/* ============================================
 * LYR Website · Main Stylesheet
 * 视觉对标:Salesforce Agentforce(差异化版本)
 * 主基调:暖金 + 工业黑底 + 米白 + 直角硬边 + 工业网格
 * ============================================ */

:root {
  /* 品牌色 */
  --gold: #C9A063;
  --gold-bright: #E5C170;
  --gold-dark: #8B6F3D;
  --gold-faint: rgba(201, 160, 99, 0.15);

  /* 工业黑系 */
  --black: #0E0E0E;
  --black-soft: #1A1A1A;
  --black-card: #161616;
  --gray-900: #2A2A2A;
  --gray-700: #4A4A4A;
  --gray-500: #888888;
  --gray-400: #A8A8A8;
  --gray-300: #BDBDBD;
  --gray-200: #D5D5D5;

  /* 米白系 */
  --beige: #F5F2EA;
  --beige-warm: #EBE5D5;
  --white: #FFFFFF;

  /* 字体 */
  --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Source Han Sans CN', sans-serif;
  --font-serif: 'Playfair Display', 'Source Han Serif CN', serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;

  /* 间距 · 节奏化 */
  --container: 1280px;
  --section-y: 96px;
  --section-y-tight: 72px;
  --section-y-loose: 128px;

  /* 边框 */
  --border-thin: 1px solid var(--gold-dark);
  --border-grid: 1px solid rgba(201, 160, 99, 0.18);
}

/* ============================================
 * Selection
 * ============================================ */
::selection { background: var(--gold); color: var(--black); }

/* ============================================
 * Reset & Base
 * ============================================ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--black);
  color: var(--gray-200);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img, svg {
  max-width: 100%;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
}

/* ============================================
 * Container & Section
 * ============================================ */

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: var(--section-y) 0;
  position: relative;
}

.section--light {
  background: var(--beige);
  color: var(--black);
}

.section--gold {
  background: var(--gold);
  color: var(--black);
}

/* ============================================
 * Industrial Grid Background (差异化关键)
 * ============================================ */

.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border-grid)),
    linear-gradient(90deg, var(--border-grid));
  background-size: 80px 80px;
  pointer-events: none;
  opacity: 0.5;
  z-index: 0;
}

.grid-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(201, 160, 99, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 160, 99, 0.08) 1px, transparent 1px);
  background-size: 80px 80px;
}

/* ============================================
 * Header / Navigation
 * ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(14, 14, 14, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201, 160, 99, 0.2);
}

.header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: opacity 0.2s;
}
.logo:hover { opacity: 0.85; }

.logo__mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--gold-bright) 0%, var(--gold) 50%, var(--gold-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  color: var(--black);
  font-weight: 700;
  font-size: 18px;
  position: relative;
  box-shadow: 0 2px 8px rgba(201,160,99,0.2);
}
.logo__mark::after {
  content: '';
  position: absolute;
  inset: 2px;
  border: 1px solid rgba(0,0,0,0.15);
  pointer-events: none;
}

.logo__zh {
  color: var(--white);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.01em;
}

.logo__en {
  color: var(--gold);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 17px;
  letter-spacing: 0.01em;
  position: relative;
  padding-left: 12px;
}
.logo__en::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 1px;
  background: var(--gold-dark);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-300);
  transition: color 0.2s;
  letter-spacing: 0.02em;
}

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

.nav__link--active {
  color: var(--gold);
}

.nav__cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav__partners {
  font-size: 12px;
  color: var(--gray-500);
  letter-spacing: 0.05em;
  border: 1px solid var(--gray-700);
  padding: 6px 12px;
  transition: all 0.2s;
}

.nav__partners:hover {
  border-color: var(--gold-dark);
  color: var(--gold);
}

/* ============================================
 * Buttons
 * ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: 2px;
  transition: all 0.2s;
  border: 1px solid transparent;
  font-family: inherit;
}

.btn--primary {
  background: var(--gold);
  color: var(--black);
  box-shadow: 0 0 0 0 var(--gold);
  position: relative;
  overflow: hidden;
}
.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.btn--primary > * { position: relative; z-index: 1; }
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,160,99,0.3);
}
.btn--primary:hover::before { opacity: 1; }

.btn--ghost {
  background: transparent;
  color: var(--gold);
  border-color: var(--gold-dark);
}

.btn--ghost:hover {
  background: var(--gold-faint);
  border-color: var(--gold);
}

.btn--dark {
  background: var(--black);
  color: var(--white);
}

.btn--dark:hover {
  background: var(--black-soft);
}

.btn--lg {
  padding: 18px 36px;
  font-size: 16px;
}

.btn__arrow {
  transition: transform 0.2s;
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

/* ============================================
 * Hero Section · 重做版
 * ============================================ */

.hero {
  position: relative;
  padding: 160px 0 80px;
  overflow: hidden;
  isolation: isolate;
}

/* 右上角装饰编号 */
.hero::before {
  content: 'EST · 2014';
  position: absolute;
  top: 100px;
  right: 32px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--gold-dark);
  z-index: 3;
}
.hero::after {
  content: '';
  position: absolute;
  top: 130px;
  right: 32px;
  width: 80px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
  z-index: 3;
}

