/* =========================================
   某某公司 · 节能服务 - 主样式表
   设计理念:绿色科技未来感 / 数据驱动 / 行业专业
   ========================================= */

/* ---------- CSS 变量 / 设计系统 ---------- */
:root {
  /* 主色 - 节能绿 */
  --primary: #0A4D3C;        /* 深翠绿 - 主色 */
  --primary-deep: #062E22;   /* 极深绿 */
  --primary-darker: #03180F; /* 几乎黑 */
  --accent: #00E676;         /* 鲜绿 - 强调 */
  --accent-2: #FFB627;       /* 暖琥珀 - 能量/温暖 */
  --amber: #F59E0B;          /* 深琥珀 */
  --warn: #EF4444;           /* 警示红 */

  /* 中性色 */
  --bg: #FAFDF9;             /* 米白绿 */
  --bg-2: #F0FDF4;           /* 浅薄荷 */
  --bg-3: #E6F7EC;           /* 浅翠 */
  --bg-dark: #0A1929;        /* 深蓝黑 */
  --ink: #0F1A14;            /* 主文字 */
  --ink-2: #2C3E34;          /* 次文字 */
  --ink-3: #5A6B62;          /* 辅助文字 */
  --line: #D4E8DC;           /* 边框/分隔 */
  --line-2: #E8F1EB;         /* 浅边框 */

  /* 字体 */
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-serif: "Noto Serif SC", "STSong", serif;
  --font-mono: "JetBrains Mono", monospace;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(10, 77, 60, 0.06);
  --shadow: 0 8px 24px rgba(10, 77, 60, 0.08);
  --shadow-lg: 0 20px 60px rgba(10, 77, 60, 0.12);
  --shadow-xl: 0 30px 80px rgba(10, 77, 60, 0.18);

  /* 半径 */
  --r-sm: 8px;
  --r: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-pill: 999px;

  /* 缓动 */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 重置 ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
*::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: transparent; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

::selection { background: var(--accent); color: var(--primary-deep); }

/* 减少动效 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- 容器 ---------- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 通用工具类 ---------- */
.gradient-text {
  background: linear-gradient(120deg, var(--accent) 0%, #00BFA5 50%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--r-pill);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.2px;
  white-space: nowrap;
  transition: all 0.25s var(--ease);
  position: relative;
  overflow: hidden;
}
.btn--primary {
  background: linear-gradient(120deg, var(--accent) 0%, #00C853 100%);
  color: var(--primary-deep);
  box-shadow: 0 6px 20px rgba(0, 230, 118, 0.35);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 230, 118, 0.5);
}
.btn--primary:active { transform: translateY(0); }
.btn--ghost {
  background: rgba(255, 255, 255, 0.08);
  border: 1.5px solid currentColor;
  color: var(--ink);
  backdrop-filter: blur(8px);
}
.hero .btn--ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}
.btn--ghost:hover {
  background: currentColor;
  color: var(--primary-deep);
}
.hero .btn--ghost:hover { color: var(--primary-deep); background: #fff; border-color: #fff; }
.btn--lg { padding: 16px 32px; font-size: 16px; }
.btn--sm { padding: 8px 16px; font-size: 13px; }

/* ---------- 顶部通知 ---------- */
.topbar {
  background: var(--primary-darker);
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(0, 230, 118, 0.15);
}
.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.topbar__left { display: flex; align-items: center; gap: 8px; }
.topbar__right { display: flex; align-items: center; gap: 12px; }
.topbar__right a { transition: color 0.2s; }
.topbar__right a:hover { color: var(--accent); }
.topbar__dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
}
.topbar__divider { opacity: 0.3; }

/* ---------- 导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line-2);
  transition: all 0.3s var(--ease);
}
.nav.is-scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-sm);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  box-shadow: 0 2px 8px rgba(10, 77, 60, 0.1);
}
.logo__text { display: flex; flex-direction: column; line-height: 1.1; }
.logo__text strong { font-size: 18px; font-weight: 700; color: var(--primary-deep); }
.logo__text em { font-size: 10px; font-style: normal; color: var(--ink-3); letter-spacing: 1.5px; }

.nav__menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.nav__link {
  position: relative;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
  border-radius: var(--r-pill);
  transition: all 0.2s;
}
.nav__link::before {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 16px;
  height: 3px;
  border-radius: 2px;
  background: var(--accent);
  transition: transform 0.3s var(--ease);
}
.nav__link:hover { color: var(--primary); }
.nav__link.active { color: var(--primary); }
.nav__link.active::before { transform: translateX(-50%) scaleX(1); }

.nav__cta { flex-shrink: 0; }

.nav__burger {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-left: auto;
}
.nav__burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}
.nav__burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 移动端菜单 ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 200;
  visibility: hidden;
  opacity: 0;
  transition: all 0.4s var(--ease);
}
.mobile-menu.is-open { visibility: visible; opacity: 1; }
.mobile-menu__bg {
  position: absolute;
  inset: 0;
  background: rgba(10, 25, 41, 0.6);
  backdrop-filter: blur(8px);
}
.mobile-menu__panel {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: min(380px, 85vw);
  background: linear-gradient(180deg, var(--primary-deep) 0%, var(--primary-darker) 100%);
  color: #fff;
  padding: 100px 32px 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transform: translateX(100%);
  transition: transform 0.5s var(--ease);
}
.mobile-menu.is-open .mobile-menu__panel { transform: translateX(0); }
.mobile-menu__list { display: flex; flex-direction: column; gap: 4px; }
.mobile-menu__list a {
  display: block;
  padding: 14px 16px;
  font-size: 22px;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.25s;
}
.mobile-menu__list a:hover {
  color: var(--accent);
  padding-left: 24px;
}
.mobile-menu__panel .btn--primary {
  background: var(--accent);
  justify-content: center;
}
.mobile-menu__footer {
  margin-top: auto;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
  text-align: center;
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - 110px);
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  padding: 80px 0 100px;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.55) brightness(0.55);
  transform: scale(1.05);
  animation: heroZoom 20s ease-in-out infinite alternate;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at top right, rgba(0, 230, 118, 0.25), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(255, 182, 39, 0.18), transparent 50%),
    linear-gradient(135deg, rgba(6, 46, 34, 0.85) 0%, rgba(3, 24, 15, 0.95) 100%);
}
.hero__flow {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}
.particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}
.particle {
  position: absolute;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: float 8s linear infinite;
  opacity: 0;
}

.hero__content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(0, 230, 118, 0.12);
  border: 1px solid rgba(0, 230, 118, 0.3);
  border-radius: var(--r-pill);
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.5px;
}
.badge--live .badge__pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.7);
  animation: pulseRing 2s infinite;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(40px, 6vw, 76px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -1px;
  margin: 28px 0 24px;
}
.hero__title-line {
  display: block;
  overflow: hidden;
  animation: slideUp 1s var(--ease) both;
}
.hero__title-line:nth-child(2) { animation-delay: 0.15s; }

.hero__sub {
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
  max-width: 540px;
  margin-bottom: 36px;
  animation: slideUp 1s var(--ease) 0.3s both;
}
.hero__sub em { color: var(--accent); font-style: normal; font-weight: 600; }

.hero__cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
  animation: slideUp 1s var(--ease) 0.45s both;
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  animation: slideUp 1s var(--ease) 0.6s both;
}
.hero__tags li {
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--r-pill);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
}

/* Hero Stats */
.hero__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  animation: slideUp 1s var(--ease) 0.7s both;
}
.stat-card {
  position: relative;
  padding: 24px 20px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--r-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: all 0.4s var(--ease);
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}
.stat-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(0, 230, 118, 0.3);
}
.stat-card:hover::before { opacity: 1; }
.stat-card--accent {
  background: linear-gradient(135deg, rgba(0, 230, 118, 0.15), rgba(255, 182, 39, 0.08));
  border-color: rgba(0, 230, 118, 0.3);
}
.stat-card--mini {
  background: rgba(0, 230, 118, 0.08);
  border-color: rgba(0, 230, 118, 0.2);
}
.stat-card__icon {
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 230, 118, 0.15);
  border-radius: 10px;
  color: var(--accent);
  margin-bottom: 16px;
}
.stat-card__num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: #fff;
  margin-bottom: 8px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.stat-card__num::after {
  content: attr(data-suffix);
  font-size: 0.45em;
  color: var(--accent);
  font-weight: 500;
}
.stat-card__label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.5;
}
.stat-card__label small { font-size: 11px; opacity: 0.6; }

.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: rgba(255, 255, 255, 0.6);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: color 0.3s;
}
.hero__scroll:hover { color: var(--accent); }
.hero__scroll span {
  width: 1px; height: 40px;
  background: currentColor;
  position: relative;
  overflow: hidden;
}
.hero__scroll span::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 30%;
  background: var(--accent);
  animation: scrollLine 2s ease-in-out infinite;
}
.hero__scroll em { font-style: normal; writing-mode: horizontal-tb; }

/* ---------- Section 通用 ---------- */
.section {
  padding: 100px 0;
  position: relative;
}
.section__head { margin-bottom: 64px; }
.section__head--center { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.section__kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2.5px;
  color: var(--accent);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 16px;
  padding: 6px 14px;
  background: var(--bg-2);
  border-radius: var(--r-pill);
  border: 1px solid var(--bg-3);
}
.section__title {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 900;
  line-height: 1.15;
  color: var(--primary-deep);
  letter-spacing: -0.5px;
  margin-bottom: 20px;
}
.section__title em { font-style: normal; }
.section__desc {
  font-size: clamp(15px, 1.3vw, 17px);
  color: var(--ink-2);
  line-height: 1.8;
  max-width: 680px;
}
.section__desc strong { color: var(--primary); font-weight: 600; }
.section__head--center .section__desc { margin: 0 auto; }

/* ---------- Pain Section ---------- */
.pain {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  position: relative;
}
.pain::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}
.pain__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 56px;
}
.pain-card {
  position: relative;
  padding: 40px 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  transition: all 0.4s var(--ease);
  overflow: hidden;
}
.pain-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  opacity: 0;
  transition: opacity 0.4s;
  z-index: 0;
}
.pain-card > * { position: relative; z-index: 1; }
.pain-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.pain-card:hover::before { opacity: 1; }
.pain-card__num {
  font-family: var(--font-mono);
  font-size: 80px;
  font-weight: 700;
  line-height: 0.8;
  color: var(--bg-3);
  position: absolute;
  top: 12px;
  right: 24px;
  letter-spacing: -4px;
  z-index: 0;
  transition: color 0.4s;
}
.pain-card:hover .pain-card__num { color: rgba(0, 230, 118, 0.15); }
.pain-card__icon {
  width: 64px; height: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: var(--accent);
  border-radius: 16px;
  margin-bottom: 24px;
  box-shadow: 0 8px 24px rgba(10, 77, 60, 0.2);
}
.pain-card h3 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 12px;
}
.pain-card p {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 20px;
}
.pain-card__quote {
  font-style: italic;
  font-size: 13px;
  color: var(--ink-3);
  padding: 12px 16px;
  background: var(--bg-2);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
}

.pain__cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 32px 40px;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: #fff;
  border-radius: var(--r-xl);
  position: relative;
  overflow: hidden;
}
.pain__cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 230, 118, 0.2), transparent 60%);
  pointer-events: none;
}
.pain__cta-text { position: relative; z-index: 1; }
.pain__cta-text strong {
  display: block;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}
.pain__cta-text span { color: rgba(255, 255, 255, 0.75); font-size: 14px; }
.pain__cta-text em { color: var(--accent); font-style: normal; font-weight: 600; }
.pain__cta .btn { position: relative; z-index: 1; }

