/* ==========================================================================
   netsa — 官网样式表
   品牌：深空蓝底 + 青色信号光，贴合产品大屏视觉
   ========================================================================== */

:root {
  --bg: #070B13;
  --bg-soft: #0A101C;
  --panel: #0D1524;
  --panel-2: #111B2E;
  --line: rgba(148, 178, 255, 0.12);
  --line-strong: rgba(148, 178, 255, 0.24);
  --text: #E9EFFA;
  --text-2: #A6B4CB;
  --text-3: #6F809B;
  --cyan: #2DD4E8;
  --cyan-soft: #67E8F9;
  --blue: #4F7BFF;
  --violet: #8B5CF6;
  --red: #FF5470;
  --green: #34D399;
  --amber: #F5B544;
  --radius: 16px;
  --maxw: 1180px;
  --sans: "Inter", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei",
    system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", "Cascadia Mono", Consolas, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

a {
  color: inherit;
}

button {
  font-family: inherit;
}

::selection {
  background: rgba(45, 212, 232, 0.28);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 布局基础 ---------- */

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  position: relative;
  padding: 100px 0;
}

.section--tight {
  padding: 70px 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 48px;
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #7DD3FC;
}

.eyebrow::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(45, 212, 232, 0.14);
}

.title {
  margin: 16px 0 16px;
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.03em;
  font-weight: 750;
  text-wrap: balance;
}

.title .grad {
  background: linear-gradient(100deg, #67E8F9, #6C8CFF 60%, #A78BFA);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sub {
  margin: 0;
  text-wrap: pretty;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-2);
}

.section-head--center .sub {
  max-width: 640px;
  margin: 0 auto;
}

.mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 48px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.25s ease,
    background-color 0.2s ease, border-color 0.2s ease;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex: none;
}

.btn-primary {
  background: linear-gradient(135deg, #45DCF0 0%, #4F7BFF 70%);
  color: #04101C;
  box-shadow: 0 12px 30px -12px rgba(45, 180, 232, 0.75),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -14px rgba(79, 123, 255, 0.8),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.025);
  border-color: var(--line-strong);
  color: var(--text);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(148, 178, 255, 0.42);
  transform: translateY(-2px);
}

.btn-sm {
  height: 38px;
  padding: 0 16px;
  border-radius: 9px;
  font-size: 13.5px;
}

.btn-block {
  width: 100%;
}

/* ---------- 顶部导航 ---------- */

.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background-color 0.3s ease, border-color 0.3s ease,
    backdrop-filter 0.3s ease;
  border-bottom: 1px solid transparent;
}

.header.is-scrolled {
  background: rgba(7, 11, 19, 0.78);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  flex: none;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, #5CE1F2, #4F7BFF);
  color: #04121F;
  box-shadow: 0 8px 22px -8px rgba(45, 212, 232, 0.7);
}

.brand-mark svg {
  width: 18px;
  height: 18px;
}

.brand-name {
  font-size: 18px;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.brand-sub {
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.04em;
  border-left: 1px solid var(--line-strong);
  padding-left: 10px;
  line-height: 1.2;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-links a {
  padding: 8px 13px;
  border-radius: 8px;
  color: var(--text-2);
  font-size: 14.5px;
  text-decoration: none;
  transition: color 0.18s ease, background-color 0.18s ease;
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.nav-links a.is-active {
  color: #fff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 9px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  padding: 0;
  place-items: center;
}

.nav-toggle span {
  display: block;
  width: 17px;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.nav-toggle span + span {
  margin-top: 5px;
}

.header.is-open .nav-toggle span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.header.is-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

.header.is-open .nav-toggle span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  padding: 0 24px 24px;
  background: rgba(7, 11, 19, 0.98);
  border-bottom: 1px solid var(--line);
}

.mobile-menu a {
  display: block;
  padding: 14px 4px;
  color: var(--text-2);
  text-decoration: none;
  font-size: 15px;
  border-bottom: 1px solid rgba(148, 178, 255, 0.08);
}

.mobile-menu .btn {
  margin-top: 18px;
  color: #04101C;
}

/* ---------- 首屏 ---------- */

.hero {
  position: relative;
  padding: 130px 0 40px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: -160px 0 0;
  pointer-events: none;
  z-index: 0;
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
      ellipse 60% 50% at 62% 26%,
      rgba(45, 125, 232, 0.2),
      transparent 70%
    ),
    radial-gradient(
      ellipse 45% 40% at 18% 8%,
      rgba(45, 212, 232, 0.12),
      transparent 70%
    ),
    radial-gradient(
      ellipse 40% 40% at 92% 60%,
      rgba(139, 92, 246, 0.1),
      transparent 70%
    );
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      to right,
      rgba(148, 178, 255, 0.055) 1px,
      transparent 1px
    ),
    linear-gradient(to bottom, rgba(148, 178, 255, 0.055) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 32%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(
    ellipse 70% 60% at 50% 32%,
    #000 20%,
    transparent 78%
  );
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px 6px 7px;
  border-radius: 100px;
  border: 1px solid rgba(45, 212, 232, 0.24);
  background: rgba(45, 212, 232, 0.06);
  font-size: 12.5px;
  color: #A5EEF7;
  letter-spacing: 0.02em;
}

.hero-badge b {
  padding: 2px 8px;
  border-radius: 100px;
  background: rgba(45, 212, 232, 0.16);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.hero h1 {
  margin: 22px 0 0;
  font-size: clamp(34px, 4.7vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.038em;
  font-weight: 800;
}

.hero h1 .grad {
  background: linear-gradient(100deg, #6EE7F9 5%, #6C8CFF 55%, #A78BFA 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  margin: 24px 0 0;
  text-wrap: pretty;
  max-width: 552px;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
  color: var(--text-2);
}

