/* ========== Reset & Base ========== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root {
  --primary: #1a6ef5;
  --primary-dark: #0d47a1;
  --primary-light: #4285f4;
  --primary-lighter: #6ea8ff;
  --primary-bg: #e8f0fe;
  --accent: #00b0ff;
  --white: #ffffff;
  --bg: #f8fafc;
  --bg-section: #f1f5f9;
  --bg-dark: #0a1628;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --border-light: rgba(226,232,240,0.6);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
  --max-width: 1200px;
  --header-height: 80px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-primary);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul,ol { list-style: none; }
img { max-width: 100%; display: block; }
button { border: none; outline: none; cursor: pointer; font-family: inherit; background: none; }

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

/* ========== Header ========== */
.header {
  position: fixed; top: 0; left: 0; width: 100%; height: var(--header-height); z-index: 1000;
  background: rgba(255,255,255,0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent; transition: var(--transition);
}
.header.scrolled { background: rgba(255,255,255,0.95); border-bottom-color: var(--border-light); box-shadow: 0 1px 8px rgba(0,0,0,0.04); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }

.logo { display: flex; align-items: center; gap: 10px; padding: 4px 0; }
.logo-img {
  /* PNG 比例 899x316 ≈ 2.85:1，header 64px 下高度 40px = 宽度 114px，更饱满 */
  height: 40px; width: auto;
  background: transparent;
  transition: var(--transition);
  display: block;
}
.logo:hover .logo-img { transform: translateY(-1px); }
.logo-mark { width: 36px; height: 36px; }
.logo-text { font-size: 20px; font-weight: 700; color: var(--text-primary); letter-spacing: -0.5px; }

.nav-menu { display: flex; align-items: center; gap: 14px; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 5px; padding: 8px 16px;
  font-size: 15px; font-weight: 500; color: var(--text-secondary);
  border-radius: var(--radius-sm); transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover { color: var(--primary); background: var(--primary-bg); }
.chev { transition: transform 0.3s; }
.nav-item:hover .chev { transform: rotate(180deg); }

.dropdown {
  position: absolute; top: calc(100% + 6px); left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 200px; background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); border: 1px solid var(--border);
  padding: 6px; opacity: 0; visibility: hidden;
  transition: all 0.25s cubic-bezier(0.4,0,0.2,1); pointer-events: none;
}
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); pointer-events: auto; }
.dropdown-link {
  display: block; padding: 10px 16px; font-size: 14px;
  color: var(--text-secondary); border-radius: var(--radius-sm); transition: var(--transition);
}
.dropdown-link:hover { background: var(--primary-bg); color: var(--primary); }

.nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-search {
  width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; color: var(--text-secondary); transition: var(--transition);
}
.nav-search:hover { background: var(--primary-bg); color: var(--primary); }

/* ========== Buttons ========== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; border-radius: var(--radius-sm); transition: var(--transition); white-space: nowrap;
}
.btn-primary {
  background: var(--primary); color: var(--white); padding: 10px 24px; font-size: 14px;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(26,110,245,0.35); }
.btn-ghost {
  background: transparent; color: var(--primary); padding: 10px 24px; font-size: 14px;
  border: 1.5px solid var(--primary);
}
.btn-ghost:hover { background: var(--primary); color: var(--white); transform: translateY(-1px); }
.btn-white {
  background: var(--white); color: var(--primary); padding: 14px 32px; font-size: 15px;
}
.btn-white:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(255,255,255,0.25); }
.btn-xl { padding: 16px 36px; font-size: 15px; border-radius: var(--radius); }

/* Mobile menu button */
.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.mobile-menu-btn span { width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }

/* ========== Hero ========== */
.hero {
  padding: 140px 0 0; position: relative; overflow: hidden;
  background: var(--primary); color: var(--white);
}
.hero-bg { position: absolute; inset: 0; overflow: hidden; }
#cyberCanvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.45; }
.hero .container { position: relative; z-index: 1; }
.hero-inner { display: flex; align-items: center; gap: 60px; padding-bottom: 100px; }
.hero-content { flex: 1.15; max-width: 620px; }
.hero-visual { flex: 1; display: flex; justify-content: center; align-items: center; }

.hero-tagline {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2);
  border-radius: 100px; font-size: 13px; color: var(--white); font-weight: 500;
  margin-bottom: 28px; backdrop-filter: blur(8px);
}
.hero-tagline-dot { width: 6px; height: 6px; background: #4ade80; border-radius: 50%; animation: pulse 2s infinite; box-shadow: 0 0 6px rgba(74,222,128,0.6); }

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero-title {
  font-size: 52px; font-weight: 800; line-height: 1.2; color: var(--white);
  margin-bottom: 28px; letter-spacing: -1.5px;
}
.hero-title-line {
  display: block;
}
.hero-title-sub {
  display: block; margin-top: 16px;
  font-size: 22px; font-weight: 500; color: rgba(255,255,255,0.75);
  letter-spacing: 0;
}
.hero-desc {
  font-size: 16px; color: rgba(255,255,255,0.82); line-height: 1.8;
  margin-bottom: 40px; max-width: 540px;
}
.hero-buttons { display: flex; gap: 16px; }

/* Hero 右侧：同心圆 + 服务标签（黑客攻防视觉） */
.hero-orbit {
  position: relative; width: 460px; height: 460px;
}
.hero-orbit-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 1; pointer-events: none;
}
.hero-orbit-lines {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 2; pointer-events: none;
  animation: heroSpin 90s linear infinite;
}
.hero-orbit-line {
  stroke: rgba(255,255,255,0.18);
  stroke-width: 1;
  stroke-dasharray: 4 6;
  animation: lineDash 2.4s linear infinite;
}
.hero-orbit-line:nth-child(2) { animation-delay: -0.4s; }
.hero-orbit-line:nth-child(3) { animation-delay: -0.8s; }
.hero-orbit-line:nth-child(4) { animation-delay: -1.2s; }
.hero-orbit-line:nth-child(5) { animation-delay: -1.6s; }
.hero-orbit-line:nth-child(6) { animation-delay: -2.0s; }
@keyframes lineDash {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -100; }
}
.hero-orbit-dots-group circle {
  animation: dotPulse 2s ease-in-out infinite;
}
.hero-orbit-dots-group circle:nth-child(2) { animation-delay: 0s; }
.hero-orbit-dots-group circle:nth-child(3) { animation-delay: 0.3s; }
.hero-orbit-dots-group circle:nth-child(4) { animation-delay: 0.6s; }
.hero-orbit-dots-group circle:nth-child(5) { animation-delay: 0.9s; }
.hero-orbit-dots-group circle:nth-child(6) { animation-delay: 1.2s; }
.hero-orbit-dots-group circle:nth-child(7) { animation-delay: 1.5s; }
@keyframes dotPulse {
  0%,100% { r: 3.5; fill: rgba(255,255,255,0.85); }
  50% { r: 5; fill: rgba(180,220,255,1); filter: drop-shadow(0 0 4px rgba(180,220,255,0.8)); }
}