/* ---------- Trust Band ---------- */
.trust {
  background: var(--primary-darker);
  color: #fff;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.trust::before, .trust::after {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  pointer-events: none;
}
.trust::before {
  top: -200px; left: -100px;
  background: var(--accent);
}
.trust::after {
  bottom: -200px; right: -100px;
  background: var(--accent-2);
}
.trust__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 40px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.trust__item { position: relative; }
.trust__item::after {
  content: '';
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 40px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}
.trust__item:last-child::after { display: none; }
.trust__num {
  font-family: var(--font-mono);
  font-size: clamp(48px, 5vw, 72px);
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 12px;
  display: inline-flex;
  align-items: baseline;
}
.trust__label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 1px;
}
.trust__note {
  margin-top: 56px;
  text-align: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
  z-index: 1;
}

/* ---------- Service Section ---------- */
.service__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.svc-card {
  position: relative;
  padding: 32px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: all 0.35s var(--ease);
  overflow: hidden;
}
.svc-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--c1, var(--accent)), var(--c2, var(--primary)));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}
.svc-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.svc-card:hover::after { transform: scaleX(1); }
.svc-card__icon {
  width: 56px; height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c1, var(--accent)), var(--c2, var(--primary)));
  color: #fff;
  border-radius: 14px;
  margin-bottom: 20px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}
.svc-card h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 8px;
}
.svc-card p {
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
}
.svc-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.svc-card__tags span {
  font-size: 11px;
  padding: 3px 10px;
  background: var(--bg-2);
  color: var(--ink-3);
  border-radius: var(--r-pill);
  border: 1px solid var(--line-2);
}
.svc-card--cta {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: #fff;
  border-color: transparent;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}
.svc-card--cta h3, .svc-card--cta p { color: #fff; }
.svc-card--cta p { color: rgba(255, 255, 255, 0.7); }
.svc-card--cta .svc-card__icon {
  background: rgba(0, 230, 118, 0.2);
  color: var(--accent);
}
.svc-card--cta .btn--ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
  margin-top: 8px;
}
.svc-card--cta .btn--ghost:hover { color: var(--primary-deep); background: var(--accent); border-color: var(--accent); }

/* ---------- Diagnose Section ---------- */
.diagnose {
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
  position: relative;
}
.diag__layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 56px;
  align-items: start;
}
.diag__steps { position: sticky; top: 100px; }
.diag-step {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px dashed var(--line);
  position: relative;
  cursor: pointer;
  transition: all 0.3s;
}
.diag-step:last-child { border-bottom: 0; }
.diag-step__no {
  flex-shrink: 0;
  width: 48px; height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-3);
  background: var(--bg);
  border: 2px solid var(--line);
  border-radius: 14px;
  transition: all 0.3s var(--ease);
}
.diag-step h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 6px;
  transition: color 0.3s;
}
.diag-step p { color: var(--ink-2); font-size: 14px; line-height: 1.6; }
.diag-step.is-active .diag-step__no {
  background: var(--accent);
  color: var(--primary-deep);
  border-color: var(--accent);
  box-shadow: 0 8px 20px rgba(0, 230, 118, 0.3);
}
.diag-step.is-active h4 { color: var(--primary); }
.diag-step:hover:not(.is-active) .diag-step__no {
  border-color: var(--accent);
  color: var(--primary);
}

.diag-demo {
  background: #fff;
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
  overflow: hidden;
  position: relative;
}
.diag-demo::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent-2));
}
.diag-demo__head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 20px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line-2);
}
.diag-demo__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: #ddd;
}
.diag-demo__dot:nth-child(1) { background: #FF5F57; }
.diag-demo__dot:nth-child(2) { background: #FEBC2E; }
.diag-demo__dot:nth-child(3) { background: #28C840; }
.diag-demo__title {
  margin-left: 12px;
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.5px;
}
.diag-demo__body {
  position: relative;
  min-height: 380px;
  padding: 32px;
}
.diag-demo__pane {
  position: absolute;
  inset: 32px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.4s var(--ease);
}
.diag-demo__pane.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.diag-demo__step {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.diag-demo__pane h5 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 20px;
}
.diag-demo__tip {
  display: block;
  margin-top: 24px;
  color: var(--ink-3);
  font-size: 12px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip {
  padding: 8px 16px;
  background: var(--bg-2);
  color: var(--ink-2);
  border: 1.5px solid var(--line);
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}
.chip:hover { border-color: var(--accent); color: var(--primary); }
.chip.is-on {
  background: var(--accent);
  color: var(--primary-deep);
  border-color: var(--accent);
}

.range { padding: 8px 0; }
.range input {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: linear-gradient(to right, var(--accent) 0%, var(--accent) 50%, var(--line) 50%, var(--line) 100%);
  border-radius: 3px;
  outline: none;
}
.range input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--accent);
  cursor: grab;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transition: transform 0.2s;
}
.range input::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.15); }
.range input::-moz-range-thumb {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--accent);
  cursor: grab;
}
.range__vals {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
}
.range__now { color: var(--primary); font-weight: 700; font-size: 14px; }

.drop {
  border: 2px dashed var(--line);
  border-radius: var(--r);
  padding: 48px 24px;
  text-align: center;
  color: var(--ink-3);
  transition: all 0.3s;
  cursor: pointer;
}
.drop:hover {
  border-color: var(--accent);
  background: var(--bg-2);
  color: var(--primary);
}
.drop svg { width: 40px; height: 40px; margin-bottom: 12px; }
.drop p { font-size: 15px; margin-bottom: 6px; }
.drop p strong { color: var(--accent); }
.drop small { font-size: 12px; }

.report { display: flex; flex-direction: column; gap: 16px; }
.report__main {
  text-align: center;
  padding: 20px;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: #fff;
  border-radius: var(--r);
}
.report__main small {
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.report__num {
  font-family: var(--font-mono);
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin-bottom: 8px;
}
.report__num em { font-size: 28px; font-style: normal; }
.report__main p { font-size: 11px; color: rgba(255, 255, 255, 0.6); }
.report__list { display: flex; flex-direction: column; gap: 8px; }
.report__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-2);
  border-radius: var(--r-sm);
  font-size: 14px;
  border: 1px solid var(--line-2);
}
.report__row b { color: var(--primary); font-weight: 700; }
.report__cta { display: flex; gap: 8px; margin-top: 4px; }
.report__cta .btn { flex: 1; justify-content: center; }

.diag-demo__nav {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 32px;
  background: var(--bg-2);
  border-top: 1px solid var(--line-2);
}
.diag-demo__nav button {
  padding: 8px 16px;
  font-size: 13px;
  color: var(--ink-2);
  border-radius: var(--r-pill);
  transition: all 0.2s;
}
.diag-demo__nav button:hover {
  background: var(--bg-3);
  color: var(--primary);
}
.diag-demo__progress {
  flex: 1;
  height: 4px;
  background: var(--line);
  border-radius: 2px;
  overflow: hidden;
}
.diag-demo__progress span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  border-radius: 2px;
  width: 25%;
  transition: width 0.5s var(--ease);
}
.diag-demo__next { background: var(--accent); color: var(--primary-deep); font-weight: 600; }
.diag-demo__next:hover { background: #00C853; color: var(--primary-deep); }
.diag-demo__next:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------- Cases Section ---------- */
.cases { background: var(--bg); }
.cases__filter {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}
.filter-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.filter-label {
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 1px;
  margin-right: 8px;
  min-width: 48px;
}
.filter {
  padding: 6px 14px;
  font-size: 13px;
  color: var(--ink-2);
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: var(--r-pill);
  transition: all 0.2s;
}
.filter:hover { border-color: var(--accent); color: var(--primary); }
.filter.is-on {
  background: var(--primary-deep);
  color: #fff;
  border-color: var(--primary-deep);
}

.cases__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.case-card {
  position: relative;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: all 0.4s var(--ease);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.case-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 80px;
  background: linear-gradient(180deg, var(--bg-2), transparent);
  pointer-events: none;
  opacity: 0.6;
}
.case-card > * { position: relative; z-index: 1; }
.case-card__top {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.case-tag {
  font-size: 11px;
  padding: 4px 10px;
  background: var(--bg-2);
  color: var(--ink-3);
  border-radius: var(--r-pill);
  border: 1px solid var(--line-2);
}
.case-tag--green {
  background: rgba(0, 230, 118, 0.12);
  color: var(--primary);
  border-color: rgba(0, 230, 118, 0.3);
}
.case-card h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 6px;
  line-height: 1.3;
}
.case-card p {
  font-size: 13px;
  color: var(--ink-3);
  margin-bottom: 20px;
}
.case-card__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 16px;
  background: var(--bg-2);
  border-radius: var(--r);
  margin-bottom: 16px;
}
.case-card__metrics small {
  display: block;
  font-size: 11px;
  color: var(--ink-3);
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}
.case-card__metrics b {
  display: block;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}
.case-card__metrics b em {
  font-size: 11px;
  font-style: normal;
  color: var(--ink-3);
  margin-left: 2px;
  font-weight: 500;
}
.case-card__chart {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line-2);
  font-size: 11px;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.case-card__chart svg {
  width: 100%;
  height: 40px;
  color: var(--ink-3);
  flex: 1;
}
.case-card__chart[data-chart="up"] svg { color: var(--ink-3); }
.case-card:hover .case-card__chart svg { color: var(--accent); }

.cases__more {
  margin-top: 48px;
  text-align: center;
  padding: 32px;
  background: var(--bg-2);
  border-radius: var(--r-lg);
  border: 1px dashed var(--line);
}
.cases__more p { color: var(--ink-2); margin-bottom: 16px; }

/* ---------- EMC Section ---------- */
.emc {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}
.emc__tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}
.emc__tabs::-webkit-scrollbar { display: none; }
.emc-tab {
  position: relative;
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  color: var(--ink-3);
  font-weight: 600;
  white-space: nowrap;
  border-radius: 0;
  transition: all 0.3s;
}
.emc-tab span { font-size: 18px; }
.emc-tab small { font-size: 11px; color: var(--ink-3); font-weight: 400; }
.emc-tab::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0;
  width: 100%; height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease);
}
.emc-tab:hover { color: var(--primary); }
.emc-tab.is-on { color: var(--primary); }
.emc-tab.is-on::after { transform: scaleX(1); }

.emc__panels { position: relative; }
.emc-panel {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 40px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  animation: panelIn 0.5s var(--ease);
}
.emc-panel.is-on { display: grid; }
.emc-panel__left h3 {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 16px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.emc-panel__left h3 small {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  padding: 4px 10px;
  background: var(--bg-2);
  border-radius: var(--r-pill);
}
.emc-panel__left p { color: var(--ink-2); line-height: 1.8; margin-bottom: 24px; }
.emc-list { display: flex; flex-direction: column; gap: 12px; }
.emc-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.6;
}
.emc-list__dot {
  flex-shrink: 0;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 8px;
  box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.15);
}

.emc-calc {
  padding: 32px;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
}
.emc-calc h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 20px;
}
.emc-calc__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}
.emc-calc__row:last-of-type { border-bottom: 0; }
.emc-calc__row b {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}
.emc-calc__row--hi { padding: 16px; background: #fff; border-radius: var(--r); border: 1px solid var(--accent); margin: 8px 0; }
.emc-calc__row--hi b { color: var(--primary); font-size: 18px; }
.bar {
  margin-top: 20px;
  height: 40px;
  background: var(--bg);
  border-radius: var(--r-sm);
  overflow: hidden;
  position: relative;
}
.bar__fill {
  width: var(--w, 50%);
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  font-size: 11px;
  color: #fff;
  font-weight: 600;
  position: relative;
  transition: width 0.6s var(--ease);
}
.bar__fill em, .bar__fill i { font-style: normal; }