.lede strong {
  color: #DDE7F7;
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-note {
  margin: 14px 0 0;
  font-size: 12.5px;
  color: var(--text-3);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.fact b {
  display: block;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.fact b i {
  font-style: normal;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-3);
  margin-left: 3px;
}

.fact span {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--text-3);
  line-height: 1.4;
}

/* 产品截图 */

.shot {
  position: relative;
}

.shot::before {
  content: "";
  position: absolute;
  inset: 10% -12% -16% -8%;
  background: radial-gradient(
    ellipse at 60% 60%,
    rgba(79, 123, 255, 0.24),
    transparent 66%
  );
  filter: blur(24px);
  z-index: -1;
}

.shot-frame {
  position: relative;
  border-radius: 14px;
  border: 1px solid rgba(148, 178, 255, 0.2);
  background: #0A101C;
  overflow: hidden;
  box-shadow: 0 50px 90px -40px rgba(0, 0, 0, 0.95),
    0 0 0 1px rgba(255, 255, 255, 0.02) inset;
}

.shot-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  padding: 0 13px;
  background: #0B1322;
  border-bottom: 1px solid rgba(148, 178, 255, 0.1);
}

.shot-bar i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2B3A52;
}

.shot-bar i:first-child {
  background: #FF5F57;
  opacity: 0.8;
}

.shot-bar i:nth-child(2) {
  background: #FEBC2E;
  opacity: 0.8;
}

.shot-bar i:nth-child(3) {
  background: #28C840;
  opacity: 0.8;
}

.shot-url {
  margin-left: 12px;
  padding: 2px 10px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.04);
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-3);
}

.shot img {
  width: 100%;
  height: auto;
}

.float-card {
  position: absolute;
  padding: 12px 15px;
  border-radius: 12px;
  border: 1px solid rgba(148, 178, 255, 0.2);
  background: rgba(11, 18, 32, 0.9);
  backdrop-filter: blur(14px);
  box-shadow: 0 24px 50px -20px rgba(0, 0, 0, 0.9);
  z-index: 2;
}

.float-card .fc-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.03em;
}

.float-card .fc-value {
  margin-top: 5px;
  font-size: 22px;
  font-weight: 750;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.float-card .fc-value small {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-2);
  margin-left: 4px;
}

.float-card .fc-meta {
  margin-top: 3px;
  font-size: 11px;
  color: var(--text-3);
}

.fc-1 {
  left: -26px;
  bottom: -42px;
  animation: float 7s ease-in-out infinite;
}

.fc-2 {
  right: -26px;
  top: -26px;
  animation: float 8.5s ease-in-out infinite reverse;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  animation: pulse 2.4s ease-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55);
  }
  70% {
    box-shadow: 0 0 0 7px rgba(52, 211, 153, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0);
  }
}

/* ---------- 指标条 ---------- */

.kpi {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 56px;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(
    180deg,
    rgba(17, 27, 46, 0.72),
    rgba(10, 16, 28, 0.6)
  );
  backdrop-filter: blur(10px);
}

.kpi-item {
  padding: 26px 28px;
  border-right: 1px solid var(--line);
}

.kpi-item:last-child {
  border-right: 0;
}

.kpi-num {
  display: flex;
  align-items: baseline;
  gap: 5px;
  font-size: clamp(24px, 2.4vw, 30px);
  font-weight: 750;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.kpi-num em {
  font-style: normal;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
}

.kpi-item p {
  margin: 7px 0 0;
  font-size: 13px;
  color: var(--text-3);
}

/* ---------- 日志格式滚动条 ---------- */

.logos {
  padding: 46px 0 0;
}

.logos-label {
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 22px;
}

.marquee {
  position: relative;
  overflow: hidden;
  mask-image: linear-gradient(
    90deg,
    transparent,
    #000 7%,
    #000 93%,
    transparent
  );
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent,
    #000 7%,
    #000 93%,
    transparent
  );
  padding: 10px 0;
}

.marquee-track {
  display: flex;
  width: max-content;
  gap: 10px;
  animation: marquee 52s linear infinite;
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

.chip {
  flex: none;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.025);
  font-family: var(--mono);
  font-size: 12.5px;
  color: #AFC1D9;
  white-space: nowrap;
}

@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

/* ---------- 对比 ---------- */

.compare {
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(10, 16, 28, 0.6);
}

.compare-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table.cmp {
  width: 100%;
  min-width: 880px;
  border-collapse: collapse;
  font-size: 14.5px;
}

table.cmp th {
  text-align: left;
  padding: 18px 24px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  font-weight: 600;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
}

table.cmp th:nth-child(1) {
  width: 16%;
}

table.cmp th:nth-child(2) {
  width: 29%;
}

table.cmp th:nth-child(3) {
  width: 26%;
  color: var(--text-3);
}

table.cmp th:nth-child(4) {
  width: 29%;
  color: #7DD3FC;
}

table.cmp td:nth-child(3) {
  color: #8194AE;
}

table.cmp td {
  padding: 18px 24px;
  border-bottom: 1px solid rgba(148, 178, 255, 0.07);
  color: var(--text-2);
  vertical-align: top;
  line-height: 1.65;
}

table.cmp tr:last-child td {
  border-bottom: 0;
}

table.cmp td:first-child {
  color: var(--text);
  font-weight: 600;
}

table.cmp td:last-child {
  color: #D8E5F6;
  background: linear-gradient(
    90deg,
    rgba(45, 212, 232, 0.05),
    rgba(79, 123, 255, 0.02)
  );
}

table.cmp td:last-child::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--cyan);
  vertical-align: 2px;
}

.compare-hint {
  display: none;
  padding: 10px 16px;
  font-size: 12px;
  color: var(--text-3);
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.2);
}