.hero-orbit-ring {
  position: absolute; top: 50%; left: 50%;
  border-radius: 50%; border: 1px dashed rgba(255,255,255,0.22);
  transform: translate(-50%, -50%);
}
.hero-orbit-ring-1 { width: 260px; height: 260px; animation: heroSpin 25s linear infinite; }
.hero-orbit-ring-2 { width: 360px; height: 360px; border-color: rgba(255,255,255,0.14); animation: heroSpin 38s linear infinite reverse; }
.hero-orbit-ring-3 { width: 460px; height: 460px; border-color: rgba(255,255,255,0.08); animation: heroSpin 55s linear infinite; }

@keyframes heroSpin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 雷达扫描扇形 */
.hero-orbit-radar {
  position: absolute; top: 50%; left: 50%;
  width: 380px; height: 380px;
  transform: translate(-50%, -50%);
  background: conic-gradient(from 0deg, transparent 0deg, rgba(255,255,255,0.22) 8deg, transparent 28deg, transparent 360deg);
  border-radius: 50%;
  animation: radarSpin 3.6s linear infinite;
  mix-blend-mode: screen;
  opacity: 0.85;
  z-index: 2;
  pointer-events: none;
}
@keyframes radarSpin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.hero-orbit-core {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 140px; height: 140px; border-radius: 50%;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.32);
  backdrop-filter: blur(10px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: var(--white); z-index: 4;
  box-shadow: 0 0 0 0 rgba(255,255,255,0.5), 0 12px 48px rgba(0,0,0,0.22);
  animation: corePulse 2.4s ease-out infinite;
}
@keyframes corePulse {
  0% { box-shadow: 0 0 0 0 rgba(255,255,255,0.35), 0 12px 48px rgba(0,0,0,0.22); }
  60% { box-shadow: 0 0 0 18px rgba(255,255,255,0), 0 12px 48px rgba(0,0,0,0.22); }
  100% { box-shadow: 0 0 0 0 rgba(255,255,255,0), 0 12px 48px rgba(0,0,0,0.22); }
}
.hero-orbit-core svg { margin-bottom: 8px; opacity: 0.92; }
.hero-orbit-core-text {
  font-size: 15px; font-weight: 700; letter-spacing: 1px;
}

.hero-orbit-tag {
  position: absolute; top: 50%; left: 50%;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.28); border-radius: 100px;
  color: var(--white); font-size: 13px; font-weight: 500;
  backdrop-filter: blur(8px);
  z-index: 5;
  overflow: hidden;
  isolation: isolate;
}
/* 标签扫描光带 */
.hero-orbit-tag::before {
  content: ""; position: absolute;
  top: 0; left: -50%; height: 100%; width: 40%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.35), transparent);
  transform: skewX(-18deg);
  animation: tagScan 3.2s ease-in-out infinite;
  z-index: -1;
}
@keyframes tagScan {
  0% { left: -50%; }
  60%,100% { left: 130%; }
}
.hero-orbit-tag-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #4ade80; box-shadow: 0 0 6px rgba(74,222,128,0.7);
  flex-shrink: 0;
  animation: dotBlink 1.6s ease-in-out infinite;
}
@keyframes dotBlink {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}
/* 6 标签均匀圆周分布：半径 200，每 60° */
.hero-orbit-tag-1 { transform: translate(-50%, -50%) translate(200px, 0); }
.hero-orbit-tag-2 { transform: translate(-50%, -50%) translate(100px, -173px); }
.hero-orbit-tag-3 { transform: translate(-50%, -50%) translate(-100px, -173px); }
.hero-orbit-tag-4 { transform: translate(-50%, -50%) translate(-200px, 0); }
.hero-orbit-tag-5 { transform: translate(-50%, -50%) translate(-100px, 173px); }
.hero-orbit-tag-6 { transform: translate(-50%, -50%) translate(100px, 173px); }


/* 橙色 CTA 按钮 */
.btn-accent {
  background: #ff6b35; color: var(--white);
  font-weight: 700; padding: 16px 36px; font-size: 15px;
  border-radius: var(--radius-sm); transition: var(--transition);
}
.btn-accent:hover { background: #f25a23; transform: translateY(-1px); box-shadow: 0 12px 28px rgba(255,107,53,0.35); }

.btn-ghost-light {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: var(--white);
  padding: 16px 36px; font-size: 15px; font-weight: 600;
  border-radius: var(--radius-sm); border: 1.5px solid rgba(255,255,255,0.5);
  transition: var(--transition);
}
.btn-ghost-light:hover { background: rgba(255,255,255,0.12); border-color: var(--white); }

/* ========== 鉴微 AI 代码审计产品区 ========== */
.product-section {
  position: relative; overflow: hidden;
  padding: 70px 0 90px;
  background: linear-gradient(180deg, #ffffff 0%, #eef4fd 100%);
}
/* 产品区容器：适度加宽到约 90% 屏宽，避免内容溢出 */
.product-section .container {
  width: 100%; max-width: 1500px;
}
@media (max-width: 1280px) {
  .product-section .container { width: 96%; }
}
.product-section-glow {
  position: absolute;
  top: -220px; left: 50%; transform: translateX(-50%);
  width: 1200px; height: 560px;
  background: radial-gradient(ellipse at center, rgba(37,99,235,0.14) 0%, transparent 65%);
  pointer-events: none;
}
.product-section .container { position: relative; z-index: 1; }
.product-header { text-align: center; margin-bottom: 52px; }

/* 横向宽屏：左轮播大图 + 右介绍 */
.product-showcase {
  display: flex; align-items: stretch; gap: 0;
  background: var(--white);
  border-radius: 24px;
  overflow: visible;
  margin-bottom: 40px;
  box-shadow: 0 24px 70px rgba(37,99,235,0.10);
}