/* ---------- Calc Section ---------- */
.calc { background: var(--bg); }
.calc__box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 40px;
  box-shadow: var(--shadow);
}
.calc__inputs { display: flex; flex-direction: column; gap: 28px; }
.calc-field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-deep);
  margin-bottom: 12px;
}
.calc-field__row {
  display: flex;
  align-items: center;
  gap: 16px;
}
.calc-field__row input[type="range"] { flex: 1; }
.calc-field__row output {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  min-width: 60px;
  text-align: right;
}
.calc-field__scale {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 11px;
  color: var(--ink-3);
  font-family: var(--font-mono);
}

.calc__result { display: flex; flex-direction: column; gap: 20px; }
.calc-card {
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: #fff;
  border-radius: var(--r-lg);
  position: relative;
  overflow: hidden;
}
.calc-card::before {
  content: '';
  position: absolute;
  top: -50%; right: -20%;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(0, 230, 118, 0.15), transparent 60%);
  pointer-events: none;
}
.calc-card__item { position: relative; z-index: 1; }
.calc-card__item + .calc-card__divider { margin-top: 16px; }
.calc-card__divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  margin-bottom: 16px;
}
.calc-card__item small {
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.calc-card__num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: #fff;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.calc-card__num em { font-size: 14px; color: rgba(255, 255, 255, 0.6); font-style: normal; }
.calc-card__item--accent .calc-card__num { color: var(--accent); }

.calc__cta {
  justify-content: center;
  background: var(--accent);
  color: var(--primary-deep);
  box-shadow: 0 8px 24px rgba(0, 230, 118, 0.3);
}
.calc__cta:hover { background: #00C853; }

/* ---------- Process Timeline ---------- */
.process { background: var(--bg-2); }
.process__timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}
.process__timeline::before {
  content: '';
  position: absolute;
  top: 50px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent-2));
  z-index: 0;
}
.proc {
  position: relative;
  text-align: center;
  padding: 24px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  z-index: 1;
  transition: all 0.3s var(--ease);
}
.proc:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}
.proc__no {
  width: 56px; height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  border: 4px solid #fff;
  border-radius: 50%;
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(10, 77, 60, 0.2);
}
.proc h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 8px;
}
.proc p {
  font-size: 12px;
  color: var(--ink-3);
  line-height: 1.5;
}
.proc p strong { color: var(--primary); }

/* ---------- Standards ---------- */
.standards {
  background: var(--primary-darker);
  color: #fff;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.standards::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 230, 118, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 230, 118, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.std__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  position: relative;
  z-index: 1;
}
.std__left .section__kicker {
  color: var(--accent);
  background: rgba(0, 230, 118, 0.1);
  border-color: rgba(0, 230, 118, 0.2);
}
.std__left h2 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
}
.std__left p { color: rgba(255, 255, 255, 0.75); line-height: 1.8; margin-bottom: 28px; }
.std__left p strong { color: var(--accent); }
.std__left .btn--ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}
.std__left .btn--ghost:hover { background: var(--accent); color: var(--primary-deep); border-color: var(--accent); }

.std__right {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.std-card {
  padding: 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r);
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.std-card:hover {
  background: rgba(0, 230, 118, 0.08);
  border-color: rgba(0, 230, 118, 0.3);
  transform: translateY(-4px);
}
.std-card__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  background: rgba(0, 230, 118, 0.15);
  color: var(--accent);
  border-radius: var(--r-sm);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.std-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}
.std-card p { font-size: 13px; color: rgba(255, 255, 255, 0.6); line-height: 1.5; }

/* ---------- FAQ ---------- */
.faq__list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  transition: all 0.3s var(--ease);
}
.faq-item[open] { border-color: var(--accent); box-shadow: var(--shadow); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-deep);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item__plus {
  position: relative;
  width: 24px; height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--bg-2);
  transition: all 0.3s;
}
.faq-item__plus::before, .faq-item__plus::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: var(--primary);
  transition: all 0.3s;
}
.faq-item__plus::before { width: 10px; height: 2px; }
.faq-item__plus::after { width: 2px; height: 10px; }
.faq-item[open] .faq-item__plus { background: var(--accent); transform: rotate(180deg); }
.faq-item[open] .faq-item__plus::before, .faq-item[open] .faq-item__plus::after { background: var(--primary-deep); }
.faq-item[open] .faq-item__plus::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq-item__body {
  padding: 0 28px 24px;
  color: var(--ink-2);
  line-height: 1.8;
  font-size: 15px;
  animation: fadeIn 0.4s var(--ease);
}
.faq-item__body strong { color: var(--primary); font-weight: 600; }

/* ---------- CTA Section ---------- */
.cta {
  position: relative;
  padding: 100px 0;
  color: #fff;
  overflow: hidden;
}
.cta__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.cta__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.3) brightness(0.4);
  transform: scale(1.05);
}
.cta__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at top left, rgba(0, 230, 118, 0.2), transparent 60%),
    linear-gradient(135deg, rgba(6, 46, 34, 0.95), rgba(3, 24, 15, 0.95));
}
.cta__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.cta__left h2 {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
}
.cta__left p { color: rgba(255, 255, 255, 0.78); font-size: 16px; line-height: 1.8; margin-bottom: 32px; }
.cta__left p strong { color: var(--accent); }
.cta__points { display: flex; flex-direction: column; gap: 14px; }
.cta__points li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
}
.cta__check {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: rgba(0, 230, 118, 0.2);
  border: 1.5px solid var(--accent);
  position: relative;
  flex-shrink: 0;
}
.cta__check::after {
  content: '';
  position: absolute;
  top: 4px; left: 7px;
  width: 6px; height: 11px;
  border: solid var(--accent);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.cta__form {
  padding: 40px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--r-xl);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.cta__form h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 24px;
  color: #fff;
}
.form-row { margin-bottom: 16px; }
.form-row label {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 6px;
}
.form-row label span { color: var(--accent); }
.form-row input, .form-row select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--r-sm);
  color: #fff;
  font-size: 14px;
  transition: all 0.2s;
}
.form-row input::placeholder { color: rgba(255, 255, 255, 0.4); }
.form-row input:focus, .form-row select:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent);
}
.form-row select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, #fff 50%), linear-gradient(135deg, #fff 50%, transparent 50%); background-position: calc(100% - 20px) calc(1em + 2px), calc(100% - 15px) calc(1em + 2px); background-size: 5px 5px; background-repeat: no-repeat; }
.form-row select option { background: var(--primary-deep); color: #fff; }
.form-submit { width: 100%; justify-content: center; margin-top: 8px; }
.form-tip { display: block; text-align: center; margin-top: 12px; color: rgba(255, 255, 255, 0.5); font-size: 11px; }

/* ---------- Footer ---------- */
.footer {
  background: var(--primary-darker);
  color: #fff;
  padding: 80px 0 24px;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: '';
  position: absolute;
  top: -160px; right: -160px;
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(0, 230, 118, 0.15), transparent 60%);
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}
.footer::after {
  content: '';
  position: absolute;
  bottom: -120px; left: -120px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(255, 182, 39, 0.08), transparent 60%);
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

/* ---------- 栏目页 footer 网格（4 列） ---------- */
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 56px;
  position: relative;
  z-index: 1;
}
.footer__col h5 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 12px;
}
.footer__col h5::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px; height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.footer__col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer__col li { margin: 0; }
.footer__col a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  padding: 6px 0;
  transition: all 0.2s var(--ease);
  position: relative;
}
.footer__col a::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 50%;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateY(-50%) scale(0);
  transition: transform 0.2s var(--ease);
}
.footer__col a:hover {
  color: var(--accent);
  padding-left: 12px;
}
.footer__col a:hover::before { transform: translateY(-50%) scale(1); }

/* ---------- 品牌列 ---------- */
.footer__col--brand .logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.footer__col--brand .logo__text strong {
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: block;
  letter-spacing: 0.5px;
}
.footer__col--brand .logo__text em {
  display: block;
  color: var(--accent);
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  margin-top: 2px;
}
.footer__col--brand p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  line-height: 1.7;
  margin: 0 0 24px;
  max-width: 360px;
}
.footer__col--brand p strong { color: var(--accent); font-weight: 600; }
.footer__cert {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.footer__cert span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: rgba(255, 255, 255, 0.85);
  padding: 6px 12px;
  background: rgba(0, 230, 118, 0.08);
  border: 1px solid rgba(0, 230, 118, 0.2);
  border-radius: var(--r-pill);
  transition: all 0.2s var(--ease);
}
.footer__cert span:hover {
  background: rgba(0, 230, 118, 0.15);
  border-color: var(--accent);
  color: var(--accent);
}
.footer__cert span::before {
  content: '✓';
  color: var(--accent);
  font-size: 10px;
  font-weight: 900;
}

/* ---------- 联系列 ---------- */
.footer__contact {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer__contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.5;
}
.footer__contact li::before {
  content: '';
  flex-shrink: 0;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 7px;
  box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.15);
}
.footer__contact b,
.footer__contact strong {
  color: #fff;
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

/* ---------- 社交链接 ---------- */
.footer__social {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}
.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  transition: all 0.3s var(--ease);
}
.footer__social a:hover {
  background: var(--accent);
  color: var(--primary-deep);
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 16px -4px rgba(0, 230, 118, 0.4);
}
.footer__social svg { width: 16px; height: 16px; }

/* ---------- 订阅条 ---------- */
.footer__subscribe {
  display: flex;
  gap: 8px;
  margin-top: 20px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--r);
  max-width: 360px;
}
.footer__subscribe input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 13px;
  font-family: inherit;
  padding: 4px 8px;
}
.footer__subscribe input::placeholder { color: rgba(255, 255, 255, 0.4); }
.footer__subscribe button {
  padding: 8px 14px;
  background: var(--accent);
  color: var(--primary-deep);
  border: none;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.footer__subscribe button:hover {
  background: #00C853;
  transform: translateX(2px);
}

/* ---------- 二维码/品牌装饰 ---------- */
.footer__qr {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-top: 16px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r);
  max-width: 280px;
}
.footer__qr-box {
  width: 64px; height: 64px;
  background: #fff;
  border-radius: 6px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.footer__qr-box::before,
.footer__qr-box::after {
  content: '';
  position: absolute;
  background: var(--primary-deep);
}
.footer__qr-box::before {
  width: 18px; height: 18px;
  top: 6px; left: 6px;
  border-radius: 2px;
  background:
    linear-gradient(#fff 0 0) padding-box,
    var(--primary-deep) border-box;
  border: 4px solid var(--primary-deep);
}
.footer__qr-box::after {
  width: 18px; height: 18px;
  top: 6px; right: 6px;
  border: 4px solid var(--primary-deep);
  border-radius: 2px;
}
.footer__qr-dots {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, var(--primary-deep) 1.5px, transparent 1.5px);
  background-size: 5px 5px;
  background-position: 8px 8px;
  opacity: 0.5;
}
.footer__qr-text { flex: 1; }
.footer__qr-text b {
  display: block;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
}
.footer__qr-text span {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.4;
}

/* ---------- 底部分隔线与版权 ---------- */
.footer__divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
  margin: 0 0 24px;
  position: relative;
  z-index: 1;
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 0;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  position: relative;
  z-index: 1;
}
.footer__bottom span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer__bottom a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color 0.2s;
}
.footer__bottom a:hover { color: var(--accent); }
.footer__bottom-links {
  display: inline-flex;
  align-items: center;
  gap: 16px;
}
.footer__bottom-links a {
  position: relative;
  padding: 0 0 0 16px;
}
.footer__bottom-links a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px; height: 4px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
}
.footer__bottom-links a:hover::before { background: var(--accent); }

/* ---------- 回到顶部 ---------- */
.to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px; height: 48px;
  background: var(--accent);
  color: var(--primary-deep);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 230, 118, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s var(--ease);
  z-index: 50;
}
.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.to-top:hover { transform: translateY(-4px); }