/* ---------- 能力网格 ---------- */

.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.card {
  position: relative;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(165deg, #0E1727 0%, #0A111C 100%);
  transition: transform 0.25s ease, border-color 0.25s ease,
    box-shadow 0.25s ease;
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  inset: -1px -1px auto auto;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(45, 212, 232, 0.14), transparent 65%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(148, 178, 255, 0.3);
  box-shadow: 0 26px 50px -30px rgba(0, 0, 0, 0.9);
}

.card:hover::after {
  opacity: 1;
}

.b-half {
  grid-column: span 3;
}

.b-third {
  grid-column: span 2;
}

.b-full {
  grid-column: span 6;
}

.wide-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: center;
}

.wide-lead {
  max-width: 440px;
}

.b-full-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 30px;
}

.b-full-split div {
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.b-full-split b {
  display: block;
  margin-bottom: 3px;
  font-size: 13.5px;
  font-weight: 650;
  color: var(--text);
}

.b-full-split span {
  display: block;
  font-size: 12.4px;
  line-height: 1.6;
  color: var(--text-3);
}

.ic {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 18px;
  border-radius: 11px;
  border: 1px solid rgba(45, 212, 232, 0.2);
  background: linear-gradient(
    160deg,
    rgba(45, 212, 232, 0.14),
    rgba(79, 123, 255, 0.06)
  );
  color: var(--cyan-soft);
}

.ic svg {
  width: 20px;
  height: 20px;
}

.card h3 {
  margin: 0 0 9px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.card p {
  margin: 0;
  font-size: 14.3px;
  line-height: 1.78;
  color: var(--text-2);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}

.tag {
  padding: 4px 9px;
  border-radius: 6px;
  background: rgba(148, 178, 255, 0.07);
  border: 1px solid rgba(148, 178, 255, 0.1);
  font-size: 11.5px;
  color: #9FB0C9;
  font-family: var(--mono);
}

.code-mini {
  margin-top: 20px;
  padding: 12px 14px;
  border-radius: 9px;
  border: 1px solid rgba(148, 178, 255, 0.12);
  background: #070D17;
  font-family: var(--mono);
  font-size: 12px;
  color: #8FD9E4;
  overflow-x: auto;
  white-space: nowrap;
}

.code-mini .cm {
  color: #55677F;
}

/* ---------- 功能标签页 ---------- */

.tabs {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 34px;
  align-items: start;
}

.tab-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: sticky;
  top: 96px;
}

.tab-btn {
  display: block;
  width: 100%;
  padding: 14px 16px;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--text-2);
  font-size: 14.5px;
  line-height: 1.35;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn .tb-k {
  display: block;
  margin-top: 3px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.04em;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
}

.tab-btn[aria-selected="true"] {
  background: linear-gradient(
    90deg,
    rgba(45, 212, 232, 0.13),
    rgba(79, 123, 255, 0.03)
  );
  border-color: rgba(45, 212, 232, 0.26);
  color: #fff;
}

.tab-btn[aria-selected="true"] .tb-k {
  color: #7DD3FC;
}

.tab-panels {
  min-width: 0;
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
  animation: fadeUp 0.45s ease both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.panel-head h3 {
  margin: 0 0 10px;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.panel-head p {
  margin: 0;
  max-width: 680px;
  font-size: 14.8px;
  line-height: 1.8;
  color: var(--text-2);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 22px;
  margin: 22px 0 24px;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 22px;
  font-size: 13.8px;
  line-height: 1.65;
  color: var(--text-2);
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 1px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.panel-shot {
  border-radius: 12px;
  border: 1px solid rgba(148, 178, 255, 0.18);
  overflow: hidden;
  background: #0A101C;
  box-shadow: 0 30px 60px -34px rgba(0, 0, 0, 0.9);
}

.panel-shot img {
  width: 100%;
}

/* ---------- 工作流程 ---------- */

.flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  margin-top: 8px;
}

.flow-step {
  position: relative;
  padding: 22px 18px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(170deg, rgba(17, 27, 46, 0.8), rgba(9, 15, 26, 0.8));
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.flow-step:hover {
  border-color: rgba(45, 212, 232, 0.3);
  transform: translateY(-3px);
}

.flow-step::after {
  content: "";
  position: absolute;
  top: 42px;
  right: -14px;
  width: 14px;
  height: 1px;
  background: linear-gradient(90deg, rgba(45, 212, 232, 0.5), transparent);
}

.flow-step:last-child::after {
  display: none;
}

.flow-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.08em;
}

.flow-step h4 {
  margin: 8px 0 7px;
  font-size: 15px;
  font-weight: 650;
}

.flow-step p {
  margin: 0;
  font-size: 12.6px;
  line-height: 1.65;
  color: var(--text-3);
}

.flow-note {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 26px;
  padding: 18px 22px;
  border: 1px dashed rgba(148, 178, 255, 0.18);
  border-radius: 12px;
  font-size: 13px;
  color: var(--text-3);
}

.flow-note b {
  color: var(--text-2);
  font-weight: 600;
}

/* ---------- 性能数字 ---------- */

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: var(--line);
}

.metric {
  padding: 32px 28px;
  background: linear-gradient(180deg, #0C1422, #090F1A);
}

.metric b {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: clamp(30px, 3.6vw, 40px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(120deg, #FFFFFF 10%, #BBD9FF 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.metric b span {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--text-2);
  -webkit-text-fill-color: var(--text-2);
}

.metric p {
  margin: 12px 0 0;
  font-size: 13.5px;
  color: var(--text-3);
  line-height: 1.65;
}

.metrics-source {
  margin: 16px 0 0;
  font-size: 12px;
  color: #5C6C85;
}

/* ---------- 场景 ---------- */

.scenes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.scene {
  position: relative;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(170deg, rgba(16, 25, 43, 0.9), rgba(9, 14, 24, 0.9));
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.scene:hover {
  border-color: rgba(148, 178, 255, 0.28);
  transform: translateY(-3px);
}