/* 左轮播：占 32%，宽度窄 */
.product-slider {
  flex: 0 0 32%;
  position: relative;
  background: linear-gradient(170deg, #0a1c44 0%, #0d2557 55%, #10307a 100%);
  min-height: 315px;
  display: flex; flex-direction: column;
  overflow: hidden;
  padding: 24px 20px 56px;
}
/* 星空粒子 */
.product-slider::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(2px 2px at 12% 16%, rgba(140,190,255,0.7) 0%, transparent 100%),
    radial-gradient(2px 2px at 28% 66%, rgba(140,190,255,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 44% 26%, rgba(180,215,255,0.5) 0%, transparent 100%),
    radial-gradient(2px 2px at 62% 74%, rgba(140,190,255,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 76% 22%, rgba(180,215,255,0.6) 0%, transparent 100%),
    radial-gradient(2px 2px at 88% 58%, rgba(140,190,255,0.45) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 8% 88%, rgba(180,215,255,0.4) 0%, transparent 100%),
    radial-gradient(2px 2px at 52% 94%, rgba(140,190,255,0.35) 0%, transparent 100%);
  pointer-events: none;
}
.product-slider::after {
  content: ""; position: absolute;
  top: -160px; right: -120px; width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(56,189,248,0.2) 0%, transparent 66%);
  border-radius: 50%;
  animation: glowFloat 8s ease-in-out infinite;
  pointer-events: none;
}
@keyframes glowFloat {
  0%,100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(-18px,14px) scale(1.08); }
}

.product-slider-track {
  position: relative; z-index: 1;
  display: flex;
  flex: 1;
  width: 100%; overflow: hidden;
  align-items: stretch;
}
.product-slide {
  flex: 0 0 100%;
  width: 100%;
  display: none;
  flex-direction: column;
  justify-content: center;
  animation: slideFade 0.5s cubic-bezier(0.16,1,0.3,1);
}
.product-slide.is-active { display: flex; }
@keyframes slideFade {
  from { opacity: 0; transform: translateX(26px); }
  to { opacity: 1; transform: translateX(0); }
}

/* 屏幕 mockup：填满左侧可用宽度并垂直居中 */
.product-shot {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  overflow: hidden;
  backdrop-filter: blur(6px);
}
.product-shot-cap {
  width: 100%;
  margin-top: 14px;
  font-size: 12.5px; letter-spacing: 0.5px;
  color: rgba(255,255,255,0.55);
  text-align: center;
  flex-shrink: 0;
}
.product-shot-bar {
  display: flex; align-items: center; gap: 5px;
  padding: 9px 12px;
  background: rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.ps-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.ps-dot-r { background: #ff5f57; }
.ps-dot-y { background: #febc2e; }
.ps-dot-g { background: #28c840; }
.ps-url {
  margin-left: auto;
  font-size: 10px; color: rgba(255,255,255,0.4);
  letter-spacing: 0.3px;
}
.product-shot-body { padding: 16px 16px 18px; }
.ps-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}
.ps-logo {
  font-size: 14px; font-weight: 800; color: var(--white); letter-spacing: 0.5px;
}
.ps-status {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 10px; color: #7dd3fc;
  background: rgba(56,189,248,0.12);
  border: 1px solid rgba(56,189,248,0.25);
  border-radius: 100px; padding: 2px 8px;
}
.ps-status-clear { color: #86efac; border-color: rgba(134,239,172,0.3); background: rgba(34,197,94,0.12); }
.ps-status-dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: #38bdf8;
  animation: pulse 1.4s ease-in-out infinite;
}
.ps-code { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.ps-code-line {
  display: flex; align-items: flex-start; gap: 6px;
  font-size: 11px; color: rgba(255,255,255,0.85);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 6px;
  padding: 6px 10px;
  line-height: 1.5;
  overflow: hidden;
}
.ps-code-line .ps-code-text {
  flex: 1; min-width: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ps-code-line b {
  flex-shrink: 0;
  color: #fca5a5; font-size: 11px; font-weight: 700;
  background: rgba(239,68,68,0.16); padding: 1px 8px; border-radius: 100px;
  white-space: nowrap;
}
.ps-code-fix b { color: #86efac; background: rgba(34,197,94,0.16); }
.ps-code-tag {
  flex-shrink: 0; font-size: 10px; font-weight: 700;
  color: #7dd3fc; letter-spacing: 1px;
}
.ps-code-fix .ps-code-tag { color: #86efac; }
/* Slide2 图表 */
.ps-chart { display: flex; align-items: center; gap: 22px; padding: 8px 0 16px; }
.ps-chart-sum { text-align: center; flex-shrink: 0; }
.ps-chart-num {
  font-size: 40px; font-weight: 800; color: #86efac; line-height: 1;
}
.ps-chart-label { font-size: 11px; color: rgba(255,255,255,0.5); margin-top: 6px; }
.ps-chart-bars { flex: 1; display: flex; flex-direction: column; gap: 10px; }
.ps-bar {
  display: flex; align-items: center; gap: 10px;
}
.ps-bar span {
  display: block; height: 10px; border-radius: 100px;
  background: linear-gradient(90deg, #3b82f6, #38bdf8);
}
.ps-bar i {
  font-style: normal; font-size: 11px; color: rgba(255,255,255,0.55);
  min-width: 32px; text-align: right;
}
/* Slide3 图谱：横向数据流 */
.ps-graph {
  padding: 10px 0 12px;
}
.ps-graph-flow {
  display: flex; align-items: center; justify-content: center;
  gap: 6px; flex-wrap: nowrap;
}
.ps-graph-node {
  font-size: 11px; color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 8px;
  padding: 5px 9px;
  white-space: nowrap;
}
.ps-graph-source { color: #7dd3fc; border-color: rgba(56,189,248,0.45); }
.ps-graph-sink { color: #fca5a5; border-color: rgba(239,68,68,0.45); }
.ps-graph-arrow {
  font-size: 12px; color: rgba(255,255,255,0.5);
  flex-shrink: 0;
}
.ps-graph-tip {
  margin-top: 9px;
  text-align: center;
  font-size: 10.5px; color: rgba(255,255,255,0.5);
  letter-spacing: 0.3px;
}
.ps-agents { display: flex; flex-wrap: wrap; gap: 6px; }
.ps-agent {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 10.5px; color: rgba(255,255,255,0.75);
  background: rgba(255,255,255,0.07);
  border-radius: 100px; padding: 4px 10px;
}
.ps-agent i {
  width: 5px; height: 5px; border-radius: 50%;
  background: #38bdf8;
}

/* 轮播控件 */
.product-slider-nav {
  position: absolute; left: 0; right: 0; bottom: 20px;
  z-index: 2;
  display: flex; align-items: center; justify-content: center; gap: 18px;
}
.product-slider-arrow {
  width: 38px; height: 38px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--white);
  transition: var(--transition);
}
.product-slider-arrow:hover {
  background: rgba(255,255,255,0.28);
  border-color: rgba(255,255,255,0.5);
}
.product-slider-dots { display: flex; align-items: center; gap: 8px; }
.product-slider-dot {
  width: 8px; height: 8px; border-radius: 100px;
  background: rgba(255,255,255,0.3);
  transition: var(--transition);
  padding: 0; cursor: pointer;
}
.product-slider-dot.is-active {
  width: 26px;
  background: var(--white);
}