/* ---------- 滚动揭示动画 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 关键帧动画 ---------- */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}
@keyframes pulseRing {
  0% { box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.7); }
  70% { box-shadow: 0 0 0 8px rgba(0, 230, 118, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 230, 118, 0); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes heroZoom {
  from { transform: scale(1.05); }
  to { transform: scale(1.15); }
}
@keyframes scrollLine {
  0% { top: -30%; }
  100% { top: 100%; }
}
@keyframes float {
  0% { transform: translateY(100vh) translateX(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100vh) translateX(20px); opacity: 0; }
}
@keyframes panelIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .diag__layout { grid-template-columns: 1fr; }
  .diag__steps {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .diag-step { padding: 16px; border: 1px solid var(--line); border-radius: var(--r); }
  .diag-step:last-child { grid-column: span 2; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 40px 32px; }
  .footer__col--brand { grid-column: span 2; }
  .std__grid { grid-template-columns: 1fr; }
}

@media (max-width: 960px) {
  .nav__menu { display: none; }
  .nav__cta { display: none; }
  .nav__burger { display: flex; }
  .hero__content { grid-template-columns: 1fr; gap: 40px; }
  .hero { min-height: auto; padding: 60px 0 80px; }
  .emc-panel { grid-template-columns: 1fr; }
  .calc__box { grid-template-columns: 1fr; }
  .cta__inner { grid-template-columns: 1fr; gap: 40px; }
  .process__timeline {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .process__timeline::before { display: none; }
  .process__timeline .proc:nth-child(odd)::after { content: '→'; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .topbar__left span { font-size: 12px; }
}

@media (max-width: 720px) {
  .container { padding: 0 16px; }
  .section { padding: 60px 0; }
  .section__head { margin-bottom: 40px; }
  .section__head--center { margin-bottom: 40px; }
  .topbar__right { display: none; }
  .topbar { font-size: 12px; }
  .topbar__left { font-size: 11px; }
  .hero__stats { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-card { padding: 18px 14px; }
  .stat-card__num { font-size: 24px; }
  .stat-card__num::after { font-size: 10px; }
  .hero__title { font-size: 38px; margin: 20px 0 16px; }
  .hero__sub { font-size: 14px; margin-bottom: 24px; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { justify-content: center; }
  .pain__grid { grid-template-columns: 1fr; gap: 16px; }
  .pain-card { padding: 28px 24px; }
  .pain-card__num { font-size: 60px; }
  .pain__cta { flex-direction: column; align-items: stretch; padding: 24px; }
  .pain__cta .btn { justify-content: center; }
  .trust__grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .trust__item::after { display: none; }
  .service__grid { grid-template-columns: 1fr 1fr; }
  .cases__grid { grid-template-columns: 1fr; }
  .cases__filter { padding: 16px; gap: 12px; }
  .filter-group { font-size: 12px; }
  .filter-label { min-width: auto; }
  .diag__steps { grid-template-columns: 1fr; }
  .diag-step:last-child { grid-column: span 1; }
  .diag-demo__body { min-height: 320px; padding: 20px; }
  .diag-demo__pane { inset: 20px; }
  .diag-demo__pane h5 { font-size: 18px; }
  .diag-demo__nav { padding: 12px 16px; }
  .emc__tabs { gap: 0; }
  .emc-tab { padding: 12px 14px; }
  .emc-tab span { font-size: 14px; }
  .emc-tab small { display: none; }
  .emc-panel { padding: 24px 20px; }
  .emc-calc { padding: 20px; }
  .calc__box { padding: 24px 20px; }
  .calc-card { padding: 20px; }
  .calc-card__num { font-size: 24px; }
  .process__timeline { grid-template-columns: 1fr; }
  .std__right { grid-template-columns: 1fr; }
  .cta__form { padding: 24px 20px; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__col--brand { grid-column: span 1; }
  .footer__col--brand p { max-width: none; }
  .footer__cert { gap: 6px; }
  .footer__bottom { flex-direction: column; align-items: center; text-align: center; gap: 16px; }
  .footer__bottom-links { flex-wrap: wrap; justify-content: center; gap: 12px 16px; }
  .footer__qr { max-width: none; }
  .to-top { bottom: 16px; right: 16px; width: 40px; height: 40px; }
  .hero__scroll { display: none; }
}

@media (max-width: 480px) {
  .hero__stats { grid-template-columns: 1fr; }
  .service__grid { grid-template-columns: 1fr; }
  .chips .chip { font-size: 12px; padding: 6px 12px; }
  .case-card__metrics { grid-template-columns: 1fr; }
  .emc-calc__row { font-size: 13px; }
  .emc-calc__row b { font-size: 14px; }
  .diag-step { padding: 12px; gap: 12px; }
  .diag-step__no { width: 36px; height: 36px; font-size: 14px; }
  .diag-step h4 { font-size: 15px; }
  .diag-step p { font-size: 13px; }
}

/* =========================================
   子页面通用组件
   ========================================= */

/* ---------- Page Header (子页头图) ---------- */
.page-header {
  position: relative;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: #fff;
  padding: 80px 0 60px;
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 230, 118, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 230, 118, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
}
.page-header::after {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0, 230, 118, 0.18), transparent 60%);
  border-radius: 50%;
  pointer-events: none;
  filter: blur(40px);
}
.page-header__inner { position: relative; z-index: 1; }
.page-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.page-header h1 em { font-style: normal; }
.page-header p {
  font-size: clamp(15px, 1.3vw, 17px);
  color: rgba(255, 255, 255, 0.78);
  max-width: 640px;
  line-height: 1.7;
}

/* ---------- Breadcrumb (面包屑) ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 24px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb__sep { color: rgba(255, 255, 255, 0.3); }
.breadcrumb__current { color: var(--accent); }

/* ---------- Search Bar ---------- */
.search-bar {
  position: relative;
  max-width: 600px;
  margin: 0 auto 32px;
}
.search-bar input {
  width: 100%;
  padding: 16px 56px 16px 20px;
  background: #fff;
  border: 2px solid var(--line);
  border-radius: var(--r-pill);
  font-size: 15px;
  transition: all 0.25s var(--ease);
  box-shadow: var(--shadow-sm);
}
.search-bar input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.15);
}
.search-bar__btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.search-bar__btn:hover { background: #00C853; transform: translateY(-50%) scale(1.05); }

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.pagination a, .pagination span {
  min-width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  transition: all 0.2s;
}
.pagination a:hover { border-color: var(--accent); color: var(--primary); }
.pagination .is-current {
  background: var(--primary-deep);
  color: #fff;
  border-color: var(--primary-deep);
}
.pagination .is-disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------- Tag Cloud ---------- */
.tagcloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tagcloud a {
  padding: 6px 14px;
  font-size: 13px;
  color: var(--ink-2);
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: var(--r-pill);
  transition: all 0.2s;
}
.tagcloud a:hover { background: var(--accent); color: var(--primary-deep); border-color: var(--accent); }

/* ---------- Article Content (文章正文) ---------- */
.article {
  max-width: 820px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
}
.article h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  color: var(--primary-deep);
  margin: 48px 0 20px;
  padding-left: 16px;
  border-left: 4px solid var(--accent);
  line-height: 1.3;
}
.article h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-deep);
  margin: 36px 0 16px;
}
.article p { margin-bottom: 20px; }
.article ul, .article ol { margin: 16px 0 24px 28px; }
.article li { margin-bottom: 8px; list-style: disc; }
.article ol li { list-style: decimal; }
.article strong { color: var(--primary-deep); font-weight: 600; }
.article em { color: var(--primary); font-style: italic; }
.article blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  background: var(--bg-2);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--r) var(--r) 0;
  color: var(--ink-2);
  font-size: 15px;
}
.article blockquote p { margin: 0; }
.article code {
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 2px 8px;
  background: var(--bg-2);
  color: var(--primary);
  border-radius: 4px;
}
.article table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.article th, .article td {
  padding: 12px 16px;
  border: 1px solid var(--line);
  text-align: left;
}
.article th {
  background: var(--bg-2);
  color: var(--primary-deep);
  font-weight: 700;
}
.article img { border-radius: var(--r); margin: 24px 0; }
.article figure { margin: 24px 0; }
.article figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--ink-3);
  margin-top: 8px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
  color: var(--ink-3);
  font-size: 13px;
  margin-bottom: 40px;
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }

/* ---------- Sidebar ---------- */
.layout-with-side {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.sidebar {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.widget {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}
.widget__title {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
  letter-spacing: 0.5px;
}
.widget__list { display: flex; flex-direction: column; gap: 4px; }
.widget__list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  font-size: 14px;
  color: var(--ink-2);
  border-bottom: 1px dashed var(--line-2);
  transition: all 0.2s;
}
.widget__list a:last-child { border-bottom: 0; }
.widget__list a:hover { color: var(--primary); padding-left: 6px; }
.widget__list a::after { content: '›'; opacity: 0; transition: opacity 0.2s; }
.widget__list a:hover::after { opacity: 1; }
.widget__list a.is-active { color: var(--primary); font-weight: 600; }
.widget__list a.is-active::after { content: '●'; color: var(--accent); opacity: 1; }
.widget__list .count { font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); }

.widget--cta {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: #fff;
  text-align: center;
}
.widget--cta h4 { font-family: var(--font-serif); font-size: 20px; font-weight: 700; margin-bottom: 8px; color: #fff; }
.widget--cta p { color: rgba(255, 255, 255, 0.7); font-size: 13px; margin-bottom: 16px; }
.widget--cta .btn--primary { width: 100%; justify-content: center; }

.widget__check {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
  text-align: left;
}
.widget__check li {
  position: relative;
  padding-left: 24px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.9);
}
.widget__check li::before {
  content: '';
  position: absolute;
  left: 0; top: 6px;
  width: 14px; height: 8px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.widget__quote {
  position: relative;
  padding: 20px;
  background: var(--bg-2);
  border-radius: var(--r);
  border-left: 3px solid var(--accent);
}
.widget__quote p {
  font-size: 14px;
  font-style: italic;
  color: var(--ink-2);
  line-height: 1.7;
  margin-bottom: 12px;
}
.widget__quote cite {
  font-style: normal;
  font-size: 12px;
  color: var(--ink-3);
}

/* Case card link overlay (clickable whole card) */
.case-card__link {
  display: flex;
  flex-direction: column;
  color: inherit;
  text-decoration: none;
  height: 100%;
}
.case-card__link:hover { color: inherit; }

/* Case page toolbar */
.cases-page__toolbar {
  margin-bottom: 32px;
}
.cases-page__stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-2);
  font-size: 13px;
  color: var(--ink-3);
}
.cases-page__stat b {
  color: var(--primary);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  margin: 0 2px;
}
.cases-page__sort { display: inline-flex; align-items: center; gap: 8px; }
.cases-page__sort select {
  padding: 6px 12px;
  font-size: 13px;
  font-family: inherit;
  color: var(--ink-2);
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: all 0.2s;
}
.cases-page__sort select:hover { border-color: var(--accent); }
.cases-page__sort select:focus { outline: none; border-color: var(--accent); }

.btn--block { display: flex; width: 100%; justify-content: center; }

/* News category tabs */
.news-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  padding: 8px;
  background: var(--bg-2);
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  width: fit-content;
}
.news-tab {
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  background: transparent;
  border-radius: var(--r-pill);
  transition: all 0.2s;
  border: 0;
  cursor: pointer;
}
.news-tab:hover { color: var(--primary); }
.news-tab.is-on {
  background: var(--primary-deep);
  color: #fff;
}

