-between;
  padding-bottom: 46px; margin-bottom: 46px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}
.footer-contact-lead { max-width: 52ch; }
.footer-contact-lead .eyebrow { color: var(--wa-green); }
.footer-contact-lead h3 { color: #fff; font-size: 1.5rem; margin: 10px 0 12px; line-height: 1.25; }
.footer-contact-lead p { color: var(--text-on-dark-3); margin: 0; font-size: 0.93rem; line-height: 1.7; }
.footer-contact-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.wa-btn {
  display: inline-flex; align-items: center; gap: 13px;
  padding: 14px 22px 14px 17px;
  border-radius: var(--radius-m);
  text-decoration: none; border: 1px solid transparent;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
  min-width: 0;
}
.wa-btn-lg { background: var(--wa-green); color: #05330F !important; }
.wa-btn-lg:hover {
  background: #1fbe59; transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.32);
}
.wa-btn-mail { background: rgba(255, 255, 255, 0.06); border-color: rgba(255, 255, 255, 0.18); color: #fff !important; }
.wa-btn-mail:hover { background: rgba(255, 255, 255, 0.12); transform: translateY(-2px); }

.wa-ico {
  width: 34px; height: 34px; flex: none;
  display: grid; place-items: center;
  border-radius: 50%; background: rgba(0, 0, 0, 0.16);
}
.wa-ico svg { width: 21px; height: 21px; fill: #fff; }
.wa-btn-lg .wa-ico { background: rgba(0, 0, 0, 0.15); }
.wa-ico-mail { background: rgba(255, 255, 255, 0.10); }

.wa-txt { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.wa-txt b { font-size: 0.95rem; font-weight: 700; }
.wa-txt span { font-size: 0.84rem; opacity: 0.82; word-break: break-word; }

.footer-offices { margin-top: 20px; display: grid; gap: 12px; }
.footer-offices p { margin: 0; font-size: 0.84rem; line-height: 1.6; color: var(--text-on-dark-3); }
.footer-offices b { color: var(--text-on-dark-2); font-weight: 600; }

/* 文章末尾联系块 */
.article-contact {
  margin-top: 46px; padding: 32px;
  border: 1px solid var(--line); border-left: 3px solid var(--wa-green);
  border-radius: var(--radius-m); background: var(--paper-2);
}
.article-contact h3 { font-size: 1.18rem; margin: 0 0 8px; }
.article-contact p { color: var(--text-body); margin: 0 0 20px; font-size: 0.94rem; line-height: 1.7; }
.article-contact .btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.article-contact .btn-wa {
  background: var(--wa-green); color: #05330F !important; border-color: var(--wa-green) !important;
}
.article-contact .btn-wa:hover { background: #1fbe59; border-color: #1fbe59 !important; }

/* 响应式 */
@media (max-width: 860px) {
  .footer-contact { flex-direction: column; align-items: stretch; gap: 26px; }
  .footer-contact-actions .wa-btn { flex: 1 1 100%; }
  .btn-wa-num { display: none; }
  .article-contact { padding: 24px 20px; }
}
@media (max-width: 560px) {
  .btn-wa-num { display: none; }
}

/* ===========================================================================
   图形化呈现组件库（20 种）
   纯 CSS/SVG，零依赖。所有图形内文字均为真实 HTML，可被搜索引擎与 AI 读取。
   =========================================================================== */

/* ---- 通用区块容器 ---- */
.viz { padding: 72px 0; }
/* 关键防御：viz 内所有 flex/grid 子项默认可收缩，否则内部大表格会把整页撑宽 */
.viz *, .viz { min-width: 0; }
.viz .wrap { max-width: var(--wrap, 1200px); }
.viz .sec-head { max-width: 74ch; margin-bottom: 40px; }
.viz .sec-head h2 { font-size: clamp(1.5rem, 2.6vw, 2.05rem); margin: 10px 0 14px; letter-spacing: -0.015em; }
.viz .sec-head .lead { font-size: 1.02rem; }