/* 右介绍：70% 宽 */
.product-info {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column; justify-content: center;
  padding: 34px 32px;
}
.product-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 700; letter-spacing: 2px;
  color: var(--primary);
  margin-bottom: 10px;
}
.product-badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #38bdf8; box-shadow: 0 0 8px rgba(56,189,248,0.9);
  animation: pulse 1.8s ease-in-out infinite;
}
.product-name-row {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-bottom: 10px;
}
.product-info-name { font-size: 30px; font-weight: 800; color: var(--text-primary); letter-spacing: 1px; }
.product-info-tag {
  padding: 4px 12px;
  background: var(--primary-bg); color: var(--primary);
  font-size: 12px; font-weight: 600; border-radius: 100px;
}
.product-desc {
  font-size: 14px; line-height: 1.7; color: var(--text-secondary);
  margin-bottom: 16px; max-width: 100%;
}
.product-desc b { color: var(--primary); font-size: 15px; }

/* 2x2 紧凑要点 */
.product-list {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px 20px;
  margin-bottom: 18px;
}
.product-list li {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 10px;
  transition: var(--transition);
}
.product-list li.is-active {
  background: var(--primary-bg);
  border-color: #bfdbfe;
}
.pl-ic {
  width: 30px; height: 30px; min-width: 30px;
  background: var(--primary-bg);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  margin-top: 1px;
}
.product-list li.is-active .pl-ic { background: var(--primary); color: var(--white); }
.product-list li div { display: flex; flex-direction: column; }
.product-list li b { font-size: 13.5px; font-weight: 700; color: var(--text-primary); margin-bottom: 2px; }
.product-list li span { font-size: 11.5px; color: var(--text-muted); line-height: 1.5; }

.product-cta { display: flex; align-items: center; gap: 24px; }
.product-more {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: var(--primary);
  padding: 10px 4px;
}
.product-more:hover { gap: 10px; }

/* ========== Section Common ========== */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-section); }

.section-header { text-align: center; margin-bottom: 64px; }
.section-label {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 700; color: var(--primary);
  text-transform: uppercase; letter-spacing: 3px; margin-bottom: 20px;
}
.section-label::before,.section-label::after {
  content: ""; width: 24px; height: 1.5px; background: var(--primary-lighter); border-radius: 2px;
}
.section-title {
  font-size: 38px; font-weight: 800; color: var(--text-primary);
  margin-bottom: 16px; letter-spacing: -1px; line-height: 1.25;
}
.section-desc {
  font-size: 16px; color: var(--text-secondary); max-width: 560px;
  margin: 0 auto; line-height: 1.8;
}
.section-header-light .section-title { color: var(--white); }
.section-header-light .section-desc { color: rgba(255,255,255,0.75); }
.section-header-light .section-label { color: rgba(255,255,255,0.85); }
.section-header-light .section-label::before,.section-header-light .section-label::after { background: rgba(255,255,255,0.25); }

/* ========== 核心主张（安全发现左移） ========== */
.claim-grid {
  display: flex; align-items: stretch; justify-content: center; gap: 24px;
  max-width: 1000px; margin: 0 auto;
}
.claim-card {
  flex: 1; position: relative; overflow: hidden;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 44px 36px;
  text-align: left; transition: var(--transition);
}
.claim-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
/* 第二张卡改为"左侧品牌蓝细条"形式，避免深蓝大块 */
.claim-card-accent { border-color: var(--border); }
.claim-card-accent::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: linear-gradient(180deg, var(--primary-light), var(--primary), var(--primary-dark));
}
.claim-card-accent:hover { box-shadow: 0 16px 40px rgba(26,110,245,0.18); }
.claim-step {
  position: absolute; top: 16px; right: 24px;
  font-size: 64px; font-weight: 800; line-height: 1;
  color: rgba(37,99,235,0.06); letter-spacing: -2px;
}
.claim-card-accent .claim-step { color: rgba(37,99,235,0.12); }
.claim-icon {
  width: 72px; height: 72px; margin-bottom: 24px;
  background: var(--primary-bg); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
}
.claim-title { font-size: 24px; font-weight: 700; color: var(--text-primary); margin-bottom: 12px; }
.claim-desc { font-size: 15px; line-height: 1.8; color: var(--text-secondary); }
.claim-arrow { flex-shrink: 0; color: var(--text-muted); }

/* ========== 核心主张 Tab ========== */
.philosophy-tabs { max-width: 1100px; margin: 0 auto 64px; }
.philosophy-tabs-nav {
  display: flex; justify-content: center; gap: 12px;
  margin-bottom: 36px;
}
.philosophy-tab-btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 12px;
  padding: 16px 32px; border-radius: var(--radius-lg);
  border: 1px solid var(--border); background: var(--white);
  cursor: pointer; transition: var(--transition);
}
.philosophy-tab-btn:hover { border-color: var(--primary-light); transform: translateY(-2px); }
.philosophy-tab-btn.is-active {
  background: var(--primary); border-color: var(--primary);
  box-shadow: 0 10px 28px rgba(26,110,245,0.22);
}
/* 激活按钮斜向流光扫过 */
.philosophy-tab-btn.is-active::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -60%;
  width: 40%; background: linear-gradient(100deg, transparent, rgba(255,255,255,0.35), transparent);
  transform: skewX(-20deg);
  animation: tabShine 3s ease-in-out infinite;
}
@keyframes tabShine {
  0% { left: -60%; }
  60% { left: 130%; }
  100% { left: 130%; }
}
.philosophy-tab-icon {
  width: 42px; height: 42px; min-width: 42px;
  background: var(--primary-bg); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  transition: transform 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
.philosophy-tab-btn:hover .philosophy-tab-icon { transform: scale(1.08); }
.philosophy-tab-btn.is-active .philosophy-tab-icon { background: rgba(255,255,255,0.18); color: var(--white); }
.philosophy-tab-text { display: flex; flex-direction: column; text-align: left; }
.philosophy-tab-text strong {
  font-size: 16px; font-weight: 700; color: var(--text-primary);
  margin-bottom: 2px;
}
.philosophy-tab-text em {
  font-style: normal; font-size: 12px; color: var(--text-muted);
}
.philosophy-tab-btn.is-active .philosophy-tab-text strong { color: var(--white); }
.philosophy-tab-btn.is-active .philosophy-tab-text em { color: rgba(255,255,255,0.72); }