/* ---------- News Cards ---------- */
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: all 0.3s var(--ease);
  overflow: hidden;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}
.news-card__cover {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  border-radius: var(--r);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.4);
  font-family: var(--font-mono);
  font-size: 80px;
  font-weight: 700;
}
.news-card__cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(0, 230, 118, 0.3), transparent 60%);
}
.news-card__body { display: flex; flex-direction: column; gap: 12px; }
.news-card__meta { display: flex; gap: 12px; align-items: center; font-size: 12px; color: var(--ink-3); }
.news-card__cat {
  display: inline-block;
  padding: 3px 10px;
  background: var(--bg-2);
  color: var(--primary);
  border-radius: var(--r-pill);
  font-size: 11px;
  font-weight: 600;
}
.news-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-deep);
  line-height: 1.4;
  transition: color 0.2s;
}
.news-card:hover h3 { color: var(--primary); }
.news-card p { font-size: 14px; color: var(--ink-2); line-height: 1.7; }
.news-card__foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}
.news-card__more {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s;
}
.news-card:hover .news-card__more { gap: 8px; }

/* Featured news card (large) */
.news-card--feature {
  grid-template-columns: 1fr;
  grid-template-rows: 240px auto;
}
.news-card--feature .news-card__cover {
  aspect-ratio: auto;
  font-size: 120px;
}

/* News sidebar list */
.news-side-list { display: flex; flex-direction: column; }
.news-side-item {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-2);
}
.news-side-item:last-child { border-bottom: 0; }
.news-side-item__no {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--line);
  line-height: 1;
  min-width: 36px;
  transition: color 0.2s;
}
.news-side-item:hover .news-side-item__no { color: var(--accent); }
.news-side-item h5 { font-size: 14px; line-height: 1.5; color: var(--ink-2); font-weight: 500; transition: color 0.2s; }
.news-side-item:hover h5 { color: var(--primary); }
.news-side-item small { font-size: 11px; color: var(--ink-3); }

/* ---------- Case Detail ---------- */
.case-hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
  align-items: start;
}
.case-hero__visual {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  border-radius: var(--r-lg);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.case-hero__visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(0, 230, 118, 0.3), transparent 60%);
}
.case-hero__visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 30px 30px;
}
.case-hero__visual svg {
  width: 60%;
  height: 60%;
  color: rgba(0, 230, 118, 0.5);
  position: relative;
  z-index: 1;
}

.case-hero__info { padding-top: 8px; }
.case-hero__info .case-tag { font-size: 12px; }
.case-hero__info h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 800;
  color: var(--primary-deep);
  line-height: 1.25;
  margin: 16px 0 20px;
}
.case-hero__intro {
  font-size: 16px;
  color: var(--ink-2);
  line-height: 1.8;
  margin-bottom: 24px;
}
.case-hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 24px;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  margin-bottom: 24px;
}
.case-hero__metrics small { display: block; font-size: 12px; color: var(--ink-3); margin-bottom: 6px; }
.case-hero__metrics b { display: block; font-family: var(--font-mono); font-size: 28px; font-weight: 700; color: var(--primary); line-height: 1; }
.case-hero__metrics b em { font-size: 13px; font-style: normal; color: var(--ink-3); margin-left: 4px; font-weight: 500; }
.case-hero__actions { display: flex; gap: 12px; flex-wrap: wrap; }

.case-section {
  margin-bottom: 64px;
}
.case-section h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--line-2);
}
.case-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}
.case-box {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}
.case-box h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.case-box h4::before {
  content: '';
  width: 4px; height: 16px;
  background: var(--accent);
  border-radius: 2px;
}
.case-box ul { display: flex; flex-direction: column; gap: 10px; }
.case-box li {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 14px;
  color: var(--ink-2);
  border-bottom: 1px dashed var(--line-2);
}
.case-box li:last-child { border-bottom: 0; }
.case-box li b { color: var(--primary); font-weight: 700; font-family: var(--font-mono); }

.case-chart-big {
  padding: 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  text-align: center;
}
.case-chart-big h4 { margin-bottom: 8px; }
.case-chart-big p { font-size: 13px; color: var(--ink-3); margin-bottom: 24px; }
.case-chart-big svg { width: 100%; height: auto; max-height: 280px; }
.case-chart-legend {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-2);
}
.case-chart-legend span { display: inline-flex; align-items: center; gap: 6px; }
.case-chart-legend i {
  width: 20px; height: 2px;
  background: currentColor;
  display: inline-block;
}
.case-chart-legend i.dashed {
  background: repeating-linear-gradient(90deg, currentColor 0 4px, transparent 4px 8px);
  height: 2px;
}

.case-quote-card {
  padding: 40px;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: #fff;
  border-radius: var(--r-lg);
  position: relative;
  overflow: hidden;
}
.case-quote-card::before {
  content: '"';
  position: absolute;
  top: -20px; left: 20px;
  font-family: var(--font-serif);
  font-size: 200px;
  line-height: 1;
  color: rgba(255, 255, 255, 0.06);
}
.case-quote-card p {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.6;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}
.case-quote-card cite {
  font-style: normal;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  position: relative;
  z-index: 1;
}
.case-quote-card cite b { color: #fff; font-weight: 600; }

.case-std-list { display: flex; flex-direction: column; gap: 12px; }
.case-std-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-2);
  border-radius: var(--r);
  border: 1px solid var(--line-2);
}
.case-std-item__no {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 4px 10px;
  background: var(--accent);
  color: var(--primary-deep);
  border-radius: var(--r-sm);
  font-weight: 600;
  flex-shrink: 0;
}
.case-std-item p { font-size: 14px; color: var(--ink-2); }

.case-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 64px 0 0;
}
.case-nav__item {
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  transition: all 0.2s;
}
.case-nav__item:hover { border-color: var(--accent); transform: translateY(-2px); }
.case-nav__item small { display: block; font-size: 12px; color: var(--ink-3); margin-bottom: 8px; }
.case-nav__item b { display: block; font-size: 15px; color: var(--primary-deep); font-weight: 600; }
.case-nav__item--next { text-align: right; }

/* ---------- Contact Page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: all 0.3s var(--ease);
}
.contact-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.contact-card__icon {
  width: 48px; height: 48px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: var(--accent);
  border-radius: var(--r);
}
.contact-card h4 { font-size: 14px; color: var(--ink-3); margin-bottom: 4px; font-weight: 500; }
.contact-card p { font-size: 16px; color: var(--primary-deep); font-weight: 600; }
.contact-card p a { color: inherit; transition: color 0.2s; }
.contact-card p a:hover { color: var(--primary); }

.contact-form {
  padding: 40px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow);
}
.contact-form h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 24px;
}
.contact-form .form-row { margin-bottom: 16px; }
.contact-form label {
  display: block;
  font-size: 13px;
  color: var(--ink-2);
  margin-bottom: 6px;
  font-weight: 500;
}
.contact-form label span { color: var(--warn); }
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-2);
  border: 1.5px solid var(--line);
  border-radius: var(--r-sm);
  font-size: 14px;
  color: var(--ink);
  transition: all 0.2s;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.1);
}
.contact-form textarea { min-height: 120px; resize: vertical; font-family: inherit; }
.contact-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.contact-form__check { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-2); }
.contact-form__check input { width: auto; }
.contact-form__submit { width: 100%; justify-content: center; margin-top: 8px; }

.contact-map {
  margin-top: 40px;
  aspect-ratio: 21/9;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-3);
  font-size: 14px;
  position: relative;
  overflow: hidden;
}
.contact-map::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 230, 118, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 230, 118, 0.1) 1px, transparent 1px);
  background-size: 30px 30px;
}
.contact-map__pin {
  width: 56px; height: 56px;
  border-radius: 50% 50% 50% 0;
  background: var(--accent);
  transform: rotate(-45deg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-deep);
  box-shadow: 0 8px 24px rgba(0, 230, 118, 0.3);
  position: relative;
  z-index: 1;
}
.contact-map__pin svg { transform: rotate(45deg); }

/* ---------- About Page ---------- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 100px;
}
.about-intro h2 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  color: var(--primary-deep);
  line-height: 1.25;
  margin-bottom: 20px;
}
.about-intro h2 em { font-style: normal; }
.about-intro p { font-size: 16px; color: var(--ink-2); line-height: 1.8; margin-bottom: 16px; }
.about-intro__visual {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  border-radius: var(--r-xl);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.2);
  font-family: var(--font-mono);
  font-size: 100px;
  font-weight: 700;
}
.about-intro__visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(0, 230, 118, 0.3), transparent 60%);
}

.timeline-v {
  position: relative;
  padding-left: 60px;
  max-width: 800px;
  margin: 0 auto;
}
.timeline-v::before {
  content: '';
  position: absolute;
  left: 22px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--primary));
}
.tl-item {
  position: relative;
  padding-bottom: 48px;
}
.tl-item::before {
  content: '';
  position: absolute;
  left: -46px; top: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--accent);
}
.tl-year {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.tl-item h4 { font-size: 18px; font-weight: 700; color: var(--primary-deep); margin-bottom: 8px; }
.tl-item p { font-size: 14px; color: var(--ink-2); line-height: 1.7; }

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}
.team-card {
  text-align: center;
  padding: 32px 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: all 0.3s var(--ease);
}
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--accent); }
.team-card__avatar {
  width: 96px; height: 96px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  position: relative;
  overflow: hidden;
}
.team-card__avatar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(0, 230, 118, 0.4), transparent 60%);
}
.team-card h4 { font-size: 18px; font-weight: 700; color: var(--primary-deep); margin-bottom: 4px; }
.team-card__role { font-size: 13px; color: var(--primary); margin-bottom: 12px; font-weight: 500; }
.team-card p { font-size: 13px; color: var(--ink-2); line-height: 1.6; }

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
}
.cert-card {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  text-align: center;
  transition: all 0.3s;
}
.cert-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.cert-card__icon {
  width: 64px; height: 64px;
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-2);
  color: var(--primary);
  border-radius: 16px;
}
.cert-card h5 { font-size: 14px; font-weight: 700; color: var(--primary-deep); margin-bottom: 4px; }
.cert-card p { font-size: 12px; color: var(--ink-3); }

/* ---------- Diagnose Form (multi-step) ---------- */
.diag-form {
  max-width: 760px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}
.diag-form::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent-2));
  z-index: 1;
}
.diag-form__progress {
  display: flex;
  padding: 24px 32px 0;
  gap: 4px;
  position: relative;
  z-index: 1;
}
.diag-form__step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding-bottom: 16px;
  position: relative;
}
.diag-form__step::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  width: 60%;
  height: 3px;
  background: var(--line);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: all 0.3s;
}
.diag-form__step.is-active::after { background: var(--accent); }
.diag-form__step.is-done::after { background: var(--primary); }
.diag-form__step-no {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--bg-2);
  border: 2px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-3);
  transition: all 0.3s;
}
.diag-form__step.is-active .diag-form__step-no {
  background: var(--accent);
  color: var(--primary-deep);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.15);
}
.diag-form__step.is-done .diag-form__step-no {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.diag-form__step-label { font-size: 11px; color: var(--ink-3); text-align: center; }
.diag-form__step.is-active .diag-form__step-label { color: var(--primary); font-weight: 600; }

.diag-form__body {
  padding: 32px;
  min-height: 400px;
  position: relative;
}
.diag-form__pane {
  display: none;
  animation: fadeIn 0.4s var(--ease);
}
.diag-form__pane.is-on { display: block; }
.diag-form__pane h2 {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 8px;
}
.diag-form__pane > p { color: var(--ink-2); margin-bottom: 24px; }