.scene-k {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: #7DD3FC;
  text-transform: uppercase;
}

.scene h3 {
  margin: 10px 0 9px;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.scene p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.75;
  color: var(--text-2);
}

.scene-metric {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--text-3);
}

.scene-metric b {
  color: #CFE0F4;
  font-weight: 600;
}

/* ---------- 案例 ---------- */

.cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.case {
  display: flex;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(165deg, #0E1727, #0A111C);
}

.case-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.pill {
  padding: 4px 10px;
  border-radius: 100px;
  border: 1px solid rgba(45, 212, 232, 0.22);
  background: rgba(45, 212, 232, 0.08);
  font-size: 11.5px;
  color: #9DE9F4;
  white-space: nowrap;
}

.case-anon {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-3);
}

.case h3 {
  margin: 16px 0 0;
  font-size: 17.5px;
  line-height: 1.4;
  letter-spacing: -0.015em;
}

.quote {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-2);
}

.case-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: auto;
  padding-top: 22px;
}

.case-stats b {
  display: block;
  font-size: clamp(19px, 1.6vw, 21px);
  white-space: nowrap;
  font-weight: 750;
  letter-spacing: -0.025em;
  font-variant-numeric: tabular-nums;
  color: #EAF2FE;
}

.case-stats span {
  display: block;
  margin-top: 3px;
  font-size: 11.8px;
  color: var(--text-3);
  line-height: 1.45;
}

.cases-note {
  margin: 20px 0 0;
  font-size: 12px;
  color: #5C6C85;
}

/* ---------- 价格 ---------- */

.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}

.plan {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(175deg, #0D1626, #090F19);
}

.plan--featured {
  border-color: rgba(45, 212, 232, 0.4);
  background: linear-gradient(
    180deg,
    rgba(45, 212, 232, 0.08),
    rgba(13, 22, 38, 0.95) 42%
  );
  box-shadow: 0 34px 70px -36px rgba(45, 212, 232, 0.45);
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 12px;
  border-radius: 100px;
  background: linear-gradient(120deg, #45DCF0, #4F7BFF);
  color: #04101C;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.plan-name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.plan-desc {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--text-3);
  min-height: 40px;
}

.price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 18px 0 2px;
}

.price .num {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.price .unit {
  font-size: 13px;
  color: var(--text-3);
}

.price-sub {
  font-size: 12.5px;
  color: var(--text-3);
  min-height: 20px;
}

.plan ul {
  list-style: none;
  margin: 22px 0 26px;
  padding: 0;
  display: grid;
  gap: 11px;
}

.plan li {
  display: flex;
  gap: 9px;
  font-size: 13.8px;
  line-height: 1.6;
  color: var(--text-2);
}

.plan li svg {
  flex: none;
  width: 15px;
  height: 15px;
  margin-top: 4px;
  color: var(--cyan);
}

.plan li.muted {
  color: var(--text-3);
}

.plan li.muted svg {
  color: #46566E;
}

.plan .btn {
  margin-top: auto;
}

.plan-note {
  margin-top: 14px;
  font-size: 11.5px;
  color: var(--text-3);
  text-align: center;
}

.price-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 26px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 13px;
  color: var(--text-3);
}

.price-foot a {
  color: #7DD3FC;
  text-decoration: none;
  border-bottom: 1px solid rgba(125, 211, 252, 0.35);
}

/* ---------- FAQ ---------- */

.faq-wrap {
  max-width: 880px;
  margin: 0 auto;
}

.faq {
  border-top: 1px solid var(--line);
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 4px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary:hover {
  color: #BFE9F2;
}

.faq .plus {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.faq .plus::before,
.faq .plus::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 1.5px;
  background: var(--text-2);
  transform: translate(-50%, -50%);
  transition: transform 0.25s ease, background-color 0.25s ease;
}

.faq .plus::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq details[open] .plus {
  border-color: rgba(45, 212, 232, 0.5);
  background: rgba(45, 212, 232, 0.1);
}

.faq details[open] .plus::before,
.faq details[open] .plus::after {
  background: var(--cyan);
}

.faq details[open] .plus::after {
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
}

.faq .ans {
  padding: 0 40px 24px 4px;
  font-size: 14.6px;
  line-height: 1.85;
  color: var(--text-2);
}

.faq .ans code {
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(148, 178, 255, 0.1);
  font-family: var(--mono);
  font-size: 12.5px;
  color: #9DE9F4;
}

/* ---------- 联系 ---------- */

.contact {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
}

.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 60% 70% at 30% 50%,
    rgba(45, 212, 232, 0.1),
    transparent 70%
  );
  pointer-events: none;
}

.contact-grid {
  position: relative;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 48px;
  align-items: start;
}

.contact h2 {
  margin: 16px 0 16px;
  font-size: clamp(26px, 3.2vw, 38px);
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.contact-points {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.contact-points li {
  display: flex;
  gap: 12px;
  font-size: 14.2px;
  line-height: 1.7;
  color: var(--text-2);
}

.contact-points svg {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  color: var(--cyan);
}

.contact-meta {
  display: grid;
  gap: 10px;
  margin-top: 32px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--text-3);
}

.contact-meta a {
  color: #9FDDEA;
  text-decoration: none;
}

.contact-meta a:hover {
  text-decoration: underline;
}

.contact-meta div {
  display: flex;
  align-items: center;
  gap: 9px;
}

.contact-meta svg {
  width: 15px;
  height: 15px;
  color: var(--text-3);
  flex: none;
}

.form-card {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(170deg, #0E1727, #0A111C);
  box-shadow: 0 40px 80px -50px rgba(0, 0, 0, 0.9);
}