.philosophy-panel { display: none; }
.philosophy-panel.is-active { display: block; animation: panelIn 0.5s cubic-bezier(0.16,1,0.3,1); }
@keyframes panelIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 面板内容依次浮入（stagger） */
.philosophy-panel.is-active > .sdlc-wrap,
.philosophy-panel.is-active > .drill-hero {
  animation: blockIn 0.5s cubic-bezier(0.16,1,0.3,1) both;
}
.philosophy-panel.is-active > .drill-hero { animation-delay: 0.05s; }
.philosophy-panel.is-active > .drill-phase { animation: blockIn 0.6s cubic-bezier(0.16,1,0.3,1) 0.15s both; }
.philosophy-panel.is-active > .drill-gains { animation: blockIn 0.6s cubic-bezier(0.16,1,0.3,1) 0.25s both; }
@keyframes blockIn {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* sdlc 步骤逐个点亮 */
.philosophy-panel.is-active .sdlc-step {
  animation: stepIn 0.5s cubic-bezier(0.16,1,0.3,1) both;
}
.philosophy-panel.is-active .sdlc-step:nth-child(1) { animation-delay: 0.1s; }
.philosophy-panel.is-active .sdlc-step:nth-child(3) { animation-delay: 0.2s; }
.philosophy-panel.is-active .sdlc-step:nth-child(5) { animation-delay: 0.3s; }
.philosophy-panel.is-active .sdlc-step:nth-child(7) { animation-delay: 0.4s; }
.philosophy-panel.is-active .sdlc-step:nth-child(9) { animation-delay: 0.5s; }
.philosophy-panel.is-active .sdlc-step:nth-child(11) { animation-delay: 0.6s; }
@keyframes stepIn {
  from { opacity: 0; transform: translateY(14px) scale(0.92); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* drill 四步流程 stagger 浮入 */
.philosophy-panel.is-active .drill-phase-step {
  animation: blockIn 0.55s cubic-bezier(0.16,1,0.3,1) both;
}
.philosophy-panel.is-active .drill-phase-step:nth-child(1) { animation-delay: 0.15s; }
.philosophy-panel.is-active .drill-phase-step:nth-child(3) { animation-delay: 0.25s; }
.philosophy-panel.is-active .drill-phase-step:nth-child(5) { animation-delay: 0.35s; }
.philosophy-panel.is-active .drill-phase-step:nth-child(7) { animation-delay: 0.45s; }
.philosophy-panel.is-active .drill-phase-arrow { animation: blockIn 0.4s ease both; }
.philosophy-panel.is-active .drill-phase-arrow:nth-child(2) { animation-delay: 0.2s; }
.philosophy-panel.is-active .drill-phase-arrow:nth-child(4) { animation-delay: 0.3s; }
.philosophy-panel.is-active .drill-phase-arrow:nth-child(6) { animation-delay: 0.4s; }
.philosophy-panel.is-active .drill-gain {
  animation: blockIn 0.55s cubic-bezier(0.16,1,0.3,1) both;
}
.philosophy-panel.is-active .drill-gain:nth-child(1) { animation-delay: 0.3s; }
.philosophy-panel.is-active .drill-gain:nth-child(2) { animation-delay: 0.38s; }
.philosophy-panel.is-active .drill-gain:nth-child(3) { animation-delay: 0.46s; }

/* ========== 攻防演练备战（风险提前感知） ========== */
.drill-hero {
  display: flex; align-items: center; gap: 20px;
  background: var(--bg-section); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px 28px; margin-bottom: 24px;
  position: relative; overflow: hidden;
}
/* banner 左侧蓝色描边呼吸 */
.drill-hero::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--primary-light), var(--primary), var(--primary-light));
  animation: heroBar 2.4s ease-in-out infinite;
}
@keyframes heroBar {
  0%,100% { opacity: 0.6; }
  50% { opacity: 1; }
}
.drill-hero-icon {
  width: 64px; height: 64px; min-width: 64px;
  background: var(--white); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); box-shadow: var(--shadow-sm);
  position: relative;
  animation: drillFloat 2.8s ease-in-out infinite;
}
.drill-hero-icon::after {
  content: ""; position: absolute; inset: -5px; border-radius: var(--radius);
  border: 1px solid rgba(26,110,245,0.3);
  animation: sdlcRing 2.4s ease-out infinite;
}
.drill-hero-title { font-size: 18px; font-weight: 700; color: var(--text-primary); margin-bottom: 6px; }
.drill-hero-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* 备战四步流程 */
.drill-phase {
  display: flex; align-items: stretch; justify-content: center;
  gap: 8px; margin-bottom: 32px;
}
.drill-phase-step {
  flex: 1; position: relative;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px 22px;
  transition: var(--transition);
}
.drill-phase-step:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.drill-phase-step-final {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-color: transparent; color: var(--white);
}
.drill-phase-step-final:hover { box-shadow: 0 16px 44px rgba(13,71,161,0.25); }
.drill-phase-badge {
  display: inline-flex; align-items: center;
  font-size: 11px; font-weight: 700; letter-spacing: 1px;
  color: var(--primary); margin-bottom: 14px;
}
.drill-phase-step-final .drill-phase-badge { color: rgba(255,255,255,0.7); }
.drill-phase-head {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 12px;
}
.drill-phase-ic {
  width: 38px; height: 38px; min-width: 38px;
  background: var(--primary-bg); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
}
.drill-phase-step-final .drill-phase-ic { background: rgba(255,255,255,0.16); color: var(--white); }
.drill-phase-title { font-size: 16px; font-weight: 700; color: var(--text-primary); }
.drill-phase-step-final .drill-phase-title { color: var(--white); }
.drill-phase-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 14px; }
.drill-phase-step-final .drill-phase-desc { color: rgba(255,255,255,0.8); }
.drill-phase-meta {
  display: inline-block; font-size: 12px; color: var(--text-muted);
  background: var(--bg-section); border-radius: 100px;
  padding: 4px 12px; line-height: 1.6;
}
.drill-phase-step-final .drill-phase-meta { background: rgba(255,255,255,0.14); color: rgba(255,255,255,0.85); }
.drill-phase-arrow {
  align-self: center; flex-shrink: 0;
  color: var(--text-muted);
}
.drill-phase-arrow svg { display: block; }

/* 备战收益数据 */
.drill-gains {
  display: flex; align-items: stretch; gap: 24px;
}
.drill-gain {
  flex: 1; text-align: center;
  background: var(--bg-section); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 26px 16px;
  transition: var(--transition);
}
.drill-gain:hover { background: var(--white); box-shadow: var(--shadow-md); border-color: var(--primary); }
.drill-gain-num {
  font-size: 30px; font-weight: 800; color: var(--primary);
  line-height: 1; margin-bottom: 10px; letter-spacing: -0.5px;
  font-variant-numeric: tabular-nums;
}
.drill-gain-unit { font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-left: 6px; }
.drill-gain-desc { font-size: 13px; color: var(--text-muted); }