/* ---- 01 流程步骤条 ---- */
.vs-track { display: grid; grid-template-columns: repeat(var(--n), 1fr); gap: 0; }
.vs-step { position: relative; padding: 0 28px 0 0; }
.vs-step::before {
  content: ""; position: absolute; top: 19px; left: 46px; right: -4px;
  height: 2px; background: linear-gradient(90deg, var(--ai-500), var(--line));
}
.vs-step:last-child::before { display: none; }
.viz.lr .vs-step::before { background: linear-gradient(90deg, var(--lr-500), var(--line)); }
.vs-num {
  position: relative; z-index: 1;
  width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--ai-500); color: #fff;
  font-size: .82rem; font-weight: 700; letter-spacing: .02em;
  margin-bottom: 18px;
}
.viz.lr .vs-num { background: var(--lr-500); color: #241703; }
.vs-step h4 { font-size: 1.04rem; margin: 0 0 8px; }
.vs-step p { font-size: .9rem; color: var(--text-mute); margin: 0; line-height: 1.65; }
.vs-tag {
  display: inline-block; margin-top: 12px; padding: 4px 10px;
  font-size: .74rem; font-weight: 600; border-radius: 100px;
  background: var(--paper-3); color: var(--text-body);
}

/* ---- 02 纵向时间线 ---- */
.vt-line { position: relative; padding-left: 8px; }
.vt-line::before {
  content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px;
  width: 2px; background: linear-gradient(180deg, var(--ai-500), var(--accent), var(--line));
}
.viz.lr .vt-line::before { background: linear-gradient(180deg, var(--lr-500), var(--accent), var(--line)); }
.vt-row { position: relative; padding: 0 0 30px 38px; }
.vt-row:last-child { padding-bottom: 0; }
.vt-dot {
  position: absolute; left: 0; top: 6px;
  width: 16px; height: 16px; border-radius: 50%;
  background: #fff; border: 3px solid var(--ai-500);
}
.viz.lr .vt-dot { border-color: var(--lr-500); }
.vt-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.vt-head b { font-size: 1.02rem; }
.vt-body p { font-size: .92rem; color: var(--text-mute); margin: 0; line-height: 1.7; }
.vt-tag {
  font-size: .72rem; font-weight: 600; padding: 3px 9px; border-radius: 100px;
  background: var(--paper-3); color: var(--text-body);
}

/* ---- 03 2×2 决策矩阵 ---- */
.vm-wrap { display: flex; gap: 18px; align-items: stretch; }
.vm-y {
  writing-mode: vertical-rl; transform: rotate(180deg);
  font-size: .74rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-mute); font-weight: 600;
  display: flex; align-items: center; gap: 10px;
}
.vm-arrow { font-size: 1rem; }
.vm-grid {
  flex: 1; display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr;
  gap: 14px; position: relative;
  padding-bottom: 34px;
}
.vm-quad {
  padding: 26px 24px; border-radius: var(--radius-m);
  border: 1px solid var(--line); background: var(--paper-2);
}
.vm-quad h4 { font-size: 1.02rem; margin: 0 0 8px; }
.vm-quad p { font-size: .88rem; color: var(--text-mute); margin: 0; line-height: 1.62; }
.vm-quad.tone-pick { background: linear-gradient(160deg, rgba(0,194,168,.10), #fff); border-color: rgba(0,194,168,.4); }
.vm-quad.tone-try { background: linear-gradient(160deg, rgba(46,125,246,.08), #fff); border-color: rgba(46,125,246,.34); }
.vm-quad.tone-avoid { background: #FBFBFC; border-style: dashed; opacity: .85; }
.vm-quad.tone-later { background: var(--paper-3); }
.vm-x {
  position: absolute; bottom: 0; left: 0; right: 0;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  font-size: .74rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-mute); font-weight: 600;
}