.hero__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 2;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.3em;
  margin-bottom: 40px;
  padding: 6px 0 6px 56px;
  position: relative;
  text-transform: uppercase;
}

.hero__eyebrow::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 40px;
  height: 1px;
  background: var(--gold);
}

.hero__title {
  font-size: clamp(38px, 5.5vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--white);
  letter-spacing: -0.025em;
  max-width: 1100px;
  margin-bottom: 40px;
}

.hero__title-en {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.4vw, 32px);
  font-weight: 400;
  font-style: italic;
  color: var(--gold);
  margin-bottom: 24px;
  letter-spacing: 0.005em;
  opacity: 0.85;
}

.hero__title-highlight {
  position: relative;
  color: var(--gold);
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 700;
  display: inline-block;
}
.hero__title-highlight::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 8px;
  width: 100%;
  height: 8px;
  background: var(--gold);
  opacity: 0.15;
  z-index: -1;
}

.hero__subtitle {
  font-size: 17px;
  color: var(--gray-300);
  max-width: 760px;
  line-height: 1.75;
  margin-bottom: 48px;
  font-weight: 400;
}
.hero__subtitle strong {
  color: var(--gold);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.hero__cta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 96px;
}

/* 不对称数字带 — 1主4辅 */
.hero__stats {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 0;
  padding-top: 56px;
  border-top: 1px solid var(--gold-dark);
  position: relative;
}
.hero__stats::before {
  content: '02';
  position: absolute;
  top: -10px;
  left: 0;
  background: var(--black);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
  padding-right: 16px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 0 24px 0 0;
  border-right: 1px solid rgba(201,160,99,0.15);
  position: relative;
  transition: all 0.3s;
}
.stat:last-child { border-right: none; }
.stat:first-child { padding-right: 32px; }

.stat:hover {
  transform: translateY(-2px);
}

.stat__value {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  letter-spacing: -0.02em;
}
.stat:first-child .stat__value {
  font-size: 56px;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-dark));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat__label {
  font-size: 12px;
  color: var(--gray-500);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.stat:first-child .stat__label {
  font-size: 13px;
  color: var(--gray-400);
}

/* ============================================
 * Customer Logo Strip
 * ============================================ */

.logo-strip {
  background: var(--black-soft);
  padding: 48px 0;
  border-top: var(--border-thin);
  border-bottom: var(--border-thin);
}

.logo-strip__title {
  text-align: center;
  font-size: 13px;
  letter-spacing: 0.15em;
  color: var(--gray-500);
  margin-bottom: 32px;
  text-transform: uppercase;
}

/* 不对称认证墙 — 第一行4主+第二行5辅 */
.logo-strip__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  align-items: stretch;
  margin-bottom: 16px;
}
.logo-strip__grid--secondary {
  grid-template-columns: repeat(5, 1fr);
}

.logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border: 1px solid var(--gray-900);
  font-size: 13px;
  color: var(--gray-400);
  font-weight: 500;
  line-height: 1.4;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  padding: 24px 16px;
  background: var(--black);
  overflow: hidden;
}
.logo-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-dark), transparent);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}
.logo-item:hover {
  border-color: var(--gold-dark);
  color: var(--gold);
  transform: translateY(-2px);
  background: var(--black-soft);
}
.logo-item:hover::before { transform: scaleX(1); }

/* 主认证(P0)— 大卡 */
.logo-item--badge {
  border-color: var(--gold-dark);
  background: linear-gradient(180deg, var(--black-card) 0%, var(--black) 100%);
  color: var(--gold);
  min-height: 96px;
  font-weight: 600;
  font-size: 14px;
}
.logo-item--badge::after {
  content: '★';
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 11px;
  color: var(--gold);
}

/* Corner brackets 装饰 */
.logo-item--badge .corner {
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--gold);
  pointer-events: none;
}
.logo-item--badge .corner-tl { top: 4px; left: 4px; border-top: 1px solid; border-left: 1px solid; }
.logo-item--badge .corner-br { bottom: 4px; right: 4px; border-bottom: 1px solid; border-right: 1px solid; }

/* ============================================
 * Section Header
 * ============================================ */

.section-header {
  margin-bottom: 64px;
  max-width: 900px;
}

.section-header__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.section-header__eyebrow::before {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--gold);
  transition: width 0.6s ease;
}
.section-header.fade-in .section-header__eyebrow::before {
  width: 64px;
}

.section-header__title {
  font-size: clamp(30px, 4.2vw, 52px);
  font-weight: 700;
  line-height: 1.12;
  color: var(--white);
  letter-spacing: -0.022em;
  margin-bottom: 28px;
}

.section--light .section-header__title {
  color: var(--black);
}

.section-header__subtitle {
  font-size: 17px;
  color: var(--gray-400);
  line-height: 1.6;
  max-width: 720px;
}

.section--light .section-header__subtitle {
  color: var(--gray-700);
}

/* ============================================
 * Product Family Grid (4款产品族)
 * ============================================ */

.product-family {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: var(--border-thin);
}