/* SDLC 安全左移流程 */
.sdlc-wrap {
  background: var(--bg-section);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 44px;
  margin-bottom: 56px;
}
.sdlc-head { text-align: center; margin-bottom: 36px; }
.sdlc-head-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 700; color: var(--primary);
  letter-spacing: 1px;
}
.sdlc-head-label::before,.sdlc-head-label::after {
  content: ""; width: 24px; height: 1.5px; background: var(--primary-lighter); border-radius: 2px;
}
.sdlc-steps {
  display: flex; align-items: stretch; justify-content: center;
  margin-bottom: 32px;
}
.sdlc-step {
  position: relative; flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  padding: 0 6px;
}
/* 普通步骤节点：呼吸微光 */
.sdlc-step-num {
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--white); border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; color: var(--text-muted);
  margin-bottom: 14px; position: relative; z-index: 1;
  transition: all 0.3s ease;
}
.sdlc-step:hover .sdlc-step-num {
  border-color: var(--primary-light); color: var(--primary);
}
/* 激活步骤：主蓝填充 + 波纹扩散 + 柔和光晕 */
.sdlc-step-active .sdlc-step-num {
  background: var(--primary); border-color: var(--primary); color: var(--white);
  box-shadow: 0 0 0 0 rgba(26,110,245,0.35);
  animation: sdlcPulse 2.2s ease-out infinite;
}
.sdlc-step-active .sdlc-step-num::after {
  content: ""; position: absolute; inset: -6px; border-radius: 50%;
  border: 1.5px solid rgba(26,110,245,0.35);
  animation: sdlcRing 2.2s ease-out infinite;
}
@keyframes sdlcPulse {
  0% { box-shadow: 0 0 0 0 rgba(26,110,245,0.35); }
  60% { box-shadow: 0 0 0 8px rgba(26,110,245,0); }
  100% { box-shadow: 0 0 0 0 rgba(26,110,245,0); }
}
@keyframes sdlcRing {
  0% { transform: scale(1); opacity: 0.9; }
  100% { transform: scale(1.6); opacity: 0; }
}
.sdlc-step-name { font-size: 13px; font-weight: 600; color: var(--text-secondary); text-align: center; transition: color 0.3s; }
.sdlc-step-active .sdlc-step-name { color: var(--primary); font-weight: 700; }
.sdlc-step-tag {
  margin-top: 8px; padding: 2px 10px;
  background: #fff7ed; color: #ea580c;
  border: 1px solid #fed7aa; border-radius: 100px;
  font-size: 11px; font-weight: 600; white-space: nowrap;
  animation: tagGlow 2s ease-in-out infinite;
}
@keyframes tagGlow {
  0%,100% { box-shadow: 0 0 0 0 rgba(234,88,12,0); }
  50% { box-shadow: 0 0 10px 1px rgba(234,88,12,0.18); }
}
/* 步骤间连线：流动虚线，表现"风险在流程中游走" */
.sdlc-line {
  flex: 0 0 auto; width: 24px; position: relative; top: 15px;
  height: 2px; border-radius: 2px; overflow: hidden;
  background: var(--border);
}
.sdlc-line::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -12px;
  width: 12px; border-radius: 2px;
  background: linear-gradient(90deg, transparent, rgba(26,110,245,0.7), transparent);
  animation: lineFlow 1.8s linear infinite;
}
.sdlc-step-active + .sdlc-line { background: rgba(26,110,245,0.18); }
.sdlc-step-active + .sdlc-line::after { animation-duration: 1.1s; }
@keyframes lineFlow {
  from { left: -12px; }
  to { left: 100%; }
}
/* 激活步骤顶部的警戒条（模拟风险点） */
.sdlc-step-active .sdlc-step-tag::before {
  content: ""; display: inline-block; width: 5px; height: 5px;
  background: #ea580c; border-radius: 50%; margin-right: 5px;
  vertical-align: 1px; animation: tagDot 1.1s ease-in-out infinite;
}
@keyframes tagDot {
  0%,100% { opacity: 1; }
  50% { opacity: 0.25; }
}
.sdlc-foot {
  background: var(--white); border-radius: var(--radius);
  padding: 20px 24px; border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 8px;
}
.sdlc-foot-text { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.sdlc-foot-text::before { content: "✕  "; color: #ef4444; font-weight: 700; }
.sdlc-foot-text-brand { color: var(--text-primary); font-weight: 500; }
.sdlc-foot-text-brand::before { content: "✓  "; color: var(--primary); font-weight: 700; }

/* ========== Capabilities ========== */
.capabilities-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 24px;
}
.capability-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 40px 36px; border: 1px solid var(--border);
  transition: var(--transition); position: relative; overflow: hidden;
}
.capability-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0; transition: var(--transition);
}
.capability-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.capability-card:hover::before { opacity: 1; }

.cap-icon {
  width: 52px; height: 52px; background: var(--primary-bg); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px; transition: var(--transition); color: var(--primary);
}
.capability-card:hover .cap-icon { background: var(--primary); color: var(--white); }

.cap-title { font-size: 19px; font-weight: 700; color: var(--text-primary); margin-bottom: 12px; }
.cap-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.75; margin-bottom: 20px; }
.cap-index {
  position: absolute; top: 20px; right: 24px;
  font-size: 44px; font-weight: 800; line-height: 1;
  color: rgba(37,99,235,0.07); letter-spacing: -1px;
  transition: var(--transition);
}
.capability-card:hover .cap-index { color: rgba(37,99,235,0.14); }
.cap-points { margin-bottom: 20px; }
.cap-points li {
  position: relative; padding-left: 18px;
  font-size: 13.5px; color: var(--text-secondary);
  line-height: 1.8;
}
.cap-points li::before {
  content: ""; position: absolute; left: 0; top: 11px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary-light); opacity: 0.6;
}
.cap-features { display: flex; flex-wrap: wrap; gap: 8px; }
.cap-tag {
  padding: 4px 12px; background: var(--primary-bg); color: var(--primary);
  font-size: 12px; font-weight: 500; border-radius: 100px;
}
.cap-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: var(--primary); margin-top: 20px;
}
.cap-link:hover { gap: 10px; }