/* ---- 04 分层架构 ---- */
.vl-stack { display: flex; flex-direction: column; gap: 10px; }
.vl-row {
  display: grid; grid-template-columns: minmax(210px, 1fr) 2.4fr;
  gap: 24px; align-items: center;
  padding: 20px 24px; border-radius: var(--radius-m);
  background: var(--paper-2); border: 1px solid var(--line);
  border-left: 3px solid var(--ai-500);
}
.viz.lr .vl-row { border-left-color: var(--lr-500); }
.vl-row:nth-child(1) { background: linear-gradient(90deg, rgba(46,125,246,.10), var(--paper-2)); }
.vl-row:nth-child(2) { background: linear-gradient(90deg, rgba(46,125,246,.07), var(--paper-2)); }
.vl-row:nth-child(3) { background: linear-gradient(90deg, rgba(46,125,246,.05), var(--paper-2)); }
.vl-row:nth-child(4) { background: linear-gradient(90deg, rgba(46,125,246,.03), var(--paper-2)); }
.vl-name b { display: block; font-size: 1rem; margin-bottom: 6px; }
.vl-chip {
  display: inline-block; margin: 2px 4px 0 0; padding: 3px 9px;
  font-size: .7rem; font-weight: 600; border-radius: 100px;
  background: var(--paper); border: 1px solid var(--line); color: var(--text-body);
}
.vl-desc { font-size: .9rem; color: var(--text-body); line-height: 1.65; }

/* ---- 05 金字塔 ---- */
.vp-stack { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.vp-row { display: flex; justify-content: center; }
.vp-in {
  display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; justify-content: center;
  padding: 16px 24px; border-radius: var(--radius-m);
  background: linear-gradient(135deg, rgba(46,125,246,.14), rgba(0,194,168,.10));
  border: 1px solid var(--line); text-align: center;
}
.viz.lr .vp-in { background: linear-gradient(135deg, rgba(224,160,58,.18), rgba(0,194,168,.10)); }
.vp-in b { font-size: 1.02rem; }
.vp-in span:not(.vp-badge) { font-size: .85rem; color: var(--text-mute); }
.vp-badge {
  font-size: .72rem; font-weight: 700; padding: 2px 9px; border-radius: 100px;
  background: var(--ai-500); color: #fff;
}
.viz.lr .vp-badge { background: var(--lr-500); color: #241703; }

/* ---- 06 Before / After ---- */
.vc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.vc-col { padding: 28px 26px; border-radius: var(--radius-m); border: 1px solid var(--line); }
.vc-col.tone-before { background: #FBFBFC; }
.vc-col.tone-after {
  background: linear-gradient(160deg, rgba(0,194,168,.09), #fff);
  border-color: rgba(0,194,168,.4);
}
.vc-tag {
  display: inline-block; margin-bottom: 18px; padding: 5px 13px; border-radius: 100px;
  font-size: .74rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  background: var(--paper-3); color: var(--text-body);
}
.tone-after .vc-tag { background: var(--accent); color: #04231D; }
.vc-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 11px; }
.vc-list li {
  position: relative; padding-left: 26px;
  font-size: .92rem; line-height: 1.62; color: var(--text-body);
}
.vc-list li::before {
  content: "—"; position: absolute; left: 0; color: var(--text-mute); font-weight: 700;
}
.tone-after .vc-list li::before { content: "✓"; color: var(--accent); font-weight: 800; }
.vc-verdict {
  margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--line-strong);
  font-size: .88rem; font-weight: 600; color: var(--text-hi);
}

/* ---- 07 雷达图 ---- */
.vr-wrap { display: flex; flex-direction: column; align-items: center; gap: 20px; }
.vr-wrap svg { max-width: 100%; height: auto; }
.vr-legend { display: flex; flex-wrap: wrap; gap: 18px; justify-content: center; }
.vr-leg { display: inline-flex; align-items: center; gap: 8px; font-size: .85rem; color: var(--text-body); }
.vr-leg i { width: 12px; height: 3px; border-radius: 2px; display: inline-block; }
.vr-cell {
  display: inline-flex; align-items: center; gap: 7px; margin-right: 16px;
  font-size: .82rem; color: var(--text-mute);
}
.vr-cell b {
  width: 22px; height: 22px; border-radius: 5px; display: grid; place-items: center;
  font-size: .72rem; color: #fff;
}
.c-r b { background: #16A34A; } .c-a b { background: #DC2626; }
.c-c b { background: #D97706; } .c-i b { background: #64748B; }