.product-card {
  padding: 56px 32px 40px;
  border-right: var(--border-thin);
  position: relative;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  background: var(--black-card);
  display: flex;
  flex-direction: column;
  min-height: 380px;
  overflow: hidden;
}

.product-card:last-child { border-right: none; }

/* 序号装饰 */
.product-card::before {
  content: counter(product-counter, decimal-leading-zero);
  counter-increment: product-counter;
  position: absolute;
  top: 16px;
  left: 32px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold-dark);
}

.product-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.product-card:hover {
  background: var(--black-soft);
}
.product-card:hover::after { transform: scaleX(1); }
.product-card:hover .product-card__arrow {
  transform: translateX(4px);
  opacity: 1;
}
.product-card:hover .product-card__name-en {
  color: var(--gold-bright);
}

/* 旗舰建木卡(第一张)— 突出 */
.product-card--flagship {
  background: linear-gradient(180deg, var(--black-soft) 0%, var(--black-card) 100%);
  position: relative;
}
.product-card--flagship::before {
  content: '★ FLAGSHIP / 01';
  color: var(--gold);
  letter-spacing: 0.15em;
}
.product-card--flagship .product-card__name-en {
  color: var(--gold);
}

.product-family {
  counter-reset: product-counter;
}

.product-card__role {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 14px;
  color: var(--gold);
  margin-bottom: 8px;
  letter-spacing: 0.1em;
}

.product-card__name-en {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.product-card__name-zh {
  font-size: 22px;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 24px;
}

.product-card__divider {
  width: 32px;
  height: 1px;
  background: var(--gold-dark);
  margin-bottom: 24px;
}

.product-card__desc {
  font-size: 15px;
  color: var(--gray-400);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 24px;
}

.product-card__compare {
  font-size: 12px;
  color: var(--gray-500);
  font-style: italic;
  margin-bottom: 24px;
}

.product-card__link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--gold);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.product-card__arrow {
  transition: all 0.3s;
  opacity: 0.6;
}

/* ============================================
 * Silico Colleagues (硅基同事场景包)
 * ============================================ */

.scenarios {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--gold-dark);
  border: 1px solid var(--gold-dark);
}

.scenario {
  background: var(--beige);
  padding: 48px 28px 32px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.scenario::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(201,160,99,0.06) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.scenario::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%;
  height: 3px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.scenario > * { position: relative; z-index: 1; }

.scenario:hover {
  background: var(--white);
  transform: translateY(-2px);
}
.scenario:hover::before { opacity: 1; }
.scenario:hover::after { transform: scaleX(1); }
.scenario:hover .scenario__icon {
  background: var(--gold);
  color: var(--black);
}

.scenario__icon {
  width: 56px;
  height: 56px;
  background: var(--black);
  color: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 28px;
  position: relative;
  transition: all 0.4s ease;
}
.scenario__icon::before {
  content: '';
  position: absolute;
  inset: -4px;
  border: 1px solid var(--gold-dark);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.scenario:hover .scenario__icon::before { opacity: 1; }

.scenario__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 8px;
}

.scenario__subtitle {
  font-size: 13px;
  color: var(--gray-700);
  margin-bottom: 24px;
  font-family: var(--font-serif);
  font-style: italic;
}

.scenario__metric {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--gold-dark);
}

.scenario__metric-label {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gray-700);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.scenario__metric-value {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--black);
}

/* ============================================
 * Architecture Diagram (建木架构图)
 * ============================================ */

.architecture {
  background: var(--black-card);
  border: var(--border-thin);
  padding: 64px;
  position: relative;
  counter-reset: arch-counter;
}
/* Corner brackets */
.architecture::before, .architecture::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 24px;
  border-color: var(--gold);
  pointer-events: none;
}
.architecture::before {
  top: -1px; left: -1px;
  border-top: 2px solid;
  border-left: 2px solid;
}
.architecture::after {
  bottom: -1px; right: -1px;
  border-bottom: 2px solid;
  border-right: 2px solid;
}

.arch-layer {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 56px;
  padding: 36px 0;
  border-bottom: 1px solid var(--gray-900);
  align-items: center;
  position: relative;
  counter-increment: arch-counter;
}

.arch-layer::before {
  content: counter(arch-counter, decimal-leading-zero);
  position: absolute;
  left: -48px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.2em;
  opacity: 0.6;
}

/* 流向箭头 */
.arch-layer:not(:last-child)::after {
  content: '↓';
  position: absolute;
  bottom: -16px;
  left: 96px;
  background: var(--black-card);
  color: var(--gold);
  font-size: 16px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gold-dark);
  z-index: 2;
}

.arch-layer:last-child {
  border-bottom: none;
}

.arch-layer__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
}

.arch-layer__label-zh {
  display: block;
  font-family: var(--font-sans);
  font-size: 18px;
  color: var(--white);
  margin-top: 4px;
  letter-spacing: 0;
  text-transform: none;
  font-weight: 600;
}

.arch-layer__items {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.arch-item {
  border: 1px solid var(--gray-700);
  padding: 16px 20px;
  font-size: 14px;
  color: var(--gray-300);
  background: var(--black);
}