/* ========== 服务交付流程 ========== */
.process-grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 24px;
}
.process-item {
  position: relative;
  background: var(--white); border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 36px 28px; transition: var(--transition);
}
.process-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.process-no {
  position: absolute; top: 18px; right: 22px;
  font-size: 40px; font-weight: 800; line-height: 1;
  color: rgba(37,99,235,0.08); letter-spacing: -1px;
}
.process-icon {
  width: 56px; height: 56px; margin-bottom: 20px;
  background: var(--primary-bg); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); transition: var(--transition);
}
.process-item:hover .process-icon { background: var(--primary); color: var(--white); }
.process-title { font-size: 17px; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; line-height: 1.4; }
.process-desc { font-size: 13.5px; color: var(--text-secondary); line-height: 1.75; }

/* ========== 为什么选择知御智安（蓝白简约） ========== */
.why-section {
  position: relative; overflow: hidden;
  padding: 100px 0;
  background: var(--bg-section);
  color: var(--text-primary);
}
.why-section .container { position: relative; z-index: 1; }

/* 战绩数字行 */
.why-stats {
  display: flex; align-items: stretch; justify-content: space-between; gap: 20px;
  margin-bottom: 40px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 40px;
}
.why-stat { flex: 1; display: flex; flex-direction: column; align-items: center; text-align: center; }
.why-stat-num {
  font-size: 38px; font-weight: 800; line-height: 1;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
  color: var(--primary);
}
.why-stat-unit { font-size: 18px; font-weight: 700; color: var(--primary); }
.why-stat-label { font-size: 13px; color: var(--text-muted); }
.why-stat-divider { width: 1px; background: var(--border); }

/* 对比面板 */
.vs-panel {
  display: flex; align-items: stretch; gap: 0;
  margin-bottom: 40px;
}
.vs-col {
  flex: 1;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 32px;
  transition: var(--transition);
}
.vs-col-bad:hover { border-color: #f3c1c1; box-shadow: var(--shadow-md); }
.vs-col-good {
  border-color: var(--primary-light);
  box-shadow: 0 4px 16px rgba(37,99,235,0.06);
}
.vs-col-good:hover { border-color: var(--primary); box-shadow: var(--shadow-lg); }
.vs-col-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 20px;
}
.vs-col-head b {
  display: block;
  font-size: 17px; font-weight: 800; color: var(--text-primary);
  line-height: 1.3;
}
.vs-col-head em {
  display: block; font-style: normal;
  font-size: 12px; color: var(--text-muted);
  margin-top: 2px;
}
.vs-mark {
  width: 30px; height: 30px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.vs-mark-x { background: #fef2f2; color: #dc2626; }
.vs-mark-check { background: var(--primary-bg); color: var(--primary); }
.vs-list { display: flex; flex-direction: column; gap: 13px; }
.vs-list li {
  position: relative; padding-left: 20px;
  font-size: 14px; line-height: 1.7;
  color: var(--text-secondary);
}
.vs-col-good .vs-list li { color: var(--text-primary); }
.vs-list li::before {
  content: ""; position: absolute; left: 0; top: 10px;
  width: 6px; height: 6px; border-radius: 50%;
}
.vs-list-bad li::before { background: #f87171; }
.vs-list-good li::before { background: var(--primary); }
.vs-center {
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 0 20px;
}
.vs-vs-light {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  font-size: 12px; font-weight: 800; letter-spacing: 1px;
  color: var(--primary);
  width: 62px; height: 62px; border-radius: 50%;
  justify-content: center;
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}
.vs-vs-light svg { opacity: 0.6; }

/* 核心优势卡片 */
.why-cards {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 20px;
}
.why-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 34px 30px;
  overflow: hidden;
  transition: var(--transition);
}
.why-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary-light), var(--primary));
  opacity: 0; transition: var(--transition);
}
.why-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}
.why-card:hover::before { opacity: 1; }
.why-card-index {
  position: absolute; top: 14px; right: 20px;
  font-size: 42px; font-weight: 800; line-height: 1;
  color: rgba(37,99,235,0.07); letter-spacing: -1px;
}
.why-card-ic {
  width: 58px; height: 58px; margin-bottom: 20px;
  background: var(--primary-bg);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  transition: var(--transition);
}
.why-card:hover .why-card-ic {
  background: var(--primary); color: var(--white);
}
.why-card-title {
  font-size: 18px; font-weight: 800; color: var(--text-primary);
  margin-bottom: 10px;
}
.why-card-desc {
  font-size: 13.5px; line-height: 1.75;
  color: var(--text-secondary);
}

/* ========== Partners 生态伙伴 ========== */
.partners-track {
  display: flex; justify-content: center; gap: 56px;
  flex-wrap: wrap; padding: 12px 0;
}
.partner-item {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 16px;
  min-width: 240px; height: 64px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 0;
  padding: 0 40px;
  font-size: 17px; font-weight: 600; color: #64748b;
  transition: var(--transition);
  letter-spacing: 1px;
}
.partner-item:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.partner-logo {
  width: 38px; height: 38px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 50%;
}

/* ========== CTA ========== */
.cta-section {
  padding: 72px 0; position: relative; overflow: hidden;
  background: var(--primary);
}
.cta-banner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 48px;
}
.cta-copy { flex: 1; }
.cta-title {
  font-size: 32px; font-weight: 700; line-height: 1.3; color: var(--white);
  letter-spacing: -0.5px; margin-bottom: 12px;
}
.cta-desc {
  font-size: 16px; color: rgba(255,255,255,0.8);
  line-height: 1.7; max-width: 640px;
}
.cta-actions {
  display: flex; align-items: center; gap: 16px;
  flex-shrink: 0;
}
.btn-cta-primary {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--white); color: var(--primary);
  padding: 14px 36px; font-size: 15px; font-weight: 600;
  border-radius: var(--radius-sm); transition: var(--transition);
  white-space: nowrap;
}
.btn-cta-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(0,0,0,0.18); }
.btn-cta-ghost {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: var(--white);
  padding: 13px 36px; font-size: 15px; font-weight: 500;
  border-radius: var(--radius-sm); border: 1px solid rgba(255,255,255,0.55);
  transition: var(--transition); white-space: nowrap;
}
.btn-cta-ghost:hover { background: rgba(255,255,255,0.12); }

/* ========== Footer ========== */
.footer { background: var(--bg-dark); color: rgba(255,255,255,0.65); padding: 80px 0 0; }
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1.2fr 1fr;
  gap: 48px; padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo-text { color: var(--white); }
.footer-brand-desc { font-size: 14px; line-height: 1.8; margin: 20px 0 28px; color: rgba(255,255,255,0.45); }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 38px; height: 38px; background: rgba(255,255,255,0.06); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.4); transition: var(--transition);
}
.footer-social a:hover { background: var(--primary); color: var(--white); }