.diag-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.diag-option {
  position: relative;
  cursor: pointer;
}
.diag-option input { position: absolute; opacity: 0; pointer-events: none; }
.diag-option__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 12px;
  background: #fff;
  border: 2px solid var(--line);
  border-radius: var(--r);
  transition: all 0.2s;
  text-align: center;
}
.diag-option:hover .diag-option__card { border-color: var(--accent); transform: translateY(-2px); }
.diag-option input:checked + .diag-option__card {
  background: var(--bg-2);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.1);
}
.diag-option__icon {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.diag-option__title { font-size: 14px; font-weight: 600; color: var(--primary-deep); }
.diag-option__sub { font-size: 12px; color: var(--ink-3); }

.diag-form__nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 32px;
  background: var(--bg-2);
  border-top: 1px solid var(--line-2);
}
.diag-form__nav .btn--primary:disabled { opacity: 0.4; cursor: not-allowed; }

.diag-result {
  text-align: center;
  padding: 40px 20px;
}
.diag-result__hero {
  width: 80px; height: 80px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 36px;
  animation: pulse 2s infinite;
}
.diag-result h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--primary-deep);
  margin-bottom: 8px;
}
.diag-result p { color: var(--ink-2); margin-bottom: 24px; }
.diag-result__num {
  font-family: var(--font-mono);
  font-size: 80px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 8px;
}
.diag-result__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin: 32px 0;
  text-align: left;
}
.diag-result__card {
  padding: 16px;
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: var(--r);
}
.diag-result__card h4 { font-size: 14px; color: var(--primary-deep); margin-bottom: 8px; font-weight: 600; }
.diag-result__card b { font-family: var(--font-mono); font-size: 22px; color: var(--primary); font-weight: 700; }
.diag-result__card p { font-size: 12px; color: var(--ink-3); margin: 0; }
.diag-result__actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- 子页响应式 ---------- */
@media (max-width: 1100px) {
  .case-hero { grid-template-columns: 1fr; gap: 32px; }
  .case-grid-2 { grid-template-columns: 1fr; }
  .layout-with-side { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 720px) {
  .page-header { padding: 60px 0 40px; }
  .case-hero__metrics { grid-template-columns: 1fr; gap: 12px; }
  .case-hero__metrics b { font-size: 24px; }
  .case-quote-card { padding: 28px 20px; }
  .case-quote-card p { font-size: 18px; }
  .case-nav { grid-template-columns: 1fr; }
  .case-nav__item--next { text-align: left; }
  .news-card { grid-template-columns: 1fr; }
  .news-card__cover { aspect-ratio: 16/9; }
  .news-card--feature .news-card__cover { font-size: 80px; }
  .contact-form { padding: 24px 20px; }
  .contact-form__row { grid-template-columns: 1fr; }
  .about-intro__visual { font-size: 60px; }
  .diag-form__progress { padding: 16px 16px 0; }
  .diag-form__body { padding: 20px; min-height: 320px; }
  .diag-form__pane h2 { font-size: 20px; }
  .diag-form__nav { padding: 16px 20px; flex-wrap: wrap; gap: 12px; }
  .diag-result { padding: 24px 12px; }
  .diag-result__num { font-size: 56px; }
}

/* =========================================
   栏目页优化增强
   ========================================= */

/* ---------- Page Header: 视觉层次强化 ---------- */
.page-header::before {
  /* 重新声明以增强网格可见度（动效淡入） */
  animation: gridFade 1.2s var(--ease) both;
}
@keyframes gridFade {
  from { opacity: 0; }
  to { opacity: 1; }
}
.page-header__inner {
  /* 添加大字号背景水印 */
  position: relative;
}
.page-header__inner::after {
  content: attr(data-watermark);
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-serif);
  font-size: clamp(120px, 18vw, 240px);
  font-weight: 900;
  line-height: 0.9;
  color: rgba(255, 255, 255, 0.04);
  letter-spacing: -8px;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}
.page-header h1 {
  position: relative;
  z-index: 1;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}
.page-header h1 em {
  position: relative;
  display: inline-block;
}
.page-header h1 em::before {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: 4px;
  height: 8px;
  background: var(--accent);
  z-index: -1;
  opacity: 0.6;
  border-radius: 4px;
  transform: skewX(-8deg);
  transition: all 0.4s var(--ease);
}
.page-header h1:hover em::before {
  height: 14px;
  opacity: 0.4;
}
.page-header p { position: relative; z-index: 1; }
.page-header__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  position: relative;
  z-index: 1;
}
.page-header__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}
.page-header__meta-item b {
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 700;
}
.page-header__quick {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* 装饰用装饰条 */
.page-header__divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}
.page-header__divider::before,
.page-header__divider::after {
  content: '';
  flex: 0 0 32px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
}
.page-header__divider::after {
  background: linear-gradient(90deg, transparent, var(--accent));
}

/* ---------- Breadcrumb 增强 ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: rgba(255, 255, 255, 0.55);
}
.breadcrumb a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}
.breadcrumb a::before {
  content: '‹';
  opacity: 0;
  transform: translateX(4px);
  transition: all 0.2s;
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb a:hover::before {
  opacity: 1;
  transform: translateX(0);
}
.breadcrumb__sep {
  margin: 0 4px;
  color: rgba(255, 255, 255, 0.3);
}
.breadcrumb__current {
  color: var(--accent);
  font-weight: 600;
}

/* ---------- Layout with side: 粘性侧边栏 ---------- */
.layout-with-side {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.layout-main { min-width: 0; }
.sidebar {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line-2) transparent;
  padding-right: 4px;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 4px; }

/* ---------- Widget 卡片视觉强化 ---------- */
.widget {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
  transition: all 0.3s var(--ease);
  overflow: hidden;
}
.widget::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary-deep));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.widget:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -12px rgba(10, 77, 60, 0.18);
}
.widget:hover::before { transform: scaleX(1); }
.widget__title {
  position: relative;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 8px;
}
.widget__title::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 16px;
  background: var(--accent);
  border-radius: 2px;
}

/* widget list 项 */
.widget__list a {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--ink-2);
  border-bottom: 1px dashed var(--line-2) !important;
  border-radius: var(--r-sm);
  transition: all 0.2s;
  gap: 8px;
}
.widget__list a:hover {
  background: var(--bg-2);
  color: var(--primary) !important;
  padding-left: 16px !important;
  transform: none;
}
.widget__list a span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  background: var(--bg-2);
  padding: 2px 8px;
  border-radius: var(--r-pill);
  transition: all 0.2s;
}
.widget__list a:hover span {
  background: var(--accent);
  color: var(--primary-deep);
  font-weight: 600;
}

/* tag cloud */
.tagcloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tagcloud a {
  display: inline-flex;
  padding: 6px 12px;
  font-size: 12px;
  color: var(--ink-2);
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: var(--r-pill);
  transition: all 0.2s;
  text-decoration: none;
  cursor: pointer;
}
.tagcloud a:hover {
  color: var(--primary-deep);
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-1px);
}

/* CTA widget */
.widget--cta {
  background:
    radial-gradient(circle at 100% 0%, rgba(0, 230, 118, 0.15), transparent 50%),
    linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: #fff;
  position: relative;
  overflow: hidden;
}
.widget--cta::after {
  content: '';
  position: absolute;
  bottom: -40px; right: -40px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(0, 230, 118, 0.2), transparent 60%);
  border-radius: 50%;
  pointer-events: none;
}
.widget--cta::before { display: none; } /* 覆盖普通 widget 的顶部条 */
.widget--cta h4 { color: #fff; }
.widget--cta h4::before { background: var(--accent); }

/* ---------- Article 排版优化 ---------- */
.article {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  max-width: 760px;
  margin: 0 auto;
}
.article > * + * { margin-top: 1.4em; }
.article h2 {
  position: relative;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 800;
  color: var(--primary-deep);
  padding-top: 16px;
  margin-top: 56px !important;
  line-height: 1.3;
}
.article h2::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 22px;
  background: var(--accent);
  vertical-align: -4px;
  margin-right: 12px;
  border-radius: 2px;
}
.article h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-top: 36px !important;
  padding-left: 12px;
  border-left: 3px solid var(--accent);
}
.article p {
  color: var(--ink);
  margin: 0;
}
.article ul, .article ol {
  margin: 0;
  padding-left: 0;
  list-style: none;
}
.article li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 10px;
  line-height: 1.75;
}
.article ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 13px;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.18);
}
.article ol {
  counter-reset: olc;
}
.article ol li {
  counter-increment: olc;
}
.article ol li::before {
  content: counter(olc);
  position: absolute;
  left: 0; top: 2px;
  width: 22px; height: 22px;
  background: var(--primary-deep);
  color: var(--accent);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
}
.article blockquote {
  position: relative;
  margin: 40px 0;
  padding: 24px 28px 24px 48px;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  border-radius: var(--r-lg);
  border-left: 4px solid var(--accent);
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.7;
  color: var(--ink-2);
  font-style: italic;
}
.article blockquote::before {
  content: '"';
  position: absolute;
  top: -10px; left: 12px;
  font-family: var(--font-serif);
  font-size: 80px;
  line-height: 1;
  color: var(--accent);
  opacity: 0.4;
  font-weight: 900;
}
.article strong { color: var(--primary-deep); font-weight: 700; }
.article em {
  color: var(--primary);
  font-style: normal;
  font-weight: 600;
  background: linear-gradient(180deg, transparent 60%, rgba(0, 230, 118, 0.25) 60%);
  padding: 0 2px;
}
.article table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 24px 0;
  border-radius: var(--r);
  overflow: hidden;
  border: 1px solid var(--line);
  font-size: 14px;
}
.article th, .article td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line-2);
}
.article tbody tr:last-child td { border-bottom: 0; }
.article tbody tr:hover { background: var(--bg-2); }
.article th {
  background: var(--primary-deep);
  color: #fff;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.3px;
}
.article code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 2px 6px;
  background: var(--bg-3);
  border-radius: 4px;
  color: var(--primary);
}

/* 文章目录 - 顶部 */
.article-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 20px;
  background: var(--bg-2);
  border: 1px dashed var(--line-2);
  border-radius: var(--r);
  margin-bottom: 32px;
  font-size: 13px;
}
.article-toc-label {
  color: var(--ink-3);
  font-weight: 600;
  margin-right: 8px;
}
.article-toc a {
  color: var(--ink-2);
  text-decoration: none;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  transition: all 0.2s;
}
.article-toc a:hover {
  color: var(--primary-deep);
  background: var(--accent);
}

/* 文章 meta 行 */
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 20px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-3);
  position: relative;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta svg { color: var(--accent); }

/* ---------- Case Section 强化 ---------- */
.case-section {
  margin: 64px 0;
  position: relative;
}
.case-section::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 16px;
}
.case-section h2 {
  position: relative;
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  line-height: 1.3;
}
.case-section h2::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line-2), transparent);
}

/* 案例 box 微调 */
.case-box {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px 24px;
  transition: all 0.3s var(--ease);
  overflow: hidden;
}
.case-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: linear-gradient(180deg, var(--accent), var(--primary-deep));
  opacity: 0.5;
  transition: width 0.3s;
}
.case-box:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 16px 40px -16px rgba(10, 77, 60, 0.15);
}
.case-box:hover::before { width: 6px; opacity: 1; }
.case-box h4 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-2);
}
.case-box h4::before {
  content: '';
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
  transform: rotate(45deg);
  flex-shrink: 0;
}

/* 案例 nav 强化 */
.case-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.case-nav__item {
  display: block;
  padding: 20px 24px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  text-decoration: none;
  color: inherit;
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.case-nav__item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 0;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0.1;
  transition: width 0.3s;
}
.case-nav__item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -12px rgba(10, 77, 60, 0.15);
}
.case-nav__item:hover::before { width: 100%; }
.case-nav__item small {
  display: block;
  font-size: 12px;
  color: var(--ink-3);
  margin-bottom: 6px;
  font-family: var(--font-mono);
  letter-spacing: 0.3px;
}
.case-nav__item b {
  display: block;
  font-size: 15px;
  color: var(--primary-deep);
  font-weight: 600;
  line-height: 1.4;
}
.case-nav__item--next { text-align: right; }
.case-nav__item--next::after {
  content: '→';
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--accent);
  opacity: 0;
  transition: all 0.3s;
}
.case-nav__item:first-child::before {
  content: '←';
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--accent);
  opacity: 0;
  transition: all 0.3s;
  background: none;
  width: auto;
  height: auto;
}
.case-nav__item:hover::after, .case-nav__item:hover::before {
  opacity: 1;
  background: none;
  width: auto;
  height: auto;
}