.form-card h3 {
  margin: 0 0 4px;
  font-size: 18px;
}

.form-card > p {
  margin: 0 0 22px;
  font-size: 13px;
  color: var(--text-3);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.field {
  margin-bottom: 14px;
}

.field label {
  display: block;
  margin-bottom: 7px;
  font-size: 12.5px;
  color: var(--text-2);
}

.field label .req {
  color: var(--cyan);
  margin-left: 2px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid rgba(148, 178, 255, 0.16);
  border-radius: 9px;
  background: #070D17;
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  appearance: none;
}

.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236F809B' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 13px center;
  padding-right: 34px;
}

.field textarea {
  min-height: 92px;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #4E5D74;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: rgba(45, 212, 232, 0.55);
  box-shadow: 0 0 0 3px rgba(45, 212, 232, 0.12);
}

.form-agree {
  margin: 4px 0 18px;
  font-size: 11.8px;
  line-height: 1.6;
  color: var(--text-3);
}

.form-status {
  display: none;
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(52, 211, 153, 0.3);
  border-radius: 9px;
  background: rgba(52, 211, 153, 0.08);
  font-size: 13.5px;
  color: #A7F3D0;
}

.form-status.is-visible {
  display: block;
}

/* ---------- 页脚 ---------- */

.footer {
  position: relative;
  padding: 64px 0 34px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(9, 14, 24, 0.5), #05090F);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand p {
  margin: 16px 0 0;
  max-width: 320px;
  font-size: 13.2px;
  line-height: 1.8;
  color: var(--text-3);
}

.footer-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 20px;
  font-size: 13.5px;
  color: #7DD3FC;
  text-decoration: none;
}

.footer h4 {
  margin: 4px 0 16px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  font-weight: 600;
}

.footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.footer ul a {
  font-size: 13.5px;
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.18s ease;
}

.footer ul a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 52px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 12.2px;
  color: #56657C;
}

.footer-bottom div {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}


/* ==========================================================================
   深度重构新增模块
   ========================================================================== */

/* ---------- 交替底色 ---------- */

.section--alt {
  background: linear-gradient(180deg, rgba(11, 18, 31, 0.75), rgba(7, 11, 19, 0.25));
  border-top: 1px solid rgba(148, 178, 255, 0.07);
  border-bottom: 1px solid rgba(148, 178, 255, 0.07);
}

/* ---------- 适用对象 ---------- */

.personas {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.persona {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(170deg, #0D1626, #0A111C);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.persona:hover {
  transform: translateY(-3px);
  border-color: rgba(148, 178, 255, 0.28);
}

.persona-role {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  font-weight: 650;
  color: #D6E3F5;
}

.persona-role svg {
  width: 17px;
  height: 17px;
  color: var(--cyan);
  flex: none;
}

.persona-pain {
  margin: 0;
  padding-bottom: 13px;
  border-bottom: 1px dashed rgba(148, 178, 255, 0.14);
  font-size: 13.4px;
  line-height: 1.72;
  color: var(--text-3);
}

.persona-use {
  margin: 0;
  font-size: 13.4px;
  line-height: 1.75;
  color: #BDCDE2;
}

.persona-use span {
  display: inline-block;
  margin-right: 6px;
  padding: 1px 7px;
  border-radius: 5px;
  background: rgba(45, 212, 232, 0.13);
  color: #9AEBF5;
  font-size: 11.5px;
  font-weight: 600;
}

.honest-note {
  margin: 24px 0 0;
  padding: 18px 22px;
  border: 1px dashed rgba(245, 181, 68, 0.28);
  border-radius: 12px;
  background: rgba(245, 181, 68, 0.045);
  font-size: 13.2px;
  line-height: 1.8;
  color: var(--text-2);
}

.honest-note b {
  color: #F5B544;
  font-weight: 600;
}

/* ---------- 问题诊断 ---------- */

.pains {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.pain {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(170deg, rgba(16, 25, 43, 0.88), rgba(9, 14, 24, 0.9));
}

.pain-idx {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: #56677F;
}

.pain h3 {
  margin: 10px 0 12px;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.pain-old {
  margin: 0 0 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-size: 13.3px;
  line-height: 1.72;
  color: var(--text-3);
}

.pain-new {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: #C4D4E9;
}

.pain-new b {
  color: var(--cyan-soft);
  font-weight: 600;
}

.statement {
  position: relative;
  margin-top: 40px;
  padding: 46px 40px;
  border: 1px solid rgba(45, 212, 232, 0.18);
  border-radius: 18px;
  background:
    radial-gradient(ellipse 60% 120% at 80% 0%, rgba(79, 123, 255, 0.16), transparent 70%),
    linear-gradient(160deg, rgba(45, 212, 232, 0.07), rgba(10, 16, 28, 0.9) 55%);
  text-align: center;
  overflow: hidden;
}

.statement p {
  margin: 0;
  text-wrap: balance;
  font-size: clamp(18px, 2.1vw, 25px);
  line-height: 1.62;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: #EAF1FB;
}

.statement .grad {
  background: linear-gradient(100deg, #6EE7F9, #7C9BFF 55%, #B6A0FF);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 架构图 ---------- */

.arch {
  display: flex;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(13, 22, 37, 0.8), rgba(8, 13, 22, 0.92));
}

.arch-row {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 12px 0;
}

.arch-label {
  padding-left: 11px;
  border-left: 2px solid rgba(45, 212, 232, 0.35);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--text-3);
  text-transform: uppercase;
}

.arch-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.arch-chip {
  padding: 7px 12px;
  border: 1px solid rgba(148, 178, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.025);
  font-size: 12.7px;
  color: #B7C7DC;
}