.footer-col-title { font-size: 15px; font-weight: 600; color: var(--white); margin-bottom: 24px; }
.footer-links li { margin-bottom: 14px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.45); transition: var(--transition); }
.footer-links a:hover { color: var(--white); }

/* 安全服务两列网格 */
.footer-links-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 10px 24px;
}
.footer-links-grid li { margin-bottom: 0; }
.footer-links-grid a { font-size: 13px; white-space: nowrap; }

/* Footer 二维码 */
.footer-qr { margin: 4px 0 18px; }
.footer-qr-img {
  display: block;
  width: 112px; height: 112px;
  object-fit: contain;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px;
}
.footer-qr-tip {
  margin-top: 8px;
  font-size: 12px; color: rgba(255,255,255,0.5);
  letter-spacing: 0.5px;
}

.footer-bottom {
  padding: 28px 0; display: flex; align-items: center; justify-content: space-between;
  font-size: 13px; color: rgba(255,255,255,0.25);
}
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { color: rgba(255,255,255,0.25); }
.footer-bottom-links a:hover { color: rgba(255,255,255,0.5); }

/* ========== Scroll Reveal ========== */
.reveal { opacity: 0; transform: translateY(32px); transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1); }
.reveal.active { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }

/* ========== Back to Top ========== */
.back-to-top {
  position: fixed; bottom: 32px; right: 32px; width: 44px; height: 44px;
  background: var(--primary); color: var(--white); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(26,110,245,0.35); opacity: 0; visibility: hidden;
  transition: var(--transition); z-index: 999;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(26,110,245,0.45); }

/* ========== Mobile Nav Overlay ========== */
.mobile-nav-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.3); z-index: 999;
  opacity: 0; visibility: hidden; transition: var(--transition);
}
.mobile-nav-overlay.active { opacity: 1; visibility: visible; }
.mobile-nav {
  position: fixed; top: 0; right: -320px; width: 320px; height: 100%;
  background: var(--white); z-index: 1000; padding: 28px;
  transition: right 0.35s cubic-bezier(0.4,0,0.2,1); overflow-y: auto;
}
.mobile-nav.active { right: 0; }
.mobile-nav-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 36px; }
.mobile-nav-close {
  width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; background: var(--bg-section); color: var(--text-secondary);
}
.mobile-nav-links { display: flex; flex-direction: column; gap: 2px; }
.mobile-nav-links a {
  display: block; padding: 14px 16px; font-size: 15px; font-weight: 500;
  color: var(--text-secondary); border-radius: var(--radius-sm); transition: var(--transition);
}
.mobile-nav-links a:hover { background: var(--primary-bg); color: var(--primary); }

/* ========== Responsive: 1024px ========== */
@media (max-width: 1024px) {
  .hero-inner { flex-direction: column; text-align: center; gap: 60px; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-buttons { justify-content: center; }
  .hero-orbit { width: 400px; height: 400px; }
  .capabilities-grid { grid-template-columns: repeat(2,1fr); }
  .process-grid { grid-template-columns: repeat(2,1fr); }
  .product-showcase { flex-direction: column; }
  .product-slider { flex: none; min-height: 320px; }
  .claim-grid { flex-direction: column; max-width: 560px; }
  .claim-arrow { transform: rotate(90deg); }
  .footer-grid { grid-template-columns: repeat(3,1fr); }
}

/* ========== Responsive: 768px ========== */
@media (max-width: 768px) {
  :root { --header-height: 64px; }
  .container { padding: 0 20px; }
  .nav-menu, .nav-actions .btn { display: none; }
  .mobile-menu-btn { display: flex; }
  .hero { padding: 120px 0 0; }
  .hero-inner { flex-direction: column; gap: 40px; padding-bottom: 60px; text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-buttons { justify-content: center; flex-wrap: wrap; }
  .hero-orbit { width: 340px; height: 340px; }
  .why-stats { flex-wrap: wrap; padding: 24px; gap: 16px; }
  .why-stat { flex: 0 0 calc(50% - 16px); }
  .why-stat-divider { display: none; }
  .vs-panel { flex-direction: column; gap: 16px; }
  .vs-center { padding: 0; }
  .why-cards { grid-template-columns: 1fr; }
  .hero-orbit-ring-3 { display: none; }
  .hero-title { font-size: 34px; }
  .hero-title-sub { font-size: 18px; }
  .section { padding: 70px 0; }
  .product-section { padding: 70px 0; }
  .product-info { padding: 36px 28px; }
  .product-info-name { font-size: 26px; }
  .product-desc { font-size: 14px; }
  .product-slider { min-height: 300px; padding: 24px 20px 64px; }
  .section-title { font-size: 28px; }
  .capabilities-grid { grid-template-columns: 1fr; }
  .sdlc-wrap { padding: 28px 20px; }
  .sdlc-steps { flex-wrap: wrap; gap: 8px 0; }
  .sdlc-step { min-width: 25%; margin-bottom: 16px; }
  .sdlc-line { display: none; }
  .philosophy-tabs-nav { flex-direction: column; align-items: center; }
  .philosophy-tab-btn { width: 100%; max-width: 420px; justify-content: flex-start; }
  .drill-phase { flex-direction: column; gap: 12px; }
  .drill-phase-arrow { transform: rotate(90deg); align-self: center; margin: -2px 0; }
  .drill-gains { flex-direction: column; }
  .drill-hero { flex-direction: column; text-align: center; }
  .footer-grid { grid-template-columns: repeat(2,1fr); gap: 32px; }
  .footer-brand { grid-column: span 2; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .cta-title { font-size: 24px; }
  .cta-banner { flex-direction: column; align-items: flex-start; gap: 24px; }
  .cta-actions { width: 100%; }
  .btn-cta-primary,
  .btn-cta-ghost { flex: 1; }
}

/* ========== Responsive: 480px ========== */
@media (max-width: 480px) {
  .hero-title { font-size: 26px; }
  .hero-title-sub { font-size: 16px; }
  .hero-buttons { flex-direction: column; width: 100%; }
  .hero-orbit { width: 280px; height: 280px; }
  .hero-orbit-ring-2, .hero-orbit-ring-3 { display: none; }
  .hero-orbit-tag { font-size: 11px; padding: 6px 12px; }
  .process-grid { grid-template-columns: 1fr; }
  .why-stat { flex: 0 0 100%; }
  .why-stat-num { font-size: 30px; }
  .product-cta { flex-direction: column; align-items: flex-start; gap: 12px; }
  .product-desc { font-size: 14px; }
  .sdlc-step { min-width: 33%; }
  .partners-track { gap: 24px; }
  .partner-item { min-width: 100%; height: 56px; font-size: 15px; padding: 0 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
}