.arch-item--gold {
  border-color: var(--gold);
  color: var(--gold);
}

.arch-item__name {
  font-weight: 600;
  color: var(--white);
  display: block;
  margin-bottom: 2px;
}

.arch-item--gold .arch-item__name {
  color: var(--gold);
}

/* ============================================
 * Trust / Compliance Section
 * ============================================ */

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.trust-card {
  background: var(--black-card);
  border: 1px solid var(--gray-900);
  padding: 40px 28px 32px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.trust-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 32px;
  height: 1px;
  background: var(--gold);
  transition: width 0.4s ease;
}
.trust-card:hover {
  border-color: var(--gold-dark);
  transform: translateY(-3px);
  background: var(--black-soft);
}
.trust-card:hover::before {
  width: 100%;
}

.trust-card__count {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.trust-card__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 8px;
}

.trust-card__desc {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ============================================
 * Customer Cases
 * ============================================ */

.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.case-card {
  background: var(--black-card);
  border: 1px solid var(--gray-900);
  padding: 44px 40px 36px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.case-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.case-card::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 1px;
  height: 0;
  background: var(--gold);
  transition: height 0.5s 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.case-card:hover {
  border-color: var(--gray-900);
  transform: translateY(-2px);
}
.case-card:hover::before { width: 100%; }
.case-card:hover::after { height: 100%; }

.case-card__badge {
  display: inline-block;
  font-size: 11px;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  color: var(--gold);
  background: var(--gold-faint);
  padding: 4px 10px;
  margin-bottom: 24px;
  border: 1px solid var(--gold-dark);
  text-transform: uppercase;
}

.case-card__client {
  font-size: 24px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.case-card__industry {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 14px;
  color: var(--gold);
  margin-bottom: 24px;
}

.case-card__excerpt {
  font-size: 15px;
  color: var(--gray-400);
  line-height: 1.7;
  margin-bottom: 32px;
}

.case-card__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-900);
}

.case-metric__value {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 4px;
}

.case-metric__label {
  font-size: 11px;
  color: var(--gray-500);
  letter-spacing: 0.05em;
}

/* ============================================
 * Final CTA
 * ============================================ */

.final-cta {
  background: linear-gradient(135deg, var(--gold-bright) 0%, var(--gold) 50%, var(--gold-dark) 100%);
  color: var(--black);
  padding: 112px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.final-cta::before, .final-cta::after {
  content: '';
  position: absolute;
  width: 32px;
  height: 32px;
  border-color: var(--black);
}
.final-cta::before {
  top: 24px; left: 24px;
  border-top: 2px solid;
  border-left: 2px solid;
}
.final-cta::after {
  bottom: 24px; right: 24px;
  border-bottom: 2px solid;
  border-right: 2px solid;
}

.final-cta__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.final-cta__title {
  font-family: var(--font-serif);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 32px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.final-cta__subtitle {
  font-size: 18px;
  margin-bottom: 48px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.final-cta__buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============================================
 * Footer
 * ============================================ */

.footer {
  background: var(--black-soft);
  padding: 80px 0 32px;
  border-top: 1px solid var(--gray-900);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 64px;
}

.footer__brand {
  max-width: 360px;
}

.footer__tagline {
  font-size: 13px;
  color: var(--gray-500);
  margin-top: 16px;
  line-height: 1.7;
}

.footer__col-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.footer__list {
  list-style: none;
}

.footer__list li {
  margin-bottom: 10px;
}

.footer__link {
  font-size: 13px;
  color: var(--gray-500);
  transition: color 0.2s;
}

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

.footer__bottom {
  padding-top: 32px;
  border-top: 1px solid var(--gray-900);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--gray-500);
}

.footer__bottom-icp {
  font-family: var(--font-mono);
}

/* ============================================
 * Page-specific sections
 * ============================================ */

/* Page Hero (内页) */
.page-hero {
  padding: 160px 0 80px;
  background: var(--black);
  border-bottom: var(--border-thin);
  position: relative;
}

.page-hero__breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-bottom: 24px;
  text-transform: uppercase;
}

.page-hero__title {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.page-hero__title-en {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--gold);
  display: block;
  font-size: 0.55em;
  margin-bottom: 8px;
  font-weight: 400;
}

.page-hero__subtitle {
  font-size: 20px;
  color: var(--gray-300);
  max-width: 800px;
  line-height: 1.6;
}

/* ============================================
 * Compare Table (对比表 — TaskBot vs 主流RPA)
 * ============================================ */

.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--black-card);
  border: var(--border-thin);
}

.compare-table th,
.compare-table td {
  padding: 20px 24px;
  text-align: left;
  border-bottom: 1px solid var(--gray-900);
  font-size: 14px;
}

.compare-table th {
  font-weight: 600;
  color: var(--gold);
  background: var(--black-soft);
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.compare-table td:first-child {
  color: var(--gray-400);
  font-weight: 500;
}

.compare-table td:last-child {
  color: var(--white);
  font-weight: 500;
}

/* ============================================
 * Responsive
 * ============================================ */