.arch-flow {
  position: relative;
  height: 18px;
  margin-left: 42px;
  border-left: 1px dashed rgba(45, 212, 232, 0.3);
}

.arch-flow::after {
  content: "";
  position: absolute;
  left: -3.5px;
  bottom: 0;
  width: 6px;
  height: 6px;
  border-right: 1px solid rgba(45, 212, 232, 0.55);
  border-bottom: 1px solid rgba(45, 212, 232, 0.55);
  transform: rotate(45deg);
}

.arch-row--core {
  margin: 4px 0;
  padding: 16px;
  border: 1px solid rgba(45, 212, 232, 0.2);
  border-radius: 12px;
  background: linear-gradient(90deg, rgba(45, 212, 232, 0.07), rgba(79, 123, 255, 0.035));
}

.arch-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.arch-step {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  border: 1px solid rgba(148, 178, 255, 0.16);
  border-radius: 8px;
  background: rgba(7, 13, 23, 0.72);
  font-size: 12.6px;
  color: #CFE0F4;
  white-space: nowrap;
}

.arch-step i {
  display: grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(45, 212, 232, 0.15);
  color: #9AEBF5;
  font-family: var(--mono);
  font-size: 9.5px;
  font-style: normal;
}

.arch-step--final {
  border-color: rgba(45, 212, 232, 0.5);
  box-shadow: 0 0 0 1px rgba(45, 212, 232, 0.1), 0 10px 24px -14px rgba(45, 212, 232, 0.8);
}

.arch-arrow {
  color: #3B4B63;
  font-size: 12px;
}

.tech-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 18px;
  padding: 16px 20px;
  border: 1px dashed rgba(148, 178, 255, 0.16);
  border-radius: 12px;
  font-size: 12.6px;
  color: var(--text-3);
}

.tech-strip span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tech-strip span::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(45, 212, 232, 0.75);
}

.arch-notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.arch-note {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
}

.arch-note b {
  display: block;
  margin-bottom: 5px;
  font-size: 13.5px;
  color: #E2ECF9;
}

.arch-note span {
  font-size: 12.6px;
  line-height: 1.65;
  color: var(--text-3);
}

/* ---------- 能力分组 ---------- */

.cap-group {
  margin-bottom: 34px;
}

.cap-group:last-child {
  margin-bottom: 0;
}

.cap-group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}

.cap-group-head span {
  position: relative;
  padding-left: 14px;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #E9EFFA;
}

.cap-group-head span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 4px;
  height: 15px;
  border-radius: 3px;
  background: linear-gradient(180deg, #2DD4E8, #4F7BFF);
}

.cap-group-head i {
  font-style: normal;
  font-size: 12.5px;
  color: var(--text-3);
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ---------- 部署方案 ---------- */

.deploys {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.deploy {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(175deg, #0D1626, #090F19);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.deploy:hover {
  transform: translateY(-3px);
  border-color: rgba(148, 178, 255, 0.3);
}

.deploy-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 16px;
}

.deploy-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(45, 212, 232, 0.2);
  border-radius: 10px;
  background: rgba(45, 212, 232, 0.08);
  color: var(--cyan-soft);
}

.deploy-icon svg {
  width: 19px;
  height: 19px;
}

.deploy-tag {
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: #93A6C0;
  white-space: nowrap;
}

.deploy h3 {
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.deploy p {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--text-2);
}

.deploy-meta {
  list-style: none;
  margin: 18px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 7px;
}

.deploy-meta li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 12.1px;
  color: #C4D4E9;
}

.deploy-meta span {
  color: var(--text-3);
}

.deploy-detail {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 16px;
  margin-top: 18px;
}

.spec-panel,
.check-panel {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, #0C1422, #090F1A);
}

.spec-panel h3,
.check-panel h3 {
  margin: 0 0 4px;
  font-size: 16.5px;
  letter-spacing: -0.01em;
}

.spec-sub {
  margin: 0 0 18px;
  font-size: 12.5px;
  color: var(--text-3);
}

table.spec {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.9px;
}

table.spec th {
  padding: 9px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  white-space: nowrap;
}

table.spec td {
  padding: 11px 12px;
  border-bottom: 1px solid rgba(148, 178, 255, 0.07);
  color: var(--text-2);
}

table.spec tr:last-child td {
  border-bottom: 0;
}

table.spec td:nth-child(2) {
  color: #E4EEFB;
  font-weight: 600;
  white-space: nowrap;
}

table.spec td:nth-child(3) {
  white-space: nowrap;
}

.spec-note {
  margin: 14px 0 0;
  font-size: 11.8px;
  line-height: 1.7;
  color: #56677F;
}

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.checklist li {
  position: relative;
  padding-left: 24px;
  font-size: 12.8px;
  line-height: 1.62;
  color: var(--text-2);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 13px;
  height: 13px;
  border: 1px solid rgba(45, 212, 232, 0.45);
  border-radius: 4px;
  background: rgba(45, 212, 232, 0.09);
}

.checklist li::after {
  content: "";
  position: absolute;
  left: 3.5px;
  top: 7.5px;
  width: 6px;
  height: 3px;
  border-left: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(-45deg);
}

/* ---------- 实施路径 ---------- */

.path {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.path-step {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(170deg, rgba(16, 25, 43, 0.85), rgba(9, 14, 24, 0.9));
}

.path-step::after {
  content: "";
  position: absolute;
  top: 34px;
  right: -14px;
  width: 14px;
  height: 1px;
  background: linear-gradient(90deg, rgba(45, 212, 232, 0.45), transparent);
}

.path-step:last-child::after {
  display: none;
}

.path-day {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: #7DD3FC;
}

.path-step h3 {
  margin: 8px 0 9px;
  font-size: 16px;
}

.path-step p {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--text-2);
}

.path-out {
  display: block;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 11.8px;
  color: var(--text-3);
}