/* ---- 08 横向条形图 ---- */
.vb-stack { display: grid; gap: 14px; }
.vb-row { display: grid; grid-template-columns: minmax(150px, 240px) 1fr auto; gap: 18px; align-items: center; }
.vb-label { font-size: .9rem; font-weight: 500; }
.vb-track { height: 26px; background: var(--paper-3); border-radius: 100px; overflow: hidden; }
.vb-fill {
  height: 100%; border-radius: 100px;
  background: linear-gradient(90deg, var(--ai-500), var(--accent));
  transition: width 1.1s cubic-bezier(.22,.9,.3,1);
}
.viz.lr .vb-fill { background: linear-gradient(90deg, var(--lr-500), var(--accent)); }
.vb-val { font-size: .88rem; font-weight: 700; color: var(--text-hi); min-width: 62px; text-align: right; }

/* ---- 09 散点四象限 ---- */
.vq-wrap { display: flex; justify-content: center; }
.vq-wrap svg { max-width: 100%; height: auto; }

/* ---- 10 RACI ---- */
.viz-roles .vr-legend { justify-content: flex-start; margin-bottom: 18px; }
.viz-roles .tbl th:first-child { min-width: 240px; text-align: left; }
.vc-rc { text-align: center; font-weight: 700; font-size: .8rem; }
.vc-rc.c-r { color: #16A34A; } .vc-rc.c-a { color: #DC2626; }
.vc-rc.c-c { color: #D97706; } .vc-rc.c-i { color: #64748B; }

/* ---- 11 热力网格 ---- */
/* max-width:100% + min-width:0 是关键：确保滚动容器自身不被内容撑开，
   否则整个页面会出现横向溢出 */
.viz-heatmap .wrap { min-width: 0; }
.vh-scroll {
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  max-width: 100%; min-width: 0; overflow-y: hidden;
}
.vh { min-width: 640px; border-collapse: separate; border-spacing: 3px; }
.vh th { font-size: .78rem; font-weight: 600; color: var(--text-mute); padding: 8px; text-align: center; }
.vh tbody th { text-align: left; font-size: .86rem; white-space: nowrap; padding-right: 14px; }
.vh-c { padding: 0; height: 34px; border-radius: 5px; }
.vh-mark { display: block; width: 100%; height: 100%; border-radius: 5px; }
.vh-c.l0 .vh-mark { background: var(--paper-3); }
.vh-c.l1 .vh-mark { background: rgba(46,125,246,.22); }
.vh-c.l2 .vh-mark { background: rgba(46,125,246,.52); }
.vh-c.l3 .vh-mark { background: var(--ai-500); }
.viz.lr .vh-c.l1 .vh-mark { background: rgba(224,160,58,.24); }
.viz.lr .vh-c.l2 .vh-mark { background: rgba(224,160,58,.55); }
.viz.lr .vh-c.l3 .vh-mark { background: var(--lr-500); }
.vh-key { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 16px; }
.vh-lg { display: inline-flex; align-items: center; gap: 7px; font-size: .8rem; color: var(--text-mute); }
.vh-lg i { width: 14px; height: 14px; border-radius: 4px; display: inline-block; }
.vh-lg.l0 i { background: var(--paper-3); }
.vh-lg.l1 i { background: rgba(46,125,246,.22); }
.vh-lg.l2 i { background: rgba(46,125,246,.52); }
.vh-lg.l3 i { background: var(--ai-500); }
.viz.lr .vh-lg.l1 i { background: rgba(224,160,58,.24); }
.viz.lr .vh-lg.l2 i { background: rgba(224,160,58,.55); }
.viz.lr .vh-lg.l3 i { background: var(--lr-500); }