/* ---------- News list / card 强化 ---------- */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.news-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  transition: all 0.3s var(--ease);
  overflow: hidden;
}
.news-card::after {
  content: '↗';
  position: absolute;
  top: 24px;
  right: 24px;
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-2);
  color: var(--ink-3);
  border-radius: 50%;
  font-size: 16px;
  transition: all 0.3s var(--ease);
}
.news-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -16px rgba(10, 77, 60, 0.15);
}
.news-card:hover::after {
  background: var(--accent);
  color: var(--primary-deep);
  transform: rotate(45deg) scale(1.1);
}
.news-card__cover {
  position: relative;
  aspect-ratio: 1/1;
  border-radius: var(--r);
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 900;
  overflow: hidden;
}
.news-card__cover::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
}
.news-card__cover::after {
  content: '';
  position: absolute;
  width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 30%, rgba(0, 230, 118, 0.3), transparent 40%);
  top: -50%; left: -50%;
  pointer-events: none;
}
.news-card--feature .news-card__cover {
  aspect-ratio: 16/9;
  font-size: 100px;
}
.news-card__cat {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--primary-deep);
  background: rgba(0, 230, 118, 0.18);
  border-radius: var(--r-pill);
  letter-spacing: 0.3px;
  border: 1px solid rgba(0, 230, 118, 0.3);
}
.news-card h3 {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--primary-deep);
  line-height: 1.4;
  margin: 4px 0 6px;
  transition: color 0.2s;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card:hover h3 { color: var(--primary); }
.news-card p {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card__foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-2);
}
.news-card__more {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s;
}
.news-card:hover .news-card__more { gap: 8px; }

/* news-side 列表 */
.news-side-list { display: flex; flex-direction: column; }
.news-side-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line-2);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
}
.news-side-item:last-child { border-bottom: 0; }
.news-side-item__no {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 900;
  line-height: 1;
  color: var(--line-2);
  flex-shrink: 0;
  transition: color 0.2s;
  font-feature-settings: 'tnum';
}
.news-side-item:hover .news-side-item__no { color: var(--accent); }
.news-side-item h5 {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-2);
  font-weight: 500;
  transition: color 0.2s;
  margin: 0 0 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-side-item:hover h5 { color: var(--primary); }
.news-side-item small {
  font-size: 11px;
  color: var(--ink-3);
  font-family: var(--font-mono);
}

/* ---------- Filter 优化 ---------- */
.cases__filter {
  padding: 20px 24px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.filter-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.filter-label {
  font-size: 12px;
  color: var(--ink-3);
  font-weight: 600;
  margin-right: 8px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.filter {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: all 0.2s;
}
.filter:hover {
  color: var(--primary-deep);
  border-color: var(--accent);
  transform: translateY(-1px);
}
.filter.is-on {
  background: var(--primary-deep);
  color: #fff;
  border-color: var(--primary-deep);
  box-shadow: 0 4px 12px -4px rgba(10, 77, 60, 0.4);
}

/* ---------- Cases grid 卡片强化 ---------- */
.cases__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.case-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
  transition: all 0.4s var(--ease);
  overflow: hidden;
}
.case-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  transition: width 0.4s var(--ease);
}
.case-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -20px rgba(10, 77, 60, 0.2);
}
.case-card:hover::before { width: 100%; }
.case-card__top {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.case-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-3);
  background: var(--bg-2);
  border-radius: var(--r-pill);
  border: 1px solid var(--line-2);
  letter-spacing: 0.3px;
}
.case-tag--green {
  color: var(--primary-deep);
  background: rgba(0, 230, 118, 0.15);
  border-color: rgba(0, 230, 118, 0.3);
}
.case-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-deep);
  line-height: 1.3;
  margin-bottom: 8px;
}
.case-card p {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.6;
  margin-bottom: 16px;
}
.case-card__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
  margin-bottom: 16px;
}
.case-card__metrics > div { text-align: center; }
.case-card__metrics small {
  display: block;
  font-size: 11px;
  color: var(--ink-3);
  margin-bottom: 4px;
}
.case-card__metrics b {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-deep);
  line-height: 1;
}
.case-card__metrics b em {
  font-size: 11px;
  font-style: normal;
  color: var(--ink-3);
  font-weight: 500;
  margin-left: 2px;
}
.case-card__chart {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 11px;
  color: var(--ink-3);
}
.case-card__chart svg {
  flex: 1;
  height: 36px;
  color: var(--accent);
}
.case-card__chart[data-chart="down"] svg { color: var(--ink-2); }
.case-card__chart[data-chart="up"] svg { color: var(--accent); }

/* ---------- Pagination 强化 ---------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.pagination a, .pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}
.pagination a:hover {
  color: var(--primary-deep);
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px -4px rgba(10, 77, 60, 0.15);
}
.pagination .is-current {
  color: #fff;
  background: var(--primary-deep);
  border-color: var(--primary-deep);
  font-weight: 600;
  box-shadow: 0 4px 12px -4px rgba(10, 77, 60, 0.3);
}
.pagination .is-disabled {
  color: var(--ink-3);
  background: transparent;
  cursor: not-allowed;
  border-color: var(--line-2);
}

/* ---------- Cases__more 强化 ---------- */
.cases__more {
  text-align: center;
  padding: 48px 24px;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  border: 1px dashed var(--line-2);
  border-radius: var(--r-lg);
  position: relative;
  overflow: hidden;
}
.cases__more::before, .cases__more::after {
  content: '';
  position: absolute;
  width: 100px; height: 100px;
  background: radial-gradient(circle, rgba(0, 230, 118, 0.15), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.cases__more::before { top: -20px; left: -20px; }
.cases__more::after { bottom: -20px; right: -20px; }
.cases__more h3 { position: relative; z-index: 1; }
.cases__more p { position: relative; z-index: 1; margin-bottom: 20px; }
.cases__more .btn { position: relative; z-index: 1; }

/* ---------- Diagnose Form 强化 ---------- */
.diag-form {
  background: #fff;
  border-radius: var(--r-lg);
  box-shadow: 0 24px 60px -24px rgba(10, 77, 60, 0.2);
  overflow: hidden;
  border: 1px solid var(--line);
}
.diag-form__progress {
  display: flex;
  align-items: stretch;
  background: var(--bg-2);
  padding: 24px 32px 0;
  position: relative;
}
.diag-form__progress::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 32px; right: 32px;
  height: 2px;
  background: var(--line);
  z-index: 0;
  transform: translateY(-50%);
}
.diag-form__step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 0 0 24px;
  position: relative;
  z-index: 1;
  text-align: center;
}
.diag-form__step-no {
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border: 2px solid var(--line);
  color: var(--ink-3);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  transition: all 0.3s var(--ease);
}
.diag-form__step.is-active .diag-form__step-no {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--primary-deep);
  box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.2);
  transform: scale(1.1);
}
.diag-form__step.is-done .diag-form__step-no {
  background: var(--primary-deep);
  border-color: var(--primary-deep);
  color: var(--accent);
}
.diag-form__step-label {
  font-size: 12px;
  color: var(--ink-3);
  font-weight: 500;
  transition: color 0.2s;
}
.diag-form__step.is-active .diag-form__step-label { color: var(--primary-deep); font-weight: 600; }
.diag-form__step.is-done .diag-form__step-label { color: var(--primary); }
.diag-form__body { padding: 40px 48px; min-height: 480px; }
.diag-form__pane { display: none; }
.diag-form__pane.is-on { display: block; animation: paneFade 0.4s var(--ease); }
@keyframes paneFade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.diag-form__pane h2 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 8px;
}
.diag-form__pane p { color: var(--ink-2); margin-bottom: 24px; }
.diag-form__nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 48px;
  background: var(--bg-2);
  border-top: 1px solid var(--line);
}
.diag-option__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  padding: 24px 16px;
  background: #fff;
  border: 2px solid var(--line);
  border-radius: var(--r);
  height: 100%;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.diag-option__card::after {
  content: '✓';
  position: absolute;
  top: 8px; right: 8px;
  width: 24px; height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--primary-deep);
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  opacity: 0;
  transform: scale(0);
  transition: all 0.3s var(--ease);
}
.diag-option input:checked + .diag-option__card {
  border-color: var(--accent);
  background: rgba(0, 230, 118, 0.06);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -8px rgba(0, 230, 118, 0.3);
}
.diag-option input:checked + .diag-option__card::after {
  opacity: 1;
  transform: scale(1);
}
.diag-option__icon {
  color: var(--primary);
  margin-bottom: 4px;
}
.diag-option__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary-deep);
  line-height: 1.3;
}
.diag-option__sub {
  font-size: 12px;
  color: var(--ink-3);
  line-height: 1.4;
}

/* ---------- 抖动反馈 ---------- */
@keyframes shakeX {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}
.diag-option.is-shake,
.diag-form__body input.is-shake {
  animation: shakeX 0.5s var(--ease);
}
.diag-form__body input.is-shake {
  border-color: #ef4444 !important;
  background: #fef2f2;
}
.diag-form__body input {
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.diag-form__body input:focus {
  outline: none;
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.15);
}

/* ---------- Page Header 增强：diagnose 变体 ---------- */
.page-header__divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}
.page-header__divider::before,
.page-header__divider::after {
  content: '';
  flex: 0 0 32px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
}
.page-header__divider::after {
  background: linear-gradient(90deg, transparent, var(--accent));
}
.btn--ghost-light {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
}
.btn--ghost-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- 价值主张（3 卡片） ---------- */
.diag-value {
  background: var(--bg);
  position: relative;
}
.diag-value::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 77, 60, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 77, 60, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
}
.diag-value__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}
.diag-value__card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px 28px 28px;
  transition: all 0.4s var(--ease);
  overflow: hidden;
}
.diag-value__card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary-deep));
  transition: width 0.4s var(--ease);
}
.diag-value__card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -20px rgba(10, 77, 60, 0.25);
  border-color: var(--accent);
}
.diag-value__card:hover::before { width: 100%; }
.diag-value__card.is-feature {
  background: linear-gradient(160deg, #0A4D3C 0%, #06291F 100%);
  color: #fff;
  border-color: transparent;
}
.diag-value__card.is-feature::before {
  width: 100%;
  background: linear-gradient(90deg, var(--accent), #FFB627, var(--accent));
  height: 3px;
}
.diag-value__badge {
  position: absolute;
  top: 16px; right: 16px;
  background: var(--accent);
  color: var(--primary-deep);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  letter-spacing: 1px;
}
.diag-value__icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c1, var(--accent)), var(--c2, var(--primary-deep)));
  color: #fff;
  margin-bottom: 20px;
  box-shadow: 0 8px 16px -4px rgba(0, 230, 118, 0.3);
  position: relative;
}
.diag-value__icon::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--c1, var(--accent)), var(--c2, var(--primary-deep)));
  opacity: 0.2;
  filter: blur(8px);
  z-index: -1;
}
.diag-value__card h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--primary-deep);
  line-height: 1.3;
}
.diag-value__card.is-feature h3 { color: #fff; }
.diag-value__card h3 em {
  font-style: normal;
  color: var(--accent);
  position: relative;
  display: inline-block;
}
.diag-value__card h3 em::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: 0;
  height: 8px;
  background: rgba(0, 230, 118, 0.3);
  z-index: -1;
  border-radius: 2px;
}
.diag-value__card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
  margin-bottom: 20px;
}
.diag-value__card.is-feature p { color: rgba(255, 255, 255, 0.75); }
.diag-value__foot {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}
.diag-value__card.is-feature .diag-value__foot { border-top-color: rgba(255, 255, 255, 0.15); }
.diag-value__chip {
  display: inline-block;
  font-size: 12px;
  padding: 4px 10px;
  background: var(--bg-2);
  color: var(--primary);
  border-radius: var(--r-pill);
  font-weight: 500;
  border: 1px solid var(--line);
}
.diag-value__card.is-feature .diag-value__chip {
  background: rgba(0, 230, 118, 0.15);
  color: var(--accent);
  border-color: rgba(0, 230, 118, 0.25);
}