/* ---------- 其他补充 ---------- */

.compare-note {
  max-width: 880px;
  margin: 20px 0 0;
  font-size: 12.9px;
  line-height: 1.8;
  color: var(--text-3);
}

.boundary {
  margin-top: 18px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, #0C1422, #090F1A);
}

.boundary-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px 24px;
  margin-bottom: 22px;
}

.boundary-head h3 {
  margin: 0 0 5px;
  font-size: 16.5px;
  letter-spacing: -0.01em;
}

.boundary-head p {
  margin: 0;
  max-width: 660px;
  font-size: 12.8px;
  line-height: 1.7;
  color: var(--text-3);
}

.boundary-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid rgba(45, 212, 232, 0.28);
  border-radius: 8px;
  font-size: 12.5px;
  color: #7DD3FC;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.boundary-link:hover {
  background: rgba(45, 212, 232, 0.08);
  border-color: rgba(45, 212, 232, 0.5);
}

.boundary-link svg {
  width: 13px;
  height: 13px;
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.b-item {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
}

.b-tag {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid rgba(45, 212, 232, 0.32);
  border-radius: 100px;
  background: rgba(45, 212, 232, 0.1);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #9DE9F4;
}

.b-tag--sub {
  border-color: rgba(79, 123, 255, 0.38);
  background: rgba(79, 123, 255, 0.12);
  color: #A8BEFF;
}

.b-tag--svc {
  border-color: rgba(245, 181, 68, 0.32);
  background: rgba(245, 181, 68, 0.1);
  color: #F3C877;
}

.b-item ul {
  list-style: none;
  margin: 14px 0 10px;
  padding: 0;
  display: grid;
  gap: 7px;
}

.b-item li {
  position: relative;
  padding-left: 13px;
  font-size: 12.9px;
  line-height: 1.55;
  color: #C4D4E9;
}

.b-item li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(148, 178, 255, 0.55);
}

.b-item p {
  margin: 0;
  font-size: 11.6px;
  line-height: 1.6;
  color: var(--text-3);
}

.boundary-foot {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 12.2px;
  line-height: 1.65;
  color: var(--text-3);
}

.boundary-foot b {
  display: inline-block;
  min-width: 64px;
  margin-right: 8px;
  font-weight: 600;
  color: #93A6C0;
}

.resources {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.resource {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(170deg, #0D1626, #0A111C);
  text-decoration: none;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.resource:hover {
  transform: translateY(-3px);
  border-color: rgba(45, 212, 232, 0.32);
}

.resource .ic {
  margin-bottom: 16px;
}

.resource h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--text);
}

.resource p {
  flex: 1;
  margin: 0 0 18px;
  font-size: 12.9px;
  line-height: 1.7;
  color: var(--text-2);
}

.resource-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: #7DD3FC;
}

.resource-link svg {
  width: 13px;
  height: 13px;
}

.faq-group {
  margin: 34px 0 2px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #7DD3FC;
}

.faq-group:first-child {
  margin-top: 0;
}

.faq .ans a {
  color: #7DD3FC;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.self-serve {
  margin-top: 28px;
  padding: 18px 20px;
  border: 1px dashed rgba(45, 212, 232, 0.26);
  border-radius: 12px;
  background: rgba(45, 212, 232, 0.045);
}

.self-serve b {
  display: block;
  margin-bottom: 5px;
  font-size: 13.4px;
  color: #DFF6FA;
}

.self-serve p {
  margin: 0 0 9px;
  font-size: 12.8px;
  line-height: 1.7;
  color: var(--text-2);
}

.self-serve a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.8px;
  color: #7DD3FC;
  text-decoration: none;
}

.self-serve a svg {
  width: 13px;
  height: 13px;
}

/* ---------- 滚动出现 ---------- */

/* 仅在 JS 可用时启用进入动画，保证无脚本环境下内容依然可见 */
.reveal {
  opacity: 1;
  transform: none;
}

html.js-ready .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.75s cubic-bezier(0.2, 0.7, 0.2, 1),
    transform 0.75s cubic-bezier(0.2, 0.7, 0.2, 1);
  transition-delay: var(--d, 0ms);
}

html.js-ready .reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .hero {
    padding-top: 116px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .hero-visual {
    max-width: 720px;
  }

  .fc-1 {
    left: -10px;
    bottom: -18px;
  }

  .fc-2 {
    right: -10px;
    top: -18px;
  }

  .float-card .fc-value {
    font-size: 18px;
  }

  .b-half {
    grid-column: span 6;
  }

  .b-third {
    grid-column: span 3;
  }

  .tabs {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .tab-list {
    position: static;
    flex-direction: row;
    overflow-x: auto;
    gap: 8px;
    padding-bottom: 6px;
    scrollbar-width: none;
  }

  .tab-list::-webkit-scrollbar {
    display: none;
  }

  .tab-btn {
    flex: none;
    width: auto;
    white-space: nowrap;
    padding: 10px 16px;
  }

  .tab-btn .tb-k {
    display: none;
  }

  .flow {
    grid-template-columns: repeat(3, 1fr);
  }

  .flow-step:nth-child(3n)::after {
    display: none;
  }

  .flow-step::after {
    right: -14px;
  }

  .scenes,
  .cases,
  .price-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .plan--featured {
    transform: none;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
  }
}

@media (max-width: 960px) {
  .nav-links,
  .nav-actions .btn-ghost {
    display: none;
  }

  .nav-toggle {
    display: grid;
  }

  .header.is-open .mobile-menu {
    display: block;
  }

  .header.is-open {
    background: rgba(7, 11, 19, 0.98);
    border-bottom-color: var(--line);
  }