/* ---- 12 漏斗 ---- */
.vn-stack { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.vn-in {
  padding: 16px 22px; border-radius: var(--radius-s);
  background: linear-gradient(135deg, rgba(46,125,246,.13), rgba(0,194,168,.10));
  border: 1px solid var(--line); text-align: center;
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; justify-content: center;
}
.viz.lr .vn-in { background: linear-gradient(135deg, rgba(224,160,58,.18), rgba(0,194,168,.10)); }
.vn-in b { font-size: .98rem; }
.vn-in span { font-size: .84rem; font-weight: 700; color: var(--ai-500); }
.viz.lr .vn-in span { color: #A9700F; }
.vn-in em { flex-basis: 100%; font-style: normal; font-size: .82rem; color: var(--text-mute); }

/* ---- 13 校验清单 ---- */
.vc-grid {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(var(--cols, 2), 1fr); gap: 12px 28px;
}
.vc-grid li {
  position: relative; padding-left: 32px;
  font-size: .93rem; line-height: 1.62; color: var(--text-body);
}
.vc-chk {
  position: absolute; left: 0; top: 2px;
  width: 19px; height: 19px; border-radius: 5px;
  border: 2px solid var(--accent); background: rgba(0,194,168,.10);
}

/* ---- 14 卡片网格 ---- */
.viz-cards .vc-card { display: flex; flex-direction: column; }
.viz-cards .vc-card p { flex: 1; }
.viz-cards .vc-tag { align-self: flex-start; background: var(--paper-3); }

/* ---- 15 数据表 ---- */
.viz-table .tbl { min-width: 620px; }
.vt-cap { caption-side: top; text-align: left; font-size: .84rem; color: var(--text-mute); padding-bottom: 12px; }

/* ---- 16 提示框 ---- */
.viz-callout { padding: 40px 0; }
.vc-out { padding: 26px 30px; border-radius: var(--radius-m); border-left: 3px solid var(--accent); background: var(--paper-2); }
.vc-out.tone-key { border-left-color: var(--accent); background: linear-gradient(90deg, rgba(0,194,168,.07), var(--paper-2)); }
.vc-out.tone-warn { border-left-color: #D97706; background: linear-gradient(90deg, rgba(217,119,6,.07), var(--paper-2)); }
.vc-out.tone-boundary { border-left-color: var(--ai-500); background: linear-gradient(90deg, rgba(46,125,246,.07), var(--paper-2)); }
.vc-out h4 { font-size: 1.04rem; margin: 0 0 8px; }
.vc-out p { font-size: .96rem; color: var(--text-body); margin: 0; line-height: 1.7; }

/* ---- 17 / 18 / 19 复用现有组件，仅补间距 ---- */
.viz-tabs .tabs { margin-top: 0; }
.viz-accordion .acc { margin-top: 0; }

.viz-toc { padding: 28px 0; }
.vt-box { padding: 24px 28px; border-radius: var(--radius-m); background: var(--paper-2); border: 1px solid var(--line); }
.vt-box h4 { font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--text-mute); margin: 0 0 14px; }
.vt-box ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.vt-box a { font-size: .9rem; color: var(--text-body); text-decoration: none; }
.vt-box a:hover { color: var(--ai-500); }

/* ---- 20 指标卡 ---- */
.vs-grid { display: grid; grid-template-columns: repeat(var(--cols, 4), 1fr); gap: 20px; }
.vs-stat { padding: 24px 22px; border-radius: var(--radius-m); background: var(--paper-2); border: 1px solid var(--line); }
.vs-n { font-size: 2.3rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; color: var(--ai-500); }
.viz.lr .vs-n { color: #A9700F; }
.vs-sfx { font-size: 1.3rem; font-weight: 700; }
.vs-l { font-size: .86rem; color: var(--text-mute); margin-top: 8px; line-height: 1.5; }
.vs-d { font-size: .8rem; color: var(--text-mute); margin: 10px 0 0; padding-top: 10px; border-top: 1px dashed var(--line-strong); line-height: 1.55; }