@media (max-width: 1024px) {
  .nav { gap: 16px; }
  .nav__link { font-size: 13px; }
  .product-family { grid-template-columns: repeat(2, 1fr); }
  .product-card:nth-child(2) { border-right: none; }
  .product-card:nth-child(1), .product-card:nth-child(2) {
    border-bottom: var(--border-thin);
  }
  .scenarios { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
  .hero__stats {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 24px 16px;
  }
  .stat:nth-child(n+4) { border-top: 1px solid rgba(201,160,99,0.15); padding-top: 16px; }
  .logo-strip__grid { grid-template-columns: repeat(2, 1fr); }
  .logo-strip__grid--secondary { grid-template-columns: repeat(3, 1fr); }
  .arch-layer { grid-template-columns: 160px 1fr; gap: 32px; padding: 24px 0; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .hero { padding: 120px 0 64px; }
  .hero::before, .hero::after { display: none; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 24px; padding-top: 32px; }
  .stat { padding: 0; border-right: none !important; border-bottom: 1px solid rgba(201,160,99,0.12); padding-bottom: 16px; }
  .stat:first-child .stat__value { font-size: 44px; }
  .architecture { padding: 32px 24px; }
  .arch-layer { grid-template-columns: 1fr; gap: 16px; padding: 20px 0; }
  .arch-layer::before { position: static; margin-bottom: 8px; }
  .arch-layer:not(:last-child)::after { left: 50%; transform: translateX(-50%); }
  .nav { display: none; }
  .nav--open {
    display: flex !important;
    position: fixed;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    background: var(--black-soft);
    padding: 24px;
    gap: 0;
    border-bottom: 1px solid var(--gold-dark);
    z-index: 99;
  }
  .nav--open .nav__link {
    display: block;
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-900);
    font-size: 16px;
  }
  .nav-toggle {
    display: flex !important;
  }
  .nav__cta { gap: 8px; }
  .nav__partners { display: none; }
  .product-family { grid-template-columns: 1fr; }
  .scenarios { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .arch-layer { grid-template-columns: 1fr; gap: 16px; }
  .case-card__metrics { grid-template-columns: 1fr; }
  .logo-strip__grid { grid-template-columns: repeat(3, 1fr); }
  .compare-table { font-size: 12px; }
  .compare-table th, .compare-table td { padding: 12px 10px; }
}

/* Mobile menu toggle button */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--gold);
  transition: all 0.3s;
}

/* Sticky bottom CTA (移动端) */
.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--gold);
  color: var(--black);
  padding: 12px 16px;
  z-index: 90;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--gold-dark);
  box-shadow: 0 -4px 16px rgba(0,0,0,0.3);
}
.sticky-cta__text {
  font-size: 13px;
  font-weight: 600;
}
.sticky-cta__btn {
  background: var(--black);
  color: var(--gold);
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 2px;
}
@media (max-width: 640px) {
  .sticky-cta { display: flex; }
  body { padding-bottom: 60px; }
}

/* ============================================
 * Animations (克制 — 仅fade-in)
 * ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.6s ease-out forwards;
}

.fade-in--delay-1 { animation-delay: 0.1s; opacity: 0; }
.fade-in--delay-2 { animation-delay: 0.2s; opacity: 0; }
.fade-in--delay-3 { animation-delay: 0.3s; opacity: 0; }

/* ============================================
 * Testimonials · 证言滚动展示
 * ============================================ */

.testimonials-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 16px 4px 32px;
  -ms-overflow-style: none;
  scrollbar-width: thin;
  scrollbar-color: var(--gold-dark) transparent;
}
.testimonials-track::-webkit-scrollbar { height: 6px; }
.testimonials-track::-webkit-scrollbar-track { background: transparent; }
.testimonials-track::-webkit-scrollbar-thumb { background: var(--gold-dark); border-radius: 3px; }

.testimonial {
  flex: 0 0 480px;
  scroll-snap-align: start;
  background: var(--black-card);
  border: 1px solid var(--gray-900);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s;
}
.testimonial:hover { border-color: var(--gold-dark); }
.testimonial::before {
  content: '"';
  position: absolute;
  top: 16px;
  left: 24px;
  font-family: var(--font-serif);
  font-size: 80px;
  color: var(--gold);
  line-height: 1;
  font-style: italic;
  opacity: 0.4;
}
.testimonial__quote {
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.7;
  color: var(--white);
  margin: 32px 0;
  font-style: italic;
  flex: 1;
}
.testimonial__author {
  padding-top: 24px;
  border-top: 1px solid var(--gray-900);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.testimonial__role {
  font-size: 13px;
  color: var(--gold);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}
.testimonial__org {
  font-size: 12px;
  color: var(--gray-500);
}

@media (max-width: 640px) {
  .testimonial { flex-basis: 88vw; padding: 32px 24px; }
  .testimonial__quote { font-size: 16px; }
}

/* ============================================
 * Comparison Table · 产品对比表
 * ============================================ */