  .tab-btn {
    font-size: 13.5px;
  }
}

@media (max-width: 860px) {
  .section {
    padding: 76px 0;
  }

  .kpi {
    grid-template-columns: repeat(2, 1fr);
  }

  .kpi-item:nth-child(2) {
    border-right: 0;
  }

  .kpi-item:nth-child(1),
  .kpi-item:nth-child(2) {
    border-bottom: 1px solid var(--line);
  }

  .metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .scenes,
  .cases,
  .price-grid {
    grid-template-columns: 1fr;
  }

  .plan-desc {
    min-height: 0;
  }

  .compare-hint {
    display: none;
  }

  table.cmp {
    min-width: 0;
  }

  table.cmp thead {
    display: none;
  }

  table.cmp,
  table.cmp tbody,
  table.cmp tr,
  table.cmp td {
    display: block;
    width: 100%;
  }

  table.cmp tr {
    padding: 20px 18px;
    border-bottom: 1px solid var(--line);
  }

  table.cmp tr:last-child {
    border-bottom: 0;
  }

  table.cmp td {
    padding: 0;
    border: 0;
    background: none;
  }

  table.cmp td:first-child {
    margin-bottom: 12px;
    font-size: 15px;
    color: #fff;
  }

  table.cmp td:nth-child(2),
  table.cmp td:nth-child(3) {
    padding-left: 16px;
    font-size: 13.6px;
  }

  table.cmp td:nth-child(2)::before,
  table.cmp td:nth-child(3)::before,
  table.cmp td:nth-child(4)::before {
    display: block;
    width: auto;
    height: auto;
    margin: 0 0 4px;
    background: none;
    border-radius: 0;
    font-family: var(--sans);
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-3);
  }

  table.cmp td:nth-child(2)::before {
    content: "传统商业 SIEM";
  }

  table.cmp td:nth-child(3)::before {
    content: "自建 ELK 管道";
  }

  table.cmp td:nth-child(4)::before {
    content: "netsa";
    color: #7DD3FC;
  }

  table.cmp td:nth-child(2),
  table.cmp td:nth-child(3) {
    margin-bottom: 10px;
    opacity: 0.72;
    border-left: 2px solid rgba(148, 178, 255, 0.16);
  }

  table.cmp td:nth-child(4) {
    background: none;
    border-left: 2px solid rgba(45, 212, 232, 0.55);
  }

  .flow {
    grid-template-columns: repeat(2, 1fr);
  }

  .flow-step:nth-child(3n)::after {
    display: block;
  }

  .flow-step:nth-child(2n)::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 18px;
  }

  .hero {
    padding-top: 104px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-facts {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 20px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .float-card {
    padding: 9px 11px;
  }

  .fc-2 {
    display: none;
  }

  .fc-1 {
    left: 50%;
    bottom: -24px;
    transform: translateX(-50%);
    animation: none;
  }

  .shot {
    margin-bottom: 24px;
  }

  .float-card {
    display: none;
  }

  .code-mini {
    white-space: normal;
    word-break: break-word;
    line-height: 1.7;
  }

  .section-head {
    margin-bottom: 34px;
  }

  .title {
    font-size: 27px;
  }

  .b-third {
    grid-column: span 6;
  }

  .wide-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .b-full-split {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .b-full-split div {
    padding-left: 12px;
  }

  .kpi-item {
    padding: 20px 18px;
  }

  .feature-list {
    grid-template-columns: 1fr;
  }

  .flow {
    grid-template-columns: 1fr;
  }

  .flow-step::after {
    display: none !important;
  }

  .metrics {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .form-card {
    padding: 22px;
  }

  .footer {
    padding-top: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .brand-sub {
    display: none;
  }

  .faq summary {
    font-size: 15px;
    padding: 19px 0;
  }

  .faq .ans {
    padding-right: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ==========================================================================
   重构模块响应式
   ========================================================================== */

@media (max-width: 1080px) {
  .personas,
  .pains,
  .deploys,
  .path,
  .resources {
    grid-template-columns: repeat(2, 1fr);
  }

  .deploy-detail {
    grid-template-columns: 1fr;
  }

  .statement {
    padding: 38px 30px;
  }
}

@media (max-width: 860px) {
  .cap-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .arch-notes {
    grid-template-columns: 1fr;
  }

  .boundary-grid {
    grid-template-columns: 1fr;
  }

  .path-step::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .personas,
  .pains,
  .deploys,
  .path,
  .resources,
  .cap-grid {
    grid-template-columns: 1fr;
  }

  .arch {
    padding: 16px;
  }

  .arch-row {
    grid-template-columns: 1fr;
    gap: 9px;
    padding: 10px 0;
  }

  .arch-row--core {
    padding: 14px;
  }

  .arch-flow {
    margin-left: 12px;
    height: 14px;
  }

  .arch-arrow {
    display: none;
  }

  .arch-step {
    font-size: 12px;
    padding: 6px 10px;
  }

  .statement {
    margin-top: 28px;
    padding: 26px 20px;
  }

  .statement p {
    font-size: 17px;
  }

  .deploy-meta li {
    font-size: 12px;
  }

  .spec-panel,
  .check-panel {
    padding: 20px 18px;
  }

  table.spec {
    font-size: 12px;
  }

  table.spec th,
  table.spec td {
    padding: 9px 7px;
  }

  .spec-note {
    font-size: 11.2px;
  }

  .boundary {
    padding: 20px 18px;
  }

  .honest-note {
    padding: 16px 18px;
    font-size: 12.8px;
  }

  .faq-group {
    margin-top: 28px;
  }
}

/* ---------- 表单：蜜罐与失败提示 ---------- */

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status.is-error {
  border-color: rgba(255, 84, 112, 0.35);
  background: rgba(255, 84, 112, 0.08);
  color: #FFC2CD;
}

.form-status a {
  color: inherit;
  text-decoration: underline;
}