/* ---- 暗色区块内的viz 适配 ---- */
.dark .viz-stats .vs-stat,
.dark .viz-checklist .vc-grid li,
.dark .viz-heatmap .vh th,
.dark .viz-heatmap .vh tbody th { color: var(--text-on-dark-2); }
.dark .vs-stat { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.12); }
.dark .vs-l, .dark .vs-d { color: var(--text-on-dark-3); }
.dark .vs-d { border-top-color: rgba(255,255,255,.14); }
.dark .vc-out { background: rgba(255,255,255,.05); }
.dark .vc-out p { color: var(--text-on-dark-2); }
.dark .vc-grid li { color: var(--text-on-dark-2); }
.dark .vt-box { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.12); }
.dark .vt-box a { color: var(--text-on-dark-2); }
.dark .vb-track { background: rgba(255,255,255,.10); }
.dark .vb-label, .dark .vb-val { color: var(--text-on-dark); }
.dark .vm-quad, .dark .vl-row, .dark .vp-in, .dark .vn-in { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.12); }
.dark .vl-row { background: rgba(255,255,255,.05) !important; }
.dark .vm-quad p, .dark .vl-desc, .dark .vn-in em { color: var(--text-on-dark-3); }
.dark .vm-grid line, .dark .viz svg line { stroke: rgba(255,255,255,.14); }
.dark .viz svg text { fill: var(--text-on-dark-3); }
.dark .vh th, .dark .vh tbody th { color: var(--text-on-dark-3); }

/* ---- 响应式 ---- */
@media (max-width: 980px) {
  .viz { padding: 56px 0; }
  .vs-track { grid-template-columns: repeat(2, 1fr); gap: 30px 0; }
  .vs-step:nth-child(2)::before { display: none; }
  .vc-grid { grid-template-columns: 1fr; }
  .vs-grid { grid-template-columns: repeat(2, 1fr); }
  .vl-row { grid-template-columns: 1fr; gap: 10px; }
  .vc-grid { --cols: 1 !important; }
}
@media (max-width: 640px) {
  .viz { padding: 44px 0; }
  .vs-track { grid-template-columns: 1fr; gap: 26px; }
  .vs-step { padding-right: 0; }
  .vs-step::before { display: none !important; }
  .vm-grid { grid-template-columns: 1fr; grid-template-rows: repeat(4, auto); }
  .vm-y { writing-mode: horizontal-tb; transform: none; margin-bottom: 8px; }
  .vb-row { grid-template-columns: 1fr; gap: 6px; }
  .vb-val { text-align: left; min-width: 0; }
  .vs-grid { grid-template-columns: 1fr; }
  .vr-wrap svg { width: 100%; }
  .vp-row { width: 100% !important; }
}