.compare-mega {
  width: 100%;
  border-collapse: collapse;
  background: var(--black-card);
  border: var(--border-thin);
  font-size: 13px;
}
.compare-mega th {
  background: var(--black-soft);
  color: var(--gold);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 12px;
  padding: 20px 16px;
  border-bottom: 2px solid var(--gold-dark);
  text-align: left;
  vertical-align: top;
}
.compare-mega th.highlight {
  background: var(--gold-faint);
  color: var(--gold);
}
.compare-mega td {
  padding: 16px;
  border-bottom: 1px solid var(--gray-900);
  vertical-align: top;
  color: var(--gray-300);
}
.compare-mega td:first-child {
  font-weight: 600;
  color: var(--white);
  background: var(--black-soft);
}
.compare-mega td.highlight {
  background: rgba(201,160,99,0.06);
  color: var(--white);
  font-weight: 500;
}
.compare-mega td.check { color: var(--gold); font-size: 16px; font-weight: 700; }
.compare-mega td.cross { color: var(--gray-700); }

/* ============================================
 * FAQ Accordion
 * ============================================ */

.faq-list {
  max-width: 900px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--gray-900);
  padding: 24px 0;
}
.faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  padding: 0;
  font-family: inherit;
}
.faq-q:hover { color: var(--gold); }
.faq-q__icon {
  color: var(--gold);
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  flex-shrink: 0;
  transition: transform 0.3s;
}
.faq-item[open] .faq-q__icon { transform: rotate(45deg); }
.faq-a {
  margin-top: 16px;
  color: var(--gray-400);
  line-height: 1.8;
  font-size: 15px;
  padding-right: 40px;
}

/* ============================================
 * Sitemap visualization
 * ============================================ */
.sitemap-tree {
  font-family: var(--font-mono);
  background: var(--black-card);
  border: var(--border-thin);
  padding: 48px;
  font-size: 14px;
  line-height: 2;
  color: var(--gray-300);
}
.sitemap-tree a {
  color: var(--gold);
  border-bottom: 1px dashed transparent;
  transition: border-color 0.2s;
}
.sitemap-tree a:hover { border-bottom-color: var(--gold); }
.sitemap-tree .tree-l1 { color: var(--white); font-weight: 700; }
.sitemap-tree .tree-pipe { color: var(--gold-dark); }

/* ============================================
 * Accessibility · 无障碍优化
 * ============================================ */

/* Skip to main content */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--gold);
  color: var(--black);
  padding: 12px 20px;
  font-weight: 600;
  z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus { top: 16px; }

/* Visible focus ring */
*:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* Screen reader only text */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in { animation: none; opacity: 1; }
}

/* ============================================
 * Utility
 * ============================================ */

.text-gold { color: var(--gold); }
.text-white { color: var(--white); }
.text-gray { color: var(--gray-400); }
.serif { font-family: var(--font-serif); }
.italic { font-style: italic; }
.mono { font-family: var(--font-mono); }

/* ============================================
 * Inline SVG Glyphs · 工业蓝图风视觉系统
 * 与正文共生 · 不抢戏 · stroke继承currentColor
 * ============================================ */

/* --- Logo Strip · 认证徽章icon --- */
.logo-item {
  flex-direction: column;
  gap: 10px;
}
.logo-item__icon {
  width: 30px;
  height: 30px;
  opacity: 0.75;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}
.logo-item__icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.3;
  stroke-linecap: square;
  stroke-linejoin: miter;
}
.logo-item--badge .logo-item__icon {
  width: 36px;
  height: 36px;
  opacity: 0.9;
}
.logo-item:hover .logo-item__icon {
  transform: translateY(-2px);
  opacity: 1;
}
.logo-item__text {
  display: block;
}

/* --- Product Family · Brain/Nerve/Muscle/Voice 主视觉 --- */
.product-card__glyph {
  width: 64px;
  height: 64px;
  margin-bottom: 28px;
  position: relative;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.product-card__glyph svg {
  width: 100%;
  height: 100%;
  stroke: var(--gold);
  fill: none;
  stroke-width: 1.3;
  stroke-linecap: square;
  stroke-linejoin: miter;
  transition: stroke 0.4s ease;
}
.product-card__glyph::before {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  border-top: 1px solid var(--gold-dark);
  border-left: 1px solid var(--gold-dark);
  top: -6px;
  left: -6px;
  opacity: 0.6;
}
.product-card__glyph::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  border-bottom: 1px solid var(--gold-dark);
  border-right: 1px solid var(--gold-dark);
  bottom: -6px;
  right: -6px;
  opacity: 0.6;
}
.product-card:hover .product-card__glyph svg {
  stroke: var(--gold-bright);
  transform: scale(1.05);
}
.product-card--flagship .product-card__glyph svg {
  stroke-width: 1.5;
}

/* --- Scenario · 背景行业纹样(faint backdrop) --- */
.scenario {
  position: relative;
}
.scenario__bg-glyph {
  position: absolute;
  top: 50%;
  right: -32px;
  transform: translateY(-50%);
  width: 200px;
  height: 200px;
  opacity: 0.06;
  pointer-events: none;
  transition: opacity 0.5s ease, transform 0.5s ease;
  z-index: 0;
}
.scenario__bg-glyph svg {
  width: 100%;
  height: 100%;
  stroke: var(--black);
  fill: none;
  stroke-width: 1;
  stroke-linejoin: miter;
}
.scenario:hover .scenario__bg-glyph {
  opacity: 0.12;
  transform: translateY(-50%) translateX(-6px);
}