/* ---------- 诊断流程时间线 ---------- */
.diag-process {
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
  position: relative;
  overflow: hidden;
}
.diag-process::before {
  content: '';
  position: absolute;
  top: 0; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0, 230, 118, 0.08), transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
}
.diag-process__track {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}
.diag-process__track::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg,
    var(--accent) 0%,
    var(--accent) 25%,
    var(--line) 25%,
    var(--line) 100%);
  z-index: 0;
}
.diag-process__step {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 8px;
  transition: transform 0.3s var(--ease);
}
.diag-process__step:hover { transform: translateY(-4px); }
.diag-process__no {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 800;
  color: var(--ink-3);
  margin: 0 auto 20px;
  position: relative;
  transition: all 0.4s var(--ease);
  box-shadow: 0 4px 12px -4px rgba(10, 77, 60, 0.1);
}
.diag-process__step:hover .diag-process__no {
  border-color: var(--accent);
  color: var(--primary-deep);
  box-shadow: 0 8px 20px -4px rgba(0, 230, 118, 0.3);
}
.diag-process__body {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 20px 16px;
  transition: all 0.3s var(--ease);
}
.diag-process__step:hover .diag-process__body {
  border-color: var(--accent);
  box-shadow: 0 12px 24px -8px rgba(10, 77, 60, 0.15);
}
.diag-process__body h4 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 6px;
}
.diag-process__body p {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.5;
  margin-bottom: 12px;
}
.diag-process__time {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  padding: 3px 10px;
  background: rgba(0, 230, 118, 0.1);
  border-radius: var(--r-pill);
  border: 1px solid rgba(0, 230, 118, 0.25);
}

/* ---------- 表单区：双栏布局 ---------- */
.diag-form-section { background: var(--bg); }
.diag-form-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: start;
}
.diag-side { position: relative; }
.diag-side__sticky {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.diag-side__progress,
.diag-side__benefit,
.diag-side__expert {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
  box-shadow: 0 12px 32px -16px rgba(10, 77, 60, 0.15);
  position: relative;
  overflow: hidden;
}
.diag-side__progress::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary-deep));
}
.diag-side__progress-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
}
.diag-side__progress-label {
  font-size: 13px;
  color: var(--ink-2);
  font-weight: 500;
}
.diag-side__progress-pct {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 800;
  color: var(--primary-deep);
}
.diag-side__progress-bar {
  height: 6px;
  background: var(--line);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 20px;
}
.diag-side__progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  border-radius: 3px;
  transition: width 0.5s var(--ease);
}
.diag-side__progress-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.diag-side__progress-step {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--ink-3);
  transition: color 0.2s;
}
.diag-side__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--line);
  flex-shrink: 0;
  transition: all 0.3s var(--ease);
  position: relative;
}
.diag-side__progress-step.is-active {
  color: var(--primary-deep);
  font-weight: 600;
}
.diag-side__progress-step.is-active .diag-side__dot {
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.2);
  animation: dotPulse 1.6s infinite;
}
@keyframes dotPulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.2); }
  50% { box-shadow: 0 0 0 8px rgba(0, 230, 118, 0.05); }
}
.diag-side__progress-step.is-done {
  color: var(--primary);
}
.diag-side__progress-step.is-done .diag-side__dot {
  background: var(--primary-deep);
}
.diag-side__progress-step.is-done .diag-side__dot::after {
  content: '✓';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 8px;
  color: var(--accent);
  font-weight: 700;
}
.diag-side__benefit h4 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.diag-side__benefit h4::before {
  content: '🎁';
  font-size: 18px;
}
.diag-side__benefit ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.diag-side__benefit li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.4;
}
.diag-side__benefit li svg {
  flex-shrink: 0;
  color: var(--accent);
}
.diag-side__benefit li b { color: var(--primary-deep); font-weight: 600; }
.diag-side__expert-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.diag-side__expert-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--primary-deep));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.diag-side__expert-head b {
  display: block;
  font-size: 14px;
  color: var(--primary-deep);
  margin-bottom: 2px;
}
.diag-side__expert-head span {
  font-size: 12px;
  color: var(--ink-3);
}
.diag-side__expert p {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.6;
  font-style: italic;
  padding: 12px;
  background: var(--bg-2);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  margin-bottom: 12px;
}
.diag-side__expert-tel {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  padding: 8px 12px;
  background: var(--bg-2);
  border-radius: var(--r);
  width: 100%;
  justify-content: center;
  transition: all 0.2s;
}
.diag-side__expert-tel:hover {
  background: var(--primary-deep);
  color: var(--accent);
}

/* ---------- FAQ 区 ---------- */
.diag-faq {
  background: var(--bg-2);
}
.diag-faq__layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 60px;
  align-items: start;
}
.diag-faq__head { position: sticky; top: 100px; }
.diag-faq__list { display: flex; flex-direction: column; gap: 12px; }
.diag-faq .faq-item { transition: all 0.3s var(--ease); }
.diag-faq .faq-item__q {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-deep);
  flex: 1;
  padding-right: 12px;
}

/* ---------- 底部 CTA ---------- */
.diag-cta {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary-deep), #021A11);
  position: relative;
  overflow: hidden;
}
.diag-cta::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0, 230, 118, 0.2), transparent 60%);
  border-radius: 50%;
  filter: blur(60px);
}
.diag-cta::after {
  content: '';
  position: absolute;
  bottom: -200px; left: -200px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(255, 182, 39, 0.12), transparent 60%);
  border-radius: 50%;
  filter: blur(60px);
}
.diag-cta__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  color: #fff;
}
.diag-cta__bg {
  position: absolute;
  inset: -40px;
  z-index: -1;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-xl);
  overflow: hidden;
}
.diag-cta__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 70%);
}
.diag-cta__content h2 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 900;
  line-height: 1.2;
  margin: 16px 0 16px;
}
.diag-cta__content h2 em {
  font-style: normal;
  color: var(--accent);
  position: relative;
  display: inline-block;
}
.diag-cta__content h2 em::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: 4px;
  height: 10px;
  background: rgba(0, 230, 118, 0.3);
  z-index: -1;
  border-radius: 2px;
}
.diag-cta__content p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}
.diag-cta__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.diag-cta__signs {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}
.diag-cta__signs span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.diag-cta__signs svg { color: var(--accent); }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .diag-value__grid { grid-template-columns: 1fr; gap: 16px; }
  .diag-form-layout { grid-template-columns: 1fr; }
  .diag-side { order: -1; }
  .diag-side__sticky { position: static; }
  .diag-faq__layout { grid-template-columns: 1fr; gap: 32px; }
  .diag-faq__head { position: static; }
  .diag-process__track { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
  .diag-process__track::before { display: none; }
}
@media (max-width: 720px) {
  .diag-value__card { padding: 28px 20px; }
  .diag-value__card h3 { font-size: 20px; }
  .diag-process__track { grid-template-columns: 1fr; }
  .diag-form__body { padding: 24px 20px; }
  .diag-form__nav { padding: 16px 20px; }
  .diag-side__sticky { gap: 16px; }
  .diag-side__progress, .diag-side__benefit, .diag-side__expert { padding: 20px; }
  .diag-cta { padding: 60px 0; }
  .diag-cta__actions { flex-direction: column; }
  .diag-cta__actions .btn { width: 100%; }
}

/* ---------- Contact Form 强化 ---------- */
.contact-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px;
  box-shadow: 0 24px 60px -24px rgba(10, 77, 60, 0.15);
  position: relative;
  overflow: hidden;
}
.contact-form::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--primary-deep), var(--accent));
}
.contact-form h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.contact-form h3::before {
  content: '';
  width: 4px; height: 22px;
  background: var(--accent);
  border-radius: 2px;
}
.form-row label {
  display: block;
  font-size: 13px;
  color: var(--ink-2);
  margin-bottom: 6px;
  font-weight: 500;
}
.form-row label span { color: var(--warn); margin-left: 2px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--line);
  border-radius: var(--r-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  transition: all 0.2s;
  outline: none;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.15);
}
.form-row textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.6;
}
.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.contact-form__submit {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
}
.contact-form__check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12px;
  color: var(--ink-2);
  cursor: pointer;
  line-height: 1.6;
}
.contact-form__check input { margin-top: 2px; }
.contact-form input::placeholder, .contact-form textarea::placeholder {
  color: var(--ink-3);
  font-weight: 400;
}

/* ---------- Contact cards 强化 ---------- */
.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  transition: all 0.2s;
}
.contact-card:hover {
  border-color: var(--accent);
  transform: translateX(4px);
  box-shadow: -4px 4px 16px -8px rgba(10, 77, 60, 0.15);
}
.contact-card__icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: var(--accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s var(--ease);
}
.contact-card:hover .contact-card__icon { transform: rotate(-8deg) scale(1.05); }
.contact-card h4 {
  font-size: 12px;
  color: var(--ink-3);
  font-weight: 500;
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.contact-card p { font-size: 15px; color: var(--primary-deep); font-weight: 600; }
.contact-card p a { color: inherit; }
.contact-card p a:hover { color: var(--accent); }

/* ---------- 滚动揭示动画（CSS fallback） ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* 焦点可访问性优化 */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.nav__link:focus-visible, .breadcrumb a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 2px;
}

/* 滚动条样式统一 */
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* 响应式：移动端调整 */
@media (max-width: 960px) {
  .layout-with-side { grid-template-columns: 1fr; gap: 32px; }
  .sidebar { position: static; max-height: none; }
  .article { font-size: 15px; }
  .article h2 { font-size: 24px; margin-top: 48px !important; }
  .article h3 { font-size: 18px; }
  .article blockquote { padding: 20px 24px 20px 44px; font-size: 16px; }
  .news-card { grid-template-columns: 120px 1fr; gap: 16px; padding: 18px; }
  .news-card__cover { font-size: 32px; }
  .news-card h3 { font-size: 16px; }
  .news-card p { display: none; }
  .case-card { padding: 20px; }
  .case-card__metrics { gap: 8px; }
  .case-card__metrics b { font-size: 16px; }
  .contact-form { padding: 24px; }
  .contact-form__row { grid-template-columns: 1fr; }
  .diag-form__body { padding: 24px; }
  .diag-form__nav { padding: 16px 24px; }
  .diag-form__progress { padding: 16px 16px 0; }
  .diag-form__step-label { display: none; }
  .page-header__inner::after { display: none; }
  .page-header h1 { font-size: 32px; }
}
@media (max-width: 480px) {
  .cases__grid { grid-template-columns: 1fr; }
  .cases-page__stat { flex-direction: column; align-items: flex-start; }
  .case-section h2 { font-size: 22px; }
  .case-grid-2 { grid-template-columns: 1fr; }
  .filter-group { gap: 6px; }
  .filter { padding: 4px 10px; font-size: 12px; }
  .diag-form__progress::after { left: 16px; right: 16px; }
  .diag-form__step-no { width: 30px; height: 30px; font-size: 12px; }
}