/* ==========================================================================
   汉堡菜单内的移动端 CTA（桌面隐藏）
   ========================================================================== */
.nav-cta { display: none; }
.nav-mail {
  display: block; text-align: center; font-size: .9rem; font-weight: 600;
  color: var(--text-body); padding: 4px 0 2px;
}
/* ==========================================================================
   行业详情块（vizblocks._industry_details）
   ========================================================================== */
.viz-industry { padding: 44px 0; border-bottom: 1px solid var(--line); }
.viz-industry .vi-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 24px; flex-wrap: wrap; margin-bottom: 26px;
}
.viz-industry .vi-head h2 { margin: 6px 0 0; font-size: 1.6rem; }
.vi-regions { display: flex; flex-wrap: wrap; gap: 6px; }
.vi-grid { display: grid; grid-template-columns: 1fr 1fr 1.4fr; gap: 30px; align-items: start; }
.vi-col h4 {
  font-size: .74rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: var(--text-mute); margin: 0 0 12px;
}
.vi-col p { margin: 0; color: var(--text-body); font-size: .95rem; line-height: 1.7; }
.vi-roles { display: flex; flex-wrap: wrap; gap: 6px; }
.vc-list { list-style: none; padding: 0; margin: 0; }
.vc-list li {
  position: relative; padding-left: 18px; margin-bottom: 9px;
  font-size: .92rem; line-height: 1.62; color: var(--text-body);
}
.vc-list li::before {
  content: ""; position: absolute; left: 0; top: .58em;
  width: 6px; height: 6px; border-radius: 50%; background: var(--ai-500);
}
.vc-list-warn li::before { background: var(--lr-500); }
.vc-list-metric li::before {
  content: "→"; width: auto; height: auto; background: none; top: 0;
  color: var(--accent); font-weight: 700;
}
.vi-learn {
  margin-top: 28px; padding: 20px 24px;
  background: var(--lr-50, #FDF6E9);
  border-left: 3px solid var(--lr-500); border-radius: 0 10px 10px 0;
}
.vi-learn h4 { margin: 0 0 8px; font-size: .92rem; }
.vi-learn p { margin: 0; font-size: .93rem; line-height: 1.68; color: var(--text-body); }
.vq-item { display: flex; gap: 10px; margin-bottom: 8px; }
.vq-item b { color: var(--accent); }

@media (max-width: 980px) {
  .vi-grid { grid-template-columns: 1fr 1fr; }
  .vi-col.vi-wide { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .vi-grid { grid-template-columns: 1fr; }
  .viz-industry .vi-head h2 { font-size: 1.32rem; }
}

/* ===========================================================================
   页头响应式加固（20 语言切换器加入后必需）
   窄屏策略：页头只保留 logo + 语言按钮 + 汉堡键；
   Request a proposal / WhatsApp / 邮箱 收入汉堡菜单，绝不撑破视口。
   =========================================================================== */
.header-inner > * { min-width: 0; }
.logo-text b, .logo-text span { white-space: nowrap; }

@media (max-width: 1080px) {
  .header-cta .btn { padding: 11px 14px; font-size: .8rem; }
  .btn-wa-num { display: none; }
}

@media (max-width: 860px) {
  .nav-cta {
    display: flex; flex-direction: column; align-items: stretch; gap: 10px;
    margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line);
  }
  .nav-cta .btn { justify-content: center; width: 100%; }
  .hdr-req { display: none; }
  .header-cta { gap: 8px; flex: 0 0 auto; }
}

@media (max-width: 480px) {
  .logo-text { display: none; }
  .hdr-wa { display: none; }
}

/* ===========================================================================
   图形带（.vizgroup）
   把一组可视化包成一条独立的浅色带，插在文字段之间形成
   「文字 → 图形 → 文字」的阅读节奏，而不是把图全堆在页面末尾。
   =========================================================================== */
.vizgroup {
  position: relative;
  background: var(--paper-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 8px 0;
}
/* 图形带内的多个 viz 段之间不再各自留大间距，首尾收紧 */
.vizgroup .viz { padding: 56px 0; }
.vizgroup .viz + .viz { padding-top: 4px; }
/* 图形带的品牌侧边标记：一条蓝金渐变竖线，暗示「这一段是论据」 */
.vizgroup::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--ai-500), var(--accent), var(--lr-500));
  opacity: .85;
}
/* 图形带紧跟深色段时，深→浅的落差需要更明确的分隔 */
.section.dark + .vizgroup,
.vizgroup + .section.dark { border-color: rgba(11, 18, 32, .18); }

/* 图形带内的表格/卡片略微收紧，避免一屏放不下 */
.vizgroup .tbl { font-size: .93rem; }
.vizgroup .tbl th, .vizgroup .tbl td { padding: 11px 14px; }

@media (max-width: 900px) {
  .vizgroup .viz { padding: 44px 0; }
  .vizgroup .viz + .viz { padding-top: 0; }
}