/* --- Hero · 右侧蓝图(multi-agent team architecture diagram) --- */
.hero__blueprint {
  position: absolute;
  top: 140px;
  right: -60px;
  width: 520px;
  height: 520px;
  opacity: 0.10;
  pointer-events: none;
  z-index: 1;
  animation: blueprint-drift 24s ease-in-out infinite alternate;
}
.hero__blueprint svg {
  width: 100%;
  height: 100%;
  stroke: var(--gold);
  fill: none;
  stroke-width: 0.8;
  font-family: var(--font-mono);
}
.hero__blueprint svg text {
  fill: var(--gold);
  stroke: none;
}
@keyframes blueprint-drift {
  0%   { transform: translateY(0) rotate(0deg); }
  100% { transform: translateY(-12px) rotate(0.4deg); }
}
@media (max-width: 1280px) {
  .hero__blueprint { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .hero__blueprint { animation: none; }
}

/* --- 响应式调整 --- */
@media (max-width: 768px) {
  .product-card__glyph { width: 80px; height: 80px; margin-bottom: 24px; }
  .scenario__bg-glyph { width: 180px; height: 180px; right: -30px; opacity: 0.10; }
  .logo-item__icon { width: 28px; height: 28px; }
  .logo-item--badge .logo-item__icon { width: 32px; height: 32px; }
}

/* ============================================
 * Density Upgrade · 卡片信息密度增强
 * 全部对应"工业蓝图风"设计语言:数据点 + 状态灯 + 代号
 * ============================================ */

/* ---- Cert Wall · 国家级证书视觉(prestige medal treatment)---- */
.logo-strip__grid { gap: 14px; margin-bottom: 14px; }
.logo-item {
  min-height: 220px;
  padding: 24px 14px 20px;
  justify-content: flex-start;
  align-items: stretch;
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 25%, rgba(201,160,99,0.07) 0%, transparent 55%),
    linear-gradient(180deg, var(--black-card) 0%, var(--black) 100%);
  border: 1px solid var(--gray-900);
  position: relative;
  overflow: hidden;
}
/* 顶部金线 + filigree */
.logo-item::before {
  content: '';
  position: absolute;
  top: 0; left: 16px; right: 16px;
  height: 2px;
  background:
    linear-gradient(90deg, transparent 0%, var(--gold-dark) 15%, var(--gold) 50%, var(--gold-dark) 85%, transparent 100%);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.5s ease;
  opacity: 0.6;
}
.logo-item:hover::before { transform: scaleX(1); opacity: 1; }
/* 底部对应金线(微弱) */
.logo-item__text {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--gray-300);
  letter-spacing: 0.12em;
  margin-top: 6px;
  position: relative;
  z-index: 2;
}
.logo-item:hover {
  border-color: var(--gold-dark);
  background:
    radial-gradient(ellipse at 50% 25%, rgba(201,160,99,0.12) 0%, transparent 55%),
    linear-gradient(180deg, var(--black-card) 0%, var(--black-soft) 100%);
}

/* 主认证badge — 加重边 + 金foil感 */
.logo-item--badge {
  min-height: 260px;
  padding: 28px 16px 24px;
  border: 1.5px solid var(--gold-dark);
  background:
    radial-gradient(ellipse at 50% 22%, rgba(201,160,99,0.14) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 100%, rgba(201,160,99,0.05) 0%, transparent 50%),
    linear-gradient(180deg, var(--black-card) 0%, var(--black) 100%);
}
.logo-item--badge .logo-item__text {
  color: var(--gold);
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: 0.15em;
}
.logo-item--badge::before { background: linear-gradient(90deg, transparent, var(--gold) 15%, var(--gold-bright) 50%, var(--gold) 85%, transparent); transform: scaleX(0.8); opacity: 0.85; }
.logo-item--badge:hover::before { transform: scaleX(1); }

/* 中心徽章容器(替代原 logo-item__icon) */
.logo-item__medal {
  width: 84px;
  height: 84px;
  margin: 4px auto 14px;
  position: relative;
  z-index: 2;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.logo-item--badge .logo-item__medal {
  width: 96px;
  height: 96px;
}
.logo-item__medal svg {
  width: 100%;
  height: 100%;
  stroke: var(--gold);
  fill: none;
  stroke-width: 1.1;
  stroke-linecap: square;
  stroke-linejoin: miter;
  filter: drop-shadow(0 0 6px rgba(201,160,99,0.25));
  transition: filter 0.4s ease;
}
.logo-item:hover .logo-item__medal {
  transform: translateY(-2px) rotate(-1deg);
}
.logo-item:hover .logo-item__medal svg {
  filter: drop-shadow(0 0 10px rgba(229,193,112,0.45));
}

/* 分隔横线 + 装饰 */
.logo-item__divider {
  position: relative;
  width: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-dark) 50%, transparent);
  margin: 12px auto 10px;
  opacity: 0.65;
}
.logo-item__divider::before, .logo-item__divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 4px;
  height: 4px;
  background: var(--gold);
  transform: translateY(-50%) rotate(45deg);
  opacity: 0.7;
}
.logo-item__divider::before { left: 50%; transform: translate(-50%, -50%) rotate(45deg); }
.logo-item__divider::after  { display: none; }

/* 副信息(机构 / 年份) */
.logo-item__sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--gray-500);
  line-height: 1.6;
  text-transform: uppercase;
  margin-top: auto;
  padding-top: 4px;
  position: relative;
  z-index: 2;
}
.logo-item--badge .logo-item__sub { color: var(--gold-dark); opacity: 0.95; font-size: 10.5px; }
.logo-item:hover .logo-item__sub { color: var(--gold); }

/* 印章式年份/编号(右下角) */
.logo-item__seal {
  position: absolute;
  bottom: 8px;
  right: 8px;
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.12em;
  color: var(--gold-dark);
  border: 1px solid var(--gold-dark);
  padding: 2px 6px;
  background: rgba(201,160,99,0.06);
  opacity: 0.7;
  z-index: 2;
  transition: opacity 0.4s ease;
}
.logo-item:hover .logo-item__seal { opacity: 1; }

/* 现有 corner 装饰加强(主badge) */
.logo-item--badge .corner {
  width: 14px;
  height: 14px;
  border-color: var(--gold);
  border-width: 1.5px;
}
.logo-item--badge .corner-tl { top: 6px; left: 6px; }
.logo-item--badge .corner-br { bottom: 6px; right: 6px; }

/* 移除老 .logo-item__icon 兼容 */
.logo-item__icon { display: none; }

/* ---- Product Card · 大图标 + 特性pill + 规格行 ---- */
.product-card {
  min-height: 520px;
  padding: 64px 32px 36px;
}
.product-card__glyph {
  width: 96px;
  height: 96px;
  margin-bottom: 32px;
}
.product-card__glyph::before, .product-card__glyph::after { width: 10px; height: 10px; }

.product-card__features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 20px;
}
.product-card__feature {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--gold);
  border: 1px solid rgba(201, 160, 99, 0.32);
  padding: 4px 9px;
  text-transform: uppercase;
  background: rgba(201, 160, 99, 0.05);
  white-space: nowrap;
}
.product-card--flagship .product-card__feature {
  border-color: var(--gold);
  background: rgba(201, 160, 99, 0.1);
}

.product-card__spec {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-500);
  line-height: 1.65;
  letter-spacing: 0.05em;
  margin: 0 0 22px;
  padding: 12px 14px;
  border-left: 1px solid var(--gold-dark);
  background: rgba(201, 160, 99, 0.04);
}
.product-card__spec strong {
  color: var(--gold);
  font-weight: 600;
}

/* ---- Scenario · 可见的工业图样 + 三段特性列表 ---- */
.scenario {
  min-height: 380px;
  padding: 40px 28px 32px;
}
.scenario__bg-glyph {
  width: 260px;
  height: 260px;
  right: -50px;
  opacity: 0.11;
}
.scenario__bg-glyph svg { stroke-width: 1.4; }
.scenario:hover .scenario__bg-glyph { opacity: 0.20; }

.scenario__features {
  list-style: none;
  margin: 16px 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
  position: relative;
  z-index: 1;
}
.scenario__feature {
  font-size: 13px;
  color: var(--gray-700);
  line-height: 1.55;
  padding-left: 16px;
  position: relative;
  letter-spacing: 0.005em;
}
.scenario__feature::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 1px;
  background: var(--gold);
}
.scenario:hover .scenario__feature { color: var(--black); }

.scenario__icon {
  margin-bottom: 22px;
}

/* ---- Architecture · 描述 + 状态灯 ---- */
.arch-layer__items { gap: 12px; }
.arch-item {
  padding: 16px 18px;
  min-width: 160px;
  flex: 1 1 0;
  position: relative;
}
@media (min-width: 1024px) {
  .arch-layer__items { flex-wrap: nowrap; }
}
.arch-item__name {
  font-size: 15px;
  margin-bottom: 4px;
}
.arch-item__desc {
  display: block;
  font-size: 12px;
  color: var(--gray-500);
  margin-top: 4px;
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: 0.005em;
}
.arch-item--gold .arch-item__desc { color: var(--gold-dark); }

.arch-item__status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--gold);
  letter-spacing: 0.12em;
  margin-top: 10px;
  text-transform: uppercase;
}
.arch-item__status::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--gold);
  animation: status-blink 2.4s ease-in-out infinite;
}
@keyframes status-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.section--light .arch-item__desc,
.architecture[style*="white"] .arch-item__desc { color: var(--gray-700); }
.section--light .arch-item__status,
.architecture[style*="white"] .arch-item__status { color: var(--gold-dark); }
.section--light .arch-item__status::before,
.architecture[style*="white"] .arch-item__status::before {
  background: var(--gold-dark);
  box-shadow: 0 0 6px var(--gold-dark);
}
@media (prefers-reduced-motion: reduce) {
  .arch-item__status::before { animation: none; }
}